UPDATING revision 320912
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 1920170712 p20 FreeBSD-SA-17:05.heimdal 20 FreeBSD-EN-17:06.hyperv 21 22 Fix heimdal KDC-REP service name validation vulnerability [SA-17:05] 23 24 Boot compatibility improvements with Azure VMs. [EN-17:06] 25 2620170427 p19 FreeBSD-SA-17:04.ipfilter 27 28 Fix ipfilter(4) fragment handling panic. [SA-17:04] 29 3020170412 p18 FreeBSD-SA-17:03.ntp 31 FreeBSD-EN-17:05.xen 32 33 Fix multiple vulnerabilities of ntp. [SA-17:03] 34 35 Xen migration enhancements. [EN-17:05] 36 3720170223 p17 FreeBSD-SA-17:02.openssl 38 39 Fix OpenSSL RC4_MD5 cipher vulnerability. 40 4120170111 p16 FreeBSD-SA-17:01.openssh 42 43 Fix multiple vulnerabilities of OpenSSH. 44 4520161222 p15 FreeBSD-SA-16:39.ntp 46 47 Fix multiple vulnerabilities of ntp. 48 4920161208 p14 FreeBSD-SA-16:37.libc [revised] 50 51 Fix regressions introduced by SA-16:37.libc. 52 5320161206 p13 FreeBSD-SA-16:36.telnetd 54 FreeBSD-SA-16:37.libc 55 FreeBSD-SA-16:38.bhyve 56 FreeBSD-EN-16:19.tzcode 57 FreeBSD-EN-16:20.tzdata 58 59 Fix possible login(1) argument injection in telnetd(8). [SA-16:36] 60 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37] 61 Fix possible escape from bhyve(8) virtual machine. [SA-16:38] 62 Fix warnings about valid time zone abbreviations. [EN-16:19] 63 Update timezone database information. [EN-16:20] 64 6520161102 p12 FreeBSD-SA-16:33.openssh 66 FreeBSD-SA-16:35.openssl 67 68 Fix OpenSSH remote Denial of Service vulnerability. [SA-16:33] 69 70 Fix OpenSSL remote DoS vulnerability. [SA-16:35] 71 7220161025 p11 FreeBSD-SA-16:15.sysarch [revised] 73 FreeBSD-EN-16:17.vm 74 75 Fix incorrect argument validation in sysarch(2). [SA-16:15] 76 Fix virtual memory subsystem bugs. [EN-16:17] 77 7820161010 p10 FreeBSD-SA-16:29.bspatch 79 FreeBSD-SA-16:30.portsnap 80 FreeBSD-SA-16:31.libarchive 81 82 Fix bspatch heap overflow vulnerability. [SA-16:29] 83 84 Fix multiple portsnap vulnerabilities. [SA-16:30] 85 86 Fix multiple libarchive vulnerabilities. [SA-16:31] 87 8820160926 p9 FreeBSD-SA-16:26.openssl [revised] 89 90 Fix OpenSSL regression introduced in SA-16:26. 91 9220160923 p8 FreeBSD-SA-16:26.openssl 93 94 Fix multiple OpenSSL vulnerabilitites. 95 9620160811 p7 FreeBSD-EN-16:10.dhclient 97 FreeBSD-EN-16:11.vmbus 98 FreeBSD-EN-16:12.hv_storvsc 99 FreeBSD-EN-16:13.vmbus 100 FreeBSD-EN-16:14.hv_storvsc 101 FreeBSD-EN-16:15.vmbus 102 FreeBSD-EN-16:16.hv_storvsc 103 104 Fix handling of unknown options from a DHCP server. [EN-16:10] 105 Fix a panic in hv_vmbus(4). [EN-16:11] 106 Fix missing hotplugged disk in hv_storvsc(4). [EN-16:12] 107 Fix the timecounter emulation in hv_vmbus(4). [EN-16:13] 108 Fix callout(9) handling in hv_storvsc(4). [EN-16:14] 109 Fix memory allocation issues in hv_vmbus(4). [EN-16:15] 110 Fix SCSI command handling in hv_storvsc(4). [EN-16:16] 111 11220160725 p6 FreeBSD-SA-16:25.bspatch 113 FreeBSD-EN-16:09.freebsd-update 114 115 Fix bspatch heap overflow vulnerability. [SA-16:25] 116 117 Fix freebsd-update(8) support of FreeBSD 11.0 release 118 distribution. [EN-16:09] 119 12020160604 p5 FreeBSD-SA-16:24.ntp 121 122 Fix multiple vulnerabilities of ntp. 123 12420160531 p4 FreeBSD-SA-16:20.linux 125 FreeBSD-SA-16:21.43bsd 126 FreeBSD-SA-16:22.libarchive 127 128 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 129 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 130 Fix directory traversal in cpio(1). [SA-16:22] 131 132 13320160517 p3 FreeBSD-SA-16:18.atkbd 134 FreeBSD-SA-16:19.sendmsg 135 136 Fix buffer overflow in keyboard driver. [SA-16:18] 137 138 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 139 14020160504 p2 FreeBSD-SA-16:17.openssl 141 FreeBSD-EN-16:06.libc 142 FreeBSD-EN-16:07.ipi 143 FreeBSD-EN-16:08.zfs 144 145 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 146 147 Fix performance regression in libc hash(3). [EN-16:06] 148 149 Fix excessive latency in x86 IPI delivery. [EN-16:07] 150 151 Fix memory leak in ZFS. [EN-16:08] 152 15320160429 p1 FreeBSD-SA-16:16.ntp 154 155 Fix multiple vulnerabilities of ntp. 156 15720160329: 158 10.3-RELEASE. 159 16020160124: 161 The NONE and HPN patches has been removed from OpenSSH. They are 162 still available in the security/openssh-portable port. 163 16420151214: 165 r292223 changed the internal interface between the nfsd.ko and 166 nfscommon.ko modules. As such, they must both be upgraded to-gether. 167 __FreeBSD_version has been bumped because of this. 168 16920151113: 170 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 171 Kernel modules isp_2400_multi and isp_2500_multi were removed and 172 should be replaced with isp_2400 and isp_2500 modules respectively. 173 17420150806: 175 The menu.rc and loader.rc files will now be replaced during 176 upgrades. Please migrate local changes to menu.rc.local and 177 loader.rc.local instead. 178 17920151026: 180 NTP has been upgraded to 4.2.8p4. 181 18220151025: 183 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 184 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 185 and devel/kyua to version 0.20+ and adjust any calling code to work 186 with Kyuafile and kyua. 187 18820150823: 189 The polarity of Pulse Per Second (PPS) capture events with the 190 uart(4) driver has been corrected. Prior to this change the PPS 191 "assert" event corresponded to the trailing edge of a positive PPS 192 pulse and the "clear" event was the leading edge of the next pulse. 193 194 As the width of a PPS pulse in a typical GPS receiver is on the 195 order of 1 millisecond, most users will not notice any significant 196 difference with this change. 197 198 Anyone who has compensated for the historical polarity reversal by 199 configuring a negative offset equal to the pulse width will need to 200 remove that workaround. 201 20220150822: 203 From legacy ata(4) driver was removed support for SATA controllers 204 supported by more functional drivers ahci(4), siis(4) and mvs(4). 205 Kernel modules ataahci and ataadaptec were removed completely, 206 replaced by ahci and mvs modules respectively. 207 20820150813: 209 10.2-RELEASE. 210 21120150731: 212 As ZFS requires more kernel stack pages than is the default on some 213 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 214 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 215 216 Please consider using 'options KSTACK_PAGES=X' where X is greater 217 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 218 21920150703: 220 The default Unbound configuration now enables remote control 221 using a local socket. Users who have already enabled the 222 local_unbound service should regenerate their configuration 223 by running "service local_unbound setup" as root. 224 22520150624: 226 An additional fix for the issue described in the 20150614 sendmail 227 entry below has been been committed in revision 284786. 228 22920150615: 230 The fix for the issue described in the 20150614 sendmail entry 231 below has been been committed in revision 284485. The work 232 around described in that entry is no longer needed unless the 233 default setting is overridden by a confDH_PARAMETERS configuration 234 setting of '5' or pointing to a 512 bit DH parameter file. 235 23620150614: 237 The import of openssl to address the FreeBSD-SA-15:10.openssl 238 security advisory includes a change which rejects handshakes 239 with DH parameters below 768 bits. sendmail releases prior 240 to 8.15.2 (not yet released), defaulted to a 512 bit 241 DH parameter setting for client connections. To work around 242 this interoperability, sendmail can be configured to use a 243 2048 bit DH parameter by: 244 245 1. Edit /etc/mail/`hostname`.mc 246 2. If a setting for confDH_PARAMETERS does not exist or 247 exists and is set to a string beginning with '5', 248 replace it with '2'. 249 3. If a setting for confDH_PARAMETERS exists and is set to 250 a file path, create a new file with: 251 openssl dhparam -out /path/to/file 2048 252 4. Rebuild the .cf file: 253 cd /etc/mail/; make; make install 254 5. Restart sendmail: 255 cd /etc/mail/; make restart 256 257 A sendmail patch is coming, at which time this file will be 258 updated. 259 26020150601: 261 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 262 defined in symlink(7); previously symlinks were silently ignored. 263 26420150430: 265 The const qualifier has been removed from iconv(3) to comply with 266 POSIX. The ports tree is aware of this from r384038 onwards. 267 26820141215: 269 At svn r275807, The default linux compat kernel ABI has been adjusted 270 to 2.6.18 in support of the linux-c6 compat ports infrastructure 271 update. If you wish to continue using the linux-f10 compat ports, 272 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 273 encouraged to update their linux-compat packages to linux-c6 during 274 their next update cycle. 275 276 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 277 27820141205: 279 pjdfstest has been integrated into kyua as an opt-in test suite. 280 Please see share/doc/pjdfstest/README for a more details on how to 281 execute it. 282 28320141118: 284 10.1-RELEASE. 285 28620140904: 287 The ofwfb driver, used to provide a graphics console on PowerPC when 288 using vt(4), no longer allows mmap() of all of physical memory. This 289 will prevent Xorg on PowerPC with some ATI graphics cards from 290 initializing properly unless x11-servers/xorg-server is updated to 291 1.12.4_8 or newer. 292 29320140831: 294 The libatf-c and libatf-c++ major versions were downgraded to 0 and 295 1 respectively to match the upstream numbers. They were out of 296 sync because, when they were originally added to FreeBSD, the 297 upstream versions were not respected. These libraries are private 298 and not yet built by default, so renumbering them should be a 299 non-issue. However, unclean source trees will yield broken test 300 programs once the operator executes "make delete-old-libs" after a 301 "make installworld". 302 303 Additionally, the atf-sh binary was made private by moving it into 304 /usr/libexec/. Already-built shell test programs will keep the 305 path to the old binary so they will break after "make delete-old" 306 is run. 307 308 If you are using WITH_TESTS=yes (not the default), wipe the object 309 tree and rebuild from scratch to prevent spurious test failures. 310 This is only needed once: the misnumbered libraries and misplaced 311 binaries have been added to OptionalObsoleteFiles.inc so they will 312 be removed during a clean upgrade. 313 31420140814: 315 The ixgbe tunables now match their sysctl counterparts, for example: 316 hw.ixgbe.enable_aim => hw.ix.enable_aim 317 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 318 31920140801: 320 The NFSv4.1 server committed by r269398 changes the internal 321 function call interfaces used between the NFS and krpc modules. 322 As such, __FreeBSD_version was bumped. 323 32420140729: 325 The default unbound configuration has been modified to address 326 issues with reverse lookups on networks that use private 327 address ranges. If you use the local_unbound service, run 328 "service local_unbound setup" as root to regenerate your 329 configuration, then "service local_unbound reload" to load the 330 new configuration. 331 33220140717: 333 It is no longer necessary to include the dwarf version in your DEBUG 334 options in your kernel config file. The bug that required it to be 335 placed in the config file has bene fixed. DEBUG should now just 336 contain -g. The build system will automatically update things 337 to do the right thing. 338 33920140715: 340 Several ABI breaking changes were merged to CTL and new iSCSI code. 341 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 342 iscsictl need to be rebuilt to work with a new kernel. 343 34420140708: 345 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 346 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 347 which differs from the behaviour controlled by this knob.) 348 34920140608: 350 On i386 and amd64 systems, the onifconsole flag is now set by default 351 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 352 as a login TTY if it is set in the bootloader as an active kernel 353 console. No changes in behavior should result otherwise. To revert to 354 the previous behavior, set ttyu0 to "off" in /etc/ttys. 355 35620140512: 357 Clang and llvm have been upgraded to 3.4.1 release. 358 35920140321: 360 Clang and llvm have been upgraded to 3.4 release. 