UPDATING revision 306336
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 1920160926 p29 FreeBSD-SA-16:26.openssl [revised] 20 21 Fix OpenSSL regression introduced in SA-16:26. 22 2320160923 p38 FreeBSD-SA-16:26.openssl 24 25 Fix multiple OpenSSL vulnerabilitites. 26 2720160725 p37 FreeBSD-SA-16:25.bspatch 28 FreeBSD-EN-16:09.freebsd-update 29 30 Fix bspatch heap overflow vulnerability. [SA-16:25] 31 32 Fix freebsd-update(8) support of FreeBSD 11.0 release 33 distribution. [EN-16:09] 34 3520160604 p36 FreeBSD-SA-16:24.ntp 36 37 Fix multiple vulnerabilities of ntp. 38 3920160531 p35 FreeBSD-SA-16:20.linux 40 FreeBSD-SA-16:21.43bsd 41 FreeBSD-SA-16:22.libarchive 42 43 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 44 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 45 Fix directory traversal in cpio(1). [SA-16:22] 46 4720160517 p34 FreeBSD-SA-16:18.atkbd 48 FreeBSD-SA-16:19.sendmsg 49 50 Fix buffer overflow in keyboard driver. [SA-16:18] 51 52 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 53 5420160504 p33 FreeBSD-SA-16:17.openssl 55 FreeBSD-EN-16:08.zfs 56 57 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 58 59 Fix memory leak in ZFS. [EN-16:08] 60 6120160429 p32 FreeBSD-SA-16:16.ntp 62 63 Fix multiple vulnerabilities of ntp. 64 6520160316 p31 FreeBSD-SA-16:14.openssh-xauth 66 FreeBSD-SA-16:15.sysarch 67 FreeBSD-EN-16:04.hyperv 68 69 Fix OpenSSH xauth(1) command injection. [SA-16:14] 70 Fix incorrect argument validation in sysarch(2). [SA-16:15] 71 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 72 7320160303 p30 FreeBSD-SA-16:12.openssl 74 75 Fix multiple vulnerabilities of OpenSSL. 76 7720160130 p29 FreeBSD-SA-16:11.openssl 78 79 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 80 8120160127 p28 FreeBSD-SA-16:09.ntp 82 FreeBSD-SA-16:10.linux 83 84 Fix multiple vulnerabilities of ntp. [SA-16:09] 85 86 Fix Linux compatibility layer issetugid(2) system call 87 vulnerability. [SA-16:10] 88 8920160114 p27 FreeBSD-SA-16:07.openssh 90 91 Fix OpenSSH client information leak. [SA-16:07] 92 9320160114 p26 FreeBSD-EN-16:02.pf 94 FreeBSD-EN-16:03.yplib 95 FreeBSD-SA-16:01.sctp 96 FreeBSD-SA-16:02.ntp 97 FreeBSD-SA-16:03.linux 98 FreeBSD-SA-16:04.linux 99 FreeBSD-SA-16:05.tcp 100 FreeBSD-SA-16:06.bsnmpd 101 102 Fix pf(4) generating bad TCP checksums. [EN-16:02] 103 Fix infinite loop in YP/NIS client library. [EN-16:03] 104 Fix remote denial of service in SCTP. [SA-16:01] 105 Update NTP to 4.2.8p5. [SA-16:02] 106 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 107 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 108 Fix crash in TCP MD5 signatures. [SA-16:05] 109 Fix insecure default permissions for snmpd.config. [SA-16:06] 110 11120151205 p25 FreeBSD-SA-15:26.openssl 112 113 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 114 11520151104 p24 FreeBSD-SA-15:25.ntp [revised] 116 FreeBSD-EN-15:19.kqueue 117 FreeBSD-EN-15:20.vm 118 119 Fix regression in ntpd(8) lacking support for RAWDCF reference 120 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 121 122 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 123 124 Fix applications exiting due to segmentation violation on a correct 125 memory address. [EN-15:20] 126 12720151026: p23 FreeBSD-SA-15:25.ntp 128 129 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 130 131 The configuration file syntax has been changed, thus mergemaster 132 run is recommended. Now the "kod" parameter requires "limited" 133 parameter. If the ntp.conf is not updated, the ntpd will run 134 successfully, but with KoD disabled. 135 13620151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 137 Revised patch to address a regression that prevents NIS from working. 138 13920150929: p21 FreeBSD-SA-15:24.rpcbind 140 141 Fix rpcbind(8) remote denial of service. [SA-15:24] 142 14320150916: p20 FreeBSD-EN-15:18.pkg 144 145 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 146 14720150825: p19 FreeBSD-SA-15:21.amd64 148 FreeBSD-SA-15:22.openssh 149 FreeBSD-EN-15:14.ixgbe 150 FreeBSD-EN-15:15.pkg 151 152 Fix local privilege escalation in IRET handler. [SA-15:21] 153 154 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 155 156 Disabled ixgbe(4) flow-director support. [EN-15:14] 157 158 Fix insufficient check of unsupported pkg(7) signature methods. 159 [EN-15:15] 160 16120150818: p18 FreeBSD-SA-15:20.expat 162 163 Fix multiple integer overflows in expat (libbsdxml) XML parser. 164 [SA-15:20] 165 16620150805: p17 FreeBSD-SA-15:18.bsdpatch 167 FreeBSD-SA-15:19.routed 168 169 Fix patch(1) shell injection vulnerability via ed(1). 170 [SA-15:18] 171 172 Fix routed remote denial of service vulnerability. [SA-15:19] 173 17420150728: p16 FreeBSD-SA-15:14.bsdpatch 175 FreeBSD-SA-15:15.tcp 176 FreeBSD-SA-15:16.openssh 177 178 Fix patch(1) shell injection vulnerability. [SA-15:14] 179 180 Fix resource exhaustion in TCP reassembly. [SA-15:15] 181 182 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 183 18420150721: p15 FreeBSD-SA-15:13.tcp 185 186 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 187 [SA-15:13] 188 18920150630: p14 FreeBSD-EN-15:08.sendmail [revised] 190 FreeBSD-EN-15:09.xlocale 191 FreeBSD-EN-15:10.iconv 192 193 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 194 195 Fix inconsistency between locale and rune locale states. 196 [EN-15:09] 197 198 Improved iconv(3) UTF-7 support. [EN-15:10] 199 20020150618: p13 FreeBSD-EN-15:08.sendmail 201 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 202 20320150612: p12 FreeBSD-SA-15:10.openssl 204 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 205 20620150609: p11 FreeBSD-EN-15:06.file 207 FreeBSD-EN-15:07.zfs 208 209 Updated base system file(1) to 5.22 to address multiple denial 210 of service issues. [EN-15:06] 211 212 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 213 [EN-15:07] 214 21520150513: p10 FreeBSD-EN-15:04.freebsd-update 216 FreeBSD-EN-15:05.ufs 217 218 Fix bug with freebsd-update(8) that does not ensure the previous 219 upgrade was completed. [EN-15:04] 220 221 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 222 22320150407: p9 FreeBSD-SA-15:04.igmp [revised] 224 FreeBSD-SA-15:07.ntp 225 FreeBSD-SA-15:08.bsdinstall 226 FreeBSD-SA-15:09.ipv6 227 228 Improved patch for SA-15:04.igmp. 229 230 Fix multiple vulnerabilities of ntp. [SA-15:07] 231 232 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 233 234 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 235 23620150320: p8 237 Fix patch for SA-15:06.openssl. 238 23920150319: p7 FreeBSD-SA-15:06.openssl 240 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 241 24220150225: p6 FreeBSD-SA-15:04.igmp 243 FreeBSD-EN-15:01.vt 244 FreeBSD-EN-15:02.openssl 245 FreeBSD-EN-15:03.freebsd-update 246 247 Fix integer overflow in IGMP protocol. [SA-15:04] 248 249 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 250 251 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 252 253 Fix freebsd-update libraries update ordering issue. [EN-15:03] 254 25520150127: p5 FreeBSD-SA-15:02.kmem 256 FreeBSD-SA-15:03.sctp 257 258 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 259 vulnerability. [SA-15:02] 260 261 Fix SCTP stream reset vulnerability. [SA-15:03] 262 26320150114: p4 FreeBSD-SA-15:01.openssl 264 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 265 26620141223: p3 FreeBSD-SA-14:31.ntp 267 FreeBSD-EN-14:13.freebsd-update 268 269 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 270 Fix directory deletion issue in freebsd-update. [EN-14:13] 271 27220141217: p2 FreeBSD-SA-14:30.unbound 273 Fix unbound remote denial of service vulnerability. 274 27520141210: p1 FreeBSD-SA-14:27.stdio 276 FreeBSD-SA-14:28.file 277 278 Fix buffer overflow in stdio. [SA-14:27] 279 280 Fix multiple vulnerabilities in file(1) and libmagic(3). 281 [SA-14:28] 282 28320140904: 284 The ofwfb driver, used to provide a graphics console on PowerPC when 285 using vt(4), no longer allows mmap() of all of physical memory. This 286 will prevent Xorg on PowerPC with some ATI graphics cards from 287 initializing properly unless x11-servers/xorg-server is updated to 288 1.12.4_8 or newer. 289 29020140831: 291 The libatf-c and libatf-c++ major versions were downgraded to 0 and 292 1 respectively to match the upstream numbers. They were out of 293 sync because, when they were originally added to FreeBSD, the 294 upstream versions were not respected. These libraries are private 295 and not yet built by default, so renumbering them should be a 296 non-issue. However, unclean source trees will yield broken test 297 programs once the operator executes "make delete-old-libs" after a 298 "make installworld". 299 300 Additionally, the atf-sh binary was made private by moving it into 301 /usr/libexec/. Already-built shell test programs will keep the 302 path to the old binary so they will break after "make delete-old" 303 is run. 304 305 If you are using WITH_TESTS=yes (not the default), wipe the object 306 tree and rebuild from scratch to prevent spurious test failures. 307 This is only needed once: the misnumbered libraries and misplaced 308 binaries have been added to OptionalObsoleteFiles.inc so they will 309 be removed during a clean upgrade. 310 31120140814: 312 The ixgbe tunables now match their sysctl counterparts, for example: 313 hw.ixgbe.enable_aim => hw.ix.enable_aim 314 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 315 31620140801: 317 The NFSv4.1 server committed by r269398 changes the internal 318 function call interfaces used between the NFS and krpc modules. 319 As such, __FreeBSD_version was bumped. 320 32120140729: 322 The default unbound configuration has been modified to address 323 issues with reverse lookups on networks that use private 324 address ranges. If you use the local_unbound service, run 325 "service local_unbound setup" as root to regenerate your 326 configuration, then "service local_unbound reload" to load the 327 new configuration. 328 32920140717: 330 It is no longer necessary to include the dwarf version in your DEBUG 331 options in your kernel config file. The bug that required it to be 332 placed in the config file has bene fixed. DEBUG should now just 333 contain -g. The build system will automatically update things 334 to do the right thing. 335 33620140715: 337 Several ABI breaking changes were merged to CTL and new iSCSI code. 338 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 339 iscsictl need to be rebuilt to work with a new kernel. 340 34120140708: 342 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 343 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 344 which differs from the behaviour controlled by this knob.) 345 34620140608: 347 On i386 and amd64 systems, the onifconsole flag is now set by default 348 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 349 as a login TTY if it is set in the bootloader as an active kernel 350 console. No changes in behavior should result otherwise. To revert to 351 the previous behavior, set ttyu0 to "off" in /etc/ttys. 352 35320140512: 354 Clang and llvm have been upgraded to 3.4.1 release. 355 35620140321: 357 Clang and llvm have been upgraded to 3.4 release. 358 35920140306: 360 If a Makefile in a tests/ directory was auto-generating a Kyuafile 361 instead of providing an explicit one, this would prevent such 362 Makefile from providing its own Kyuafile in the future during 363 NO_CLEAN builds. This has been fixed in the Makefiles but manual 364 intervention is needed to clean an objdir if you use NO_CLEAN: 365 # find /usr/obj -name Kyuafile | xargs rm -f 366 36720140303: 368 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 369 capability mode support. Please note that enabling the feature in 370 kernel is still highly recommended. 371 37220140227: 373 OpenSSH is now built with sandbox support, and will use sandbox as 374 the default privilege separation method. This requires Capsicum 375 capability mode support in kernel. 376 37720140216: 378 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 379 been deprecated and will not be part of FreeBSD 11.0 and later 380 releases. If you use this driver, please consider switching to 381 the nfe(4) driver instead. 382 38320140120: 384 10.0-RELEASE. 385 38620131216: 387 The behavior of gss_pseudo_random() for the krb5 mechanism 388 has changed, for applications requesting a longer random string 389 than produced by the underlying enctype's pseudo-random() function. 390 In particular, the random string produced from a session key of 391 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 392 be different at the 17th octet and later, after this change. 