UPDATING revision 311916
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 1920170111 p16 FreeBSD-SA-17:01.openssh 20 21 Fix multiple vulnerabilities of OpenSSH. 22 2320161222 p15 FreeBSD-SA-16:39.ntp 24 25 Fix multiple vulnerabilities of ntp. 26 2720161208 p14 FreeBSD-SA-16:37.libc [revised] 28 29 Fix regressions introduced by SA-16:37.libc. 30 3120161206 p13 FreeBSD-SA-16:36.telnetd 32 FreeBSD-SA-16:37.libc 33 FreeBSD-SA-16:38.bhyve 34 FreeBSD-EN-16:19.tzcode 35 FreeBSD-EN-16:20.tzdata 36 37 Fix possible login(1) argument injection in telnetd(8). [SA-16:36] 38 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37] 39 Fix possible escape from bhyve(8) virtual machine. [SA-16:38] 40 Fix warnings about valid time zone abbreviations. [EN-16:19] 41 Update timezone database information. [EN-16:20] 42 4320161102 p12 FreeBSD-SA-16:33.openssh 44 FreeBSD-SA-16:35.openssl 45 46 Fix OpenSSH remote Denial of Service vulnerability. [SA-16:33] 47 48 Fix OpenSSL remote DoS vulnerability. [SA-16:35] 49 5020161025 p11 FreeBSD-SA-16:15.sysarch [revised] 51 FreeBSD-EN-16:17.vm 52 53 Fix incorrect argument validation in sysarch(2). [SA-16:15] 54 Fix virtual memory subsystem bugs. [EN-16:17] 55 5620161010 p10 FreeBSD-SA-16:29.bspatch 57 FreeBSD-SA-16:30.portsnap 58 FreeBSD-SA-16:31.libarchive 59 60 Fix bspatch heap overflow vulnerability. [SA-16:29] 61 62 Fix multiple portsnap vulnerabilities. [SA-16:30] 63 64 Fix multiple libarchive vulnerabilities. [SA-16:31] 65 6620160926 p9 FreeBSD-SA-16:26.openssl [revised] 67 68 Fix OpenSSL regression introduced in SA-16:26. 69 7020160923 p8 FreeBSD-SA-16:26.openssl 71 72 Fix multiple OpenSSL vulnerabilitites. 73 7420160811 p7 FreeBSD-EN-16:10.dhclient 75 FreeBSD-EN-16:11.vmbus 76 FreeBSD-EN-16:12.hv_storvsc 77 FreeBSD-EN-16:13.vmbus 78 FreeBSD-EN-16:14.hv_storvsc 79 FreeBSD-EN-16:15.vmbus 80 FreeBSD-EN-16:16.hv_storvsc 81 82 Fix handling of unknown options from a DHCP server. [EN-16:10] 83 Fix a panic in hv_vmbus(4). [EN-16:11] 84 Fix missing hotplugged disk in hv_storvsc(4). [EN-16:12] 85 Fix the timecounter emulation in hv_vmbus(4). [EN-16:13] 86 Fix callout(9) handling in hv_storvsc(4). [EN-16:14] 87 Fix memory allocation issues in hv_vmbus(4). [EN-16:15] 88 Fix SCSI command handling in hv_storvsc(4). [EN-16:16] 89 9020160725 p6 FreeBSD-SA-16:25.bspatch 91 FreeBSD-EN-16:09.freebsd-update 92 93 Fix bspatch heap overflow vulnerability. [SA-16:25] 94 95 Fix freebsd-update(8) support of FreeBSD 11.0 release 96 distribution. [EN-16:09] 97 9820160604 p5 FreeBSD-SA-16:24.ntp 99 100 Fix multiple vulnerabilities of ntp. 101 10220160531 p4 FreeBSD-SA-16:20.linux 103 FreeBSD-SA-16:21.43bsd 104 FreeBSD-SA-16:22.libarchive 105 106 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 107 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 108 Fix directory traversal in cpio(1). [SA-16:22] 109 110 11120160517 p3 FreeBSD-SA-16:18.atkbd 112 FreeBSD-SA-16:19.sendmsg 113 114 Fix buffer overflow in keyboard driver. [SA-16:18] 115 116 Fix incorrect argument handling in sendmsg(2). [SA-16:19] 117 11820160504 p2 FreeBSD-SA-16:17.openssl 119 FreeBSD-EN-16:06.libc 120 FreeBSD-EN-16:07.ipi 121 FreeBSD-EN-16:08.zfs 122 123 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 124 125 Fix performance regression in libc hash(3). [EN-16:06] 126 127 Fix excessive latency in x86 IPI delivery. [EN-16:07] 128 129 Fix memory leak in ZFS. [EN-16:08] 130 13120160429 p1 FreeBSD-SA-16:16.ntp 132 133 Fix multiple vulnerabilities of ntp. 134 13520160329: 136 10.3-RELEASE. 137 13820160124: 139 The NONE and HPN patches has been removed from OpenSSH. They are 140 still available in the security/openssh-portable port. 141 14220151214: 143 r292223 changed the internal interface between the nfsd.ko and 144 nfscommon.ko modules. As such, they must both be upgraded to-gether. 145 __FreeBSD_version has been bumped because of this. 146 14720151113: 148 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 149 Kernel modules isp_2400_multi and isp_2500_multi were removed and 150 should be replaced with isp_2400 and isp_2500 modules respectively. 151 15220150806: 153 The menu.rc and loader.rc files will now be replaced during 154 upgrades. Please migrate local changes to menu.rc.local and 155 loader.rc.local instead. 156 15720151026: 158 NTP has been upgraded to 4.2.8p4. 159 16020151025: 161 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 162 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 163 and devel/kyua to version 0.20+ and adjust any calling code to work 164 with Kyuafile and kyua. 165 16620150823: 167 The polarity of Pulse Per Second (PPS) capture events with the 168 uart(4) driver has been corrected. Prior to this change the PPS 169 "assert" event corresponded to the trailing edge of a positive PPS 170 pulse and the "clear" event was the leading edge of the next pulse. 171 172 As the width of a PPS pulse in a typical GPS receiver is on the 173 order of 1 millisecond, most users will not notice any significant 174 difference with this change. 175 176 Anyone who has compensated for the historical polarity reversal by 177 configuring a negative offset equal to the pulse width will need to 178 remove that workaround. 179 18020150822: 181 From legacy ata(4) driver was removed support for SATA controllers 182 supported by more functional drivers ahci(4), siis(4) and mvs(4). 183 Kernel modules ataahci and ataadaptec were removed completely, 184 replaced by ahci and mvs modules respectively. 185 18620150813: 187 10.2-RELEASE. 188 18920150731: 190 As ZFS requires more kernel stack pages than is the default on some 191 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 192 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 193 194 Please consider using 'options KSTACK_PAGES=X' where X is greater 195 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 196 19720150703: 198 The default Unbound configuration now enables remote control 199 using a local socket. Users who have already enabled the 200 local_unbound service should regenerate their configuration 201 by running "service local_unbound setup" as root. 202 20320150624: 204 An additional fix for the issue described in the 20150614 sendmail 205 entry below has been been committed in revision 284786. 206 20720150615: 208 The fix for the issue described in the 20150614 sendmail entry 209 below has been been committed in revision 284485. The work 210 around described in that entry is no longer needed unless the 211 default setting is overridden by a confDH_PARAMETERS configuration 212 setting of '5' or pointing to a 512 bit DH parameter file. 213 21420150614: 215 The import of openssl to address the FreeBSD-SA-15:10.openssl 216 security advisory includes a change which rejects handshakes 217 with DH parameters below 768 bits. sendmail releases prior 218 to 8.15.2 (not yet released), defaulted to a 512 bit 219 DH parameter setting for client connections. To work around 220 this interoperability, sendmail can be configured to use a 221 2048 bit DH parameter by: 222 223 1. Edit /etc/mail/`hostname`.mc 224 2. If a setting for confDH_PARAMETERS does not exist or 225 exists and is set to a string beginning with '5', 226 replace it with '2'. 227 3. If a setting for confDH_PARAMETERS exists and is set to 228 a file path, create a new file with: 229 openssl dhparam -out /path/to/file 2048 230 4. Rebuild the .cf file: 231 cd /etc/mail/; make; make install 232 5. Restart sendmail: 233 cd /etc/mail/; make restart 234 235 A sendmail patch is coming, at which time this file will be 236 updated. 237 23820150601: 239 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 240 defined in symlink(7); previously symlinks were silently ignored. 241 24220150430: 243 The const qualifier has been removed from iconv(3) to comply with 244 POSIX. The ports tree is aware of this from r384038 onwards. 245 24620141215: 247 At svn r275807, The default linux compat kernel ABI has been adjusted 248 to 2.6.18 in support of the linux-c6 compat ports infrastructure 249 update. If you wish to continue using the linux-f10 compat ports, 250 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 251 encouraged to update their linux-compat packages to linux-c6 during 252 their next update cycle. 253 254 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 255 25620141205: 257 pjdfstest has been integrated into kyua as an opt-in test suite. 258 Please see share/doc/pjdfstest/README for a more details on how to 259 execute it. 260 26120141118: 262 10.1-RELEASE. 263 26420140904: 265 The ofwfb driver, used to provide a graphics console on PowerPC when 266 using vt(4), no longer allows mmap() of all of physical memory. This 267 will prevent Xorg on PowerPC with some ATI graphics cards from 268 initializing properly unless x11-servers/xorg-server is updated to 269 1.12.4_8 or newer. 270 27120140831: 272 The libatf-c and libatf-c++ major versions were downgraded to 0 and 273 1 respectively to match the upstream numbers. They were out of 274 sync because, when they were originally added to FreeBSD, the 275 upstream versions were not respected. These libraries are private 276 and not yet built by default, so renumbering them should be a 277 non-issue. However, unclean source trees will yield broken test 278 programs once the operator executes "make delete-old-libs" after a 279 "make installworld". 280 281 Additionally, the atf-sh binary was made private by moving it into 282 /usr/libexec/. Already-built shell test programs will keep the 283 path to the old binary so they will break after "make delete-old" 284 is run. 285 286 If you are using WITH_TESTS=yes (not the default), wipe the object 287 tree and rebuild from scratch to prevent spurious test failures. 288 This is only needed once: the misnumbered libraries and misplaced 289 binaries have been added to OptionalObsoleteFiles.inc so they will 290 be removed during a clean upgrade. 291 29220140814: 293 The ixgbe tunables now match their sysctl counterparts, for example: 294 hw.ixgbe.enable_aim => hw.ix.enable_aim 295 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 296 29720140801: 298 The NFSv4.1 server committed by r269398 changes the internal 299 function call interfaces used between the NFS and krpc modules. 300 As such, __FreeBSD_version was bumped. 301 30220140729: 303 The default unbound configuration has been modified to address 304 issues with reverse lookups on networks that use private 305 address ranges. If you use the local_unbound service, run 306 "service local_unbound setup" as root to regenerate your 307 configuration, then "service local_unbound reload" to load the 308 new configuration. 309 31020140717: 311 It is no longer necessary to include the dwarf version in your DEBUG 312 options in your kernel config file. The bug that required it to be 313 placed in the config file has bene fixed. DEBUG should now just 314 contain -g. The build system will automatically update things 315 to do the right thing. 316 31720140715: 318 Several ABI breaking changes were merged to CTL and new iSCSI code. 319 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 320 iscsictl need to be rebuilt to work with a new kernel. 321 32220140708: 323 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 324 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 325 which differs from the behaviour controlled by this knob.) 326 32720140608: 328 On i386 and amd64 systems, the onifconsole flag is now set by default 329 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 330 as a login TTY if it is set in the bootloader as an active kernel 331 console. No changes in behavior should result otherwise. To revert to 332 the previous behavior, set ttyu0 to "off" in /etc/ttys. 333 33420140512: 335 Clang and llvm have been upgraded to 3.4.1 release. 336 33720140321: 338 Clang and llvm have been upgraded to 3.4 release. 339 34020140306: 341 If a Makefile in a tests/ directory was auto-generating a Kyuafile 342 instead of providing an explicit one, this would prevent such 343 Makefile from providing its own Kyuafile in the future during 344 NO_CLEAN builds. This has been fixed in the Makefiles but manual 345 intervention is needed to clean an objdir if you use NO_CLEAN: 346 # find /usr/obj -name Kyuafile | xargs rm -f 347 34820140303: 349 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 350 capability mode support. Please note that enabling the feature in 351 kernel is still highly recommended. 