361 36220140306: 363 If a Makefile in a tests/ directory was auto-generating a Kyuafile 364 instead of providing an explicit one, this would prevent such 365 Makefile from providing its own Kyuafile in the future during 366 NO_CLEAN builds. This has been fixed in the Makefiles but manual 367 intervention is needed to clean an objdir if you use NO_CLEAN: 368 # find /usr/obj -name Kyuafile | xargs rm -f 369 37020140303: 371 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 372 capability mode support. Please note that enabling the feature in 373 kernel is still highly recommended. 374 37520140227: 376 OpenSSH is now built with sandbox support, and will use sandbox as 377 the default privilege separation method. This requires Capsicum 378 capability mode support in kernel. 379 38020140216: 381 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 382 been deprecated and will not be part of FreeBSD 11.0 and later 383 releases. If you use this driver, please consider switching to 384 the nfe(4) driver instead. 385 38620140120: 387 10.0-RELEASE. 388 38920131216: 390 The behavior of gss_pseudo_random() for the krb5 mechanism 391 has changed, for applications requesting a longer random string 392 than produced by the underlying enctype's pseudo-random() function. 393 In particular, the random string produced from a session key of 394 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 395 be different at the 17th octet and later, after this change. 396 The counter used in the PRF+ construction is now encoded as a 397 big-endian integer in accordance with RFC 4402. 398 __FreeBSD_version is bumped to 1000701. 399 40020131108: 401 The WITHOUT_ATF build knob has been removed and its functionality 402 has been subsumed into the more generic WITHOUT_TESTS. If you were 403 using the former to disable the build of the ATF libraries, you 404 should change your settings to use the latter. 405 40620131031: 407 The default version of mtree is nmtree which is obtained from 408 NetBSD. The output is generally the same, but may vary 409 slightly. If you found you need identical output adding 410 "-F freebsd9" to the command line should do the trick. For the 411 time being, the old mtree is available as fmtree. 412 41320131014: 414 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 415 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 416 1.1.4_8 and verify bsdyml not linked in, before running "make 417 delete-old-libs": 418 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 419 or 420 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 421 42220131010: 423 The rc.d/jail script has been updated to support jail(8) 424 configuration file. The "jail_<jname>_*" rc.conf(5) variables 425 for per-jail configuration are automatically converted to 426 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 427 This is transparently backward compatible. See below about some 428 incompatibilities and rc.conf(5) manual page for more details. 429 430 These variables are now deprecated in favor of jail(8) configuration 431 file. One can use "rc.d/jail config <jname>" command to generate 432 a jail(8) configuration file in /var/run/jail.<jname>.conf without 433 running the jail(8) utility. The default pathname of the 434 configuration file is /etc/jail.conf and can be specified by 435 using $jail_conf or $jail_<jname>_conf variables. 436 437 Please note that jail_devfs_ruleset accepts an integer at 438 this moment. Please consider to rewrite the ruleset name 439 with an integer. 440 44120130930: 442 BIND has been removed from the base system. If all you need 443 is a local resolver, simply enable and start the local_unbound 444 service instead. Otherwise, several versions of BIND are 445 available in the ports tree. The dns/bind99 port is one example. 446 447 With this change, nslookup(1) and dig(1) are no longer in the base 448 system. Users should instead use host(1) and drill(1) which are 449 in the base system. Alternatively, nslookup and dig can 450 be obtained by installing the dns/bind-tools port. 451 45220130916: 453 With the addition of unbound(8), a new unbound user is now 454 required during installworld. "mergemaster -p" can be used to 455 add the user prior to installworld, as documented in the handbook. 456 45720130911: 458 OpenSSH is now built with DNSSEC support, and will by default 459 silently trust signed SSHFP records. This can be controlled with 460 the VerifyHostKeyDNS client configuration setting. DNSSEC support 461 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 462 46320130906: 464 The GNU Compiler Collection and C++ standard library (libstdc++) 465 are no longer built by default on platforms where clang is the system 466 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 467 options in src.conf. 468 46920130905: 470 The PROCDESC kernel option is now part of the GENERIC kernel 471 configuration and is required for the rwhod(8) to work. 472 If you are using custom kernel configuration, you should include 473 'options PROCDESC'. 474 47520130905: 476 The API and ABI related to the Capsicum framework was modified 477 in backward incompatible way. The userland libraries and programs 478 have to be recompiled to work with the new kernel. This includes the 479 following libraries and programs, but the whole buildworld is 480 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 481 kdump, procstat, rwho, rwhod, uniq. 482 48320130903: 484 AES-NI intrinsic support has been added to gcc. The AES-NI module 485 has been updated to use this support. A new gcc is required to build 486 the aesni module on both i386 and amd64. 487 48820130821: 489 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 490 Thus "device padlock_rng" and "device rdrand_rng" should be 491 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 492 49320130813: 494 WITH_ICONV has been split into two feature sets. WITH_ICONV now 495 enables just the iconv* functionality and is now on by default. 496 WITH_LIBICONV_COMPAT enables the libiconv api and link time 497 compatability. Set WITHOUT_ICONV to build the old way. 498 If you have been using WITH_ICONV before, you will very likely 499 need to turn on WITH_LIBICONV_COMPAT. 500 50120130806: 502 INVARIANTS option now enables DEBUG for code with OpenSolaris and 503 Illumos origin, including ZFS. If you have INVARIANTS in your 504 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 505 explicitly. 506 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 507 locks if WITNESS option was set. Because that generated a lot of 508 witness(9) reports and all of them were believed to be false 509 positives, this is no longer done. New option OPENSOLARIS_WITNESS 510 can be used to achieve the previous behavior. 511 51220130806: 513 Timer values in IPv6 data structures now use time_uptime instead 514 of time_second. Although this is not a user-visible functional 515 change, userland utilities which directly use them---ndp(8), 516 rtadvd(8), and rtsold(8) in the base system---need to be updated 517 to r253970 or later. 518 51920130802: 520 find -delete can now delete the pathnames given as arguments, 521 instead of only files found below them or if the pathname did 522 not contain any slashes. Formerly, the following error message 523 would result: 524 525 find: -delete: <path>: relative path potentially not safe 526 527 Deleting the pathnames given as arguments can be prevented 528 without error messages using -mindepth 1 or by changing 529 directory and passing "." as argument to find. This works in the 530 old as well as the new version of find. 531 53220130726: 533 Behavior of devfs rules path matching has been changed. 534 Pattern is now always matched against fully qualified devfs 535 path and slash characters must be explicitly matched by 536 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 537 subdirectories must be reviewed. 538 53920130716: 540 The default ARM ABI has changed to the ARM EABI. The old ABI is 541 incompatible with the ARM EABI and all programs and modules will 542 need to be rebuilt to work with a new kernel. 543 544 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 545 546 NOTE: Support for the old ABI will be removed in the future and 547 users are advised to upgrade. 548 54920130709: 550 pkg_install has been disconnected from the build if you really need it 551 you should add WITH_PKGTOOLS in your src.conf(5). 552 55320130709: 554 Most of network statistics structures were changed to be able 555 keep 64-bits counters. Thus all tools, that work with networking 556 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 557 55820130618: 559 Fix a bug that allowed a tracing process (e.g. gdb) to write 560 to a memory-mapped file in the traced process's address space 561 even if neither the traced process nor the tracing process had 562 write access to that file. 563 56420130615: 565 CVS has been removed from the base system. An exact copy 566 of the code is available from the devel/cvs port. 567 56820130613: 569 Some people report the following error after the switch to bmake: 570 571 make: illegal option -- J 572 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 573 ... 574 *** [buildworld] Error code 2 575 576 this likely due to an old instance of make in 577 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 578 which src/Makefile will use that blindly, if it exists, so if 579 you see the above error: 580 581 rm -rf `make -V MAKEPATH` 582 583 should resolve it. 584 58520130516: 586 Use bmake by default. 587 Whereas before one could choose to build with bmake via 588 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 589 make. The goal is to remove these knobs for 10-RELEASE. 590 591 It is worth noting that bmake (like gmake) treats the command 592 line as the unit of failure, rather than statements within the 593 command line. Thus '(cd some/where && dosomething)' is safer 594 than 'cd some/where; dosomething'. The '()' allows consistent 595 behavior in parallel build. 596 59720130429: 598 Fix a bug that allows NFS clients to issue READDIR on files. 599 60020130426: 601 The WITHOUT_IDEA option has been removed because 602 the IDEA patent expired. 603 60420130426: 605 The sysctl which controls TRIM support under ZFS has been renamed 606 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 607 enabled by default. 608 60920130425: 610 The mergemaster command now uses the default MAKEOBJDIRPREFIX 611 rather than creating it's own in the temporary directory in 612 order allow access to bootstrapped versions of tools such as 613 install and mtree. When upgrading from version of FreeBSD where 614 the install command does not support -l, you will need to 615 install a new mergemaster command if mergemaster -p is required. 616 This can be accomplished with the command (cd src/usr.sbin/mergemaster 617 && make install). 618 61920130404: 620 Legacy ATA stack, disabled and replaced by new CAM-based one since 621 FreeBSD 9.0, completely removed from the sources. Kernel modules 622 atadisk and atapi*, user-level tools atacontrol and burncd are 623 removed. Kernel option `options ATA_CAM` is now permanently enabled 624 and removed. 625 62620130319: 627 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 628 and socketpair(2). Software, in particular Kerberos, may 629 automatically detect and use these during building. The resulting 630 binaries will not work on older kernels. 631 63220130308: 633 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 634 information, see the respective 20130304 entry). 635 63620130304: 637 Recent commits to callout(9) changed the size of struct callout, 638 so the KBI is probably heavily disturbed. Also, some functions 639 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 640 by macros. Every kernel module using it won't load, so rebuild 641 is requested. 642 643 The ctl device has been re-enabled in GENERIC for i386 and amd64, 644 but does not initialize by default (because of the new CTL_DISABLE 645 option) to save memory. To re-enable it, remove the CTL_DISABLE 646 option from the kernel config file or set kern.cam.ctl.disable=0 647 in /boot/loader.conf. 648 64920130301: 650 The ctl device has been disabled in GENERIC for i386 and amd64. 651 This was done due to the extra memory being allocated at system 652 initialisation time by the ctl driver which was only used if 653 a CAM target device was created. This makes a FreeBSD system 654 unusable on 128MB or less of RAM. 655 65620130208: 657 A new compression method (lz4) has been merged to -HEAD. Please 658 refer to zpool-features(7) for more information. 659 660 Please refer to the "ZFS notes" section of this file for information 661 on upgrading boot ZFS pools. 662 66320130129: 664 A BSD-licensed patch(1) variant has been added and is installed 665 as bsdpatch, being the GNU version the default patch. 