UPDATING revision 324740
1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of 16stable/10, and then rebuild without this option. The bootstrap process from 17older version of current is a bit fragile. 18 1920171017 p22 FreeBSD-SA-17:07.wpa 20 21 Fix WPA2 protocol vulnerability. [SA-17:07] 22 2320170810 p21 FreeBSD-SA-17:06.openssh 24 25 Fix OpenSSH Denial of Service vulnerability. [SA-17:06] 26 2720170712 p20 FreeBSD-SA-17:05.heimdal 28 FreeBSD-EN-17:06.hyperv 29 30 Fix heimdal KDC-REP service name validation vulnerability [SA-17:05] 31 32 Boot compatibility improvements with Azure VMs. [EN-17:06] 33 3420170427 p19 FreeBSD-SA-17:04.ipfilter 35 36 Fix ipfilter(4) fragment handling panic. [SA-17:04] 37 3820170412 p18 FreeBSD-SA-17:03.ntp 39 FreeBSD-EN-17:05.xen 40 41 Fix multiple vulnerabilities of ntp. [SA-17:03] 42 43 Xen migration enhancements. [EN-17:05] 44 4520170223 p17 FreeBSD-SA-17:02.openssl 46 47 Fix OpenSSL RC4_MD5 cipher vulnerability. 48 4920170111 p16 FreeBSD-SA-17:01.openssh 50 51 Fix multiple vulnerabilities of OpenSSH. 52 5320161222 p15 FreeBSD-SA-16:39.ntp 54 55 Fix multiple vulnerabilities of ntp. 56 5720161208 p14 FreeBSD-SA-16:37.libc [revised] 58 59 Fix regressions introduced by SA-16:37.libc. 60 6120161206 p13 FreeBSD-SA-16:36.telnetd 62 FreeBSD-SA-16:37.libc 63 FreeBSD-SA-16:38.bhyve 64 FreeBSD-EN-16:19.tzcode 65 FreeBSD-EN-16:20.tzdata 66 67 Fix possible login(1) argument injection in telnetd(8). [SA-16:36] 68 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37] 69 Fix possible escape from bhyve(8) virtual machine. [SA-16:38] 70 Fix warnings about valid time zone abbreviations. [EN-16:19] 71 Update timezone database information. [EN-16:20] 72 7320161102 p12 FreeBSD-SA-16:33.openssh 74 FreeBSD-SA-16:35.openssl 75 76 Fix OpenSSH remote Denial of Service vulnerability. [SA-16:33] 77 78 Fix OpenSSL remote DoS vulnerability. [SA-16:35] 79 8020161025 p11 FreeBSD-SA-16:15.sysarch [revised] 81 FreeBSD-EN-16:17.vm 82 83 Fix incorrect argument validation in sysarch(2). [SA-16:15] 84 Fix virtual memory subsystem bugs. [EN-16:17] 85 8620161010 p10 FreeBSD-SA-16:29.bspatch 87 FreeBSD-SA-16:30.portsnap 88 FreeBSD-SA-16:31.libarchive 89 90 Fix bspatch heap overflow vulnerability. [SA-16:29] 91 92 Fix multiple portsnap vulnerabilities. [SA-16:30] 93 94 Fix multiple libarchive vulnerabilities. [SA-16:31] 95 9620160926 p9 FreeBSD-SA-16:26.openssl [revised] 97 98 Fix OpenSSL regression introduced in SA-16:26. 99 10020160923 p8 FreeBSD-SA-16:26.openssl 101 102 Fix multiple OpenSSL vulnerabilitites. 103 10420160811 p7 FreeBSD-EN-16:10.dhclient 105 FreeBSD-EN-16:11.vmbus 106 FreeBSD-EN-16:12.hv_storvsc 107 FreeBSD-EN-16:13.vmbus 108 FreeBSD-EN-16:14.hv_storvsc 109 FreeBSD-EN-16:15.vmbus 110 FreeBSD-EN-16:16.hv_storvsc 111 112 Fix handling of unknown options from a DHCP server. [EN-16:10] 113 Fix a panic in hv_vmbus(4). [EN-16:11] 114 Fix missing hotplugged disk in hv_storvsc(4). [EN-16:12] 115 Fix the timecounter emulation in hv_vmbus(4). [EN-16:13] 116 Fix callout(9) handling in hv_storvsc(4). [EN-16:14] 117 Fix memory allocation issues in hv_vmbus(4). [EN-16:15] 118 Fix SCSI command handling in hv_storvsc(4). [EN-16:16] 119 12020160725 p6 FreeBSD-SA-16:25.bspatch 121 FreeBSD-EN-16:09.freebsd-update 122 123 Fix bspatch heap overflow vulnerability. [SA-16:25] 124 125 Fix freebsd-update(8) support of FreeBSD 11.0 release 126 distribution. [EN-16:09] 127 12820160604 p5 FreeBSD-SA-16:24.ntp 129 130 Fix multiple vulnerabilities of ntp. 131 13220160531 p4 FreeBSD-SA-16:20.linux 133 FreeBSD-SA-16:21.43bsd 134 FreeBSD-SA-16:22.libarchive 135 136 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 137 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 138 Fix directory traversal in cpio(1). [SA-16:22] 139 140 14120160517 p3 FreeBSD-SA-16:18.atkbd 142 FreeBSD-SA-16:19.sendmsg 143 144 Fix buffer overflow in keyboard driver. [SA-16:18] 145 146 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 147 14820160504 p2 FreeBSD-SA-16:17.openssl 149 FreeBSD-EN-16:06.libc 150 FreeBSD-EN-16:07.ipi 151 FreeBSD-EN-16:08.zfs 152 153 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 154 155 Fix performance regression in libc hash(3). [EN-16:06] 156 157 Fix excessive latency in x86 IPI delivery. [EN-16:07] 158 159 Fix memory leak in ZFS. [EN-16:08] 160 16120160429 p1 FreeBSD-SA-16:16.ntp 162 163 Fix multiple vulnerabilities of ntp. 164 16520160329: 166 10.3-RELEASE. 167 16820160124: 169 The NONE and HPN patches has been removed from OpenSSH. They are 170 still available in the security/openssh-portable port. 171 17220151214: 173 r292223 changed the internal interface between the nfsd.ko and 174 nfscommon.ko modules. As such, they must both be upgraded to-gether. 175 __FreeBSD_version has been bumped because of this. 176 17720151113: 178 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 179 Kernel modules isp_2400_multi and isp_2500_multi were removed and 180 should be replaced with isp_2400 and isp_2500 modules respectively. 181 18220150806: 183 The menu.rc and loader.rc files will now be replaced during 184 upgrades. Please migrate local changes to menu.rc.local and 185 loader.rc.local instead. 186 18720151026: 188 NTP has been upgraded to 4.2.8p4. 189 19020151025: 191 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 192 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 193 and devel/kyua to version 0.20+ and adjust any calling code to work 194 with Kyuafile and kyua. 195 19620150823: 197 The polarity of Pulse Per Second (PPS) capture events with the 198 uart(4) driver has been corrected. Prior to this change the PPS 199 "assert" event corresponded to the trailing edge of a positive PPS 200 pulse and the "clear" event was the leading edge of the next pulse. 201 202 As the width of a PPS pulse in a typical GPS receiver is on the 203 order of 1 millisecond, most users will not notice any significant 204 difference with this change. 205 206 Anyone who has compensated for the historical polarity reversal by 207 configuring a negative offset equal to the pulse width will need to 208 remove that workaround. 209 21020150822: 211 From legacy ata(4) driver was removed support for SATA controllers 212 supported by more functional drivers ahci(4), siis(4) and mvs(4). 213 Kernel modules ataahci and ataadaptec were removed completely, 214 replaced by ahci and mvs modules respectively. 215 21620150813: 217 10.2-RELEASE. 218 21920150731: 220 As ZFS requires more kernel stack pages than is the default on some 221 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 222 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 223 224 Please consider using 'options KSTACK_PAGES=X' where X is greater 225 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 226 22720150703: 228 The default Unbound configuration now enables remote control 229 using a local socket. Users who have already enabled the 230 local_unbound service should regenerate their configuration 231 by running "service local_unbound setup" as root. 232 23320150624: 234 An additional fix for the issue described in the 20150614 sendmail 235 entry below has been been committed in revision 284786. 236 23720150615: 238 The fix for the issue described in the 20150614 sendmail entry 239 below has been been committed in revision 284485. The work 240 around described in that entry is no longer needed unless the 241 default setting is overridden by a confDH_PARAMETERS configuration 242 setting of '5' or pointing to a 512 bit DH parameter file. 243 24420150614: 245 The import of openssl to address the FreeBSD-SA-15:10.openssl 246 security advisory includes a change which rejects handshakes 247 with DH parameters below 768 bits. sendmail releases prior 248 to 8.15.2 (not yet released), defaulted to a 512 bit 249 DH parameter setting for client connections. To work around 250 this interoperability, sendmail can be configured to use a 251 2048 bit DH parameter by: 252 253 1. Edit /etc/mail/`hostname`.mc 254 2. If a setting for confDH_PARAMETERS does not exist or 255 exists and is set to a string beginning with '5', 256 replace it with '2'. 257 3. If a setting for confDH_PARAMETERS exists and is set to 258 a file path, create a new file with: 259 openssl dhparam -out /path/to/file 2048 260 4. Rebuild the .cf file: 261 cd /etc/mail/; make; make install 262 5. Restart sendmail: 263 cd /etc/mail/; make restart 264 265 A sendmail patch is coming, at which time this file will be 266 updated. 267 26820150601: 269 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 270 defined in symlink(7); previously symlinks were silently ignored. 271 27220150430: 273 The const qualifier has been removed from iconv(3) to comply with 274 POSIX. The ports tree is aware of this from r384038 onwards. 275 27620141215: 277 At svn r275807, The default linux compat kernel ABI has been adjusted 278 to 2.6.18 in support of the linux-c6 compat ports infrastructure 279 update. If you wish to continue using the linux-f10 compat ports, 280 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 281 encouraged to update their linux-compat packages to linux-c6 during 282 their next update cycle. 283 284 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 285 28620141205: 287 pjdfstest has been integrated into kyua as an opt-in test suite. 288 Please see share/doc/pjdfstest/README for a more details on how to 289 execute it. 290 29120141118: 292 10.1-RELEASE. 293 29420140904: 295 The ofwfb driver, used to provide a graphics console on PowerPC when 296 using vt(4), no longer allows mmap() of all of physical memory. This 297 will prevent Xorg on PowerPC with some ATI graphics cards from 298 initializing properly unless x11-servers/xorg-server is updated to 299 1.12.4_8 or newer. 300 30120140831: 302 The libatf-c and libatf-c++ major versions were downgraded to 0 and 303 1 respectively to match the upstream numbers. They were out of 304 sync because, when they were originally added to FreeBSD, the 305 upstream versions were not respected. These libraries are private 306 and not yet built by default, so renumbering them should be a 307 non-issue. However, unclean source trees will yield broken test 308 programs once the operator executes "make delete-old-libs" after a 309 "make installworld". 310 311 Additionally, the atf-sh binary was made private by moving it into 312 /usr/libexec/. Already-built shell test programs will keep the 313 path to the old binary so they will break after "make delete-old" 314 is run. 315 316 If you are using WITH_TESTS=yes (not the default), wipe the object 317 tree and rebuild from scratch to prevent spurious test failures. 318 This is only needed once: the misnumbered libraries and misplaced 319 binaries have been added to OptionalObsoleteFiles.inc so they will 320 be removed during a clean upgrade. 321 32220140814: 323 The ixgbe tunables now match their sysctl counterparts, for example: 324 hw.ixgbe.enable_aim => hw.ix.enable_aim 325 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 326 32720140801: 328 The NFSv4.1 server committed by r269398 changes the internal 329 function call interfaces used between the NFS and krpc modules. 330 As such, __FreeBSD_version was bumped. 331 33220140729: 333 The default unbound configuration has been modified to address 334 issues with reverse lookups on networks that use private 335 address ranges. If you use the local_unbound service, run 336 "service local_unbound setup" as root to regenerate your 337 configuration, then "service local_unbound reload" to load the 338 new configuration. 339 34020140717: 341 It is no longer necessary to include the dwarf version in your DEBUG 342 options in your kernel config file. The bug that required it to be 343 placed in the config file has bene fixed. DEBUG should now just 344 contain -g. The build system will automatically update things 345 to do the right thing. 346 34720140715: 348 Several ABI breaking changes were merged to CTL and new iSCSI code. 349 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 350 iscsictl need to be rebuilt to work with a new kernel. 351 35220140708: 353 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 354 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 355 which differs from the behaviour controlled by this knob.) 356 35720140608: 358 On i386 and amd64 systems, the onifconsole flag is now set by default 359 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 360 as a login TTY if it is set in the bootloader as an active kernel 361 console. No changes in behavior should result otherwise. To revert to 362 the previous behavior, set ttyu0 to "off" in /etc/ttys. 363 36420140512: 365 Clang and llvm have been upgraded to 3.4.1 release. 366 36720140321: 368 Clang and llvm have been upgraded to 3.4 release. 