UPDATING revision 322344
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 1920170810 p21 FreeBSD-SA-17:06.openssh 20 21 Fix OpenSSH Denial of Service vulnerability. [SA-17:06] 22 2320170712 p20 FreeBSD-SA-17:05.heimdal 24 FreeBSD-EN-17:06.hyperv 25 26 Fix heimdal KDC-REP service name validation vulnerability [SA-17:05] 27 28 Boot compatibility improvements with Azure VMs. [EN-17:06] 29 3020170427 p19 FreeBSD-SA-17:04.ipfilter 31 32 Fix ipfilter(4) fragment handling panic. [SA-17:04] 33 3420170412 p18 FreeBSD-SA-17:03.ntp 35 FreeBSD-EN-17:05.xen 36 37 Fix multiple vulnerabilities of ntp. [SA-17:03] 38 39 Xen migration enhancements. [EN-17:05] 40 4120170223 p17 FreeBSD-SA-17:02.openssl 42 43 Fix OpenSSL RC4_MD5 cipher vulnerability. 44 4520170111 p16 FreeBSD-SA-17:01.openssh 46 47 Fix multiple vulnerabilities of OpenSSH. 48 4920161222 p15 FreeBSD-SA-16:39.ntp 50 51 Fix multiple vulnerabilities of ntp. 52 5320161208 p14 FreeBSD-SA-16:37.libc [revised] 54 55 Fix regressions introduced by SA-16:37.libc. 56 5720161206 p13 FreeBSD-SA-16:36.telnetd 58 FreeBSD-SA-16:37.libc 59 FreeBSD-SA-16:38.bhyve 60 FreeBSD-EN-16:19.tzcode 61 FreeBSD-EN-16:20.tzdata 62 63 Fix possible login(1) argument injection in telnetd(8). [SA-16:36] 64 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37] 65 Fix possible escape from bhyve(8) virtual machine. [SA-16:38] 66 Fix warnings about valid time zone abbreviations. [EN-16:19] 67 Update timezone database information. [EN-16:20] 68 6920161102 p12 FreeBSD-SA-16:33.openssh 70 FreeBSD-SA-16:35.openssl 71 72 Fix OpenSSH remote Denial of Service vulnerability. [SA-16:33] 73 74 Fix OpenSSL remote DoS vulnerability. [SA-16:35] 75 7620161025 p11 FreeBSD-SA-16:15.sysarch [revised] 77 FreeBSD-EN-16:17.vm 78 79 Fix incorrect argument validation in sysarch(2). [SA-16:15] 80 Fix virtual memory subsystem bugs. [EN-16:17] 81 8220161010 p10 FreeBSD-SA-16:29.bspatch 83 FreeBSD-SA-16:30.portsnap 84 FreeBSD-SA-16:31.libarchive 85 86 Fix bspatch heap overflow vulnerability. [SA-16:29] 87 88 Fix multiple portsnap vulnerabilities. [SA-16:30] 89 90 Fix multiple libarchive vulnerabilities. [SA-16:31] 91 9220160926 p9 FreeBSD-SA-16:26.openssl [revised] 93 94 Fix OpenSSL regression introduced in SA-16:26. 95 9620160923 p8 FreeBSD-SA-16:26.openssl 97 98 Fix multiple OpenSSL vulnerabilitites. 99 10020160811 p7 FreeBSD-EN-16:10.dhclient 101 FreeBSD-EN-16:11.vmbus 102 FreeBSD-EN-16:12.hv_storvsc 103 FreeBSD-EN-16:13.vmbus 104 FreeBSD-EN-16:14.hv_storvsc 105 FreeBSD-EN-16:15.vmbus 106 FreeBSD-EN-16:16.hv_storvsc 107 108 Fix handling of unknown options from a DHCP server. [EN-16:10] 109 Fix a panic in hv_vmbus(4). [EN-16:11] 110 Fix missing hotplugged disk in hv_storvsc(4). [EN-16:12] 111 Fix the timecounter emulation in hv_vmbus(4). [EN-16:13] 112 Fix callout(9) handling in hv_storvsc(4). [EN-16:14] 113 Fix memory allocation issues in hv_vmbus(4). [EN-16:15] 114 Fix SCSI command handling in hv_storvsc(4). [EN-16:16] 115 11620160725 p6 FreeBSD-SA-16:25.bspatch 117 FreeBSD-EN-16:09.freebsd-update 118 119 Fix bspatch heap overflow vulnerability. [SA-16:25] 120 121 Fix freebsd-update(8) support of FreeBSD 11.0 release 122 distribution. [EN-16:09] 123 12420160604 p5 FreeBSD-SA-16:24.ntp 125 126 Fix multiple vulnerabilities of ntp. 127 12820160531 p4 FreeBSD-SA-16:20.linux 129 FreeBSD-SA-16:21.43bsd 130 FreeBSD-SA-16:22.libarchive 131 132 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 133 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 134 Fix directory traversal in cpio(1). [SA-16:22] 135 136 13720160517 p3 FreeBSD-SA-16:18.atkbd 138 FreeBSD-SA-16:19.sendmsg 139 140 Fix buffer overflow in keyboard driver. [SA-16:18] 141 142 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 143 14420160504 p2 FreeBSD-SA-16:17.openssl 145 FreeBSD-EN-16:06.libc 146 FreeBSD-EN-16:07.ipi 147 FreeBSD-EN-16:08.zfs 148 149 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 150 151 Fix performance regression in libc hash(3). [EN-16:06] 152 153 Fix excessive latency in x86 IPI delivery. [EN-16:07] 154 155 Fix memory leak in ZFS. [EN-16:08] 156 15720160429 p1 FreeBSD-SA-16:16.ntp 158 159 Fix multiple vulnerabilities of ntp. 160 16120160329: 162 10.3-RELEASE. 163 16420160124: 165 The NONE and HPN patches has been removed from OpenSSH. They are 166 still available in the security/openssh-portable port. 167 16820151214: 169 r292223 changed the internal interface between the nfsd.ko and 170 nfscommon.ko modules. As such, they must both be upgraded to-gether. 171 __FreeBSD_version has been bumped because of this. 172 17320151113: 174 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 175 Kernel modules isp_2400_multi and isp_2500_multi were removed and 176 should be replaced with isp_2400 and isp_2500 modules respectively. 177 17820150806: 179 The menu.rc and loader.rc files will now be replaced during 180 upgrades. Please migrate local changes to menu.rc.local and 181 loader.rc.local instead. 182 18320151026: 184 NTP has been upgraded to 4.2.8p4. 185 18620151025: 187 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 188 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 189 and devel/kyua to version 0.20+ and adjust any calling code to work 190 with Kyuafile and kyua. 191 19220150823: 193 The polarity of Pulse Per Second (PPS) capture events with the 194 uart(4) driver has been corrected. Prior to this change the PPS 195 "assert" event corresponded to the trailing edge of a positive PPS 196 pulse and the "clear" event was the leading edge of the next pulse. 197 198 As the width of a PPS pulse in a typical GPS receiver is on the 199 order of 1 millisecond, most users will not notice any significant 200 difference with this change. 201 202 Anyone who has compensated for the historical polarity reversal by 203 configuring a negative offset equal to the pulse width will need to 204 remove that workaround. 205 20620150822: 207 From legacy ata(4) driver was removed support for SATA controllers 208 supported by more functional drivers ahci(4), siis(4) and mvs(4). 209 Kernel modules ataahci and ataadaptec were removed completely, 210 replaced by ahci and mvs modules respectively. 211 21220150813: 213 10.2-RELEASE. 214 21520150731: 216 As ZFS requires more kernel stack pages than is the default on some 217 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 218 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 219 220 Please consider using 'options KSTACK_PAGES=X' where X is greater 221 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 222 22320150703: 224 The default Unbound configuration now enables remote control 225 using a local socket. Users who have already enabled the 226 local_unbound service should regenerate their configuration 227 by running "service local_unbound setup" as root. 228 22920150624: 230 An additional fix for the issue described in the 20150614 sendmail 231 entry below has been been committed in revision 284786. 232 23320150615: 234 The fix for the issue described in the 20150614 sendmail entry 235 below has been been committed in revision 284485. The work 236 around described in that entry is no longer needed unless the 237 default setting is overridden by a confDH_PARAMETERS configuration 238 setting of '5' or pointing to a 512 bit DH parameter file. 239 24020150614: 241 The import of openssl to address the FreeBSD-SA-15:10.openssl 242 security advisory includes a change which rejects handshakes 243 with DH parameters below 768 bits. sendmail releases prior 244 to 8.15.2 (not yet released), defaulted to a 512 bit 245 DH parameter setting for client connections. To work around 246 this interoperability, sendmail can be configured to use a 247 2048 bit DH parameter by: 248 249 1. Edit /etc/mail/`hostname`.mc 250 2. If a setting for confDH_PARAMETERS does not exist or 251 exists and is set to a string beginning with '5', 252 replace it with '2'. 253 3. If a setting for confDH_PARAMETERS exists and is set to 254 a file path, create a new file with: 255 openssl dhparam -out /path/to/file 2048 256 4. Rebuild the .cf file: 257 cd /etc/mail/; make; make install 258 5. Restart sendmail: 259 cd /etc/mail/; make restart 260 261 A sendmail patch is coming, at which time this file will be 262 updated. 263 26420150601: 265 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 266 defined in symlink(7); previously symlinks were silently ignored. 267 26820150430: 269 The const qualifier has been removed from iconv(3) to comply with 270 POSIX. The ports tree is aware of this from r384038 onwards. 271 27220141215: 273 At svn r275807, The default linux compat kernel ABI has been adjusted 274 to 2.6.18 in support of the linux-c6 compat ports infrastructure 275 update. If you wish to continue using the linux-f10 compat ports, 276 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 277 encouraged to update their linux-compat packages to linux-c6 during 278 their next update cycle. 279 280 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 281 28220141205: 283 pjdfstest has been integrated into kyua as an opt-in test suite. 284 Please see share/doc/pjdfstest/README for a more details on how to 285 execute it. 286 28720141118: 288 10.1-RELEASE. 289 29020140904: 291 The ofwfb driver, used to provide a graphics console on PowerPC when 292 using vt(4), no longer allows mmap() of all of physical memory. This 293 will prevent Xorg on PowerPC with some ATI graphics cards from 294 initializing properly unless x11-servers/xorg-server is updated to 295 1.12.4_8 or newer. 296 29720140831: 298 The libatf-c and libatf-c++ major versions were downgraded to 0 and 299 1 respectively to match the upstream numbers. They were out of 300 sync because, when they were originally added to FreeBSD, the 301 upstream versions were not respected. These libraries are private 302 and not yet built by default, so renumbering them should be a 303 non-issue. However, unclean source trees will yield broken test 304 programs once the operator executes "make delete-old-libs" after a 305 "make installworld". 306 307 Additionally, the atf-sh binary was made private by moving it into 308 /usr/libexec/. Already-built shell test programs will keep the 309 path to the old binary so they will break after "make delete-old" 310 is run. 311 312 If you are using WITH_TESTS=yes (not the default), wipe the object 313 tree and rebuild from scratch to prevent spurious test failures. 314 This is only needed once: the misnumbered libraries and misplaced 315 binaries have been added to OptionalObsoleteFiles.inc so they will 316 be removed during a clean upgrade. 317 31820140814: 319 The ixgbe tunables now match their sysctl counterparts, for example: 320 hw.ixgbe.enable_aim => hw.ix.enable_aim 321 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 322 32320140801: 324 The NFSv4.1 server committed by r269398 changes the internal 325 function call interfaces used between the NFS and krpc modules. 326 As such, __FreeBSD_version was bumped. 327 32820140729: 329 The default unbound configuration has been modified to address 330 issues with reverse lookups on networks that use private 331 address ranges. If you use the local_unbound service, run 332 "service local_unbound setup" as root to regenerate your 333 configuration, then "service local_unbound reload" to load the 334 new configuration. 335 33620140717: 337 It is no longer necessary to include the dwarf version in your DEBUG 338 options in your kernel config file. The bug that required it to be 339 placed in the config file has bene fixed. DEBUG should now just 340 contain -g. The build system will automatically update things 341 to do the right thing. 342 34320140715: 344 Several ABI breaking changes were merged to CTL and new iSCSI code. 345 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 346 iscsictl need to be rebuilt to work with a new kernel. 347 34820140708: 349 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 350 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 351 which differs from the behaviour controlled by this knob.) 352 35320140608: 354 On i386 and amd64 systems, the onifconsole flag is now set by default 355 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 356 as a login TTY if it is set in the bootloader as an active kernel 357 console. No changes in behavior should result otherwise. To revert to 358 the previous behavior, set ttyu0 to "off" in /etc/ttys. 359 36020140512: 361 Clang and llvm have been upgraded to 3.4.1 release. 362 36320140321: 364 Clang and llvm have been upgraded to 3.4 release. 