UPDATING revision 300085
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 1920160517 p34 FreeBSD-SA-16:18.atkbd 20 FreeBSD-SA-16:19.sendmsg 21 22 Fix buffer overflow in keyboard driver. [SA-16:18] 23 24 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 25 2620160504 p33 FreeBSD-SA-16:17.openssl 27 FreeBSD-EN-16:08.zfs 28 29 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 30 31 Fix memory leak in ZFS. [EN-16:08] 32 3320160429 p32 FreeBSD-SA-16:16.ntp 34 35 Fix multiple vulnerabilities of ntp. 36 3720160316 p31 FreeBSD-SA-16:14.openssh-xauth 38 FreeBSD-SA-16:15.sysarch 39 FreeBSD-EN-16:04.hyperv 40 41 Fix OpenSSH xauth(1) command injection. [SA-16:14] 42 Fix incorrect argument validation in sysarch(2). [SA-16:15] 43 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04] 44 4520160303 p30 FreeBSD-SA-16:12.openssl 46 47 Fix multiple vulnerabilities of OpenSSL. 48 4920160130 p29 FreeBSD-SA-16:11.openssl 50 51 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 52 5320160127 p28 FreeBSD-SA-16:09.ntp 54 FreeBSD-SA-16:10.linux 55 56 Fix multiple vulnerabilities of ntp. [SA-16:09] 57 58 Fix Linux compatibility layer issetugid(2) system call 59 vulnerability. [SA-16:10] 60 6120160114 p27 FreeBSD-SA-16:07.openssh 62 63 Fix OpenSSH client information leak. [SA-16:07] 64 6520160114 p26 FreeBSD-EN-16:02.pf 66 FreeBSD-EN-16:03.yplib 67 FreeBSD-SA-16:01.sctp 68 FreeBSD-SA-16:02.ntp 69 FreeBSD-SA-16:03.linux 70 FreeBSD-SA-16:04.linux 71 FreeBSD-SA-16:05.tcp 72 FreeBSD-SA-16:06.bsnmpd 73 74 Fix pf(4) generating bad TCP checksums. [EN-16:02] 75 Fix infinite loop in YP/NIS client library. [EN-16:03] 76 Fix remote denial of service in SCTP. [SA-16:01] 77 Update NTP to 4.2.8p5. [SA-16:02] 78 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 79 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 80 Fix crash in TCP MD5 signatures. [SA-16:05] 81 Fix insecure default permissions for snmpd.config. [SA-16:06] 82 8320151205 p25 FreeBSD-SA-15:26.openssl 84 85 Fix multiple OpenSSL vulnerabilities. [SA-15:26] 86 8720151104 p24 FreeBSD-SA-15:25.ntp [revised] 88 FreeBSD-EN-15:19.kqueue 89 FreeBSD-EN-15:20.vm 90 91 Fix regression in ntpd(8) lacking support for RAWDCF reference 92 clock in 10.1-RELEASE-p23. [SA-15:25.ntp] 93 94 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 95 96 Fix applications exiting due to segmentation violation on a correct 97 memory address. [EN-15:20] 98 9920151026: p23 FreeBSD-SA-15:25.ntp 100 101 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 102 103 The configuration file syntax has been changed, thus mergemaster 104 run is recommended. Now the "kod" parameter requires "limited" 105 parameter. If the ntp.conf is not updated, the ntpd will run 106 successfully, but with KoD disabled. 107 10820151002: p22 FreeBSD-SA-15:24.rpcbind [revised] 109 Revised patch to address a regression that prevents NIS from working. 110 11120150929: p21 FreeBSD-SA-15:24.rpcbind 112 113 Fix rpcbind(8) remote denial of service. [SA-15:24] 114 11520150916: p20 FreeBSD-EN-15:18.pkg 116 117 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 118 11920150825: p19 FreeBSD-SA-15:21.amd64 120 FreeBSD-SA-15:22.openssh 121 FreeBSD-EN-15:14.ixgbe 122 FreeBSD-EN-15:15.pkg 123 124 Fix local privilege escalation in IRET handler. [SA-15:21] 125 126 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 127 128 Disabled ixgbe(4) flow-director support. [EN-15:14] 129 130 Fix insufficient check of unsupported pkg(7) signature methods. 131 [EN-15:15] 132 13320150818: p18 FreeBSD-SA-15:20.expat 134 135 Fix multiple integer overflows in expat (libbsdxml) XML parser. 136 [SA-15:20] 137 13820150805: p17 FreeBSD-SA-15:18.bsdpatch 139 FreeBSD-SA-15:19.routed 140 141 Fix patch(1) shell injection vulnerability via ed(1). 142 [SA-15:18] 143 144 Fix routed remote denial of service vulnerability. [SA-15:19] 145 14620150728: p16 FreeBSD-SA-15:14.bsdpatch 147 FreeBSD-SA-15:15.tcp 148 FreeBSD-SA-15:16.openssh 149 150 Fix patch(1) shell injection vulnerability. [SA-15:14] 151 152 Fix resource exhaustion in TCP reassembly. [SA-15:15] 153 154 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 155 15620150721: p15 FreeBSD-SA-15:13.tcp 157 158 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 159 [SA-15:13] 160 16120150630: p14 FreeBSD-EN-15:08.sendmail [revised] 162 FreeBSD-EN-15:09.xlocale 163 FreeBSD-EN-15:10.iconv 164 165 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 166 167 Fix inconsistency between locale and rune locale states. 168 [EN-15:09] 169 170 Improved iconv(3) UTF-7 support. [EN-15:10] 171 17220150618: p13 FreeBSD-EN-15:08.sendmail 173 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 174 17520150612: p12 FreeBSD-SA-15:10.openssl 176 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 177 17820150609: p11 FreeBSD-EN-15:06.file 179 FreeBSD-EN-15:07.zfs 180 181 Updated base system file(1) to 5.22 to address multiple denial 182 of service issues. [EN-15:06] 183 184 Improved reliability of ZFS when TRIM/UNMAP and/or L2ARC is used. 185 [EN-15:07] 186 18720150513: p10 FreeBSD-EN-15:04.freebsd-update 188 FreeBSD-EN-15:05.ufs 189 190 Fix bug with freebsd-update(8) that does not ensure the previous 191 upgrade was completed. [EN-15:04] 192 193 Fix deadlock on reboot with UFS tuned with SU+J. [EN-15:05] 194 19520150407: p9 FreeBSD-SA-15:04.igmp [revised] 196 FreeBSD-SA-15:07.ntp 197 FreeBSD-SA-15:08.bsdinstall 198 FreeBSD-SA-15:09.ipv6 199 200 Improved patch for SA-15:04.igmp. 201 202 Fix multiple vulnerabilities of ntp. [SA-15:07] 203 204 Fix bsdinstall(8) insecure default GELI keyfile permissions. [SA-15:08] 205 206 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 207 20820150320: p8 209 Fix patch for SA-15:06.openssl. 210 21120150319: p7 FreeBSD-SA-15:06.openssl 212 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 213 21420150225: p6 FreeBSD-SA-15:04.igmp 215 FreeBSD-EN-15:01.vt 216 FreeBSD-EN-15:02.openssl 217 FreeBSD-EN-15:03.freebsd-update 218 219 Fix integer overflow in IGMP protocol. [SA-15:04] 220 221 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 222 223 Updated base system OpenSSL to 1.0.1l. [EN-15:02] 224 225 Fix freebsd-update libraries update ordering issue. [EN-15:03] 226 22720150127: p5 FreeBSD-SA-15:02.kmem 228 FreeBSD-SA-15:03.sctp 229 230 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 231 vulnerability. [SA-15:02] 232 233 Fix SCTP stream reset vulnerability. [SA-15:03] 234 23520150114: p4 FreeBSD-SA-15:01.openssl 236 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 237 23820141223: p3 FreeBSD-SA-14:31.ntp 239 FreeBSD-EN-14:13.freebsd-update 240 241 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 242 Fix directory deletion issue in freebsd-update. [EN-14:13] 243 24420141217: p2 FreeBSD-SA-14:30.unbound 245 Fix unbound remote denial of service vulnerability. 246 24720141210: p1 FreeBSD-SA-14:27.stdio 248 FreeBSD-SA-14:28.file 249 250 Fix buffer overflow in stdio. [SA-14:27] 251 252 Fix multiple vulnerabilities in file(1) and libmagic(3). 253 [SA-14:28] 254 25520140904: 256 The ofwfb driver, used to provide a graphics console on PowerPC when 257 using vt(4), no longer allows mmap() of all of physical memory. This 258 will prevent Xorg on PowerPC with some ATI graphics cards from 259 initializing properly unless x11-servers/xorg-server is updated to 260 1.12.4_8 or newer. 261 26220140831: 263 The libatf-c and libatf-c++ major versions were downgraded to 0 and 264 1 respectively to match the upstream numbers. They were out of 265 sync because, when they were originally added to FreeBSD, the 266 upstream versions were not respected. These libraries are private 267 and not yet built by default, so renumbering them should be a 268 non-issue. However, unclean source trees will yield broken test 269 programs once the operator executes "make delete-old-libs" after a 270 "make installworld". 271 272 Additionally, the atf-sh binary was made private by moving it into 273 /usr/libexec/. Already-built shell test programs will keep the 274 path to the old binary so they will break after "make delete-old" 275 is run. 276 277 If you are using WITH_TESTS=yes (not the default), wipe the object 278 tree and rebuild from scratch to prevent spurious test failures. 279 This is only needed once: the misnumbered libraries and misplaced 280 binaries have been added to OptionalObsoleteFiles.inc so they will 281 be removed during a clean upgrade. 282 28320140814: 284 The ixgbe tunables now match their sysctl counterparts, for example: 285 hw.ixgbe.enable_aim => hw.ix.enable_aim 286 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 287 28820140801: 289 The NFSv4.1 server committed by r269398 changes the internal 290 function call interfaces used between the NFS and krpc modules. 291 As such, __FreeBSD_version was bumped. 292 29320140729: 294 The default unbound configuration has been modified to address 295 issues with reverse lookups on networks that use private 296 address ranges. If you use the local_unbound service, run 297 "service local_unbound setup" as root to regenerate your 298 configuration, then "service local_unbound reload" to load the 299 new configuration. 300 30120140717: 302 It is no longer necessary to include the dwarf version in your DEBUG 303 options in your kernel config file. The bug that required it to be 304 placed in the config file has bene fixed. DEBUG should now just 305 contain -g. The build system will automatically update things 306 to do the right thing. 307 30820140715: 309 Several ABI breaking changes were merged to CTL and new iSCSI code. 310 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 311 iscsictl need to be rebuilt to work with a new kernel. 312 31320140708: 314 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 315 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 316 which differs from the behaviour controlled by this knob.) 317 31820140608: 319 On i386 and amd64 systems, the onifconsole flag is now set by default 320 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 321 as a login TTY if it is set in the bootloader as an active kernel 322 console. No changes in behavior should result otherwise. To revert to 323 the previous behavior, set ttyu0 to "off" in /etc/ttys. 324 32520140512: 326 Clang and llvm have been upgraded to 3.4.1 release. 327 32820140321: 329 Clang and llvm have been upgraded to 3.4 release. 330 33120140306: 332 If a Makefile in a tests/ directory was auto-generating a Kyuafile 333 instead of providing an explicit one, this would prevent such 334 Makefile from providing its own Kyuafile in the future during 335 NO_CLEAN builds. This has been fixed in the Makefiles but manual 336 intervention is needed to clean an objdir if you use NO_CLEAN: 337 # find /usr/obj -name Kyuafile | xargs rm -f 338 33920140303: 340 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 341 capability mode support. Please note that enabling the feature in 342 kernel is still highly recommended. 343 34420140227: 345 OpenSSH is now built with sandbox support, and will use sandbox as 346 the default privilege separation method. This requires Capsicum 347 capability mode support in kernel. 348 34920140216: 350 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 351 been deprecated and will not be part of FreeBSD 11.0 and later 352 releases. If you use this driver, please consider switching to 353 the nfe(4) driver instead. 354 35520140120: 356 10.0-RELEASE. 357 35820131216: 359 The behavior of gss_pseudo_random() for the krb5 mechanism 360 has changed, for applications requesting a longer random string 361 than produced by the underlying enctype's pseudo-random() function. 362 In particular, the random string produced from a session key of 363 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 364 be different at the 17th octet and later, after this change. 365 The counter used in the PRF+ construction is now encoded as a 366 big-endian integer in accordance with RFC 4402. 367 __FreeBSD_version is bumped to 1000701. 368 36920131108: 370 The WITHOUT_ATF build knob has been removed and its functionality 371 has been subsumed into the more generic WITHOUT_TESTS. If you were 372 using the former to disable the build of the ATF libraries, you 373 should change your settings to use the latter. 374 37520131031: 376 The default version of mtree is nmtree which is obtained from 377 NetBSD. The output is generally the same, but may vary 378 slightly. If you found you need identical output adding 379 "-F freebsd9" to the command line should do the trick. For the 380 time being, the old mtree is available as fmtree. 