393 The counter used in the PRF+ construction is now encoded as a 394 big-endian integer in accordance with RFC 4402. 395 __FreeBSD_version is bumped to 1000701. 396 39720131108: 398 The WITHOUT_ATF build knob has been removed and its functionality 399 has been subsumed into the more generic WITHOUT_TESTS. If you were 400 using the former to disable the build of the ATF libraries, you 401 should change your settings to use the latter. 402 40320131031: 404 The default version of mtree is nmtree which is obtained from 405 NetBSD. The output is generally the same, but may vary 406 slightly. If you found you need identical output adding 407 "-F freebsd9" to the command line should do the trick. For the 408 time being, the old mtree is available as fmtree. 409 41020131014: 411 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 412 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 413 1.1.4_8 and verify bsdyml not linked in, before running "make 414 delete-old-libs": 415 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 416 or 417 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 418 41920131010: 420 The rc.d/jail script has been updated to support jail(8) 421 configuration file. The "jail_<jname>_*" rc.conf(5) variables 422 for per-jail configuration are automatically converted to 423 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 424 This is transparently backward compatible. See below about some 425 incompatibilities and rc.conf(5) manual page for more details. 426 427 These variables are now deprecated in favor of jail(8) configuration 428 file. One can use "rc.d/jail config <jname>" command to generate 429 a jail(8) configuration file in /var/run/jail.<jname>.conf without 430 running the jail(8) utility. The default pathname of the 431 configuration file is /etc/jail.conf and can be specified by 432 using $jail_conf or $jail_<jname>_conf variables. 433 434 Please note that jail_devfs_ruleset accepts an integer at 435 this moment. Please consider to rewrite the ruleset name 436 with an integer. 437 43820130930: 439 BIND has been removed from the base system. If all you need 440 is a local resolver, simply enable and start the local_unbound 441 service instead. Otherwise, several versions of BIND are 442 available in the ports tree. The dns/bind99 port is one example. 443 444 With this change, nslookup(1) and dig(1) are no longer in the base 445 system. Users should instead use host(1) and drill(1) which are 446 in the base system. Alternatively, nslookup and dig can 447 be obtained by installing the dns/bind-tools port. 448 44920130916: 450 With the addition of unbound(8), a new unbound user is now 451 required during installworld. "mergemaster -p" can be used to 452 add the user prior to installworld, as documented in the handbook. 453 45420130911: 455 OpenSSH is now built with DNSSEC support, and will by default 456 silently trust signed SSHFP records. This can be controlled with 457 the VerifyHostKeyDNS client configuration setting. DNSSEC support 458 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 459 46020130906: 461 The GNU Compiler Collection and C++ standard library (libstdc++) 462 are no longer built by default on platforms where clang is the system 463 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 464 options in src.conf. 465 46620130905: 467 The PROCDESC kernel option is now part of the GENERIC kernel 468 configuration and is required for the rwhod(8) to work. 469 If you are using custom kernel configuration, you should include 470 'options PROCDESC'. 471 47220130905: 473 The API and ABI related to the Capsicum framework was modified 474 in backward incompatible way. The userland libraries and programs 475 have to be recompiled to work with the new kernel. This includes the 476 following libraries and programs, but the whole buildworld is 477 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 478 kdump, procstat, rwho, rwhod, uniq. 479 48020130903: 481 AES-NI intrinsic support has been added to gcc. The AES-NI module 482 has been updated to use this support. A new gcc is required to build 483 the aesni module on both i386 and amd64. 484 48520130821: 486 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 487 Thus "device padlock_rng" and "device rdrand_rng" should be 488 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 489 49020130813: 491 WITH_ICONV has been split into two feature sets. WITH_ICONV now 492 enables just the iconv* functionality and is now on by default. 493 WITH_LIBICONV_COMPAT enables the libiconv api and link time 494 compatability. Set WITHOUT_ICONV to build the old way. 495 If you have been using WITH_ICONV before, you will very likely 496 need to turn on WITH_LIBICONV_COMPAT. 497 49820130806: 499 INVARIANTS option now enables DEBUG for code with OpenSolaris and 500 Illumos origin, including ZFS. If you have INVARIANTS in your 501 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 502 explicitly. 503 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 504 locks if WITNESS option was set. Because that generated a lot of 505 witness(9) reports and all of them were believed to be false 506 positives, this is no longer done. New option OPENSOLARIS_WITNESS 507 can be used to achieve the previous behavior. 508 50920130806: 510 Timer values in IPv6 data structures now use time_uptime instead 511 of time_second. Although this is not a user-visible functional 512 change, userland utilities which directly use them---ndp(8), 513 rtadvd(8), and rtsold(8) in the base system---need to be updated 514 to r253970 or later. 515 51620130802: 517 find -delete can now delete the pathnames given as arguments, 518 instead of only files found below them or if the pathname did 519 not contain any slashes. Formerly, the following error message 520 would result: 521 522 find: -delete: <path>: relative path potentially not safe 523 524 Deleting the pathnames given as arguments can be prevented 525 without error messages using -mindepth 1 or by changing 526 directory and passing "." as argument to find. This works in the 527 old as well as the new version of find. 528 52920130726: 530 Behavior of devfs rules path matching has been changed. 531 Pattern is now always matched against fully qualified devfs 532 path and slash characters must be explicitly matched by 533 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 534 subdirectories must be reviewed. 535 53620130716: 537 The default ARM ABI has changed to the ARM EABI. The old ABI is 538 incompatible with the ARM EABI and all programs and modules will 539 need to be rebuilt to work with a new kernel. 540 541 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 542 543 NOTE: Support for the old ABI will be removed in the future and 544 users are advised to upgrade. 545 54620130709: 547 pkg_install has been disconnected from the build if you really need it 548 you should add WITH_PKGTOOLS in your src.conf(5). 549 55020130709: 551 Most of network statistics structures were changed to be able 552 keep 64-bits counters. Thus all tools, that work with networking 553 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 554 55520130629: 556 Fix targets that run multiple make's to use && rather than ; 557 so that subsequent steps depend on success of previous. 558 559 NOTE: if building 'universe' with -j* on stable/8 or stable/9 560 it would be better to start the build using bmake, to avoid 561 overloading the machine. 562 56320130618: 564 Fix a bug that allowed a tracing process (e.g. gdb) to write 565 to a memory-mapped file in the traced process's address space 566 even if neither the traced process nor the tracing process had 567 write access to that file. 568 56920130615: 570 CVS has been removed from the base system. An exact copy 571 of the code is available from the devel/cvs port. 572 57320130613: 574 Some people report the following error after the switch to bmake: 575 576 make: illegal option -- J 577 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 578 ... 579 *** [buildworld] Error code 2 580 581 this likely due to an old instance of make in 582 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 583 which src/Makefile will use that blindly, if it exists, so if 584 you see the above error: 585 586 rm -rf `make -V MAKEPATH` 587 588 should resolve it. 589 59020130516: 591 Use bmake by default. 592 Whereas before one could choose to build with bmake via 593 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 594 make. The goal is to remove these knobs for 10-RELEASE. 595 596 It is worth noting that bmake (like gmake) treats the command 597 line as the unit of failure, rather than statements within the 598 command line. Thus '(cd some/where && dosomething)' is safer 599 than 'cd some/where; dosomething'. The '()' allows consistent 600 behavior in parallel build. 601 60220130429: 603 Fix a bug that allows NFS clients to issue READDIR on files. 604 60520130426: 606 The WITHOUT_IDEA option has been removed because 607 the IDEA patent expired. 608 60920130426: 610 The sysctl which controls TRIM support under ZFS has been renamed 611 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 612 enabled by default. 613 61420130425: 615 The mergemaster command now uses the default MAKEOBJDIRPREFIX 616 rather than creating it's own in the temporary directory in 617 order allow access to bootstrapped versions of tools such as 618 install and mtree. When upgrading from version of FreeBSD where 619 the install command does not support -l, you will need to 620 install a new mergemaster command if mergemaster -p is required. 621 This can be accomplished with the command (cd src/usr.sbin/mergemaster 622 && make install). 623 62420130404: 625 Legacy ATA stack, disabled and replaced by new CAM-based one since 626 FreeBSD 9.0, completely removed from the sources. Kernel modules 627 atadisk and atapi*, user-level tools atacontrol and burncd are 628 removed. Kernel option `options ATA_CAM` is now permanently enabled 629 and removed. 630 63120130319: 632 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 633 and socketpair(2). Software, in particular Kerberos, may 634 automatically detect and use these during building. The resulting 635 binaries will not work on older kernels. 636 63720130308: 638 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 639 information, see the respective 20130304 entry). 640 64120130304: 642 Recent commits to callout(9) changed the size of struct callout, 643 so the KBI is probably heavily disturbed. Also, some functions 644 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 645 by macros. Every kernel module using it won't load, so rebuild 646 is requested. 647 648 The ctl device has been re-enabled in GENERIC for i386 and amd64, 649 but does not initialize by default (because of the new CTL_DISABLE 650 option) to save memory. To re-enable it, remove the CTL_DISABLE 651 option from the kernel config file or set kern.cam.ctl.disable=0 652 in /boot/loader.conf. 653 65420130301: 655 The ctl device has been disabled in GENERIC for i386 and amd64. 656 This was done due to the extra memory being allocated at system 657 initialisation time by the ctl driver which was only used if 658 a CAM target device was created. This makes a FreeBSD system 659 unusable on 128MB or less of RAM. 660 66120130208: 662 A new compression method (lz4) has been merged to -HEAD. Please 663 refer to zpool-features(7) for more information. 664 665 Please refer to the "ZFS notes" section of this file for information 666 on upgrading boot ZFS pools. 667 66820130129: 669 A BSD-licensed patch(1) variant has been added and is installed 670 as bsdpatch, being the GNU version the default patch. 671 To inverse the logic and use the BSD-licensed one as default, 672 while having the GNU version installed as gnupatch, rebuild 673 and install world with the WITH_BSD_PATCH knob set. 674 67520130121: 676 Due to the use of the new -l option to install(1) during build 677 and install, you must take care not to directly set the INSTALL 678 make variable in your /etc/make.conf, /etc/src.conf, or on the 679 command line. If you wish to use the -C flag for all installs 680 you may be able to add INSTALL+=-C to /etc/make.conf or 681 /etc/src.conf. 682 68320130118: 684 The install(1) option -M has changed meaning and now takes an 685 argument that is a file or path to append logs to. In the 686 unlikely event that -M was the last option on the command line 687 and the command line contained at least two files and a target 688 directory the first file will have logs appended to it. The -M 689 option served little practical purpose in the last decade so its 690 use is expected to be extremely rare. 691 69220121223: 693 After switching to Clang as the default compiler some users of ZFS 694 on i386 systems started to experience stack overflow kernel panics. 