369 37020140306: 371 If a Makefile in a tests/ directory was auto-generating a Kyuafile 372 instead of providing an explicit one, this would prevent such 373 Makefile from providing its own Kyuafile in the future during 374 NO_CLEAN builds. This has been fixed in the Makefiles but manual 375 intervention is needed to clean an objdir if you use NO_CLEAN: 376 # find /usr/obj -name Kyuafile | xargs rm -f 377 37820140303: 379 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 380 capability mode support. Please note that enabling the feature in 381 kernel is still highly recommended. 382 38320140227: 384 OpenSSH is now built with sandbox support, and will use sandbox as 385 the default privilege separation method. This requires Capsicum 386 capability mode support in kernel. 387 38820140216: 389 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 390 been deprecated and will not be part of FreeBSD 11.0 and later 391 releases. If you use this driver, please consider switching to 392 the nfe(4) driver instead. 393 39420140120: 395 10.0-RELEASE. 396 39720131216: 398 The behavior of gss_pseudo_random() for the krb5 mechanism 399 has changed, for applications requesting a longer random string 400 than produced by the underlying enctype's pseudo-random() function. 401 In particular, the random string produced from a session key of 402 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 403 be different at the 17th octet and later, after this change. 404 The counter used in the PRF+ construction is now encoded as a 405 big-endian integer in accordance with RFC 4402. 406 __FreeBSD_version is bumped to 1000701. 407 40820131108: 409 The WITHOUT_ATF build knob has been removed and its functionality 410 has been subsumed into the more generic WITHOUT_TESTS. If you were 411 using the former to disable the build of the ATF libraries, you 412 should change your settings to use the latter. 413 41420131031: 415 The default version of mtree is nmtree which is obtained from 416 NetBSD. The output is generally the same, but may vary 417 slightly. If you found you need identical output adding 418 "-F freebsd9" to the command line should do the trick. For the 419 time being, the old mtree is available as fmtree. 420 42120131014: 422 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 423 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 424 1.1.4_8 and verify bsdyml not linked in, before running "make 425 delete-old-libs": 426 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 427 or 428 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 429 43020131010: 431 The rc.d/jail script has been updated to support jail(8) 432 configuration file. The "jail_<jname>_*" rc.conf(5) variables 433 for per-jail configuration are automatically converted to 434 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 435 This is transparently backward compatible. See below about some 436 incompatibilities and rc.conf(5) manual page for more details. 437 438 These variables are now deprecated in favor of jail(8) configuration 439 file. One can use "rc.d/jail config <jname>" command to generate 440 a jail(8) configuration file in /var/run/jail.<jname>.conf without 441 running the jail(8) utility. The default pathname of the 442 configuration file is /etc/jail.conf and can be specified by 443 using $jail_conf or $jail_<jname>_conf variables. 444 445 Please note that jail_devfs_ruleset accepts an integer at 446 this moment. Please consider to rewrite the ruleset name 447 with an integer. 448 44920130930: 450 BIND has been removed from the base system. If all you need 451 is a local resolver, simply enable and start the local_unbound 452 service instead. Otherwise, several versions of BIND are 453 available in the ports tree. The dns/bind99 port is one example. 454 455 With this change, nslookup(1) and dig(1) are no longer in the base 456 system. Users should instead use host(1) and drill(1) which are 457 in the base system. Alternatively, nslookup and dig can 458 be obtained by installing the dns/bind-tools port. 459 46020130916: 461 With the addition of unbound(8), a new unbound user is now 462 required during installworld. "mergemaster -p" can be used to 463 add the user prior to installworld, as documented in the handbook. 464 46520130911: 466 OpenSSH is now built with DNSSEC support, and will by default 467 silently trust signed SSHFP records. This can be controlled with 468 the VerifyHostKeyDNS client configuration setting. DNSSEC support 469 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 470 47120130906: 472 The GNU Compiler Collection and C++ standard library (libstdc++) 473 are no longer built by default on platforms where clang is the system 474 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 475 options in src.conf. 476 47720130905: 478 The PROCDESC kernel option is now part of the GENERIC kernel 479 configuration and is required for the rwhod(8) to work. 480 If you are using custom kernel configuration, you should include 481 'options PROCDESC'. 482 48320130905: 484 The API and ABI related to the Capsicum framework was modified 485 in backward incompatible way. The userland libraries and programs 486 have to be recompiled to work with the new kernel. This includes the 487 following libraries and programs, but the whole buildworld is 488 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 489 kdump, procstat, rwho, rwhod, uniq. 490 49120130903: 492 AES-NI intrinsic support has been added to gcc. The AES-NI module 493 has been updated to use this support. A new gcc is required to build 494 the aesni module on both i386 and amd64. 495 49620130821: 497 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 498 Thus "device padlock_rng" and "device rdrand_rng" should be 499 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 500 50120130813: 502 WITH_ICONV has been split into two feature sets. WITH_ICONV now 503 enables just the iconv* functionality and is now on by default. 504 WITH_LIBICONV_COMPAT enables the libiconv api and link time 505 compatability. Set WITHOUT_ICONV to build the old way. 506 If you have been using WITH_ICONV before, you will very likely 507 need to turn on WITH_LIBICONV_COMPAT. 508 50920130806: 510 INVARIANTS option now enables DEBUG for code with OpenSolaris and 511 Illumos origin, including ZFS. If you have INVARIANTS in your 512 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 513 explicitly. 514 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 515 locks if WITNESS option was set. Because that generated a lot of 516 witness(9) reports and all of them were believed to be false 517 positives, this is no longer done. New option OPENSOLARIS_WITNESS 518 can be used to achieve the previous behavior. 519 52020130806: 521 Timer values in IPv6 data structures now use time_uptime instead 522 of time_second. Although this is not a user-visible functional 523 change, userland utilities which directly use them---ndp(8), 524 rtadvd(8), and rtsold(8) in the base system---need to be updated 525 to r253970 or later. 526 52720130802: 528 find -delete can now delete the pathnames given as arguments, 529 instead of only files found below them or if the pathname did 530 not contain any slashes. Formerly, the following error message 531 would result: 532 533 find: -delete: <path>: relative path potentially not safe 534 535 Deleting the pathnames given as arguments can be prevented 536 without error messages using -mindepth 1 or by changing 537 directory and passing "." as argument to find. This works in the 538 old as well as the new version of find. 539 54020130726: 541 Behavior of devfs rules path matching has been changed. 542 Pattern is now always matched against fully qualified devfs 543 path and slash characters must be explicitly matched by 544 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 545 subdirectories must be reviewed. 546 54720130716: 548 The default ARM ABI has changed to the ARM EABI. The old ABI is 549 incompatible with the ARM EABI and all programs and modules will 550 need to be rebuilt to work with a new kernel. 551 552 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 553 554 NOTE: Support for the old ABI will be removed in the future and 555 users are advised to upgrade. 556 55720130709: 558 pkg_install has been disconnected from the build if you really need it 559 you should add WITH_PKGTOOLS in your src.conf(5). 560 56120130709: 562 Most of network statistics structures were changed to be able 563 keep 64-bits counters. Thus all tools, that work with networking 564 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 565 56620130618: 567 Fix a bug that allowed a tracing process (e.g. gdb) to write 568 to a memory-mapped file in the traced process's address space 569 even if neither the traced process nor the tracing process had 570 write access to that file. 571 57220130615: 573 CVS has been removed from the base system. An exact copy 574 of the code is available from the devel/cvs port. 575 57620130613: 577 Some people report the following error after the switch to bmake: 578 579 make: illegal option -- J 580 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 581 ... 582 *** [buildworld] Error code 2 583 584 this likely due to an old instance of make in 585 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 586 which src/Makefile will use that blindly, if it exists, so if 587 you see the above error: 588 589 rm -rf `make -V MAKEPATH` 590 591 should resolve it. 592 59320130516: 594 Use bmake by default. 595 Whereas before one could choose to build with bmake via 596 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 597 make. The goal is to remove these knobs for 10-RELEASE. 598 599 It is worth noting that bmake (like gmake) treats the command 600 line as the unit of failure, rather than statements within the 601 command line. Thus '(cd some/where && dosomething)' is safer 602 than 'cd some/where; dosomething'. The '()' allows consistent 603 behavior in parallel build. 604 60520130429: 606 Fix a bug that allows NFS clients to issue READDIR on files. 607 60820130426: 609 The WITHOUT_IDEA option has been removed because 610 the IDEA patent expired. 611 61220130426: 613 The sysctl which controls TRIM support under ZFS has been renamed 614 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 615 enabled by default. 616 61720130425: 618 The mergemaster command now uses the default MAKEOBJDIRPREFIX 619 rather than creating it's own in the temporary directory in 620 order allow access to bootstrapped versions of tools such as 621 install and mtree. When upgrading from version of FreeBSD where 622 the install command does not support -l, you will need to 623 install a new mergemaster command if mergemaster -p is required. 624 This can be accomplished with the command (cd src/usr.sbin/mergemaster 625 && make install). 626 62720130404: 628 Legacy ATA stack, disabled and replaced by new CAM-based one since 629 FreeBSD 9.0, completely removed from the sources. Kernel modules 630 atadisk and atapi*, user-level tools atacontrol and burncd are 631 removed. Kernel option `options ATA_CAM` is now permanently enabled 632 and removed. 633 63420130319: 635 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 636 and socketpair(2). Software, in particular Kerberos, may 637 automatically detect and use these during building. The resulting 638 binaries will not work on older kernels. 639 64020130308: 641 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 642 information, see the respective 20130304 entry). 643 64420130304: 645 Recent commits to callout(9) changed the size of struct callout, 646 so the KBI is probably heavily disturbed. Also, some functions 647 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 648 by macros. Every kernel module using it won't load, so rebuild 649 is requested. 650 651 The ctl device has been re-enabled in GENERIC for i386 and amd64, 652 but does not initialize by default (because of the new CTL_DISABLE 653 option) to save memory. To re-enable it, remove the CTL_DISABLE 654 option from the kernel config file or set kern.cam.ctl.disable=0 655 in /boot/loader.conf. 656 65720130301: 658 The ctl device has been disabled in GENERIC for i386 and amd64. 659 This was done due to the extra memory being allocated at system 660 initialisation time by the ctl driver which was only used if 661 a CAM target device was created. This makes a FreeBSD system 662 unusable on 128MB or less of RAM. 663 66420130208: 665 A new compression method (lz4) has been merged to -HEAD. Please 666 refer to zpool-features(7) for more information. 667 668 Please refer to the "ZFS notes" section of this file for information 669 on upgrading boot ZFS pools. 