381 38220131014: 383 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 384 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 385 1.1.4_8 and verify bsdyml not linked in, before running "make 386 delete-old-libs": 387 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 388 or 389 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 390 39120131010: 392 The rc.d/jail script has been updated to support jail(8) 393 configuration file. The "jail_<jname>_*" rc.conf(5) variables 394 for per-jail configuration are automatically converted to 395 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 396 This is transparently backward compatible. See below about some 397 incompatibilities and rc.conf(5) manual page for more details. 398 399 These variables are now deprecated in favor of jail(8) configuration 400 file. One can use "rc.d/jail config <jname>" command to generate 401 a jail(8) configuration file in /var/run/jail.<jname>.conf without 402 running the jail(8) utility. The default pathname of the 403 configuration file is /etc/jail.conf and can be specified by 404 using $jail_conf or $jail_<jname>_conf variables. 405 406 Please note that jail_devfs_ruleset accepts an integer at 407 this moment. Please consider to rewrite the ruleset name 408 with an integer. 409 41020130930: 411 BIND has been removed from the base system. If all you need 412 is a local resolver, simply enable and start the local_unbound 413 service instead. Otherwise, several versions of BIND are 414 available in the ports tree. The dns/bind99 port is one example. 415 416 With this change, nslookup(1) and dig(1) are no longer in the base 417 system. Users should instead use host(1) and drill(1) which are 418 in the base system. Alternatively, nslookup and dig can 419 be obtained by installing the dns/bind-tools port. 420 42120130916: 422 With the addition of unbound(8), a new unbound user is now 423 required during installworld. "mergemaster -p" can be used to 424 add the user prior to installworld, as documented in the handbook. 425 42620130911: 427 OpenSSH is now built with DNSSEC support, and will by default 428 silently trust signed SSHFP records. This can be controlled with 429 the VerifyHostKeyDNS client configuration setting. DNSSEC support 430 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 431 43220130906: 433 The GNU Compiler Collection and C++ standard library (libstdc++) 434 are no longer built by default on platforms where clang is the system 435 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 436 options in src.conf. 437 43820130905: 439 The PROCDESC kernel option is now part of the GENERIC kernel 440 configuration and is required for the rwhod(8) to work. 441 If you are using custom kernel configuration, you should include 442 'options PROCDESC'. 443 44420130905: 445 The API and ABI related to the Capsicum framework was modified 446 in backward incompatible way. The userland libraries and programs 447 have to be recompiled to work with the new kernel. This includes the 448 following libraries and programs, but the whole buildworld is 449 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 450 kdump, procstat, rwho, rwhod, uniq. 451 45220130903: 453 AES-NI intrinsic support has been added to gcc. The AES-NI module 454 has been updated to use this support. A new gcc is required to build 455 the aesni module on both i386 and amd64. 456 45720130821: 458 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 459 Thus "device padlock_rng" and "device rdrand_rng" should be 460 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 461 46220130813: 463 WITH_ICONV has been split into two feature sets. WITH_ICONV now 464 enables just the iconv* functionality and is now on by default. 465 WITH_LIBICONV_COMPAT enables the libiconv api and link time 466 compatability. Set WITHOUT_ICONV to build the old way. 467 If you have been using WITH_ICONV before, you will very likely 468 need to turn on WITH_LIBICONV_COMPAT. 469 47020130806: 471 INVARIANTS option now enables DEBUG for code with OpenSolaris and 472 Illumos origin, including ZFS. If you have INVARIANTS in your 473 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 474 explicitly. 475 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 476 locks if WITNESS option was set. Because that generated a lot of 477 witness(9) reports and all of them were believed to be false 478 positives, this is no longer done. New option OPENSOLARIS_WITNESS 479 can be used to achieve the previous behavior. 480 48120130806: 482 Timer values in IPv6 data structures now use time_uptime instead 483 of time_second. Although this is not a user-visible functional 484 change, userland utilities which directly use them---ndp(8), 485 rtadvd(8), and rtsold(8) in the base system---need to be updated 486 to r253970 or later. 487 48820130802: 489 find -delete can now delete the pathnames given as arguments, 490 instead of only files found below them or if the pathname did 491 not contain any slashes. Formerly, the following error message 492 would result: 493 494 find: -delete: <path>: relative path potentially not safe 495 496 Deleting the pathnames given as arguments can be prevented 497 without error messages using -mindepth 1 or by changing 498 directory and passing "." as argument to find. This works in the 499 old as well as the new version of find. 500 50120130726: 502 Behavior of devfs rules path matching has been changed. 503 Pattern is now always matched against fully qualified devfs 504 path and slash characters must be explicitly matched by 505 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 506 subdirectories must be reviewed. 507 50820130716: 509 The default ARM ABI has changed to the ARM EABI. The old ABI is 510 incompatible with the ARM EABI and all programs and modules will 511 need to be rebuilt to work with a new kernel. 512 513 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 514 515 NOTE: Support for the old ABI will be removed in the future and 516 users are advised to upgrade. 517 51820130709: 519 pkg_install has been disconnected from the build if you really need it 520 you should add WITH_PKGTOOLS in your src.conf(5). 521 52220130709: 523 Most of network statistics structures were changed to be able 524 keep 64-bits counters. Thus all tools, that work with networking 525 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 526 52720130629: 528 Fix targets that run multiple make's to use && rather than ; 529 so that subsequent steps depend on success of previous. 530 531 NOTE: if building 'universe' with -j* on stable/8 or stable/9 532 it would be better to start the build using bmake, to avoid 533 overloading the machine. 534 53520130618: 536 Fix a bug that allowed a tracing process (e.g. gdb) to write 537 to a memory-mapped file in the traced process's address space 538 even if neither the traced process nor the tracing process had 539 write access to that file. 540 54120130615: 542 CVS has been removed from the base system. An exact copy 543 of the code is available from the devel/cvs port. 544 54520130613: 546 Some people report the following error after the switch to bmake: 547 548 make: illegal option -- J 549 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 550 ... 551 *** [buildworld] Error code 2 552 553 this likely due to an old instance of make in 554 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 555 which src/Makefile will use that blindly, if it exists, so if 556 you see the above error: 557 558 rm -rf `make -V MAKEPATH` 559 560 should resolve it. 561 56220130516: 563 Use bmake by default. 564 Whereas before one could choose to build with bmake via 565 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 566 make. The goal is to remove these knobs for 10-RELEASE. 567 568 It is worth noting that bmake (like gmake) treats the command 569 line as the unit of failure, rather than statements within the 570 command line. Thus '(cd some/where && dosomething)' is safer 571 than 'cd some/where; dosomething'. The '()' allows consistent 572 behavior in parallel build. 573 57420130429: 575 Fix a bug that allows NFS clients to issue READDIR on files. 576 57720130426: 578 The WITHOUT_IDEA option has been removed because 579 the IDEA patent expired. 580 58120130426: 582 The sysctl which controls TRIM support under ZFS has been renamed 583 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 584 enabled by default. 585 58620130425: 587 The mergemaster command now uses the default MAKEOBJDIRPREFIX 588 rather than creating it's own in the temporary directory in 589 order allow access to bootstrapped versions of tools such as 590 install and mtree. When upgrading from version of FreeBSD where 591 the install command does not support -l, you will need to 592 install a new mergemaster command if mergemaster -p is required. 593 This can be accomplished with the command (cd src/usr.sbin/mergemaster 594 && make install). 595 59620130404: 597 Legacy ATA stack, disabled and replaced by new CAM-based one since 598 FreeBSD 9.0, completely removed from the sources. Kernel modules 599 atadisk and atapi*, user-level tools atacontrol and burncd are 600 removed. Kernel option `options ATA_CAM` is now permanently enabled 601 and removed. 602 60320130319: 604 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 605 and socketpair(2). Software, in particular Kerberos, may 606 automatically detect and use these during building. The resulting 607 binaries will not work on older kernels. 608 60920130308: 610 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 611 information, see the respective 20130304 entry). 612 61320130304: 614 Recent commits to callout(9) changed the size of struct callout, 615 so the KBI is probably heavily disturbed. Also, some functions 616 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 617 by macros. Every kernel module using it won't load, so rebuild 618 is requested. 619 620 The ctl device has been re-enabled in GENERIC for i386 and amd64, 621 but does not initialize by default (because of the new CTL_DISABLE 622 option) to save memory. To re-enable it, remove the CTL_DISABLE 623 option from the kernel config file or set kern.cam.ctl.disable=0 624 in /boot/loader.conf. 625 62620130301: 627 The ctl device has been disabled in GENERIC for i386 and amd64. 628 This was done due to the extra memory being allocated at system 629 initialisation time by the ctl driver which was only used if 630 a CAM target device was created. This makes a FreeBSD system 631 unusable on 128MB or less of RAM. 632 63320130208: 634 A new compression method (lz4) has been merged to -HEAD. Please 635 refer to zpool-features(7) for more information. 636 637 Please refer to the "ZFS notes" section of this file for information 638 on upgrading boot ZFS pools. 639 64020130129: 641 A BSD-licensed patch(1) variant has been added and is installed 642 as bsdpatch, being the GNU version the default patch. 643 To inverse the logic and use the BSD-licensed one as default, 644 while having the GNU version installed as gnupatch, rebuild 645 and install world with the WITH_BSD_PATCH knob set. 646 64720130121: 648 Due to the use of the new -l option to install(1) during build 649 and install, you must take care not to directly set the INSTALL 650 make variable in your /etc/make.conf, /etc/src.conf, or on the 651 command line. If you wish to use the -C flag for all installs 652 you may be able to add INSTALL+=-C to /etc/make.conf or 653 /etc/src.conf. 654 65520130118: 656 The install(1) option -M has changed meaning and now takes an 657 argument that is a file or path to append logs to. In the 658 unlikely event that -M was the last option on the command line 659 and the command line contained at least two files and a target 660 directory the first file will have logs appended to it. The -M 661 option served little practical purpose in the last decade so its 662 use is expected to be extremely rare. 663 66420121223: 665 After switching to Clang as the default compiler some users of ZFS 666 on i386 systems started to experience stack overflow kernel panics. 667 Please consider using 'options KSTACK_PAGES=4' in such configurations. 668 66920121222: 670 GEOM_LABEL now mangles label names read from file system metadata. 671 Mangling affect labels containing spaces, non-printable characters, 672 '%' or '"'. Device names in /etc/fstab and other places may need to 673 be updated. 