695 Please consider using 'options KSTACK_PAGES=4' in such configurations. 696 69720121222: 698 GEOM_LABEL now mangles label names read from file system metadata. 699 Mangling affect labels containing spaces, non-printable characters, 700 '%' or '"'. Device names in /etc/fstab and other places may need to 701 be updated. 702 70320121217: 704 By default, only the 10 most recent kernel dumps will be saved. To 705 restore the previous behaviour (no limit on the number of kernel dumps 706 stored in the dump directory) add the following line to /etc/rc.conf: 707 708 savecore_flags="" 709 71020121201: 711 With the addition of auditdistd(8), a new auditdistd user is now 712 required during installworld. "mergemaster -p" can be used to 713 add the user prior to installworld, as documented in the handbook. 714 71520121117: 716 The sin6_scope_id member variable in struct sockaddr_in6 is now 717 filled by the kernel before passing the structure to the userland via 718 sysctl or routing socket. This means the KAME-specific embedded scope 719 id in sin6_addr.s6_addr[2] is always cleared in userland application. 720 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 721 __FreeBSD_version is bumped to 1000025. 722 72320121105: 724 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 725 This means that the world and kernel will be compiled with clang 726 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 727 and /usr/bin/cpp. To disable this behavior and revert to building 728 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 729 of current may need to bootstrap WITHOUT_CLANG first if the clang 730 build fails (its compatibility window doesn't extend to the 9 stable 731 branch point). 732 73320121102: 734 The IPFIREWALL_FORWARD kernel option has been removed. Its 735 functionality now turned on by default. 736 73720121023: 738 The ZERO_COPY_SOCKET kernel option has been removed and 739 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 740 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 741 mechanism which is not safe and may result in kernel crashes. 742 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 743 driver supports disposeable external page sized mbuf storage. 744 Proper replacements for both zero-copy mechanisms are under 745 consideration and will eventually lead to complete removal 746 of the two kernel options. 747 74820121023: 749 The IPv4 network stack has been converted to network byte 750 order. The following modules need to be recompiled together 751 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 752 pf(4), ipfw(4), ng_ipfw(4), stf(4). 753 75420121022: 755 Support for non-MPSAFE filesystems was removed from VFS. The 756 VFS_VERSION was bumped, all filesystem modules shall be 757 recompiled. 758 75920121018: 760 All the non-MPSAFE filesystems have been disconnected from 761 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 762 portalfs, smbfs, xfs. 763 76420121016: 765 The interface cloning API and ABI has changed. The following 766 modules need to be recompiled together with kernel: 767 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 768 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 769 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 770 77120121015: 772 The sdhci driver was split in two parts: sdhci (generic SD Host 773 Controller logic) and sdhci_pci (actual hardware driver). 774 No kernel config modifications are required, but if you 775 load sdhc as a module you must switch to sdhci_pci instead. 776 77720121014: 778 Import the FUSE kernel and userland support into base system. 779 78020121013: 781 The GNU sort(1) program has been removed since the BSD-licensed 782 sort(1) has been the default for quite some time and no serious 783 problems have been reported. The corresponding WITH_GNU_SORT 784 knob has also gone. 785 78620121006: 787 The pfil(9) API/ABI for AF_INET family has been changed. Packet 788 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 789 with new kernel. 790 79120121001: 792 The net80211(4) ABI has been changed to allow for improved driver 793 PS-POLL and power-save support. All wireless drivers need to be 794 recompiled to work with the new kernel. 795 79620120913: 797 The random(4) support for the VIA hardware random number 798 generator (`PADLOCK') is no longer enabled unconditionally. 799 Add the padlock_rng device in the custom kernel config if 800 needed. The GENERIC kernels on i386 and amd64 do include the 801 device, so the change only affects the custom kernel 802 configurations. 803 80420120908: 805 The pf(4) packet filter ABI has been changed. pfctl(8) and 806 snmp_pf module need to be recompiled to work with new kernel. 807 80820120828: 809 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 810 to -HEAD. Pools that have empty_bpobj in active state can not be 811 imported read-write with ZFS implementations that do not support 812 this feature. For more information read the zpool-features(5) 813 manual page. 814 81520120727: 816 The sparc64 ZFS loader has been changed to no longer try to auto- 817 detect ZFS providers based on diskN aliases but now requires these 818 to be explicitly listed in the OFW boot-device environment variable. 819 82020120712: 821 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 822 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 823 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 824 82520120712: 826 The following sysctls and tunables have been renamed for consistency 827 with other variables: 828 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 829 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 830 83120120628: 832 The sort utility has been replaced with BSD sort. For now, GNU sort 833 is also available as "gnusort" or the default can be set back to 834 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 835 installed as "bsdsort". 836 83720120611: 838 A new version of ZFS (pool version 5000) has been merged to -HEAD. 839 Starting with this version the old system of ZFS pool versioning 840 is superseded by "feature flags". This concept enables forward 841 compatibility against certain future changes in functionality of ZFS 842 pools. The first read-only compatible "feature flag" for ZFS pools 843 is named "com.delphix:async_destroy". For more information 844 read the new zpool-features(5) manual page. 845 Please refer to the "ZFS notes" section of this file for information 846 on upgrading boot ZFS pools. 847 84820120417: 849 The malloc(3) implementation embedded in libc now uses sources imported 850 as contrib/jemalloc. The most disruptive API change is to 851 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 852 delete it prior to installworld, and optionally re-create it using the 853 new format after rebooting. See malloc.conf(5) for details 854 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 855 NAMESPACE section). 856 85720120328: 858 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 859 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 860 now spelled mips. This is to aid compatibility with third-party 861 software that expects this naming scheme in uname(3). Little-endian 862 settings are unchanged. If you are updating a big-endian mips64 machine 863 from before this change, you may need to set MACHINE_ARCH=mips64 in 864 your environment before the new build system will recognize your machine. 865 86620120306: 867 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 868 platforms. 869 87020120229: 871 Now unix domain sockets behave "as expected" on nullfs(5). Previously 872 nullfs(5) did not pass through all behaviours to the underlying layer, 873 as a result if we bound to a socket on the lower layer we could connect 874 only to the lower path; if we bound to the upper layer we could connect 875 only to the upper path. The new behavior is one can connect to both the 876 lower and the upper paths regardless what layer path one binds to. 877 87820120211: 879 The getifaddrs upgrade path broken with 20111215 has been restored. 880 If you have upgraded in between 20111215 and 20120209 you need to 881 recompile libc again with your kernel. You still need to recompile 882 world to be able to configure CARP but this restriction already 883 comes from 20111215. 884 88520120114: 886 The set_rcvar() function has been removed from /etc/rc.subr. All 887 base and ports rc.d scripts have been updated, so if you have a 888 port installed with a script in /usr/local/etc/rc.d you can either 889 hand-edit the rcvar= line, or reinstall the port. 890 891 An easy way to handle the mass-update of /etc/rc.d: 892 rm /etc/rc.d/* && mergemaster -i 893 89420120109: 895 panic(9) now stops other CPUs in the SMP systems, disables interrupts 896 on the current CPU and prevents other threads from running. 897 This behavior can be reverted using the kern.stop_scheduler_on_panic 898 tunable/sysctl. 899 The new behavior can be incompatible with kern.sync_on_panic. 900 90120111215: 902 The carp(4) facility has been changed significantly. Configuration 903 of the CARP protocol via ifconfig(8) has changed, as well as format 904 of CARP events submitted to devd(8) has changed. See manual pages 905 for more information. The arpbalance feature of carp(4) is currently 906 not supported anymore. 907 908 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 909 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 910 need to be recompiled. 911 91220111122: 913 The acpi_wmi(4) status device /dev/wmistat has been renamed to 914 /dev/wmistat0. 915 91620111108: 917 The option VFS_ALLOW_NONMPSAFE option has been added in order to 918 explicitely support non-MPSAFE filesystems. 919 It is on by default for all supported platform at this present 920 time. 921 92220111101: 923 The broken amd(4) driver has been replaced with esp(4) in the amd64, 924 i386 and pc98 GENERIC kernel configuration files. 925 92620110930: 927 sysinstall has been removed 928 92920110923: 930 The stable/9 branch created in subversion. This corresponds to the 931 RELENG_9 branch in CVS. 932 93320110913: 934 This commit modifies vfs_register() so that it uses a hash 935 calculation to set vfc_typenum, which is enabled by default. 936 The first time a system is booted after this change, the 937 vfc_typenum values will change for all file systems. The 938 main effect of this is a change to the NFS server file handles 939 for file systems that use vfc_typenum in their fsid, such as ZFS. 940 It will, however, prevent vfc_typenum from changing when file 941 systems are loaded in a different order for subsequent reboots. 942 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 943 until you are ready to remount all NFS clients after a reboot. 944 94520110828: 946 Bump the shared library version numbers for libraries that 947 do not use symbol versioning, have changed the ABI compared 948 to stable/8 and which shared library version was not bumped. 949 Done as part of 9.0-RELEASE cycle. 950 95120110815: 952 During the merge of Capsicum features, the fget(9) KPI was modified. 953 This may require the rebuilding of out-of-tree device drivers -- 954 issues have been reported specifically with the nVidia device driver. 955 __FreeBSD_version is bumped to 900041. 956 957 Also, there is a period between 20110811 and 20110814 where the 958 special devices /dev/{stdin,stdout,stderr} did not work correctly. 959 Building world from a kernel during that window may not work. 960 96120110628: 962 The packet filter (pf) code has been updated to OpenBSD 4.5. 963 You need to update userland tools to be in sync with kernel. 964 This update breaks backward compatibility with earlier pfsync(4) 965 versions. Care must be taken when updating redundant firewall setups. 966 96720110608: 968 The following sysctls and tunables are retired on x86 platforms: 969 machdep.hlt_cpus 970 machdep.hlt_logical_cpus 971 The following sysctl is retired: 972 machdep.hyperthreading_allowed 973 The sysctls were supposed to provide a way to dynamically offline and 974 online selected CPUs on x86 platforms, but the implementation has not 975 been reliable especially with SCHED_ULE scheduler. 976 machdep.hyperthreading_allowed tunable is still available to ignore 977 hyperthreading CPUs at OS level. 