666 To inverse the logic and use the BSD-licensed one as default, 667 while having the GNU version installed as gnupatch, rebuild 668 and install world with the WITH_BSD_PATCH knob set. 669 67020130121: 671 Due to the use of the new -l option to install(1) during build 672 and install, you must take care not to directly set the INSTALL 673 make variable in your /etc/make.conf, /etc/src.conf, or on the 674 command line. If you wish to use the -C flag for all installs 675 you may be able to add INSTALL+=-C to /etc/make.conf or 676 /etc/src.conf. 677 67820130118: 679 The install(1) option -M has changed meaning and now takes an 680 argument that is a file or path to append logs to. In the 681 unlikely event that -M was the last option on the command line 682 and the command line contained at least two files and a target 683 directory the first file will have logs appended to it. The -M 684 option served little practical purpose in the last decade so its 685 use is expected to be extremely rare. 686 68720121223: 688 After switching to Clang as the default compiler some users of ZFS 689 on i386 systems started to experience stack overflow kernel panics. 690 Please consider using 'options KSTACK_PAGES=4' in such configurations. 691 69220121222: 693 GEOM_LABEL now mangles label names read from file system metadata. 694 Mangling affect labels containing spaces, non-printable characters, 695 '%' or '"'. Device names in /etc/fstab and other places may need to 696 be updated. 697 69820121217: 699 By default, only the 10 most recent kernel dumps will be saved. To 700 restore the previous behaviour (no limit on the number of kernel dumps 701 stored in the dump directory) add the following line to /etc/rc.conf: 702 703 savecore_flags="" 704 70520121201: 706 With the addition of auditdistd(8), a new auditdistd user is now 707 required during installworld. "mergemaster -p" can be used to 708 add the user prior to installworld, as documented in the handbook. 709 71020121117: 711 The sin6_scope_id member variable in struct sockaddr_in6 is now 712 filled by the kernel before passing the structure to the userland via 713 sysctl or routing socket. This means the KAME-specific embedded scope 714 id in sin6_addr.s6_addr[2] is always cleared in userland application. 715 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 716 __FreeBSD_version is bumped to 1000025. 717 71820121105: 719 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 720 This means that the world and kernel will be compiled with clang 721 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 722 and /usr/bin/cpp. To disable this behavior and revert to building 723 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 724 of current may need to bootstrap WITHOUT_CLANG first if the clang 725 build fails (its compatibility window doesn't extend to the 9 stable 726 branch point). 727 72820121102: 729 The IPFIREWALL_FORWARD kernel option has been removed. Its 730 functionality now turned on by default. 731 73220121023: 733 The ZERO_COPY_SOCKET kernel option has been removed and 734 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 735 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 736 mechanism which is not safe and may result in kernel crashes. 737 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 738 driver supports disposeable external page sized mbuf storage. 739 Proper replacements for both zero-copy mechanisms are under 740 consideration and will eventually lead to complete removal 741 of the two kernel options. 742 74320121023: 744 The IPv4 network stack has been converted to network byte 745 order. The following modules need to be recompiled together 746 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 747 pf(4), ipfw(4), ng_ipfw(4), stf(4). 748 74920121022: 750 Support for non-MPSAFE filesystems was removed from VFS. The 751 VFS_VERSION was bumped, all filesystem modules shall be 752 recompiled. 753 75420121018: 755 All the non-MPSAFE filesystems have been disconnected from 756 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 757 portalfs, smbfs, xfs. 758 75920121016: 760 The interface cloning API and ABI has changed. The following 761 modules need to be recompiled together with kernel: 762 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 763 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 764 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 765 76620121015: 767 The sdhci driver was split in two parts: sdhci (generic SD Host 768 Controller logic) and sdhci_pci (actual hardware driver). 769 No kernel config modifications are required, but if you 770 load sdhc as a module you must switch to sdhci_pci instead. 771 77220121014: 773 Import the FUSE kernel and userland support into base system. 774 77520121013: 776 The GNU sort(1) program has been removed since the BSD-licensed 777 sort(1) has been the default for quite some time and no serious 778 problems have been reported. The corresponding WITH_GNU_SORT 779 knob has also gone. 780 78120121006: 782 The pfil(9) API/ABI for AF_INET family has been changed. Packet 783 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 784 with new kernel. 785 78620121001: 787 The net80211(4) ABI has been changed to allow for improved driver 788 PS-POLL and power-save support. All wireless drivers need to be 789 recompiled to work with the new kernel. 790 79120120913: 792 The random(4) support for the VIA hardware random number 793 generator (`PADLOCK') is no longer enabled unconditionally. 794 Add the padlock_rng device in the custom kernel config if 795 needed. The GENERIC kernels on i386 and amd64 do include the 796 device, so the change only affects the custom kernel 797 configurations. 798 79920120908: 800 The pf(4) packet filter ABI has been changed. pfctl(8) and 801 snmp_pf module need to be recompiled to work with new kernel. 802 80320120828: 804 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 805 to -HEAD. Pools that have empty_bpobj in active state can not be 806 imported read-write with ZFS implementations that do not support 807 this feature. For more information read the zpool-features(5) 808 manual page. 809 81020120727: 811 The sparc64 ZFS loader has been changed to no longer try to auto- 812 detect ZFS providers based on diskN aliases but now requires these 813 to be explicitly listed in the OFW boot-device environment variable. 814 81520120712: 816 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 817 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 818 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 819 82020120712: 821 The following sysctls and tunables have been renamed for consistency 822 with other variables: 823 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 824 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 825 82620120628: 827 The sort utility has been replaced with BSD sort. For now, GNU sort 828 is also available as "gnusort" or the default can be set back to 829 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 830 installed as "bsdsort". 831 83220120611: 833 A new version of ZFS (pool version 5000) has been merged to -HEAD. 834 Starting with this version the old system of ZFS pool versioning 835 is superseded by "feature flags". This concept enables forward 836 compatibility against certain future changes in functionality of ZFS 837 pools. The first read-only compatible "feature flag" for ZFS pools 838 is named "com.delphix:async_destroy". For more information 839 read the new zpool-features(5) manual page. 840 Please refer to the "ZFS notes" section of this file for information 841 on upgrading boot ZFS pools. 842 84320120417: 844 The malloc(3) implementation embedded in libc now uses sources imported 845 as contrib/jemalloc. The most disruptive API change is to 846 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 847 delete it prior to installworld, and optionally re-create it using the 848 new format after rebooting. See malloc.conf(5) for details 849 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 850 NAMESPACE section). 851 85220120328: 853 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 854 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 855 now spelled mips. This is to aid compatibility with third-party 856 software that expects this naming scheme in uname(3). Little-endian 857 settings are unchanged. If you are updating a big-endian mips64 machine 858 from before this change, you may need to set MACHINE_ARCH=mips64 in 859 your environment before the new build system will recognize your machine. 860 86120120306: 862 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 863 platforms. 864 86520120229: 866 Now unix domain sockets behave "as expected" on nullfs(5). Previously 867 nullfs(5) did not pass through all behaviours to the underlying layer, 868 as a result if we bound to a socket on the lower layer we could connect 869 only to the lower path; if we bound to the upper layer we could connect 870 only to the upper path. The new behavior is one can connect to both the 871 lower and the upper paths regardless what layer path one binds to. 872 87320120211: 874 The getifaddrs upgrade path broken with 20111215 has been restored. 875 If you have upgraded in between 20111215 and 20120209 you need to 876 recompile libc again with your kernel. You still need to recompile 877 world to be able to configure CARP but this restriction already 878 comes from 20111215. 879 88020120114: 881 The set_rcvar() function has been removed from /etc/rc.subr. All 882 base and ports rc.d scripts have been updated, so if you have a 883 port installed with a script in /usr/local/etc/rc.d you can either 884 hand-edit the rcvar= line, or reinstall the port. 885 886 An easy way to handle the mass-update of /etc/rc.d: 887 rm /etc/rc.d/* && mergemaster -i 888 88920120109: 890 panic(9) now stops other CPUs in the SMP systems, disables interrupts 891 on the current CPU and prevents other threads from running. 892 This behavior can be reverted using the kern.stop_scheduler_on_panic 893 tunable/sysctl. 894 The new behavior can be incompatible with kern.sync_on_panic. 895 89620111215: 897 The carp(4) facility has been changed significantly. Configuration 898 of the CARP protocol via ifconfig(8) has changed, as well as format 899 of CARP events submitted to devd(8) has changed. See manual pages 900 for more information. The arpbalance feature of carp(4) is currently 901 not supported anymore. 902 903 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 904 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 905 need to be recompiled. 906 90720111122: 908 The acpi_wmi(4) status device /dev/wmistat has been renamed to 909 /dev/wmistat0. 910 91120111108: 912 The option VFS_ALLOW_NONMPSAFE option has been added in order to 913 explicitely support non-MPSAFE filesystems. 914 It is on by default for all supported platform at this present 915 time. 916 91720111101: 918 The broken amd(4) driver has been replaced with esp(4) in the amd64, 919 i386 and pc98 GENERIC kernel configuration files. 920 92120110930: 922 sysinstall has been removed 923 92420110923: 925 The stable/9 branch created in subversion. This corresponds to the 926 RELENG_9 branch in CVS. 927 92820110913: 929 This commit modifies vfs_register() so that it uses a hash 930 calculation to set vfc_typenum, which is enabled by default. 931 The first time a system is booted after this change, the 932 vfc_typenum values will change for all file systems. The 933 main effect of this is a change to the NFS server file handles 934 for file systems that use vfc_typenum in their fsid, such as ZFS. 935 It will, however, prevent vfc_typenum from changing when file 936 systems are loaded in a different order for subsequent reboots. 937 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 938 until you are ready to remount all NFS clients after a reboot. 939 94020110828: 941 Bump the shared library version numbers for libraries that 942 do not use symbol versioning, have changed the ABI compared 943 to stable/8 and which shared library version was not bumped. 944 Done as part of 9.0-RELEASE cycle. 945 94620110815: 947 During the merge of Capsicum features, the fget(9) KPI was modified. 948 This may require the rebuilding of out-of-tree device drivers -- 949 issues have been reported specifically with the nVidia device driver. 950 __FreeBSD_version is bumped to 900041. 951 952 Also, there is a period between 20110811 and 20110814 where the 953 special devices /dev/{stdin,stdout,stderr} did not work correctly. 954 Building world from a kernel during that window may not work. 955 95620110628: 957 The packet filter (pf) code has been updated to OpenBSD 4.5. 958 You need to update userland tools to be in sync with kernel. 959 This update breaks backward compatibility with earlier pfsync(4) 960 versions. Care must be taken when updating redundant firewall setups. 