UPDATING revision 299068
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 1920160504 p33 FreeBSD-SA-16:17.openssl 20 FreeBSD-EN-16:08.zfs 21 22 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 23 24 Fix memory leak in ZFS. [EN-16:08] 25 2620160429 p32 FreeBSD-SA-16:16.ntp 27 28 Fix multiple vulnerabilities of ntp. 29 3020160316 p31 FreeBSD-SA-16:14.openssh-xauth 31 FreeBSD-SA-16:15.sysarch 32 FreeBSD-EN-16:04.hyperv 33 34 Fix OpenSSH xauth(1) command injection. [SA-16:14] 35 Fix incorrect argument validation in sysarch(2). [SA-16:15] 36 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 37 3820160303 p30 FreeBSD-SA-16:12.openssl 39 40 Fix multiple vulnerabilities of OpenSSL. 41 4220160130 p29 FreeBSD-SA-16:11.openssl 43 44 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 45 4620160127 p28 FreeBSD-SA-16:09.ntp 47 FreeBSD-SA-16:10.linux 48 49 Fix multiple vulnerabilities of ntp. [SA-16:09] 50 51 Fix Linux compatibility layer issetugid(2) system call 52 vulnerability. [SA-16:10] 53 5420160114 p27 FreeBSD-SA-16:07.openssh 55 56 Fix OpenSSH client information leak. [SA-16:07] 57 5820160114 p26 FreeBSD-EN-16:02.pf 59 FreeBSD-EN-16:03.yplib 60 FreeBSD-SA-16:01.sctp 61 FreeBSD-SA-16:02.ntp 62 FreeBSD-SA-16:03.linux 63 FreeBSD-SA-16:04.linux 64 FreeBSD-SA-16:05.tcp 65 FreeBSD-SA-16:06.bsnmpd 66 67 Fix pf(4) generating bad TCP checksums. [EN-16:02] 68 Fix infinite loop in YP/NIS client library. [EN-16:03] 69 Fix remote denial of service in SCTP. [SA-16:01] 70 Update NTP to 4.2.8p5. [SA-16:02] 71 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 72 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 73 Fix crash in TCP MD5 signatures. [SA-16:05] 74 Fix insecure default permissions for snmpd.config. [SA-16:06] 75 7620151205 p25 FreeBSD-SA-15:26.openssl 77 78 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 79 8020151104 p24 FreeBSD-SA-15:25.ntp [revised] 81 FreeBSD-EN-15:19.kqueue 82 FreeBSD-EN-15:20.vm 83 84 Fix regression in ntpd(8) lacking support for RAWDCF reference 85 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 86 87 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 88 89 Fix applications exiting due to segmentation violation on a correct 90 memory address. [EN-15:20] 91 9220151026: p23 FreeBSD-SA-15:25.ntp 93 94 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 95 96 The configuration file syntax has been changed, thus mergemaster 97 run is recommended. Now the "kod" parameter requires "limited" 98 parameter. If the ntp.conf is not updated, the ntpd will run 99 successfully, but with KoD disabled. 100 10120151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 102 Revised patch to address a regression that prevents NIS from working. 103 10420150929: p21 FreeBSD-SA-15:24.rpcbind 105 106 Fix rpcbind(8) remote denial of service. [SA-15:24] 107 10820150916: p20 FreeBSD-EN-15:18.pkg 109 110 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 111 11220150825: p19 FreeBSD-SA-15:21.amd64 113 FreeBSD-SA-15:22.openssh 114 FreeBSD-EN-15:14.ixgbe 115 FreeBSD-EN-15:15.pkg 116 117 Fix local privilege escalation in IRET handler. [SA-15:21] 118 119 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 120 121 Disabled ixgbe(4) flow-director support. [EN-15:14] 122 123 Fix insufficient check of unsupported pkg(7) signature methods. 124 [EN-15:15] 125 12620150818: p18 FreeBSD-SA-15:20.expat 127 128 Fix multiple integer overflows in expat (libbsdxml) XML parser. 129 [SA-15:20] 130 13120150805: p17 FreeBSD-SA-15:18.bsdpatch 132 FreeBSD-SA-15:19.routed 133 134 Fix patch(1) shell injection vulnerability via ed(1). 135 [SA-15:18] 136 137 Fix routed remote denial of service vulnerability. [SA-15:19] 138 13920150728: p16 FreeBSD-SA-15:14.bsdpatch 140 FreeBSD-SA-15:15.tcp 141 FreeBSD-SA-15:16.openssh 142 143 Fix patch(1) shell injection vulnerability. [SA-15:14] 144 145 Fix resource exhaustion in TCP reassembly. [SA-15:15] 146 147 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 148 14920150721: p15 FreeBSD-SA-15:13.tcp 150 151 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 152 [SA-15:13] 153 15420150630: p14 FreeBSD-EN-15:08.sendmail [revised] 155 FreeBSD-EN-15:09.xlocale 156 FreeBSD-EN-15:10.iconv 157 158 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 159 160 Fix inconsistency between locale and rune locale states. 161 [EN-15:09] 162 163 Improved iconv(3) UTF-7 support. [EN-15:10] 164 16520150618: p13 FreeBSD-EN-15:08.sendmail 166 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 167 16820150612: p12 FreeBSD-SA-15:10.openssl 169 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 170 17120150609: p11 FreeBSD-EN-15:06.file 172 FreeBSD-EN-15:07.zfs 173 174 Updated base system file(1) to 5.22 to address multiple denial 175 of service issues. [EN-15:06] 176 177 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 178 [EN-15:07] 179 18020150513: p10 FreeBSD-EN-15:04.freebsd-update 181 FreeBSD-EN-15:05.ufs 182 183 Fix bug with freebsd-update(8) that does not ensure the previous 184 upgrade was completed. [EN-15:04] 185 186 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 187 18820150407: p9 FreeBSD-SA-15:04.igmp [revised] 189 FreeBSD-SA-15:07.ntp 190 FreeBSD-SA-15:08.bsdinstall 191 FreeBSD-SA-15:09.ipv6 192 193 Improved patch for SA-15:04.igmp. 194 195 Fix multiple vulnerabilities of ntp. [SA-15:07] 196 197 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 198 199 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 200 20120150320: p8 202 Fix patch for SA-15:06.openssl. 203 20420150319: p7 FreeBSD-SA-15:06.openssl 205 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 206 20720150225: p6 FreeBSD-SA-15:04.igmp 208 FreeBSD-EN-15:01.vt 209 FreeBSD-EN-15:02.openssl 210 FreeBSD-EN-15:03.freebsd-update 211 212 Fix integer overflow in IGMP protocol. [SA-15:04] 213 214 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 215 216 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 217 218 Fix freebsd-update libraries update ordering issue. [EN-15:03] 219 22020150127: p5 FreeBSD-SA-15:02.kmem 221 FreeBSD-SA-15:03.sctp 222 223 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 224 vulnerability. [SA-15:02] 225 226 Fix SCTP stream reset vulnerability. [SA-15:03] 227 22820150114: p4 FreeBSD-SA-15:01.openssl 229 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 230 23120141223: p3 FreeBSD-SA-14:31.ntp 232 FreeBSD-EN-14:13.freebsd-update 233 234 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 235 Fix directory deletion issue in freebsd-update. [EN-14:13] 236 23720141217: p2 FreeBSD-SA-14:30.unbound 238 Fix unbound remote denial of service vulnerability. 239 24020141210: p1 FreeBSD-SA-14:27.stdio 241 FreeBSD-SA-14:28.file 242 243 Fix buffer overflow in stdio. [SA-14:27] 244 245 Fix multiple vulnerabilities in file(1) and libmagic(3). 246 [SA-14:28] 247 24820140904: 249 The ofwfb driver, used to provide a graphics console on PowerPC when 250 using vt(4), no longer allows mmap() of all of physical memory. This 251 will prevent Xorg on PowerPC with some ATI graphics cards from 252 initializing properly unless x11-servers/xorg-server is updated to 253 1.12.4_8 or newer. 254 25520140831: 256 The libatf-c and libatf-c++ major versions were downgraded to 0 and 257 1 respectively to match the upstream numbers. They were out of 258 sync because, when they were originally added to FreeBSD, the 259 upstream versions were not respected. These libraries are private 260 and not yet built by default, so renumbering them should be a 261 non-issue. However, unclean source trees will yield broken test 262 programs once the operator executes "make delete-old-libs" after a 263 "make installworld". 264 265 Additionally, the atf-sh binary was made private by moving it into 266 /usr/libexec/. Already-built shell test programs will keep the 267 path to the old binary so they will break after "make delete-old" 268 is run. 269 270 If you are using WITH_TESTS=yes (not the default), wipe the object 271 tree and rebuild from scratch to prevent spurious test failures. 272 This is only needed once: the misnumbered libraries and misplaced 273 binaries have been added to OptionalObsoleteFiles.inc so they will 274 be removed during a clean upgrade. 275 27620140814: 277 The ixgbe tunables now match their sysctl counterparts, for example: 278 hw.ixgbe.enable_aim => hw.ix.enable_aim 279 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 280 28120140801: 282 The NFSv4.1 server committed by r269398 changes the internal 283 function call interfaces used between the NFS and krpc modules. 284 As such, __FreeBSD_version was bumped. 285 28620140729: 287 The default unbound configuration has been modified to address 288 issues with reverse lookups on networks that use private 289 address ranges. If you use the local_unbound service, run 290 "service local_unbound setup" as root to regenerate your 291 configuration, then "service local_unbound reload" to load the 292 new configuration. 293 29420140717: 295 It is no longer necessary to include the dwarf version in your DEBUG 296 options in your kernel config file. The bug that required it to be 297 placed in the config file has bene fixed. DEBUG should now just 298 contain -g. The build system will automatically update things 299 to do the right thing. 300 30120140715: 302 Several ABI breaking changes were merged to CTL and new iSCSI code. 303 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 304 iscsictl need to be rebuilt to work with a new kernel. 305 30620140708: 307 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 308 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 309 which differs from the behaviour controlled by this knob.) 310 31120140608: 312 On i386 and amd64 systems, the onifconsole flag is now set by default 313 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 314 as a login TTY if it is set in the bootloader as an active kernel 315 console. No changes in behavior should result otherwise. To revert to 316 the previous behavior, set ttyu0 to "off" in /etc/ttys. 317 31820140512: 319 Clang and llvm have been upgraded to 3.4.1 release. 320 32120140321: 322 Clang and llvm have been upgraded to 3.4 release. 323 32420140306: 325 If a Makefile in a tests/ directory was auto-generating a Kyuafile 326 instead of providing an explicit one, this would prevent such 327 Makefile from providing its own Kyuafile in the future during 328 NO_CLEAN builds. This has been fixed in the Makefiles but manual 329 intervention is needed to clean an objdir if you use NO_CLEAN: 330 # find /usr/obj -name Kyuafile | xargs rm -f 331 33220140303: 333 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 334 capability mode support. Please note that enabling the feature in 335 kernel is still highly recommended. 336 33720140227: 338 OpenSSH is now built with sandbox support, and will use sandbox as 339 the default privilege separation method. This requires Capsicum 340 capability mode support in kernel. 341 34220140216: 343 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 344 been deprecated and will not be part of FreeBSD 11.0 and later 345 releases. If you use this driver, please consider switching to 346 the nfe(4) driver instead. 347 34820140120: 349 10.0-RELEASE. 350 35120131216: 352 The behavior of gss_pseudo_random() for the krb5 mechanism 353 has changed, for applications requesting a longer random string 354 than produced by the underlying enctype's pseudo-random() function. 355 In particular, the random string produced from a session key of 356 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 357 be different at the 17th octet and later, after this change. 358 The counter used in the PRF+ construction is now encoded as a 359 big-endian integer in accordance with RFC 4402. 360 __FreeBSD_version is bumped to 1000701. 361 36220131108: 363 The WITHOUT_ATF build knob has been removed and its functionality 364 has been subsumed into the more generic WITHOUT_TESTS. If you were 365 using the former to disable the build of the ATF libraries, you 366 should change your settings to use the latter. 367 36820131031: 369 The default version of mtree is nmtree which is obtained from 370 NetBSD. The output is generally the same, but may vary 371 slightly. If you found you need identical output adding 372 "-F freebsd9" to the command line should do the trick. For the 373 time being, the old mtree is available as fmtree. 