670 67120130129: 672 A BSD-licensed patch(1) variant has been added and is installed 673 as bsdpatch, being the GNU version the default patch. 674 To inverse the logic and use the BSD-licensed one as default, 675 while having the GNU version installed as gnupatch, rebuild 676 and install world with the WITH_BSD_PATCH knob set. 677 67820130121: 679 Due to the use of the new -l option to install(1) during build 680 and install, you must take care not to directly set the INSTALL 681 make variable in your /etc/make.conf, /etc/src.conf, or on the 682 command line. If you wish to use the -C flag for all installs 683 you may be able to add INSTALL+=-C to /etc/make.conf or 684 /etc/src.conf. 685 68620130118: 687 The install(1) option -M has changed meaning and now takes an 688 argument that is a file or path to append logs to. In the 689 unlikely event that -M was the last option on the command line 690 and the command line contained at least two files and a target 691 directory the first file will have logs appended to it. The -M 692 option served little practical purpose in the last decade so its 693 use is expected to be extremely rare. 694 69520121223: 696 After switching to Clang as the default compiler some users of ZFS 697 on i386 systems started to experience stack overflow kernel panics. 698 Please consider using 'options KSTACK_PAGES=4' in such configurations. 699 70020121222: 701 GEOM_LABEL now mangles label names read from file system metadata. 702 Mangling affect labels containing spaces, non-printable characters, 703 '%' or '"'. Device names in /etc/fstab and other places may need to 704 be updated. 705 70620121217: 707 By default, only the 10 most recent kernel dumps will be saved. To 708 restore the previous behaviour (no limit on the number of kernel dumps 709 stored in the dump directory) add the following line to /etc/rc.conf: 710 711 savecore_flags="" 712 71320121201: 714 With the addition of auditdistd(8), a new auditdistd user is now 715 required during installworld. "mergemaster -p" can be used to 716 add the user prior to installworld, as documented in the handbook. 717 71820121117: 719 The sin6_scope_id member variable in struct sockaddr_in6 is now 720 filled by the kernel before passing the structure to the userland via 721 sysctl or routing socket. This means the KAME-specific embedded scope 722 id in sin6_addr.s6_addr[2] is always cleared in userland application. 723 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 724 __FreeBSD_version is bumped to 1000025. 725 72620121105: 727 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 728 This means that the world and kernel will be compiled with clang 729 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 730 and /usr/bin/cpp. To disable this behavior and revert to building 731 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 732 of current may need to bootstrap WITHOUT_CLANG first if the clang 733 build fails (its compatibility window doesn't extend to the 9 stable 734 branch point). 735 73620121102: 737 The IPFIREWALL_FORWARD kernel option has been removed. Its 738 functionality now turned on by default. 739 74020121023: 741 The ZERO_COPY_SOCKET kernel option has been removed and 742 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 743 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 744 mechanism which is not safe and may result in kernel crashes. 745 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 746 driver supports disposeable external page sized mbuf storage. 747 Proper replacements for both zero-copy mechanisms are under 748 consideration and will eventually lead to complete removal 749 of the two kernel options. 750 75120121023: 752 The IPv4 network stack has been converted to network byte 753 order. The following modules need to be recompiled together 754 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 755 pf(4), ipfw(4), ng_ipfw(4), stf(4). 756 75720121022: 758 Support for non-MPSAFE filesystems was removed from VFS. The 759 VFS_VERSION was bumped, all filesystem modules shall be 760 recompiled. 761 76220121018: 763 All the non-MPSAFE filesystems have been disconnected from 764 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 765 portalfs, smbfs, xfs. 766 76720121016: 768 The interface cloning API and ABI has changed. The following 769 modules need to be recompiled together with kernel: 770 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 771 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 772 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 773 77420121015: 775 The sdhci driver was split in two parts: sdhci (generic SD Host 776 Controller logic) and sdhci_pci (actual hardware driver). 777 No kernel config modifications are required, but if you 778 load sdhc as a module you must switch to sdhci_pci instead. 779 78020121014: 781 Import the FUSE kernel and userland support into base system. 782 78320121013: 784 The GNU sort(1) program has been removed since the BSD-licensed 785 sort(1) has been the default for quite some time and no serious 786 problems have been reported. The corresponding WITH_GNU_SORT 787 knob has also gone. 788 78920121006: 790 The pfil(9) API/ABI for AF_INET family has been changed. Packet 791 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 792 with new kernel. 793 79420121001: 795 The net80211(4) ABI has been changed to allow for improved driver 796 PS-POLL and power-save support. All wireless drivers need to be 797 recompiled to work with the new kernel. 798 79920120913: 800 The random(4) support for the VIA hardware random number 801 generator (`PADLOCK') is no longer enabled unconditionally. 802 Add the padlock_rng device in the custom kernel config if 803 needed. The GENERIC kernels on i386 and amd64 do include the 804 device, so the change only affects the custom kernel 805 configurations. 806 80720120908: 808 The pf(4) packet filter ABI has been changed. pfctl(8) and 809 snmp_pf module need to be recompiled to work with new kernel. 810 81120120828: 812 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 813 to -HEAD. Pools that have empty_bpobj in active state can not be 814 imported read-write with ZFS implementations that do not support 815 this feature. For more information read the zpool-features(5) 816 manual page. 817 81820120727: 819 The sparc64 ZFS loader has been changed to no longer try to auto- 820 detect ZFS providers based on diskN aliases but now requires these 821 to be explicitly listed in the OFW boot-device environment variable. 822 82320120712: 824 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 825 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 826 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 827 82820120712: 829 The following sysctls and tunables have been renamed for consistency 830 with other variables: 831 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 832 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 833 83420120628: 835 The sort utility has been replaced with BSD sort. For now, GNU sort 836 is also available as "gnusort" or the default can be set back to 837 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 838 installed as "bsdsort". 839 84020120611: 841 A new version of ZFS (pool version 5000) has been merged to -HEAD. 842 Starting with this version the old system of ZFS pool versioning 843 is superseded by "feature flags". This concept enables forward 844 compatibility against certain future changes in functionality of ZFS 845 pools. The first read-only compatible "feature flag" for ZFS pools 846 is named "com.delphix:async_destroy". For more information 847 read the new zpool-features(5) manual page. 848 Please refer to the "ZFS notes" section of this file for information 849 on upgrading boot ZFS pools. 850 85120120417: 852 The malloc(3) implementation embedded in libc now uses sources imported 853 as contrib/jemalloc. The most disruptive API change is to 854 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 855 delete it prior to installworld, and optionally re-create it using the 856 new format after rebooting. See malloc.conf(5) for details 857 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 858 NAMESPACE section). 859 86020120328: 861 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 862 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 863 now spelled mips. This is to aid compatibility with third-party 864 software that expects this naming scheme in uname(3). Little-endian 865 settings are unchanged. If you are updating a big-endian mips64 machine 866 from before this change, you may need to set MACHINE_ARCH=mips64 in 867 your environment before the new build system will recognize your machine. 868 86920120306: 870 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 871 platforms. 872 87320120229: 874 Now unix domain sockets behave "as expected" on nullfs(5). Previously 875 nullfs(5) did not pass through all behaviours to the underlying layer, 876 as a result if we bound to a socket on the lower layer we could connect 877 only to the lower path; if we bound to the upper layer we could connect 878 only to the upper path. The new behavior is one can connect to both the 879 lower and the upper paths regardless what layer path one binds to. 880 88120120211: 882 The getifaddrs upgrade path broken with 20111215 has been restored. 883 If you have upgraded in between 20111215 and 20120209 you need to 884 recompile libc again with your kernel. You still need to recompile 885 world to be able to configure CARP but this restriction already 886 comes from 20111215. 887 88820120114: 889 The set_rcvar() function has been removed from /etc/rc.subr. All 890 base and ports rc.d scripts have been updated, so if you have a 891 port installed with a script in /usr/local/etc/rc.d you can either 892 hand-edit the rcvar= line, or reinstall the port. 893 894 An easy way to handle the mass-update of /etc/rc.d: 895 rm /etc/rc.d/* && mergemaster -i 896 89720120109: 898 panic(9) now stops other CPUs in the SMP systems, disables interrupts 899 on the current CPU and prevents other threads from running. 900 This behavior can be reverted using the kern.stop_scheduler_on_panic 901 tunable/sysctl. 902 The new behavior can be incompatible with kern.sync_on_panic. 903 90420111215: 905 The carp(4) facility has been changed significantly. Configuration 906 of the CARP protocol via ifconfig(8) has changed, as well as format 907 of CARP events submitted to devd(8) has changed. See manual pages 908 for more information. The arpbalance feature of carp(4) is currently 909 not supported anymore. 910 911 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 912 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 913 need to be recompiled. 914 91520111122: 916 The acpi_wmi(4) status device /dev/wmistat has been renamed to 917 /dev/wmistat0. 918 91920111108: 920 The option VFS_ALLOW_NONMPSAFE option has been added in order to 921 explicitely support non-MPSAFE filesystems. 922 It is on by default for all supported platform at this present 923 time. 924 92520111101: 926 The broken amd(4) driver has been replaced with esp(4) in the amd64, 927 i386 and pc98 GENERIC kernel configuration files. 928 92920110930: 930 sysinstall has been removed 931 93220110923: 933 The stable/9 branch created in subversion. This corresponds to the 934 RELENG_9 branch in CVS. 935 93620110913: 937 This commit modifies vfs_register() so that it uses a hash 938 calculation to set vfc_typenum, which is enabled by default. 939 The first time a system is booted after this change, the 940 vfc_typenum values will change for all file systems. The 941 main effect of this is a change to the NFS server file handles 942 for file systems that use vfc_typenum in their fsid, such as ZFS. 943 It will, however, prevent vfc_typenum from changing when file 944 systems are loaded in a different order for subsequent reboots. 945 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 946 until you are ready to remount all NFS clients after a reboot. 947 94820110828: 949 Bump the shared library version numbers for libraries that 950 do not use symbol versioning, have changed the ABI compared 951 to stable/8 and which shared library version was not bumped. 952 Done as part of 9.0-RELEASE cycle. 953 95420110815: 955 During the merge of Capsicum features, the fget(9) KPI was modified. 956 This may require the rebuilding of out-of-tree device drivers -- 957 issues have been reported specifically with the nVidia device driver. 958 __FreeBSD_version is bumped to 900041. 959 960 Also, there is a period between 20110811 and 20110814 where the 961 special devices /dev/{stdin,stdout,stderr} did not work correctly. 962 Building world from a kernel during that window may not work. 963 96420110628: 965 The packet filter (pf) code has been updated to OpenBSD 4.5. 