365 36620140306: 367 If a Makefile in a tests/ directory was auto-generating a Kyuafile 368 instead of providing an explicit one, this would prevent such 369 Makefile from providing its own Kyuafile in the future during 370 NO_CLEAN builds. This has been fixed in the Makefiles but manual 371 intervention is needed to clean an objdir if you use NO_CLEAN: 372 # find /usr/obj -name Kyuafile | xargs rm -f 373 37420140303: 375 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 376 capability mode support. Please note that enabling the feature in 377 kernel is still highly recommended. 378 37920140227: 380 OpenSSH is now built with sandbox support, and will use sandbox as 381 the default privilege separation method. This requires Capsicum 382 capability mode support in kernel. 383 38420140216: 385 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 386 been deprecated and will not be part of FreeBSD 11.0 and later 387 releases. If you use this driver, please consider switching to 388 the nfe(4) driver instead. 389 39020140120: 391 10.0-RELEASE. 392 39320131216: 394 The behavior of gss_pseudo_random() for the krb5 mechanism 395 has changed, for applications requesting a longer random string 396 than produced by the underlying enctype's pseudo-random() function. 397 In particular, the random string produced from a session key of 398 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 399 be different at the 17th octet and later, after this change. 400 The counter used in the PRF+ construction is now encoded as a 401 big-endian integer in accordance with RFC 4402. 402 __FreeBSD_version is bumped to 1000701. 403 40420131108: 405 The WITHOUT_ATF build knob has been removed and its functionality 406 has been subsumed into the more generic WITHOUT_TESTS. If you were 407 using the former to disable the build of the ATF libraries, you 408 should change your settings to use the latter. 409 41020131031: 411 The default version of mtree is nmtree which is obtained from 412 NetBSD. The output is generally the same, but may vary 413 slightly. If you found you need identical output adding 414 "-F freebsd9" to the command line should do the trick. For the 415 time being, the old mtree is available as fmtree. 416 41720131014: 418 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 419 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 420 1.1.4_8 and verify bsdyml not linked in, before running "make 421 delete-old-libs": 422 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 423 or 424 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 425 42620131010: 427 The rc.d/jail script has been updated to support jail(8) 428 configuration file. The "jail_<jname>_*" rc.conf(5) variables 429 for per-jail configuration are automatically converted to 430 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 431 This is transparently backward compatible. See below about some 432 incompatibilities and rc.conf(5) manual page for more details. 433 434 These variables are now deprecated in favor of jail(8) configuration 435 file. One can use "rc.d/jail config <jname>" command to generate 436 a jail(8) configuration file in /var/run/jail.<jname>.conf without 437 running the jail(8) utility. The default pathname of the 438 configuration file is /etc/jail.conf and can be specified by 439 using $jail_conf or $jail_<jname>_conf variables. 440 441 Please note that jail_devfs_ruleset accepts an integer at 442 this moment. Please consider to rewrite the ruleset name 443 with an integer. 444 44520130930: 446 BIND has been removed from the base system. If all you need 447 is a local resolver, simply enable and start the local_unbound 448 service instead. Otherwise, several versions of BIND are 449 available in the ports tree. The dns/bind99 port is one example. 450 451 With this change, nslookup(1) and dig(1) are no longer in the base 452 system. Users should instead use host(1) and drill(1) which are 453 in the base system. Alternatively, nslookup and dig can 454 be obtained by installing the dns/bind-tools port. 455 45620130916: 457 With the addition of unbound(8), a new unbound user is now 458 required during installworld. "mergemaster -p" can be used to 459 add the user prior to installworld, as documented in the handbook. 460 46120130911: 462 OpenSSH is now built with DNSSEC support, and will by default 463 silently trust signed SSHFP records. This can be controlled with 464 the VerifyHostKeyDNS client configuration setting. DNSSEC support 465 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 466 46720130906: 468 The GNU Compiler Collection and C++ standard library (libstdc++) 469 are no longer built by default on platforms where clang is the system 470 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 471 options in src.conf. 472 47320130905: 474 The PROCDESC kernel option is now part of the GENERIC kernel 475 configuration and is required for the rwhod(8) to work. 476 If you are using custom kernel configuration, you should include 477 'options PROCDESC'. 478 47920130905: 480 The API and ABI related to the Capsicum framework was modified 481 in backward incompatible way. The userland libraries and programs 482 have to be recompiled to work with the new kernel. This includes the 483 following libraries and programs, but the whole buildworld is 484 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 485 kdump, procstat, rwho, rwhod, uniq. 486 48720130903: 488 AES-NI intrinsic support has been added to gcc. The AES-NI module 489 has been updated to use this support. A new gcc is required to build 490 the aesni module on both i386 and amd64. 491 49220130821: 493 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 494 Thus "device padlock_rng" and "device rdrand_rng" should be 495 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 496 49720130813: 498 WITH_ICONV has been split into two feature sets. WITH_ICONV now 499 enables just the iconv* functionality and is now on by default. 500 WITH_LIBICONV_COMPAT enables the libiconv api and link time 501 compatability. Set WITHOUT_ICONV to build the old way. 502 If you have been using WITH_ICONV before, you will very likely 503 need to turn on WITH_LIBICONV_COMPAT. 504 50520130806: 506 INVARIANTS option now enables DEBUG for code with OpenSolaris and 507 Illumos origin, including ZFS. If you have INVARIANTS in your 508 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 509 explicitly. 510 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 511 locks if WITNESS option was set. Because that generated a lot of 512 witness(9) reports and all of them were believed to be false 513 positives, this is no longer done. New option OPENSOLARIS_WITNESS 514 can be used to achieve the previous behavior. 515 51620130806: 517 Timer values in IPv6 data structures now use time_uptime instead 518 of time_second. Although this is not a user-visible functional 519 change, userland utilities which directly use them---ndp(8), 520 rtadvd(8), and rtsold(8) in the base system---need to be updated 521 to r253970 or later. 522 52320130802: 524 find -delete can now delete the pathnames given as arguments, 525 instead of only files found below them or if the pathname did 526 not contain any slashes. Formerly, the following error message 527 would result: 528 529 find: -delete: <path>: relative path potentially not safe 530 531 Deleting the pathnames given as arguments can be prevented 532 without error messages using -mindepth 1 or by changing 533 directory and passing "." as argument to find. This works in the 534 old as well as the new version of find. 535 53620130726: 537 Behavior of devfs rules path matching has been changed. 538 Pattern is now always matched against fully qualified devfs 539 path and slash characters must be explicitly matched by 540 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 541 subdirectories must be reviewed. 542 54320130716: 544 The default ARM ABI has changed to the ARM EABI. The old ABI is 545 incompatible with the ARM EABI and all programs and modules will 546 need to be rebuilt to work with a new kernel. 547 548 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 549 550 NOTE: Support for the old ABI will be removed in the future and 551 users are advised to upgrade. 552 55320130709: 554 pkg_install has been disconnected from the build if you really need it 555 you should add WITH_PKGTOOLS in your src.conf(5). 556 55720130709: 558 Most of network statistics structures were changed to be able 559 keep 64-bits counters. Thus all tools, that work with networking 560 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 561 56220130618: 563 Fix a bug that allowed a tracing process (e.g. gdb) to write 564 to a memory-mapped file in the traced process's address space 565 even if neither the traced process nor the tracing process had 566 write access to that file. 567 56820130615: 569 CVS has been removed from the base system. An exact copy 570 of the code is available from the devel/cvs port. 571 57220130613: 573 Some people report the following error after the switch to bmake: 574 575 make: illegal option -- J 576 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 577 ... 578 *** [buildworld] Error code 2 579 580 this likely due to an old instance of make in 581 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 582 which src/Makefile will use that blindly, if it exists, so if 583 you see the above error: 584 585 rm -rf `make -V MAKEPATH` 586 587 should resolve it. 588 58920130516: 590 Use bmake by default. 591 Whereas before one could choose to build with bmake via 592 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 593 make. The goal is to remove these knobs for 10-RELEASE. 594 595 It is worth noting that bmake (like gmake) treats the command 596 line as the unit of failure, rather than statements within the 597 command line. Thus '(cd some/where && dosomething)' is safer 598 than 'cd some/where; dosomething'. The '()' allows consistent 599 behavior in parallel build. 600 60120130429: 602 Fix a bug that allows NFS clients to issue READDIR on files. 603 60420130426: 605 The WITHOUT_IDEA option has been removed because 606 the IDEA patent expired. 607 60820130426: 609 The sysctl which controls TRIM support under ZFS has been renamed 610 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 611 enabled by default. 612 61320130425: 614 The mergemaster command now uses the default MAKEOBJDIRPREFIX 615 rather than creating it's own in the temporary directory in 616 order allow access to bootstrapped versions of tools such as 617 install and mtree. When upgrading from version of FreeBSD where 618 the install command does not support -l, you will need to 619 install a new mergemaster command if mergemaster -p is required. 620 This can be accomplished with the command (cd src/usr.sbin/mergemaster 621 && make install). 622 62320130404: 624 Legacy ATA stack, disabled and replaced by new CAM-based one since 625 FreeBSD 9.0, completely removed from the sources. Kernel modules 626 atadisk and atapi*, user-level tools atacontrol and burncd are 627 removed. Kernel option `options ATA_CAM` is now permanently enabled 628 and removed. 629 63020130319: 631 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 632 and socketpair(2). Software, in particular Kerberos, may 633 automatically detect and use these during building. The resulting 634 binaries will not work on older kernels. 635 63620130308: 637 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 638 information, see the respective 20130304 entry). 639 64020130304: 641 Recent commits to callout(9) changed the size of struct callout, 642 so the KBI is probably heavily disturbed. Also, some functions 643 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 644 by macros. Every kernel module using it won't load, so rebuild 645 is requested. 646 647 The ctl device has been re-enabled in GENERIC for i386 and amd64, 648 but does not initialize by default (because of the new CTL_DISABLE 649 option) to save memory. To re-enable it, remove the CTL_DISABLE 650 option from the kernel config file or set kern.cam.ctl.disable=0 651 in /boot/loader.conf. 652 65320130301: 654 The ctl device has been disabled in GENERIC for i386 and amd64. 655 This was done due to the extra memory being allocated at system 656 initialisation time by the ctl driver which was only used if 657 a CAM target device was created. This makes a FreeBSD system 658 unusable on 128MB or less of RAM. 659 66020130208: 661 A new compression method (lz4) has been merged to -HEAD. Please 662 refer to zpool-features(7) for more information. 663 664 Please refer to the "ZFS notes" section of this file for information 665 on upgrading boot ZFS pools. 666 66720130129: 668 A BSD-licensed patch(1) variant has been added and is installed 669 as bsdpatch, being the GNU version the default patch. 