374 37520131014: 376 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 377 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 378 1.1.4_8 and verify bsdyml not linked in, before running "make 379 delete-old-libs": 380 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 381 or 382 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 383 38420131010: 385 The rc.d/jail script has been updated to support jail(8) 386 configuration file. The "jail_<jname>_*" rc.conf(5) variables 387 for per-jail configuration are automatically converted to 388 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 389 This is transparently backward compatible. See below about some 390 incompatibilities and rc.conf(5) manual page for more details. 391 392 These variables are now deprecated in favor of jail(8) configuration 393 file. One can use "rc.d/jail config <jname>" command to generate 394 a jail(8) configuration file in /var/run/jail.<jname>.conf without 395 running the jail(8) utility. The default pathname of the 396 configuration file is /etc/jail.conf and can be specified by 397 using $jail_conf or $jail_<jname>_conf variables. 398 399 Please note that jail_devfs_ruleset accepts an integer at 400 this moment. Please consider to rewrite the ruleset name 401 with an integer. 402 40320130930: 404 BIND has been removed from the base system. If all you need 405 is a local resolver, simply enable and start the local_unbound 406 service instead. Otherwise, several versions of BIND are 407 available in the ports tree. The dns/bind99 port is one example. 408 409 With this change, nslookup(1) and dig(1) are no longer in the base 410 system. Users should instead use host(1) and drill(1) which are 411 in the base system. Alternatively, nslookup and dig can 412 be obtained by installing the dns/bind-tools port. 413 41420130916: 415 With the addition of unbound(8), a new unbound user is now 416 required during installworld. "mergemaster -p" can be used to 417 add the user prior to installworld, as documented in the handbook. 418 41920130911: 420 OpenSSH is now built with DNSSEC support, and will by default 421 silently trust signed SSHFP records. This can be controlled with 422 the VerifyHostKeyDNS client configuration setting. DNSSEC support 423 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 424 42520130906: 426 The GNU Compiler Collection and C++ standard library (libstdc++) 427 are no longer built by default on platforms where clang is the system 428 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 429 options in src.conf. 430 43120130905: 432 The PROCDESC kernel option is now part of the GENERIC kernel 433 configuration and is required for the rwhod(8) to work. 434 If you are using custom kernel configuration, you should include 435 'options PROCDESC'. 436 43720130905: 438 The API and ABI related to the Capsicum framework was modified 439 in backward incompatible way. The userland libraries and programs 440 have to be recompiled to work with the new kernel. This includes the 441 following libraries and programs, but the whole buildworld is 442 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 443 kdump, procstat, rwho, rwhod, uniq. 444 44520130903: 446 AES-NI intrinsic support has been added to gcc. The AES-NI module 447 has been updated to use this support. A new gcc is required to build 448 the aesni module on both i386 and amd64. 449 45020130821: 451 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 452 Thus "device padlock_rng" and "device rdrand_rng" should be 453 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 454 45520130813: 456 WITH_ICONV has been split into two feature sets. WITH_ICONV now 457 enables just the iconv* functionality and is now on by default. 458 WITH_LIBICONV_COMPAT enables the libiconv api and link time 459 compatability. Set WITHOUT_ICONV to build the old way. 460 If you have been using WITH_ICONV before, you will very likely 461 need to turn on WITH_LIBICONV_COMPAT. 462 46320130806: 464 INVARIANTS option now enables DEBUG for code with OpenSolaris and 465 Illumos origin, including ZFS. If you have INVARIANTS in your 466 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 467 explicitly. 468 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 469 locks if WITNESS option was set. Because that generated a lot of 470 witness(9) reports and all of them were believed to be false 471 positives, this is no longer done. New option OPENSOLARIS_WITNESS 472 can be used to achieve the previous behavior. 473 47420130806: 475 Timer values in IPv6 data structures now use time_uptime instead 476 of time_second. Although this is not a user-visible functional 477 change, userland utilities which directly use them---ndp(8), 478 rtadvd(8), and rtsold(8) in the base system---need to be updated 479 to r253970 or later. 480 48120130802: 482 find -delete can now delete the pathnames given as arguments, 483 instead of only files found below them or if the pathname did 484 not contain any slashes. Formerly, the following error message 485 would result: 486 487 find: -delete: <path>: relative path potentially not safe 488 489 Deleting the pathnames given as arguments can be prevented 490 without error messages using -mindepth 1 or by changing 491 directory and passing "." as argument to find. This works in the 492 old as well as the new version of find. 493 49420130726: 495 Behavior of devfs rules path matching has been changed. 496 Pattern is now always matched against fully qualified devfs 497 path and slash characters must be explicitly matched by 498 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 499 subdirectories must be reviewed. 500 50120130716: 502 The default ARM ABI has changed to the ARM EABI. The old ABI is 503 incompatible with the ARM EABI and all programs and modules will 504 need to be rebuilt to work with a new kernel. 505 506 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 507 508 NOTE: Support for the old ABI will be removed in the future and 509 users are advised to upgrade. 510 51120130709: 512 pkg_install has been disconnected from the build if you really need it 513 you should add WITH_PKGTOOLS in your src.conf(5). 514 51520130709: 516 Most of network statistics structures were changed to be able 517 keep 64-bits counters. Thus all tools, that work with networking 518 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 519 52020130629: 521 Fix targets that run multiple make's to use && rather than ; 522 so that subsequent steps depend on success of previous. 523 524 NOTE: if building 'universe' with -j* on stable/8 or stable/9 525 it would be better to start the build using bmake, to avoid 526 overloading the machine. 527 52820130618: 529 Fix a bug that allowed a tracing process (e.g. gdb) to write 530 to a memory-mapped file in the traced process's address space 531 even if neither the traced process nor the tracing process had 532 write access to that file. 533 53420130615: 535 CVS has been removed from the base system. An exact copy 536 of the code is available from the devel/cvs port. 537 53820130613: 539 Some people report the following error after the switch to bmake: 540 541 make: illegal option -- J 542 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 543 ... 544 *** [buildworld] Error code 2 545 546 this likely due to an old instance of make in 547 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 548 which src/Makefile will use that blindly, if it exists, so if 549 you see the above error: 550 551 rm -rf `make -V MAKEPATH` 552 553 should resolve it. 554 55520130516: 556 Use bmake by default. 557 Whereas before one could choose to build with bmake via 558 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 559 make. The goal is to remove these knobs for 10-RELEASE. 560 561 It is worth noting that bmake (like gmake) treats the command 562 line as the unit of failure, rather than statements within the 563 command line. Thus '(cd some/where && dosomething)' is safer 564 than 'cd some/where; dosomething'. The '()' allows consistent 565 behavior in parallel build. 566 56720130429: 568 Fix a bug that allows NFS clients to issue READDIR on files. 569 57020130426: 571 The WITHOUT_IDEA option has been removed because 572 the IDEA patent expired. 573 57420130426: 575 The sysctl which controls TRIM support under ZFS has been renamed 576 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 577 enabled by default. 578 57920130425: 580 The mergemaster command now uses the default MAKEOBJDIRPREFIX 581 rather than creating it's own in the temporary directory in 582 order allow access to bootstrapped versions of tools such as 583 install and mtree. When upgrading from version of FreeBSD where 584 the install command does not support -l, you will need to 585 install a new mergemaster command if mergemaster -p is required. 586 This can be accomplished with the command (cd src/usr.sbin/mergemaster 587 && make install). 588 58920130404: 590 Legacy ATA stack, disabled and replaced by new CAM-based one since 591 FreeBSD 9.0, completely removed from the sources. Kernel modules 592 atadisk and atapi*, user-level tools atacontrol and burncd are 593 removed. Kernel option `options ATA_CAM` is now permanently enabled 594 and removed. 595 59620130319: 597 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 598 and socketpair(2). Software, in particular Kerberos, may 599 automatically detect and use these during building. The resulting 600 binaries will not work on older kernels. 601 60220130308: 603 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 604 information, see the respective 20130304 entry). 605 60620130304: 607 Recent commits to callout(9) changed the size of struct callout, 608 so the KBI is probably heavily disturbed. Also, some functions 609 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 610 by macros. Every kernel module using it won't load, so rebuild 611 is requested. 612 613 The ctl device has been re-enabled in GENERIC for i386 and amd64, 614 but does not initialize by default (because of the new CTL_DISABLE 615 option) to save memory. To re-enable it, remove the CTL_DISABLE 616 option from the kernel config file or set kern.cam.ctl.disable=0 617 in /boot/loader.conf. 618 61920130301: 620 The ctl device has been disabled in GENERIC for i386 and amd64. 621 This was done due to the extra memory being allocated at system 622 initialisation time by the ctl driver which was only used if 623 a CAM target device was created. This makes a FreeBSD system 624 unusable on 128MB or less of RAM. 625 62620130208: 627 A new compression method (lz4) has been merged to -HEAD. Please 628 refer to zpool-features(7) for more information. 629 630 Please refer to the "ZFS notes" section of this file for information 631 on upgrading boot ZFS pools. 632 63320130129: 634 A BSD-licensed patch(1) variant has been added and is installed 635 as bsdpatch, being the GNU version the default patch. 636 To inverse the logic and use the BSD-licensed one as default, 637 while having the GNU version installed as gnupatch, rebuild 638 and install world with the WITH_BSD_PATCH knob set. 639 64020130121: 641 Due to the use of the new -l option to install(1) during build 642 and install, you must take care not to directly set the INSTALL 643 make variable in your /etc/make.conf, /etc/src.conf, or on the 644 command line. If you wish to use the -C flag for all installs 645 you may be able to add INSTALL+=-C to /etc/make.conf or 646 /etc/src.conf. 647 64820130118: 649 The install(1) option -M has changed meaning and now takes an 650 argument that is a file or path to append logs to. In the 651 unlikely event that -M was the last option on the command line 652 and the command line contained at least two files and a target 653 directory the first file will have logs appended to it. The -M 654 option served little practical purpose in the last decade so its 655 use is expected to be extremely rare. 656 65720121223: 658 After switching to Clang as the default compiler some users of ZFS 659 on i386 systems started to experience stack overflow kernel panics. 660 Please consider using 'options KSTACK_PAGES=4' in such configurations. 661 66220121222: 663 GEOM_LABEL now mangles label names read from file system metadata. 664 Mangling affect labels containing spaces, non-printable characters, 665 '%' or '"'. Device names in /etc/fstab and other places may need to 666 be updated. 