966 You need to update userland tools to be in sync with kernel. 967 This update breaks backward compatibility with earlier pfsync(4) 968 versions. Care must be taken when updating redundant firewall setups. 969 97020110608: 971 The following sysctls and tunables are retired on x86 platforms: 972 machdep.hlt_cpus 973 machdep.hlt_logical_cpus 974 The following sysctl is retired: 975 machdep.hyperthreading_allowed 976 The sysctls were supposed to provide a way to dynamically offline and 977 online selected CPUs on x86 platforms, but the implementation has not 978 been reliable especially with SCHED_ULE scheduler. 979 machdep.hyperthreading_allowed tunable is still available to ignore 980 hyperthreading CPUs at OS level. 981 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 982 where X is an APIC ID of a CPU. Be advised, though, that disabling 983 CPUs in non-uniform fashion will result in non-uniform topology and 984 may lead to sub-optimal system performance with SCHED_ULE, which is 985 a default scheduler. 986 98720110607: 988 cpumask_t type is retired and cpuset_t is used in order to describe 989 a mask of CPUs. 990 99120110531: 992 Changes to ifconfig(8) for dynamic address family detection mandate 993 that you are running a kernel of 20110525 or later. Make sure to 994 follow the update procedure to boot a new kernel before installing 995 world. 996 99720110513: 998 Support for sun4v architecture is officially dropped 999 100020110503: 1001 Several KPI breaking changes have been committed to the mii(4) layer, 1002 the PHY drivers and consequently some Ethernet drivers using mii(4). 1003 This means that miibus.ko and the modules of the affected Ethernet 1004 drivers need to be recompiled. 1005 1006 Note to kernel developers: Given that the OUI bit reversion problem 1007 was fixed as part of these changes all mii(4) commits related to OUIs, 1008 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 1009 handling, no longer can be merged verbatim to stable/8 and previous 1010 branches. 1011 101220110430: 1013 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1014 into their kernel configurations along with 'device pci'. 1015 101620110427: 1017 The default NFS client is now the new NFS client, so fstype "newnfs" 1018 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1019 Although mounts via fstype "nfs" will usually work without userland 1020 changes, it is recommended that the mount(8) and mount_nfs(8) 1021 commands be rebuilt from sources and that a link to mount_nfs called 1022 mount_oldnfs be created. The new client is compiled into the 1023 kernel with "options NFSCL" and this is needed for diskless root 1024 file systems. The GENERIC kernel configs have been changed to use 1025 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1026 To use the regular/old client, you can "mount -t oldnfs ...". For 1027 a diskless root file system, you must also include a line like: 1028 1029 vfs.root.mountfrom="oldnfs:" 1030 1031 in the boot/loader.conf on the root fs on the NFS server to make 1032 a diskless root fs use the old client. 1033 103420110424: 1035 The GENERIC kernels for all architectures now default to the new 1036 CAM-based ATA stack. It means that all legacy ATA drivers were 1037 removed and replaced by respective CAM drivers. If you are using 1038 ATA device names in /etc/fstab or other places, make sure to update 1039 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1040 where 'Y's are the sequential numbers starting from zero for each type 1041 in order of detection, unless configured otherwise with tunables, 1042 see cam(4)). There will be symbolic links created in /dev/ to map 1043 old adX devices to the respective adaY. They should provide basic 1044 compatibility for file systems mounting in most cases, but they do 1045 not support old user-level APIs and do not have respective providers 1046 in GEOM. Consider using updated management tools with new device names. 1047 1048 It is possible to load devices ahci, ata, siis and mvs as modules, 1049 but option ATA_CAM should remain in kernel configuration to make ata 1050 module work as CAM driver supporting legacy ATA controllers. Device ata 1051 still can be used in modular fashion (atacore + ...). Modules atadisk 1052 and atapi* are not used and won't affect operation in ATA_CAM mode. 1053 Note that to use CAM-based ATA kernel should include CAM devices 1054 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1055 them are parts of the cam module. 1056 1057 ataraid(4) functionality is now supported by the RAID GEOM class. 1058 To use it you can load geom_raid kernel module and use graid(8) tool 1059 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1060 1061 No kernel config options or code have been removed, so if a problem 1062 arises, please report it and optionally revert to the old ATA stack. 1063 In order to do it you can remove from the kernel config: 1064 options ATA_CAM 1065 device ahci 1066 device mvs 1067 device siis 1068 , and instead add back: 1069 device atadisk # ATA disk drives 1070 device ataraid # ATA RAID drives 1071 device atapicd # ATAPI CDROM drives 1072 device atapifd # ATAPI floppy drives 1073 device atapist # ATAPI tape drives 1074 107520110423: 1076 The default NFS server has been changed to the new server, which 1077 was referred to as the experimental server. If you need to switch 1078 back to the old NFS server, you must now put the "-o" option on 1079 both the mountd and nfsd commands. This can be done using the 1080 mountd_flags and nfs_server_flags rc.conf variables until an 1081 update to the rc scripts is committed, which is coming soon. 1082 108320110418: 1084 The GNU Objective-C runtime library (libobjc), and other Objective-C 1085 related components have been removed from the base system. If you 1086 require an Objective-C library, please use one of the available ports. 1087 108820110331: 1089 ath(4) has been split into bus- and device- modules. if_ath contains 1090 the HAL, the TX rate control and the network device code. if_ath_pci 1091 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1092 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1093 in order to use ath on everything else. 1094 1095 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1096 need to load if_ath and if_ath_pci for ath(4) operation. 1097 109820110314: 1099 As part of the replacement of sysinstall, the process of building 1100 release media has changed significantly. For details, please re-read 1101 release(7), which has been updated to reflect the new build process. 1102 110320110218: 1104 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1105 is the last available version under GPLv2. It brings a number of new 1106 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1107 4.1 and SSE 4.2), better support for powerpc64, a number of new 1108 directives, and lots of other small improvements. See the ChangeLog 1109 file in contrib/binutils for the full details. 1110 111120110218: 1112 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1113 compliant, and will now use half of hash for authentication. 1114 This will break interoperability with all stacks (including all 1115 actual FreeBSD versions) who implement 1116 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1117 authentication). 1118 The only workaround with such peers is to use another HMAC 1119 algorithm for IPsec ("phase 2") authentication. 1120 112120110207: 1122 Remove the uio_yield prototype and symbol. This function has 1123 been misnamed since it was introduced and should not be 1124 globally exposed with this name. The equivalent functionality 1125 is now available using kern_yield(curthread->td_user_pri). 1126 The function remains undocumented. 1127 112820110112: 1129 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1130 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1131 for scalar sysctls is defined but disabled. Code that needs 1132 UQUAD to pass the type checking that must compile on older 1133 systems where the define is not present can check against 1134 __FreeBSD_version >= 900030. 1135 1136 The system dialog(1) has been replaced with a new version previously 1137 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1138 with the previous version, but the libdialog associated with it has 1139 a largely incompatible API. As such, the original version of libdialog 1140 will be kept temporarily as libodialog, until its base system consumers 1141 are replaced or updated. Bump __FreeBSD_version to 900030. 1142 114320110103: 1144 If you are trying to run make universe on a -stable system, and you get 1145 the following warning: 1146 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1147 unknown. config(8) likely too old." 1148 or something similar to it, then you must upgrade your -stable system 1149 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1150 stable/8) or build the config from the latest stable/8 branch and 1151 install it on your system. 1152 1153 Prior to this date, building a current universe on 8-stable system from 1154 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1155 error in the first kernel build phase. A new config on those old 1156 systems will fix that problem for older versions of -current. 1157 115820101228: 1159 The TCP stack has been modified to allow Khelp modules to interact with 1160 it via helper hook points and store per-connection data in the TCP 1161 control block. Bump __FreeBSD_version to 900029. User space tools that 1162 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1163 be recompiled. 1164 116520101114: 1166 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1167 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1168 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1169 to take advantage of it instead of using custom implementations. This 1170 means that these drivers now no longer unconditionally advertise 1171 support for flow control but only do so if flow control is a selected 1172 media option. This was implemented in the generic support that way in 1173 order to allow flow control to be switched on and off via ifconfig(8) 1174 with the PHY specific default to typically off in order to protect 1175 from unwanted effects. Consequently, if you used flow control with 1176 one of the above mentioned drivers you now need to explicitly enable 1177 it, for example via: 1178 ifconfig bge0 media auto mediaopt flowcontrol 1179 1180 Along with the above mentioned changes generic support for setting 1181 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1182 e1000phy(4) as well as ip1000phy(4) have been converted to take 1183 advantage of it. This means that these drivers now no longer take the 1184 link0 parameter for selecting master mode but the master media option 1185 has to be used instead, for example like in the following: 1186 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1187 1188 Selection of master mode now is also available with all other PHY 1189 drivers supporting 1000baseT. 1190 119120101111: 1192 The TCP stack has received a significant update to add support for 1193 modularised congestion control and generally improve the clarity of 1194 congestion control decisions. Bump __FreeBSD_version to 900025. User 1195 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1196 sockstat) need to be recompiled. 1197 119820101002: 1199 The man(1) utility has been replaced by a new version that no longer 1200 uses /etc/manpath.config. Please consult man.conf(5) for how to 1201 migrate local entries to the new format. 1202 120320100928: 1204 The copyright strings printed by login(1) and sshd(8) at the time of a 1205 new connection have been removed to follow other operating systems and 1206 upstream sshd. 1207 120820100915: 1209 A workaround for a fixed ld bug has been removed in kernel code, 1210 so make sure that your system ld is built from sources after 1211 revision 210245 from 2010-07-19 (r211583 if building head kernel 1212 on stable/8, r211584 for stable/7; both from 2010-08-21). 1213 A symptom of incorrect ld version is different addresses for 1214 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1215 121620100913: 1217 The $ipv6_prefer variable in rc.conf(5) has been split into 1218 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1219 1220 The $ip6addrctl_policy is a variable to choose a pre-defined 1221 address selection policy set by ip6addrctl(8). A value 1222 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1223 default is "AUTO". 1224 1225 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1226 flag (see an entry of 20090926) is set on an interface with no 1227 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1228 security reason. If you want IPv6 link-local address on all 1229 interfaces by default, set this to "YES". 