670 To inverse the logic and use the BSD-licensed one as default, 671 while having the GNU version installed as gnupatch, rebuild 672 and install world with the WITH_BSD_PATCH knob set. 673 67420130121: 675 Due to the use of the new -l option to install(1) during build 676 and install, you must take care not to directly set the INSTALL 677 make variable in your /etc/make.conf, /etc/src.conf, or on the 678 command line. If you wish to use the -C flag for all installs 679 you may be able to add INSTALL+=-C to /etc/make.conf or 680 /etc/src.conf. 681 68220130118: 683 The install(1) option -M has changed meaning and now takes an 684 argument that is a file or path to append logs to. In the 685 unlikely event that -M was the last option on the command line 686 and the command line contained at least two files and a target 687 directory the first file will have logs appended to it. The -M 688 option served little practical purpose in the last decade so its 689 use is expected to be extremely rare. 690 69120121223: 692 After switching to Clang as the default compiler some users of ZFS 693 on i386 systems started to experience stack overflow kernel panics. 694 Please consider using 'options KSTACK_PAGES=4' in such configurations. 695 69620121222: 697 GEOM_LABEL now mangles label names read from file system metadata. 698 Mangling affect labels containing spaces, non-printable characters, 699 '%' or '"'. Device names in /etc/fstab and other places may need to 700 be updated. 701 70220121217: 703 By default, only the 10 most recent kernel dumps will be saved. To 704 restore the previous behaviour (no limit on the number of kernel dumps 705 stored in the dump directory) add the following line to /etc/rc.conf: 706 707 savecore_flags="" 708 70920121201: 710 With the addition of auditdistd(8), a new auditdistd user is now 711 required during installworld. "mergemaster -p" can be used to 712 add the user prior to installworld, as documented in the handbook. 713 71420121117: 715 The sin6_scope_id member variable in struct sockaddr_in6 is now 716 filled by the kernel before passing the structure to the userland via 717 sysctl or routing socket. This means the KAME-specific embedded scope 718 id in sin6_addr.s6_addr[2] is always cleared in userland application. 719 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 720 __FreeBSD_version is bumped to 1000025. 721 72220121105: 723 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 724 This means that the world and kernel will be compiled with clang 725 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 726 and /usr/bin/cpp. To disable this behavior and revert to building 727 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 728 of current may need to bootstrap WITHOUT_CLANG first if the clang 729 build fails (its compatibility window doesn't extend to the 9 stable 730 branch point). 731 73220121102: 733 The IPFIREWALL_FORWARD kernel option has been removed. Its 734 functionality now turned on by default. 735 73620121023: 737 The ZERO_COPY_SOCKET kernel option has been removed and 738 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 739 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 740 mechanism which is not safe and may result in kernel crashes. 741 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 742 driver supports disposeable external page sized mbuf storage. 743 Proper replacements for both zero-copy mechanisms are under 744 consideration and will eventually lead to complete removal 745 of the two kernel options. 746 74720121023: 748 The IPv4 network stack has been converted to network byte 749 order. The following modules need to be recompiled together 750 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 751 pf(4), ipfw(4), ng_ipfw(4), stf(4). 752 75320121022: 754 Support for non-MPSAFE filesystems was removed from VFS. The 755 VFS_VERSION was bumped, all filesystem modules shall be 756 recompiled. 757 75820121018: 759 All the non-MPSAFE filesystems have been disconnected from 760 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 761 portalfs, smbfs, xfs. 762 76320121016: 764 The interface cloning API and ABI has changed. The following 765 modules need to be recompiled together with kernel: 766 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 767 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 768 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 769 77020121015: 771 The sdhci driver was split in two parts: sdhci (generic SD Host 772 Controller logic) and sdhci_pci (actual hardware driver). 773 No kernel config modifications are required, but if you 774 load sdhc as a module you must switch to sdhci_pci instead. 775 77620121014: 777 Import the FUSE kernel and userland support into base system. 778 77920121013: 780 The GNU sort(1) program has been removed since the BSD-licensed 781 sort(1) has been the default for quite some time and no serious 782 problems have been reported. The corresponding WITH_GNU_SORT 783 knob has also gone. 784 78520121006: 786 The pfil(9) API/ABI for AF_INET family has been changed. Packet 787 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 788 with new kernel. 789 79020121001: 791 The net80211(4) ABI has been changed to allow for improved driver 792 PS-POLL and power-save support. All wireless drivers need to be 793 recompiled to work with the new kernel. 794 79520120913: 796 The random(4) support for the VIA hardware random number 797 generator (`PADLOCK') is no longer enabled unconditionally. 798 Add the padlock_rng device in the custom kernel config if 799 needed. The GENERIC kernels on i386 and amd64 do include the 800 device, so the change only affects the custom kernel 801 configurations. 802 80320120908: 804 The pf(4) packet filter ABI has been changed. pfctl(8) and 805 snmp_pf module need to be recompiled to work with new kernel. 806 80720120828: 808 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 809 to -HEAD. Pools that have empty_bpobj in active state can not be 810 imported read-write with ZFS implementations that do not support 811 this feature. For more information read the zpool-features(5) 812 manual page. 813 81420120727: 815 The sparc64 ZFS loader has been changed to no longer try to auto- 816 detect ZFS providers based on diskN aliases but now requires these 817 to be explicitly listed in the OFW boot-device environment variable. 818 81920120712: 820 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 821 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 822 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 823 82420120712: 825 The following sysctls and tunables have been renamed for consistency 826 with other variables: 827 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 828 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 829 83020120628: 831 The sort utility has been replaced with BSD sort. For now, GNU sort 832 is also available as "gnusort" or the default can be set back to 833 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 834 installed as "bsdsort". 835 83620120611: 837 A new version of ZFS (pool version 5000) has been merged to -HEAD. 838 Starting with this version the old system of ZFS pool versioning 839 is superseded by "feature flags". This concept enables forward 840 compatibility against certain future changes in functionality of ZFS 841 pools. The first read-only compatible "feature flag" for ZFS pools 842 is named "com.delphix:async_destroy". For more information 843 read the new zpool-features(5) manual page. 844 Please refer to the "ZFS notes" section of this file for information 845 on upgrading boot ZFS pools. 846 84720120417: 848 The malloc(3) implementation embedded in libc now uses sources imported 849 as contrib/jemalloc. The most disruptive API change is to 850 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 851 delete it prior to installworld, and optionally re-create it using the 852 new format after rebooting. See malloc.conf(5) for details 853 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 854 NAMESPACE section). 855 85620120328: 857 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 858 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 859 now spelled mips. This is to aid compatibility with third-party 860 software that expects this naming scheme in uname(3). Little-endian 861 settings are unchanged. If you are updating a big-endian mips64 machine 862 from before this change, you may need to set MACHINE_ARCH=mips64 in 863 your environment before the new build system will recognize your machine. 864 86520120306: 866 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 867 platforms. 868 86920120229: 870 Now unix domain sockets behave "as expected" on nullfs(5). Previously 871 nullfs(5) did not pass through all behaviours to the underlying layer, 872 as a result if we bound to a socket on the lower layer we could connect 873 only to the lower path; if we bound to the upper layer we could connect 874 only to the upper path. The new behavior is one can connect to both the 875 lower and the upper paths regardless what layer path one binds to. 876 87720120211: 878 The getifaddrs upgrade path broken with 20111215 has been restored. 879 If you have upgraded in between 20111215 and 20120209 you need to 880 recompile libc again with your kernel. You still need to recompile 881 world to be able to configure CARP but this restriction already 882 comes from 20111215. 883 88420120114: 885 The set_rcvar() function has been removed from /etc/rc.subr. All 886 base and ports rc.d scripts have been updated, so if you have a 887 port installed with a script in /usr/local/etc/rc.d you can either 888 hand-edit the rcvar= line, or reinstall the port. 889 890 An easy way to handle the mass-update of /etc/rc.d: 891 rm /etc/rc.d/* && mergemaster -i 892 89320120109: 894 panic(9) now stops other CPUs in the SMP systems, disables interrupts 895 on the current CPU and prevents other threads from running. 896 This behavior can be reverted using the kern.stop_scheduler_on_panic 897 tunable/sysctl. 898 The new behavior can be incompatible with kern.sync_on_panic. 899 90020111215: 901 The carp(4) facility has been changed significantly. Configuration 902 of the CARP protocol via ifconfig(8) has changed, as well as format 903 of CARP events submitted to devd(8) has changed. See manual pages 904 for more information. The arpbalance feature of carp(4) is currently 905 not supported anymore. 906 907 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 908 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 909 need to be recompiled. 910 91120111122: 912 The acpi_wmi(4) status device /dev/wmistat has been renamed to 913 /dev/wmistat0. 914 91520111108: 916 The option VFS_ALLOW_NONMPSAFE option has been added in order to 917 explicitely support non-MPSAFE filesystems. 918 It is on by default for all supported platform at this present 919 time. 920 92120111101: 922 The broken amd(4) driver has been replaced with esp(4) in the amd64, 923 i386 and pc98 GENERIC kernel configuration files. 924 92520110930: 926 sysinstall has been removed 927 92820110923: 929 The stable/9 branch created in subversion. This corresponds to the 930 RELENG_9 branch in CVS. 931 93220110913: 933 This commit modifies vfs_register() so that it uses a hash 934 calculation to set vfc_typenum, which is enabled by default. 935 The first time a system is booted after this change, the 936 vfc_typenum values will change for all file systems. The 937 main effect of this is a change to the NFS server file handles 938 for file systems that use vfc_typenum in their fsid, such as ZFS. 939 It will, however, prevent vfc_typenum from changing when file 940 systems are loaded in a different order for subsequent reboots. 941 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 942 until you are ready to remount all NFS clients after a reboot. 943 94420110828: 945 Bump the shared library version numbers for libraries that 946 do not use symbol versioning, have changed the ABI compared 947 to stable/8 and which shared library version was not bumped. 948 Done as part of 9.0-RELEASE cycle. 949 95020110815: 951 During the merge of Capsicum features, the fget(9) KPI was modified. 952 This may require the rebuilding of out-of-tree device drivers -- 953 issues have been reported specifically with the nVidia device driver. 954 __FreeBSD_version is bumped to 900041. 955 956 Also, there is a period between 20110811 and 20110814 where the 957 special devices /dev/{stdin,stdout,stderr} did not work correctly. 958 Building world from a kernel during that window may not work. 959 96020110628: 961 The packet filter (pf) code has been updated to OpenBSD 4.5. 962 You need to update userland tools to be in sync with kernel. 