352 35320140227: 354 OpenSSH is now built with sandbox support, and will use sandbox as 355 the default privilege separation method. This requires Capsicum 356 capability mode support in kernel. 357 35820140216: 359 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 360 been deprecated and will not be part of FreeBSD 11.0 and later 361 releases. If you use this driver, please consider switching to 362 the nfe(4) driver instead. 363 36420140120: 365 10.0-RELEASE. 366 36720131216: 368 The behavior of gss_pseudo_random() for the krb5 mechanism 369 has changed, for applications requesting a longer random string 370 than produced by the underlying enctype's pseudo-random() function. 371 In particular, the random string produced from a session key of 372 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 373 be different at the 17th octet and later, after this change. 374 The counter used in the PRF+ construction is now encoded as a 375 big-endian integer in accordance with RFC 4402. 376 __FreeBSD_version is bumped to 1000701. 377 37820131108: 379 The WITHOUT_ATF build knob has been removed and its functionality 380 has been subsumed into the more generic WITHOUT_TESTS. If you were 381 using the former to disable the build of the ATF libraries, you 382 should change your settings to use the latter. 383 38420131031: 385 The default version of mtree is nmtree which is obtained from 386 NetBSD. The output is generally the same, but may vary 387 slightly. If you found you need identical output adding 388 "-F freebsd9" to the command line should do the trick. For the 389 time being, the old mtree is available as fmtree. 390 39120131014: 392 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 393 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 394 1.1.4_8 and verify bsdyml not linked in, before running "make 395 delete-old-libs": 396 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 397 or 398 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 399 40020131010: 401 The rc.d/jail script has been updated to support jail(8) 402 configuration file. The "jail_<jname>_*" rc.conf(5) variables 403 for per-jail configuration are automatically converted to 404 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 405 This is transparently backward compatible. See below about some 406 incompatibilities and rc.conf(5) manual page for more details. 407 408 These variables are now deprecated in favor of jail(8) configuration 409 file. One can use "rc.d/jail config <jname>" command to generate 410 a jail(8) configuration file in /var/run/jail.<jname>.conf without 411 running the jail(8) utility. The default pathname of the 412 configuration file is /etc/jail.conf and can be specified by 413 using $jail_conf or $jail_<jname>_conf variables. 414 415 Please note that jail_devfs_ruleset accepts an integer at 416 this moment. Please consider to rewrite the ruleset name 417 with an integer. 418 41920130930: 420 BIND has been removed from the base system. If all you need 421 is a local resolver, simply enable and start the local_unbound 422 service instead. Otherwise, several versions of BIND are 423 available in the ports tree. The dns/bind99 port is one example. 424 425 With this change, nslookup(1) and dig(1) are no longer in the base 426 system. Users should instead use host(1) and drill(1) which are 427 in the base system. Alternatively, nslookup and dig can 428 be obtained by installing the dns/bind-tools port. 429 43020130916: 431 With the addition of unbound(8), a new unbound user is now 432 required during installworld. "mergemaster -p" can be used to 433 add the user prior to installworld, as documented in the handbook. 434 43520130911: 436 OpenSSH is now built with DNSSEC support, and will by default 437 silently trust signed SSHFP records. This can be controlled with 438 the VerifyHostKeyDNS client configuration setting. DNSSEC support 439 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 440 44120130906: 442 The GNU Compiler Collection and C++ standard library (libstdc++) 443 are no longer built by default on platforms where clang is the system 444 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 445 options in src.conf. 446 44720130905: 448 The PROCDESC kernel option is now part of the GENERIC kernel 449 configuration and is required for the rwhod(8) to work. 450 If you are using custom kernel configuration, you should include 451 'options PROCDESC'. 452 45320130905: 454 The API and ABI related to the Capsicum framework was modified 455 in backward incompatible way. The userland libraries and programs 456 have to be recompiled to work with the new kernel. This includes the 457 following libraries and programs, but the whole buildworld is 458 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 459 kdump, procstat, rwho, rwhod, uniq. 460 46120130903: 462 AES-NI intrinsic support has been added to gcc. The AES-NI module 463 has been updated to use this support. A new gcc is required to build 464 the aesni module on both i386 and amd64. 465 46620130821: 467 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 468 Thus "device padlock_rng" and "device rdrand_rng" should be 469 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 470 47120130813: 472 WITH_ICONV has been split into two feature sets. WITH_ICONV now 473 enables just the iconv* functionality and is now on by default. 474 WITH_LIBICONV_COMPAT enables the libiconv api and link time 475 compatability. Set WITHOUT_ICONV to build the old way. 476 If you have been using WITH_ICONV before, you will very likely 477 need to turn on WITH_LIBICONV_COMPAT. 478 47920130806: 480 INVARIANTS option now enables DEBUG for code with OpenSolaris and 481 Illumos origin, including ZFS. If you have INVARIANTS in your 482 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 483 explicitly. 484 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 485 locks if WITNESS option was set. Because that generated a lot of 486 witness(9) reports and all of them were believed to be false 487 positives, this is no longer done. New option OPENSOLARIS_WITNESS 488 can be used to achieve the previous behavior. 489 49020130806: 491 Timer values in IPv6 data structures now use time_uptime instead 492 of time_second. Although this is not a user-visible functional 493 change, userland utilities which directly use them---ndp(8), 494 rtadvd(8), and rtsold(8) in the base system---need to be updated 495 to r253970 or later. 496 49720130802: 498 find -delete can now delete the pathnames given as arguments, 499 instead of only files found below them or if the pathname did 500 not contain any slashes. Formerly, the following error message 501 would result: 502 503 find: -delete: <path>: relative path potentially not safe 504 505 Deleting the pathnames given as arguments can be prevented 506 without error messages using -mindepth 1 or by changing 507 directory and passing "." as argument to find. This works in the 508 old as well as the new version of find. 509 51020130726: 511 Behavior of devfs rules path matching has been changed. 512 Pattern is now always matched against fully qualified devfs 513 path and slash characters must be explicitly matched by 514 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 515 subdirectories must be reviewed. 516 51720130716: 518 The default ARM ABI has changed to the ARM EABI. The old ABI is 519 incompatible with the ARM EABI and all programs and modules will 520 need to be rebuilt to work with a new kernel. 521 522 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 523 524 NOTE: Support for the old ABI will be removed in the future and 525 users are advised to upgrade. 526 52720130709: 528 pkg_install has been disconnected from the build if you really need it 529 you should add WITH_PKGTOOLS in your src.conf(5). 530 53120130709: 532 Most of network statistics structures were changed to be able 533 keep 64-bits counters. Thus all tools, that work with networking 534 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 535 53620130618: 537 Fix a bug that allowed a tracing process (e.g. gdb) to write 538 to a memory-mapped file in the traced process's address space 539 even if neither the traced process nor the tracing process had 540 write access to that file. 541 54220130615: 543 CVS has been removed from the base system. An exact copy 544 of the code is available from the devel/cvs port. 545 54620130613: 547 Some people report the following error after the switch to bmake: 548 549 make: illegal option -- J 550 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 551 ... 552 *** [buildworld] Error code 2 553 554 this likely due to an old instance of make in 555 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 556 which src/Makefile will use that blindly, if it exists, so if 557 you see the above error: 558 559 rm -rf `make -V MAKEPATH` 560 561 should resolve it. 562 56320130516: 564 Use bmake by default. 565 Whereas before one could choose to build with bmake via 566 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 567 make. The goal is to remove these knobs for 10-RELEASE. 568 569 It is worth noting that bmake (like gmake) treats the command 570 line as the unit of failure, rather than statements within the 571 command line. Thus '(cd some/where && dosomething)' is safer 572 than 'cd some/where; dosomething'. The '()' allows consistent 573 behavior in parallel build. 574 57520130429: 576 Fix a bug that allows NFS clients to issue READDIR on files. 577 57820130426: 579 The WITHOUT_IDEA option has been removed because 580 the IDEA patent expired. 581 58220130426: 583 The sysctl which controls TRIM support under ZFS has been renamed 584 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 585 enabled by default. 586 58720130425: 588 The mergemaster command now uses the default MAKEOBJDIRPREFIX 589 rather than creating it's own in the temporary directory in 590 order allow access to bootstrapped versions of tools such as 591 install and mtree. When upgrading from version of FreeBSD where 592 the install command does not support -l, you will need to 593 install a new mergemaster command if mergemaster -p is required. 594 This can be accomplished with the command (cd src/usr.sbin/mergemaster 595 && make install). 596 59720130404: 598 Legacy ATA stack, disabled and replaced by new CAM-based one since 599 FreeBSD 9.0, completely removed from the sources. Kernel modules 600 atadisk and atapi*, user-level tools atacontrol and burncd are 601 removed. Kernel option `options ATA_CAM` is now permanently enabled 602 and removed. 603 60420130319: 605 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 606 and socketpair(2). Software, in particular Kerberos, may 607 automatically detect and use these during building. The resulting 608 binaries will not work on older kernels. 609 61020130308: 611 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 612 information, see the respective 20130304 entry). 613 61420130304: 615 Recent commits to callout(9) changed the size of struct callout, 616 so the KBI is probably heavily disturbed. Also, some functions 617 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 618 by macros. Every kernel module using it won't load, so rebuild 619 is requested. 620 621 The ctl device has been re-enabled in GENERIC for i386 and amd64, 622 but does not initialize by default (because of the new CTL_DISABLE 623 option) to save memory. To re-enable it, remove the CTL_DISABLE 624 option from the kernel config file or set kern.cam.ctl.disable=0 625 in /boot/loader.conf. 626 62720130301: 628 The ctl device has been disabled in GENERIC for i386 and amd64. 629 This was done due to the extra memory being allocated at system 630 initialisation time by the ctl driver which was only used if 631 a CAM target device was created. This makes a FreeBSD system 632 unusable on 128MB or less of RAM. 633 63420130208: 635 A new compression method (lz4) has been merged to -HEAD. Please 636 refer to zpool-features(7) for more information. 