1230 1231 The old ipv6_prefer="YES" is equivalent to 1232 ipv6_activate_all_interfaces="YES" and 1233 ip6addrctl_policy="ipv6_prefer". 1234 123520100913: 1236 DTrace has grown support for userland tracing. Due to this, DTrace is 1237 now i386 and amd64 only. 1238 dtruss(1) is now installed by default on those systems and a new 1239 kernel module is needed for userland tracing: fasttrap. 1240 No changes to your kernel config file are necessary to enable 1241 userland tracing, but you might consider adding 'STRIP=' and 1242 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1243 to have informative userland stack traces in DTrace (ustack). 1244 124520100725: 1246 The acpi_aiboost(4) driver has been removed in favor of the new 1247 aibs(4) driver. You should update your kernel configuration file. 1248 124920100722: 1250 BSD grep has been imported to the base system and it is built by 1251 default. It is completely BSD licensed, highly GNU-compatible, uses 1252 less memory than its GNU counterpart and has a small codebase. 1253 However, it is slower than its GNU counterpart, which is mostly 1254 noticeable for larger searches, for smaller ones it is measurable 1255 but not significant. The reason is complex, the most important factor 1256 is that we lack a modern and efficient regex library and GNU 1257 overcomes this by optimizing the searches internally. Future work 1258 on improving the regex performance is planned, for the meantime, 1259 users that need better performance, can build GNU grep instead by 1260 setting the WITH_GNU_GREP knob. 1261 126220100713: 1263 Due to the import of powerpc64 support, all existing powerpc kernel 1264 configuration files must be updated with a machine directive like this: 1265 machine powerpc powerpc 1266 1267 In addition, an updated config(8) is required to build powerpc kernels 1268 after this change. 1269 127020100713: 1271 A new version of ZFS (version 15) has been merged to -HEAD. 1272 This version uses a python library for the following subcommands: 1273 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1274 For full functionality of these commands the following port must 1275 be installed: sysutils/py-zfs 1276 127720100429: 1278 'vm_page's are now hashed by physical address to an array of mutexes. 1279 Currently this is only used to serialize access to hold_count. Over 1280 time the page queue mutex will be peeled away. This changes the size 1281 of pmap on every architecture. And requires all callers of vm_page_hold 1282 and vm_page_unhold to be updated. 1283 128420100402: 1285 WITH_CTF can now be specified in src.conf (not recommended, there 1286 are some problems with static executables), make.conf (would also 1287 affect ports which do not use GNU make and do not override the 1288 compile targets) or in the kernel config (via "makeoptions 1289 WITH_CTF=yes"). 1290 When WITH_CTF was specified there before this was silently ignored, 1291 so make sure that WITH_CTF is not used in places which could lead 1292 to unwanted behavior. 1293 129420100311: 1295 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1296 to allow 32-bit compatibility on non-x86 platforms. All kernel 1297 configurations on amd64 and ia64 platforms using these options must 1298 be modified accordingly. 1299 130020100113: 1301 The utmp user accounting database has been replaced with utmpx, 1302 the user accounting interface standardized by POSIX. 1303 Unfortunately the semantics of utmp and utmpx don't match, 1304 making it practically impossible to support both interfaces. 1305 The user accounting database is used by tools like finger(1), 1306 last(1), talk(1), w(1) and ac(8). 1307 1308 All applications in the base system use utmpx. This means only 1309 local binaries (e.g. from the ports tree) may still use these 1310 utmp database files. These applications must be rebuilt to make 1311 use of utmpx. 1312 1313 After the system has been upgraded, it is safe to remove the old 1314 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1315 assuming their contents is of no importance anymore. Old wtmp 1316 databases can only be used by last(1) and ac(8) after they have 1317 been converted to the new format using wtmpcvt(1). 1318 131920100108: 1320 Introduce the kernel thread "deadlock resolver" (which can be enabled 1321 via the DEADLKRES option, see NOTES for more details) and the 1322 sleepq_type() function for sleepqueues. 1323 132420091202: 1325 The rc.firewall and rc.firewall6 were unified, and 1326 rc.firewall6 and rc.d/ip6fw were removed. 1327 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1328 variables are obsoleted. Instead, the following new rc 1329 variables are added to rc.d/ipfw: 1330 1331 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1332 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1333 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1334 1335 The meanings correspond to the relevant IPv4 variables. 1336 133720091125: 1338 8.0-RELEASE. 1339 134020091113: 1341 The default terminal emulation for syscons(4) has been changed 1342 from cons25 to xterm on all platforms except pc98. This means 1343 that the /etc/ttys file needs to be updated to ensure correct 1344 operation of applications on the console. 1345 1346 The terminal emulation style can be toggled per window by using 1347 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1348 options can be used to change the compile-time default back to 1349 cons25. 1350 1351 To prevent graphical artifacts, make sure the TERM environment 1352 variable is set to match the terminal emulation that is being 1353 performed by syscons(4). 1354 135520091109: 1356 The layout of the structure ieee80211req_scan_result has changed. 1357 Applications that require wireless scan results (e.g. ifconfig(8)) 1358 from net80211 need to be recompiled. 1359 1360 Applications such as wpa_supplicant(8) may require a full world 1361 build without using NO_CLEAN in order to get synchronized with the 1362 new structure. 1363 136420091025: 1365 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1366 There's one kernel module for each firmware. Adding "device iwnfw" 1367 to the kernel configuration file means including all three firmware 1368 images inside the kernel. If you want to include just the one for 1369 your wireless card, use the devices iwn4965fw, iwn5000fw or 1370 iwn5150fw. 1371 137220090926: 1373 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1374 into rc.d/netif. The changes are the following: 1375 1376 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1377 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1378 Note that both variables need the "inet6" keyword at the head. 1379 1380 Do not set $ipv6_network_interfaces manually if you do not 1381 understand what you are doing. It is not needed in most cases. 1382 1383 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1384 they are obsolete. 1385 1386 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1387 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1388 1389 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1390 all configured interfaces have "inet6 accept_rtadv" in the 1391 $ifconfig_IF_ipv6. These are for backward compatibility. 1392 1393 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1394 functionality of interfaces with no corresponding 1395 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1396 and the default address selection policy of ip6addrctl(8) 1397 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1398 Note that if you want to configure IPv6 functionality on the 1399 disabled interfaces after boot, first you need to clear the flag by 1400 using ifconfig(8) like: 1401 1402 ifconfig em0 inet6 -ifdisabled 1403 1404 If YES, the default address selection policy is set as 1405 IPv6-preferred. 1406 1407 The default value of $ipv6_prefer is NO. 1408 1409 4. If your system need to receive Router Advertisement messages, 1410 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1411 scripts automatically invoke rtsol(8) when the interface becomes 1412 UP. The Router Advertisement messages are used for SLAAC 1413 (State-Less Address AutoConfiguration). 1414 141520090922: 1416 802.11s D3.03 support was committed. This is incompatible with the 1417 previous code, which was based on D3.0. 1418 141920090912: 1420 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1421 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1422 control whether accepting Router Advertisement messages or not. 1423 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1424 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1425 The ifconfig(8) utility now supports these flags. 1426 142720090910: 1428 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1429 mount(8) and -a option for df(1) to see them. 1430 143120090825: 1432 The old tunable hw.bus.devctl_disable has been superseded by 1433 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1434 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1435 is 1000. 1436 143720090813: 1438 Remove the option STOP_NMI. The default action is now to use NMI only 1439 for KDB via the newly introduced function stop_cpus_hard() and 1440 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1441 144220090803: 1443 The stable/8 branch created in subversion. This corresponds to the 1444 RELENG_8 branch in CVS. 1445 144620090719: 1447 Bump the shared library version numbers for all libraries that do not 1448 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1449 __FreeBSD_version to 800105. 1450 145120090714: 1452 Due to changes in the implementation of virtual network stack support, 1453 all network-related kernel modules must be recompiled. As this change 1454 breaks the ABI, bump __FreeBSD_version to 800104. 1455 145620090713: 1457 The TOE interface to the TCP syncache has been modified to remove 1458 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1459 The cxgb driver is the only TOE consumer affected by this change, and 1460 needs to be recompiled along with the kernel. As this change breaks 1461 the ABI, bump __FreeBSD_version to 800103. 1462 146320090712: 1464 Padding has been added to struct tcpcb, sackhint and tcpstat in 1465 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1466 maintaining the ABI. However, this change breaks the ABI, so bump 1467 __FreeBSD_version to 800102. User space tools that rely on the size of 1468 any of these structs (e.g. sockstat) need to be recompiled. 1469 147020090630: 1471 The NFS_LEGACYRPC option has been removed along with the old kernel 1472 RPC implementation that this option selected. Kernel configurations 1473 may need to be adjusted. 1474 147520090629: 1476 The network interface device nodes at /dev/net/<interface> have been 1477 removed. All ioctl operations can be performed the normal way using 1478 routing sockets. The kqueue functionality can generally be replaced 1479 with routing sockets. 1480 148120090628: 1482 The documentation from the FreeBSD Documentation Project (Handbook, 1483 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1484 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1485 148620090624: 1487 The ABI of various structures related to the SYSV IPC API have been 1488 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1489 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1490 800100. 1491 149220090622: 1493 Layout of struct vnet has changed as routing related variables were 1494 moved to their own Vimage module. Modules need to be recompiled. Bump 1495 __FreeBSD_version to 800099. 1496 149720090619: 1498 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1499 respectively. As long as no more than 16 groups per process are used, 1500 no changes should be visible. When more than 16 groups are used, old 1501 binaries may fail if they call getgroups() or getgrouplist() with 1502 statically sized storage. Recompiling will work around this, but 1503 applications should be modified to use dynamically allocated storage 1504 for group arrays as POSIX.1-2008 does not cap an implementation's 1505 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1506 1507 NFS and portalfs mounts may also be affected as the list of groups is 1508 truncated to 16. Users of NFS who use more than 16 groups, should 1509 take care that negative group permissions are not used on the exported 1510 file systems as they will not be reliable unless a GSSAPI based 1511 authentication method is used. 1512 151320090616: 1514 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1515 option compiles in the support for adaptive spinning for lockmgrs 1516 which want to enable it. The lockinit() function now accepts the flag 1517 LK_ADAPTIVE in order to make the lock object subject to adaptive 1518 spinning when both held in write and read mode. 1519 152020090613: 1521 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1522 changed. User applications that use this ioctl need to be rebuilt. 