978 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 979 where X is an APIC ID of a CPU. Be advised, though, that disabling 980 CPUs in non-uniform fashion will result in non-uniform topology and 981 may lead to sub-optimal system performance with SCHED_ULE, which is 982 a default scheduler. 983 98420110607: 985 cpumask_t type is retired and cpuset_t is used in order to describe 986 a mask of CPUs. 987 98820110531: 989 Changes to ifconfig(8) for dynamic address family detection mandate 990 that you are running a kernel of 20110525 or later. Make sure to 991 follow the update procedure to boot a new kernel before installing 992 world. 993 99420110513: 995 Support for sun4v architecture is officially dropped 996 99720110503: 998 Several KPI breaking changes have been committed to the mii(4) layer, 999 the PHY drivers and consequently some Ethernet drivers using mii(4). 1000 This means that miibus.ko and the modules of the affected Ethernet 1001 drivers need to be recompiled. 1002 1003 Note to kernel developers: Given that the OUI bit reversion problem 1004 was fixed as part of these changes all mii(4) commits related to OUIs, 1005 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 1006 handling, no longer can be merged verbatim to stable/8 and previous 1007 branches. 1008 100920110430: 1010 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 1011 into their kernel configurations along with 'device pci'. 1012 101320110427: 1014 The default NFS client is now the new NFS client, so fstype "newnfs" 1015 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 1016 Although mounts via fstype "nfs" will usually work without userland 1017 changes, it is recommended that the mount(8) and mount_nfs(8) 1018 commands be rebuilt from sources and that a link to mount_nfs called 1019 mount_oldnfs be created. The new client is compiled into the 1020 kernel with "options NFSCL" and this is needed for diskless root 1021 file systems. The GENERIC kernel configs have been changed to use 1022 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 1023 To use the regular/old client, you can "mount -t oldnfs ...". For 1024 a diskless root file system, you must also include a line like: 1025 1026 vfs.root.mountfrom="oldnfs:" 1027 1028 in the boot/loader.conf on the root fs on the NFS server to make 1029 a diskless root fs use the old client. 1030 103120110424: 1032 The GENERIC kernels for all architectures now default to the new 1033 CAM-based ATA stack. It means that all legacy ATA drivers were 1034 removed and replaced by respective CAM drivers. If you are using 1035 ATA device names in /etc/fstab or other places, make sure to update 1036 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1037 where 'Y's are the sequential numbers starting from zero for each type 1038 in order of detection, unless configured otherwise with tunables, 1039 see cam(4)). There will be symbolic links created in /dev/ to map 1040 old adX devices to the respective adaY. They should provide basic 1041 compatibility for file systems mounting in most cases, but they do 1042 not support old user-level APIs and do not have respective providers 1043 in GEOM. Consider using updated management tools with new device names. 1044 1045 It is possible to load devices ahci, ata, siis and mvs as modules, 1046 but option ATA_CAM should remain in kernel configuration to make ata 1047 module work as CAM driver supporting legacy ATA controllers. Device ata 1048 still can be used in modular fashion (atacore + ...). Modules atadisk 1049 and atapi* are not used and won't affect operation in ATA_CAM mode. 1050 Note that to use CAM-based ATA kernel should include CAM devices 1051 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1052 them are parts of the cam module. 1053 1054 ataraid(4) functionality is now supported by the RAID GEOM class. 1055 To use it you can load geom_raid kernel module and use graid(8) tool 1056 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1057 1058 No kernel config options or code have been removed, so if a problem 1059 arises, please report it and optionally revert to the old ATA stack. 1060 In order to do it you can remove from the kernel config: 1061 options ATA_CAM 1062 device ahci 1063 device mvs 1064 device siis 1065 , and instead add back: 1066 device atadisk # ATA disk drives 1067 device ataraid # ATA RAID drives 1068 device atapicd # ATAPI CDROM drives 1069 device atapifd # ATAPI floppy drives 1070 device atapist # ATAPI tape drives 1071 107220110423: 1073 The default NFS server has been changed to the new server, which 1074 was referred to as the experimental server. If you need to switch 1075 back to the old NFS server, you must now put the "-o" option on 1076 both the mountd and nfsd commands. This can be done using the 1077 mountd_flags and nfs_server_flags rc.conf variables until an 1078 update to the rc scripts is committed, which is coming soon. 1079 108020110418: 1081 The GNU Objective-C runtime library (libobjc), and other Objective-C 1082 related components have been removed from the base system. If you 1083 require an Objective-C library, please use one of the available ports. 1084 108520110331: 1086 ath(4) has been split into bus- and device- modules. if_ath contains 1087 the HAL, the TX rate control and the network device code. if_ath_pci 1088 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1089 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1090 in order to use ath on everything else. 1091 1092 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1093 need to load if_ath and if_ath_pci for ath(4) operation. 1094 109520110314: 1096 As part of the replacement of sysinstall, the process of building 1097 release media has changed significantly. For details, please re-read 1098 release(7), which has been updated to reflect the new build process. 1099 110020110218: 1101 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1102 is the last available version under GPLv2. It brings a number of new 1103 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1104 4.1 and SSE 4.2), better support for powerpc64, a number of new 1105 directives, and lots of other small improvements. See the ChangeLog 1106 file in contrib/binutils for the full details. 1107 110820110218: 1109 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1110 compliant, and will now use half of hash for authentication. 1111 This will break interoperability with all stacks (including all 1112 actual FreeBSD versions) who implement 1113 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1114 authentication). 1115 The only workaround with such peers is to use another HMAC 1116 algorithm for IPsec ("phase 2") authentication. 1117 111820110207: 1119 Remove the uio_yield prototype and symbol. This function has 1120 been misnamed since it was introduced and should not be 1121 globally exposed with this name. The equivalent functionality 1122 is now available using kern_yield(curthread->td_user_pri). 1123 The function remains undocumented. 1124 112520110112: 1126 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1127 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1128 for scalar sysctls is defined but disabled. Code that needs 1129 UQUAD to pass the type checking that must compile on older 1130 systems where the define is not present can check against 1131 __FreeBSD_version >= 900030. 1132 1133 The system dialog(1) has been replaced with a new version previously 1134 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1135 with the previous version, but the libdialog associated with it has 1136 a largely incompatible API. As such, the original version of libdialog 1137 will be kept temporarily as libodialog, until its base system consumers 1138 are replaced or updated. Bump __FreeBSD_version to 900030. 1139 114020110103: 1141 If you are trying to run make universe on a -stable system, and you get 1142 the following warning: 1143 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1144 unknown. config(8) likely too old." 1145 or something similar to it, then you must upgrade your -stable system 1146 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1147 stable/8) or build the config from the latest stable/8 branch and 1148 install it on your system. 1149 1150 Prior to this date, building a current universe on 8-stable system from 1151 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1152 error in the first kernel build phase. A new config on those old 1153 systems will fix that problem for older versions of -current. 1154 115520101228: 1156 The TCP stack has been modified to allow Khelp modules to interact with 1157 it via helper hook points and store per-connection data in the TCP 1158 control block. Bump __FreeBSD_version to 900029. User space tools that 1159 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1160 be recompiled. 1161 116220101114: 1163 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1164 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1165 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1166 to take advantage of it instead of using custom implementations. This 1167 means that these drivers now no longer unconditionally advertise 1168 support for flow control but only do so if flow control is a selected 1169 media option. This was implemented in the generic support that way in 1170 order to allow flow control to be switched on and off via ifconfig(8) 1171 with the PHY specific default to typically off in order to protect 1172 from unwanted effects. Consequently, if you used flow control with 1173 one of the above mentioned drivers you now need to explicitly enable 1174 it, for example via: 1175 ifconfig bge0 media auto mediaopt flowcontrol 1176 1177 Along with the above mentioned changes generic support for setting 1178 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1179 e1000phy(4) as well as ip1000phy(4) have been converted to take 1180 advantage of it. This means that these drivers now no longer take the 1181 link0 parameter for selecting master mode but the master media option 1182 has to be used instead, for example like in the following: 1183 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1184 1185 Selection of master mode now is also available with all other PHY 1186 drivers supporting 1000baseT. 1187 118820101111: 1189 The TCP stack has received a significant update to add support for 1190 modularised congestion control and generally improve the clarity of 1191 congestion control decisions. Bump __FreeBSD_version to 900025. User 1192 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1193 sockstat) need to be recompiled. 1194 119520101002: 1196 The man(1) utility has been replaced by a new version that no longer 1197 uses /etc/manpath.config. Please consult man.conf(5) for how to 1198 migrate local entries to the new format. 1199 120020100928: 1201 The copyright strings printed by login(1) and sshd(8) at the time of a 1202 new connection have been removed to follow other operating systems and 1203 upstream sshd. 1204 120520100915: 1206 A workaround for a fixed ld bug has been removed in kernel code, 1207 so make sure that your system ld is built from sources after 1208 revision 210245 from 2010-07-19 (r211583 if building head kernel 1209 on stable/8, r211584 for stable/7; both from 2010-08-21). 1210 A symptom of incorrect ld version is different addresses for 1211 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1212 121320100913: 1214 The $ipv6_prefer variable in rc.conf(5) has been split into 1215 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1216 1217 The $ip6addrctl_policy is a variable to choose a pre-defined 1218 address selection policy set by ip6addrctl(8). A value 1219 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1220 default is "AUTO". 1221 1222 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1223 flag (see an entry of 20090926) is set on an interface with no 1224 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1225 security reason. If you want IPv6 link-local address on all 1226 interfaces by default, set this to "YES". 1227 1228 The old ipv6_prefer="YES" is equivalent to 1229 ipv6_activate_all_interfaces="YES" and 1230 ip6addrctl_policy="ipv6_prefer". 1231 123220100913: 1233 DTrace has grown support for userland tracing. Due to this, DTrace is 1234 now i386 and amd64 only. 1235 dtruss(1) is now installed by default on those systems and a new 1236 kernel module is needed for userland tracing: fasttrap. 1237 No changes to your kernel config file are necessary to enable 1238 userland tracing, but you might consider adding 'STRIP=' and 1239 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1240 to have informative userland stack traces in DTrace (ustack). 