667 66820121217: 669 By default, only the 10 most recent kernel dumps will be saved. To 670 restore the previous behaviour (no limit on the number of kernel dumps 671 stored in the dump directory) add the following line to /etc/rc.conf: 672 673 savecore_flags="" 674 67520121201: 676 With the addition of auditdistd(8), a new auditdistd user is now 677 required during installworld. "mergemaster -p" can be used to 678 add the user prior to installworld, as documented in the handbook. 679 68020121117: 681 The sin6_scope_id member variable in struct sockaddr_in6 is now 682 filled by the kernel before passing the structure to the userland via 683 sysctl or routing socket. This means the KAME-specific embedded scope 684 id in sin6_addr.s6_addr[2] is always cleared in userland application. 685 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 686 __FreeBSD_version is bumped to 1000025. 687 68820121105: 689 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 690 This means that the world and kernel will be compiled with clang 691 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 692 and /usr/bin/cpp. To disable this behavior and revert to building 693 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 694 of current may need to bootstrap WITHOUT_CLANG first if the clang 695 build fails (its compatibility window doesn't extend to the 9 stable 696 branch point). 697 69820121102: 699 The IPFIREWALL_FORWARD kernel option has been removed. Its 700 functionality now turned on by default. 701 70220121023: 703 The ZERO_COPY_SOCKET kernel option has been removed and 704 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 705 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 706 mechanism which is not safe and may result in kernel crashes. 707 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 708 driver supports disposeable external page sized mbuf storage. 709 Proper replacements for both zero-copy mechanisms are under 710 consideration and will eventually lead to complete removal 711 of the two kernel options. 712 71320121023: 714 The IPv4 network stack has been converted to network byte 715 order. The following modules need to be recompiled together 716 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 717 pf(4), ipfw(4), ng_ipfw(4), stf(4). 718 71920121022: 720 Support for non-MPSAFE filesystems was removed from VFS. The 721 VFS_VERSION was bumped, all filesystem modules shall be 722 recompiled. 723 72420121018: 725 All the non-MPSAFE filesystems have been disconnected from 726 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 727 portalfs, smbfs, xfs. 728 72920121016: 730 The interface cloning API and ABI has changed. The following 731 modules need to be recompiled together with kernel: 732 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 733 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 734 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 735 73620121015: 737 The sdhci driver was split in two parts: sdhci (generic SD Host 738 Controller logic) and sdhci_pci (actual hardware driver). 739 No kernel config modifications are required, but if you 740 load sdhc as a module you must switch to sdhci_pci instead. 741 74220121014: 743 Import the FUSE kernel and userland support into base system. 744 74520121013: 746 The GNU sort(1) program has been removed since the BSD-licensed 747 sort(1) has been the default for quite some time and no serious 748 problems have been reported. The corresponding WITH_GNU_SORT 749 knob has also gone. 750 75120121006: 752 The pfil(9) API/ABI for AF_INET family has been changed. Packet 753 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 754 with new kernel. 755 75620121001: 757 The net80211(4) ABI has been changed to allow for improved driver 758 PS-POLL and power-save support. All wireless drivers need to be 759 recompiled to work with the new kernel. 760 76120120913: 762 The random(4) support for the VIA hardware random number 763 generator (`PADLOCK') is no longer enabled unconditionally. 764 Add the padlock_rng device in the custom kernel config if 765 needed. The GENERIC kernels on i386 and amd64 do include the 766 device, so the change only affects the custom kernel 767 configurations. 768 76920120908: 770 The pf(4) packet filter ABI has been changed. pfctl(8) and 771 snmp_pf module need to be recompiled to work with new kernel. 772 77320120828: 774 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 775 to -HEAD. Pools that have empty_bpobj in active state can not be 776 imported read-write with ZFS implementations that do not support 777 this feature. For more information read the zpool-features(5) 778 manual page. 779 78020120727: 781 The sparc64 ZFS loader has been changed to no longer try to auto- 782 detect ZFS providers based on diskN aliases but now requires these 783 to be explicitly listed in the OFW boot-device environment variable. 784 78520120712: 786 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 787 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 788 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 789 79020120712: 791 The following sysctls and tunables have been renamed for consistency 792 with other variables: 793 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 794 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 795 79620120628: 797 The sort utility has been replaced with BSD sort. For now, GNU sort 798 is also available as "gnusort" or the default can be set back to 799 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 800 installed as "bsdsort". 801 80220120611: 803 A new version of ZFS (pool version 5000) has been merged to -HEAD. 804 Starting with this version the old system of ZFS pool versioning 805 is superseded by "feature flags". This concept enables forward 806 compatibility against certain future changes in functionality of ZFS 807 pools. The first read-only compatible "feature flag" for ZFS pools 808 is named "com.delphix:async_destroy". For more information 809 read the new zpool-features(5) manual page. 810 Please refer to the "ZFS notes" section of this file for information 811 on upgrading boot ZFS pools. 812 81320120417: 814 The malloc(3) implementation embedded in libc now uses sources imported 815 as contrib/jemalloc. The most disruptive API change is to 816 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 817 delete it prior to installworld, and optionally re-create it using the 818 new format after rebooting. See malloc.conf(5) for details 819 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 820 NAMESPACE section). 821 82220120328: 823 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 824 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 825 now spelled mips. This is to aid compatibility with third-party 826 software that expects this naming scheme in uname(3). Little-endian 827 settings are unchanged. If you are updating a big-endian mips64 machine 828 from before this change, you may need to set MACHINE_ARCH=mips64 in 829 your environment before the new build system will recognize your machine. 830 83120120306: 832 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 833 platforms. 834 83520120229: 836 Now unix domain sockets behave "as expected" on nullfs(5). Previously 837 nullfs(5) did not pass through all behaviours to the underlying layer, 838 as a result if we bound to a socket on the lower layer we could connect 839 only to the lower path; if we bound to the upper layer we could connect 840 only to the upper path. The new behavior is one can connect to both the 841 lower and the upper paths regardless what layer path one binds to. 842 84320120211: 844 The getifaddrs upgrade path broken with 20111215 has been restored. 845 If you have upgraded in between 20111215 and 20120209 you need to 846 recompile libc again with your kernel. You still need to recompile 847 world to be able to configure CARP but this restriction already 848 comes from 20111215. 849 85020120114: 851 The set_rcvar() function has been removed from /etc/rc.subr. All 852 base and ports rc.d scripts have been updated, so if you have a 853 port installed with a script in /usr/local/etc/rc.d you can either 854 hand-edit the rcvar= line, or reinstall the port. 855 856 An easy way to handle the mass-update of /etc/rc.d: 857 rm /etc/rc.d/* && mergemaster -i 858 85920120109: 860 panic(9) now stops other CPUs in the SMP systems, disables interrupts 861 on the current CPU and prevents other threads from running. 862 This behavior can be reverted using the kern.stop_scheduler_on_panic 863 tunable/sysctl. 864 The new behavior can be incompatible with kern.sync_on_panic. 865 86620111215: 867 The carp(4) facility has been changed significantly. Configuration 868 of the CARP protocol via ifconfig(8) has changed, as well as format 869 of CARP events submitted to devd(8) has changed. See manual pages 870 for more information. The arpbalance feature of carp(4) is currently 871 not supported anymore. 872 873 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 874 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 875 need to be recompiled. 876 87720111122: 878 The acpi_wmi(4) status device /dev/wmistat has been renamed to 879 /dev/wmistat0. 880 88120111108: 882 The option VFS_ALLOW_NONMPSAFE option has been added in order to 883 explicitely support non-MPSAFE filesystems. 884 It is on by default for all supported platform at this present 885 time. 886 88720111101: 888 The broken amd(4) driver has been replaced with esp(4) in the amd64, 889 i386 and pc98 GENERIC kernel configuration files. 890 89120110930: 892 sysinstall has been removed 893 89420110923: 895 The stable/9 branch created in subversion. This corresponds to the 896 RELENG_9 branch in CVS. 897 89820110913: 899 This commit modifies vfs_register() so that it uses a hash 900 calculation to set vfc_typenum, which is enabled by default. 901 The first time a system is booted after this change, the 902 vfc_typenum values will change for all file systems. The 903 main effect of this is a change to the NFS server file handles 904 for file systems that use vfc_typenum in their fsid, such as ZFS. 905 It will, however, prevent vfc_typenum from changing when file 906 systems are loaded in a different order for subsequent reboots. 907 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 908 until you are ready to remount all NFS clients after a reboot. 909 91020110828: 911 Bump the shared library version numbers for libraries that 912 do not use symbol versioning, have changed the ABI compared 913 to stable/8 and which shared library version was not bumped. 914 Done as part of 9.0-RELEASE cycle. 915 91620110815: 917 During the merge of Capsicum features, the fget(9) KPI was modified. 918 This may require the rebuilding of out-of-tree device drivers -- 919 issues have been reported specifically with the nVidia device driver. 920 __FreeBSD_version is bumped to 900041. 921 922 Also, there is a period between 20110811 and 20110814 where the 923 special devices /dev/{stdin,stdout,stderr} did not work correctly. 924 Building world from a kernel during that window may not work. 925 92620110628: 927 The packet filter (pf) code has been updated to OpenBSD 4.5. 928 You need to update userland tools to be in sync with kernel. 929 This update breaks backward compatibility with earlier pfsync(4) 930 versions. Care must be taken when updating redundant firewall setups. 931 93220110608: 933 The following sysctls and tunables are retired on x86 platforms: 934 machdep.hlt_cpus 935 machdep.hlt_logical_cpus 936 The following sysctl is retired: 937 machdep.hyperthreading_allowed 938 The sysctls were supposed to provide a way to dynamically offline and 939 online selected CPUs on x86 platforms, but the implementation has not 940 been reliable especially with SCHED_ULE scheduler. 941 machdep.hyperthreading_allowed tunable is still available to ignore 942 hyperthreading CPUs at OS level. 943 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 944 where X is an APIC ID of a CPU. Be advised, though, that disabling 945 CPUs in non-uniform fashion will result in non-uniform topology and 946 may lead to sub-optimal system performance with SCHED_ULE, which is 947 a default scheduler. 948 94920110607: 950 cpumask_t type is retired and cpuset_t is used in order to describe 951 a mask of CPUs. 952 95320110531: 954 Changes to ifconfig(8) for dynamic address family detection mandate 955 that you are running a kernel of 20110525 or later. Make sure to 956 follow the update procedure to boot a new kernel before installing 957 world. 