1523 152420090611: 1525 The layout of struct thread has changed. Kernel and modules need to 1526 be rebuilt. 1527 152820090608: 1529 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1530 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1531 153220090602: 1533 window(1) has been removed from the base system. It can now be 1534 installed from ports. The port is called misc/window. 1535 153620090601: 1537 The way we are storing and accessing `routing table' entries has 1538 changed. Programs reading the FIB, like netstat, need to be 1539 re-compiled. 1540 154120090601: 1542 A new netisr implementation has been added for FreeBSD 8. Network 1543 file system modules, such as igmp, ipdivert, and others, should be 1544 rebuilt. 1545 Bump __FreeBSD_version to 800096. 1546 154720090530: 1548 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1549 more valid. 1550 155120090530: 1552 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1553 Bump __FreeBSD_version to 800094. 1554 155520090529: 1556 Add mnt_xflag field to 'struct mount'. File system modules need to be 1557 rebuilt. 1558 Bump __FreeBSD_version to 800093. 1559 156020090528: 1561 The compiling option ADAPTIVE_SX has been retired while it has been 1562 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1563 The KPI for sx_init_flags() changes as accepting flags: 1564 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1565 been introduced in order to handle the reversed logic. 1566 Bump __FreeBSD_version to 800092. 1567 156820090527: 1569 Add support for hierarchical jails. Remove global securelevel. 1570 Bump __FreeBSD_version to 800091. 1571 157220090523: 1573 The layout of struct vnet_net has changed, therefore modules 1574 need to be rebuilt. 1575 Bump __FreeBSD_version to 800090. 1576 157720090523: 1578 The newly imported zic(8) produces a new format in the output. Please 1579 run tzsetup(8) to install the newly created data to /etc/localtime. 1580 158120090520: 1582 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1583 hw.usb.* and is now consistent again with previous releases. 1584 158520090520: 1586 802.11 monitor mode support was revised and driver api's were changed. 1587 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1588 of DLT_IEEE802_11. No user-visible data structures were changed but 1589 applications that use DLT_IEEE802_11 may require changes. 1590 Bump __FreeBSD_version to 800088. 1591 159220090430: 1593 The layout of the following structs has changed: sysctl_oid, 1594 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1595 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1596 panics may be experienced. World rebuild is required for 1597 correctly checking networking state from userland. 1598 Bump __FreeBSD_version to 800085. 1599 160020090429: 1601 MLDv2 and Source-Specific Multicast (SSM) have been merged 1602 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1603 The implementation of SSM within FreeBSD's IPv6 stack closely 1604 follows the IPv4 implementation. 1605 1606 For kernel developers: 1607 1608 * The most important changes are that the ip6_output() and 1609 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1610 and this lock has been downgraded to a non-recursive mutex. 1611 1612 * As with the changes to the IPv4 stack to support SSM, filtering 1613 of inbound multicast traffic must now be performed by transport 1614 protocols within the IPv6 stack. This does not apply to TCP and 1615 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1616 1617 * The KPIs used by IPv6 multicast are similar to those used by 1618 the IPv4 stack, with the following differences: 1619 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1620 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1621 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1622 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1623 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1624 for MLDv1 have an additional 'timer' argument which is used to 1625 jitter the initial membership report for the solicited-node 1626 multicast membership on-link. 1627 * This is not strictly needed for MLDv2, which already jitters 1628 its report transmissions. However, the 'timer' argument is 1629 preserved in case MLDv1 is active on the interface. 1630 1631 * The KAME linked-list based IPv6 membership implementation has 1632 been refactored to use a vector similar to that used by the IPv4 1633 stack. 1634 Code which maintains a list of its own multicast memberships 1635 internally, e.g. carp, has been updated to reflect the new 1636 semantics. 1637 1638 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1639 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1640 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1641 implementation constraint which needs to be addressed in HEAD. 1642 1643 For application developers: 1644 1645 * The changes are broadly similar to those made for the IPv4 1646 stack. 1647 1648 * The use of IPv4 and IPv6 multicast socket options on the same 1649 socket, using mapped addresses, HAS NOT been tested or supported. 1650 1651 * There are a number of issues with the implementation of various 1652 IPv6 multicast APIs which need to be resolved in the API surface 1653 before the implementation is fully compatible with KAME userland 1654 use, and these are mostly to do with interface index treatment. 1655 1656 * The literature available discusses the use of either the delta / ASM 1657 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1658 using setsourcefilter(3)/getsourcefilter(3). For more information 1659 please refer to RFC 3768, 'Socket Interface Extensions for 1660 Multicast Source Filters'. 1661 1662 * Applications which use the published RFC 3678 APIs should be fine. 1663 1664 For systems administrators: 1665 1666 * The mtest(8) utility has been refactored to support IPv6, in 1667 addition to IPv4. Interface addresses are no longer accepted 1668 as arguments, their names must be used instead. The utility 1669 will map the interface name to its first IPv4 address as 1670 returned by getifaddrs(3). 1671 1672 * The ifmcstat(8) utility has also been updated to print the MLDv2 1673 endpoint state and source filter lists via sysctl(3). 1674 1675 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1676 loopback of IPv6 multicast datagrams by default; it defaults to 1 1677 to preserve the existing behaviour. Disabling multicast loopback is 1678 recommended for optimal system performance. 1679 1680 * The IPv6 MROUTING code has been changed to examine this sysctl 1681 instead of attempting to perform a group lookup before looping 1682 back forwarded datagrams. 1683 1684 Bump __FreeBSD_version to 800084. 1685 168620090422: 1687 Implement low-level Bluetooth HCI API. 1688 Bump __FreeBSD_version to 800083. 1689 169020090419: 1691 The layout of struct malloc_type, used by modules to register new 1692 memory allocation types, has changed. Most modules will need to 1693 be rebuilt or panics may be experienced. 1694 Bump __FreeBSD_version to 800081. 1695 169620090415: 1697 Anticipate overflowing inp_flags - add inp_flags2. 1698 This changes most offsets in inpcb, so checking v4 connection 1699 state will require a world rebuild. 1700 Bump __FreeBSD_version to 800080. 1701 170220090415: 1703 Add an llentry to struct route and struct route_in6. Modules 1704 embedding a struct route will need to be recompiled. 1705 Bump __FreeBSD_version to 800079. 1706 170720090414: 1708 The size of rt_metrics_lite and by extension rtentry has changed. 1709 Networking administration apps will need to be recompiled. 1710 The route command now supports show as an alias for get, weighting 1711 of routes, sticky and nostick flags to alter the behavior of stateful 1712 load balancing. 1713 Bump __FreeBSD_version to 800078. 1714 171520090408: 1716 Do not use Giant for kbdmux(4) locking. This is wrong and 1717 apparently causing more problems than it solves. This will 1718 re-open the issue where interrupt handlers may race with 1719 kbdmux(4) in polling mode. Typical symptoms include (but 1720 not limited to) duplicated and/or missing characters when 1721 low level console functions (such as gets) are used while 1722 interrupts are enabled (for example geli password prompt, 1723 mountroot prompt etc.). Disabling kbdmux(4) may help. 1724 172520090407: 1726 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1727 kernel modules referencing any of the above need to be recompiled. 1728 Bump __FreeBSD_version to 800075. 1729 173020090320: 1731 GEOM_PART has become the default partition slicer for storage devices, 1732 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1733 introduces some changes: 1734 1735 MSDOS/EBR: the devices created from MSDOS extended partition entries 1736 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1737 to devices with offset-based names. fstabs may need to be modified. 1738 1739 BSD: the "geometry does not match label" warning is harmless in most 1740 cases but it points to problems in file system misalignment with 1741 disk geometry. The "c" partition is now implicit, covers the whole 1742 top-level drive and cannot be (mis)used by users. 1743 1744 General: Kernel dumps are now not allowed to be written to devices 1745 whose partition types indicate they are meant to be used for file 1746 systems (or, in case of MSDOS partitions, as something else than 1747 the "386BSD" type). 1748 1749 Most of these changes date approximately from 200812. 1750 175120090319: 1752 The uscanner(4) driver has been removed from the kernel. This follows 1753 Linux removing theirs in 2.6 and making libusb the default interface 1754 (supported by sane). 1755 175620090319: 1757 The multicast forwarding code has been cleaned up. netstat(1) 1758 only relies on KVM now for printing bandwidth upcall meters. 1759 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1760 ip6_mroute_mod respectively. The config(5) options for statically 1761 compiling this code remain the same, i.e. 'options MROUTING'. 1762 176320090315: 1764 Support for the IFF_NEEDSGIANT network interface flag has been 1765 removed, which means that non-MPSAFE network device drivers are no 1766 longer supported. In particular, if_ar, if_sr, and network device 1767 drivers from the old (legacy) USB stack can no longer be built or 1768 used. 1769 177020090313: 1771 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1772 a bunch of new language catalog files have also been added. 1773 This means that some common libc messages are now localized and 1774 they depend on the LC_MESSAGES environmental variable. 1775 177620090313: 1777 The k8temp(4) driver has been renamed to amdtemp(4) since 1778 support for Family 10 and Family 11 CPU families was added. 1779 178020090309: 1781 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1782 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1783 1784 For kernel developers, the most important changes are that the 1785 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1786 and this lock has been downgraded to a non-recursive mutex. 1787 1788 Transport protocols (UDP, Raw IP) are now responsible for filtering 1789 inbound multicast traffic according to group membership and source 1790 filters. The imo_multicast_filter() KPI exists for this purpose. 1791 Transports which do not use multicast (SCTP, TCP) already reject 1792 multicast by default. Forwarding and receive performance may improve 1793 as a mutex acquisition is no longer needed in the ip_input() 1794 low-level input path. in_addmulti() and in_delmulti() are shimmed 1795 to new KPIs which exist to support SSM in-kernel. 1796 1797 For application developers, it is recommended that loopback of 1798 multicast datagrams be disabled for best performance, as this 1799 will still cause the lock to be taken for each looped-back 1800 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1801 be tuned to 0 to disable loopback by default; it defaults to 1 1802 to preserve the existing behaviour. 1803 1804 For systems administrators, to obtain best performance with 1805 multicast reception and multiple groups, it is always recommended 1806 that a card with a suitably precise hash filter is used. Hash 1807 collisions will still result in the lock being taken within the 1808 transport protocol input path to check group membership. 