961 96220110608: 963 The following sysctls and tunables are retired on x86 platforms: 964 machdep.hlt_cpus 965 machdep.hlt_logical_cpus 966 The following sysctl is retired: 967 machdep.hyperthreading_allowed 968 The sysctls were supposed to provide a way to dynamically offline and 969 online selected CPUs on x86 platforms, but the implementation has not 970 been reliable especially with SCHED_ULE scheduler. 971 machdep.hyperthreading_allowed tunable is still available to ignore 972 hyperthreading CPUs at OS level. 973 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 974 where X is an APIC ID of a CPU. Be advised, though, that disabling 975 CPUs in non-uniform fashion will result in non-uniform topology and 976 may lead to sub-optimal system performance with SCHED_ULE, which is 977 a default scheduler. 978 97920110607: 980 cpumask_t type is retired and cpuset_t is used in order to describe 981 a mask of CPUs. 982 98320110531: 984 Changes to ifconfig(8) for dynamic address family detection mandate 985 that you are running a kernel of 20110525 or later. Make sure to 986 follow the update procedure to boot a new kernel before installing 987 world. 988 98920110513: 990 Support for sun4v architecture is officially dropped 991 99220110503: 993 Several KPI breaking changes have been committed to the mii(4) layer, 994 the PHY drivers and consequently some Ethernet drivers using mii(4). 995 This means that miibus.ko and the modules of the affected Ethernet 996 drivers need to be recompiled. 997 998 Note to kernel developers: Given that the OUI bit reversion problem 999 was fixed as part of these changes all mii(4) commits related to OUIs, 1000 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 1001 handling, no longer can be merged verbatim to stable/8 and previous 1002 branches. 1003 100420110430: 1005 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1006 into their kernel configurations along with 'device pci'. 1007 100820110427: 1009 The default NFS client is now the new NFS client, so fstype "newnfs" 1010 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1011 Although mounts via fstype "nfs" will usually work without userland 1012 changes, it is recommended that the mount(8) and mount_nfs(8) 1013 commands be rebuilt from sources and that a link to mount_nfs called 1014 mount_oldnfs be created. The new client is compiled into the 1015 kernel with "options NFSCL" and this is needed for diskless root 1016 file systems. The GENERIC kernel configs have been changed to use 1017 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1018 To use the regular/old client, you can "mount -t oldnfs ...". For 1019 a diskless root file system, you must also include a line like: 1020 1021 vfs.root.mountfrom="oldnfs:" 1022 1023 in the boot/loader.conf on the root fs on the NFS server to make 1024 a diskless root fs use the old client. 1025 102620110424: 1027 The GENERIC kernels for all architectures now default to the new 1028 CAM-based ATA stack. It means that all legacy ATA drivers were 1029 removed and replaced by respective CAM drivers. If you are using 1030 ATA device names in /etc/fstab or other places, make sure to update 1031 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1032 where 'Y's are the sequential numbers starting from zero for each type 1033 in order of detection, unless configured otherwise with tunables, 1034 see cam(4)). There will be symbolic links created in /dev/ to map 1035 old adX devices to the respective adaY. They should provide basic 1036 compatibility for file systems mounting in most cases, but they do 1037 not support old user-level APIs and do not have respective providers 1038 in GEOM. Consider using updated management tools with new device names. 1039 1040 It is possible to load devices ahci, ata, siis and mvs as modules, 1041 but option ATA_CAM should remain in kernel configuration to make ata 1042 module work as CAM driver supporting legacy ATA controllers. Device ata 1043 still can be used in modular fashion (atacore + ...). Modules atadisk 1044 and atapi* are not used and won't affect operation in ATA_CAM mode. 1045 Note that to use CAM-based ATA kernel should include CAM devices 1046 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1047 them are parts of the cam module. 1048 1049 ataraid(4) functionality is now supported by the RAID GEOM class. 1050 To use it you can load geom_raid kernel module and use graid(8) tool 1051 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1052 1053 No kernel config options or code have been removed, so if a problem 1054 arises, please report it and optionally revert to the old ATA stack. 1055 In order to do it you can remove from the kernel config: 1056 options ATA_CAM 1057 device ahci 1058 device mvs 1059 device siis 1060 , and instead add back: 1061 device atadisk # ATA disk drives 1062 device ataraid # ATA RAID drives 1063 device atapicd # ATAPI CDROM drives 1064 device atapifd # ATAPI floppy drives 1065 device atapist # ATAPI tape drives 1066 106720110423: 1068 The default NFS server has been changed to the new server, which 1069 was referred to as the experimental server. If you need to switch 1070 back to the old NFS server, you must now put the "-o" option on 1071 both the mountd and nfsd commands. This can be done using the 1072 mountd_flags and nfs_server_flags rc.conf variables until an 1073 update to the rc scripts is committed, which is coming soon. 1074 107520110418: 1076 The GNU Objective-C runtime library (libobjc), and other Objective-C 1077 related components have been removed from the base system. If you 1078 require an Objective-C library, please use one of the available ports. 1079 108020110331: 1081 ath(4) has been split into bus- and device- modules. if_ath contains 1082 the HAL, the TX rate control and the network device code. if_ath_pci 1083 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1084 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1085 in order to use ath on everything else. 1086 1087 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1088 need to load if_ath and if_ath_pci for ath(4) operation. 1089 109020110314: 1091 As part of the replacement of sysinstall, the process of building 1092 release media has changed significantly. For details, please re-read 1093 release(7), which has been updated to reflect the new build process. 1094 109520110218: 1096 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1097 is the last available version under GPLv2. It brings a number of new 1098 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1099 4.1 and SSE 4.2), better support for powerpc64, a number of new 1100 directives, and lots of other small improvements. See the ChangeLog 1101 file in contrib/binutils for the full details. 1102 110320110218: 1104 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1105 compliant, and will now use half of hash for authentication. 1106 This will break interoperability with all stacks (including all 1107 actual FreeBSD versions) who implement 1108 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1109 authentication). 1110 The only workaround with such peers is to use another HMAC 1111 algorithm for IPsec ("phase 2") authentication. 1112 111320110207: 1114 Remove the uio_yield prototype and symbol. This function has 1115 been misnamed since it was introduced and should not be 1116 globally exposed with this name. The equivalent functionality 1117 is now available using kern_yield(curthread->td_user_pri). 1118 The function remains undocumented. 1119 112020110112: 1121 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1122 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1123 for scalar sysctls is defined but disabled. Code that needs 1124 UQUAD to pass the type checking that must compile on older 1125 systems where the define is not present can check against 1126 __FreeBSD_version >= 900030. 1127 1128 The system dialog(1) has been replaced with a new version previously 1129 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1130 with the previous version, but the libdialog associated with it has 1131 a largely incompatible API. As such, the original version of libdialog 1132 will be kept temporarily as libodialog, until its base system consumers 1133 are replaced or updated. Bump __FreeBSD_version to 900030. 1134 113520110103: 1136 If you are trying to run make universe on a -stable system, and you get 1137 the following warning: 1138 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1139 unknown. config(8) likely too old." 1140 or something similar to it, then you must upgrade your -stable system 1141 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1142 stable/8) or build the config from the latest stable/8 branch and 1143 install it on your system. 1144 1145 Prior to this date, building a current universe on 8-stable system from 1146 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1147 error in the first kernel build phase. A new config on those old 1148 systems will fix that problem for older versions of -current. 1149 115020101228: 1151 The TCP stack has been modified to allow Khelp modules to interact with 1152 it via helper hook points and store per-connection data in the TCP 1153 control block. Bump __FreeBSD_version to 900029. User space tools that 1154 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1155 be recompiled. 1156 115720101114: 1158 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1159 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1160 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1161 to take advantage of it instead of using custom implementations. This 1162 means that these drivers now no longer unconditionally advertise 1163 support for flow control but only do so if flow control is a selected 1164 media option. This was implemented in the generic support that way in 1165 order to allow flow control to be switched on and off via ifconfig(8) 1166 with the PHY specific default to typically off in order to protect 1167 from unwanted effects. Consequently, if you used flow control with 1168 one of the above mentioned drivers you now need to explicitly enable 1169 it, for example via: 1170 ifconfig bge0 media auto mediaopt flowcontrol 1171 1172 Along with the above mentioned changes generic support for setting 1173 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1174 e1000phy(4) as well as ip1000phy(4) have been converted to take 1175 advantage of it. This means that these drivers now no longer take the 1176 link0 parameter for selecting master mode but the master media option 1177 has to be used instead, for example like in the following: 1178 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1179 1180 Selection of master mode now is also available with all other PHY 1181 drivers supporting 1000baseT. 1182 118320101111: 1184 The TCP stack has received a significant update to add support for 1185 modularised congestion control and generally improve the clarity of 1186 congestion control decisions. Bump __FreeBSD_version to 900025. User 1187 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1188 sockstat) need to be recompiled. 1189 119020101002: 1191 The man(1) utility has been replaced by a new version that no longer 1192 uses /etc/manpath.config. Please consult man.conf(5) for how to 1193 migrate local entries to the new format. 1194 119520100928: 1196 The copyright strings printed by login(1) and sshd(8) at the time of a 1197 new connection have been removed to follow other operating systems and 1198 upstream sshd. 1199 120020100915: 1201 A workaround for a fixed ld bug has been removed in kernel code, 1202 so make sure that your system ld is built from sources after 1203 revision 210245 from 2010-07-19 (r211583 if building head kernel 1204 on stable/8, r211584 for stable/7; both from 2010-08-21). 1205 A symptom of incorrect ld version is different addresses for 1206 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1207 120820100913: 1209 The $ipv6_prefer variable in rc.conf(5) has been split into 1210 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1211 1212 The $ip6addrctl_policy is a variable to choose a pre-defined 1213 address selection policy set by ip6addrctl(8). A value 1214 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1215 default is "AUTO". 1216 1217 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1218 flag (see an entry of 20090926) is set on an interface with no 1219 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1220 security reason. If you want IPv6 link-local address on all 1221 interfaces by default, set this to "YES". 