637 638 Please refer to the "ZFS notes" section of this file for information 639 on upgrading boot ZFS pools. 640 64120130129: 642 A BSD-licensed patch(1) variant has been added and is installed 643 as bsdpatch, being the GNU version the default patch. 644 To inverse the logic and use the BSD-licensed one as default, 645 while having the GNU version installed as gnupatch, rebuild 646 and install world with the WITH_BSD_PATCH knob set. 647 64820130121: 649 Due to the use of the new -l option to install(1) during build 650 and install, you must take care not to directly set the INSTALL 651 make variable in your /etc/make.conf, /etc/src.conf, or on the 652 command line. If you wish to use the -C flag for all installs 653 you may be able to add INSTALL+=-C to /etc/make.conf or 654 /etc/src.conf. 655 65620130118: 657 The install(1) option -M has changed meaning and now takes an 658 argument that is a file or path to append logs to. In the 659 unlikely event that -M was the last option on the command line 660 and the command line contained at least two files and a target 661 directory the first file will have logs appended to it. The -M 662 option served little practical purpose in the last decade so its 663 use is expected to be extremely rare. 664 66520121223: 666 After switching to Clang as the default compiler some users of ZFS 667 on i386 systems started to experience stack overflow kernel panics. 668 Please consider using 'options KSTACK_PAGES=4' in such configurations. 669 67020121222: 671 GEOM_LABEL now mangles label names read from file system metadata. 672 Mangling affect labels containing spaces, non-printable characters, 673 '%' or '"'. Device names in /etc/fstab and other places may need to 674 be updated. 675 67620121217: 677 By default, only the 10 most recent kernel dumps will be saved. To 678 restore the previous behaviour (no limit on the number of kernel dumps 679 stored in the dump directory) add the following line to /etc/rc.conf: 680 681 savecore_flags="" 682 68320121201: 684 With the addition of auditdistd(8), a new auditdistd user is now 685 required during installworld. "mergemaster -p" can be used to 686 add the user prior to installworld, as documented in the handbook. 687 68820121117: 689 The sin6_scope_id member variable in struct sockaddr_in6 is now 690 filled by the kernel before passing the structure to the userland via 691 sysctl or routing socket. This means the KAME-specific embedded scope 692 id in sin6_addr.s6_addr[2] is always cleared in userland application. 693 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 694 __FreeBSD_version is bumped to 1000025. 695 69620121105: 697 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 698 This means that the world and kernel will be compiled with clang 699 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 700 and /usr/bin/cpp. To disable this behavior and revert to building 701 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 702 of current may need to bootstrap WITHOUT_CLANG first if the clang 703 build fails (its compatibility window doesn't extend to the 9 stable 704 branch point). 705 70620121102: 707 The IPFIREWALL_FORWARD kernel option has been removed. Its 708 functionality now turned on by default. 709 71020121023: 711 The ZERO_COPY_SOCKET kernel option has been removed and 712 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 713 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 714 mechanism which is not safe and may result in kernel crashes. 715 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 716 driver supports disposeable external page sized mbuf storage. 717 Proper replacements for both zero-copy mechanisms are under 718 consideration and will eventually lead to complete removal 719 of the two kernel options. 720 72120121023: 722 The IPv4 network stack has been converted to network byte 723 order. The following modules need to be recompiled together 724 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 725 pf(4), ipfw(4), ng_ipfw(4), stf(4). 726 72720121022: 728 Support for non-MPSAFE filesystems was removed from VFS. The 729 VFS_VERSION was bumped, all filesystem modules shall be 730 recompiled. 731 73220121018: 733 All the non-MPSAFE filesystems have been disconnected from 734 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 735 portalfs, smbfs, xfs. 736 73720121016: 738 The interface cloning API and ABI has changed. The following 739 modules need to be recompiled together with kernel: 740 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 741 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 742 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 743 74420121015: 745 The sdhci driver was split in two parts: sdhci (generic SD Host 746 Controller logic) and sdhci_pci (actual hardware driver). 747 No kernel config modifications are required, but if you 748 load sdhc as a module you must switch to sdhci_pci instead. 749 75020121014: 751 Import the FUSE kernel and userland support into base system. 752 75320121013: 754 The GNU sort(1) program has been removed since the BSD-licensed 755 sort(1) has been the default for quite some time and no serious 756 problems have been reported. The corresponding WITH_GNU_SORT 757 knob has also gone. 758 75920121006: 760 The pfil(9) API/ABI for AF_INET family has been changed. Packet 761 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 762 with new kernel. 763 76420121001: 765 The net80211(4) ABI has been changed to allow for improved driver 766 PS-POLL and power-save support. All wireless drivers need to be 767 recompiled to work with the new kernel. 768 76920120913: 770 The random(4) support for the VIA hardware random number 771 generator (`PADLOCK') is no longer enabled unconditionally. 772 Add the padlock_rng device in the custom kernel config if 773 needed. The GENERIC kernels on i386 and amd64 do include the 774 device, so the change only affects the custom kernel 775 configurations. 776 77720120908: 778 The pf(4) packet filter ABI has been changed. pfctl(8) and 779 snmp_pf module need to be recompiled to work with new kernel. 780 78120120828: 782 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 783 to -HEAD. Pools that have empty_bpobj in active state can not be 784 imported read-write with ZFS implementations that do not support 785 this feature. For more information read the zpool-features(5) 786 manual page. 787 78820120727: 789 The sparc64 ZFS loader has been changed to no longer try to auto- 790 detect ZFS providers based on diskN aliases but now requires these 791 to be explicitly listed in the OFW boot-device environment variable. 792 79320120712: 794 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 795 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 796 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 797 79820120712: 799 The following sysctls and tunables have been renamed for consistency 800 with other variables: 801 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 802 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 803 80420120628: 805 The sort utility has been replaced with BSD sort. For now, GNU sort 806 is also available as "gnusort" or the default can be set back to 807 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 808 installed as "bsdsort". 809 81020120611: 811 A new version of ZFS (pool version 5000) has been merged to -HEAD. 812 Starting with this version the old system of ZFS pool versioning 813 is superseded by "feature flags". This concept enables forward 814 compatibility against certain future changes in functionality of ZFS 815 pools. The first read-only compatible "feature flag" for ZFS pools 816 is named "com.delphix:async_destroy". For more information 817 read the new zpool-features(5) manual page. 818 Please refer to the "ZFS notes" section of this file for information 819 on upgrading boot ZFS pools. 820 82120120417: 822 The malloc(3) implementation embedded in libc now uses sources imported 823 as contrib/jemalloc. The most disruptive API change is to 824 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 825 delete it prior to installworld, and optionally re-create it using the 826 new format after rebooting. See malloc.conf(5) for details 827 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 828 NAMESPACE section). 829 83020120328: 831 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 832 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 833 now spelled mips. This is to aid compatibility with third-party 834 software that expects this naming scheme in uname(3). Little-endian 835 settings are unchanged. If you are updating a big-endian mips64 machine 836 from before this change, you may need to set MACHINE_ARCH=mips64 in 837 your environment before the new build system will recognize your machine. 838 83920120306: 840 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 841 platforms. 842 84320120229: 844 Now unix domain sockets behave "as expected" on nullfs(5). Previously 845 nullfs(5) did not pass through all behaviours to the underlying layer, 846 as a result if we bound to a socket on the lower layer we could connect 847 only to the lower path; if we bound to the upper layer we could connect 848 only to the upper path. The new behavior is one can connect to both the 849 lower and the upper paths regardless what layer path one binds to. 850 85120120211: 852 The getifaddrs upgrade path broken with 20111215 has been restored. 853 If you have upgraded in between 20111215 and 20120209 you need to 854 recompile libc again with your kernel. You still need to recompile 855 world to be able to configure CARP but this restriction already 856 comes from 20111215. 857 85820120114: 859 The set_rcvar() function has been removed from /etc/rc.subr. All 860 base and ports rc.d scripts have been updated, so if you have a 861 port installed with a script in /usr/local/etc/rc.d you can either 862 hand-edit the rcvar= line, or reinstall the port. 863 864 An easy way to handle the mass-update of /etc/rc.d: 865 rm /etc/rc.d/* && mergemaster -i 866 86720120109: 868 panic(9) now stops other CPUs in the SMP systems, disables interrupts 869 on the current CPU and prevents other threads from running. 870 This behavior can be reverted using the kern.stop_scheduler_on_panic 871 tunable/sysctl. 872 The new behavior can be incompatible with kern.sync_on_panic. 873 87420111215: 875 The carp(4) facility has been changed significantly. Configuration 876 of the CARP protocol via ifconfig(8) has changed, as well as format 877 of CARP events submitted to devd(8) has changed. See manual pages 878 for more information. The arpbalance feature of carp(4) is currently 879 not supported anymore. 880 881 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 882 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 883 need to be recompiled. 884 88520111122: 886 The acpi_wmi(4) status device /dev/wmistat has been renamed to 887 /dev/wmistat0. 888 88920111108: 890 The option VFS_ALLOW_NONMPSAFE option has been added in order to 891 explicitely support non-MPSAFE filesystems. 892 It is on by default for all supported platform at this present 893 time. 894 89520111101: 896 The broken amd(4) driver has been replaced with esp(4) in the amd64, 897 i386 and pc98 GENERIC kernel configuration files. 898 89920110930: 900 sysinstall has been removed 901 90220110923: 903 The stable/9 branch created in subversion. This corresponds to the 904 RELENG_9 branch in CVS. 905 90620110913: 907 This commit modifies vfs_register() so that it uses a hash 908 calculation to set vfc_typenum, which is enabled by default. 909 The first time a system is booted after this change, the 910 vfc_typenum values will change for all file systems. The 911 main effect of this is a change to the NFS server file handles 912 for file systems that use vfc_typenum in their fsid, such as ZFS. 913 It will, however, prevent vfc_typenum from changing when file 914 systems are loaded in a different order for subsequent reboots. 915 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 916 until you are ready to remount all NFS clients after a reboot. 917 91820110828: 919 Bump the shared library version numbers for libraries that 920 do not use symbol versioning, have changed the ABI compared 921 to stable/8 and which shared library version was not bumped. 