674 67520121217: 676 By default, only the 10 most recent kernel dumps will be saved. To 677 restore the previous behaviour (no limit on the number of kernel dumps 678 stored in the dump directory) add the following line to /etc/rc.conf: 679 680 savecore_flags="" 681 68220121201: 683 With the addition of auditdistd(8), a new auditdistd user is now 684 required during installworld. "mergemaster -p" can be used to 685 add the user prior to installworld, as documented in the handbook. 686 68720121117: 688 The sin6_scope_id member variable in struct sockaddr_in6 is now 689 filled by the kernel before passing the structure to the userland via 690 sysctl or routing socket. This means the KAME-specific embedded scope 691 id in sin6_addr.s6_addr[2] is always cleared in userland application. 692 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 693 __FreeBSD_version is bumped to 1000025. 694 69520121105: 696 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 697 This means that the world and kernel will be compiled with clang 698 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 699 and /usr/bin/cpp. To disable this behavior and revert to building 700 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 701 of current may need to bootstrap WITHOUT_CLANG first if the clang 702 build fails (its compatibility window doesn't extend to the 9 stable 703 branch point). 704 70520121102: 706 The IPFIREWALL_FORWARD kernel option has been removed. Its 707 functionality now turned on by default. 708 70920121023: 710 The ZERO_COPY_SOCKET kernel option has been removed and 711 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 712 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 713 mechanism which is not safe and may result in kernel crashes. 714 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 715 driver supports disposeable external page sized mbuf storage. 716 Proper replacements for both zero-copy mechanisms are under 717 consideration and will eventually lead to complete removal 718 of the two kernel options. 719 72020121023: 721 The IPv4 network stack has been converted to network byte 722 order. The following modules need to be recompiled together 723 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 724 pf(4), ipfw(4), ng_ipfw(4), stf(4). 725 72620121022: 727 Support for non-MPSAFE filesystems was removed from VFS. The 728 VFS_VERSION was bumped, all filesystem modules shall be 729 recompiled. 730 73120121018: 732 All the non-MPSAFE filesystems have been disconnected from 733 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 734 portalfs, smbfs, xfs. 735 73620121016: 737 The interface cloning API and ABI has changed. The following 738 modules need to be recompiled together with kernel: 739 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 740 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 741 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 742 74320121015: 744 The sdhci driver was split in two parts: sdhci (generic SD Host 745 Controller logic) and sdhci_pci (actual hardware driver). 746 No kernel config modifications are required, but if you 747 load sdhc as a module you must switch to sdhci_pci instead. 748 74920121014: 750 Import the FUSE kernel and userland support into base system. 751 75220121013: 753 The GNU sort(1) program has been removed since the BSD-licensed 754 sort(1) has been the default for quite some time and no serious 755 problems have been reported. The corresponding WITH_GNU_SORT 756 knob has also gone. 757 75820121006: 759 The pfil(9) API/ABI for AF_INET family has been changed. Packet 760 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 761 with new kernel. 762 76320121001: 764 The net80211(4) ABI has been changed to allow for improved driver 765 PS-POLL and power-save support. All wireless drivers need to be 766 recompiled to work with the new kernel. 767 76820120913: 769 The random(4) support for the VIA hardware random number 770 generator (`PADLOCK') is no longer enabled unconditionally. 771 Add the padlock_rng device in the custom kernel config if 772 needed. The GENERIC kernels on i386 and amd64 do include the 773 device, so the change only affects the custom kernel 774 configurations. 775 77620120908: 777 The pf(4) packet filter ABI has been changed. pfctl(8) and 778 snmp_pf module need to be recompiled to work with new kernel. 779 78020120828: 781 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 782 to -HEAD. Pools that have empty_bpobj in active state can not be 783 imported read-write with ZFS implementations that do not support 784 this feature. For more information read the zpool-features(5) 785 manual page. 786 78720120727: 788 The sparc64 ZFS loader has been changed to no longer try to auto- 789 detect ZFS providers based on diskN aliases but now requires these 790 to be explicitly listed in the OFW boot-device environment variable. 791 79220120712: 793 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 794 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 795 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 796 79720120712: 798 The following sysctls and tunables have been renamed for consistency 799 with other variables: 800 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 801 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 802 80320120628: 804 The sort utility has been replaced with BSD sort. For now, GNU sort 805 is also available as "gnusort" or the default can be set back to 806 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 807 installed as "bsdsort". 808 80920120611: 810 A new version of ZFS (pool version 5000) has been merged to -HEAD. 811 Starting with this version the old system of ZFS pool versioning 812 is superseded by "feature flags". This concept enables forward 813 compatibility against certain future changes in functionality of ZFS 814 pools. The first read-only compatible "feature flag" for ZFS pools 815 is named "com.delphix:async_destroy". For more information 816 read the new zpool-features(5) manual page. 817 Please refer to the "ZFS notes" section of this file for information 818 on upgrading boot ZFS pools. 819 82020120417: 821 The malloc(3) implementation embedded in libc now uses sources imported 822 as contrib/jemalloc. The most disruptive API change is to 823 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 824 delete it prior to installworld, and optionally re-create it using the 825 new format after rebooting. See malloc.conf(5) for details 826 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 827 NAMESPACE section). 828 82920120328: 830 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 831 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 832 now spelled mips. This is to aid compatibility with third-party 833 software that expects this naming scheme in uname(3). Little-endian 834 settings are unchanged. If you are updating a big-endian mips64 machine 835 from before this change, you may need to set MACHINE_ARCH=mips64 in 836 your environment before the new build system will recognize your machine. 837 83820120306: 839 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 840 platforms. 841 84220120229: 843 Now unix domain sockets behave "as expected" on nullfs(5). Previously 844 nullfs(5) did not pass through all behaviours to the underlying layer, 845 as a result if we bound to a socket on the lower layer we could connect 846 only to the lower path; if we bound to the upper layer we could connect 847 only to the upper path. The new behavior is one can connect to both the 848 lower and the upper paths regardless what layer path one binds to. 849 85020120211: 851 The getifaddrs upgrade path broken with 20111215 has been restored. 852 If you have upgraded in between 20111215 and 20120209 you need to 853 recompile libc again with your kernel. You still need to recompile 854 world to be able to configure CARP but this restriction already 855 comes from 20111215. 856 85720120114: 858 The set_rcvar() function has been removed from /etc/rc.subr. All 859 base and ports rc.d scripts have been updated, so if you have a 860 port installed with a script in /usr/local/etc/rc.d you can either 861 hand-edit the rcvar= line, or reinstall the port. 862 863 An easy way to handle the mass-update of /etc/rc.d: 864 rm /etc/rc.d/* && mergemaster -i 865 86620120109: 867 panic(9) now stops other CPUs in the SMP systems, disables interrupts 868 on the current CPU and prevents other threads from running. 869 This behavior can be reverted using the kern.stop_scheduler_on_panic 870 tunable/sysctl. 871 The new behavior can be incompatible with kern.sync_on_panic. 872 87320111215: 874 The carp(4) facility has been changed significantly. Configuration 875 of the CARP protocol via ifconfig(8) has changed, as well as format 876 of CARP events submitted to devd(8) has changed. See manual pages 877 for more information. The arpbalance feature of carp(4) is currently 878 not supported anymore. 879 880 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 881 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 882 need to be recompiled. 883 88420111122: 885 The acpi_wmi(4) status device /dev/wmistat has been renamed to 886 /dev/wmistat0. 887 88820111108: 889 The option VFS_ALLOW_NONMPSAFE option has been added in order to 890 explicitely support non-MPSAFE filesystems. 891 It is on by default for all supported platform at this present 892 time. 893 89420111101: 895 The broken amd(4) driver has been replaced with esp(4) in the amd64, 896 i386 and pc98 GENERIC kernel configuration files. 897 89820110930: 899 sysinstall has been removed 900 90120110923: 902 The stable/9 branch created in subversion. This corresponds to the 903 RELENG_9 branch in CVS. 904 90520110913: 906 This commit modifies vfs_register() so that it uses a hash 907 calculation to set vfc_typenum, which is enabled by default. 908 The first time a system is booted after this change, the 909 vfc_typenum values will change for all file systems. The 910 main effect of this is a change to the NFS server file handles 911 for file systems that use vfc_typenum in their fsid, such as ZFS. 912 It will, however, prevent vfc_typenum from changing when file 913 systems are loaded in a different order for subsequent reboots. 914 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 915 until you are ready to remount all NFS clients after a reboot. 916 91720110828: 918 Bump the shared library version numbers for libraries that 919 do not use symbol versioning, have changed the ABI compared 920 to stable/8 and which shared library version was not bumped. 921 Done as part of 9.0-RELEASE cycle. 922 92320110815: 924 During the merge of Capsicum features, the fget(9) KPI was modified. 925 This may require the rebuilding of out-of-tree device drivers -- 926 issues have been reported specifically with the nVidia device driver. 927 __FreeBSD_version is bumped to 900041. 928 929 Also, there is a period between 20110811 and 20110814 where the 930 special devices /dev/{stdin,stdout,stderr} did not work correctly. 931 Building world from a kernel during that window may not work. 932 93320110628: 934 The packet filter (pf) code has been updated to OpenBSD 4.5. 935 You need to update userland tools to be in sync with kernel. 936 This update breaks backward compatibility with earlier pfsync(4) 937 versions. Care must be taken when updating redundant firewall setups. 938 93920110608: 940 The following sysctls and tunables are retired on x86 platforms: 941 machdep.hlt_cpus 942 machdep.hlt_logical_cpus 943 The following sysctl is retired: 944 machdep.hyperthreading_allowed 945 The sysctls were supposed to provide a way to dynamically offline and 946 online selected CPUs on x86 platforms, but the implementation has not 947 been reliable especially with SCHED_ULE scheduler. 948 machdep.hyperthreading_allowed tunable is still available to ignore 949 hyperthreading CPUs at OS level. 950 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 951 where X is an APIC ID of a CPU. Be advised, though, that disabling 952 CPUs in non-uniform fashion will result in non-uniform topology and 953 may lead to sub-optimal system performance with SCHED_ULE, which is 954 a default scheduler. 955 95620110607: 957 cpumask_t type is retired and cpuset_t is used in order to describe 958 a mask of CPUs. 959 96020110531: 961 Changes to ifconfig(8) for dynamic address family detection mandate 962 that you are running a kernel of 20110525 or later. Make sure to 963 follow the update procedure to boot a new kernel before installing 964 world. 