1222 1223 The old ipv6_prefer="YES" is equivalent to 1224 ipv6_activate_all_interfaces="YES" and 1225 ip6addrctl_policy="ipv6_prefer". 1226 122720100913: 1228 DTrace has grown support for userland tracing. Due to this, DTrace is 1229 now i386 and amd64 only. 1230 dtruss(1) is now installed by default on those systems and a new 1231 kernel module is needed for userland tracing: fasttrap. 1232 No changes to your kernel config file are necessary to enable 1233 userland tracing, but you might consider adding 'STRIP=' and 1234 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1235 to have informative userland stack traces in DTrace (ustack). 1236 123720100725: 1238 The acpi_aiboost(4) driver has been removed in favor of the new 1239 aibs(4) driver. You should update your kernel configuration file. 1240 124120100722: 1242 BSD grep has been imported to the base system and it is built by 1243 default. It is completely BSD licensed, highly GNU-compatible, uses 1244 less memory than its GNU counterpart and has a small codebase. 1245 However, it is slower than its GNU counterpart, which is mostly 1246 noticeable for larger searches, for smaller ones it is measurable 1247 but not significant. The reason is complex, the most important factor 1248 is that we lack a modern and efficient regex library and GNU 1249 overcomes this by optimizing the searches internally. Future work 1250 on improving the regex performance is planned, for the meantime, 1251 users that need better performance, can build GNU grep instead by 1252 setting the WITH_GNU_GREP knob. 1253 125420100713: 1255 Due to the import of powerpc64 support, all existing powerpc kernel 1256 configuration files must be updated with a machine directive like this: 1257 machine powerpc powerpc 1258 1259 In addition, an updated config(8) is required to build powerpc kernels 1260 after this change. 1261 126220100713: 1263 A new version of ZFS (version 15) has been merged to -HEAD. 1264 This version uses a python library for the following subcommands: 1265 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1266 For full functionality of these commands the following port must 1267 be installed: sysutils/py-zfs 1268 126920100429: 1270 'vm_page's are now hashed by physical address to an array of mutexes. 1271 Currently this is only used to serialize access to hold_count. Over 1272 time the page queue mutex will be peeled away. This changes the size 1273 of pmap on every architecture. And requires all callers of vm_page_hold 1274 and vm_page_unhold to be updated. 1275 127620100402: 1277 WITH_CTF can now be specified in src.conf (not recommended, there 1278 are some problems with static executables), make.conf (would also 1279 affect ports which do not use GNU make and do not override the 1280 compile targets) or in the kernel config (via "makeoptions 1281 WITH_CTF=yes"). 1282 When WITH_CTF was specified there before this was silently ignored, 1283 so make sure that WITH_CTF is not used in places which could lead 1284 to unwanted behavior. 1285 128620100311: 1287 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1288 to allow 32-bit compatibility on non-x86 platforms. All kernel 1289 configurations on amd64 and ia64 platforms using these options must 1290 be modified accordingly. 1291 129220100113: 1293 The utmp user accounting database has been replaced with utmpx, 1294 the user accounting interface standardized by POSIX. 1295 Unfortunately the semantics of utmp and utmpx don't match, 1296 making it practically impossible to support both interfaces. 1297 The user accounting database is used by tools like finger(1), 1298 last(1), talk(1), w(1) and ac(8). 1299 1300 All applications in the base system use utmpx. This means only 1301 local binaries (e.g. from the ports tree) may still use these 1302 utmp database files. These applications must be rebuilt to make 1303 use of utmpx. 1304 1305 After the system has been upgraded, it is safe to remove the old 1306 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1307 assuming their contents is of no importance anymore. Old wtmp 1308 databases can only be used by last(1) and ac(8) after they have 1309 been converted to the new format using wtmpcvt(1). 1310 131120100108: 1312 Introduce the kernel thread "deadlock resolver" (which can be enabled 1313 via the DEADLKRES option, see NOTES for more details) and the 1314 sleepq_type() function for sleepqueues. 1315 131620091202: 1317 The rc.firewall and rc.firewall6 were unified, and 1318 rc.firewall6 and rc.d/ip6fw were removed. 1319 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1320 variables are obsoleted. Instead, the following new rc 1321 variables are added to rc.d/ipfw: 1322 1323 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1324 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1325 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1326 1327 The meanings correspond to the relevant IPv4 variables. 1328 132920091125: 1330 8.0-RELEASE. 1331 133220091113: 1333 The default terminal emulation for syscons(4) has been changed 1334 from cons25 to xterm on all platforms except pc98. This means 1335 that the /etc/ttys file needs to be updated to ensure correct 1336 operation of applications on the console. 1337 1338 The terminal emulation style can be toggled per window by using 1339 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1340 options can be used to change the compile-time default back to 1341 cons25. 1342 1343 To prevent graphical artifacts, make sure the TERM environment 1344 variable is set to match the terminal emulation that is being 1345 performed by syscons(4). 1346 134720091109: 1348 The layout of the structure ieee80211req_scan_result has changed. 1349 Applications that require wireless scan results (e.g. ifconfig(8)) 1350 from net80211 need to be recompiled. 1351 1352 Applications such as wpa_supplicant(8) may require a full world 1353 build without using NO_CLEAN in order to get synchronized with the 1354 new structure. 1355 135620091025: 1357 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1358 There's one kernel module for each firmware. Adding "device iwnfw" 1359 to the kernel configuration file means including all three firmware 1360 images inside the kernel. If you want to include just the one for 1361 your wireless card, use the devices iwn4965fw, iwn5000fw or 1362 iwn5150fw. 1363 136420090926: 1365 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1366 into rc.d/netif. The changes are the following: 1367 1368 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1369 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1370 Note that both variables need the "inet6" keyword at the head. 1371 1372 Do not set $ipv6_network_interfaces manually if you do not 1373 understand what you are doing. It is not needed in most cases. 1374 1375 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1376 they are obsolete. 1377 1378 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1379 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1380 1381 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1382 all configured interfaces have "inet6 accept_rtadv" in the 1383 $ifconfig_IF_ipv6. These are for backward compatibility. 1384 1385 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1386 functionality of interfaces with no corresponding 1387 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1388 and the default address selection policy of ip6addrctl(8) 1389 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1390 Note that if you want to configure IPv6 functionality on the 1391 disabled interfaces after boot, first you need to clear the flag by 1392 using ifconfig(8) like: 1393 1394 ifconfig em0 inet6 -ifdisabled 1395 1396 If YES, the default address selection policy is set as 1397 IPv6-preferred. 1398 1399 The default value of $ipv6_prefer is NO. 1400 1401 4. If your system need to receive Router Advertisement messages, 1402 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1403 scripts automatically invoke rtsol(8) when the interface becomes 1404 UP. The Router Advertisement messages are used for SLAAC 1405 (State-Less Address AutoConfiguration). 1406 140720090922: 1408 802.11s D3.03 support was committed. This is incompatible with the 1409 previous code, which was based on D3.0. 1410 141120090912: 1412 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1413 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1414 control whether accepting Router Advertisement messages or not. 1415 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1416 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1417 The ifconfig(8) utility now supports these flags. 1418 141920090910: 1420 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1421 mount(8) and -a option for df(1) to see them. 1422 142320090825: 1424 The old tunable hw.bus.devctl_disable has been superseded by 1425 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1426 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1427 is 1000. 1428 142920090813: 1430 Remove the option STOP_NMI. The default action is now to use NMI only 1431 for KDB via the newly introduced function stop_cpus_hard() and 1432 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1433 143420090803: 1435 The stable/8 branch created in subversion. This corresponds to the 1436 RELENG_8 branch in CVS. 1437 143820090719: 1439 Bump the shared library version numbers for all libraries that do not 1440 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1441 __FreeBSD_version to 800105. 1442 144320090714: 1444 Due to changes in the implementation of virtual network stack support, 1445 all network-related kernel modules must be recompiled. As this change 1446 breaks the ABI, bump __FreeBSD_version to 800104. 1447 144820090713: 1449 The TOE interface to the TCP syncache has been modified to remove 1450 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1451 The cxgb driver is the only TOE consumer affected by this change, and 1452 needs to be recompiled along with the kernel. As this change breaks 1453 the ABI, bump __FreeBSD_version to 800103. 1454 145520090712: 1456 Padding has been added to struct tcpcb, sackhint and tcpstat in 1457 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1458 maintaining the ABI. However, this change breaks the ABI, so bump 1459 __FreeBSD_version to 800102. User space tools that rely on the size of 1460 any of these structs (e.g. sockstat) need to be recompiled. 1461 146220090630: 1463 The NFS_LEGACYRPC option has been removed along with the old kernel 1464 RPC implementation that this option selected. Kernel configurations 1465 may need to be adjusted. 1466 146720090629: 1468 The network interface device nodes at /dev/net/<interface> have been 1469 removed. All ioctl operations can be performed the normal way using 1470 routing sockets. The kqueue functionality can generally be replaced 1471 with routing sockets. 1472 147320090628: 1474 The documentation from the FreeBSD Documentation Project (Handbook, 1475 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1476 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1477 147820090624: 1479 The ABI of various structures related to the SYSV IPC API have been 1480 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1481 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1482 800100. 1483 148420090622: 1485 Layout of struct vnet has changed as routing related variables were 1486 moved to their own Vimage module. Modules need to be recompiled. Bump 1487 __FreeBSD_version to 800099. 1488 148920090619: 1490 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1491 respectively. As long as no more than 16 groups per process are used, 1492 no changes should be visible. When more than 16 groups are used, old 1493 binaries may fail if they call getgroups() or getgrouplist() with 1494 statically sized storage. Recompiling will work around this, but 1495 applications should be modified to use dynamically allocated storage 1496 for group arrays as POSIX.1-2008 does not cap an implementation's 1497 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1498 1499 NFS and portalfs mounts may also be affected as the list of groups is 1500 truncated to 16. Users of NFS who use more than 16 groups, should 1501 take care that negative group permissions are not used on the exported 1502 file systems as they will not be reliable unless a GSSAPI based 1503 authentication method is used. 1504 150520090616: 1506 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1507 option compiles in the support for adaptive spinning for lockmgrs 1508 which want to enable it. The lockinit() function now accepts the flag 1509 LK_ADAPTIVE in order to make the lock object subject to adaptive 1510 spinning when both held in write and read mode. 1511 151220090613: 1513 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1514 changed. User applications that use this ioctl need to be rebuilt. 