922 Done as part of 9.0-RELEASE cycle. 923 92420110815: 925 During the merge of Capsicum features, the fget(9) KPI was modified. 926 This may require the rebuilding of out-of-tree device drivers -- 927 issues have been reported specifically with the nVidia device driver. 928 __FreeBSD_version is bumped to 900041. 929 930 Also, there is a period between 20110811 and 20110814 where the 931 special devices /dev/{stdin,stdout,stderr} did not work correctly. 932 Building world from a kernel during that window may not work. 933 93420110628: 935 The packet filter (pf) code has been updated to OpenBSD 4.5. 936 You need to update userland tools to be in sync with kernel. 937 This update breaks backward compatibility with earlier pfsync(4) 938 versions. Care must be taken when updating redundant firewall setups. 939 94020110608: 941 The following sysctls and tunables are retired on x86 platforms: 942 machdep.hlt_cpus 943 machdep.hlt_logical_cpus 944 The following sysctl is retired: 945 machdep.hyperthreading_allowed 946 The sysctls were supposed to provide a way to dynamically offline and 947 online selected CPUs on x86 platforms, but the implementation has not 948 been reliable especially with SCHED_ULE scheduler. 949 machdep.hyperthreading_allowed tunable is still available to ignore 950 hyperthreading CPUs at OS level. 951 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 952 where X is an APIC ID of a CPU. Be advised, though, that disabling 953 CPUs in non-uniform fashion will result in non-uniform topology and 954 may lead to sub-optimal system performance with SCHED_ULE, which is 955 a default scheduler. 956 95720110607: 958 cpumask_t type is retired and cpuset_t is used in order to describe 959 a mask of CPUs. 960 96120110531: 962 Changes to ifconfig(8) for dynamic address family detection mandate 963 that you are running a kernel of 20110525 or later. Make sure to 964 follow the update procedure to boot a new kernel before installing 965 world. 966 96720110513: 968 Support for sun4v architecture is officially dropped 969 97020110503: 971 Several KPI breaking changes have been committed to the mii(4) layer, 972 the PHY drivers and consequently some Ethernet drivers using mii(4). 973 This means that miibus.ko and the modules of the affected Ethernet 974 drivers need to be recompiled. 975 976 Note to kernel developers: Given that the OUI bit reversion problem 977 was fixed as part of these changes all mii(4) commits related to OUIs, 978 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 979 handling, no longer can be merged verbatim to stable/8 and previous 980 branches. 981 98220110430: 983 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 984 into their kernel configurations along with 'device pci'. 985 98620110427: 987 The default NFS client is now the new NFS client, so fstype "newnfs" 988 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 989 Although mounts via fstype "nfs" will usually work without userland 990 changes, it is recommended that the mount(8) and mount_nfs(8) 991 commands be rebuilt from sources and that a link to mount_nfs called 992 mount_oldnfs be created. The new client is compiled into the 993 kernel with "options NFSCL" and this is needed for diskless root 994 file systems. The GENERIC kernel configs have been changed to use 995 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 996 To use the regular/old client, you can "mount -t oldnfs ...". For 997 a diskless root file system, you must also include a line like: 998 999 vfs.root.mountfrom="oldnfs:" 1000 1001 in the boot/loader.conf on the root fs on the NFS server to make 1002 a diskless root fs use the old client. 1003 100420110424: 1005 The GENERIC kernels for all architectures now default to the new 1006 CAM-based ATA stack. It means that all legacy ATA drivers were 1007 removed and replaced by respective CAM drivers. If you are using 1008 ATA device names in /etc/fstab or other places, make sure to update 1009 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 1010 where 'Y's are the sequential numbers starting from zero for each type 1011 in order of detection, unless configured otherwise with tunables, 1012 see cam(4)). There will be symbolic links created in /dev/ to map 1013 old adX devices to the respective adaY. They should provide basic 1014 compatibility for file systems mounting in most cases, but they do 1015 not support old user-level APIs and do not have respective providers 1016 in GEOM. Consider using updated management tools with new device names. 1017 1018 It is possible to load devices ahci, ata, siis and mvs as modules, 1019 but option ATA_CAM should remain in kernel configuration to make ata 1020 module work as CAM driver supporting legacy ATA controllers. Device ata 1021 still can be used in modular fashion (atacore + ...). Modules atadisk 1022 and atapi* are not used and won't affect operation in ATA_CAM mode. 1023 Note that to use CAM-based ATA kernel should include CAM devices 1024 scbus, pass, da (or explicitly ada), cd and optionally others. All of 1025 them are parts of the cam module. 1026 1027 ataraid(4) functionality is now supported by the RAID GEOM class. 1028 To use it you can load geom_raid kernel module and use graid(8) tool 1029 for management. Instead of /dev/arX device names, use /dev/raid/rX. 1030 1031 No kernel config options or code have been removed, so if a problem 1032 arises, please report it and optionally revert to the old ATA stack. 1033 In order to do it you can remove from the kernel config: 1034 options ATA_CAM 1035 device ahci 1036 device mvs 1037 device siis 1038 , and instead add back: 1039 device atadisk # ATA disk drives 1040 device ataraid # ATA RAID drives 1041 device atapicd # ATAPI CDROM drives 1042 device atapifd # ATAPI floppy drives 1043 device atapist # ATAPI tape drives 1044 104520110423: 1046 The default NFS server has been changed to the new server, which 1047 was referred to as the experimental server. If you need to switch 1048 back to the old NFS server, you must now put the "-o" option on 1049 both the mountd and nfsd commands. This can be done using the 1050 mountd_flags and nfs_server_flags rc.conf variables until an 1051 update to the rc scripts is committed, which is coming soon. 1052 105320110418: 1054 The GNU Objective-C runtime library (libobjc), and other Objective-C 1055 related components have been removed from the base system. If you 1056 require an Objective-C library, please use one of the available ports. 1057 105820110331: 1059 ath(4) has been split into bus- and device- modules. if_ath contains 1060 the HAL, the TX rate control and the network device code. if_ath_pci 1061 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 1062 contains the AHB glue. Users need to load both if_ath_pci and if_ath 1063 in order to use ath on everything else. 1064 1065 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 1066 need to load if_ath and if_ath_pci for ath(4) operation. 1067 106820110314: 1069 As part of the replacement of sysinstall, the process of building 1070 release media has changed significantly. For details, please re-read 1071 release(7), which has been updated to reflect the new build process. 1072 107320110218: 1074 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1075 is the last available version under GPLv2. It brings a number of new 1076 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1077 4.1 and SSE 4.2), better support for powerpc64, a number of new 1078 directives, and lots of other small improvements. See the ChangeLog 1079 file in contrib/binutils for the full details. 1080 108120110218: 1082 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1083 compliant, and will now use half of hash for authentication. 1084 This will break interoperability with all stacks (including all 1085 actual FreeBSD versions) who implement 1086 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1087 authentication). 1088 The only workaround with such peers is to use another HMAC 1089 algorithm for IPsec ("phase 2") authentication. 1090 109120110207: 1092 Remove the uio_yield prototype and symbol. This function has 1093 been misnamed since it was introduced and should not be 1094 globally exposed with this name. The equivalent functionality 1095 is now available using kern_yield(curthread->td_user_pri). 1096 The function remains undocumented. 1097 109820110112: 1099 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1100 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1101 for scalar sysctls is defined but disabled. Code that needs 1102 UQUAD to pass the type checking that must compile on older 1103 systems where the define is not present can check against 1104 __FreeBSD_version >= 900030. 1105 1106 The system dialog(1) has been replaced with a new version previously 1107 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1108 with the previous version, but the libdialog associated with it has 1109 a largely incompatible API. As such, the original version of libdialog 1110 will be kept temporarily as libodialog, until its base system consumers 1111 are replaced or updated. Bump __FreeBSD_version to 900030. 1112 111320110103: 1114 If you are trying to run make universe on a -stable system, and you get 1115 the following warning: 1116 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1117 unknown. config(8) likely too old." 1118 or something similar to it, then you must upgrade your -stable system 1119 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1120 stable/8) or build the config from the latest stable/8 branch and 1121 install it on your system. 1122 1123 Prior to this date, building a current universe on 8-stable system from 1124 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1125 error in the first kernel build phase. A new config on those old 1126 systems will fix that problem for older versions of -current. 1127 112820101228: 1129 The TCP stack has been modified to allow Khelp modules to interact with 1130 it via helper hook points and store per-connection data in the TCP 1131 control block. Bump __FreeBSD_version to 900029. User space tools that 1132 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1133 be recompiled. 1134 113520101114: 1136 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1137 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1138 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1139 to take advantage of it instead of using custom implementations. This 1140 means that these drivers now no longer unconditionally advertise 1141 support for flow control but only do so if flow control is a selected 1142 media option. This was implemented in the generic support that way in 1143 order to allow flow control to be switched on and off via ifconfig(8) 1144 with the PHY specific default to typically off in order to protect 1145 from unwanted effects. Consequently, if you used flow control with 1146 one of the above mentioned drivers you now need to explicitly enable 1147 it, for example via: 1148 ifconfig bge0 media auto mediaopt flowcontrol 1149 1150 Along with the above mentioned changes generic support for setting 1151 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1152 e1000phy(4) as well as ip1000phy(4) have been converted to take 1153 advantage of it. This means that these drivers now no longer take the 1154 link0 parameter for selecting master mode but the master media option 1155 has to be used instead, for example like in the following: 1156 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1157 1158 Selection of master mode now is also available with all other PHY 1159 drivers supporting 1000baseT. 1160 116120101111: 1162 The TCP stack has received a significant update to add support for 1163 modularised congestion control and generally improve the clarity of 1164 congestion control decisions. Bump __FreeBSD_version to 900025. User 1165 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1166 sockstat) need to be recompiled. 1167 116820101002: 1169 The man(1) utility has been replaced by a new version that no longer 1170 uses /etc/manpath.config. Please consult man.conf(5) for how to 1171 migrate local entries to the new format. 