958 95920110513: 960 Support for sun4v architecture is officially dropped 961 96220110503: 963 Several KPI breaking changes have been committed to the mii(4) layer, 964 the PHY drivers and consequently some Ethernet drivers using mii(4). 965 This means that miibus.ko and the modules of the affected Ethernet 966 drivers need to be recompiled. 967 968 Note to kernel developers: Given that the OUI bit reversion problem 969 was fixed as part of these changes all mii(4) commits related to OUIs, 970 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 971 handling, no longer can be merged verbatim to stable/8 and previous 972 branches. 973 97420110430: 975 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 976 into their kernel configurations along with 'device pci'. 977 97820110427: 979 The default NFS client is now the new NFS client, so fstype "newnfs" 980 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 981 Although mounts via fstype "nfs" will usually work without userland 982 changes, it is recommended that the mount(8) and mount_nfs(8) 983 commands be rebuilt from sources and that a link to mount_nfs called 984 mount_oldnfs be created. The new client is compiled into the 985 kernel with "options NFSCL" and this is needed for diskless root 986 file systems. The GENERIC kernel configs have been changed to use 987 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 988 To use the regular/old client, you can "mount -t oldnfs ...". For 989 a diskless root file system, you must also include a line like: 990 991 vfs.root.mountfrom="oldnfs:" 992 993 in the boot/loader.conf on the root fs on the NFS server to make 994 a diskless root fs use the old client. 995 99620110424: 997 The GENERIC kernels for all architectures now default to the new 998 CAM-based ATA stack. It means that all legacy ATA drivers were 999 removed and replaced by respective CAM drivers. If you are using 1000 ATA device names in /etc/fstab or other places, make sure to update 1001 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1002 where 'Y's are the sequential numbers starting from zero for each type 1003 in order of detection, unless configured otherwise with tunables, 1004 see cam(4)). There will be symbolic links created in /dev/ to map 1005 old adX devices to the respective adaY. They should provide basic 1006 compatibility for file systems mounting in most cases, but they do 1007 not support old user-level APIs and do not have respective providers 1008 in GEOM. Consider using updated management tools with new device names. 1009 1010 It is possible to load devices ahci, ata, siis and mvs as modules, 1011 but option ATA_CAM should remain in kernel configuration to make ata 1012 module work as CAM driver supporting legacy ATA controllers. Device ata 1013 still can be used in modular fashion (atacore + ...). Modules atadisk 1014 and atapi* are not used and won't affect operation in ATA_CAM mode. 1015 Note that to use CAM-based ATA kernel should include CAM devices 1016 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1017 them are parts of the cam module. 1018 1019 ataraid(4) functionality is now supported by the RAID GEOM class. 1020 To use it you can load geom_raid kernel module and use graid(8) tool 1021 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1022 1023 No kernel config options or code have been removed, so if a problem 1024 arises, please report it and optionally revert to the old ATA stack. 1025 In order to do it you can remove from the kernel config: 1026 options ATA_CAM 1027 device ahci 1028 device mvs 1029 device siis 1030 , and instead add back: 1031 device atadisk # ATA disk drives 1032 device ataraid # ATA RAID drives 1033 device atapicd # ATAPI CDROM drives 1034 device atapifd # ATAPI floppy drives 1035 device atapist # ATAPI tape drives 1036 103720110423: 1038 The default NFS server has been changed to the new server, which 1039 was referred to as the experimental server. If you need to switch 1040 back to the old NFS server, you must now put the "-o" option on 1041 both the mountd and nfsd commands. This can be done using the 1042 mountd_flags and nfs_server_flags rc.conf variables until an 1043 update to the rc scripts is committed, which is coming soon. 1044 104520110418: 1046 The GNU Objective-C runtime library (libobjc), and other Objective-C 1047 related components have been removed from the base system. If you 1048 require an Objective-C library, please use one of the available ports. 1049 105020110331: 1051 ath(4) has been split into bus- and device- modules. if_ath contains 1052 the HAL, the TX rate control and the network device code. if_ath_pci 1053 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1054 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1055 in order to use ath on everything else. 1056 1057 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1058 need to load if_ath and if_ath_pci for ath(4) operation. 1059 106020110314: 1061 As part of the replacement of sysinstall, the process of building 1062 release media has changed significantly. For details, please re-read 1063 release(7), which has been updated to reflect the new build process. 1064 106520110218: 1066 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1067 is the last available version under GPLv2. It brings a number of new 1068 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1069 4.1 and SSE 4.2), better support for powerpc64, a number of new 1070 directives, and lots of other small improvements. See the ChangeLog 1071 file in contrib/binutils for the full details. 1072 107320110218: 1074 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1075 compliant, and will now use half of hash for authentication. 1076 This will break interoperability with all stacks (including all 1077 actual FreeBSD versions) who implement 1078 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1079 authentication). 1080 The only workaround with such peers is to use another HMAC 1081 algorithm for IPsec ("phase 2") authentication. 1082 108320110207: 1084 Remove the uio_yield prototype and symbol. This function has 1085 been misnamed since it was introduced and should not be 1086 globally exposed with this name. The equivalent functionality 1087 is now available using kern_yield(curthread->td_user_pri). 1088 The function remains undocumented. 1089 109020110112: 1091 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1092 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1093 for scalar sysctls is defined but disabled. Code that needs 1094 UQUAD to pass the type checking that must compile on older 1095 systems where the define is not present can check against 1096 __FreeBSD_version >= 900030. 1097 1098 The system dialog(1) has been replaced with a new version previously 1099 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1100 with the previous version, but the libdialog associated with it has 1101 a largely incompatible API. As such, the original version of libdialog 1102 will be kept temporarily as libodialog, until its base system consumers 1103 are replaced or updated. Bump __FreeBSD_version to 900030. 1104 110520110103: 1106 If you are trying to run make universe on a -stable system, and you get 1107 the following warning: 1108 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1109 unknown. config(8) likely too old." 1110 or something similar to it, then you must upgrade your -stable system 1111 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1112 stable/8) or build the config from the latest stable/8 branch and 1113 install it on your system. 1114 1115 Prior to this date, building a current universe on 8-stable system from 1116 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1117 error in the first kernel build phase. A new config on those old 1118 systems will fix that problem for older versions of -current. 1119 112020101228: 1121 The TCP stack has been modified to allow Khelp modules to interact with 1122 it via helper hook points and store per-connection data in the TCP 1123 control block. Bump __FreeBSD_version to 900029. User space tools that 1124 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1125 be recompiled. 1126 112720101114: 1128 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1129 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1130 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1131 to take advantage of it instead of using custom implementations. This 1132 means that these drivers now no longer unconditionally advertise 1133 support for flow control but only do so if flow control is a selected 1134 media option. This was implemented in the generic support that way in 1135 order to allow flow control to be switched on and off via ifconfig(8) 1136 with the PHY specific default to typically off in order to protect 1137 from unwanted effects. Consequently, if you used flow control with 1138 one of the above mentioned drivers you now need to explicitly enable 1139 it, for example via: 1140 ifconfig bge0 media auto mediaopt flowcontrol 1141 1142 Along with the above mentioned changes generic support for setting 1143 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1144 e1000phy(4) as well as ip1000phy(4) have been converted to take 1145 advantage of it. This means that these drivers now no longer take the 1146 link0 parameter for selecting master mode but the master media option 1147 has to be used instead, for example like in the following: 1148 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1149 1150 Selection of master mode now is also available with all other PHY 1151 drivers supporting 1000baseT. 1152 115320101111: 1154 The TCP stack has received a significant update to add support for 1155 modularised congestion control and generally improve the clarity of 1156 congestion control decisions. Bump __FreeBSD_version to 900025. User 1157 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1158 sockstat) need to be recompiled. 1159 116020101002: 1161 The man(1) utility has been replaced by a new version that no longer 1162 uses /etc/manpath.config. Please consult man.conf(5) for how to 1163 migrate local entries to the new format. 1164 116520100928: 1166 The copyright strings printed by login(1) and sshd(8) at the time of a 1167 new connection have been removed to follow other operating systems and 1168 upstream sshd. 1169 117020100915: 1171 A workaround for a fixed ld bug has been removed in kernel code, 1172 so make sure that your system ld is built from sources after 1173 revision 210245 from 2010-07-19 (r211583 if building head kernel 1174 on stable/8, r211584 for stable/7; both from 2010-08-21). 1175 A symptom of incorrect ld version is different addresses for 1176 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1177 117820100913: 1179 The $ipv6_prefer variable in rc.conf(5) has been split into 1180 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1181 1182 The $ip6addrctl_policy is a variable to choose a pre-defined 1183 address selection policy set by ip6addrctl(8). A value 1184 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1185 default is "AUTO". 1186 1187 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1188 flag (see an entry of 20090926) is set on an interface with no 1189 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1190 security reason. If you want IPv6 link-local address on all 1191 interfaces by default, set this to "YES". 1192 1193 The old ipv6_prefer="YES" is equivalent to 1194 ipv6_activate_all_interfaces="YES" and 1195 ip6addrctl_policy="ipv6_prefer". 1196 119720100913: 1198 DTrace has grown support for userland tracing. Due to this, DTrace is 1199 now i386 and amd64 only. 1200 dtruss(1) is now installed by default on those systems and a new 1201 kernel module is needed for userland tracing: fasttrap. 1202 No changes to your kernel config file are necessary to enable 1203 userland tracing, but you might consider adding 'STRIP=' and 1204 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1205 to have informative userland stack traces in DTrace (ustack). 1206 120720100725: 1208 The acpi_aiboost(4) driver has been removed in favor of the new 1209 aibs(4) driver. You should update your kernel configuration file. 1210 121120100722: 1212 BSD grep has been imported to the base system and it is built by 1213 default. It is completely BSD licensed, highly GNU-compatible, uses 1214 less memory than its GNU counterpart and has a small codebase. 