1515 151620090611: 1517 The layout of struct thread has changed. Kernel and modules need to 1518 be rebuilt. 1519 152020090608: 1521 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1522 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1523 152420090602: 1525 window(1) has been removed from the base system. It can now be 1526 installed from ports. The port is called misc/window. 1527 152820090601: 1529 The way we are storing and accessing `routing table' entries has 1530 changed. Programs reading the FIB, like netstat, need to be 1531 re-compiled. 1532 153320090601: 1534 A new netisr implementation has been added for FreeBSD 8. Network 1535 file system modules, such as igmp, ipdivert, and others, should be 1536 rebuilt. 1537 Bump __FreeBSD_version to 800096. 1538 153920090530: 1540 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1541 more valid. 1542 154320090530: 1544 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1545 Bump __FreeBSD_version to 800094. 1546 154720090529: 1548 Add mnt_xflag field to 'struct mount'. File system modules need to be 1549 rebuilt. 1550 Bump __FreeBSD_version to 800093. 1551 155220090528: 1553 The compiling option ADAPTIVE_SX has been retired while it has been 1554 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1555 The KPI for sx_init_flags() changes as accepting flags: 1556 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1557 been introduced in order to handle the reversed logic. 1558 Bump __FreeBSD_version to 800092. 1559 156020090527: 1561 Add support for hierarchical jails. Remove global securelevel. 1562 Bump __FreeBSD_version to 800091. 1563 156420090523: 1565 The layout of struct vnet_net has changed, therefore modules 1566 need to be rebuilt. 1567 Bump __FreeBSD_version to 800090. 1568 156920090523: 1570 The newly imported zic(8) produces a new format in the output. Please 1571 run tzsetup(8) to install the newly created data to /etc/localtime. 1572 157320090520: 1574 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1575 hw.usb.* and is now consistent again with previous releases. 1576 157720090520: 1578 802.11 monitor mode support was revised and driver api's were changed. 1579 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1580 of DLT_IEEE802_11. No user-visible data structures were changed but 1581 applications that use DLT_IEEE802_11 may require changes. 1582 Bump __FreeBSD_version to 800088. 1583 158420090430: 1585 The layout of the following structs has changed: sysctl_oid, 1586 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1587 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1588 panics may be experienced. World rebuild is required for 1589 correctly checking networking state from userland. 1590 Bump __FreeBSD_version to 800085. 1591 159220090429: 1593 MLDv2 and Source-Specific Multicast (SSM) have been merged 1594 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1595 The implementation of SSM within FreeBSD's IPv6 stack closely 1596 follows the IPv4 implementation. 1597 1598 For kernel developers: 1599 1600 * The most important changes are that the ip6_output() and 1601 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1602 and this lock has been downgraded to a non-recursive mutex. 1603 1604 * As with the changes to the IPv4 stack to support SSM, filtering 1605 of inbound multicast traffic must now be performed by transport 1606 protocols within the IPv6 stack. This does not apply to TCP and 1607 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1608 1609 * The KPIs used by IPv6 multicast are similar to those used by 1610 the IPv4 stack, with the following differences: 1611 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1612 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1613 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1614 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1615 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1616 for MLDv1 have an additional 'timer' argument which is used to 1617 jitter the initial membership report for the solicited-node 1618 multicast membership on-link. 1619 * This is not strictly needed for MLDv2, which already jitters 1620 its report transmissions. However, the 'timer' argument is 1621 preserved in case MLDv1 is active on the interface. 1622 1623 * The KAME linked-list based IPv6 membership implementation has 1624 been refactored to use a vector similar to that used by the IPv4 1625 stack. 1626 Code which maintains a list of its own multicast memberships 1627 internally, e.g. carp, has been updated to reflect the new 1628 semantics. 1629 1630 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1631 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1632 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1633 implementation constraint which needs to be addressed in HEAD. 1634 1635 For application developers: 1636 1637 * The changes are broadly similar to those made for the IPv4 1638 stack. 1639 1640 * The use of IPv4 and IPv6 multicast socket options on the same 1641 socket, using mapped addresses, HAS NOT been tested or supported. 1642 1643 * There are a number of issues with the implementation of various 1644 IPv6 multicast APIs which need to be resolved in the API surface 1645 before the implementation is fully compatible with KAME userland 1646 use, and these are mostly to do with interface index treatment. 1647 1648 * The literature available discusses the use of either the delta / ASM 1649 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1650 using setsourcefilter(3)/getsourcefilter(3). For more information 1651 please refer to RFC 3768, 'Socket Interface Extensions for 1652 Multicast Source Filters'. 1653 1654 * Applications which use the published RFC 3678 APIs should be fine. 1655 1656 For systems administrators: 1657 1658 * The mtest(8) utility has been refactored to support IPv6, in 1659 addition to IPv4. Interface addresses are no longer accepted 1660 as arguments, their names must be used instead. The utility 1661 will map the interface name to its first IPv4 address as 1662 returned by getifaddrs(3). 1663 1664 * The ifmcstat(8) utility has also been updated to print the MLDv2 1665 endpoint state and source filter lists via sysctl(3). 1666 1667 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1668 loopback of IPv6 multicast datagrams by default; it defaults to 1 1669 to preserve the existing behaviour. Disabling multicast loopback is 1670 recommended for optimal system performance. 1671 1672 * The IPv6 MROUTING code has been changed to examine this sysctl 1673 instead of attempting to perform a group lookup before looping 1674 back forwarded datagrams. 1675 1676 Bump __FreeBSD_version to 800084. 1677 167820090422: 1679 Implement low-level Bluetooth HCI API. 1680 Bump __FreeBSD_version to 800083. 1681 168220090419: 1683 The layout of struct malloc_type, used by modules to register new 1684 memory allocation types, has changed. Most modules will need to 1685 be rebuilt or panics may be experienced. 1686 Bump __FreeBSD_version to 800081. 1687 168820090415: 1689 Anticipate overflowing inp_flags - add inp_flags2. 1690 This changes most offsets in inpcb, so checking v4 connection 1691 state will require a world rebuild. 1692 Bump __FreeBSD_version to 800080. 1693 169420090415: 1695 Add an llentry to struct route and struct route_in6. Modules 1696 embedding a struct route will need to be recompiled. 1697 Bump __FreeBSD_version to 800079. 1698 169920090414: 1700 The size of rt_metrics_lite and by extension rtentry has changed. 1701 Networking administration apps will need to be recompiled. 1702 The route command now supports show as an alias for get, weighting 1703 of routes, sticky and nostick flags to alter the behavior of stateful 1704 load balancing. 1705 Bump __FreeBSD_version to 800078. 1706 170720090408: 1708 Do not use Giant for kbdmux(4) locking. This is wrong and 1709 apparently causing more problems than it solves. This will 1710 re-open the issue where interrupt handlers may race with 1711 kbdmux(4) in polling mode. Typical symptoms include (but 1712 not limited to) duplicated and/or missing characters when 1713 low level console functions (such as gets) are used while 1714 interrupts are enabled (for example geli password prompt, 1715 mountroot prompt etc.). Disabling kbdmux(4) may help. 1716 171720090407: 1718 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1719 kernel modules referencing any of the above need to be recompiled. 1720 Bump __FreeBSD_version to 800075. 1721 172220090320: 1723 GEOM_PART has become the default partition slicer for storage devices, 1724 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1725 introduces some changes: 1726 1727 MSDOS/EBR: the devices created from MSDOS extended partition entries 1728 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1729 to devices with offset-based names. fstabs may need to be modified. 1730 1731 BSD: the "geometry does not match label" warning is harmless in most 1732 cases but it points to problems in file system misalignment with 1733 disk geometry. The "c" partition is now implicit, covers the whole 1734 top-level drive and cannot be (mis)used by users. 1735 1736 General: Kernel dumps are now not allowed to be written to devices 1737 whose partition types indicate they are meant to be used for file 1738 systems (or, in case of MSDOS partitions, as something else than 1739 the "386BSD" type). 1740 1741 Most of these changes date approximately from 200812. 1742 174320090319: 1744 The uscanner(4) driver has been removed from the kernel. This follows 1745 Linux removing theirs in 2.6 and making libusb the default interface 1746 (supported by sane). 1747 174820090319: 1749 The multicast forwarding code has been cleaned up. netstat(1) 1750 only relies on KVM now for printing bandwidth upcall meters. 1751 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1752 ip6_mroute_mod respectively. The config(5) options for statically 1753 compiling this code remain the same, i.e. 'options MROUTING'. 1754 175520090315: 1756 Support for the IFF_NEEDSGIANT network interface flag has been 1757 removed, which means that non-MPSAFE network device drivers are no 1758 longer supported. In particular, if_ar, if_sr, and network device 1759 drivers from the old (legacy) USB stack can no longer be built or 1760 used. 1761 176220090313: 1763 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1764 a bunch of new language catalog files have also been added. 1765 This means that some common libc messages are now localized and 1766 they depend on the LC_MESSAGES environmental variable. 1767 176820090313: 1769 The k8temp(4) driver has been renamed to amdtemp(4) since 1770 support for Family 10 and Family 11 CPU families was added. 1771 177220090309: 1773 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1774 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1775 1776 For kernel developers, the most important changes are that the 1777 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1778 and this lock has been downgraded to a non-recursive mutex. 1779 1780 Transport protocols (UDP, Raw IP) are now responsible for filtering 1781 inbound multicast traffic according to group membership and source 1782 filters. The imo_multicast_filter() KPI exists for this purpose. 1783 Transports which do not use multicast (SCTP, TCP) already reject 1784 multicast by default. Forwarding and receive performance may improve 1785 as a mutex acquisition is no longer needed in the ip_input() 1786 low-level input path. in_addmulti() and in_delmulti() are shimmed 1787 to new KPIs which exist to support SSM in-kernel. 1788 1789 For application developers, it is recommended that loopback of 1790 multicast datagrams be disabled for best performance, as this 1791 will still cause the lock to be taken for each looped-back 1792 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1793 be tuned to 0 to disable loopback by default; it defaults to 1 1794 to preserve the existing behaviour. 1795 1796 For systems administrators, to obtain best performance with 1797 multicast reception and multiple groups, it is always recommended 1798 that a card with a suitably precise hash filter is used. Hash 1799 collisions will still result in the lock being taken within the 1800 transport protocol input path to check group membership. 