1172 117320100928: 1174 The copyright strings printed by login(1) and sshd(8) at the time of a 1175 new connection have been removed to follow other operating systems and 1176 upstream sshd. 1177 117820100915: 1179 A workaround for a fixed ld bug has been removed in kernel code, 1180 so make sure that your system ld is built from sources after 1181 revision 210245 from 2010-07-19 (r211583 if building head kernel 1182 on stable/8, r211584 for stable/7; both from 2010-08-21). 1183 A symptom of incorrect ld version is different addresses for 1184 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1185 118620100913: 1187 The $ipv6_prefer variable in rc.conf(5) has been split into 1188 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1189 1190 The $ip6addrctl_policy is a variable to choose a pre-defined 1191 address selection policy set by ip6addrctl(8). A value 1192 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1193 default is "AUTO". 1194 1195 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1196 flag (see an entry of 20090926) is set on an interface with no 1197 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1198 security reason. If you want IPv6 link-local address on all 1199 interfaces by default, set this to "YES". 1200 1201 The old ipv6_prefer="YES" is equivalent to 1202 ipv6_activate_all_interfaces="YES" and 1203 ip6addrctl_policy="ipv6_prefer". 1204 120520100913: 1206 DTrace has grown support for userland tracing. Due to this, DTrace is 1207 now i386 and amd64 only. 1208 dtruss(1) is now installed by default on those systems and a new 1209 kernel module is needed for userland tracing: fasttrap. 1210 No changes to your kernel config file are necessary to enable 1211 userland tracing, but you might consider adding 'STRIP=' and 1212 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1213 to have informative userland stack traces in DTrace (ustack). 1214 121520100725: 1216 The acpi_aiboost(4) driver has been removed in favor of the new 1217 aibs(4) driver. You should update your kernel configuration file. 1218 121920100722: 1220 BSD grep has been imported to the base system and it is built by 1221 default. It is completely BSD licensed, highly GNU-compatible, uses 1222 less memory than its GNU counterpart and has a small codebase. 1223 However, it is slower than its GNU counterpart, which is mostly 1224 noticeable for larger searches, for smaller ones it is measurable 1225 but not significant. The reason is complex, the most important factor 1226 is that we lack a modern and efficient regex library and GNU 1227 overcomes this by optimizing the searches internally. Future work 1228 on improving the regex performance is planned, for the meantime, 1229 users that need better performance, can build GNU grep instead by 1230 setting the WITH_GNU_GREP knob. 1231 123220100713: 1233 Due to the import of powerpc64 support, all existing powerpc kernel 1234 configuration files must be updated with a machine directive like this: 1235 machine powerpc powerpc 1236 1237 In addition, an updated config(8) is required to build powerpc kernels 1238 after this change. 1239 124020100713: 1241 A new version of ZFS (version 15) has been merged to -HEAD. 1242 This version uses a python library for the following subcommands: 1243 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1244 For full functionality of these commands the following port must 1245 be installed: sysutils/py-zfs 1246 124720100429: 1248 'vm_page's are now hashed by physical address to an array of mutexes. 1249 Currently this is only used to serialize access to hold_count. Over 1250 time the page queue mutex will be peeled away. This changes the size 1251 of pmap on every architecture. And requires all callers of vm_page_hold 1252 and vm_page_unhold to be updated. 1253 125420100402: 1255 WITH_CTF can now be specified in src.conf (not recommended, there 1256 are some problems with static executables), make.conf (would also 1257 affect ports which do not use GNU make and do not override the 1258 compile targets) or in the kernel config (via "makeoptions 1259 WITH_CTF=yes"). 1260 When WITH_CTF was specified there before this was silently ignored, 1261 so make sure that WITH_CTF is not used in places which could lead 1262 to unwanted behavior. 1263 126420100311: 1265 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1266 to allow 32-bit compatibility on non-x86 platforms. All kernel 1267 configurations on amd64 and ia64 platforms using these options must 1268 be modified accordingly. 1269 127020100113: 1271 The utmp user accounting database has been replaced with utmpx, 1272 the user accounting interface standardized by POSIX. 1273 Unfortunately the semantics of utmp and utmpx don't match, 1274 making it practically impossible to support both interfaces. 1275 The user accounting database is used by tools like finger(1), 1276 last(1), talk(1), w(1) and ac(8). 1277 1278 All applications in the base system use utmpx. This means only 1279 local binaries (e.g. from the ports tree) may still use these 1280 utmp database files. These applications must be rebuilt to make 1281 use of utmpx. 1282 1283 After the system has been upgraded, it is safe to remove the old 1284 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1285 assuming their contents is of no importance anymore. Old wtmp 1286 databases can only be used by last(1) and ac(8) after they have 1287 been converted to the new format using wtmpcvt(1). 1288 128920100108: 1290 Introduce the kernel thread "deadlock resolver" (which can be enabled 1291 via the DEADLKRES option, see NOTES for more details) and the 1292 sleepq_type() function for sleepqueues. 1293 129420091202: 1295 The rc.firewall and rc.firewall6 were unified, and 1296 rc.firewall6 and rc.d/ip6fw were removed. 1297 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1298 variables are obsoleted. Instead, the following new rc 1299 variables are added to rc.d/ipfw: 1300 1301 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1302 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1303 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1304 1305 The meanings correspond to the relevant IPv4 variables. 1306 130720091125: 1308 8.0-RELEASE. 1309 131020091113: 1311 The default terminal emulation for syscons(4) has been changed 1312 from cons25 to xterm on all platforms except pc98. This means 1313 that the /etc/ttys file needs to be updated to ensure correct 1314 operation of applications on the console. 1315 1316 The terminal emulation style can be toggled per window by using 1317 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1318 options can be used to change the compile-time default back to 1319 cons25. 1320 1321 To prevent graphical artifacts, make sure the TERM environment 1322 variable is set to match the terminal emulation that is being 1323 performed by syscons(4). 1324 132520091109: 1326 The layout of the structure ieee80211req_scan_result has changed. 1327 Applications that require wireless scan results (e.g. ifconfig(8)) 1328 from net80211 need to be recompiled. 1329 1330 Applications such as wpa_supplicant(8) may require a full world 1331 build without using NO_CLEAN in order to get synchronized with the 1332 new structure. 1333 133420091025: 1335 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1336 There's one kernel module for each firmware. Adding "device iwnfw" 1337 to the kernel configuration file means including all three firmware 1338 images inside the kernel. If you want to include just the one for 1339 your wireless card, use the devices iwn4965fw, iwn5000fw or 1340 iwn5150fw. 1341 134220090926: 1343 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1344 into rc.d/netif. The changes are the following: 1345 1346 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1347 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1348 Note that both variables need the "inet6" keyword at the head. 1349 1350 Do not set $ipv6_network_interfaces manually if you do not 1351 understand what you are doing. It is not needed in most cases. 1352 1353 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1354 they are obsolete. 1355 1356 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1357 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1358 1359 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1360 all configured interfaces have "inet6 accept_rtadv" in the 1361 $ifconfig_IF_ipv6. These are for backward compatibility. 1362 1363 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1364 functionality of interfaces with no corresponding 1365 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1366 and the default address selection policy of ip6addrctl(8) 1367 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1368 Note that if you want to configure IPv6 functionality on the 1369 disabled interfaces after boot, first you need to clear the flag by 1370 using ifconfig(8) like: 1371 1372 ifconfig em0 inet6 -ifdisabled 1373 1374 If YES, the default address selection policy is set as 1375 IPv6-preferred. 1376 1377 The default value of $ipv6_prefer is NO. 1378 1379 4. If your system need to receive Router Advertisement messages, 1380 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1381 scripts automatically invoke rtsol(8) when the interface becomes 1382 UP. The Router Advertisement messages are used for SLAAC 1383 (State-Less Address AutoConfiguration). 1384 138520090922: 1386 802.11s D3.03 support was committed. This is incompatible with the 1387 previous code, which was based on D3.0. 1388 138920090912: 1390 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1391 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1392 control whether accepting Router Advertisement messages or not. 1393 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1394 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1395 The ifconfig(8) utility now supports these flags. 1396 139720090910: 1398 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1399 mount(8) and -a option for df(1) to see them. 1400 140120090825: 1402 The old tunable hw.bus.devctl_disable has been superseded by 1403 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1404 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1405 is 1000. 1406 140720090813: 1408 Remove the option STOP_NMI. The default action is now to use NMI only 1409 for KDB via the newly introduced function stop_cpus_hard() and 1410 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1411 141220090803: 1413 The stable/8 branch created in subversion. This corresponds to the 1414 RELENG_8 branch in CVS. 1415 141620090719: 1417 Bump the shared library version numbers for all libraries that do not 1418 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1419 __FreeBSD_version to 800105. 1420 142120090714: 1422 Due to changes in the implementation of virtual network stack support, 1423 all network-related kernel modules must be recompiled. As this change 1424 breaks the ABI, bump __FreeBSD_version to 800104. 1425 142620090713: 1427 The TOE interface to the TCP syncache has been modified to remove 1428 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1429 The cxgb driver is the only TOE consumer affected by this change, and 1430 needs to be recompiled along with the kernel. As this change breaks 1431 the ABI, bump __FreeBSD_version to 800103. 1432 143320090712: 1434 Padding has been added to struct tcpcb, sackhint and tcpstat in 1435 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1436 maintaining the ABI. However, this change breaks the ABI, so bump 1437 __FreeBSD_version to 800102. User space tools that rely on the size of 1438 any of these structs (e.g. sockstat) need to be recompiled. 1439 144020090630: 1441 The NFS_LEGACYRPC option has been removed along with the old kernel 1442 RPC implementation that this option selected. Kernel configurations 1443 may need to be adjusted. 1444 144520090629: 1446 The network interface device nodes at /dev/net/<interface> have been 1447 removed. All ioctl operations can be performed the normal way using 1448 routing sockets. The kqueue functionality can generally be replaced 1449 with routing sockets. 