1215 However, it is slower than its GNU counterpart, which is mostly 1216 noticeable for larger searches, for smaller ones it is measurable 1217 but not significant. The reason is complex, the most important factor 1218 is that we lack a modern and efficient regex library and GNU 1219 overcomes this by optimizing the searches internally. Future work 1220 on improving the regex performance is planned, for the meantime, 1221 users that need better performance, can build GNU grep instead by 1222 setting the WITH_GNU_GREP knob. 1223 122420100713: 1225 Due to the import of powerpc64 support, all existing powerpc kernel 1226 configuration files must be updated with a machine directive like this: 1227 machine powerpc powerpc 1228 1229 In addition, an updated config(8) is required to build powerpc kernels 1230 after this change. 1231 123220100713: 1233 A new version of ZFS (version 15) has been merged to -HEAD. 1234 This version uses a python library for the following subcommands: 1235 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1236 For full functionality of these commands the following port must 1237 be installed: sysutils/py-zfs 1238 123920100429: 1240 'vm_page's are now hashed by physical address to an array of mutexes. 1241 Currently this is only used to serialize access to hold_count. Over 1242 time the page queue mutex will be peeled away. This changes the size 1243 of pmap on every architecture. And requires all callers of vm_page_hold 1244 and vm_page_unhold to be updated. 1245 124620100402: 1247 WITH_CTF can now be specified in src.conf (not recommended, there 1248 are some problems with static executables), make.conf (would also 1249 affect ports which do not use GNU make and do not override the 1250 compile targets) or in the kernel config (via "makeoptions 1251 WITH_CTF=yes"). 1252 When WITH_CTF was specified there before this was silently ignored, 1253 so make sure that WITH_CTF is not used in places which could lead 1254 to unwanted behavior. 1255 125620100311: 1257 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1258 to allow 32-bit compatibility on non-x86 platforms. All kernel 1259 configurations on amd64 and ia64 platforms using these options must 1260 be modified accordingly. 1261 126220100113: 1263 The utmp user accounting database has been replaced with utmpx, 1264 the user accounting interface standardized by POSIX. 1265 Unfortunately the semantics of utmp and utmpx don't match, 1266 making it practically impossible to support both interfaces. 1267 The user accounting database is used by tools like finger(1), 1268 last(1), talk(1), w(1) and ac(8). 1269 1270 All applications in the base system use utmpx. This means only 1271 local binaries (e.g. from the ports tree) may still use these 1272 utmp database files. These applications must be rebuilt to make 1273 use of utmpx. 1274 1275 After the system has been upgraded, it is safe to remove the old 1276 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1277 assuming their contents is of no importance anymore. Old wtmp 1278 databases can only be used by last(1) and ac(8) after they have 1279 been converted to the new format using wtmpcvt(1). 1280 128120100108: 1282 Introduce the kernel thread "deadlock resolver" (which can be enabled 1283 via the DEADLKRES option, see NOTES for more details) and the 1284 sleepq_type() function for sleepqueues. 1285 128620091202: 1287 The rc.firewall and rc.firewall6 were unified, and 1288 rc.firewall6 and rc.d/ip6fw were removed. 1289 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1290 variables are obsoleted. Instead, the following new rc 1291 variables are added to rc.d/ipfw: 1292 1293 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1294 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1295 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1296 1297 The meanings correspond to the relevant IPv4 variables. 1298 129920091125: 1300 8.0-RELEASE. 1301 130220091113: 1303 The default terminal emulation for syscons(4) has been changed 1304 from cons25 to xterm on all platforms except pc98. This means 1305 that the /etc/ttys file needs to be updated to ensure correct 1306 operation of applications on the console. 1307 1308 The terminal emulation style can be toggled per window by using 1309 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1310 options can be used to change the compile-time default back to 1311 cons25. 1312 1313 To prevent graphical artifacts, make sure the TERM environment 1314 variable is set to match the terminal emulation that is being 1315 performed by syscons(4). 1316 131720091109: 1318 The layout of the structure ieee80211req_scan_result has changed. 1319 Applications that require wireless scan results (e.g. ifconfig(8)) 1320 from net80211 need to be recompiled. 1321 1322 Applications such as wpa_supplicant(8) may require a full world 1323 build without using NO_CLEAN in order to get synchronized with the 1324 new structure. 1325 132620091025: 1327 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1328 There's one kernel module for each firmware. Adding "device iwnfw" 1329 to the kernel configuration file means including all three firmware 1330 images inside the kernel. If you want to include just the one for 1331 your wireless card, use the devices iwn4965fw, iwn5000fw or 1332 iwn5150fw. 1333 133420090926: 1335 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1336 into rc.d/netif. The changes are the following: 1337 1338 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1339 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1340 Note that both variables need the "inet6" keyword at the head. 1341 1342 Do not set $ipv6_network_interfaces manually if you do not 1343 understand what you are doing. It is not needed in most cases. 1344 1345 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1346 they are obsolete. 1347 1348 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1349 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1350 1351 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1352 all configured interfaces have "inet6 accept_rtadv" in the 1353 $ifconfig_IF_ipv6. These are for backward compatibility. 1354 1355 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1356 functionality of interfaces with no corresponding 1357 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1358 and the default address selection policy of ip6addrctl(8) 1359 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1360 Note that if you want to configure IPv6 functionality on the 1361 disabled interfaces after boot, first you need to clear the flag by 1362 using ifconfig(8) like: 1363 1364 ifconfig em0 inet6 -ifdisabled 1365 1366 If YES, the default address selection policy is set as 1367 IPv6-preferred. 1368 1369 The default value of $ipv6_prefer is NO. 1370 1371 4. If your system need to receive Router Advertisement messages, 1372 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1373 scripts automatically invoke rtsol(8) when the interface becomes 1374 UP. The Router Advertisement messages are used for SLAAC 1375 (State-Less Address AutoConfiguration). 1376 137720090922: 1378 802.11s D3.03 support was committed. This is incompatible with the 1379 previous code, which was based on D3.0. 1380 138120090912: 1382 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1383 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1384 control whether accepting Router Advertisement messages or not. 1385 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1386 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1387 The ifconfig(8) utility now supports these flags. 1388 138920090910: 1390 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1391 mount(8) and -a option for df(1) to see them. 1392 139320090825: 1394 The old tunable hw.bus.devctl_disable has been superseded by 1395 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1396 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1397 is 1000. 1398 139920090813: 1400 Remove the option STOP_NMI. The default action is now to use NMI only 1401 for KDB via the newly introduced function stop_cpus_hard() and 1402 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1403 140420090803: 1405 The stable/8 branch created in subversion. This corresponds to the 1406 RELENG_8 branch in CVS. 1407 140820090719: 1409 Bump the shared library version numbers for all libraries that do not 1410 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1411 __FreeBSD_version to 800105. 1412 141320090714: 1414 Due to changes in the implementation of virtual network stack support, 1415 all network-related kernel modules must be recompiled. As this change 1416 breaks the ABI, bump __FreeBSD_version to 800104. 1417 141820090713: 1419 The TOE interface to the TCP syncache has been modified to remove 1420 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1421 The cxgb driver is the only TOE consumer affected by this change, and 1422 needs to be recompiled along with the kernel. As this change breaks 1423 the ABI, bump __FreeBSD_version to 800103. 1424 142520090712: 1426 Padding has been added to struct tcpcb, sackhint and tcpstat in 1427 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1428 maintaining the ABI. However, this change breaks the ABI, so bump 1429 __FreeBSD_version to 800102. User space tools that rely on the size of 1430 any of these structs (e.g. sockstat) need to be recompiled. 1431 143220090630: 1433 The NFS_LEGACYRPC option has been removed along with the old kernel 1434 RPC implementation that this option selected. Kernel configurations 1435 may need to be adjusted. 1436 143720090629: 1438 The network interface device nodes at /dev/net/<interface> have been 1439 removed. All ioctl operations can be performed the normal way using 1440 routing sockets. The kqueue functionality can generally be replaced 1441 with routing sockets. 1442 144320090628: 1444 The documentation from the FreeBSD Documentation Project (Handbook, 1445 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1446 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1447 144820090624: 1449 The ABI of various structures related to the SYSV IPC API have been 1450 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1451 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1452 800100. 1453 145420090622: 1455 Layout of struct vnet has changed as routing related variables were 1456 moved to their own Vimage module. Modules need to be recompiled. Bump 1457 __FreeBSD_version to 800099. 1458 145920090619: 1460 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1461 respectively. As long as no more than 16 groups per process are used, 1462 no changes should be visible. When more than 16 groups are used, old 1463 binaries may fail if they call getgroups() or getgrouplist() with 1464 statically sized storage. Recompiling will work around this, but 1465 applications should be modified to use dynamically allocated storage 1466 for group arrays as POSIX.1-2008 does not cap an implementation's 1467 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1468 1469 NFS and portalfs mounts may also be affected as the list of groups is 1470 truncated to 16. Users of NFS who use more than 16 groups, should 1471 take care that negative group permissions are not used on the exported 1472 file systems as they will not be reliable unless a GSSAPI based 1473 authentication method is used. 1474 147520090616: 1476 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1477 option compiles in the support for adaptive spinning for lockmgrs 1478 which want to enable it. The lockinit() function now accepts the flag 1479 LK_ADAPTIVE in order to make the lock object subject to adaptive 1480 spinning when both held in write and read mode. 1481 148220090613: 1483 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1484 changed. User applications that use this ioctl need to be rebuilt. 1485 148620090611: 1487 The layout of struct thread has changed. Kernel and modules need to 1488 be rebuilt. 1489 149020090608: 1491 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1492 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1493 149420090602: 1495 window(1) has been removed from the base system. It can now be 1496 installed from ports. The port is called misc/window. 1497 149820090601: 1499 The way we are storing and accessing `routing table' entries has 1500 changed. Programs reading the FIB, like netstat, need to be 1501 re-compiled. 