1241 124220100725: 1243 The acpi_aiboost(4) driver has been removed in favor of the new 1244 aibs(4) driver. You should update your kernel configuration file. 1245 124620100722: 1247 BSD grep has been imported to the base system and it is built by 1248 default. It is completely BSD licensed, highly GNU-compatible, uses 1249 less memory than its GNU counterpart and has a small codebase. 1250 However, it is slower than its GNU counterpart, which is mostly 1251 noticeable for larger searches, for smaller ones it is measurable 1252 but not significant. The reason is complex, the most important factor 1253 is that we lack a modern and efficient regex library and GNU 1254 overcomes this by optimizing the searches internally. Future work 1255 on improving the regex performance is planned, for the meantime, 1256 users that need better performance, can build GNU grep instead by 1257 setting the WITH_GNU_GREP knob. 1258 125920100713: 1260 Due to the import of powerpc64 support, all existing powerpc kernel 1261 configuration files must be updated with a machine directive like this: 1262 machine powerpc powerpc 1263 1264 In addition, an updated config(8) is required to build powerpc kernels 1265 after this change. 1266 126720100713: 1268 A new version of ZFS (version 15) has been merged to -HEAD. 1269 This version uses a python library for the following subcommands: 1270 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1271 For full functionality of these commands the following port must 1272 be installed: sysutils/py-zfs 1273 127420100429: 1275 'vm_page's are now hashed by physical address to an array of mutexes. 1276 Currently this is only used to serialize access to hold_count. Over 1277 time the page queue mutex will be peeled away. This changes the size 1278 of pmap on every architecture. And requires all callers of vm_page_hold 1279 and vm_page_unhold to be updated. 1280 128120100402: 1282 WITH_CTF can now be specified in src.conf (not recommended, there 1283 are some problems with static executables), make.conf (would also 1284 affect ports which do not use GNU make and do not override the 1285 compile targets) or in the kernel config (via "makeoptions 1286 WITH_CTF=yes"). 1287 When WITH_CTF was specified there before this was silently ignored, 1288 so make sure that WITH_CTF is not used in places which could lead 1289 to unwanted behavior. 1290 129120100311: 1292 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1293 to allow 32-bit compatibility on non-x86 platforms. All kernel 1294 configurations on amd64 and ia64 platforms using these options must 1295 be modified accordingly. 1296 129720100113: 1298 The utmp user accounting database has been replaced with utmpx, 1299 the user accounting interface standardized by POSIX. 1300 Unfortunately the semantics of utmp and utmpx don't match, 1301 making it practically impossible to support both interfaces. 1302 The user accounting database is used by tools like finger(1), 1303 last(1), talk(1), w(1) and ac(8). 1304 1305 All applications in the base system use utmpx. This means only 1306 local binaries (e.g. from the ports tree) may still use these 1307 utmp database files. These applications must be rebuilt to make 1308 use of utmpx. 1309 1310 After the system has been upgraded, it is safe to remove the old 1311 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1312 assuming their contents is of no importance anymore. Old wtmp 1313 databases can only be used by last(1) and ac(8) after they have 1314 been converted to the new format using wtmpcvt(1). 1315 131620100108: 1317 Introduce the kernel thread "deadlock resolver" (which can be enabled 1318 via the DEADLKRES option, see NOTES for more details) and the 1319 sleepq_type() function for sleepqueues. 1320 132120091202: 1322 The rc.firewall and rc.firewall6 were unified, and 1323 rc.firewall6 and rc.d/ip6fw were removed. 1324 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1325 variables are obsoleted. Instead, the following new rc 1326 variables are added to rc.d/ipfw: 1327 1328 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1329 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1330 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1331 1332 The meanings correspond to the relevant IPv4 variables. 1333 133420091125: 1335 8.0-RELEASE. 1336 133720091113: 1338 The default terminal emulation for syscons(4) has been changed 1339 from cons25 to xterm on all platforms except pc98. This means 1340 that the /etc/ttys file needs to be updated to ensure correct 1341 operation of applications on the console. 1342 1343 The terminal emulation style can be toggled per window by using 1344 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1345 options can be used to change the compile-time default back to 1346 cons25. 1347 1348 To prevent graphical artifacts, make sure the TERM environment 1349 variable is set to match the terminal emulation that is being 1350 performed by syscons(4). 1351 135220091109: 1353 The layout of the structure ieee80211req_scan_result has changed. 1354 Applications that require wireless scan results (e.g. ifconfig(8)) 1355 from net80211 need to be recompiled. 1356 1357 Applications such as wpa_supplicant(8) may require a full world 1358 build without using NO_CLEAN in order to get synchronized with the 1359 new structure. 1360 136120091025: 1362 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1363 There's one kernel module for each firmware. Adding "device iwnfw" 1364 to the kernel configuration file means including all three firmware 1365 images inside the kernel. If you want to include just the one for 1366 your wireless card, use the devices iwn4965fw, iwn5000fw or 1367 iwn5150fw. 1368 136920090926: 1370 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1371 into rc.d/netif. The changes are the following: 1372 1373 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1374 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1375 Note that both variables need the "inet6" keyword at the head. 1376 1377 Do not set $ipv6_network_interfaces manually if you do not 1378 understand what you are doing. It is not needed in most cases. 1379 1380 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1381 they are obsolete. 1382 1383 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1384 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1385 1386 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1387 all configured interfaces have "inet6 accept_rtadv" in the 1388 $ifconfig_IF_ipv6. These are for backward compatibility. 1389 1390 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1391 functionality of interfaces with no corresponding 1392 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1393 and the default address selection policy of ip6addrctl(8) 1394 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1395 Note that if you want to configure IPv6 functionality on the 1396 disabled interfaces after boot, first you need to clear the flag by 1397 using ifconfig(8) like: 1398 1399 ifconfig em0 inet6 -ifdisabled 1400 1401 If YES, the default address selection policy is set as 1402 IPv6-preferred. 1403 1404 The default value of $ipv6_prefer is NO. 1405 1406 4. If your system need to receive Router Advertisement messages, 1407 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1408 scripts automatically invoke rtsol(8) when the interface becomes 1409 UP. The Router Advertisement messages are used for SLAAC 1410 (State-Less Address AutoConfiguration). 1411 141220090922: 1413 802.11s D3.03 support was committed. This is incompatible with the 1414 previous code, which was based on D3.0. 1415 141620090912: 1417 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1418 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1419 control whether accepting Router Advertisement messages or not. 1420 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1421 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1422 The ifconfig(8) utility now supports these flags. 1423 142420090910: 1425 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1426 mount(8) and -a option for df(1) to see them. 1427 142820090825: 1429 The old tunable hw.bus.devctl_disable has been superseded by 1430 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1431 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1432 is 1000. 1433 143420090813: 1435 Remove the option STOP_NMI. The default action is now to use NMI only 1436 for KDB via the newly introduced function stop_cpus_hard() and 1437 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1438 143920090803: 1440 The stable/8 branch created in subversion. This corresponds to the 1441 RELENG_8 branch in CVS. 1442 144320090719: 1444 Bump the shared library version numbers for all libraries that do not 1445 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1446 __FreeBSD_version to 800105. 1447 144820090714: 1449 Due to changes in the implementation of virtual network stack support, 1450 all network-related kernel modules must be recompiled. As this change 1451 breaks the ABI, bump __FreeBSD_version to 800104. 1452 145320090713: 1454 The TOE interface to the TCP syncache has been modified to remove 1455 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1456 The cxgb driver is the only TOE consumer affected by this change, and 1457 needs to be recompiled along with the kernel. As this change breaks 1458 the ABI, bump __FreeBSD_version to 800103. 1459 146020090712: 1461 Padding has been added to struct tcpcb, sackhint and tcpstat in 1462 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1463 maintaining the ABI. However, this change breaks the ABI, so bump 1464 __FreeBSD_version to 800102. User space tools that rely on the size of 1465 any of these structs (e.g. sockstat) need to be recompiled. 1466 146720090630: 1468 The NFS_LEGACYRPC option has been removed along with the old kernel 1469 RPC implementation that this option selected. Kernel configurations 1470 may need to be adjusted. 1471 147220090629: 1473 The network interface device nodes at /dev/net/<interface> have been 1474 removed. All ioctl operations can be performed the normal way using 1475 routing sockets. The kqueue functionality can generally be replaced 1476 with routing sockets. 1477 147820090628: 1479 The documentation from the FreeBSD Documentation Project (Handbook, 1480 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1481 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1482 148320090624: 1484 The ABI of various structures related to the SYSV IPC API have been 1485 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1486 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1487 800100. 1488 148920090622: 1490 Layout of struct vnet has changed as routing related variables were 1491 moved to their own Vimage module. Modules need to be recompiled. Bump 1492 __FreeBSD_version to 800099. 1493 149420090619: 1495 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1496 respectively. As long as no more than 16 groups per process are used, 1497 no changes should be visible. When more than 16 groups are used, old 1498 binaries may fail if they call getgroups() or getgrouplist() with 1499 statically sized storage. Recompiling will work around this, but 1500 applications should be modified to use dynamically allocated storage 1501 for group arrays as POSIX.1-2008 does not cap an implementation's 1502 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1503 1504 NFS and portalfs mounts may also be affected as the list of groups is 1505 truncated to 16. Users of NFS who use more than 16 groups, should 1506 take care that negative group permissions are not used on the exported 1507 file systems as they will not be reliable unless a GSSAPI based 1508 authentication method is used. 1509 151020090616: 1511 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1512 option compiles in the support for adaptive spinning for lockmgrs 1513 which want to enable it. The lockinit() function now accepts the flag 1514 LK_ADAPTIVE in order to make the lock object subject to adaptive 1515 spinning when both held in write and read mode. 1516 151720090613: 1518 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1519 changed. User applications that use this ioctl need to be rebuilt. 1520 152120090611: 1522 The layout of struct thread has changed. Kernel and modules need to 1523 be rebuilt. 