1809 1810 If deploying FreeBSD in an environment with IGMP snooping switches, 1811 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1812 enabled; this forces 224.0.0.0/24 group membership to be announced 1813 via IGMP. 1814 1815 The size of 'struct igmpstat' has changed; netstat needs to be 1816 recompiled to reflect this. 1817 Bump __FreeBSD_version to 800070. 1818 181920090309: 1820 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1821 updated to use it. This requires a buildworld/installworld in order to 1822 update the library and dependencies (usbconfig, etc). Its advisable to 1823 rebuild all ports which uses libusb. More specific directions are given 1824 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1825 libusb are no longer required and can be removed. 1826 182720090302: 1828 A workaround is committed to allow the creation of System V shared 1829 memory segment of size > 2 GB on the 64-bit architectures. 1830 Due to a limitation of the existing ABI, the shm_segsz member 1831 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1832 wrong for large segments. Note that limits must be explicitly 1833 raised to allow such segments to be created. 1834 183520090301: 1836 The layout of struct ifnet has changed, requiring a rebuild of all 1837 network device driver modules. 1838 183920090227: 1840 The /dev handling for the new USB stack has changed, a 1841 buildworld/installworld is required for libusb20. 1842 184320090223: 1844 The new USB2 stack has now been permanently moved in and all kernel and 1845 module names reverted to their previous values (eg, usb, ehci, ohci, 1846 ums, ...). The old usb stack can be compiled in by prefixing the name 1847 with the letter 'o', the old usb modules have been removed. 1848 Updating entry 20090216 for xorg and 20090215 for libmap may still 1849 apply. 1850 185120090217: 1852 The rc.conf(5) option if_up_delay has been renamed to 1853 defaultroute_delay to better reflect its purpose. If you have 1854 customized this setting in /etc/rc.conf you need to update it to 1855 use the new name. 1856 185720090216: 1858 xorg 7.4 wants to configure its input devices via hald which does not 1859 yet work with USB2. If the keyboard/mouse does not work in xorg then 1860 add 1861 Option "AllowEmptyInput" "off" 1862 to your ServerLayout section. This will cause X to use the configured 1863 kbd and mouse sections from your xorg.conf. 1864 186520090215: 1866 The GENERIC kernels for all architectures now default to the new USB2 1867 stack. No kernel config options or code have been removed so if a 1868 problem arises please report it and optionally revert to the old USB 1869 stack. If you are loading USB kernel modules or have a custom kernel 1870 that includes GENERIC then ensure that usb names are also changed over, 1871 eg uftdi -> usb2_serial_ftdi. 1872 1873 Older programs linked against the ports libusb 0.1 need to be 1874 redirected to the new stack's libusb20. /etc/libmap.conf can 1875 be used for this: 1876 # Map old usb library to new one for usb2 stack 1877 libusb-0.1.so.8 libusb20.so.1 1878 187920090209: 1880 All USB ethernet devices now attach as interfaces under the name ueN 1881 (eg. ue0). This is to provide a predictable name as vendors often 1882 change usb chipsets in a product without notice. 1883 188420090203: 1885 The ichsmb(4) driver has been changed to require SMBus slave 1886 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1887 All of the other SMBus controller drivers require left-justified 1888 slave addresses, so this change makes all the drivers provide the 1889 same interface. 1890 189120090201: 1892 INET6 statistics (struct ip6stat) was updated. 1893 netstat(1) needs to be recompiled. 1894 189520090119: 1896 NTFS has been removed from GENERIC kernel on amd64 to match 1897 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1898 will load ntfs.ko module automatically when NTFS support is 1899 actually needed, unless ntfs.ko is not installed or security 1900 level prohibits loading kernel modules. If either is the case, 1901 "options NTFS" has to be added into kernel config. 1902 190320090115: 1904 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1905 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1906 800061. User space tools that rely on the size of struct tcpcb in 1907 tcp_var.h (e.g. sockstat) need to be recompiled. 1908 190920081225: 1910 ng_tty(4) module updated to match the new TTY subsystem. 1911 Due to API change, user-level applications must be updated. 1912 New API support added to mpd5 CVS and expected to be present 1913 in next mpd5.3 release. 1914 191520081219: 1916 With __FreeBSD_version 800060 the makefs tool is part of 1917 the base system (it was a port). 1918 191920081216: 1920 The afdata and ifnet locks have been changed from mutexes to 1921 rwlocks, network modules will need to be re-compiled. 1922 192320081214: 1924 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1925 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1926 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1927 architecture and 40 bytes on 64-bit architecture. The userland 1928 applications "arp" and "ndp" have been updated accordingly. 1929 The output from "netstat -r" shows only routing entries and 1930 none of the L2 information. 1931 193220081130: 1933 __FreeBSD_version 800057 marks the switchover from the 1934 binary ath hal to source code. Users must add the line: 1935 1936 options AH_SUPPORT_AR5416 1937 1938 to their kernel config files when specifying: 1939 1940 device ath_hal 1941 1942 The ath_hal module no longer exists; the code is now compiled 1943 together with the driver in the ath module. It is now 1944 possible to tailor chip support (i.e. reduce the set of chips 1945 and thereby the code size); consult ath_hal(4) for details. 1946 194720081121: 1948 __FreeBSD_version 800054 adds memory barriers to 1949 <machine/atomic.h>, new interfaces to ifnet to facilitate 1950 multiple hardware transmit queues for cards that support 1951 them, and a lock-less ring-buffer implementation to 1952 enable drivers to more efficiently manage queueing of 1953 packets. 1954 195520081117: 1956 A new version of ZFS (version 13) has been merged to -HEAD. 1957 This version has zpool attribute "listsnapshots" off by 1958 default, which means "zfs list" does not show snapshots, 1959 and is the same as Solaris behavior. 1960 196120081028: 1962 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1963 196420081009: 1965 The uhci, ohci, ehci and slhci USB Host controller drivers have 1966 been put into separate modules. If you load the usb module 1967 separately through loader.conf you will need to load the 1968 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1969 controller add the following to loader.conf: 1970 1971 uhci_load="YES" 1972 ehci_load="YES" 1973 197420081009: 1975 The ABI used by the PMC toolset has changed. Please keep 1976 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1977 sync. 1978 197920081009: 1980 atapci kernel module now includes only generic PCI ATA 1981 driver. AHCI driver moved to ataahci kernel module. 1982 All vendor-specific code moved into separate kernel modules: 1983 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1984 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1985 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1986 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1987 198820080820: 1989 The TTY subsystem of the kernel has been replaced by a new 1990 implementation, which provides better scalability and an 1991 improved driver model. Most common drivers have been migrated to 1992 the new TTY subsystem, while others have not. The following 1993 drivers have not yet been ported to the new TTY layer: 1994 1995 PCI/ISA: 1996 cy, digi, rc, rp, sio 1997 1998 USB: 1999 ubser, ucycom 2000 2001 Line disciplines: 2002 ng_h4, ng_tty, ppp, sl, snp 2003 2004 Adding these drivers to your kernel configuration file shall 2005 cause compilation to fail. 2006 200720080818: 2008 ntpd has been upgraded to 4.2.4p5. 2009 201020080801: 2011 OpenSSH has been upgraded to 5.1p1. 2012 2013 For many years, FreeBSD's version of OpenSSH preferred DSA 2014 over RSA for host and user authentication keys. With this 2015 upgrade, we've switched to the vendor's default of RSA over 2016 DSA. This may cause upgraded clients to warn about unknown 2017 host keys even for previously known hosts. Users should 2018 follow the usual procedure for verifying host keys before 2019 accepting the RSA key. 2020 2021 This can be circumvented by setting the "HostKeyAlgorithms" 2022 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2023 command line. 2024 2025 Please note that the sequence of keys offered for 2026 authentication has been changed as well. You may want to 2027 specify IdentityFile in a different order to revert this 2028 behavior. 2029 203020080713: 2031 The sio(4) driver has been removed from the i386 and amd64 2032 kernel configuration files. This means uart(4) is now the 2033 default serial port driver on those platforms as well. 2034 2035 To prevent collisions with the sio(4) driver, the uart(4) driver 2036 uses different names for its device nodes. This means the 2037 onboard serial port will now most likely be called "ttyu0" 2038 instead of "ttyd0". You may need to reconfigure applications to 2039 use the new device names. 2040 2041 When using the serial port as a boot console, be sure to update 2042 /boot/device.hints and /etc/ttys before booting the new kernel. 2043 If you forget to do so, you can still manually specify the hints 2044 at the loader prompt: 2045 2046 set hint.uart.0.at="isa" 2047 set hint.uart.0.port="0x3F8" 2048 set hint.uart.0.flags="0x10" 2049 set hint.uart.0.irq="4" 2050 boot -s 2051 205220080609: 2053 The gpt(8) utility has been removed. Use gpart(8) to partition 2054 disks instead. 2055 205620080603: 2057 The version that Linuxulator emulates was changed from 2.4.2 2058 to 2.6.16. If you experience any problems with Linux binaries 2059 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2060 if it fixes the problem contact emulation mailing list. 2061 206220080525: 2063 ISDN4BSD (I4B) was removed from the src tree. You may need to 2064 update a your kernel configuration and remove relevant entries. 2065 206620080509: 2067 I have checked in code to support multiple routing tables. 2068 See the man pages setfib(1) and setfib(2). 2069 This is a hopefully backwards compatible version, 2070 but to make use of it you need to compile your kernel 2071 with options ROUTETABLES=2 (or more up to 16). 2072 207320080420: 2074 The 802.11 wireless support was redone to enable multi-bss 2075 operation on devices that are capable. The underlying device 2076 is no longer used directly but instead wlanX devices are 2077 cloned with ifconfig. This requires changes to rc.conf files. 2078 For example, change: 2079 ifconfig_ath0="WPA DHCP" 2080 to 2081 wlans_ath0=wlan0 2082 ifconfig_wlan0="WPA DHCP" 2083 see rc.conf(5) for more details. In addition, mergemaster of 2084 /etc/rc.d is highly recommended. Simultaneous update of userland 2085 and kernel wouldn't hurt either. 2086 2087 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2088 modules were merged into the base wlan module. All references 2089 to these modules (e.g. in kernel config files) must be removed. 2090 209120080408: 2092 psm(4) has gained write(2) support in native operation level. 2093 Arbitrary commands can be written to /dev/psm%d and status can 2094 be read back from it. Therefore, an application is responsible 2095 for status validation and error recovery. It is a no-op in 2096 other operation levels. 2097 209820080312: 2099 Support for KSE threading has been removed from the kernel. To 2100 run legacy applications linked against KSE libmap.conf may 2101 be used. The following libmap.conf may be used to ensure 2102 compatibility with any prior release: 2103 2104 libpthread.so.1 libthr.so.1 2105 libpthread.so.2 libthr.so.2 2106 libkse.so.3 libthr.so.3 2107 210820080301: 2109 The layout of struct vmspace has changed. This affects libkvm 2110 and any executables that link against libkvm and use the 2111 kvm_getprocs() function. In particular, but not exclusively, 2112 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2113 The effects are minimal, but it's advisable to upgrade world 2114 nonetheless. 2115 211620080229: 2117 The latest em driver no longer has support in it for the 2118 82575 adapter, this is now moved to the igb driver. The 2119 split was done to make new features that are incompatible 2120 with older hardware easier to do. 2121 212220080220: 2123 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2124 likewise the kernel option is now GEOM_LINUX_LVM. 2125 212620080211: 2127 The default NFS mount mode has changed from UDP to TCP for 2128 increased reliability. If you rely on (insecurely) NFS 2129 mounting across a firewall you may need to update your 2130 firewall rules. 