1502 150320090601: 1504 A new netisr implementation has been added for FreeBSD 8. Network 1505 file system modules, such as igmp, ipdivert, and others, should be 1506 rebuilt. 1507 Bump __FreeBSD_version to 800096. 1508 150920090530: 1510 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1511 more valid. 1512 151320090530: 1514 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1515 Bump __FreeBSD_version to 800094. 1516 151720090529: 1518 Add mnt_xflag field to 'struct mount'. File system modules need to be 1519 rebuilt. 1520 Bump __FreeBSD_version to 800093. 1521 152220090528: 1523 The compiling option ADAPTIVE_SX has been retired while it has been 1524 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1525 The KPI for sx_init_flags() changes as accepting flags: 1526 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1527 been introduced in order to handle the reversed logic. 1528 Bump __FreeBSD_version to 800092. 1529 153020090527: 1531 Add support for hierarchical jails. Remove global securelevel. 1532 Bump __FreeBSD_version to 800091. 1533 153420090523: 1535 The layout of struct vnet_net has changed, therefore modules 1536 need to be rebuilt. 1537 Bump __FreeBSD_version to 800090. 1538 153920090523: 1540 The newly imported zic(8) produces a new format in the output. Please 1541 run tzsetup(8) to install the newly created data to /etc/localtime. 1542 154320090520: 1544 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1545 hw.usb.* and is now consistent again with previous releases. 1546 154720090520: 1548 802.11 monitor mode support was revised and driver api's were changed. 1549 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1550 of DLT_IEEE802_11. No user-visible data structures were changed but 1551 applications that use DLT_IEEE802_11 may require changes. 1552 Bump __FreeBSD_version to 800088. 1553 155420090430: 1555 The layout of the following structs has changed: sysctl_oid, 1556 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1557 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1558 panics may be experienced. World rebuild is required for 1559 correctly checking networking state from userland. 1560 Bump __FreeBSD_version to 800085. 1561 156220090429: 1563 MLDv2 and Source-Specific Multicast (SSM) have been merged 1564 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1565 The implementation of SSM within FreeBSD's IPv6 stack closely 1566 follows the IPv4 implementation. 1567 1568 For kernel developers: 1569 1570 * The most important changes are that the ip6_output() and 1571 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1572 and this lock has been downgraded to a non-recursive mutex. 1573 1574 * As with the changes to the IPv4 stack to support SSM, filtering 1575 of inbound multicast traffic must now be performed by transport 1576 protocols within the IPv6 stack. This does not apply to TCP and 1577 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1578 1579 * The KPIs used by IPv6 multicast are similar to those used by 1580 the IPv4 stack, with the following differences: 1581 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1582 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1583 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1584 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1585 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1586 for MLDv1 have an additional 'timer' argument which is used to 1587 jitter the initial membership report for the solicited-node 1588 multicast membership on-link. 1589 * This is not strictly needed for MLDv2, which already jitters 1590 its report transmissions. However, the 'timer' argument is 1591 preserved in case MLDv1 is active on the interface. 1592 1593 * The KAME linked-list based IPv6 membership implementation has 1594 been refactored to use a vector similar to that used by the IPv4 1595 stack. 1596 Code which maintains a list of its own multicast memberships 1597 internally, e.g. carp, has been updated to reflect the new 1598 semantics. 1599 1600 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1601 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1602 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1603 implementation constraint which needs to be addressed in HEAD. 1604 1605 For application developers: 1606 1607 * The changes are broadly similar to those made for the IPv4 1608 stack. 1609 1610 * The use of IPv4 and IPv6 multicast socket options on the same 1611 socket, using mapped addresses, HAS NOT been tested or supported. 1612 1613 * There are a number of issues with the implementation of various 1614 IPv6 multicast APIs which need to be resolved in the API surface 1615 before the implementation is fully compatible with KAME userland 1616 use, and these are mostly to do with interface index treatment. 1617 1618 * The literature available discusses the use of either the delta / ASM 1619 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1620 using setsourcefilter(3)/getsourcefilter(3). For more information 1621 please refer to RFC 3768, 'Socket Interface Extensions for 1622 Multicast Source Filters'. 1623 1624 * Applications which use the published RFC 3678 APIs should be fine. 1625 1626 For systems administrators: 1627 1628 * The mtest(8) utility has been refactored to support IPv6, in 1629 addition to IPv4. Interface addresses are no longer accepted 1630 as arguments, their names must be used instead. The utility 1631 will map the interface name to its first IPv4 address as 1632 returned by getifaddrs(3). 1633 1634 * The ifmcstat(8) utility has also been updated to print the MLDv2 1635 endpoint state and source filter lists via sysctl(3). 1636 1637 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1638 loopback of IPv6 multicast datagrams by default; it defaults to 1 1639 to preserve the existing behaviour. Disabling multicast loopback is 1640 recommended for optimal system performance. 1641 1642 * The IPv6 MROUTING code has been changed to examine this sysctl 1643 instead of attempting to perform a group lookup before looping 1644 back forwarded datagrams. 1645 1646 Bump __FreeBSD_version to 800084. 1647 164820090422: 1649 Implement low-level Bluetooth HCI API. 1650 Bump __FreeBSD_version to 800083. 1651 165220090419: 1653 The layout of struct malloc_type, used by modules to register new 1654 memory allocation types, has changed. Most modules will need to 1655 be rebuilt or panics may be experienced. 1656 Bump __FreeBSD_version to 800081. 1657 165820090415: 1659 Anticipate overflowing inp_flags - add inp_flags2. 1660 This changes most offsets in inpcb, so checking v4 connection 1661 state will require a world rebuild. 1662 Bump __FreeBSD_version to 800080. 1663 166420090415: 1665 Add an llentry to struct route and struct route_in6. Modules 1666 embedding a struct route will need to be recompiled. 1667 Bump __FreeBSD_version to 800079. 1668 166920090414: 1670 The size of rt_metrics_lite and by extension rtentry has changed. 1671 Networking administration apps will need to be recompiled. 1672 The route command now supports show as an alias for get, weighting 1673 of routes, sticky and nostick flags to alter the behavior of stateful 1674 load balancing. 1675 Bump __FreeBSD_version to 800078. 1676 167720090408: 1678 Do not use Giant for kbdmux(4) locking. This is wrong and 1679 apparently causing more problems than it solves. This will 1680 re-open the issue where interrupt handlers may race with 1681 kbdmux(4) in polling mode. Typical symptoms include (but 1682 not limited to) duplicated and/or missing characters when 1683 low level console functions (such as gets) are used while 1684 interrupts are enabled (for example geli password prompt, 1685 mountroot prompt etc.). Disabling kbdmux(4) may help. 1686 168720090407: 1688 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1689 kernel modules referencing any of the above need to be recompiled. 1690 Bump __FreeBSD_version to 800075. 1691 169220090320: 1693 GEOM_PART has become the default partition slicer for storage devices, 1694 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1695 introduces some changes: 1696 1697 MSDOS/EBR: the devices created from MSDOS extended partition entries 1698 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1699 to devices with offset-based names. fstabs may need to be modified. 1700 1701 BSD: the "geometry does not match label" warning is harmless in most 1702 cases but it points to problems in file system misalignment with 1703 disk geometry. The "c" partition is now implicit, covers the whole 1704 top-level drive and cannot be (mis)used by users. 1705 1706 General: Kernel dumps are now not allowed to be written to devices 1707 whose partition types indicate they are meant to be used for file 1708 systems (or, in case of MSDOS partitions, as something else than 1709 the "386BSD" type). 1710 1711 Most of these changes date approximately from 200812. 1712 171320090319: 1714 The uscanner(4) driver has been removed from the kernel. This follows 1715 Linux removing theirs in 2.6 and making libusb the default interface 1716 (supported by sane). 1717 171820090319: 1719 The multicast forwarding code has been cleaned up. netstat(1) 1720 only relies on KVM now for printing bandwidth upcall meters. 1721 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1722 ip6_mroute_mod respectively. The config(5) options for statically 1723 compiling this code remain the same, i.e. 'options MROUTING'. 1724 172520090315: 1726 Support for the IFF_NEEDSGIANT network interface flag has been 1727 removed, which means that non-MPSAFE network device drivers are no 1728 longer supported. In particular, if_ar, if_sr, and network device 1729 drivers from the old (legacy) USB stack can no longer be built or 1730 used. 1731 173220090313: 1733 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1734 a bunch of new language catalog files have also been added. 1735 This means that some common libc messages are now localized and 1736 they depend on the LC_MESSAGES environmental variable. 1737 173820090313: 1739 The k8temp(4) driver has been renamed to amdtemp(4) since 1740 support for Family 10 and Family 11 CPU families was added. 1741 174220090309: 1743 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1744 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1745 1746 For kernel developers, the most important changes are that the 1747 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1748 and this lock has been downgraded to a non-recursive mutex. 1749 1750 Transport protocols (UDP, Raw IP) are now responsible for filtering 1751 inbound multicast traffic according to group membership and source 1752 filters. The imo_multicast_filter() KPI exists for this purpose. 1753 Transports which do not use multicast (SCTP, TCP) already reject 1754 multicast by default. Forwarding and receive performance may improve 1755 as a mutex acquisition is no longer needed in the ip_input() 1756 low-level input path. in_addmulti() and in_delmulti() are shimmed 1757 to new KPIs which exist to support SSM in-kernel. 1758 1759 For application developers, it is recommended that loopback of 1760 multicast datagrams be disabled for best performance, as this 1761 will still cause the lock to be taken for each looped-back 1762 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1763 be tuned to 0 to disable loopback by default; it defaults to 1 1764 to preserve the existing behaviour. 1765 1766 For systems administrators, to obtain best performance with 1767 multicast reception and multiple groups, it is always recommended 1768 that a card with a suitably precise hash filter is used. Hash 1769 collisions will still result in the lock being taken within the 1770 transport protocol input path to check group membership. 1771 1772 If deploying FreeBSD in an environment with IGMP snooping switches, 1773 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1774 enabled; this forces 224.0.0.0/24 group membership to be announced 1775 via IGMP. 1776 1777 The size of 'struct igmpstat' has changed; netstat needs to be 1778 recompiled to reflect this. 1779 Bump __FreeBSD_version to 800070. 1780 178120090309: 1782 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1783 updated to use it. This requires a buildworld/installworld in order to 1784 update the library and dependencies (usbconfig, etc). Its advisable to 1785 rebuild all ports which uses libusb. More specific directions are given 1786 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1787 libusb are no longer required and can be removed. 