965 96620110513: 967 Support for sun4v architecture is officially dropped 968 96920110503: 970 Several KPI breaking changes have been committed to the mii(4) layer, 971 the PHY drivers and consequently some Ethernet drivers using mii(4). 972 This means that miibus.ko and the modules of the affected Ethernet 973 drivers need to be recompiled. 974 975 Note to kernel developers: Given that the OUI bit reversion problem 976 was fixed as part of these changes all mii(4) commits related to OUIs, 977 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 978 handling, no longer can be merged verbatim to stable/8 and previous 979 branches. 980 98120110430: 982 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 983 into their kernel configurations along with 'device pci'. 984 98520110427: 986 The default NFS client is now the new NFS client, so fstype "newnfs" 987 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 988 Although mounts via fstype "nfs" will usually work without userland 989 changes, it is recommended that the mount(8) and mount_nfs(8) 990 commands be rebuilt from sources and that a link to mount_nfs called 991 mount_oldnfs be created. The new client is compiled into the 992 kernel with "options NFSCL" and this is needed for diskless root 993 file systems. The GENERIC kernel configs have been changed to use 994 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 995 To use the regular/old client, you can "mount -t oldnfs ...". For 996 a diskless root file system, you must also include a line like: 997 998 vfs.root.mountfrom="oldnfs:" 999 1000 in the boot/loader.conf on the root fs on the NFS server to make 1001 a diskless root fs use the old client. 1002 100320110424: 1004 The GENERIC kernels for all architectures now default to the new 1005 CAM-based ATA stack. It means that all legacy ATA drivers were 1006 removed and replaced by respective CAM drivers. If you are using 1007 ATA device names in /etc/fstab or other places, make sure to update 1008 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1009 where 'Y's are the sequential numbers starting from zero for each type 1010 in order of detection, unless configured otherwise with tunables, 1011 see cam(4)). There will be symbolic links created in /dev/ to map 1012 old adX devices to the respective adaY. They should provide basic 1013 compatibility for file systems mounting in most cases, but they do 1014 not support old user-level APIs and do not have respective providers 1015 in GEOM. Consider using updated management tools with new device names. 1016 1017 It is possible to load devices ahci, ata, siis and mvs as modules, 1018 but option ATA_CAM should remain in kernel configuration to make ata 1019 module work as CAM driver supporting legacy ATA controllers. Device ata 1020 still can be used in modular fashion (atacore + ...). Modules atadisk 1021 and atapi* are not used and won't affect operation in ATA_CAM mode. 1022 Note that to use CAM-based ATA kernel should include CAM devices 1023 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1024 them are parts of the cam module. 1025 1026 ataraid(4) functionality is now supported by the RAID GEOM class. 1027 To use it you can load geom_raid kernel module and use graid(8) tool 1028 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1029 1030 No kernel config options or code have been removed, so if a problem 1031 arises, please report it and optionally revert to the old ATA stack. 1032 In order to do it you can remove from the kernel config: 1033 options ATA_CAM 1034 device ahci 1035 device mvs 1036 device siis 1037 , and instead add back: 1038 device atadisk # ATA disk drives 1039 device ataraid # ATA RAID drives 1040 device atapicd # ATAPI CDROM drives 1041 device atapifd # ATAPI floppy drives 1042 device atapist # ATAPI tape drives 1043 104420110423: 1045 The default NFS server has been changed to the new server, which 1046 was referred to as the experimental server. If you need to switch 1047 back to the old NFS server, you must now put the "-o" option on 1048 both the mountd and nfsd commands. This can be done using the 1049 mountd_flags and nfs_server_flags rc.conf variables until an 1050 update to the rc scripts is committed, which is coming soon. 1051 105220110418: 1053 The GNU Objective-C runtime library (libobjc), and other Objective-C 1054 related components have been removed from the base system. If you 1055 require an Objective-C library, please use one of the available ports. 1056 105720110331: 1058 ath(4) has been split into bus- and device- modules. if_ath contains 1059 the HAL, the TX rate control and the network device code. if_ath_pci 1060 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1061 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1062 in order to use ath on everything else. 1063 1064 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1065 need to load if_ath and if_ath_pci for ath(4) operation. 1066 106720110314: 1068 As part of the replacement of sysinstall, the process of building 1069 release media has changed significantly. For details, please re-read 1070 release(7), which has been updated to reflect the new build process. 1071 107220110218: 1073 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1074 is the last available version under GPLv2. It brings a number of new 1075 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1076 4.1 and SSE 4.2), better support for powerpc64, a number of new 1077 directives, and lots of other small improvements. See the ChangeLog 1078 file in contrib/binutils for the full details. 1079 108020110218: 1081 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1082 compliant, and will now use half of hash for authentication. 1083 This will break interoperability with all stacks (including all 1084 actual FreeBSD versions) who implement 1085 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1086 authentication). 1087 The only workaround with such peers is to use another HMAC 1088 algorithm for IPsec ("phase 2") authentication. 1089 109020110207: 1091 Remove the uio_yield prototype and symbol. This function has 1092 been misnamed since it was introduced and should not be 1093 globally exposed with this name. The equivalent functionality 1094 is now available using kern_yield(curthread->td_user_pri). 1095 The function remains undocumented. 1096 109720110112: 1098 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1099 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1100 for scalar sysctls is defined but disabled. Code that needs 1101 UQUAD to pass the type checking that must compile on older 1102 systems where the define is not present can check against 1103 __FreeBSD_version >= 900030. 1104 1105 The system dialog(1) has been replaced with a new version previously 1106 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1107 with the previous version, but the libdialog associated with it has 1108 a largely incompatible API. As such, the original version of libdialog 1109 will be kept temporarily as libodialog, until its base system consumers 1110 are replaced or updated. Bump __FreeBSD_version to 900030. 1111 111220110103: 1113 If you are trying to run make universe on a -stable system, and you get 1114 the following warning: 1115 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1116 unknown. config(8) likely too old." 1117 or something similar to it, then you must upgrade your -stable system 1118 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1119 stable/8) or build the config from the latest stable/8 branch and 1120 install it on your system. 1121 1122 Prior to this date, building a current universe on 8-stable system from 1123 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1124 error in the first kernel build phase. A new config on those old 1125 systems will fix that problem for older versions of -current. 1126 112720101228: 1128 The TCP stack has been modified to allow Khelp modules to interact with 1129 it via helper hook points and store per-connection data in the TCP 1130 control block. Bump __FreeBSD_version to 900029. User space tools that 1131 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1132 be recompiled. 1133 113420101114: 1135 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1136 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1137 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1138 to take advantage of it instead of using custom implementations. This 1139 means that these drivers now no longer unconditionally advertise 1140 support for flow control but only do so if flow control is a selected 1141 media option. This was implemented in the generic support that way in 1142 order to allow flow control to be switched on and off via ifconfig(8) 1143 with the PHY specific default to typically off in order to protect 1144 from unwanted effects. Consequently, if you used flow control with 1145 one of the above mentioned drivers you now need to explicitly enable 1146 it, for example via: 1147 ifconfig bge0 media auto mediaopt flowcontrol 1148 1149 Along with the above mentioned changes generic support for setting 1150 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1151 e1000phy(4) as well as ip1000phy(4) have been converted to take 1152 advantage of it. This means that these drivers now no longer take the 1153 link0 parameter for selecting master mode but the master media option 1154 has to be used instead, for example like in the following: 1155 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1156 1157 Selection of master mode now is also available with all other PHY 1158 drivers supporting 1000baseT. 1159 116020101111: 1161 The TCP stack has received a significant update to add support for 1162 modularised congestion control and generally improve the clarity of 1163 congestion control decisions. Bump __FreeBSD_version to 900025. User 1164 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1165 sockstat) need to be recompiled. 1166 116720101002: 1168 The man(1) utility has been replaced by a new version that no longer 1169 uses /etc/manpath.config. Please consult man.conf(5) for how to 1170 migrate local entries to the new format. 1171 117220100928: 1173 The copyright strings printed by login(1) and sshd(8) at the time of a 1174 new connection have been removed to follow other operating systems and 1175 upstream sshd. 1176 117720100915: 1178 A workaround for a fixed ld bug has been removed in kernel code, 1179 so make sure that your system ld is built from sources after 1180 revision 210245 from 2010-07-19 (r211583 if building head kernel 1181 on stable/8, r211584 for stable/7; both from 2010-08-21). 1182 A symptom of incorrect ld version is different addresses for 1183 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1184 118520100913: 1186 The $ipv6_prefer variable in rc.conf(5) has been split into 1187 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1188 1189 The $ip6addrctl_policy is a variable to choose a pre-defined 1190 address selection policy set by ip6addrctl(8). A value 1191 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1192 default is "AUTO". 1193 1194 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1195 flag (see an entry of 20090926) is set on an interface with no 1196 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1197 security reason. If you want IPv6 link-local address on all 1198 interfaces by default, set this to "YES". 1199 1200 The old ipv6_prefer="YES" is equivalent to 1201 ipv6_activate_all_interfaces="YES" and 1202 ip6addrctl_policy="ipv6_prefer". 1203 120420100913: 1205 DTrace has grown support for userland tracing. Due to this, DTrace is 1206 now i386 and amd64 only. 1207 dtruss(1) is now installed by default on those systems and a new 1208 kernel module is needed for userland tracing: fasttrap. 1209 No changes to your kernel config file are necessary to enable 1210 userland tracing, but you might consider adding 'STRIP=' and 1211 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1212 to have informative userland stack traces in DTrace (ustack). 1213 121420100725: 1215 The acpi_aiboost(4) driver has been removed in favor of the new 1216 aibs(4) driver. You should update your kernel configuration file. 1217 121820100722: 1219 BSD grep has been imported to the base system and it is built by 1220 default. It is completely BSD licensed, highly GNU-compatible, uses 1221 less memory than its GNU counterpart and has a small codebase. 