1524 152520090608: 1526 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1527 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1528 152920090602: 1530 window(1) has been removed from the base system. It can now be 1531 installed from ports. The port is called misc/window. 1532 153320090601: 1534 The way we are storing and accessing `routing table' entries has 1535 changed. Programs reading the FIB, like netstat, need to be 1536 re-compiled. 1537 153820090601: 1539 A new netisr implementation has been added for FreeBSD 8. Network 1540 file system modules, such as igmp, ipdivert, and others, should be 1541 rebuilt. 1542 Bump __FreeBSD_version to 800096. 1543 154420090530: 1545 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1546 more valid. 1547 154820090530: 1549 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1550 Bump __FreeBSD_version to 800094. 1551 155220090529: 1553 Add mnt_xflag field to 'struct mount'. File system modules need to be 1554 rebuilt. 1555 Bump __FreeBSD_version to 800093. 1556 155720090528: 1558 The compiling option ADAPTIVE_SX has been retired while it has been 1559 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1560 The KPI for sx_init_flags() changes as accepting flags: 1561 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1562 been introduced in order to handle the reversed logic. 1563 Bump __FreeBSD_version to 800092. 1564 156520090527: 1566 Add support for hierarchical jails. Remove global securelevel. 1567 Bump __FreeBSD_version to 800091. 1568 156920090523: 1570 The layout of struct vnet_net has changed, therefore modules 1571 need to be rebuilt. 1572 Bump __FreeBSD_version to 800090. 1573 157420090523: 1575 The newly imported zic(8) produces a new format in the output. Please 1576 run tzsetup(8) to install the newly created data to /etc/localtime. 1577 157820090520: 1579 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1580 hw.usb.* and is now consistent again with previous releases. 1581 158220090520: 1583 802.11 monitor mode support was revised and driver api's were changed. 1584 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1585 of DLT_IEEE802_11. No user-visible data structures were changed but 1586 applications that use DLT_IEEE802_11 may require changes. 1587 Bump __FreeBSD_version to 800088. 1588 158920090430: 1590 The layout of the following structs has changed: sysctl_oid, 1591 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1592 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1593 panics may be experienced. World rebuild is required for 1594 correctly checking networking state from userland. 1595 Bump __FreeBSD_version to 800085. 1596 159720090429: 1598 MLDv2 and Source-Specific Multicast (SSM) have been merged 1599 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1600 The implementation of SSM within FreeBSD's IPv6 stack closely 1601 follows the IPv4 implementation. 1602 1603 For kernel developers: 1604 1605 * The most important changes are that the ip6_output() and 1606 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1607 and this lock has been downgraded to a non-recursive mutex. 1608 1609 * As with the changes to the IPv4 stack to support SSM, filtering 1610 of inbound multicast traffic must now be performed by transport 1611 protocols within the IPv6 stack. This does not apply to TCP and 1612 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1613 1614 * The KPIs used by IPv6 multicast are similar to those used by 1615 the IPv4 stack, with the following differences: 1616 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1617 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1618 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1619 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1620 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1621 for MLDv1 have an additional 'timer' argument which is used to 1622 jitter the initial membership report for the solicited-node 1623 multicast membership on-link. 1624 * This is not strictly needed for MLDv2, which already jitters 1625 its report transmissions. However, the 'timer' argument is 1626 preserved in case MLDv1 is active on the interface. 1627 1628 * The KAME linked-list based IPv6 membership implementation has 1629 been refactored to use a vector similar to that used by the IPv4 1630 stack. 1631 Code which maintains a list of its own multicast memberships 1632 internally, e.g. carp, has been updated to reflect the new 1633 semantics. 1634 1635 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1636 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1637 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1638 implementation constraint which needs to be addressed in HEAD. 1639 1640 For application developers: 1641 1642 * The changes are broadly similar to those made for the IPv4 1643 stack. 1644 1645 * The use of IPv4 and IPv6 multicast socket options on the same 1646 socket, using mapped addresses, HAS NOT been tested or supported. 1647 1648 * There are a number of issues with the implementation of various 1649 IPv6 multicast APIs which need to be resolved in the API surface 1650 before the implementation is fully compatible with KAME userland 1651 use, and these are mostly to do with interface index treatment. 1652 1653 * The literature available discusses the use of either the delta / ASM 1654 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1655 using setsourcefilter(3)/getsourcefilter(3). For more information 1656 please refer to RFC 3768, 'Socket Interface Extensions for 1657 Multicast Source Filters'. 1658 1659 * Applications which use the published RFC 3678 APIs should be fine. 1660 1661 For systems administrators: 1662 1663 * The mtest(8) utility has been refactored to support IPv6, in 1664 addition to IPv4. Interface addresses are no longer accepted 1665 as arguments, their names must be used instead. The utility 1666 will map the interface name to its first IPv4 address as 1667 returned by getifaddrs(3). 1668 1669 * The ifmcstat(8) utility has also been updated to print the MLDv2 1670 endpoint state and source filter lists via sysctl(3). 1671 1672 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1673 loopback of IPv6 multicast datagrams by default; it defaults to 1 1674 to preserve the existing behaviour. Disabling multicast loopback is 1675 recommended for optimal system performance. 1676 1677 * The IPv6 MROUTING code has been changed to examine this sysctl 1678 instead of attempting to perform a group lookup before looping 1679 back forwarded datagrams. 1680 1681 Bump __FreeBSD_version to 800084. 1682 168320090422: 1684 Implement low-level Bluetooth HCI API. 1685 Bump __FreeBSD_version to 800083. 1686 168720090419: 1688 The layout of struct malloc_type, used by modules to register new 1689 memory allocation types, has changed. Most modules will need to 1690 be rebuilt or panics may be experienced. 1691 Bump __FreeBSD_version to 800081. 1692 169320090415: 1694 Anticipate overflowing inp_flags - add inp_flags2. 1695 This changes most offsets in inpcb, so checking v4 connection 1696 state will require a world rebuild. 1697 Bump __FreeBSD_version to 800080. 1698 169920090415: 1700 Add an llentry to struct route and struct route_in6. Modules 1701 embedding a struct route will need to be recompiled. 1702 Bump __FreeBSD_version to 800079. 1703 170420090414: 1705 The size of rt_metrics_lite and by extension rtentry has changed. 1706 Networking administration apps will need to be recompiled. 1707 The route command now supports show as an alias for get, weighting 1708 of routes, sticky and nostick flags to alter the behavior of stateful 1709 load balancing. 1710 Bump __FreeBSD_version to 800078. 1711 171220090408: 1713 Do not use Giant for kbdmux(4) locking. This is wrong and 1714 apparently causing more problems than it solves. This will 1715 re-open the issue where interrupt handlers may race with 1716 kbdmux(4) in polling mode. Typical symptoms include (but 1717 not limited to) duplicated and/or missing characters when 1718 low level console functions (such as gets) are used while 1719 interrupts are enabled (for example geli password prompt, 1720 mountroot prompt etc.). Disabling kbdmux(4) may help. 1721 172220090407: 1723 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1724 kernel modules referencing any of the above need to be recompiled. 1725 Bump __FreeBSD_version to 800075. 1726 172720090320: 1728 GEOM_PART has become the default partition slicer for storage devices, 1729 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1730 introduces some changes: 1731 1732 MSDOS/EBR: the devices created from MSDOS extended partition entries 1733 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1734 to devices with offset-based names. fstabs may need to be modified. 1735 1736 BSD: the "geometry does not match label" warning is harmless in most 1737 cases but it points to problems in file system misalignment with 1738 disk geometry. The "c" partition is now implicit, covers the whole 1739 top-level drive and cannot be (mis)used by users. 1740 1741 General: Kernel dumps are now not allowed to be written to devices 1742 whose partition types indicate they are meant to be used for file 1743 systems (or, in case of MSDOS partitions, as something else than 1744 the "386BSD" type). 1745 1746 Most of these changes date approximately from 200812. 1747 174820090319: 1749 The uscanner(4) driver has been removed from the kernel. This follows 1750 Linux removing theirs in 2.6 and making libusb the default interface 1751 (supported by sane). 1752 175320090319: 1754 The multicast forwarding code has been cleaned up. netstat(1) 1755 only relies on KVM now for printing bandwidth upcall meters. 1756 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1757 ip6_mroute_mod respectively. The config(5) options for statically 1758 compiling this code remain the same, i.e. 'options MROUTING'. 1759 176020090315: 1761 Support for the IFF_NEEDSGIANT network interface flag has been 1762 removed, which means that non-MPSAFE network device drivers are no 1763 longer supported. In particular, if_ar, if_sr, and network device 1764 drivers from the old (legacy) USB stack can no longer be built or 1765 used. 1766 176720090313: 1768 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1769 a bunch of new language catalog files have also been added. 1770 This means that some common libc messages are now localized and 1771 they depend on the LC_MESSAGES environmental variable. 1772 177320090313: 1774 The k8temp(4) driver has been renamed to amdtemp(4) since 1775 support for Family 10 and Family 11 CPU families was added. 1776 177720090309: 1778 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1779 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1780 1781 For kernel developers, the most important changes are that the 1782 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1783 and this lock has been downgraded to a non-recursive mutex. 1784 1785 Transport protocols (UDP, Raw IP) are now responsible for filtering 1786 inbound multicast traffic according to group membership and source 1787 filters. The imo_multicast_filter() KPI exists for this purpose. 1788 Transports which do not use multicast (SCTP, TCP) already reject 1789 multicast by default. Forwarding and receive performance may improve 1790 as a mutex acquisition is no longer needed in the ip_input() 1791 low-level input path. in_addmulti() and in_delmulti() are shimmed 1792 to new KPIs which exist to support SSM in-kernel. 1793 1794 For application developers, it is recommended that loopback of 1795 multicast datagrams be disabled for best performance, as this 1796 will still cause the lock to be taken for each looped-back 1797 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1798 be tuned to 0 to disable loopback by default; it defaults to 1 1799 to preserve the existing behaviour. 1800 1801 For systems administrators, to obtain best performance with 1802 multicast reception and multiple groups, it is always recommended 1803 that a card with a suitably precise hash filter is used. Hash 1804 collisions will still result in the lock being taken within the 1805 transport protocol input path to check group membership. 1806 1807 If deploying FreeBSD in an environment with IGMP snooping switches, 1808 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1809 enabled; this forces 224.0.0.0/24 group membership to be announced 1810 via IGMP. 1811 1812 The size of 'struct igmpstat' has changed; netstat needs to be 1813 recompiled to reflect this. 1814 Bump __FreeBSD_version to 800070. 