2131 213220080208: 2133 Belatedly note the addition of m_collapse for compacting 2134 mbuf chains. 2135 213620080126: 2137 The fts(3) structures have been changed to use adequate 2138 integer types for their members and so to be able to cope 2139 with huge file trees. The old fts(3) ABI is preserved 2140 through symbol versioning in libc, so third-party binaries 2141 using fts(3) should still work, although they will not take 2142 advantage of the extended types. At the same time, some 2143 third-party software might fail to build after this change 2144 due to unportable assumptions made in its source code about 2145 fts(3) structure members. Such software should be fixed 2146 by its vendor or, in the worst case, in the ports tree. 2147 FreeBSD_version 800015 marks this change for the unlikely 2148 case that a portable fix is impossible. 2149 215020080123: 2151 To upgrade to -current after this date, you must be running 2152 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2153 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2154 215520071128: 2156 The ADAPTIVE_GIANT kernel option has been retired because its 2157 functionality is the default now. 2158 215920071118: 2160 The AT keyboard emulation of sunkbd(4) has been turned on 2161 by default. In order to make the special symbols of the Sun 2162 keyboards driven by sunkbd(4) work under X these now have 2163 to be configured the same way as Sun USB keyboards driven 2164 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2165 2166 Option "XkbLayout" "us" 2167 Option "XkbRules" "xorg" 2168 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2169 217020071024: 2171 It has been decided that it is desirable to provide ABI 2172 backwards compatibility to the FreeBSD 4/5/6 versions of the 2173 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2174 broken with the introduction of PCI domain support (see the 2175 20070930 entry). Unfortunately, this required the ABI of 2176 PCIOCGETCONF to be broken again in order to be able to 2177 provide backwards compatibility to the old version of that 2178 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2179 again. As for prominent ports this affects neither pciutils 2180 nor xorg-server this time, the hal port needs to be rebuilt 2181 however. 2182 218320071020: 2184 The misnamed kthread_create() and friends have been renamed 2185 to kproc_create() etc. Many of the callers already 2186 used kproc_start().. 2187 I will return kthread_create() and friends in a while 2188 with implementations that actually create threads, not procs. 2189 Renaming corresponds with version 800002. 2190 219120071010: 2192 RELENG_7 branched. 2193 2194COMMON ITEMS: 2195 2196 General Notes 2197 ------------- 2198 Avoid using make -j when upgrading. While generally safe, there are 2199 sometimes problems using -j to upgrade. If your upgrade fails with 2200 -j, please try again without -j. From time to time in the past there 2201 have been problems using -j with buildworld and/or installworld. This 2202 is especially true when upgrading between "distant" versions (eg one 2203 that cross a major release boundary or several minor releases, or when 2204 several months have passed on the -current branch). 2205 2206 Sometimes, obscure build problems are the result of environment 2207 poisoning. This can happen because the make utility reads its 2208 environment when searching for values for global variables. To run 2209 your build attempts in an "environmental clean room", prefix all make 2210 commands with 'env -i '. See the env(1) manual page for more details. 2211 2212 When upgrading from one major version to another it is generally best 2213 to upgrade to the latest code in the currently installed branch first, 2214 then do an upgrade to the new branch. This is the best-tested upgrade 2215 path, and has the highest probability of being successful. Please try 2216 this approach before reporting problems with a major version upgrade. 2217 2218 When upgrading a live system, having a root shell around before 2219 installing anything can help undo problems. Not having a root shell 2220 around can lead to problems if pam has changed too much from your 2221 starting point to allow continued authentication after the upgrade. 2222 2223 ZFS notes 2224 --------- 2225 When upgrading the boot ZFS pool to a new version, always follow 2226 these two steps: 2227 2228 1.) recompile and reinstall the ZFS boot loader and boot block 2229 (this is part of "make buildworld" and "make installworld") 2230 2231 2.) update the ZFS boot block on your boot drive 2232 2233 The following example updates the ZFS boot block on the first 2234 partition (freebsd-boot) of a GPT partitioned drive ad0: 2235 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2236 2237 Non-boot pools do not need these updates. 2238 2239 To build a kernel 2240 ----------------- 2241 If you are updating from a prior version of FreeBSD (even one just 2242 a few days old), you should follow this procedure. It is the most 2243 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2244 2245 make kernel-toolchain 2246 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2247 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2248 2249 To test a kernel once 2250 --------------------- 2251 If you just want to boot a kernel once (because you are not sure 2252 if it works, or if you want to boot a known bad kernel to provide 2253 debugging information) run 2254 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2255 nextboot -k testkernel 2256 2257 To just build a kernel when you know that it won't mess you up 2258 -------------------------------------------------------------- 2259 This assumes you are already running a CURRENT system. Replace 2260 ${arch} with the architecture of your machine (e.g. "i386", 2261 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2262 2263 cd src/sys/${arch}/conf 2264 config KERNEL_NAME_HERE 2265 cd ../compile/KERNEL_NAME_HERE 2266 make depend 2267 make 2268 make install 2269 2270 If this fails, go to the "To build a kernel" section. 2271 2272 To rebuild everything and install it on the current system. 2273 ----------------------------------------------------------- 2274 # Note: sometimes if you are running current you gotta do more than 2275 # is listed here if you are upgrading from a really old current. 2276 2277 <make sure you have good level 0 dumps> 2278 make buildworld 2279 make kernel KERNCONF=YOUR_KERNEL_HERE 2280 [1] 2281 <reboot in single user> [3] 2282 mergemaster -p [5] 2283 make installworld 2284 mergemaster -i [4] 2285 make delete-old [6] 2286 <reboot> 2287 2288 To cross-install current onto a separate partition 2289 -------------------------------------------------- 2290 # In this approach we use a separate partition to hold 2291 # current's root, 'usr', and 'var' directories. A partition 2292 # holding "/", "/usr" and "/var" should be about 2GB in 2293 # size. 2294 2295 <make sure you have good level 0 dumps> 2296 <boot into -stable> 2297 make buildworld 2298 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2299 <maybe newfs current's root partition> 2300 <mount current's root partition on directory ${CURRENT_ROOT}> 2301 make installworld DESTDIR=${CURRENT_ROOT} 2302 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2303 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2304 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2305 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2306 <reboot into current> 2307 <do a "native" rebuild/install as described in the previous section> 2308 <maybe install compatibility libraries from ports/misc/compat*> 2309 <reboot> 2310 2311 2312 To upgrade in-place from stable to current 2313 ---------------------------------------------- 2314 <make sure you have good level 0 dumps> 2315 make buildworld [9] 2316 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2317 [1] 2318 <reboot in single user> [3] 2319 mergemaster -p [5] 2320 make installworld 2321 mergemaster -i [4] 2322 make delete-old [6] 2323 <reboot> 2324 2325 Make sure that you've read the UPDATING file to understand the 2326 tweaks to various things you need. At this point in the life 2327 cycle of current, things change often and you are on your own 2328 to cope. The defaults can also change, so please read ALL of 2329 the UPDATING entries. 2330 2331 Also, if you are tracking -current, you must be subscribed to 2332 freebsd-current@freebsd.org. Make sure that before you update 2333 your sources that you have read and understood all the recent 2334 messages there. If in doubt, please track -stable which has 2335 much fewer pitfalls. 2336 2337 [1] If you have third party modules, such as vmware, you 2338 should disable them at this point so they don't crash your 2339 system on reboot. 2340 2341 [3] From the bootblocks, boot -s, and then do 2342 fsck -p 2343 mount -u / 2344 mount -a 2345 cd src 2346 adjkerntz -i # if CMOS is wall time 2347 Also, when doing a major release upgrade, it is required that 2348 you boot into single user mode to do the installworld. 2349 2350 [4] Note: This step is non-optional. Failure to do this step 2351 can result in a significant reduction in the functionality of the 2352 system. Attempting to do it by hand is not recommended and those 2353 that pursue this avenue should read this file carefully, as well 2354 as the archives of freebsd-current and freebsd-hackers mailing lists 2355 for potential gotchas. The -U option is also useful to consider. 2356 See mergemaster(8) for more information. 2357 2358 [5] Usually this step is a noop. However, from time to time 2359 you may need to do this if you get unknown user in the following 2360 step. It never hurts to do it all the time. You may need to 2361 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2362 install) after the buildworld before this step if you last updated 2363 from current before 20130425 or from -stable before 20130430. 2364 2365 [6] This only deletes old files and directories. Old libraries 2366 can be deleted by "make delete-old-libs", but you have to make 2367 sure that no program is using those libraries anymore. 2368 2369 [8] In order to have a kernel that can run the 4.x binaries needed to 2370 do an installworld, you must include the COMPAT_FREEBSD4 option in 2371 your kernel. Failure to do so may leave you with a system that is 2372 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2373 required to run the 5.x binaries on more recent kernels. And so on 2374 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2375 2376 Make sure that you merge any new devices from GENERIC since the 2377 last time you updated your kernel config file. 2378 2379 [9] When checking out sources, you must include the -P flag to have 2380 cvs prune empty directories. 2381 2382 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2383 "?=" instead of the "=" assignment operator, so that buildworld can 2384 override the CPUTYPE if it needs to. 2385 2386 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2387 not on the command line, or in /etc/make.conf. buildworld will 2388 warn if it is improperly defined. 2389FORMAT: 2390 2391This file contains a list, in reverse chronological order, of major 2392breakages in tracking -current. It is not guaranteed to be a complete 2393list of such breakages, and only contains entries since October 10, 2007. 2394If you need to see UPDATING entries from before that date, you will need 2395to fetch an UPDATING file from an older FreeBSD release. 2396 2397Copyright information: 2398 2399Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2400 2401Redistribution, publication, translation and use, with or without 2402modification, in full or in part, in any form or format of this 2403document are permitted without further permission from the author. 2404 2405THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2406IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2407WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2408DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2409INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2410(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2411SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2412HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2413STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2414IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2415POSSIBILITY OF SUCH DAMAGE. 2416 2417Contact Warner Losh if you have any questions about your use of 2418this document. 2419 2420$FreeBSD: releng/10.3/UPDATING 324740 2017-10-19 03:19:42Z gordon $ 2421