1450 145120090628: 1452 The documentation from the FreeBSD Documentation Project (Handbook, 1453 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1454 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1455 145620090624: 1457 The ABI of various structures related to the SYSV IPC API have been 1458 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1459 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1460 800100. 1461 146220090622: 1463 Layout of struct vnet has changed as routing related variables were 1464 moved to their own Vimage module. Modules need to be recompiled. Bump 1465 __FreeBSD_version to 800099. 1466 146720090619: 1468 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1469 respectively. As long as no more than 16 groups per process are used, 1470 no changes should be visible. When more than 16 groups are used, old 1471 binaries may fail if they call getgroups() or getgrouplist() with 1472 statically sized storage. Recompiling will work around this, but 1473 applications should be modified to use dynamically allocated storage 1474 for group arrays as POSIX.1-2008 does not cap an implementation's 1475 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1476 1477 NFS and portalfs mounts may also be affected as the list of groups is 1478 truncated to 16. Users of NFS who use more than 16 groups, should 1479 take care that negative group permissions are not used on the exported 1480 file systems as they will not be reliable unless a GSSAPI based 1481 authentication method is used. 1482 148320090616: 1484 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1485 option compiles in the support for adaptive spinning for lockmgrs 1486 which want to enable it. The lockinit() function now accepts the flag 1487 LK_ADAPTIVE in order to make the lock object subject to adaptive 1488 spinning when both held in write and read mode. 1489 149020090613: 1491 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1492 changed. User applications that use this ioctl need to be rebuilt. 1493 149420090611: 1495 The layout of struct thread has changed. Kernel and modules need to 1496 be rebuilt. 1497 149820090608: 1499 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1500 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1501 150220090602: 1503 window(1) has been removed from the base system. It can now be 1504 installed from ports. The port is called misc/window. 1505 150620090601: 1507 The way we are storing and accessing `routing table' entries has 1508 changed. Programs reading the FIB, like netstat, need to be 1509 re-compiled. 1510 151120090601: 1512 A new netisr implementation has been added for FreeBSD 8. Network 1513 file system modules, such as igmp, ipdivert, and others, should be 1514 rebuilt. 1515 Bump __FreeBSD_version to 800096. 1516 151720090530: 1518 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1519 more valid. 1520 152120090530: 1522 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1523 Bump __FreeBSD_version to 800094. 1524 152520090529: 1526 Add mnt_xflag field to 'struct mount'. File system modules need to be 1527 rebuilt. 1528 Bump __FreeBSD_version to 800093. 1529 153020090528: 1531 The compiling option ADAPTIVE_SX has been retired while it has been 1532 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1533 The KPI for sx_init_flags() changes as accepting flags: 1534 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1535 been introduced in order to handle the reversed logic. 1536 Bump __FreeBSD_version to 800092. 1537 153820090527: 1539 Add support for hierarchical jails. Remove global securelevel. 1540 Bump __FreeBSD_version to 800091. 1541 154220090523: 1543 The layout of struct vnet_net has changed, therefore modules 1544 need to be rebuilt. 1545 Bump __FreeBSD_version to 800090. 1546 154720090523: 1548 The newly imported zic(8) produces a new format in the output. Please 1549 run tzsetup(8) to install the newly created data to /etc/localtime. 1550 155120090520: 1552 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1553 hw.usb.* and is now consistent again with previous releases. 1554 155520090520: 1556 802.11 monitor mode support was revised and driver api's were changed. 1557 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1558 of DLT_IEEE802_11. No user-visible data structures were changed but 1559 applications that use DLT_IEEE802_11 may require changes. 1560 Bump __FreeBSD_version to 800088. 1561 156220090430: 1563 The layout of the following structs has changed: sysctl_oid, 1564 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1565 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1566 panics may be experienced. World rebuild is required for 1567 correctly checking networking state from userland. 1568 Bump __FreeBSD_version to 800085. 1569 157020090429: 1571 MLDv2 and Source-Specific Multicast (SSM) have been merged 1572 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1573 The implementation of SSM within FreeBSD's IPv6 stack closely 1574 follows the IPv4 implementation. 1575 1576 For kernel developers: 1577 1578 * The most important changes are that the ip6_output() and 1579 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1580 and this lock has been downgraded to a non-recursive mutex. 1581 1582 * As with the changes to the IPv4 stack to support SSM, filtering 1583 of inbound multicast traffic must now be performed by transport 1584 protocols within the IPv6 stack. This does not apply to TCP and 1585 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1586 1587 * The KPIs used by IPv6 multicast are similar to those used by 1588 the IPv4 stack, with the following differences: 1589 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1590 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1591 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1592 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1593 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1594 for MLDv1 have an additional 'timer' argument which is used to 1595 jitter the initial membership report for the solicited-node 1596 multicast membership on-link. 1597 * This is not strictly needed for MLDv2, which already jitters 1598 its report transmissions. However, the 'timer' argument is 1599 preserved in case MLDv1 is active on the interface. 1600 1601 * The KAME linked-list based IPv6 membership implementation has 1602 been refactored to use a vector similar to that used by the IPv4 1603 stack. 1604 Code which maintains a list of its own multicast memberships 1605 internally, e.g. carp, has been updated to reflect the new 1606 semantics. 1607 1608 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1609 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1610 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1611 implementation constraint which needs to be addressed in HEAD. 1612 1613 For application developers: 1614 1615 * The changes are broadly similar to those made for the IPv4 1616 stack. 1617 1618 * The use of IPv4 and IPv6 multicast socket options on the same 1619 socket, using mapped addresses, HAS NOT been tested or supported. 1620 1621 * There are a number of issues with the implementation of various 1622 IPv6 multicast APIs which need to be resolved in the API surface 1623 before the implementation is fully compatible with KAME userland 1624 use, and these are mostly to do with interface index treatment. 1625 1626 * The literature available discusses the use of either the delta / ASM 1627 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1628 using setsourcefilter(3)/getsourcefilter(3). For more information 1629 please refer to RFC 3768, 'Socket Interface Extensions for 1630 Multicast Source Filters'. 1631 1632 * Applications which use the published RFC 3678 APIs should be fine. 1633 1634 For systems administrators: 1635 1636 * The mtest(8) utility has been refactored to support IPv6, in 1637 addition to IPv4. Interface addresses are no longer accepted 1638 as arguments, their names must be used instead. The utility 1639 will map the interface name to its first IPv4 address as 1640 returned by getifaddrs(3). 1641 1642 * The ifmcstat(8) utility has also been updated to print the MLDv2 1643 endpoint state and source filter lists via sysctl(3). 1644 1645 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1646 loopback of IPv6 multicast datagrams by default; it defaults to 1 1647 to preserve the existing behaviour. Disabling multicast loopback is 1648 recommended for optimal system performance. 1649 1650 * The IPv6 MROUTING code has been changed to examine this sysctl 1651 instead of attempting to perform a group lookup before looping 1652 back forwarded datagrams. 1653 1654 Bump __FreeBSD_version to 800084. 1655 165620090422: 1657 Implement low-level Bluetooth HCI API. 1658 Bump __FreeBSD_version to 800083. 1659 166020090419: 1661 The layout of struct malloc_type, used by modules to register new 1662 memory allocation types, has changed. Most modules will need to 1663 be rebuilt or panics may be experienced. 1664 Bump __FreeBSD_version to 800081. 1665 166620090415: 1667 Anticipate overflowing inp_flags - add inp_flags2. 1668 This changes most offsets in inpcb, so checking v4 connection 1669 state will require a world rebuild. 1670 Bump __FreeBSD_version to 800080. 1671 167220090415: 1673 Add an llentry to struct route and struct route_in6. Modules 1674 embedding a struct route will need to be recompiled. 1675 Bump __FreeBSD_version to 800079. 1676 167720090414: 1678 The size of rt_metrics_lite and by extension rtentry has changed. 1679 Networking administration apps will need to be recompiled. 1680 The route command now supports show as an alias for get, weighting 1681 of routes, sticky and nostick flags to alter the behavior of stateful 1682 load balancing. 1683 Bump __FreeBSD_version to 800078. 1684 168520090408: 1686 Do not use Giant for kbdmux(4) locking. This is wrong and 1687 apparently causing more problems than it solves. This will 1688 re-open the issue where interrupt handlers may race with 1689 kbdmux(4) in polling mode. Typical symptoms include (but 1690 not limited to) duplicated and/or missing characters when 1691 low level console functions (such as gets) are used while 1692 interrupts are enabled (for example geli password prompt, 1693 mountroot prompt etc.). Disabling kbdmux(4) may help. 1694 169520090407: 1696 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1697 kernel modules referencing any of the above need to be recompiled. 1698 Bump __FreeBSD_version to 800075. 1699 170020090320: 1701 GEOM_PART has become the default partition slicer for storage devices, 1702 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1703 introduces some changes: 1704 1705 MSDOS/EBR: the devices created from MSDOS extended partition entries 1706 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1707 to devices with offset-based names. fstabs may need to be modified. 1708 1709 BSD: the "geometry does not match label" warning is harmless in most 1710 cases but it points to problems in file system misalignment with 1711 disk geometry. The "c" partition is now implicit, covers the whole 1712 top-level drive and cannot be (mis)used by users. 1713 1714 General: Kernel dumps are now not allowed to be written to devices 1715 whose partition types indicate they are meant to be used for file 1716 systems (or, in case of MSDOS partitions, as something else than 1717 the "386BSD" type). 1718 1719 Most of these changes date approximately from 200812. 1720 172120090319: 1722 The uscanner(4) driver has been removed from the kernel. This follows 1723 Linux removing theirs in 2.6 and making libusb the default interface 1724 (supported by sane). 1725 172620090319: 1727 The multicast forwarding code has been cleaned up. netstat(1) 1728 only relies on KVM now for printing bandwidth upcall meters. 1729 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1730 ip6_mroute_mod respectively. The config(5) options for statically 1731 compiling this code remain the same, i.e. 'options MROUTING'. 