963 This update breaks backward compatibility with earlier pfsync(4) 964 versions. Care must be taken when updating redundant firewall setups. 965 96620110608: 967 The following sysctls and tunables are retired on x86 platforms: 968 machdep.hlt_cpus 969 machdep.hlt_logical_cpus 970 The following sysctl is retired: 971 machdep.hyperthreading_allowed 972 The sysctls were supposed to provide a way to dynamically offline and 973 online selected CPUs on x86 platforms, but the implementation has not 974 been reliable especially with SCHED_ULE scheduler. 975 machdep.hyperthreading_allowed tunable is still available to ignore 976 hyperthreading CPUs at OS level. 977 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 978 where X is an APIC ID of a CPU. Be advised, though, that disabling 979 CPUs in non-uniform fashion will result in non-uniform topology and 980 may lead to sub-optimal system performance with SCHED_ULE, which is 981 a default scheduler. 982 98320110607: 984 cpumask_t type is retired and cpuset_t is used in order to describe 985 a mask of CPUs. 986 98720110531: 988 Changes to ifconfig(8) for dynamic address family detection mandate 989 that you are running a kernel of 20110525 or later. Make sure to 990 follow the update procedure to boot a new kernel before installing 991 world. 992 99320110513: 994 Support for sun4v architecture is officially dropped 995 99620110503: 997 Several KPI breaking changes have been committed to the mii(4) layer, 998 the PHY drivers and consequently some Ethernet drivers using mii(4). 999 This means that miibus.ko and the modules of the affected Ethernet 1000 drivers need to be recompiled. 1001 1002 Note to kernel developers: Given that the OUI bit reversion problem 1003 was fixed as part of these changes all mii(4) commits related to OUIs, 1004 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 1005 handling, no longer can be merged verbatim to stable/8 and previous 1006 branches. 1007 100820110430: 1009 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1010 into their kernel configurations along with 'device pci'. 1011 101220110427: 1013 The default NFS client is now the new NFS client, so fstype "newnfs" 1014 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1015 Although mounts via fstype "nfs" will usually work without userland 1016 changes, it is recommended that the mount(8) and mount_nfs(8) 1017 commands be rebuilt from sources and that a link to mount_nfs called 1018 mount_oldnfs be created. The new client is compiled into the 1019 kernel with "options NFSCL" and this is needed for diskless root 1020 file systems. The GENERIC kernel configs have been changed to use 1021 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1022 To use the regular/old client, you can "mount -t oldnfs ...". For 1023 a diskless root file system, you must also include a line like: 1024 1025 vfs.root.mountfrom="oldnfs:" 1026 1027 in the boot/loader.conf on the root fs on the NFS server to make 1028 a diskless root fs use the old client. 1029 103020110424: 1031 The GENERIC kernels for all architectures now default to the new 1032 CAM-based ATA stack. It means that all legacy ATA drivers were 1033 removed and replaced by respective CAM drivers. If you are using 1034 ATA device names in /etc/fstab or other places, make sure to update 1035 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1036 where 'Y's are the sequential numbers starting from zero for each type 1037 in order of detection, unless configured otherwise with tunables, 1038 see cam(4)). There will be symbolic links created in /dev/ to map 1039 old adX devices to the respective adaY. They should provide basic 1040 compatibility for file systems mounting in most cases, but they do 1041 not support old user-level APIs and do not have respective providers 1042 in GEOM. Consider using updated management tools with new device names. 1043 1044 It is possible to load devices ahci, ata, siis and mvs as modules, 1045 but option ATA_CAM should remain in kernel configuration to make ata 1046 module work as CAM driver supporting legacy ATA controllers. Device ata 1047 still can be used in modular fashion (atacore + ...). Modules atadisk 1048 and atapi* are not used and won't affect operation in ATA_CAM mode. 1049 Note that to use CAM-based ATA kernel should include CAM devices 1050 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1051 them are parts of the cam module. 1052 1053 ataraid(4) functionality is now supported by the RAID GEOM class. 1054 To use it you can load geom_raid kernel module and use graid(8) tool 1055 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1056 1057 No kernel config options or code have been removed, so if a problem 1058 arises, please report it and optionally revert to the old ATA stack. 1059 In order to do it you can remove from the kernel config: 1060 options ATA_CAM 1061 device ahci 1062 device mvs 1063 device siis 1064 , and instead add back: 1065 device atadisk # ATA disk drives 1066 device ataraid # ATA RAID drives 1067 device atapicd # ATAPI CDROM drives 1068 device atapifd # ATAPI floppy drives 1069 device atapist # ATAPI tape drives 1070 107120110423: 1072 The default NFS server has been changed to the new server, which 1073 was referred to as the experimental server. If you need to switch 1074 back to the old NFS server, you must now put the "-o" option on 1075 both the mountd and nfsd commands. This can be done using the 1076 mountd_flags and nfs_server_flags rc.conf variables until an 1077 update to the rc scripts is committed, which is coming soon. 1078 107920110418: 1080 The GNU Objective-C runtime library (libobjc), and other Objective-C 1081 related components have been removed from the base system. If you 1082 require an Objective-C library, please use one of the available ports. 1083 108420110331: 1085 ath(4) has been split into bus- and device- modules. if_ath contains 1086 the HAL, the TX rate control and the network device code. if_ath_pci 1087 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1088 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1089 in order to use ath on everything else. 1090 1091 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1092 need to load if_ath and if_ath_pci for ath(4) operation. 1093 109420110314: 1095 As part of the replacement of sysinstall, the process of building 1096 release media has changed significantly. For details, please re-read 1097 release(7), which has been updated to reflect the new build process. 1098 109920110218: 1100 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1101 is the last available version under GPLv2. It brings a number of new 1102 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1103 4.1 and SSE 4.2), better support for powerpc64, a number of new 1104 directives, and lots of other small improvements. See the ChangeLog 1105 file in contrib/binutils for the full details. 1106 110720110218: 1108 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1109 compliant, and will now use half of hash for authentication. 1110 This will break interoperability with all stacks (including all 1111 actual FreeBSD versions) who implement 1112 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1113 authentication). 1114 The only workaround with such peers is to use another HMAC 1115 algorithm for IPsec ("phase 2") authentication. 1116 111720110207: 1118 Remove the uio_yield prototype and symbol. This function has 1119 been misnamed since it was introduced and should not be 1120 globally exposed with this name. The equivalent functionality 1121 is now available using kern_yield(curthread->td_user_pri). 1122 The function remains undocumented. 1123 112420110112: 1125 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1126 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1127 for scalar sysctls is defined but disabled. Code that needs 1128 UQUAD to pass the type checking that must compile on older 1129 systems where the define is not present can check against 1130 __FreeBSD_version >= 900030. 1131 1132 The system dialog(1) has been replaced with a new version previously 1133 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1134 with the previous version, but the libdialog associated with it has 1135 a largely incompatible API. As such, the original version of libdialog 1136 will be kept temporarily as libodialog, until its base system consumers 1137 are replaced or updated. Bump __FreeBSD_version to 900030. 1138 113920110103: 1140 If you are trying to run make universe on a -stable system, and you get 1141 the following warning: 1142 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1143 unknown. config(8) likely too old." 1144 or something similar to it, then you must upgrade your -stable system 1145 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1146 stable/8) or build the config from the latest stable/8 branch and 1147 install it on your system. 1148 1149 Prior to this date, building a current universe on 8-stable system from 1150 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1151 error in the first kernel build phase. A new config on those old 1152 systems will fix that problem for older versions of -current. 1153 115420101228: 1155 The TCP stack has been modified to allow Khelp modules to interact with 1156 it via helper hook points and store per-connection data in the TCP 1157 control block. Bump __FreeBSD_version to 900029. User space tools that 1158 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1159 be recompiled. 1160 116120101114: 1162 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1163 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1164 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1165 to take advantage of it instead of using custom implementations. This 1166 means that these drivers now no longer unconditionally advertise 1167 support for flow control but only do so if flow control is a selected 1168 media option. This was implemented in the generic support that way in 1169 order to allow flow control to be switched on and off via ifconfig(8) 1170 with the PHY specific default to typically off in order to protect 1171 from unwanted effects. Consequently, if you used flow control with 1172 one of the above mentioned drivers you now need to explicitly enable 1173 it, for example via: 1174 ifconfig bge0 media auto mediaopt flowcontrol 1175 1176 Along with the above mentioned changes generic support for setting 1177 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1178 e1000phy(4) as well as ip1000phy(4) have been converted to take 1179 advantage of it. This means that these drivers now no longer take the 1180 link0 parameter for selecting master mode but the master media option 1181 has to be used instead, for example like in the following: 1182 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1183 1184 Selection of master mode now is also available with all other PHY 1185 drivers supporting 1000baseT. 1186 118720101111: 1188 The TCP stack has received a significant update to add support for 1189 modularised congestion control and generally improve the clarity of 1190 congestion control decisions. Bump __FreeBSD_version to 900025. User 1191 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1192 sockstat) need to be recompiled. 1193 119420101002: 1195 The man(1) utility has been replaced by a new version that no longer 1196 uses /etc/manpath.config. Please consult man.conf(5) for how to 1197 migrate local entries to the new format. 1198 119920100928: 1200 The copyright strings printed by login(1) and sshd(8) at the time of a 1201 new connection have been removed to follow other operating systems and 1202 upstream sshd. 1203 120420100915: 1205 A workaround for a fixed ld bug has been removed in kernel code, 1206 so make sure that your system ld is built from sources after 1207 revision 210245 from 2010-07-19 (r211583 if building head kernel 1208 on stable/8, r211584 for stable/7; both from 2010-08-21). 1209 A symptom of incorrect ld version is different addresses for 1210 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1211 121220100913: 1213 The $ipv6_prefer variable in rc.conf(5) has been split into 1214 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1215 1216 The $ip6addrctl_policy is a variable to choose a pre-defined 1217 address selection policy set by ip6addrctl(8). A value 1218 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1219 default is "AUTO". 1220 1221 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1222 flag (see an entry of 20090926) is set on an interface with no 1223 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1224 security reason. If you want IPv6 link-local address on all 1225 interfaces by default, set this to "YES". 