1801 1802 If deploying FreeBSD in an environment with IGMP snooping switches, 1803 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1804 enabled; this forces 224.0.0.0/24 group membership to be announced 1805 via IGMP. 1806 1807 The size of 'struct igmpstat' has changed; netstat needs to be 1808 recompiled to reflect this. 1809 Bump __FreeBSD_version to 800070. 1810 181120090309: 1812 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1813 updated to use it. This requires a buildworld/installworld in order to 1814 update the library and dependencies (usbconfig, etc). Its advisable to 1815 rebuild all ports which uses libusb. More specific directions are given 1816 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1817 libusb are no longer required and can be removed. 1818 181920090302: 1820 A workaround is committed to allow the creation of System V shared 1821 memory segment of size > 2 GB on the 64-bit architectures. 1822 Due to a limitation of the existing ABI, the shm_segsz member 1823 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1824 wrong for large segments. Note that limits must be explicitly 1825 raised to allow such segments to be created. 1826 182720090301: 1828 The layout of struct ifnet has changed, requiring a rebuild of all 1829 network device driver modules. 1830 183120090227: 1832 The /dev handling for the new USB stack has changed, a 1833 buildworld/installworld is required for libusb20. 1834 183520090223: 1836 The new USB2 stack has now been permanently moved in and all kernel and 1837 module names reverted to their previous values (eg, usb, ehci, ohci, 1838 ums, ...). The old usb stack can be compiled in by prefixing the name 1839 with the letter 'o', the old usb modules have been removed. 1840 Updating entry 20090216 for xorg and 20090215 for libmap may still 1841 apply. 1842 184320090217: 1844 The rc.conf(5) option if_up_delay has been renamed to 1845 defaultroute_delay to better reflect its purpose. If you have 1846 customized this setting in /etc/rc.conf you need to update it to 1847 use the new name. 1848 184920090216: 1850 xorg 7.4 wants to configure its input devices via hald which does not 1851 yet work with USB2. If the keyboard/mouse does not work in xorg then 1852 add 1853 Option "AllowEmptyInput" "off" 1854 to your ServerLayout section. This will cause X to use the configured 1855 kbd and mouse sections from your xorg.conf. 1856 185720090215: 1858 The GENERIC kernels for all architectures now default to the new USB2 1859 stack. No kernel config options or code have been removed so if a 1860 problem arises please report it and optionally revert to the old USB 1861 stack. If you are loading USB kernel modules or have a custom kernel 1862 that includes GENERIC then ensure that usb names are also changed over, 1863 eg uftdi -> usb2_serial_ftdi. 1864 1865 Older programs linked against the ports libusb 0.1 need to be 1866 redirected to the new stack's libusb20. /etc/libmap.conf can 1867 be used for this: 1868 # Map old usb library to new one for usb2 stack 1869 libusb-0.1.so.8 libusb20.so.1 1870 187120090209: 1872 All USB ethernet devices now attach as interfaces under the name ueN 1873 (eg. ue0). This is to provide a predictable name as vendors often 1874 change usb chipsets in a product without notice. 1875 187620090203: 1877 The ichsmb(4) driver has been changed to require SMBus slave 1878 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1879 All of the other SMBus controller drivers require left-justified 1880 slave addresses, so this change makes all the drivers provide the 1881 same interface. 1882 188320090201: 1884 INET6 statistics (struct ip6stat) was updated. 1885 netstat(1) needs to be recompiled. 1886 188720090119: 1888 NTFS has been removed from GENERIC kernel on amd64 to match 1889 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1890 will load ntfs.ko module automatically when NTFS support is 1891 actually needed, unless ntfs.ko is not installed or security 1892 level prohibits loading kernel modules. If either is the case, 1893 "options NTFS" has to be added into kernel config. 1894 189520090115: 1896 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1897 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1898 800061. User space tools that rely on the size of struct tcpcb in 1899 tcp_var.h (e.g. sockstat) need to be recompiled. 1900 190120081225: 1902 ng_tty(4) module updated to match the new TTY subsystem. 1903 Due to API change, user-level applications must be updated. 1904 New API support added to mpd5 CVS and expected to be present 1905 in next mpd5.3 release. 1906 190720081219: 1908 With __FreeBSD_version 800060 the makefs tool is part of 1909 the base system (it was a port). 1910 191120081216: 1912 The afdata and ifnet locks have been changed from mutexes to 1913 rwlocks, network modules will need to be re-compiled. 1914 191520081214: 1916 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1917 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1918 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1919 architecture and 40 bytes on 64-bit architecture. The userland 1920 applications "arp" and "ndp" have been updated accordingly. 1921 The output from "netstat -r" shows only routing entries and 1922 none of the L2 information. 1923 192420081130: 1925 __FreeBSD_version 800057 marks the switchover from the 1926 binary ath hal to source code. Users must add the line: 1927 1928 options AH_SUPPORT_AR5416 1929 1930 to their kernel config files when specifying: 1931 1932 device ath_hal 1933 1934 The ath_hal module no longer exists; the code is now compiled 1935 together with the driver in the ath module. It is now 1936 possible to tailor chip support (i.e. reduce the set of chips 1937 and thereby the code size); consult ath_hal(4) for details. 1938 193920081121: 1940 __FreeBSD_version 800054 adds memory barriers to 1941 <machine/atomic.h>, new interfaces to ifnet to facilitate 1942 multiple hardware transmit queues for cards that support 1943 them, and a lock-less ring-buffer implementation to 1944 enable drivers to more efficiently manage queueing of 1945 packets. 1946 194720081117: 1948 A new version of ZFS (version 13) has been merged to -HEAD. 1949 This version has zpool attribute "listsnapshots" off by 1950 default, which means "zfs list" does not show snapshots, 1951 and is the same as Solaris behavior. 1952 195320081028: 1954 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1955 195620081009: 1957 The uhci, ohci, ehci and slhci USB Host controller drivers have 1958 been put into separate modules. If you load the usb module 1959 separately through loader.conf you will need to load the 1960 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1961 controller add the following to loader.conf: 1962 1963 uhci_load="YES" 1964 ehci_load="YES" 1965 196620081009: 1967 The ABI used by the PMC toolset has changed. Please keep 1968 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1969 sync. 1970 197120081009: 1972 atapci kernel module now includes only generic PCI ATA 1973 driver. AHCI driver moved to ataahci kernel module. 1974 All vendor-specific code moved into separate kernel modules: 1975 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1976 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1977 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1978 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1979 198020080820: 1981 The TTY subsystem of the kernel has been replaced by a new 1982 implementation, which provides better scalability and an 1983 improved driver model. Most common drivers have been migrated to 1984 the new TTY subsystem, while others have not. The following 1985 drivers have not yet been ported to the new TTY layer: 1986 1987 PCI/ISA: 1988 cy, digi, rc, rp, sio 1989 1990 USB: 1991 ubser, ucycom 1992 1993 Line disciplines: 1994 ng_h4, ng_tty, ppp, sl, snp 1995 1996 Adding these drivers to your kernel configuration file shall 1997 cause compilation to fail. 1998 199920080818: 2000 ntpd has been upgraded to 4.2.4p5. 2001 200220080801: 2003 OpenSSH has been upgraded to 5.1p1. 2004 2005 For many years, FreeBSD's version of OpenSSH preferred DSA 2006 over RSA for host and user authentication keys. With this 2007 upgrade, we've switched to the vendor's default of RSA over 2008 DSA. This may cause upgraded clients to warn about unknown 2009 host keys even for previously known hosts. Users should 2010 follow the usual procedure for verifying host keys before 2011 accepting the RSA key. 2012 2013 This can be circumvented by setting the "HostKeyAlgorithms" 2014 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2015 command line. 2016 2017 Please note that the sequence of keys offered for 2018 authentication has been changed as well. You may want to 2019 specify IdentityFile in a different order to revert this 2020 behavior. 2021 202220080713: 2023 The sio(4) driver has been removed from the i386 and amd64 2024 kernel configuration files. This means uart(4) is now the 2025 default serial port driver on those platforms as well. 2026 2027 To prevent collisions with the sio(4) driver, the uart(4) driver 2028 uses different names for its device nodes. This means the 2029 onboard serial port will now most likely be called "ttyu0" 2030 instead of "ttyd0". You may need to reconfigure applications to 2031 use the new device names. 2032 2033 When using the serial port as a boot console, be sure to update 2034 /boot/device.hints and /etc/ttys before booting the new kernel. 2035 If you forget to do so, you can still manually specify the hints 2036 at the loader prompt: 2037 2038 set hint.uart.0.at="isa" 2039 set hint.uart.0.port="0x3F8" 2040 set hint.uart.0.flags="0x10" 2041 set hint.uart.0.irq="4" 2042 boot -s 2043 204420080609: 2045 The gpt(8) utility has been removed. Use gpart(8) to partition 2046 disks instead. 2047 204820080603: 2049 The version that Linuxulator emulates was changed from 2.4.2 2050 to 2.6.16. If you experience any problems with Linux binaries 2051 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2052 if it fixes the problem contact emulation mailing list. 2053 205420080525: 2055 ISDN4BSD (I4B) was removed from the src tree. You may need to 2056 update a your kernel configuration and remove relevant entries. 2057 205820080509: 2059 I have checked in code to support multiple routing tables. 2060 See the man pages setfib(1) and setfib(2). 2061 This is a hopefully backwards compatible version, 2062 but to make use of it you need to compile your kernel 2063 with options ROUTETABLES=2 (or more up to 16). 2064 206520080420: 2066 The 802.11 wireless support was redone to enable multi-bss 2067 operation on devices that are capable. The underlying device 2068 is no longer used directly but instead wlanX devices are 2069 cloned with ifconfig. This requires changes to rc.conf files. 2070 For example, change: 2071 ifconfig_ath0="WPA DHCP" 2072 to 2073 wlans_ath0=wlan0 2074 ifconfig_wlan0="WPA DHCP" 2075 see rc.conf(5) for more details. In addition, mergemaster of 2076 /etc/rc.d is highly recommended. Simultaneous update of userland 2077 and kernel wouldn't hurt either. 2078 2079 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2080 modules were merged into the base wlan module. All references 2081 to these modules (e.g. in kernel config files) must be removed. 2082 208320080408: 2084 psm(4) has gained write(2) support in native operation level. 2085 Arbitrary commands can be written to /dev/psm%d and status can 2086 be read back from it. Therefore, an application is responsible 2087 for status validation and error recovery. It is a no-op in 2088 other operation levels. 2089 209020080312: 2091 Support for KSE threading has been removed from the kernel. To 2092 run legacy applications linked against KSE libmap.conf may 2093 be used. The following libmap.conf may be used to ensure 2094 compatibility with any prior release: 2095 2096 libpthread.so.1 libthr.so.1 2097 libpthread.so.2 libthr.so.2 2098 libkse.so.3 libthr.so.3 2099 210020080301: 2101 The layout of struct vmspace has changed. This affects libkvm 2102 and any executables that link against libkvm and use the 2103 kvm_getprocs() function. In particular, but not exclusively, 2104 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2105 The effects are minimal, but it's advisable to upgrade world 2106 nonetheless. 2107 210820080229: 2109 The latest em driver no longer has support in it for the 2110 82575 adapter, this is now moved to the igb driver. The 2111 split was done to make new features that are incompatible 2112 with older hardware easier to do. 2113 211420080220: 2115 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2116 likewise the kernel option is now GEOM_LINUX_LVM. 2117 211820080211: 2119 The default NFS mount mode has changed from UDP to TCP for 2120 increased reliability. If you rely on (insecurely) NFS 2121 mounting across a firewall you may need to update your 2122 firewall rules. 