1732 173320090315: 1734 Support for the IFF_NEEDSGIANT network interface flag has been 1735 removed, which means that non-MPSAFE network device drivers are no 1736 longer supported. In particular, if_ar, if_sr, and network device 1737 drivers from the old (legacy) USB stack can no longer be built or 1738 used. 1739 174020090313: 1741 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1742 a bunch of new language catalog files have also been added. 1743 This means that some common libc messages are now localized and 1744 they depend on the LC_MESSAGES environmental variable. 1745 174620090313: 1747 The k8temp(4) driver has been renamed to amdtemp(4) since 1748 support for Family 10 and Family 11 CPU families was added. 1749 175020090309: 1751 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1752 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1753 1754 For kernel developers, the most important changes are that the 1755 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1756 and this lock has been downgraded to a non-recursive mutex. 1757 1758 Transport protocols (UDP, Raw IP) are now responsible for filtering 1759 inbound multicast traffic according to group membership and source 1760 filters. The imo_multicast_filter() KPI exists for this purpose. 1761 Transports which do not use multicast (SCTP, TCP) already reject 1762 multicast by default. Forwarding and receive performance may improve 1763 as a mutex acquisition is no longer needed in the ip_input() 1764 low-level input path. in_addmulti() and in_delmulti() are shimmed 1765 to new KPIs which exist to support SSM in-kernel. 1766 1767 For application developers, it is recommended that loopback of 1768 multicast datagrams be disabled for best performance, as this 1769 will still cause the lock to be taken for each looped-back 1770 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1771 be tuned to 0 to disable loopback by default; it defaults to 1 1772 to preserve the existing behaviour. 1773 1774 For systems administrators, to obtain best performance with 1775 multicast reception and multiple groups, it is always recommended 1776 that a card with a suitably precise hash filter is used. Hash 1777 collisions will still result in the lock being taken within the 1778 transport protocol input path to check group membership. 1779 1780 If deploying FreeBSD in an environment with IGMP snooping switches, 1781 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1782 enabled; this forces 224.0.0.0/24 group membership to be announced 1783 via IGMP. 1784 1785 The size of 'struct igmpstat' has changed; netstat needs to be 1786 recompiled to reflect this. 1787 Bump __FreeBSD_version to 800070. 1788 178920090309: 1790 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1791 updated to use it. This requires a buildworld/installworld in order to 1792 update the library and dependencies (usbconfig, etc). Its advisable to 1793 rebuild all ports which uses libusb. More specific directions are given 1794 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1795 libusb are no longer required and can be removed. 1796 179720090302: 1798 A workaround is committed to allow the creation of System V shared 1799 memory segment of size > 2 GB on the 64-bit architectures. 1800 Due to a limitation of the existing ABI, the shm_segsz member 1801 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1802 wrong for large segments. Note that limits must be explicitly 1803 raised to allow such segments to be created. 1804 180520090301: 1806 The layout of struct ifnet has changed, requiring a rebuild of all 1807 network device driver modules. 1808 180920090227: 1810 The /dev handling for the new USB stack has changed, a 1811 buildworld/installworld is required for libusb20. 1812 181320090223: 1814 The new USB2 stack has now been permanently moved in and all kernel and 1815 module names reverted to their previous values (eg, usb, ehci, ohci, 1816 ums, ...). The old usb stack can be compiled in by prefixing the name 1817 with the letter 'o', the old usb modules have been removed. 1818 Updating entry 20090216 for xorg and 20090215 for libmap may still 1819 apply. 1820 182120090217: 1822 The rc.conf(5) option if_up_delay has been renamed to 1823 defaultroute_delay to better reflect its purpose. If you have 1824 customized this setting in /etc/rc.conf you need to update it to 1825 use the new name. 1826 182720090216: 1828 xorg 7.4 wants to configure its input devices via hald which does not 1829 yet work with USB2. If the keyboard/mouse does not work in xorg then 1830 add 1831 Option "AllowEmptyInput" "off" 1832 to your ServerLayout section. This will cause X to use the configured 1833 kbd and mouse sections from your xorg.conf. 1834 183520090215: 1836 The GENERIC kernels for all architectures now default to the new USB2 1837 stack. No kernel config options or code have been removed so if a 1838 problem arises please report it and optionally revert to the old USB 1839 stack. If you are loading USB kernel modules or have a custom kernel 1840 that includes GENERIC then ensure that usb names are also changed over, 1841 eg uftdi -> usb2_serial_ftdi. 1842 1843 Older programs linked against the ports libusb 0.1 need to be 1844 redirected to the new stack's libusb20. /etc/libmap.conf can 1845 be used for this: 1846 # Map old usb library to new one for usb2 stack 1847 libusb-0.1.so.8 libusb20.so.1 1848 184920090209: 1850 All USB ethernet devices now attach as interfaces under the name ueN 1851 (eg. ue0). This is to provide a predictable name as vendors often 1852 change usb chipsets in a product without notice. 1853 185420090203: 1855 The ichsmb(4) driver has been changed to require SMBus slave 1856 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1857 All of the other SMBus controller drivers require left-justified 1858 slave addresses, so this change makes all the drivers provide the 1859 same interface. 1860 186120090201: 1862 INET6 statistics (struct ip6stat) was updated. 1863 netstat(1) needs to be recompiled. 1864 186520090119: 1866 NTFS has been removed from GENERIC kernel on amd64 to match 1867 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1868 will load ntfs.ko module automatically when NTFS support is 1869 actually needed, unless ntfs.ko is not installed or security 1870 level prohibits loading kernel modules. If either is the case, 1871 "options NTFS" has to be added into kernel config. 1872 187320090115: 1874 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1875 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1876 800061. User space tools that rely on the size of struct tcpcb in 1877 tcp_var.h (e.g. sockstat) need to be recompiled. 1878 187920081225: 1880 ng_tty(4) module updated to match the new TTY subsystem. 1881 Due to API change, user-level applications must be updated. 1882 New API support added to mpd5 CVS and expected to be present 1883 in next mpd5.3 release. 1884 188520081219: 1886 With __FreeBSD_version 800060 the makefs tool is part of 1887 the base system (it was a port). 1888 188920081216: 1890 The afdata and ifnet locks have been changed from mutexes to 1891 rwlocks, network modules will need to be re-compiled. 1892 189320081214: 1894 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1895 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1896 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1897 architecture and 40 bytes on 64-bit architecture. The userland 1898 applications "arp" and "ndp" have been updated accordingly. 1899 The output from "netstat -r" shows only routing entries and 1900 none of the L2 information. 1901 190220081130: 1903 __FreeBSD_version 800057 marks the switchover from the 1904 binary ath hal to source code. Users must add the line: 1905 1906 options AH_SUPPORT_AR5416 1907 1908 to their kernel config files when specifying: 1909 1910 device ath_hal 1911 1912 The ath_hal module no longer exists; the code is now compiled 1913 together with the driver in the ath module. It is now 1914 possible to tailor chip support (i.e. reduce the set of chips 1915 and thereby the code size); consult ath_hal(4) for details. 1916 191720081121: 1918 __FreeBSD_version 800054 adds memory barriers to 1919 <machine/atomic.h>, new interfaces to ifnet to facilitate 1920 multiple hardware transmit queues for cards that support 1921 them, and a lock-less ring-buffer implementation to 1922 enable drivers to more efficiently manage queueing of 1923 packets. 1924 192520081117: 1926 A new version of ZFS (version 13) has been merged to -HEAD. 1927 This version has zpool attribute "listsnapshots" off by 1928 default, which means "zfs list" does not show snapshots, 1929 and is the same as Solaris behavior. 1930 193120081028: 1932 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1933 193420081009: 1935 The uhci, ohci, ehci and slhci USB Host controller drivers have 1936 been put into separate modules. If you load the usb module 1937 separately through loader.conf you will need to load the 1938 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1939 controller add the following to loader.conf: 1940 1941 uhci_load="YES" 1942 ehci_load="YES" 1943 194420081009: 1945 The ABI used by the PMC toolset has changed. Please keep 1946 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1947 sync. 1948 194920081009: 1950 atapci kernel module now includes only generic PCI ATA 1951 driver. AHCI driver moved to ataahci kernel module. 1952 All vendor-specific code moved into separate kernel modules: 1953 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1954 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1955 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1956 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1957 195820080820: 1959 The TTY subsystem of the kernel has been replaced by a new 1960 implementation, which provides better scalability and an 1961 improved driver model. Most common drivers have been migrated to 1962 the new TTY subsystem, while others have not. The following 1963 drivers have not yet been ported to the new TTY layer: 1964 1965 PCI/ISA: 1966 cy, digi, rc, rp, sio 1967 1968 USB: 1969 ubser, ucycom 1970 1971 Line disciplines: 1972 ng_h4, ng_tty, ppp, sl, snp 1973 1974 Adding these drivers to your kernel configuration file shall 1975 cause compilation to fail. 1976 197720080818: 1978 ntpd has been upgraded to 4.2.4p5. 1979 198020080801: 1981 OpenSSH has been upgraded to 5.1p1. 1982 1983 For many years, FreeBSD's version of OpenSSH preferred DSA 1984 over RSA for host and user authentication keys. With this 1985 upgrade, we've switched to the vendor's default of RSA over 1986 DSA. This may cause upgraded clients to warn about unknown 1987 host keys even for previously known hosts. Users should 1988 follow the usual procedure for verifying host keys before 1989 accepting the RSA key. 1990 1991 This can be circumvented by setting the "HostKeyAlgorithms" 1992 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1993 command line. 1994 1995 Please note that the sequence of keys offered for 1996 authentication has been changed as well. You may want to 1997 specify IdentityFile in a different order to revert this 1998 behavior. 1999 200020080713: 2001 The sio(4) driver has been removed from the i386 and amd64 2002 kernel configuration files. This means uart(4) is now the 2003 default serial port driver on those platforms as well. 2004 2005 To prevent collisions with the sio(4) driver, the uart(4) driver 2006 uses different names for its device nodes. This means the 2007 onboard serial port will now most likely be called "ttyu0" 2008 instead of "ttyd0". You may need to reconfigure applications to 2009 use the new device names. 2010 2011 When using the serial port as a boot console, be sure to update 2012 /boot/device.hints and /etc/ttys before booting the new kernel. 2013 If you forget to do so, you can still manually specify the hints 2014 at the loader prompt: 2015 2016 set hint.uart.0.at="isa" 2017 set hint.uart.0.port="0x3F8" 2018 set hint.uart.0.flags="0x10" 2019 set hint.uart.0.irq="4" 2020 boot -s 2021 202220080609: 2023 The gpt(8) utility has been removed. Use gpart(8) to partition 2024 disks instead. 2025 202620080603: 2027 The version that Linuxulator emulates was changed from 2.4.2 2028 to 2.6.16. If you experience any problems with Linux binaries 2029 please try to set sysctl compat.linux.osrelease to 2.4.2 and 2030 if it fixes the problem contact emulation mailing list. 2031 203220080525: 2033 ISDN4BSD (I4B) was removed from the src tree. You may need to 2034 update a your kernel configuration and remove relevant entries. 