1226 1227 The old ipv6_prefer="YES" is equivalent to 1228 ipv6_activate_all_interfaces="YES" and 1229 ip6addrctl_policy="ipv6_prefer". 1230 123120100913: 1232 DTrace has grown support for userland tracing. Due to this, DTrace is 1233 now i386 and amd64 only. 1234 dtruss(1) is now installed by default on those systems and a new 1235 kernel module is needed for userland tracing: fasttrap. 1236 No changes to your kernel config file are necessary to enable 1237 userland tracing, but you might consider adding 'STRIP=' and 1238 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1239 to have informative userland stack traces in DTrace (ustack). 1240 124120100725: 1242 The acpi_aiboost(4) driver has been removed in favor of the new 1243 aibs(4) driver. You should update your kernel configuration file. 1244 124520100722: 1246 BSD grep has been imported to the base system and it is built by 1247 default. It is completely BSD licensed, highly GNU-compatible, uses 1248 less memory than its GNU counterpart and has a small codebase. 1249 However, it is slower than its GNU counterpart, which is mostly 1250 noticeable for larger searches, for smaller ones it is measurable 1251 but not significant. The reason is complex, the most important factor 1252 is that we lack a modern and efficient regex library and GNU 1253 overcomes this by optimizing the searches internally. Future work 1254 on improving the regex performance is planned, for the meantime, 1255 users that need better performance, can build GNU grep instead by 1256 setting the WITH_GNU_GREP knob. 1257 125820100713: 1259 Due to the import of powerpc64 support, all existing powerpc kernel 1260 configuration files must be updated with a machine directive like this: 1261 machine powerpc powerpc 1262 1263 In addition, an updated config(8) is required to build powerpc kernels 1264 after this change. 1265 126620100713: 1267 A new version of ZFS (version 15) has been merged to -HEAD. 1268 This version uses a python library for the following subcommands: 1269 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1270 For full functionality of these commands the following port must 1271 be installed: sysutils/py-zfs 1272 127320100429: 1274 'vm_page's are now hashed by physical address to an array of mutexes. 1275 Currently this is only used to serialize access to hold_count. Over 1276 time the page queue mutex will be peeled away. This changes the size 1277 of pmap on every architecture. And requires all callers of vm_page_hold 1278 and vm_page_unhold to be updated. 1279 128020100402: 1281 WITH_CTF can now be specified in src.conf (not recommended, there 1282 are some problems with static executables), make.conf (would also 1283 affect ports which do not use GNU make and do not override the 1284 compile targets) or in the kernel config (via "makeoptions 1285 WITH_CTF=yes"). 1286 When WITH_CTF was specified there before this was silently ignored, 1287 so make sure that WITH_CTF is not used in places which could lead 1288 to unwanted behavior. 1289 129020100311: 1291 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1292 to allow 32-bit compatibility on non-x86 platforms. All kernel 1293 configurations on amd64 and ia64 platforms using these options must 1294 be modified accordingly. 1295 129620100113: 1297 The utmp user accounting database has been replaced with utmpx, 1298 the user accounting interface standardized by POSIX. 1299 Unfortunately the semantics of utmp and utmpx don't match, 1300 making it practically impossible to support both interfaces. 1301 The user accounting database is used by tools like finger(1), 1302 last(1), talk(1), w(1) and ac(8). 1303 1304 All applications in the base system use utmpx. This means only 1305 local binaries (e.g. from the ports tree) may still use these 1306 utmp database files. These applications must be rebuilt to make 1307 use of utmpx. 1308 1309 After the system has been upgraded, it is safe to remove the old 1310 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1311 assuming their contents is of no importance anymore. Old wtmp 1312 databases can only be used by last(1) and ac(8) after they have 1313 been converted to the new format using wtmpcvt(1). 1314 131520100108: 1316 Introduce the kernel thread "deadlock resolver" (which can be enabled 1317 via the DEADLKRES option, see NOTES for more details) and the 1318 sleepq_type() function for sleepqueues. 1319 132020091202: 1321 The rc.firewall and rc.firewall6 were unified, and 1322 rc.firewall6 and rc.d/ip6fw were removed. 1323 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1324 variables are obsoleted. Instead, the following new rc 1325 variables are added to rc.d/ipfw: 1326 1327 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1328 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1329 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1330 1331 The meanings correspond to the relevant IPv4 variables. 1332 133320091125: 1334 8.0-RELEASE. 1335 133620091113: 1337 The default terminal emulation for syscons(4) has been changed 1338 from cons25 to xterm on all platforms except pc98. This means 1339 that the /etc/ttys file needs to be updated to ensure correct 1340 operation of applications on the console. 1341 1342 The terminal emulation style can be toggled per window by using 1343 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1344 options can be used to change the compile-time default back to 1345 cons25. 1346 1347 To prevent graphical artifacts, make sure the TERM environment 1348 variable is set to match the terminal emulation that is being 1349 performed by syscons(4). 1350 135120091109: 1352 The layout of the structure ieee80211req_scan_result has changed. 1353 Applications that require wireless scan results (e.g. ifconfig(8)) 1354 from net80211 need to be recompiled. 1355 1356 Applications such as wpa_supplicant(8) may require a full world 1357 build without using NO_CLEAN in order to get synchronized with the 1358 new structure. 1359 136020091025: 1361 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1362 There's one kernel module for each firmware. Adding "device iwnfw" 1363 to the kernel configuration file means including all three firmware 1364 images inside the kernel. If you want to include just the one for 1365 your wireless card, use the devices iwn4965fw, iwn5000fw or 1366 iwn5150fw. 1367 136820090926: 1369 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1370 into rc.d/netif. The changes are the following: 1371 1372 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1373 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1374 Note that both variables need the "inet6" keyword at the head. 1375 1376 Do not set $ipv6_network_interfaces manually if you do not 1377 understand what you are doing. It is not needed in most cases. 1378 1379 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1380 they are obsolete. 1381 1382 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1383 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1384 1385 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1386 all configured interfaces have "inet6 accept_rtadv" in the 1387 $ifconfig_IF_ipv6. These are for backward compatibility. 1388 1389 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1390 functionality of interfaces with no corresponding 1391 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1392 and the default address selection policy of ip6addrctl(8) 1393 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1394 Note that if you want to configure IPv6 functionality on the 1395 disabled interfaces after boot, first you need to clear the flag by 1396 using ifconfig(8) like: 1397 1398 ifconfig em0 inet6 -ifdisabled 1399 1400 If YES, the default address selection policy is set as 1401 IPv6-preferred. 1402 1403 The default value of $ipv6_prefer is NO. 1404 1405 4. If your system need to receive Router Advertisement messages, 1406 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1407 scripts automatically invoke rtsol(8) when the interface becomes 1408 UP. The Router Advertisement messages are used for SLAAC 1409 (State-Less Address AutoConfiguration). 1410 141120090922: 1412 802.11s D3.03 support was committed. This is incompatible with the 1413 previous code, which was based on D3.0. 1414 141520090912: 1416 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1417 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1418 control whether accepting Router Advertisement messages or not. 1419 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1420 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1421 The ifconfig(8) utility now supports these flags. 1422 142320090910: 1424 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1425 mount(8) and -a option for df(1) to see them. 1426 142720090825: 1428 The old tunable hw.bus.devctl_disable has been superseded by 1429 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1430 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1431 is 1000. 1432 143320090813: 1434 Remove the option STOP_NMI. The default action is now to use NMI only 1435 for KDB via the newly introduced function stop_cpus_hard() and 1436 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1437 143820090803: 1439 The stable/8 branch created in subversion. This corresponds to the 1440 RELENG_8 branch in CVS. 1441 144220090719: 1443 Bump the shared library version numbers for all libraries that do not 1444 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1445 __FreeBSD_version to 800105. 1446 144720090714: 1448 Due to changes in the implementation of virtual network stack support, 1449 all network-related kernel modules must be recompiled. As this change 1450 breaks the ABI, bump __FreeBSD_version to 800104. 1451 145220090713: 1453 The TOE interface to the TCP syncache has been modified to remove 1454 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1455 The cxgb driver is the only TOE consumer affected by this change, and 1456 needs to be recompiled along with the kernel. As this change breaks 1457 the ABI, bump __FreeBSD_version to 800103. 1458 145920090712: 1460 Padding has been added to struct tcpcb, sackhint and tcpstat in 1461 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1462 maintaining the ABI. However, this change breaks the ABI, so bump 1463 __FreeBSD_version to 800102. User space tools that rely on the size of 1464 any of these structs (e.g. sockstat) need to be recompiled. 1465 146620090630: 1467 The NFS_LEGACYRPC option has been removed along with the old kernel 1468 RPC implementation that this option selected. Kernel configurations 1469 may need to be adjusted. 1470 147120090629: 1472 The network interface device nodes at /dev/net/<interface> have been 1473 removed. All ioctl operations can be performed the normal way using 1474 routing sockets. The kqueue functionality can generally be replaced 1475 with routing sockets. 1476 147720090628: 1478 The documentation from the FreeBSD Documentation Project (Handbook, 1479 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1480 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1481 148220090624: 1483 The ABI of various structures related to the SYSV IPC API have been 1484 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1485 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1486 800100. 1487 148820090622: 1489 Layout of struct vnet has changed as routing related variables were 1490 moved to their own Vimage module. Modules need to be recompiled. Bump 1491 __FreeBSD_version to 800099. 1492 149320090619: 1494 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1495 respectively. As long as no more than 16 groups per process are used, 1496 no changes should be visible. When more than 16 groups are used, old 1497 binaries may fail if they call getgroups() or getgrouplist() with 1498 statically sized storage. Recompiling will work around this, but 1499 applications should be modified to use dynamically allocated storage 1500 for group arrays as POSIX.1-2008 does not cap an implementation's 1501 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1502 1503 NFS and portalfs mounts may also be affected as the list of groups is 1504 truncated to 16. Users of NFS who use more than 16 groups, should 1505 take care that negative group permissions are not used on the exported 1506 file systems as they will not be reliable unless a GSSAPI based 1507 authentication method is used. 1508 150920090616: 1510 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1511 option compiles in the support for adaptive spinning for lockmgrs 1512 which want to enable it. The lockinit() function now accepts the flag 1513 LK_ADAPTIVE in order to make the lock object subject to adaptive 1514 spinning when both held in write and read mode. 1515 151620090613: 1517 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1518 changed. User applications that use this ioctl need to be rebuilt. 