1222 However, it is slower than its GNU counterpart, which is mostly 1223 noticeable for larger searches, for smaller ones it is measurable 1224 but not significant. The reason is complex, the most important factor 1225 is that we lack a modern and efficient regex library and GNU 1226 overcomes this by optimizing the searches internally. Future work 1227 on improving the regex performance is planned, for the meantime, 1228 users that need better performance, can build GNU grep instead by 1229 setting the WITH_GNU_GREP knob. 1230 123120100713: 1232 Due to the import of powerpc64 support, all existing powerpc kernel 1233 configuration files must be updated with a machine directive like this: 1234 machine powerpc powerpc 1235 1236 In addition, an updated config(8) is required to build powerpc kernels 1237 after this change. 1238 123920100713: 1240 A new version of ZFS (version 15) has been merged to -HEAD. 1241 This version uses a python library for the following subcommands: 1242 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1243 For full functionality of these commands the following port must 1244 be installed: sysutils/py-zfs 1245 124620100429: 1247 'vm_page's are now hashed by physical address to an array of mutexes. 1248 Currently this is only used to serialize access to hold_count. Over 1249 time the page queue mutex will be peeled away. This changes the size 1250 of pmap on every architecture. And requires all callers of vm_page_hold 1251 and vm_page_unhold to be updated. 1252 125320100402: 1254 WITH_CTF can now be specified in src.conf (not recommended, there 1255 are some problems with static executables), make.conf (would also 1256 affect ports which do not use GNU make and do not override the 1257 compile targets) or in the kernel config (via "makeoptions 1258 WITH_CTF=yes"). 1259 When WITH_CTF was specified there before this was silently ignored, 1260 so make sure that WITH_CTF is not used in places which could lead 1261 to unwanted behavior. 1262 126320100311: 1264 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1265 to allow 32-bit compatibility on non-x86 platforms. All kernel 1266 configurations on amd64 and ia64 platforms using these options must 1267 be modified accordingly. 1268 126920100113: 1270 The utmp user accounting database has been replaced with utmpx, 1271 the user accounting interface standardized by POSIX. 1272 Unfortunately the semantics of utmp and utmpx don't match, 1273 making it practically impossible to support both interfaces. 1274 The user accounting database is used by tools like finger(1), 1275 last(1), talk(1), w(1) and ac(8). 1276 1277 All applications in the base system use utmpx. This means only 1278 local binaries (e.g. from the ports tree) may still use these 1279 utmp database files. These applications must be rebuilt to make 1280 use of utmpx. 1281 1282 After the system has been upgraded, it is safe to remove the old 1283 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1284 assuming their contents is of no importance anymore. Old wtmp 1285 databases can only be used by last(1) and ac(8) after they have 1286 been converted to the new format using wtmpcvt(1). 1287 128820100108: 1289 Introduce the kernel thread "deadlock resolver" (which can be enabled 1290 via the DEADLKRES option, see NOTES for more details) and the 1291 sleepq_type() function for sleepqueues. 1292 129320091202: 1294 The rc.firewall and rc.firewall6 were unified, and 1295 rc.firewall6 and rc.d/ip6fw were removed. 1296 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1297 variables are obsoleted. Instead, the following new rc 1298 variables are added to rc.d/ipfw: 1299 1300 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1301 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1302 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1303 1304 The meanings correspond to the relevant IPv4 variables. 1305 130620091125: 1307 8.0-RELEASE. 1308 130920091113: 1310 The default terminal emulation for syscons(4) has been changed 1311 from cons25 to xterm on all platforms except pc98. This means 1312 that the /etc/ttys file needs to be updated to ensure correct 1313 operation of applications on the console. 1314 1315 The terminal emulation style can be toggled per window by using 1316 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1317 options can be used to change the compile-time default back to 1318 cons25. 1319 1320 To prevent graphical artifacts, make sure the TERM environment 1321 variable is set to match the terminal emulation that is being 1322 performed by syscons(4). 1323 132420091109: 1325 The layout of the structure ieee80211req_scan_result has changed. 1326 Applications that require wireless scan results (e.g. ifconfig(8)) 1327 from net80211 need to be recompiled. 1328 1329 Applications such as wpa_supplicant(8) may require a full world 1330 build without using NO_CLEAN in order to get synchronized with the 1331 new structure. 1332 133320091025: 1334 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1335 There's one kernel module for each firmware. Adding "device iwnfw" 1336 to the kernel configuration file means including all three firmware 1337 images inside the kernel. If you want to include just the one for 1338 your wireless card, use the devices iwn4965fw, iwn5000fw or 1339 iwn5150fw. 1340 134120090926: 1342 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1343 into rc.d/netif. The changes are the following: 1344 1345 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1346 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1347 Note that both variables need the "inet6" keyword at the head. 1348 1349 Do not set $ipv6_network_interfaces manually if you do not 1350 understand what you are doing. It is not needed in most cases. 1351 1352 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1353 they are obsolete. 1354 1355 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1356 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1357 1358 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1359 all configured interfaces have "inet6 accept_rtadv" in the 1360 $ifconfig_IF_ipv6. These are for backward compatibility. 1361 1362 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1363 functionality of interfaces with no corresponding 1364 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1365 and the default address selection policy of ip6addrctl(8) 1366 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1367 Note that if you want to configure IPv6 functionality on the 1368 disabled interfaces after boot, first you need to clear the flag by 1369 using ifconfig(8) like: 1370 1371 ifconfig em0 inet6 -ifdisabled 1372 1373 If YES, the default address selection policy is set as 1374 IPv6-preferred. 1375 1376 The default value of $ipv6_prefer is NO. 1377 1378 4. If your system need to receive Router Advertisement messages, 1379 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1380 scripts automatically invoke rtsol(8) when the interface becomes 1381 UP. The Router Advertisement messages are used for SLAAC 1382 (State-Less Address AutoConfiguration). 1383 138420090922: 1385 802.11s D3.03 support was committed. This is incompatible with the 1386 previous code, which was based on D3.0. 1387 138820090912: 1389 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1390 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1391 control whether accepting Router Advertisement messages or not. 1392 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1393 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1394 The ifconfig(8) utility now supports these flags. 1395 139620090910: 1397 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1398 mount(8) and -a option for df(1) to see them. 1399 140020090825: 1401 The old tunable hw.bus.devctl_disable has been superseded by 1402 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1403 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1404 is 1000. 1405 140620090813: 1407 Remove the option STOP_NMI. The default action is now to use NMI only 1408 for KDB via the newly introduced function stop_cpus_hard() and 1409 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1410 141120090803: 1412 The stable/8 branch created in subversion. This corresponds to the 1413 RELENG_8 branch in CVS. 1414 141520090719: 1416 Bump the shared library version numbers for all libraries that do not 1417 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1418 __FreeBSD_version to 800105. 1419 142020090714: 1421 Due to changes in the implementation of virtual network stack support, 1422 all network-related kernel modules must be recompiled. As this change 1423 breaks the ABI, bump __FreeBSD_version to 800104. 1424 142520090713: 1426 The TOE interface to the TCP syncache has been modified to remove 1427 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1428 The cxgb driver is the only TOE consumer affected by this change, and 1429 needs to be recompiled along with the kernel. As this change breaks 1430 the ABI, bump __FreeBSD_version to 800103. 1431 143220090712: 1433 Padding has been added to struct tcpcb, sackhint and tcpstat in 1434 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1435 maintaining the ABI. However, this change breaks the ABI, so bump 1436 __FreeBSD_version to 800102. User space tools that rely on the size of 1437 any of these structs (e.g. sockstat) need to be recompiled. 1438 143920090630: 1440 The NFS_LEGACYRPC option has been removed along with the old kernel 1441 RPC implementation that this option selected. Kernel configurations 1442 may need to be adjusted. 1443 144420090629: 1445 The network interface device nodes at /dev/net/<interface> have been 1446 removed. All ioctl operations can be performed the normal way using 1447 routing sockets. The kqueue functionality can generally be replaced 1448 with routing sockets. 1449 145020090628: 1451 The documentation from the FreeBSD Documentation Project (Handbook, 1452 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1453 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1454 145520090624: 1456 The ABI of various structures related to the SYSV IPC API have been 1457 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1458 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1459 800100. 1460 146120090622: 1462 Layout of struct vnet has changed as routing related variables were 1463 moved to their own Vimage module. Modules need to be recompiled. Bump 1464 __FreeBSD_version to 800099. 1465 146620090619: 1467 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1468 respectively. As long as no more than 16 groups per process are used, 1469 no changes should be visible. When more than 16 groups are used, old 1470 binaries may fail if they call getgroups() or getgrouplist() with 1471 statically sized storage. Recompiling will work around this, but 1472 applications should be modified to use dynamically allocated storage 1473 for group arrays as POSIX.1-2008 does not cap an implementation's 1474 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1475 1476 NFS and portalfs mounts may also be affected as the list of groups is 1477 truncated to 16. Users of NFS who use more than 16 groups, should 1478 take care that negative group permissions are not used on the exported 1479 file systems as they will not be reliable unless a GSSAPI based 1480 authentication method is used. 1481 148220090616: 1483 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1484 option compiles in the support for adaptive spinning for lockmgrs 1485 which want to enable it. The lockinit() function now accepts the flag 1486 LK_ADAPTIVE in order to make the lock object subject to adaptive 1487 spinning when both held in write and read mode. 1488 148920090613: 1490 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1491 changed. User applications that use this ioctl need to be rebuilt. 1492 149320090611: 1494 The layout of struct thread has changed. Kernel and modules need to 1495 be rebuilt. 1496 149720090608: 1498 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1499 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1500 150120090602: 1502 window(1) has been removed from the base system. It can now be 1503 installed from ports. The port is called misc/window. 1504 150520090601: 1506 The way we are storing and accessing `routing table' entries has 1507 changed. Programs reading the FIB, like netstat, need to be 1508 re-compiled. 