1815 181620090309: 1817 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1818 updated to use it. This requires a buildworld/installworld in order to 1819 update the library and dependencies (usbconfig, etc). Its advisable to 1820 rebuild all ports which uses libusb. More specific directions are given 1821 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1822 libusb are no longer required and can be removed. 1823 182420090302: 1825 A workaround is committed to allow the creation of System V shared 1826 memory segment of size > 2 GB on the 64-bit architectures. 1827 Due to a limitation of the existing ABI, the shm_segsz member 1828 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1829 wrong for large segments. Note that limits must be explicitly 1830 raised to allow such segments to be created. 1831 183220090301: 1833 The layout of struct ifnet has changed, requiring a rebuild of all 1834 network device driver modules. 1835 183620090227: 1837 The /dev handling for the new USB stack has changed, a 1838 buildworld/installworld is required for libusb20. 1839 184020090223: 1841 The new USB2 stack has now been permanently moved in and all kernel and 1842 module names reverted to their previous values (eg, usb, ehci, ohci, 1843 ums, ...). The old usb stack can be compiled in by prefixing the name 1844 with the letter 'o', the old usb modules have been removed. 1845 Updating entry 20090216 for xorg and 20090215 for libmap may still 1846 apply. 1847 184820090217: 1849 The rc.conf(5) option if_up_delay has been renamed to 1850 defaultroute_delay to better reflect its purpose. If you have 1851 customized this setting in /etc/rc.conf you need to update it to 1852 use the new name. 1853 185420090216: 1855 xorg 7.4 wants to configure its input devices via hald which does not 1856 yet work with USB2. If the keyboard/mouse does not work in xorg then 1857 add 1858 Option "AllowEmptyInput" "off" 1859 to your ServerLayout section. This will cause X to use the configured 1860 kbd and mouse sections from your xorg.conf. 1861 186220090215: 1863 The GENERIC kernels for all architectures now default to the new USB2 1864 stack. No kernel config options or code have been removed so if a 1865 problem arises please report it and optionally revert to the old USB 1866 stack. If you are loading USB kernel modules or have a custom kernel 1867 that includes GENERIC then ensure that usb names are also changed over, 1868 eg uftdi -> usb2_serial_ftdi. 1869 1870 Older programs linked against the ports libusb 0.1 need to be 1871 redirected to the new stack's libusb20. /etc/libmap.conf can 1872 be used for this: 1873 # Map old usb library to new one for usb2 stack 1874 libusb-0.1.so.8 libusb20.so.1 1875 187620090209: 1877 All USB ethernet devices now attach as interfaces under the name ueN 1878 (eg. ue0). This is to provide a predictable name as vendors often 1879 change usb chipsets in a product without notice. 1880 188120090203: 1882 The ichsmb(4) driver has been changed to require SMBus slave 1883 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1884 All of the other SMBus controller drivers require left-justified 1885 slave addresses, so this change makes all the drivers provide the 1886 same interface. 1887 188820090201: 1889 INET6 statistics (struct ip6stat) was updated. 1890 netstat(1) needs to be recompiled. 1891 189220090119: 1893 NTFS has been removed from GENERIC kernel on amd64 to match 1894 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1895 will load ntfs.ko module automatically when NTFS support is 1896 actually needed, unless ntfs.ko is not installed or security 1897 level prohibits loading kernel modules. If either is the case, 1898 "options NTFS" has to be added into kernel config. 1899 190020090115: 1901 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1902 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1903 800061. User space tools that rely on the size of struct tcpcb in 1904 tcp_var.h (e.g. sockstat) need to be recompiled. 1905 190620081225: 1907 ng_tty(4) module updated to match the new TTY subsystem. 1908 Due to API change, user-level applications must be updated. 1909 New API support added to mpd5 CVS and expected to be present 1910 in next mpd5.3 release. 1911 191220081219: 1913 With __FreeBSD_version 800060 the makefs tool is part of 1914 the base system (it was a port). 1915 191620081216: 1917 The afdata and ifnet locks have been changed from mutexes to 1918 rwlocks, network modules will need to be re-compiled. 1919 192020081214: 1921 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1922 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1923 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1924 architecture and 40 bytes on 64-bit architecture. The userland 1925 applications "arp" and "ndp" have been updated accordingly. 1926 The output from "netstat -r" shows only routing entries and 1927 none of the L2 information. 1928 192920081130: 1930 __FreeBSD_version 800057 marks the switchover from the 1931 binary ath hal to source code. Users must add the line: 1932 1933 options AH_SUPPORT_AR5416 1934 1935 to their kernel config files when specifying: 1936 1937 device ath_hal 1938 1939 The ath_hal module no longer exists; the code is now compiled 1940 together with the driver in the ath module. It is now 1941 possible to tailor chip support (i.e. reduce the set of chips 1942 and thereby the code size); consult ath_hal(4) for details. 1943 194420081121: 1945 __FreeBSD_version 800054 adds memory barriers to 1946 <machine/atomic.h>, new interfaces to ifnet to facilitate 1947 multiple hardware transmit queues for cards that support 1948 them, and a lock-less ring-buffer implementation to 1949 enable drivers to more efficiently manage queueing of 1950 packets. 1951 195220081117: 1953 A new version of ZFS (version 13) has been merged to -HEAD. 1954 This version has zpool attribute "listsnapshots" off by 1955 default, which means "zfs list" does not show snapshots, 1956 and is the same as Solaris behavior. 1957 195820081028: 1959 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1960 196120081009: 1962 The uhci, ohci, ehci and slhci USB Host controller drivers have 1963 been put into separate modules. If you load the usb module 1964 separately through loader.conf you will need to load the 1965 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1966 controller add the following to loader.conf: 1967 1968 uhci_load="YES" 1969 ehci_load="YES" 1970 197120081009: 1972 The ABI used by the PMC toolset has changed. Please keep 1973 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1974 sync. 1975 197620081009: 1977 atapci kernel module now includes only generic PCI ATA 1978 driver. AHCI driver moved to ataahci kernel module. 1979 All vendor-specific code moved into separate kernel modules: 1980 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1981 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1982 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1983 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1984 198520080820: 1986 The TTY subsystem of the kernel has been replaced by a new 1987 implementation, which provides better scalability and an 1988 improved driver model. Most common drivers have been migrated to 1989 the new TTY subsystem, while others have not. The following 1990 drivers have not yet been ported to the new TTY layer: 1991 1992 PCI/ISA: 1993 cy, digi, rc, rp, sio 1994 1995 USB: 1996 ubser, ucycom 1997 1998 Line disciplines: 1999 ng_h4, ng_tty, ppp, sl, snp 2000 2001 Adding these drivers to your kernel configuration file shall 2002 cause compilation to fail. 2003 200420080818: 2005 ntpd has been upgraded to 4.2.4p5. 2006 200720080801: 2008 OpenSSH has been upgraded to 5.1p1. 2009 2010 For many years, FreeBSD's version of OpenSSH preferred DSA 2011 over RSA for host and user authentication keys. With this 2012 upgrade, we've switched to the vendor's default of RSA over 2013 DSA. This may cause upgraded clients to warn about unknown 2014 host keys even for previously known hosts. Users should 2015 follow the usual procedure for verifying host keys before 2016 accepting the RSA key. 2017 2018 This can be circumvented by setting the "HostKeyAlgorithms" 2019 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 2020 command line. 2021 2022 Please note that the sequence of keys offered for 2023 authentication has been changed as well. You may want to 2024 specify IdentityFile in a different order to revert this 2025 behavior. 2026 202720080713: 2028 The sio(4) driver has been removed from the i386 and amd64 2029 kernel configuration files. This means uart(4) is now the 2030 default serial port driver on those platforms as well. 2031 2032 To prevent collisions with the sio(4) driver, the uart(4) driver 2033 uses different names for its device nodes. This means the 2034 onboard serial port will now most likely be called "ttyu0" 2035 instead of "ttyd0". You may need to reconfigure applications to 2036 use the new device names. 2037 2038 When using the serial port as a boot console, be sure to update 2039 /boot/device.hints and /etc/ttys before booting the new kernel. 2040 If you forget to do so, you can still manually specify the hints 2041 at the loader prompt: 2042 2043 set hint.uart.0.at="isa" 2044 set hint.uart.0.port="0x3F8" 2045 set hint.uart.0.flags="0x10" 2046 set hint.uart.0.irq="4" 2047 boot -s 2048 204920080609: 2050 The gpt(8) utility has been removed. Use gpart(8) to partition 2051 disks instead. 2052 205320080603: 2054 The version that Linuxulator emulates was changed from 2.4.2 2055 to 2.6.16. If you experience any problems with Linux binaries 2056 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2057 if it fixes the problem contact emulation mailing list. 2058 205920080525: 2060 ISDN4BSD (I4B) was removed from the src tree. You may need to 2061 update a your kernel configuration and remove relevant entries. 2062 206320080509: 2064 I have checked in code to support multiple routing tables. 2065 See the man pages setfib(1) and setfib(2). 2066 This is a hopefully backwards compatible version, 2067 but to make use of it you need to compile your kernel 2068 with options ROUTETABLES=2 (or more up to 16). 2069 207020080420: 2071 The 802.11 wireless support was redone to enable multi-bss 2072 operation on devices that are capable. The underlying device 2073 is no longer used directly but instead wlanX devices are 2074 cloned with ifconfig. This requires changes to rc.conf files. 2075 For example, change: 2076 ifconfig_ath0="WPA DHCP" 2077 to 2078 wlans_ath0=wlan0 2079 ifconfig_wlan0="WPA DHCP" 2080 see rc.conf(5) for more details. In addition, mergemaster of 2081 /etc/rc.d is highly recommended. Simultaneous update of userland 2082 and kernel wouldn't hurt either. 2083 2084 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2085 modules were merged into the base wlan module. All references 2086 to these modules (e.g. in kernel config files) must be removed. 2087 208820080408: 2089 psm(4) has gained write(2) support in native operation level. 2090 Arbitrary commands can be written to /dev/psm%d and status can 2091 be read back from it. Therefore, an application is responsible 2092 for status validation and error recovery. It is a no-op in 2093 other operation levels. 2094 209520080312: 2096 Support for KSE threading has been removed from the kernel. To 2097 run legacy applications linked against KSE libmap.conf may 2098 be used. The following libmap.conf may be used to ensure 2099 compatibility with any prior release: 2100 2101 libpthread.so.1 libthr.so.1 2102 libpthread.so.2 libthr.so.2 2103 libkse.so.3 libthr.so.3 2104 210520080301: 2106 The layout of struct vmspace has changed. This affects libkvm 2107 and any executables that link against libkvm and use the 2108 kvm_getprocs() function. In particular, but not exclusively, 2109 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2110 The effects are minimal, but it's advisable to upgrade world 2111 nonetheless. 2112 211320080229: 2114 The latest em driver no longer has support in it for the 2115 82575 adapter, this is now moved to the igb driver. The 2116 split was done to make new features that are incompatible 2117 with older hardware easier to do. 2118 211920080220: 2120 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2121 likewise the kernel option is now GEOM_LINUX_LVM. 2122 212320080211: 2124 The default NFS mount mode has changed from UDP to TCP for 2125 increased reliability. If you rely on (insecurely) NFS 2126 mounting across a firewall you may need to update your 2127 firewall rules. 