1519 152020090611: 1521 The layout of struct thread has changed. Kernel and modules need to 1522 be rebuilt. 1523 152420090608: 1525 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1526 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1527 152820090602: 1529 window(1) has been removed from the base system. It can now be 1530 installed from ports. The port is called misc/window. 1531 153220090601: 1533 The way we are storing and accessing `routing table' entries has 1534 changed. Programs reading the FIB, like netstat, need to be 1535 re-compiled. 1536 153720090601: 1538 A new netisr implementation has been added for FreeBSD 8. Network 1539 file system modules, such as igmp, ipdivert, and others, should be 1540 rebuilt. 1541 Bump __FreeBSD_version to 800096. 1542 154320090530: 1544 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1545 more valid. 1546 154720090530: 1548 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1549 Bump __FreeBSD_version to 800094. 1550 155120090529: 1552 Add mnt_xflag field to 'struct mount'. File system modules need to be 1553 rebuilt. 1554 Bump __FreeBSD_version to 800093. 1555 155620090528: 1557 The compiling option ADAPTIVE_SX has been retired while it has been 1558 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1559 The KPI for sx_init_flags() changes as accepting flags: 1560 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1561 been introduced in order to handle the reversed logic. 1562 Bump __FreeBSD_version to 800092. 1563 156420090527: 1565 Add support for hierarchical jails. Remove global securelevel. 1566 Bump __FreeBSD_version to 800091. 1567 156820090523: 1569 The layout of struct vnet_net has changed, therefore modules 1570 need to be rebuilt. 1571 Bump __FreeBSD_version to 800090. 1572 157320090523: 1574 The newly imported zic(8) produces a new format in the output. Please 1575 run tzsetup(8) to install the newly created data to /etc/localtime. 1576 157720090520: 1578 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1579 hw.usb.* and is now consistent again with previous releases. 1580 158120090520: 1582 802.11 monitor mode support was revised and driver api's were changed. 1583 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1584 of DLT_IEEE802_11. No user-visible data structures were changed but 1585 applications that use DLT_IEEE802_11 may require changes. 1586 Bump __FreeBSD_version to 800088. 1587 158820090430: 1589 The layout of the following structs has changed: sysctl_oid, 1590 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1591 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1592 panics may be experienced. World rebuild is required for 1593 correctly checking networking state from userland. 1594 Bump __FreeBSD_version to 800085. 1595 159620090429: 1597 MLDv2 and Source-Specific Multicast (SSM) have been merged 1598 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1599 The implementation of SSM within FreeBSD's IPv6 stack closely 1600 follows the IPv4 implementation. 1601 1602 For kernel developers: 1603 1604 * The most important changes are that the ip6_output() and 1605 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1606 and this lock has been downgraded to a non-recursive mutex. 1607 1608 * As with the changes to the IPv4 stack to support SSM, filtering 1609 of inbound multicast traffic must now be performed by transport 1610 protocols within the IPv6 stack. This does not apply to TCP and 1611 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1612 1613 * The KPIs used by IPv6 multicast are similar to those used by 1614 the IPv4 stack, with the following differences: 1615 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1616 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1617 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1618 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1619 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1620 for MLDv1 have an additional 'timer' argument which is used to 1621 jitter the initial membership report for the solicited-node 1622 multicast membership on-link. 1623 * This is not strictly needed for MLDv2, which already jitters 1624 its report transmissions. However, the 'timer' argument is 1625 preserved in case MLDv1 is active on the interface. 1626 1627 * The KAME linked-list based IPv6 membership implementation has 1628 been refactored to use a vector similar to that used by the IPv4 1629 stack. 1630 Code which maintains a list of its own multicast memberships 1631 internally, e.g. carp, has been updated to reflect the new 1632 semantics. 1633 1634 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1635 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1636 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1637 implementation constraint which needs to be addressed in HEAD. 1638 1639 For application developers: 1640 1641 * The changes are broadly similar to those made for the IPv4 1642 stack. 1643 1644 * The use of IPv4 and IPv6 multicast socket options on the same 1645 socket, using mapped addresses, HAS NOT been tested or supported. 1646 1647 * There are a number of issues with the implementation of various 1648 IPv6 multicast APIs which need to be resolved in the API surface 1649 before the implementation is fully compatible with KAME userland 1650 use, and these are mostly to do with interface index treatment. 1651 1652 * The literature available discusses the use of either the delta / ASM 1653 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1654 using setsourcefilter(3)/getsourcefilter(3). For more information 1655 please refer to RFC 3768, 'Socket Interface Extensions for 1656 Multicast Source Filters'. 1657 1658 * Applications which use the published RFC 3678 APIs should be fine. 1659 1660 For systems administrators: 1661 1662 * The mtest(8) utility has been refactored to support IPv6, in 1663 addition to IPv4. Interface addresses are no longer accepted 1664 as arguments, their names must be used instead. The utility 1665 will map the interface name to its first IPv4 address as 1666 returned by getifaddrs(3). 1667 1668 * The ifmcstat(8) utility has also been updated to print the MLDv2 1669 endpoint state and source filter lists via sysctl(3). 1670 1671 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1672 loopback of IPv6 multicast datagrams by default; it defaults to 1 1673 to preserve the existing behaviour. Disabling multicast loopback is 1674 recommended for optimal system performance. 1675 1676 * The IPv6 MROUTING code has been changed to examine this sysctl 1677 instead of attempting to perform a group lookup before looping 1678 back forwarded datagrams. 1679 1680 Bump __FreeBSD_version to 800084. 1681 168220090422: 1683 Implement low-level Bluetooth HCI API. 1684 Bump __FreeBSD_version to 800083. 1685 168620090419: 1687 The layout of struct malloc_type, used by modules to register new 1688 memory allocation types, has changed. Most modules will need to 1689 be rebuilt or panics may be experienced. 1690 Bump __FreeBSD_version to 800081. 1691 169220090415: 1693 Anticipate overflowing inp_flags - add inp_flags2. 1694 This changes most offsets in inpcb, so checking v4 connection 1695 state will require a world rebuild. 1696 Bump __FreeBSD_version to 800080. 1697 169820090415: 1699 Add an llentry to struct route and struct route_in6. Modules 1700 embedding a struct route will need to be recompiled. 1701 Bump __FreeBSD_version to 800079. 1702 170320090414: 1704 The size of rt_metrics_lite and by extension rtentry has changed. 1705 Networking administration apps will need to be recompiled. 1706 The route command now supports show as an alias for get, weighting 1707 of routes, sticky and nostick flags to alter the behavior of stateful 1708 load balancing. 1709 Bump __FreeBSD_version to 800078. 1710 171120090408: 1712 Do not use Giant for kbdmux(4) locking. This is wrong and 1713 apparently causing more problems than it solves. This will 1714 re-open the issue where interrupt handlers may race with 1715 kbdmux(4) in polling mode. Typical symptoms include (but 1716 not limited to) duplicated and/or missing characters when 1717 low level console functions (such as gets) are used while 1718 interrupts are enabled (for example geli password prompt, 1719 mountroot prompt etc.). Disabling kbdmux(4) may help. 1720 172120090407: 1722 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1723 kernel modules referencing any of the above need to be recompiled. 1724 Bump __FreeBSD_version to 800075. 1725 172620090320: 1727 GEOM_PART has become the default partition slicer for storage devices, 1728 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1729 introduces some changes: 1730 1731 MSDOS/EBR: the devices created from MSDOS extended partition entries 1732 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1733 to devices with offset-based names. fstabs may need to be modified. 1734 1735 BSD: the "geometry does not match label" warning is harmless in most 1736 cases but it points to problems in file system misalignment with 1737 disk geometry. The "c" partition is now implicit, covers the whole 1738 top-level drive and cannot be (mis)used by users. 1739 1740 General: Kernel dumps are now not allowed to be written to devices 1741 whose partition types indicate they are meant to be used for file 1742 systems (or, in case of MSDOS partitions, as something else than 1743 the "386BSD" type). 1744 1745 Most of these changes date approximately from 200812. 1746 174720090319: 1748 The uscanner(4) driver has been removed from the kernel. This follows 1749 Linux removing theirs in 2.6 and making libusb the default interface 1750 (supported by sane). 1751 175220090319: 1753 The multicast forwarding code has been cleaned up. netstat(1) 1754 only relies on KVM now for printing bandwidth upcall meters. 1755 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1756 ip6_mroute_mod respectively. The config(5) options for statically 1757 compiling this code remain the same, i.e. 'options MROUTING'. 1758 175920090315: 1760 Support for the IFF_NEEDSGIANT network interface flag has been 1761 removed, which means that non-MPSAFE network device drivers are no 1762 longer supported. In particular, if_ar, if_sr, and network device 1763 drivers from the old (legacy) USB stack can no longer be built or 1764 used. 1765 176620090313: 1767 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1768 a bunch of new language catalog files have also been added. 1769 This means that some common libc messages are now localized and 1770 they depend on the LC_MESSAGES environmental variable. 1771 177220090313: 1773 The k8temp(4) driver has been renamed to amdtemp(4) since 1774 support for Family 10 and Family 11 CPU families was added. 1775 177620090309: 1777 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1778 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1779 1780 For kernel developers, the most important changes are that the 1781 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1782 and this lock has been downgraded to a non-recursive mutex. 1783 1784 Transport protocols (UDP, Raw IP) are now responsible for filtering 1785 inbound multicast traffic according to group membership and source 1786 filters. The imo_multicast_filter() KPI exists for this purpose. 1787 Transports which do not use multicast (SCTP, TCP) already reject 1788 multicast by default. Forwarding and receive performance may improve 1789 as a mutex acquisition is no longer needed in the ip_input() 1790 low-level input path. in_addmulti() and in_delmulti() are shimmed 1791 to new KPIs which exist to support SSM in-kernel. 1792 1793 For application developers, it is recommended that loopback of 1794 multicast datagrams be disabled for best performance, as this 1795 will still cause the lock to be taken for each looped-back 1796 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1797 be tuned to 0 to disable loopback by default; it defaults to 1 1798 to preserve the existing behaviour. 1799 1800 For systems administrators, to obtain best performance with 1801 multicast reception and multiple groups, it is always recommended 1802 that a card with a suitably precise hash filter is used. Hash 1803 collisions will still result in the lock being taken within the 1804 transport protocol input path to check group membership. 