1788 178920090302: 1790 A workaround is committed to allow the creation of System V shared 1791 memory segment of size > 2 GB on the 64-bit architectures. 1792 Due to a limitation of the existing ABI, the shm_segsz member 1793 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1794 wrong for large segments. Note that limits must be explicitly 1795 raised to allow such segments to be created. 1796 179720090301: 1798 The layout of struct ifnet has changed, requiring a rebuild of all 1799 network device driver modules. 1800 180120090227: 1802 The /dev handling for the new USB stack has changed, a 1803 buildworld/installworld is required for libusb20. 1804 180520090223: 1806 The new USB2 stack has now been permanently moved in and all kernel and 1807 module names reverted to their previous values (eg, usb, ehci, ohci, 1808 ums, ...). The old usb stack can be compiled in by prefixing the name 1809 with the letter 'o', the old usb modules have been removed. 1810 Updating entry 20090216 for xorg and 20090215 for libmap may still 1811 apply. 1812 181320090217: 1814 The rc.conf(5) option if_up_delay has been renamed to 1815 defaultroute_delay to better reflect its purpose. If you have 1816 customized this setting in /etc/rc.conf you need to update it to 1817 use the new name. 1818 181920090216: 1820 xorg 7.4 wants to configure its input devices via hald which does not 1821 yet work with USB2. If the keyboard/mouse does not work in xorg then 1822 add 1823 Option "AllowEmptyInput" "off" 1824 to your ServerLayout section. This will cause X to use the configured 1825 kbd and mouse sections from your xorg.conf. 1826 182720090215: 1828 The GENERIC kernels for all architectures now default to the new USB2 1829 stack. No kernel config options or code have been removed so if a 1830 problem arises please report it and optionally revert to the old USB 1831 stack. If you are loading USB kernel modules or have a custom kernel 1832 that includes GENERIC then ensure that usb names are also changed over, 1833 eg uftdi -> usb2_serial_ftdi. 1834 1835 Older programs linked against the ports libusb 0.1 need to be 1836 redirected to the new stack's libusb20. /etc/libmap.conf can 1837 be used for this: 1838 # Map old usb library to new one for usb2 stack 1839 libusb-0.1.so.8 libusb20.so.1 1840 184120090209: 1842 All USB ethernet devices now attach as interfaces under the name ueN 1843 (eg. ue0). This is to provide a predictable name as vendors often 1844 change usb chipsets in a product without notice. 1845 184620090203: 1847 The ichsmb(4) driver has been changed to require SMBus slave 1848 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1849 All of the other SMBus controller drivers require left-justified 1850 slave addresses, so this change makes all the drivers provide the 1851 same interface. 1852 185320090201: 1854 INET6 statistics (struct ip6stat) was updated. 1855 netstat(1) needs to be recompiled. 1856 185720090119: 1858 NTFS has been removed from GENERIC kernel on amd64 to match 1859 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1860 will load ntfs.ko module automatically when NTFS support is 1861 actually needed, unless ntfs.ko is not installed or security 1862 level prohibits loading kernel modules. If either is the case, 1863 "options NTFS" has to be added into kernel config. 1864 186520090115: 1866 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1867 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1868 800061. User space tools that rely on the size of struct tcpcb in 1869 tcp_var.h (e.g. sockstat) need to be recompiled. 1870 187120081225: 1872 ng_tty(4) module updated to match the new TTY subsystem. 1873 Due to API change, user-level applications must be updated. 1874 New API support added to mpd5 CVS and expected to be present 1875 in next mpd5.3 release. 1876 187720081219: 1878 With __FreeBSD_version 800060 the makefs tool is part of 1879 the base system (it was a port). 1880 188120081216: 1882 The afdata and ifnet locks have been changed from mutexes to 1883 rwlocks, network modules will need to be re-compiled. 1884 188520081214: 1886 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1887 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1888 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1889 architecture and 40 bytes on 64-bit architecture. The userland 1890 applications "arp" and "ndp" have been updated accordingly. 1891 The output from "netstat -r" shows only routing entries and 1892 none of the L2 information. 1893 189420081130: 1895 __FreeBSD_version 800057 marks the switchover from the 1896 binary ath hal to source code. Users must add the line: 1897 1898 options AH_SUPPORT_AR5416 1899 1900 to their kernel config files when specifying: 1901 1902 device ath_hal 1903 1904 The ath_hal module no longer exists; the code is now compiled 1905 together with the driver in the ath module. It is now 1906 possible to tailor chip support (i.e. reduce the set of chips 1907 and thereby the code size); consult ath_hal(4) for details. 1908 190920081121: 1910 __FreeBSD_version 800054 adds memory barriers to 1911 <machine/atomic.h>, new interfaces to ifnet to facilitate 1912 multiple hardware transmit queues for cards that support 1913 them, and a lock-less ring-buffer implementation to 1914 enable drivers to more efficiently manage queueing of 1915 packets. 1916 191720081117: 1918 A new version of ZFS (version 13) has been merged to -HEAD. 1919 This version has zpool attribute "listsnapshots" off by 1920 default, which means "zfs list" does not show snapshots, 1921 and is the same as Solaris behavior. 1922 192320081028: 1924 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1925 192620081009: 1927 The uhci, ohci, ehci and slhci USB Host controller drivers have 1928 been put into separate modules. If you load the usb module 1929 separately through loader.conf you will need to load the 1930 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1931 controller add the following to loader.conf: 1932 1933 uhci_load="YES" 1934 ehci_load="YES" 1935 193620081009: 1937 The ABI used by the PMC toolset has changed. Please keep 1938 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1939 sync. 1940 194120081009: 1942 atapci kernel module now includes only generic PCI ATA 1943 driver. AHCI driver moved to ataahci kernel module. 1944 All vendor-specific code moved into separate kernel modules: 1945 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1946 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1947 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1948 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1949 195020080820: 1951 The TTY subsystem of the kernel has been replaced by a new 1952 implementation, which provides better scalability and an 1953 improved driver model. Most common drivers have been migrated to 1954 the new TTY subsystem, while others have not. The following 1955 drivers have not yet been ported to the new TTY layer: 1956 1957 PCI/ISA: 1958 cy, digi, rc, rp, sio 1959 1960 USB: 1961 ubser, ucycom 1962 1963 Line disciplines: 1964 ng_h4, ng_tty, ppp, sl, snp 1965 1966 Adding these drivers to your kernel configuration file shall 1967 cause compilation to fail. 1968 196920080818: 1970 ntpd has been upgraded to 4.2.4p5. 1971 197220080801: 1973 OpenSSH has been upgraded to 5.1p1. 1974 1975 For many years, FreeBSD's version of OpenSSH preferred DSA 1976 over RSA for host and user authentication keys. With this 1977 upgrade, we've switched to the vendor's default of RSA over 1978 DSA. This may cause upgraded clients to warn about unknown 1979 host keys even for previously known hosts. Users should 1980 follow the usual procedure for verifying host keys before 1981 accepting the RSA key. 1982 1983 This can be circumvented by setting the "HostKeyAlgorithms" 1984 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1985 command line. 1986 1987 Please note that the sequence of keys offered for 1988 authentication has been changed as well. You may want to 1989 specify IdentityFile in a different order to revert this 1990 behavior. 1991 199220080713: 1993 The sio(4) driver has been removed from the i386 and amd64 1994 kernel configuration files. This means uart(4) is now the 1995 default serial port driver on those platforms as well. 1996 1997 To prevent collisions with the sio(4) driver, the uart(4) driver 1998 uses different names for its device nodes. This means the 1999 onboard serial port will now most likely be called "ttyu0" 2000 instead of "ttyd0". You may need to reconfigure applications to 2001 use the new device names. 2002 2003 When using the serial port as a boot console, be sure to update 2004 /boot/device.hints and /etc/ttys before booting the new kernel. 2005 If you forget to do so, you can still manually specify the hints 2006 at the loader prompt: 2007 2008 set hint.uart.0.at="isa" 2009 set hint.uart.0.port="0x3F8" 2010 set hint.uart.0.flags="0x10" 2011 set hint.uart.0.irq="4" 2012 boot -s 2013 201420080609: 2015 The gpt(8) utility has been removed. Use gpart(8) to partition 2016 disks instead. 2017 201820080603: 2019 The version that Linuxulator emulates was changed from 2.4.2 2020 to 2.6.16. If you experience any problems with Linux binaries 2021 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2022 if it fixes the problem contact emulation mailing list. 2023 202420080525: 2025 ISDN4BSD (I4B) was removed from the src tree. You may need to 2026 update a your kernel configuration and remove relevant entries. 2027 202820080509: 2029 I have checked in code to support multiple routing tables. 2030 See the man pages setfib(1) and setfib(2). 2031 This is a hopefully backwards compatible version, 2032 but to make use of it you need to compile your kernel 2033 with options ROUTETABLES=2 (or more up to 16). 2034 203520080420: 2036 The 802.11 wireless support was redone to enable multi-bss 2037 operation on devices that are capable. The underlying device 2038 is no longer used directly but instead wlanX devices are 2039 cloned with ifconfig. This requires changes to rc.conf files. 2040 For example, change: 2041 ifconfig_ath0="WPA DHCP" 2042 to 2043 wlans_ath0=wlan0 2044 ifconfig_wlan0="WPA DHCP" 2045 see rc.conf(5) for more details. In addition, mergemaster of 2046 /etc/rc.d is highly recommended. Simultaneous update of userland 2047 and kernel wouldn't hurt either. 2048 2049 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2050 modules were merged into the base wlan module. All references 2051 to these modules (e.g. in kernel config files) must be removed. 2052 205320080408: 2054 psm(4) has gained write(2) support in native operation level. 2055 Arbitrary commands can be written to /dev/psm%d and status can 2056 be read back from it. Therefore, an application is responsible 2057 for status validation and error recovery. It is a no-op in 2058 other operation levels. 2059 206020080312: 2061 Support for KSE threading has been removed from the kernel. To 2062 run legacy applications linked against KSE libmap.conf may 2063 be used. The following libmap.conf may be used to ensure 2064 compatibility with any prior release: 2065 2066 libpthread.so.1 libthr.so.1 2067 libpthread.so.2 libthr.so.2 2068 libkse.so.3 libthr.so.3 2069 207020080301: 2071 The layout of struct vmspace has changed. This affects libkvm 2072 and any executables that link against libkvm and use the 2073 kvm_getprocs() function. In particular, but not exclusively, 2074 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2075 The effects are minimal, but it's advisable to upgrade world 2076 nonetheless. 2077 207820080229: 2079 The latest em driver no longer has support in it for the 2080 82575 adapter, this is now moved to the igb driver. The 2081 split was done to make new features that are incompatible 2082 with older hardware easier to do. 2083 208420080220: 2085 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2086 likewise the kernel option is now GEOM_LINUX_LVM. 2087 208820080211: 2089 The default NFS mount mode has changed from UDP to TCP for 2090 increased reliability. If you rely on (insecurely) NFS 2091 mounting across a firewall you may need to update your 2092 firewall rules. 2093 209420080208: 2095 Belatedly note the addition of m_collapse for compacting 2096 mbuf chains. 