1509 151020090601: 1511 A new netisr implementation has been added for FreeBSD 8. Network 1512 file system modules, such as igmp, ipdivert, and others, should be 1513 rebuilt. 1514 Bump __FreeBSD_version to 800096. 1515 151620090530: 1517 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1518 more valid. 1519 152020090530: 1521 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1522 Bump __FreeBSD_version to 800094. 1523 152420090529: 1525 Add mnt_xflag field to 'struct mount'. File system modules need to be 1526 rebuilt. 1527 Bump __FreeBSD_version to 800093. 1528 152920090528: 1530 The compiling option ADAPTIVE_SX has been retired while it has been 1531 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1532 The KPI for sx_init_flags() changes as accepting flags: 1533 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1534 been introduced in order to handle the reversed logic. 1535 Bump __FreeBSD_version to 800092. 1536 153720090527: 1538 Add support for hierarchical jails. Remove global securelevel. 1539 Bump __FreeBSD_version to 800091. 1540 154120090523: 1542 The layout of struct vnet_net has changed, therefore modules 1543 need to be rebuilt. 1544 Bump __FreeBSD_version to 800090. 1545 154620090523: 1547 The newly imported zic(8) produces a new format in the output. Please 1548 run tzsetup(8) to install the newly created data to /etc/localtime. 1549 155020090520: 1551 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1552 hw.usb.* and is now consistent again with previous releases. 1553 155420090520: 1555 802.11 monitor mode support was revised and driver api's were changed. 1556 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1557 of DLT_IEEE802_11. No user-visible data structures were changed but 1558 applications that use DLT_IEEE802_11 may require changes. 1559 Bump __FreeBSD_version to 800088. 1560 156120090430: 1562 The layout of the following structs has changed: sysctl_oid, 1563 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1564 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1565 panics may be experienced. World rebuild is required for 1566 correctly checking networking state from userland. 1567 Bump __FreeBSD_version to 800085. 1568 156920090429: 1570 MLDv2 and Source-Specific Multicast (SSM) have been merged 1571 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1572 The implementation of SSM within FreeBSD's IPv6 stack closely 1573 follows the IPv4 implementation. 1574 1575 For kernel developers: 1576 1577 * The most important changes are that the ip6_output() and 1578 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1579 and this lock has been downgraded to a non-recursive mutex. 1580 1581 * As with the changes to the IPv4 stack to support SSM, filtering 1582 of inbound multicast traffic must now be performed by transport 1583 protocols within the IPv6 stack. This does not apply to TCP and 1584 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1585 1586 * The KPIs used by IPv6 multicast are similar to those used by 1587 the IPv4 stack, with the following differences: 1588 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1589 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1590 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1591 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1592 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1593 for MLDv1 have an additional 'timer' argument which is used to 1594 jitter the initial membership report for the solicited-node 1595 multicast membership on-link. 1596 * This is not strictly needed for MLDv2, which already jitters 1597 its report transmissions. However, the 'timer' argument is 1598 preserved in case MLDv1 is active on the interface. 1599 1600 * The KAME linked-list based IPv6 membership implementation has 1601 been refactored to use a vector similar to that used by the IPv4 1602 stack. 1603 Code which maintains a list of its own multicast memberships 1604 internally, e.g. carp, has been updated to reflect the new 1605 semantics. 1606 1607 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1608 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1609 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1610 implementation constraint which needs to be addressed in HEAD. 1611 1612 For application developers: 1613 1614 * The changes are broadly similar to those made for the IPv4 1615 stack. 1616 1617 * The use of IPv4 and IPv6 multicast socket options on the same 1618 socket, using mapped addresses, HAS NOT been tested or supported. 1619 1620 * There are a number of issues with the implementation of various 1621 IPv6 multicast APIs which need to be resolved in the API surface 1622 before the implementation is fully compatible with KAME userland 1623 use, and these are mostly to do with interface index treatment. 1624 1625 * The literature available discusses the use of either the delta / ASM 1626 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1627 using setsourcefilter(3)/getsourcefilter(3). For more information 1628 please refer to RFC 3768, 'Socket Interface Extensions for 1629 Multicast Source Filters'. 1630 1631 * Applications which use the published RFC 3678 APIs should be fine. 1632 1633 For systems administrators: 1634 1635 * The mtest(8) utility has been refactored to support IPv6, in 1636 addition to IPv4. Interface addresses are no longer accepted 1637 as arguments, their names must be used instead. The utility 1638 will map the interface name to its first IPv4 address as 1639 returned by getifaddrs(3). 1640 1641 * The ifmcstat(8) utility has also been updated to print the MLDv2 1642 endpoint state and source filter lists via sysctl(3). 1643 1644 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1645 loopback of IPv6 multicast datagrams by default; it defaults to 1 1646 to preserve the existing behaviour. Disabling multicast loopback is 1647 recommended for optimal system performance. 1648 1649 * The IPv6 MROUTING code has been changed to examine this sysctl 1650 instead of attempting to perform a group lookup before looping 1651 back forwarded datagrams. 1652 1653 Bump __FreeBSD_version to 800084. 1654 165520090422: 1656 Implement low-level Bluetooth HCI API. 1657 Bump __FreeBSD_version to 800083. 1658 165920090419: 1660 The layout of struct malloc_type, used by modules to register new 1661 memory allocation types, has changed. Most modules will need to 1662 be rebuilt or panics may be experienced. 1663 Bump __FreeBSD_version to 800081. 1664 166520090415: 1666 Anticipate overflowing inp_flags - add inp_flags2. 1667 This changes most offsets in inpcb, so checking v4 connection 1668 state will require a world rebuild. 1669 Bump __FreeBSD_version to 800080. 1670 167120090415: 1672 Add an llentry to struct route and struct route_in6. Modules 1673 embedding a struct route will need to be recompiled. 1674 Bump __FreeBSD_version to 800079. 1675 167620090414: 1677 The size of rt_metrics_lite and by extension rtentry has changed. 1678 Networking administration apps will need to be recompiled. 1679 The route command now supports show as an alias for get, weighting 1680 of routes, sticky and nostick flags to alter the behavior of stateful 1681 load balancing. 1682 Bump __FreeBSD_version to 800078. 1683 168420090408: 1685 Do not use Giant for kbdmux(4) locking. This is wrong and 1686 apparently causing more problems than it solves. This will 1687 re-open the issue where interrupt handlers may race with 1688 kbdmux(4) in polling mode. Typical symptoms include (but 1689 not limited to) duplicated and/or missing characters when 1690 low level console functions (such as gets) are used while 1691 interrupts are enabled (for example geli password prompt, 1692 mountroot prompt etc.). Disabling kbdmux(4) may help. 1693 169420090407: 1695 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1696 kernel modules referencing any of the above need to be recompiled. 1697 Bump __FreeBSD_version to 800075. 1698 169920090320: 1700 GEOM_PART has become the default partition slicer for storage devices, 1701 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1702 introduces some changes: 1703 1704 MSDOS/EBR: the devices created from MSDOS extended partition entries 1705 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1706 to devices with offset-based names. fstabs may need to be modified. 1707 1708 BSD: the "geometry does not match label" warning is harmless in most 1709 cases but it points to problems in file system misalignment with 1710 disk geometry. The "c" partition is now implicit, covers the whole 1711 top-level drive and cannot be (mis)used by users. 1712 1713 General: Kernel dumps are now not allowed to be written to devices 1714 whose partition types indicate they are meant to be used for file 1715 systems (or, in case of MSDOS partitions, as something else than 1716 the "386BSD" type). 1717 1718 Most of these changes date approximately from 200812. 1719 172020090319: 1721 The uscanner(4) driver has been removed from the kernel. This follows 1722 Linux removing theirs in 2.6 and making libusb the default interface 1723 (supported by sane). 1724 172520090319: 1726 The multicast forwarding code has been cleaned up. netstat(1) 1727 only relies on KVM now for printing bandwidth upcall meters. 1728 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1729 ip6_mroute_mod respectively. The config(5) options for statically 1730 compiling this code remain the same, i.e. 'options MROUTING'. 1731 173220090315: 1733 Support for the IFF_NEEDSGIANT network interface flag has been 1734 removed, which means that non-MPSAFE network device drivers are no 1735 longer supported. In particular, if_ar, if_sr, and network device 1736 drivers from the old (legacy) USB stack can no longer be built or 1737 used. 1738 173920090313: 1740 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1741 a bunch of new language catalog files have also been added. 1742 This means that some common libc messages are now localized and 1743 they depend on the LC_MESSAGES environmental variable. 1744 174520090313: 1746 The k8temp(4) driver has been renamed to amdtemp(4) since 1747 support for Family 10 and Family 11 CPU families was added. 1748 174920090309: 1750 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1751 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1752 1753 For kernel developers, the most important changes are that the 1754 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1755 and this lock has been downgraded to a non-recursive mutex. 1756 1757 Transport protocols (UDP, Raw IP) are now responsible for filtering 1758 inbound multicast traffic according to group membership and source 1759 filters. The imo_multicast_filter() KPI exists for this purpose. 1760 Transports which do not use multicast (SCTP, TCP) already reject 1761 multicast by default. Forwarding and receive performance may improve 1762 as a mutex acquisition is no longer needed in the ip_input() 1763 low-level input path. in_addmulti() and in_delmulti() are shimmed 1764 to new KPIs which exist to support SSM in-kernel. 1765 1766 For application developers, it is recommended that loopback of 1767 multicast datagrams be disabled for best performance, as this 1768 will still cause the lock to be taken for each looped-back 1769 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1770 be tuned to 0 to disable loopback by default; it defaults to 1 1771 to preserve the existing behaviour. 1772 1773 For systems administrators, to obtain best performance with 1774 multicast reception and multiple groups, it is always recommended 1775 that a card with a suitably precise hash filter is used. Hash 1776 collisions will still result in the lock being taken within the 1777 transport protocol input path to check group membership. 1778 1779 If deploying FreeBSD in an environment with IGMP snooping switches, 1780 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1781 enabled; this forces 224.0.0.0/24 group membership to be announced 1782 via IGMP. 1783 1784 The size of 'struct igmpstat' has changed; netstat needs to be 1785 recompiled to reflect this. 1786 Bump __FreeBSD_version to 800070. 1787 178820090309: 1789 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1790 updated to use it. This requires a buildworld/installworld in order to 1791 update the library and dependencies (usbconfig, etc). Its advisable to 1792 rebuild all ports which uses libusb. More specific directions are given 1793 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1794 libusb are no longer required and can be removed. 