1805 1806 If deploying FreeBSD in an environment with IGMP snooping switches, 1807 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1808 enabled; this forces 224.0.0.0/24 group membership to be announced 1809 via IGMP. 1810 1811 The size of 'struct igmpstat' has changed; netstat needs to be 1812 recompiled to reflect this. 1813 Bump __FreeBSD_version to 800070. 1814 181520090309: 1816 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1817 updated to use it. This requires a buildworld/installworld in order to 1818 update the library and dependencies (usbconfig, etc). Its advisable to 1819 rebuild all ports which uses libusb. More specific directions are given 1820 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1821 libusb are no longer required and can be removed. 1822 182320090302: 1824 A workaround is committed to allow the creation of System V shared 1825 memory segment of size > 2 GB on the 64-bit architectures. 1826 Due to a limitation of the existing ABI, the shm_segsz member 1827 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1828 wrong for large segments. Note that limits must be explicitly 1829 raised to allow such segments to be created. 1830 183120090301: 1832 The layout of struct ifnet has changed, requiring a rebuild of all 1833 network device driver modules. 1834 183520090227: 1836 The /dev handling for the new USB stack has changed, a 1837 buildworld/installworld is required for libusb20. 1838 183920090223: 1840 The new USB2 stack has now been permanently moved in and all kernel and 1841 module names reverted to their previous values (eg, usb, ehci, ohci, 1842 ums, ...). The old usb stack can be compiled in by prefixing the name 1843 with the letter 'o', the old usb modules have been removed. 1844 Updating entry 20090216 for xorg and 20090215 for libmap may still 1845 apply. 1846 184720090217: 1848 The rc.conf(5) option if_up_delay has been renamed to 1849 defaultroute_delay to better reflect its purpose. If you have 1850 customized this setting in /etc/rc.conf you need to update it to 1851 use the new name. 1852 185320090216: 1854 xorg 7.4 wants to configure its input devices via hald which does not 1855 yet work with USB2. If the keyboard/mouse does not work in xorg then 1856 add 1857 Option "AllowEmptyInput" "off" 1858 to your ServerLayout section. This will cause X to use the configured 1859 kbd and mouse sections from your xorg.conf. 1860 186120090215: 1862 The GENERIC kernels for all architectures now default to the new USB2 1863 stack. No kernel config options or code have been removed so if a 1864 problem arises please report it and optionally revert to the old USB 1865 stack. If you are loading USB kernel modules or have a custom kernel 1866 that includes GENERIC then ensure that usb names are also changed over, 1867 eg uftdi -> usb2_serial_ftdi. 1868 1869 Older programs linked against the ports libusb 0.1 need to be 1870 redirected to the new stack's libusb20. /etc/libmap.conf can 1871 be used for this: 1872 # Map old usb library to new one for usb2 stack 1873 libusb-0.1.so.8 libusb20.so.1 1874 187520090209: 1876 All USB ethernet devices now attach as interfaces under the name ueN 1877 (eg. ue0). This is to provide a predictable name as vendors often 1878 change usb chipsets in a product without notice. 1879 188020090203: 1881 The ichsmb(4) driver has been changed to require SMBus slave 1882 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1883 All of the other SMBus controller drivers require left-justified 1884 slave addresses, so this change makes all the drivers provide the 1885 same interface. 1886 188720090201: 1888 INET6 statistics (struct ip6stat) was updated. 1889 netstat(1) needs to be recompiled. 1890 189120090119: 1892 NTFS has been removed from GENERIC kernel on amd64 to match 1893 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1894 will load ntfs.ko module automatically when NTFS support is 1895 actually needed, unless ntfs.ko is not installed or security 1896 level prohibits loading kernel modules. If either is the case, 1897 "options NTFS" has to be added into kernel config. 1898 189920090115: 1900 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1901 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1902 800061. User space tools that rely on the size of struct tcpcb in 1903 tcp_var.h (e.g. sockstat) need to be recompiled. 1904 190520081225: 1906 ng_tty(4) module updated to match the new TTY subsystem. 1907 Due to API change, user-level applications must be updated. 1908 New API support added to mpd5 CVS and expected to be present 1909 in next mpd5.3 release. 1910 191120081219: 1912 With __FreeBSD_version 800060 the makefs tool is part of 1913 the base system (it was a port). 1914 191520081216: 1916 The afdata and ifnet locks have been changed from mutexes to 1917 rwlocks, network modules will need to be re-compiled. 1918 191920081214: 1920 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1921 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1922 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1923 architecture and 40 bytes on 64-bit architecture. The userland 1924 applications "arp" and "ndp" have been updated accordingly. 1925 The output from "netstat -r" shows only routing entries and 1926 none of the L2 information. 1927 192820081130: 1929 __FreeBSD_version 800057 marks the switchover from the 1930 binary ath hal to source code. Users must add the line: 1931 1932 options AH_SUPPORT_AR5416 1933 1934 to their kernel config files when specifying: 1935 1936 device ath_hal 1937 1938 The ath_hal module no longer exists; the code is now compiled 1939 together with the driver in the ath module. It is now 1940 possible to tailor chip support (i.e. reduce the set of chips 1941 and thereby the code size); consult ath_hal(4) for details. 1942 194320081121: 1944 __FreeBSD_version 800054 adds memory barriers to 1945 <machine/atomic.h>, new interfaces to ifnet to facilitate 1946 multiple hardware transmit queues for cards that support 1947 them, and a lock-less ring-buffer implementation to 1948 enable drivers to more efficiently manage queueing of 1949 packets. 1950 195120081117: 1952 A new version of ZFS (version 13) has been merged to -HEAD. 1953 This version has zpool attribute "listsnapshots" off by 1954 default, which means "zfs list" does not show snapshots, 1955 and is the same as Solaris behavior. 1956 195720081028: 1958 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1959 196020081009: 1961 The uhci, ohci, ehci and slhci USB Host controller drivers have 1962 been put into separate modules. If you load the usb module 1963 separately through loader.conf you will need to load the 1964 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1965 controller add the following to loader.conf: 1966 1967 uhci_load="YES" 1968 ehci_load="YES" 1969 197020081009: 1971 The ABI used by the PMC toolset has changed. Please keep 1972 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1973 sync. 1974 197520081009: 1976 atapci kernel module now includes only generic PCI ATA 1977 driver. AHCI driver moved to ataahci kernel module. 1978 All vendor-specific code moved into separate kernel modules: 1979 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1980 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1981 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1982 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1983 198420080820: 1985 The TTY subsystem of the kernel has been replaced by a new 1986 implementation, which provides better scalability and an 1987 improved driver model. Most common drivers have been migrated to 1988 the new TTY subsystem, while others have not. The following 1989 drivers have not yet been ported to the new TTY layer: 1990 1991 PCI/ISA: 1992 cy, digi, rc, rp, sio 1993 1994 USB: 1995 ubser, ucycom 1996 1997 Line disciplines: 1998 ng_h4, ng_tty, ppp, sl, snp 1999 2000 Adding these drivers to your kernel configuration file shall 2001 cause compilation to fail. 2002 200320080818: 2004 ntpd has been upgraded to 4.2.4p5. 2005 200620080801: 2007 OpenSSH has been upgraded to 5.1p1. 2008 2009 For many years, FreeBSD's version of OpenSSH preferred DSA 2010 over RSA for host and user authentication keys. With this 2011 upgrade, we've switched to the vendor's default of RSA over 2012 DSA. This may cause upgraded clients to warn about unknown 2013 host keys even for previously known hosts. Users should 2014 follow the usual procedure for verifying host keys before 2015 accepting the RSA key. 2016 2017 This can be circumvented by setting the "HostKeyAlgorithms" 2018 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2019 command line. 2020 2021 Please note that the sequence of keys offered for 2022 authentication has been changed as well. You may want to 2023 specify IdentityFile in a different order to revert this 2024 behavior. 2025 202620080713: 2027 The sio(4) driver has been removed from the i386 and amd64 2028 kernel configuration files. This means uart(4) is now the 2029 default serial port driver on those platforms as well. 2030 2031 To prevent collisions with the sio(4) driver, the uart(4) driver 2032 uses different names for its device nodes. This means the 2033 onboard serial port will now most likely be called "ttyu0" 2034 instead of "ttyd0". You may need to reconfigure applications to 2035 use the new device names. 2036 2037 When using the serial port as a boot console, be sure to update 2038 /boot/device.hints and /etc/ttys before booting the new kernel. 2039 If you forget to do so, you can still manually specify the hints 2040 at the loader prompt: 2041 2042 set hint.uart.0.at="isa" 2043 set hint.uart.0.port="0x3F8" 2044 set hint.uart.0.flags="0x10" 2045 set hint.uart.0.irq="4" 2046 boot -s 2047 204820080609: 2049 The gpt(8) utility has been removed. Use gpart(8) to partition 2050 disks instead. 2051 205220080603: 2053 The version that Linuxulator emulates was changed from 2.4.2 2054 to 2.6.16. If you experience any problems with Linux binaries 2055 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2056 if it fixes the problem contact emulation mailing list. 2057 205820080525: 2059 ISDN4BSD (I4B) was removed from the src tree. You may need to 2060 update a your kernel configuration and remove relevant entries. 2061 206220080509: 2063 I have checked in code to support multiple routing tables. 2064 See the man pages setfib(1) and setfib(2). 2065 This is a hopefully backwards compatible version, 2066 but to make use of it you need to compile your kernel 2067 with options ROUTETABLES=2 (or more up to 16). 2068 206920080420: 2070 The 802.11 wireless support was redone to enable multi-bss 2071 operation on devices that are capable. The underlying device 2072 is no longer used directly but instead wlanX devices are 2073 cloned with ifconfig. This requires changes to rc.conf files. 2074 For example, change: 2075 ifconfig_ath0="WPA DHCP" 2076 to 2077 wlans_ath0=wlan0 2078 ifconfig_wlan0="WPA DHCP" 2079 see rc.conf(5) for more details. In addition, mergemaster of 2080 /etc/rc.d is highly recommended. Simultaneous update of userland 2081 and kernel wouldn't hurt either. 2082 2083 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2084 modules were merged into the base wlan module. All references 2085 to these modules (e.g. in kernel config files) must be removed. 2086 208720080408: 2088 psm(4) has gained write(2) support in native operation level. 2089 Arbitrary commands can be written to /dev/psm%d and status can 2090 be read back from it. Therefore, an application is responsible 2091 for status validation and error recovery. It is a no-op in 2092 other operation levels. 2093 209420080312: 2095 Support for KSE threading has been removed from the kernel. To 2096 run legacy applications linked against KSE libmap.conf may 2097 be used. The following libmap.conf may be used to ensure 2098 compatibility with any prior release: 2099 2100 libpthread.so.1 libthr.so.1 2101 libpthread.so.2 libthr.so.2 2102 libkse.so.3 libthr.so.3 2103 210420080301: 2105 The layout of struct vmspace has changed. This affects libkvm 2106 and any executables that link against libkvm and use the 2107 kvm_getprocs() function. In particular, but not exclusively, 2108 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2109 The effects are minimal, but it's advisable to upgrade world 2110 nonetheless. 2111 211220080229: 2113 The latest em driver no longer has support in it for the 2114 82575 adapter, this is now moved to the igb driver. The 2115 split was done to make new features that are incompatible 2116 with older hardware easier to do. 2117 211820080220: 2119 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2120 likewise the kernel option is now GEOM_LINUX_LVM. 2121 212220080211: 2123 The default NFS mount mode has changed from UDP to TCP for 2124 increased reliability. If you rely on (insecurely) NFS 2125 mounting across a firewall you may need to update your 2126 firewall rules. 