2097 209820080126: 2099 The fts(3) structures have been changed to use adequate 2100 integer types for their members and so to be able to cope 2101 with huge file trees. The old fts(3) ABI is preserved 2102 through symbol versioning in libc, so third-party binaries 2103 using fts(3) should still work, although they will not take 2104 advantage of the extended types. At the same time, some 2105 third-party software might fail to build after this change 2106 due to unportable assumptions made in its source code about 2107 fts(3) structure members. Such software should be fixed 2108 by its vendor or, in the worst case, in the ports tree. 2109 FreeBSD_version 800015 marks this change for the unlikely 2110 case that a portable fix is impossible. 2111 211220080123: 2113 To upgrade to -current after this date, you must be running 2114 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2115 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2116 211720071128: 2118 The ADAPTIVE_GIANT kernel option has been retired because its 2119 functionality is the default now. 2120 212120071118: 2122 The AT keyboard emulation of sunkbd(4) has been turned on 2123 by default. In order to make the special symbols of the Sun 2124 keyboards driven by sunkbd(4) work under X these now have 2125 to be configured the same way as Sun USB keyboards driven 2126 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2127 2128 Option "XkbLayout" "us" 2129 Option "XkbRules" "xorg" 2130 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2131 213220071024: 2133 It has been decided that it is desirable to provide ABI 2134 backwards compatibility to the FreeBSD 4/5/6 versions of the 2135 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2136 broken with the introduction of PCI domain support (see the 2137 20070930 entry). Unfortunately, this required the ABI of 2138 PCIOCGETCONF to be broken again in order to be able to 2139 provide backwards compatibility to the old version of that 2140 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2141 again. As for prominent ports this affects neither pciutils 2142 nor xorg-server this time, the hal port needs to be rebuilt 2143 however. 2144 214520071020: 2146 The misnamed kthread_create() and friends have been renamed 2147 to kproc_create() etc. Many of the callers already 2148 used kproc_start().. 2149 I will return kthread_create() and friends in a while 2150 with implementations that actually create threads, not procs. 2151 Renaming corresponds with version 800002. 2152 215320071010: 2154 RELENG_7 branched. 2155 2156COMMON ITEMS: 2157 2158 General Notes 2159 ------------- 2160 Avoid using make -j when upgrading. While generally safe, there are 2161 sometimes problems using -j to upgrade. If your upgrade fails with 2162 -j, please try again without -j. From time to time in the past there 2163 have been problems using -j with buildworld and/or installworld. This 2164 is especially true when upgrading between "distant" versions (eg one 2165 that cross a major release boundary or several minor releases, or when 2166 several months have passed on the -current branch). 2167 2168 Sometimes, obscure build problems are the result of environment 2169 poisoning. This can happen because the make utility reads its 2170 environment when searching for values for global variables. To run 2171 your build attempts in an "environmental clean room", prefix all make 2172 commands with 'env -i '. See the env(1) manual page for more details. 2173 2174 When upgrading from one major version to another it is generally best 2175 to upgrade to the latest code in the currently installed branch first, 2176 then do an upgrade to the new branch. This is the best-tested upgrade 2177 path, and has the highest probability of being successful. Please try 2178 this approach before reporting problems with a major version upgrade. 2179 2180 When upgrading a live system, having a root shell around before 2181 installing anything can help undo problems. Not having a root shell 2182 around can lead to problems if pam has changed too much from your 2183 starting point to allow continued authentication after the upgrade. 2184 2185 ZFS notes 2186 --------- 2187 When upgrading the boot ZFS pool to a new version, always follow 2188 these two steps: 2189 2190 1.) recompile and reinstall the ZFS boot loader and boot block 2191 (this is part of "make buildworld" and "make installworld") 2192 2193 2.) update the ZFS boot block on your boot drive 2194 2195 The following example updates the ZFS boot block on the first 2196 partition (freebsd-boot) of a GPT partitioned drive ad0: 2197 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2198 2199 Non-boot pools do not need these updates. 2200 2201 To build a kernel 2202 ----------------- 2203 If you are updating from a prior version of FreeBSD (even one just 2204 a few days old), you should follow this procedure. It is the most 2205 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2206 2207 make kernel-toolchain 2208 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2209 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2210 2211 To test a kernel once 2212 --------------------- 2213 If you just want to boot a kernel once (because you are not sure 2214 if it works, or if you want to boot a known bad kernel to provide 2215 debugging information) run 2216 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2217 nextboot -k testkernel 2218 2219 To just build a kernel when you know that it won't mess you up 2220 -------------------------------------------------------------- 2221 This assumes you are already running a CURRENT system. Replace 2222 ${arch} with the architecture of your machine (e.g. "i386", 2223 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2224 2225 cd src/sys/${arch}/conf 2226 config KERNEL_NAME_HERE 2227 cd ../compile/KERNEL_NAME_HERE 2228 make depend 2229 make 2230 make install 2231 2232 If this fails, go to the "To build a kernel" section. 2233 2234 To rebuild everything and install it on the current system. 2235 ----------------------------------------------------------- 2236 # Note: sometimes if you are running current you gotta do more than 2237 # is listed here if you are upgrading from a really old current. 2238 2239 <make sure you have good level 0 dumps> 2240 make buildworld 2241 make kernel KERNCONF=YOUR_KERNEL_HERE 2242 [1] 2243 <reboot in single user> [3] 2244 mergemaster -p [5] 2245 make installworld 2246 mergemaster -i [4] 2247 make delete-old [6] 2248 <reboot> 2249 2250 To cross-install current onto a separate partition 2251 -------------------------------------------------- 2252 # In this approach we use a separate partition to hold 2253 # current's root, 'usr', and 'var' directories. A partition 2254 # holding "/", "/usr" and "/var" should be about 2GB in 2255 # size. 2256 2257 <make sure you have good level 0 dumps> 2258 <boot into -stable> 2259 make buildworld 2260 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2261 <maybe newfs current's root partition> 2262 <mount current's root partition on directory ${CURRENT_ROOT}> 2263 make installworld DESTDIR=${CURRENT_ROOT} 2264 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2265 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2266 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2267 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2268 <reboot into current> 2269 <do a "native" rebuild/install as described in the previous section> 2270 <maybe install compatibility libraries from ports/misc/compat*> 2271 <reboot> 2272 2273 2274 To upgrade in-place from stable to current 2275 ---------------------------------------------- 2276 <make sure you have good level 0 dumps> 2277 make buildworld [9] 2278 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2279 [1] 2280 <reboot in single user> [3] 2281 mergemaster -p [5] 2282 make installworld 2283 mergemaster -i [4] 2284 make delete-old [6] 2285 <reboot> 2286 2287 Make sure that you've read the UPDATING file to understand the 2288 tweaks to various things you need. At this point in the life 2289 cycle of current, things change often and you are on your own 2290 to cope. The defaults can also change, so please read ALL of 2291 the UPDATING entries. 2292 2293 Also, if you are tracking -current, you must be subscribed to 2294 freebsd-current@freebsd.org. Make sure that before you update 2295 your sources that you have read and understood all the recent 2296 messages there. If in doubt, please track -stable which has 2297 much fewer pitfalls. 2298 2299 [1] If you have third party modules, such as vmware, you 2300 should disable them at this point so they don't crash your 2301 system on reboot. 2302 2303 [3] From the bootblocks, boot -s, and then do 2304 fsck -p 2305 mount -u / 2306 mount -a 2307 cd src 2308 adjkerntz -i # if CMOS is wall time 2309 Also, when doing a major release upgrade, it is required that 2310 you boot into single user mode to do the installworld. 2311 2312 [4] Note: This step is non-optional. Failure to do this step 2313 can result in a significant reduction in the functionality of the 2314 system. Attempting to do it by hand is not recommended and those 2315 that pursue this avenue should read this file carefully, as well 2316 as the archives of freebsd-current and freebsd-hackers mailing lists 2317 for potential gotchas. The -U option is also useful to consider. 2318 See mergemaster(8) for more information. 2319 2320 [5] Usually this step is a noop. However, from time to time 2321 you may need to do this if you get unknown user in the following 2322 step. It never hurts to do it all the time. You may need to 2323 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2324 install) after the buildworld before this step if you last updated 2325 from current before 20130425 or from -stable before 20130430. 2326 2327 [6] This only deletes old files and directories. Old libraries 2328 can be deleted by "make delete-old-libs", but you have to make 2329 sure that no program is using those libraries anymore. 2330 2331 [8] In order to have a kernel that can run the 4.x binaries needed to 2332 do an installworld, you must include the COMPAT_FREEBSD4 option in 2333 your kernel. Failure to do so may leave you with a system that is 2334 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2335 required to run the 5.x binaries on more recent kernels. And so on 2336 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2337 2338 Make sure that you merge any new devices from GENERIC since the 2339 last time you updated your kernel config file. 2340 2341 [9] When checking out sources, you must include the -P flag to have 2342 cvs prune empty directories. 2343 2344 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2345 "?=" instead of the "=" assignment operator, so that buildworld can 2346 override the CPUTYPE if it needs to. 2347 2348 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2349 not on the command line, or in /etc/make.conf. buildworld will 2350 warn if it is improperly defined. 2351FORMAT: 2352 2353This file contains a list, in reverse chronological order, of major 2354breakages in tracking -current. It is not guaranteed to be a complete 2355list of such breakages, and only contains entries since October 10, 2007. 2356If you need to see UPDATING entries from before that date, you will need 2357to fetch an UPDATING file from an older FreeBSD release. 2358 2359Copyright information: 2360 2361Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2362 2363Redistribution, publication, translation and use, with or without 2364modification, in full or in part, in any form or format of this 2365document are permitted without further permission from the author. 2366 2367THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2368IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2369WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2370DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2371INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2372(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2373SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2374HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2375STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2376IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2377POSSIBILITY OF SUCH DAMAGE. 2378 2379Contact Warner Losh if you have any questions about your use of 2380this document. 2381 2382$FreeBSD: releng/10.1/UPDATING 299068 2016-05-04 15:27:09Z delphij $ 2383