1795 179620090302: 1797 A workaround is committed to allow the creation of System V shared 1798 memory segment of size > 2 GB on the 64-bit architectures. 1799 Due to a limitation of the existing ABI, the shm_segsz member 1800 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1801 wrong for large segments. Note that limits must be explicitly 1802 raised to allow such segments to be created. 1803 180420090301: 1805 The layout of struct ifnet has changed, requiring a rebuild of all 1806 network device driver modules. 1807 180820090227: 1809 The /dev handling for the new USB stack has changed, a 1810 buildworld/installworld is required for libusb20. 1811 181220090223: 1813 The new USB2 stack has now been permanently moved in and all kernel and 1814 module names reverted to their previous values (eg, usb, ehci, ohci, 1815 ums, ...). The old usb stack can be compiled in by prefixing the name 1816 with the letter 'o', the old usb modules have been removed. 1817 Updating entry 20090216 for xorg and 20090215 for libmap may still 1818 apply. 1819 182020090217: 1821 The rc.conf(5) option if_up_delay has been renamed to 1822 defaultroute_delay to better reflect its purpose. If you have 1823 customized this setting in /etc/rc.conf you need to update it to 1824 use the new name. 1825 182620090216: 1827 xorg 7.4 wants to configure its input devices via hald which does not 1828 yet work with USB2. If the keyboard/mouse does not work in xorg then 1829 add 1830 Option "AllowEmptyInput" "off" 1831 to your ServerLayout section. This will cause X to use the configured 1832 kbd and mouse sections from your xorg.conf. 1833 183420090215: 1835 The GENERIC kernels for all architectures now default to the new USB2 1836 stack. No kernel config options or code have been removed so if a 1837 problem arises please report it and optionally revert to the old USB 1838 stack. If you are loading USB kernel modules or have a custom kernel 1839 that includes GENERIC then ensure that usb names are also changed over, 1840 eg uftdi -> usb2_serial_ftdi. 1841 1842 Older programs linked against the ports libusb 0.1 need to be 1843 redirected to the new stack's libusb20. /etc/libmap.conf can 1844 be used for this: 1845 # Map old usb library to new one for usb2 stack 1846 libusb-0.1.so.8 libusb20.so.1 1847 184820090209: 1849 All USB ethernet devices now attach as interfaces under the name ueN 1850 (eg. ue0). This is to provide a predictable name as vendors often 1851 change usb chipsets in a product without notice. 1852 185320090203: 1854 The ichsmb(4) driver has been changed to require SMBus slave 1855 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1856 All of the other SMBus controller drivers require left-justified 1857 slave addresses, so this change makes all the drivers provide the 1858 same interface. 1859 186020090201: 1861 INET6 statistics (struct ip6stat) was updated. 1862 netstat(1) needs to be recompiled. 1863 186420090119: 1865 NTFS has been removed from GENERIC kernel on amd64 to match 1866 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1867 will load ntfs.ko module automatically when NTFS support is 1868 actually needed, unless ntfs.ko is not installed or security 1869 level prohibits loading kernel modules. If either is the case, 1870 "options NTFS" has to be added into kernel config. 1871 187220090115: 1873 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1874 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1875 800061. User space tools that rely on the size of struct tcpcb in 1876 tcp_var.h (e.g. sockstat) need to be recompiled. 1877 187820081225: 1879 ng_tty(4) module updated to match the new TTY subsystem. 1880 Due to API change, user-level applications must be updated. 1881 New API support added to mpd5 CVS and expected to be present 1882 in next mpd5.3 release. 1883 188420081219: 1885 With __FreeBSD_version 800060 the makefs tool is part of 1886 the base system (it was a port). 1887 188820081216: 1889 The afdata and ifnet locks have been changed from mutexes to 1890 rwlocks, network modules will need to be re-compiled. 1891 189220081214: 1893 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1894 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1895 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1896 architecture and 40 bytes on 64-bit architecture. The userland 1897 applications "arp" and "ndp" have been updated accordingly. 1898 The output from "netstat -r" shows only routing entries and 1899 none of the L2 information. 1900 190120081130: 1902 __FreeBSD_version 800057 marks the switchover from the 1903 binary ath hal to source code. Users must add the line: 1904 1905 options AH_SUPPORT_AR5416 1906 1907 to their kernel config files when specifying: 1908 1909 device ath_hal 1910 1911 The ath_hal module no longer exists; the code is now compiled 1912 together with the driver in the ath module. It is now 1913 possible to tailor chip support (i.e. reduce the set of chips 1914 and thereby the code size); consult ath_hal(4) for details. 1915 191620081121: 1917 __FreeBSD_version 800054 adds memory barriers to 1918 <machine/atomic.h>, new interfaces to ifnet to facilitate 1919 multiple hardware transmit queues for cards that support 1920 them, and a lock-less ring-buffer implementation to 1921 enable drivers to more efficiently manage queueing of 1922 packets. 1923 192420081117: 1925 A new version of ZFS (version 13) has been merged to -HEAD. 1926 This version has zpool attribute "listsnapshots" off by 1927 default, which means "zfs list" does not show snapshots, 1928 and is the same as Solaris behavior. 1929 193020081028: 1931 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1932 193320081009: 1934 The uhci, ohci, ehci and slhci USB Host controller drivers have 1935 been put into separate modules. If you load the usb module 1936 separately through loader.conf you will need to load the 1937 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1938 controller add the following to loader.conf: 1939 1940 uhci_load="YES" 1941 ehci_load="YES" 1942 194320081009: 1944 The ABI used by the PMC toolset has changed. Please keep 1945 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1946 sync. 1947 194820081009: 1949 atapci kernel module now includes only generic PCI ATA 1950 driver. AHCI driver moved to ataahci kernel module. 1951 All vendor-specific code moved into separate kernel modules: 1952 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1953 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1954 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1955 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1956 195720080820: 1958 The TTY subsystem of the kernel has been replaced by a new 1959 implementation, which provides better scalability and an 1960 improved driver model. Most common drivers have been migrated to 1961 the new TTY subsystem, while others have not. The following 1962 drivers have not yet been ported to the new TTY layer: 1963 1964 PCI/ISA: 1965 cy, digi, rc, rp, sio 1966 1967 USB: 1968 ubser, ucycom 1969 1970 Line disciplines: 1971 ng_h4, ng_tty, ppp, sl, snp 1972 1973 Adding these drivers to your kernel configuration file shall 1974 cause compilation to fail. 1975 197620080818: 1977 ntpd has been upgraded to 4.2.4p5. 1978 197920080801: 1980 OpenSSH has been upgraded to 5.1p1. 1981 1982 For many years, FreeBSD's version of OpenSSH preferred DSA 1983 over RSA for host and user authentication keys. With this 1984 upgrade, we've switched to the vendor's default of RSA over 1985 DSA. This may cause upgraded clients to warn about unknown 1986 host keys even for previously known hosts. Users should 1987 follow the usual procedure for verifying host keys before 1988 accepting the RSA key. 1989 1990 This can be circumvented by setting the "HostKeyAlgorithms" 1991 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1992 command line. 1993 1994 Please note that the sequence of keys offered for 1995 authentication has been changed as well. You may want to 1996 specify IdentityFile in a different order to revert this 1997 behavior. 1998 199920080713: 2000 The sio(4) driver has been removed from the i386 and amd64 2001 kernel configuration files. This means uart(4) is now the 2002 default serial port driver on those platforms as well. 2003 2004 To prevent collisions with the sio(4) driver, the uart(4) driver 2005 uses different names for its device nodes. This means the 2006 onboard serial port will now most likely be called "ttyu0" 2007 instead of "ttyd0". You may need to reconfigure applications to 2008 use the new device names. 2009 2010 When using the serial port as a boot console, be sure to update 2011 /boot/device.hints and /etc/ttys before booting the new kernel. 2012 If you forget to do so, you can still manually specify the hints 2013 at the loader prompt: 2014 2015 set hint.uart.0.at="isa" 2016 set hint.uart.0.port="0x3F8" 2017 set hint.uart.0.flags="0x10" 2018 set hint.uart.0.irq="4" 2019 boot -s 2020 202120080609: 2022 The gpt(8) utility has been removed. Use gpart(8) to partition 2023 disks instead. 2024 202520080603: 2026 The version that Linuxulator emulates was changed from 2.4.2 2027 to 2.6.16. If you experience any problems with Linux binaries 2028 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2029 if it fixes the problem contact emulation mailing list. 2030 203120080525: 2032 ISDN4BSD (I4B) was removed from the src tree. You may need to 2033 update a your kernel configuration and remove relevant entries. 2034 203520080509: 2036 I have checked in code to support multiple routing tables. 2037 See the man pages setfib(1) and setfib(2). 2038 This is a hopefully backwards compatible version, 2039 but to make use of it you need to compile your kernel 2040 with options ROUTETABLES=2 (or more up to 16). 2041 204220080420: 2043 The 802.11 wireless support was redone to enable multi-bss 2044 operation on devices that are capable. The underlying device 2045 is no longer used directly but instead wlanX devices are 2046 cloned with ifconfig. This requires changes to rc.conf files. 2047 For example, change: 2048 ifconfig_ath0="WPA DHCP" 2049 to 2050 wlans_ath0=wlan0 2051 ifconfig_wlan0="WPA DHCP" 2052 see rc.conf(5) for more details. In addition, mergemaster of 2053 /etc/rc.d is highly recommended. Simultaneous update of userland 2054 and kernel wouldn't hurt either. 2055 2056 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2057 modules were merged into the base wlan module. All references 2058 to these modules (e.g. in kernel config files) must be removed. 2059 206020080408: 2061 psm(4) has gained write(2) support in native operation level. 2062 Arbitrary commands can be written to /dev/psm%d and status can 2063 be read back from it. Therefore, an application is responsible 2064 for status validation and error recovery. It is a no-op in 2065 other operation levels. 2066 206720080312: 2068 Support for KSE threading has been removed from the kernel. To 2069 run legacy applications linked against KSE libmap.conf may 2070 be used. The following libmap.conf may be used to ensure 2071 compatibility with any prior release: 2072 2073 libpthread.so.1 libthr.so.1 2074 libpthread.so.2 libthr.so.2 2075 libkse.so.3 libthr.so.3 2076 207720080301: 2078 The layout of struct vmspace has changed. This affects libkvm 2079 and any executables that link against libkvm and use the 2080 kvm_getprocs() function. In particular, but not exclusively, 2081 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2082 The effects are minimal, but it's advisable to upgrade world 2083 nonetheless. 2084 208520080229: 2086 The latest em driver no longer has support in it for the 2087 82575 adapter, this is now moved to the igb driver. The 2088 split was done to make new features that are incompatible 2089 with older hardware easier to do. 2090 209120080220: 2092 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2093 likewise the kernel option is now GEOM_LINUX_LVM. 2094 209520080211: 2096 The default NFS mount mode has changed from UDP to TCP for 2097 increased reliability. If you rely on (insecurely) NFS 2098 mounting across a firewall you may need to update your 2099 firewall rules. 2100 210120080208: 2102 Belatedly note the addition of m_collapse for compacting 2103 mbuf chains. 