2128 212920080208: 2130 Belatedly note the addition of m_collapse for compacting 2131 mbuf chains. 2132 213320080126: 2134 The fts(3) structures have been changed to use adequate 2135 integer types for their members and so to be able to cope 2136 with huge file trees. The old fts(3) ABI is preserved 2137 through symbol versioning in libc, so third-party binaries 2138 using fts(3) should still work, although they will not take 2139 advantage of the extended types. At the same time, some 2140 third-party software might fail to build after this change 2141 due to unportable assumptions made in its source code about 2142 fts(3) structure members. Such software should be fixed 2143 by its vendor or, in the worst case, in the ports tree. 2144 FreeBSD_version 800015 marks this change for the unlikely 2145 case that a portable fix is impossible. 2146 214720080123: 2148 To upgrade to -current after this date, you must be running 2149 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2150 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2151 215220071128: 2153 The ADAPTIVE_GIANT kernel option has been retired because its 2154 functionality is the default now. 2155 215620071118: 2157 The AT keyboard emulation of sunkbd(4) has been turned on 2158 by default. In order to make the special symbols of the Sun 2159 keyboards driven by sunkbd(4) work under X these now have 2160 to be configured the same way as Sun USB keyboards driven 2161 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2162 2163 Option "XkbLayout" "us" 2164 Option "XkbRules" "xorg" 2165 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2166 216720071024: 2168 It has been decided that it is desirable to provide ABI 2169 backwards compatibility to the FreeBSD 4/5/6 versions of the 2170 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2171 broken with the introduction of PCI domain support (see the 2172 20070930 entry). Unfortunately, this required the ABI of 2173 PCIOCGETCONF to be broken again in order to be able to 2174 provide backwards compatibility to the old version of that 2175 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2176 again. As for prominent ports this affects neither pciutils 2177 nor xorg-server this time, the hal port needs to be rebuilt 2178 however. 2179 218020071020: 2181 The misnamed kthread_create() and friends have been renamed 2182 to kproc_create() etc. Many of the callers already 2183 used kproc_start().. 2184 I will return kthread_create() and friends in a while 2185 with implementations that actually create threads, not procs. 2186 Renaming corresponds with version 800002. 2187 218820071010: 2189 RELENG_7 branched. 2190 2191COMMON ITEMS: 2192 2193 General Notes 2194 ------------- 2195 Avoid using make -j when upgrading. While generally safe, there are 2196 sometimes problems using -j to upgrade. If your upgrade fails with 2197 -j, please try again without -j. From time to time in the past there 2198 have been problems using -j with buildworld and/or installworld. This 2199 is especially true when upgrading between "distant" versions (eg one 2200 that cross a major release boundary or several minor releases, or when 2201 several months have passed on the -current branch). 2202 2203 Sometimes, obscure build problems are the result of environment 2204 poisoning. This can happen because the make utility reads its 2205 environment when searching for values for global variables. To run 2206 your build attempts in an "environmental clean room", prefix all make 2207 commands with 'env -i '. See the env(1) manual page for more details. 2208 2209 When upgrading from one major version to another it is generally best 2210 to upgrade to the latest code in the currently installed branch first, 2211 then do an upgrade to the new branch. This is the best-tested upgrade 2212 path, and has the highest probability of being successful. Please try 2213 this approach before reporting problems with a major version upgrade. 2214 2215 When upgrading a live system, having a root shell around before 2216 installing anything can help undo problems. Not having a root shell 2217 around can lead to problems if pam has changed too much from your 2218 starting point to allow continued authentication after the upgrade. 2219 2220 ZFS notes 2221 --------- 2222 When upgrading the boot ZFS pool to a new version, always follow 2223 these two steps: 2224 2225 1.) recompile and reinstall the ZFS boot loader and boot block 2226 (this is part of "make buildworld" and "make installworld") 2227 2228 2.) update the ZFS boot block on your boot drive 2229 2230 The following example updates the ZFS boot block on the first 2231 partition (freebsd-boot) of a GPT partitioned drive ad0: 2232 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2233 2234 Non-boot pools do not need these updates. 2235 2236 To build a kernel 2237 ----------------- 2238 If you are updating from a prior version of FreeBSD (even one just 2239 a few days old), you should follow this procedure. It is the most 2240 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2241 2242 make kernel-toolchain 2243 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2244 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2245 2246 To test a kernel once 2247 --------------------- 2248 If you just want to boot a kernel once (because you are not sure 2249 if it works, or if you want to boot a known bad kernel to provide 2250 debugging information) run 2251 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2252 nextboot -k testkernel 2253 2254 To just build a kernel when you know that it won't mess you up 2255 -------------------------------------------------------------- 2256 This assumes you are already running a CURRENT system. Replace 2257 ${arch} with the architecture of your machine (e.g. "i386", 2258 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2259 2260 cd src/sys/${arch}/conf 2261 config KERNEL_NAME_HERE 2262 cd ../compile/KERNEL_NAME_HERE 2263 make depend 2264 make 2265 make install 2266 2267 If this fails, go to the "To build a kernel" section. 2268 2269 To rebuild everything and install it on the current system. 2270 ----------------------------------------------------------- 2271 # Note: sometimes if you are running current you gotta do more than 2272 # is listed here if you are upgrading from a really old current. 2273 2274 <make sure you have good level 0 dumps> 2275 make buildworld 2276 make kernel KERNCONF=YOUR_KERNEL_HERE 2277 [1] 2278 <reboot in single user> [3] 2279 mergemaster -p [5] 2280 make installworld 2281 mergemaster -i [4] 2282 make delete-old [6] 2283 <reboot> 2284 2285 To cross-install current onto a separate partition 2286 -------------------------------------------------- 2287 # In this approach we use a separate partition to hold 2288 # current's root, 'usr', and 'var' directories. A partition 2289 # holding "/", "/usr" and "/var" should be about 2GB in 2290 # size. 2291 2292 <make sure you have good level 0 dumps> 2293 <boot into -stable> 2294 make buildworld 2295 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2296 <maybe newfs current's root partition> 2297 <mount current's root partition on directory ${CURRENT_ROOT}> 2298 make installworld DESTDIR=${CURRENT_ROOT} 2299 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2300 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2301 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2302 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2303 <reboot into current> 2304 <do a "native" rebuild/install as described in the previous section> 2305 <maybe install compatibility libraries from ports/misc/compat*> 2306 <reboot> 2307 2308 2309 To upgrade in-place from stable to current 2310 ---------------------------------------------- 2311 <make sure you have good level 0 dumps> 2312 make buildworld [9] 2313 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2314 [1] 2315 <reboot in single user> [3] 2316 mergemaster -p [5] 2317 make installworld 2318 mergemaster -i [4] 2319 make delete-old [6] 2320 <reboot> 2321 2322 Make sure that you've read the UPDATING file to understand the 2323 tweaks to various things you need. At this point in the life 2324 cycle of current, things change often and you are on your own 2325 to cope. The defaults can also change, so please read ALL of 2326 the UPDATING entries. 2327 2328 Also, if you are tracking -current, you must be subscribed to 2329 freebsd-current@freebsd.org. Make sure that before you update 2330 your sources that you have read and understood all the recent 2331 messages there. If in doubt, please track -stable which has 2332 much fewer pitfalls. 2333 2334 [1] If you have third party modules, such as vmware, you 2335 should disable them at this point so they don't crash your 2336 system on reboot. 2337 2338 [3] From the bootblocks, boot -s, and then do 2339 fsck -p 2340 mount -u / 2341 mount -a 2342 cd src 2343 adjkerntz -i # if CMOS is wall time 2344 Also, when doing a major release upgrade, it is required that 2345 you boot into single user mode to do the installworld. 2346 2347 [4] Note: This step is non-optional. Failure to do this step 2348 can result in a significant reduction in the functionality of the 2349 system. Attempting to do it by hand is not recommended and those 2350 that pursue this avenue should read this file carefully, as well 2351 as the archives of freebsd-current and freebsd-hackers mailing lists 2352 for potential gotchas. The -U option is also useful to consider. 2353 See mergemaster(8) for more information. 2354 2355 [5] Usually this step is a noop. However, from time to time 2356 you may need to do this if you get unknown user in the following 2357 step. It never hurts to do it all the time. You may need to 2358 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2359 install) after the buildworld before this step if you last updated 2360 from current before 20130425 or from -stable before 20130430. 2361 2362 [6] This only deletes old files and directories. Old libraries 2363 can be deleted by "make delete-old-libs", but you have to make 2364 sure that no program is using those libraries anymore. 2365 2366 [8] In order to have a kernel that can run the 4.x binaries needed to 2367 do an installworld, you must include the COMPAT_FREEBSD4 option in 2368 your kernel. Failure to do so may leave you with a system that is 2369 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2370 required to run the 5.x binaries on more recent kernels. And so on 2371 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2372 2373 Make sure that you merge any new devices from GENERIC since the 2374 last time you updated your kernel config file. 2375 2376 [9] When checking out sources, you must include the -P flag to have 2377 cvs prune empty directories. 2378 2379 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2380 "?=" instead of the "=" assignment operator, so that buildworld can 2381 override the CPUTYPE if it needs to. 2382 2383 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2384 not on the command line, or in /etc/make.conf. buildworld will 2385 warn if it is improperly defined. 2386FORMAT: 2387 2388This file contains a list, in reverse chronological order, of major 2389breakages in tracking -current. It is not guaranteed to be a complete 2390list of such breakages, and only contains entries since October 10, 2007. 2391If you need to see UPDATING entries from before that date, you will need 2392to fetch an UPDATING file from an older FreeBSD release. 2393 2394Copyright information: 2395 2396Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2397 2398Redistribution, publication, translation and use, with or without 2399modification, in full or in part, in any form or format of this 2400document are permitted without further permission from the author. 2401 2402THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2403IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2404WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2405DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2406INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2407(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2408SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2409HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2410STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2411IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2412POSSIBILITY OF SUCH DAMAGE. 2413 2414Contact Warner Losh if you have any questions about your use of 2415this document. 2416 2417$FreeBSD: releng/10.1/UPDATING 306336 2016-09-26 08:21:29Z delphij $ 2418