2123 212420080208: 2125 Belatedly note the addition of m_collapse for compacting 2126 mbuf chains. 2127 212820080126: 2129 The fts(3) structures have been changed to use adequate 2130 integer types for their members and so to be able to cope 2131 with huge file trees. The old fts(3) ABI is preserved 2132 through symbol versioning in libc, so third-party binaries 2133 using fts(3) should still work, although they will not take 2134 advantage of the extended types. At the same time, some 2135 third-party software might fail to build after this change 2136 due to unportable assumptions made in its source code about 2137 fts(3) structure members. Such software should be fixed 2138 by its vendor or, in the worst case, in the ports tree. 2139 FreeBSD_version 800015 marks this change for the unlikely 2140 case that a portable fix is impossible. 2141 214220080123: 2143 To upgrade to -current after this date, you must be running 2144 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2145 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2146 214720071128: 2148 The ADAPTIVE_GIANT kernel option has been retired because its 2149 functionality is the default now. 2150 215120071118: 2152 The AT keyboard emulation of sunkbd(4) has been turned on 2153 by default. In order to make the special symbols of the Sun 2154 keyboards driven by sunkbd(4) work under X these now have 2155 to be configured the same way as Sun USB keyboards driven 2156 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2157 2158 Option "XkbLayout" "us" 2159 Option "XkbRules" "xorg" 2160 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2161 216220071024: 2163 It has been decided that it is desirable to provide ABI 2164 backwards compatibility to the FreeBSD 4/5/6 versions of the 2165 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2166 broken with the introduction of PCI domain support (see the 2167 20070930 entry). Unfortunately, this required the ABI of 2168 PCIOCGETCONF to be broken again in order to be able to 2169 provide backwards compatibility to the old version of that 2170 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2171 again. As for prominent ports this affects neither pciutils 2172 nor xorg-server this time, the hal port needs to be rebuilt 2173 however. 2174 217520071020: 2176 The misnamed kthread_create() and friends have been renamed 2177 to kproc_create() etc. Many of the callers already 2178 used kproc_start().. 2179 I will return kthread_create() and friends in a while 2180 with implementations that actually create threads, not procs. 2181 Renaming corresponds with version 800002. 2182 218320071010: 2184 RELENG_7 branched. 2185 2186COMMON ITEMS: 2187 2188 General Notes 2189 ------------- 2190 Avoid using make -j when upgrading. While generally safe, there are 2191 sometimes problems using -j to upgrade. If your upgrade fails with 2192 -j, please try again without -j. From time to time in the past there 2193 have been problems using -j with buildworld and/or installworld. This 2194 is especially true when upgrading between "distant" versions (eg one 2195 that cross a major release boundary or several minor releases, or when 2196 several months have passed on the -current branch). 2197 2198 Sometimes, obscure build problems are the result of environment 2199 poisoning. This can happen because the make utility reads its 2200 environment when searching for values for global variables. To run 2201 your build attempts in an "environmental clean room", prefix all make 2202 commands with 'env -i '. See the env(1) manual page for more details. 2203 2204 When upgrading from one major version to another it is generally best 2205 to upgrade to the latest code in the currently installed branch first, 2206 then do an upgrade to the new branch. This is the best-tested upgrade 2207 path, and has the highest probability of being successful. Please try 2208 this approach before reporting problems with a major version upgrade. 2209 2210 When upgrading a live system, having a root shell around before 2211 installing anything can help undo problems. Not having a root shell 2212 around can lead to problems if pam has changed too much from your 2213 starting point to allow continued authentication after the upgrade. 2214 2215 ZFS notes 2216 --------- 2217 When upgrading the boot ZFS pool to a new version, always follow 2218 these two steps: 2219 2220 1.) recompile and reinstall the ZFS boot loader and boot block 2221 (this is part of "make buildworld" and "make installworld") 2222 2223 2.) update the ZFS boot block on your boot drive 2224 2225 The following example updates the ZFS boot block on the first 2226 partition (freebsd-boot) of a GPT partitioned drive ad0: 2227 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2228 2229 Non-boot pools do not need these updates. 2230 2231 To build a kernel 2232 ----------------- 2233 If you are updating from a prior version of FreeBSD (even one just 2234 a few days old), you should follow this procedure. It is the most 2235 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2236 2237 make kernel-toolchain 2238 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2239 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2240 2241 To test a kernel once 2242 --------------------- 2243 If you just want to boot a kernel once (because you are not sure 2244 if it works, or if you want to boot a known bad kernel to provide 2245 debugging information) run 2246 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2247 nextboot -k testkernel 2248 2249 To just build a kernel when you know that it won't mess you up 2250 -------------------------------------------------------------- 2251 This assumes you are already running a CURRENT system. Replace 2252 ${arch} with the architecture of your machine (e.g. "i386", 2253 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2254 2255 cd src/sys/${arch}/conf 2256 config KERNEL_NAME_HERE 2257 cd ../compile/KERNEL_NAME_HERE 2258 make depend 2259 make 2260 make install 2261 2262 If this fails, go to the "To build a kernel" section. 2263 2264 To rebuild everything and install it on the current system. 2265 ----------------------------------------------------------- 2266 # Note: sometimes if you are running current you gotta do more than 2267 # is listed here if you are upgrading from a really old current. 2268 2269 <make sure you have good level 0 dumps> 2270 make buildworld 2271 make kernel KERNCONF=YOUR_KERNEL_HERE 2272 [1] 2273 <reboot in single user> [3] 2274 mergemaster -p [5] 2275 make installworld 2276 mergemaster -i [4] 2277 make delete-old [6] 2278 <reboot> 2279 2280 To cross-install current onto a separate partition 2281 -------------------------------------------------- 2282 # In this approach we use a separate partition to hold 2283 # current's root, 'usr', and 'var' directories. A partition 2284 # holding "/", "/usr" and "/var" should be about 2GB in 2285 # size. 2286 2287 <make sure you have good level 0 dumps> 2288 <boot into -stable> 2289 make buildworld 2290 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2291 <maybe newfs current's root partition> 2292 <mount current's root partition on directory ${CURRENT_ROOT}> 2293 make installworld DESTDIR=${CURRENT_ROOT} 2294 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2295 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2296 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2297 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2298 <reboot into current> 2299 <do a "native" rebuild/install as described in the previous section> 2300 <maybe install compatibility libraries from ports/misc/compat*> 2301 <reboot> 2302 2303 2304 To upgrade in-place from stable to current 2305 ---------------------------------------------- 2306 <make sure you have good level 0 dumps> 2307 make buildworld [9] 2308 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2309 [1] 2310 <reboot in single user> [3] 2311 mergemaster -p [5] 2312 make installworld 2313 mergemaster -i [4] 2314 make delete-old [6] 2315 <reboot> 2316 2317 Make sure that you've read the UPDATING file to understand the 2318 tweaks to various things you need. At this point in the life 2319 cycle of current, things change often and you are on your own 2320 to cope. The defaults can also change, so please read ALL of 2321 the UPDATING entries. 2322 2323 Also, if you are tracking -current, you must be subscribed to 2324 freebsd-current@freebsd.org. Make sure that before you update 2325 your sources that you have read and understood all the recent 2326 messages there. If in doubt, please track -stable which has 2327 much fewer pitfalls. 2328 2329 [1] If you have third party modules, such as vmware, you 2330 should disable them at this point so they don't crash your 2331 system on reboot. 2332 2333 [3] From the bootblocks, boot -s, and then do 2334 fsck -p 2335 mount -u / 2336 mount -a 2337 cd src 2338 adjkerntz -i # if CMOS is wall time 2339 Also, when doing a major release upgrade, it is required that 2340 you boot into single user mode to do the installworld. 2341 2342 [4] Note: This step is non-optional. Failure to do this step 2343 can result in a significant reduction in the functionality of the 2344 system. Attempting to do it by hand is not recommended and those 2345 that pursue this avenue should read this file carefully, as well 2346 as the archives of freebsd-current and freebsd-hackers mailing lists 2347 for potential gotchas. The -U option is also useful to consider. 2348 See mergemaster(8) for more information. 2349 2350 [5] Usually this step is a noop. However, from time to time 2351 you may need to do this if you get unknown user in the following 2352 step. It never hurts to do it all the time. You may need to 2353 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2354 install) after the buildworld before this step if you last updated 2355 from current before 20130425 or from -stable before 20130430. 2356 2357 [6] This only deletes old files and directories. Old libraries 2358 can be deleted by "make delete-old-libs", but you have to make 2359 sure that no program is using those libraries anymore. 2360 2361 [8] In order to have a kernel that can run the 4.x binaries needed to 2362 do an installworld, you must include the COMPAT_FREEBSD4 option in 2363 your kernel. Failure to do so may leave you with a system that is 2364 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2365 required to run the 5.x binaries on more recent kernels. And so on 2366 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2367 2368 Make sure that you merge any new devices from GENERIC since the 2369 last time you updated your kernel config file. 2370 2371 [9] When checking out sources, you must include the -P flag to have 2372 cvs prune empty directories. 2373 2374 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2375 "?=" instead of the "=" assignment operator, so that buildworld can 2376 override the CPUTYPE if it needs to. 2377 2378 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2379 not on the command line, or in /etc/make.conf. buildworld will 2380 warn if it is improperly defined. 2381FORMAT: 2382 2383This file contains a list, in reverse chronological order, of major 2384breakages in tracking -current. It is not guaranteed to be a complete 2385list of such breakages, and only contains entries since October 10, 2007. 2386If you need to see UPDATING entries from before that date, you will need 2387to fetch an UPDATING file from an older FreeBSD release. 2388 2389Copyright information: 2390 2391Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2392 2393Redistribution, publication, translation and use, with or without 2394modification, in full or in part, in any form or format of this 2395document are permitted without further permission from the author. 2396 2397THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2398IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2399WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2400DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2401INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2402(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2403SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2404HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2405STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2406IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2407POSSIBILITY OF SUCH DAMAGE. 2408 2409Contact Warner Losh if you have any questions about your use of 2410this document. 2411 2412$FreeBSD: releng/10.3/UPDATING 320912 2017-07-12 08:07:55Z delphij $ 2413