2104 210520080126: 2106 The fts(3) structures have been changed to use adequate 2107 integer types for their members and so to be able to cope 2108 with huge file trees. The old fts(3) ABI is preserved 2109 through symbol versioning in libc, so third-party binaries 2110 using fts(3) should still work, although they will not take 2111 advantage of the extended types. At the same time, some 2112 third-party software might fail to build after this change 2113 due to unportable assumptions made in its source code about 2114 fts(3) structure members. Such software should be fixed 2115 by its vendor or, in the worst case, in the ports tree. 2116 FreeBSD_version 800015 marks this change for the unlikely 2117 case that a portable fix is impossible. 2118 211920080123: 2120 To upgrade to -current after this date, you must be running 2121 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2122 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2123 212420071128: 2125 The ADAPTIVE_GIANT kernel option has been retired because its 2126 functionality is the default now. 2127 212820071118: 2129 The AT keyboard emulation of sunkbd(4) has been turned on 2130 by default. In order to make the special symbols of the Sun 2131 keyboards driven by sunkbd(4) work under X these now have 2132 to be configured the same way as Sun USB keyboards driven 2133 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2134 2135 Option "XkbLayout" "us" 2136 Option "XkbRules" "xorg" 2137 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2138 213920071024: 2140 It has been decided that it is desirable to provide ABI 2141 backwards compatibility to the FreeBSD 4/5/6 versions of the 2142 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2143 broken with the introduction of PCI domain support (see the 2144 20070930 entry). Unfortunately, this required the ABI of 2145 PCIOCGETCONF to be broken again in order to be able to 2146 provide backwards compatibility to the old version of that 2147 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2148 again. As for prominent ports this affects neither pciutils 2149 nor xorg-server this time, the hal port needs to be rebuilt 2150 however. 2151 215220071020: 2153 The misnamed kthread_create() and friends have been renamed 2154 to kproc_create() etc. Many of the callers already 2155 used kproc_start().. 2156 I will return kthread_create() and friends in a while 2157 with implementations that actually create threads, not procs. 2158 Renaming corresponds with version 800002. 2159 216020071010: 2161 RELENG_7 branched. 2162 2163COMMON ITEMS: 2164 2165 General Notes 2166 ------------- 2167 Avoid using make -j when upgrading. While generally safe, there are 2168 sometimes problems using -j to upgrade. If your upgrade fails with 2169 -j, please try again without -j. From time to time in the past there 2170 have been problems using -j with buildworld and/or installworld. This 2171 is especially true when upgrading between "distant" versions (eg one 2172 that cross a major release boundary or several minor releases, or when 2173 several months have passed on the -current branch). 2174 2175 Sometimes, obscure build problems are the result of environment 2176 poisoning. This can happen because the make utility reads its 2177 environment when searching for values for global variables. To run 2178 your build attempts in an "environmental clean room", prefix all make 2179 commands with 'env -i '. See the env(1) manual page for more details. 2180 2181 When upgrading from one major version to another it is generally best 2182 to upgrade to the latest code in the currently installed branch first, 2183 then do an upgrade to the new branch. This is the best-tested upgrade 2184 path, and has the highest probability of being successful. Please try 2185 this approach before reporting problems with a major version upgrade. 2186 2187 When upgrading a live system, having a root shell around before 2188 installing anything can help undo problems. Not having a root shell 2189 around can lead to problems if pam has changed too much from your 2190 starting point to allow continued authentication after the upgrade. 2191 2192 ZFS notes 2193 --------- 2194 When upgrading the boot ZFS pool to a new version, always follow 2195 these two steps: 2196 2197 1.) recompile and reinstall the ZFS boot loader and boot block 2198 (this is part of "make buildworld" and "make installworld") 2199 2200 2.) update the ZFS boot block on your boot drive 2201 2202 The following example updates the ZFS boot block on the first 2203 partition (freebsd-boot) of a GPT partitioned drive ad0: 2204 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2205 2206 Non-boot pools do not need these updates. 2207 2208 To build a kernel 2209 ----------------- 2210 If you are updating from a prior version of FreeBSD (even one just 2211 a few days old), you should follow this procedure. It is the most 2212 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2213 2214 make kernel-toolchain 2215 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2216 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2217 2218 To test a kernel once 2219 --------------------- 2220 If you just want to boot a kernel once (because you are not sure 2221 if it works, or if you want to boot a known bad kernel to provide 2222 debugging information) run 2223 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2224 nextboot -k testkernel 2225 2226 To just build a kernel when you know that it won't mess you up 2227 -------------------------------------------------------------- 2228 This assumes you are already running a CURRENT system. Replace 2229 ${arch} with the architecture of your machine (e.g. "i386", 2230 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2231 2232 cd src/sys/${arch}/conf 2233 config KERNEL_NAME_HERE 2234 cd ../compile/KERNEL_NAME_HERE 2235 make depend 2236 make 2237 make install 2238 2239 If this fails, go to the "To build a kernel" section. 2240 2241 To rebuild everything and install it on the current system. 2242 ----------------------------------------------------------- 2243 # Note: sometimes if you are running current you gotta do more than 2244 # is listed here if you are upgrading from a really old current. 2245 2246 <make sure you have good level 0 dumps> 2247 make buildworld 2248 make kernel KERNCONF=YOUR_KERNEL_HERE 2249 [1] 2250 <reboot in single user> [3] 2251 mergemaster -p [5] 2252 make installworld 2253 mergemaster -i [4] 2254 make delete-old [6] 2255 <reboot> 2256 2257 To cross-install current onto a separate partition 2258 -------------------------------------------------- 2259 # In this approach we use a separate partition to hold 2260 # current's root, 'usr', and 'var' directories. A partition 2261 # holding "/", "/usr" and "/var" should be about 2GB in 2262 # size. 2263 2264 <make sure you have good level 0 dumps> 2265 <boot into -stable> 2266 make buildworld 2267 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2268 <maybe newfs current's root partition> 2269 <mount current's root partition on directory ${CURRENT_ROOT}> 2270 make installworld DESTDIR=${CURRENT_ROOT} 2271 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2272 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2273 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2274 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2275 <reboot into current> 2276 <do a "native" rebuild/install as described in the previous section> 2277 <maybe install compatibility libraries from ports/misc/compat*> 2278 <reboot> 2279 2280 2281 To upgrade in-place from stable to current 2282 ---------------------------------------------- 2283 <make sure you have good level 0 dumps> 2284 make buildworld [9] 2285 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2286 [1] 2287 <reboot in single user> [3] 2288 mergemaster -p [5] 2289 make installworld 2290 mergemaster -i [4] 2291 make delete-old [6] 2292 <reboot> 2293 2294 Make sure that you've read the UPDATING file to understand the 2295 tweaks to various things you need. At this point in the life 2296 cycle of current, things change often and you are on your own 2297 to cope. The defaults can also change, so please read ALL of 2298 the UPDATING entries. 2299 2300 Also, if you are tracking -current, you must be subscribed to 2301 freebsd-current@freebsd.org. Make sure that before you update 2302 your sources that you have read and understood all the recent 2303 messages there. If in doubt, please track -stable which has 2304 much fewer pitfalls. 2305 2306 [1] If you have third party modules, such as vmware, you 2307 should disable them at this point so they don't crash your 2308 system on reboot. 2309 2310 [3] From the bootblocks, boot -s, and then do 2311 fsck -p 2312 mount -u / 2313 mount -a 2314 cd src 2315 adjkerntz -i # if CMOS is wall time 2316 Also, when doing a major release upgrade, it is required that 2317 you boot into single user mode to do the installworld. 2318 2319 [4] Note: This step is non-optional. Failure to do this step 2320 can result in a significant reduction in the functionality of the 2321 system. Attempting to do it by hand is not recommended and those 2322 that pursue this avenue should read this file carefully, as well 2323 as the archives of freebsd-current and freebsd-hackers mailing lists 2324 for potential gotchas. The -U option is also useful to consider. 2325 See mergemaster(8) for more information. 2326 2327 [5] Usually this step is a noop. However, from time to time 2328 you may need to do this if you get unknown user in the following 2329 step. It never hurts to do it all the time. You may need to 2330 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2331 install) after the buildworld before this step if you last updated 2332 from current before 20130425 or from -stable before 20130430. 2333 2334 [6] This only deletes old files and directories. Old libraries 2335 can be deleted by "make delete-old-libs", but you have to make 2336 sure that no program is using those libraries anymore. 2337 2338 [8] In order to have a kernel that can run the 4.x binaries needed to 2339 do an installworld, you must include the COMPAT_FREEBSD4 option in 2340 your kernel. Failure to do so may leave you with a system that is 2341 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2342 required to run the 5.x binaries on more recent kernels. And so on 2343 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2344 2345 Make sure that you merge any new devices from GENERIC since the 2346 last time you updated your kernel config file. 2347 2348 [9] When checking out sources, you must include the -P flag to have 2349 cvs prune empty directories. 2350 2351 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2352 "?=" instead of the "=" assignment operator, so that buildworld can 2353 override the CPUTYPE if it needs to. 2354 2355 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2356 not on the command line, or in /etc/make.conf. buildworld will 2357 warn if it is improperly defined. 2358FORMAT: 2359 2360This file contains a list, in reverse chronological order, of major 2361breakages in tracking -current. It is not guaranteed to be a complete 2362list of such breakages, and only contains entries since October 10, 2007. 2363If you need to see UPDATING entries from before that date, you will need 2364to fetch an UPDATING file from an older FreeBSD release. 2365 2366Copyright information: 2367 2368Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2369 2370Redistribution, publication, translation and use, with or without 2371modification, in full or in part, in any form or format of this 2372document are permitted without further permission from the author. 2373 2374THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2375IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2376WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2377DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2378INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2379(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2380SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2381HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2382STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2383IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2384POSSIBILITY OF SUCH DAMAGE. 2385 2386Contact Warner Losh if you have any questions about your use of 2387this document. 2388 2389$FreeBSD: releng/10.1/UPDATING 300085 2016-05-17 22:28:11Z glebius $ 2390