2127 212820080208: 2129 Belatedly note the addition of m_collapse for compacting 2130 mbuf chains. 2131 213220080126: 2133 The fts(3) structures have been changed to use adequate 2134 integer types for their members and so to be able to cope 2135 with huge file trees. The old fts(3) ABI is preserved 2136 through symbol versioning in libc, so third-party binaries 2137 using fts(3) should still work, although they will not take 2138 advantage of the extended types. At the same time, some 2139 third-party software might fail to build after this change 2140 due to unportable assumptions made in its source code about 2141 fts(3) structure members. Such software should be fixed 2142 by its vendor or, in the worst case, in the ports tree. 2143 FreeBSD_version 800015 marks this change for the unlikely 2144 case that a portable fix is impossible. 2145 214620080123: 2147 To upgrade to -current after this date, you must be running 2148 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2149 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2150 215120071128: 2152 The ADAPTIVE_GIANT kernel option has been retired because its 2153 functionality is the default now. 2154 215520071118: 2156 The AT keyboard emulation of sunkbd(4) has been turned on 2157 by default. In order to make the special symbols of the Sun 2158 keyboards driven by sunkbd(4) work under X these now have 2159 to be configured the same way as Sun USB keyboards driven 2160 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2161 2162 Option "XkbLayout" "us" 2163 Option "XkbRules" "xorg" 2164 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2165 216620071024: 2167 It has been decided that it is desirable to provide ABI 2168 backwards compatibility to the FreeBSD 4/5/6 versions of the 2169 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2170 broken with the introduction of PCI domain support (see the 2171 20070930 entry). Unfortunately, this required the ABI of 2172 PCIOCGETCONF to be broken again in order to be able to 2173 provide backwards compatibility to the old version of that 2174 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2175 again. As for prominent ports this affects neither pciutils 2176 nor xorg-server this time, the hal port needs to be rebuilt 2177 however. 2178 217920071020: 2180 The misnamed kthread_create() and friends have been renamed 2181 to kproc_create() etc. Many of the callers already 2182 used kproc_start().. 2183 I will return kthread_create() and friends in a while 2184 with implementations that actually create threads, not procs. 2185 Renaming corresponds with version 800002. 2186 218720071010: 2188 RELENG_7 branched. 2189 2190COMMON ITEMS: 2191 2192 General Notes 2193 ------------- 2194 Avoid using make -j when upgrading. While generally safe, there are 2195 sometimes problems using -j to upgrade. If your upgrade fails with 2196 -j, please try again without -j. From time to time in the past there 2197 have been problems using -j with buildworld and/or installworld. This 2198 is especially true when upgrading between "distant" versions (eg one 2199 that cross a major release boundary or several minor releases, or when 2200 several months have passed on the -current branch). 2201 2202 Sometimes, obscure build problems are the result of environment 2203 poisoning. This can happen because the make utility reads its 2204 environment when searching for values for global variables. To run 2205 your build attempts in an "environmental clean room", prefix all make 2206 commands with 'env -i '. See the env(1) manual page for more details. 2207 2208 When upgrading from one major version to another it is generally best 2209 to upgrade to the latest code in the currently installed branch first, 2210 then do an upgrade to the new branch. This is the best-tested upgrade 2211 path, and has the highest probability of being successful. Please try 2212 this approach before reporting problems with a major version upgrade. 2213 2214 When upgrading a live system, having a root shell around before 2215 installing anything can help undo problems. Not having a root shell 2216 around can lead to problems if pam has changed too much from your 2217 starting point to allow continued authentication after the upgrade. 2218 2219 ZFS notes 2220 --------- 2221 When upgrading the boot ZFS pool to a new version, always follow 2222 these two steps: 2223 2224 1.) recompile and reinstall the ZFS boot loader and boot block 2225 (this is part of "make buildworld" and "make installworld") 2226 2227 2.) update the ZFS boot block on your boot drive 2228 2229 The following example updates the ZFS boot block on the first 2230 partition (freebsd-boot) of a GPT partitioned drive ad0: 2231 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2232 2233 Non-boot pools do not need these updates. 2234 2235 To build a kernel 2236 ----------------- 2237 If you are updating from a prior version of FreeBSD (even one just 2238 a few days old), you should follow this procedure. It is the most 2239 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2240 2241 make kernel-toolchain 2242 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2243 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2244 2245 To test a kernel once 2246 --------------------- 2247 If you just want to boot a kernel once (because you are not sure 2248 if it works, or if you want to boot a known bad kernel to provide 2249 debugging information) run 2250 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2251 nextboot -k testkernel 2252 2253 To just build a kernel when you know that it won't mess you up 2254 -------------------------------------------------------------- 2255 This assumes you are already running a CURRENT system. Replace 2256 ${arch} with the architecture of your machine (e.g. "i386", 2257 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2258 2259 cd src/sys/${arch}/conf 2260 config KERNEL_NAME_HERE 2261 cd ../compile/KERNEL_NAME_HERE 2262 make depend 2263 make 2264 make install 2265 2266 If this fails, go to the "To build a kernel" section. 2267 2268 To rebuild everything and install it on the current system. 2269 ----------------------------------------------------------- 2270 # Note: sometimes if you are running current you gotta do more than 2271 # is listed here if you are upgrading from a really old current. 2272 2273 <make sure you have good level 0 dumps> 2274 make buildworld 2275 make kernel KERNCONF=YOUR_KERNEL_HERE 2276 [1] 2277 <reboot in single user> [3] 2278 mergemaster -p [5] 2279 make installworld 2280 mergemaster -i [4] 2281 make delete-old [6] 2282 <reboot> 2283 2284 To cross-install current onto a separate partition 2285 -------------------------------------------------- 2286 # In this approach we use a separate partition to hold 2287 # current's root, 'usr', and 'var' directories. A partition 2288 # holding "/", "/usr" and "/var" should be about 2GB in 2289 # size. 2290 2291 <make sure you have good level 0 dumps> 2292 <boot into -stable> 2293 make buildworld 2294 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2295 <maybe newfs current's root partition> 2296 <mount current's root partition on directory ${CURRENT_ROOT}> 2297 make installworld DESTDIR=${CURRENT_ROOT} 2298 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2299 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2300 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2301 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2302 <reboot into current> 2303 <do a "native" rebuild/install as described in the previous section> 2304 <maybe install compatibility libraries from ports/misc/compat*> 2305 <reboot> 2306 2307 2308 To upgrade in-place from stable to current 2309 ---------------------------------------------- 2310 <make sure you have good level 0 dumps> 2311 make buildworld [9] 2312 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2313 [1] 2314 <reboot in single user> [3] 2315 mergemaster -p [5] 2316 make installworld 2317 mergemaster -i [4] 2318 make delete-old [6] 2319 <reboot> 2320 2321 Make sure that you've read the UPDATING file to understand the 2322 tweaks to various things you need. At this point in the life 2323 cycle of current, things change often and you are on your own 2324 to cope. The defaults can also change, so please read ALL of 2325 the UPDATING entries. 2326 2327 Also, if you are tracking -current, you must be subscribed to 2328 freebsd-current@freebsd.org. Make sure that before you update 2329 your sources that you have read and understood all the recent 2330 messages there. If in doubt, please track -stable which has 2331 much fewer pitfalls. 2332 2333 [1] If you have third party modules, such as vmware, you 2334 should disable them at this point so they don't crash your 2335 system on reboot. 2336 2337 [3] From the bootblocks, boot -s, and then do 2338 fsck -p 2339 mount -u / 2340 mount -a 2341 cd src 2342 adjkerntz -i # if CMOS is wall time 2343 Also, when doing a major release upgrade, it is required that 2344 you boot into single user mode to do the installworld. 2345 2346 [4] Note: This step is non-optional. Failure to do this step 2347 can result in a significant reduction in the functionality of the 2348 system. Attempting to do it by hand is not recommended and those 2349 that pursue this avenue should read this file carefully, as well 2350 as the archives of freebsd-current and freebsd-hackers mailing lists 2351 for potential gotchas. The -U option is also useful to consider. 2352 See mergemaster(8) for more information. 2353 2354 [5] Usually this step is a noop. However, from time to time 2355 you may need to do this if you get unknown user in the following 2356 step. It never hurts to do it all the time. You may need to 2357 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2358 install) after the buildworld before this step if you last updated 2359 from current before 20130425 or from -stable before 20130430. 2360 2361 [6] This only deletes old files and directories. Old libraries 2362 can be deleted by "make delete-old-libs", but you have to make 2363 sure that no program is using those libraries anymore. 2364 2365 [8] In order to have a kernel that can run the 4.x binaries needed to 2366 do an installworld, you must include the COMPAT_FREEBSD4 option in 2367 your kernel. Failure to do so may leave you with a system that is 2368 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2369 required to run the 5.x binaries on more recent kernels. And so on 2370 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2371 2372 Make sure that you merge any new devices from GENERIC since the 2373 last time you updated your kernel config file. 2374 2375 [9] When checking out sources, you must include the -P flag to have 2376 cvs prune empty directories. 2377 2378 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2379 "?=" instead of the "=" assignment operator, so that buildworld can 2380 override the CPUTYPE if it needs to. 2381 2382 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2383 not on the command line, or in /etc/make.conf. buildworld will 2384 warn if it is improperly defined. 2385FORMAT: 2386 2387This file contains a list, in reverse chronological order, of major 2388breakages in tracking -current. It is not guaranteed to be a complete 2389list of such breakages, and only contains entries since October 10, 2007. 2390If you need to see UPDATING entries from before that date, you will need 2391to fetch an UPDATING file from an older FreeBSD release. 2392 2393Copyright information: 2394 2395Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2396 2397Redistribution, publication, translation and use, with or without 2398modification, in full or in part, in any form or format of this 2399document are permitted without further permission from the author. 2400 2401THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2402IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2403WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2404DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2405INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2406(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2407SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2408HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2409STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2410IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2411POSSIBILITY OF SUCH DAMAGE. 2412 2413Contact Warner Losh if you have any questions about your use of 2414this document. 2415 2416$FreeBSD: releng/10.3/UPDATING 322344 2017-08-10 06:59:43Z delphij $ 2417