2035 203620080509: 2037 I have checked in code to support multiple routing tables. 2038 See the man pages setfib(1) and setfib(2). 2039 This is a hopefully backwards compatible version, 2040 but to make use of it you need to compile your kernel 2041 with options ROUTETABLES=2 (or more up to 16). 2042 204320080420: 2044 The 802.11 wireless support was redone to enable multi-bss 2045 operation on devices that are capable. The underlying device 2046 is no longer used directly but instead wlanX devices are 2047 cloned with ifconfig. This requires changes to rc.conf files. 2048 For example, change: 2049 ifconfig_ath0="WPA DHCP" 2050 to 2051 wlans_ath0=wlan0 2052 ifconfig_wlan0="WPA DHCP" 2053 see rc.conf(5) for more details. In addition, mergemaster of 2054 /etc/rc.d is highly recommended. Simultaneous update of userland 2055 and kernel wouldn't hurt either. 2056 2057 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 2058 modules were merged into the base wlan module. All references 2059 to these modules (e.g. in kernel config files) must be removed. 2060 206120080408: 2062 psm(4) has gained write(2) support in native operation level. 2063 Arbitrary commands can be written to /dev/psm%d and status can 2064 be read back from it. Therefore, an application is responsible 2065 for status validation and error recovery. It is a no-op in 2066 other operation levels. 2067 206820080312: 2069 Support for KSE threading has been removed from the kernel. To 2070 run legacy applications linked against KSE libmap.conf may 2071 be used. The following libmap.conf may be used to ensure 2072 compatibility with any prior release: 2073 2074 libpthread.so.1 libthr.so.1 2075 libpthread.so.2 libthr.so.2 2076 libkse.so.3 libthr.so.3 2077 207820080301: 2079 The layout of struct vmspace has changed. This affects libkvm 2080 and any executables that link against libkvm and use the 2081 kvm_getprocs() function. In particular, but not exclusively, 2082 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2083 The effects are minimal, but it's advisable to upgrade world 2084 nonetheless. 2085 208620080229: 2087 The latest em driver no longer has support in it for the 2088 82575 adapter, this is now moved to the igb driver. The 2089 split was done to make new features that are incompatible 2090 with older hardware easier to do. 2091 209220080220: 2093 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2094 likewise the kernel option is now GEOM_LINUX_LVM. 2095 209620080211: 2097 The default NFS mount mode has changed from UDP to TCP for 2098 increased reliability. If you rely on (insecurely) NFS 2099 mounting across a firewall you may need to update your 2100 firewall rules. 2101 210220080208: 2103 Belatedly note the addition of m_collapse for compacting 2104 mbuf chains. 2105 210620080126: 2107 The fts(3) structures have been changed to use adequate 2108 integer types for their members and so to be able to cope 2109 with huge file trees. The old fts(3) ABI is preserved 2110 through symbol versioning in libc, so third-party binaries 2111 using fts(3) should still work, although they will not take 2112 advantage of the extended types. At the same time, some 2113 third-party software might fail to build after this change 2114 due to unportable assumptions made in its source code about 2115 fts(3) structure members. Such software should be fixed 2116 by its vendor or, in the worst case, in the ports tree. 2117 FreeBSD_version 800015 marks this change for the unlikely 2118 case that a portable fix is impossible. 2119 212020080123: 2121 To upgrade to -current after this date, you must be running 2122 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2123 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2124 212520071128: 2126 The ADAPTIVE_GIANT kernel option has been retired because its 2127 functionality is the default now. 2128 212920071118: 2130 The AT keyboard emulation of sunkbd(4) has been turned on 2131 by default. In order to make the special symbols of the Sun 2132 keyboards driven by sunkbd(4) work under X these now have 2133 to be configured the same way as Sun USB keyboards driven 2134 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2135 2136 Option "XkbLayout" "us" 2137 Option "XkbRules" "xorg" 2138 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2139 214020071024: 2141 It has been decided that it is desirable to provide ABI 2142 backwards compatibility to the FreeBSD 4/5/6 versions of the 2143 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2144 broken with the introduction of PCI domain support (see the 2145 20070930 entry). Unfortunately, this required the ABI of 2146 PCIOCGETCONF to be broken again in order to be able to 2147 provide backwards compatibility to the old version of that 2148 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2149 again. As for prominent ports this affects neither pciutils 2150 nor xorg-server this time, the hal port needs to be rebuilt 2151 however. 2152 215320071020: 2154 The misnamed kthread_create() and friends have been renamed 2155 to kproc_create() etc. Many of the callers already 2156 used kproc_start().. 2157 I will return kthread_create() and friends in a while 2158 with implementations that actually create threads, not procs. 2159 Renaming corresponds with version 800002. 2160 216120071010: 2162 RELENG_7 branched. 2163 2164COMMON ITEMS: 2165 2166 General Notes 2167 ------------- 2168 Avoid using make -j when upgrading. While generally safe, there are 2169 sometimes problems using -j to upgrade. If your upgrade fails with 2170 -j, please try again without -j. From time to time in the past there 2171 have been problems using -j with buildworld and/or installworld. This 2172 is especially true when upgrading between "distant" versions (eg one 2173 that cross a major release boundary or several minor releases, or when 2174 several months have passed on the -current branch). 2175 2176 Sometimes, obscure build problems are the result of environment 2177 poisoning. This can happen because the make utility reads its 2178 environment when searching for values for global variables. To run 2179 your build attempts in an "environmental clean room", prefix all make 2180 commands with 'env -i '. See the env(1) manual page for more details. 2181 2182 When upgrading from one major version to another it is generally best 2183 to upgrade to the latest code in the currently installed branch first, 2184 then do an upgrade to the new branch. This is the best-tested upgrade 2185 path, and has the highest probability of being successful. Please try 2186 this approach before reporting problems with a major version upgrade. 2187 2188 When upgrading a live system, having a root shell around before 2189 installing anything can help undo problems. Not having a root shell 2190 around can lead to problems if pam has changed too much from your 2191 starting point to allow continued authentication after the upgrade. 2192 2193 ZFS notes 2194 --------- 2195 When upgrading the boot ZFS pool to a new version, always follow 2196 these two steps: 2197 2198 1.) recompile and reinstall the ZFS boot loader and boot block 2199 (this is part of "make buildworld" and "make installworld") 2200 2201 2.) update the ZFS boot block on your boot drive 2202 2203 The following example updates the ZFS boot block on the first 2204 partition (freebsd-boot) of a GPT partitioned drive ad0: 2205 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2206 2207 Non-boot pools do not need these updates. 2208 2209 To build a kernel 2210 ----------------- 2211 If you are updating from a prior version of FreeBSD (even one just 2212 a few days old), you should follow this procedure. It is the most 2213 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2214 2215 make kernel-toolchain 2216 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2217 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2218 2219 To test a kernel once 2220 --------------------- 2221 If you just want to boot a kernel once (because you are not sure 2222 if it works, or if you want to boot a known bad kernel to provide 2223 debugging information) run 2224 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2225 nextboot -k testkernel 2226 2227 To just build a kernel when you know that it won't mess you up 2228 -------------------------------------------------------------- 2229 This assumes you are already running a CURRENT system. Replace 2230 ${arch} with the architecture of your machine (e.g. "i386", 2231 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2232 2233 cd src/sys/${arch}/conf 2234 config KERNEL_NAME_HERE 2235 cd ../compile/KERNEL_NAME_HERE 2236 make depend 2237 make 2238 make install 2239 2240 If this fails, go to the "To build a kernel" section. 2241 2242 To rebuild everything and install it on the current system. 2243 ----------------------------------------------------------- 2244 # Note: sometimes if you are running current you gotta do more than 2245 # is listed here if you are upgrading from a really old current. 2246 2247 <make sure you have good level 0 dumps> 2248 make buildworld 2249 make kernel KERNCONF=YOUR_KERNEL_HERE 2250 [1] 2251 <reboot in single user> [3] 2252 mergemaster -p [5] 2253 make installworld 2254 mergemaster -i [4] 2255 make delete-old [6] 2256 <reboot> 2257 2258 To cross-install current onto a separate partition 2259 -------------------------------------------------- 2260 # In this approach we use a separate partition to hold 2261 # current's root, 'usr', and 'var' directories. A partition 2262 # holding "/", "/usr" and "/var" should be about 2GB in 2263 # size. 2264 2265 <make sure you have good level 0 dumps> 2266 <boot into -stable> 2267 make buildworld 2268 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2269 <maybe newfs current's root partition> 2270 <mount current's root partition on directory ${CURRENT_ROOT}> 2271 make installworld DESTDIR=${CURRENT_ROOT} 2272 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2273 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2274 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2275 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2276 <reboot into current> 2277 <do a "native" rebuild/install as described in the previous section> 2278 <maybe install compatibility libraries from ports/misc/compat*> 2279 <reboot> 2280 2281 2282 To upgrade in-place from stable to current 2283 ---------------------------------------------- 2284 <make sure you have good level 0 dumps> 2285 make buildworld [9] 2286 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2287 [1] 2288 <reboot in single user> [3] 2289 mergemaster -p [5] 2290 make installworld 2291 mergemaster -i [4] 2292 make delete-old [6] 2293 <reboot> 2294 2295 Make sure that you've read the UPDATING file to understand the 2296 tweaks to various things you need. At this point in the life 2297 cycle of current, things change often and you are on your own 2298 to cope. The defaults can also change, so please read ALL of 2299 the UPDATING entries. 2300 2301 Also, if you are tracking -current, you must be subscribed to 2302 freebsd-current@freebsd.org. Make sure that before you update 2303 your sources that you have read and understood all the recent 2304 messages there. If in doubt, please track -stable which has 2305 much fewer pitfalls. 2306 2307 [1] If you have third party modules, such as vmware, you 2308 should disable them at this point so they don't crash your 2309 system on reboot. 2310 2311 [3] From the bootblocks, boot -s, and then do 2312 fsck -p 2313 mount -u / 2314 mount -a 2315 cd src 2316 adjkerntz -i # if CMOS is wall time 2317 Also, when doing a major release upgrade, it is required that 2318 you boot into single user mode to do the installworld. 2319 2320 [4] Note: This step is non-optional. Failure to do this step 2321 can result in a significant reduction in the functionality of the 2322 system. Attempting to do it by hand is not recommended and those 2323 that pursue this avenue should read this file carefully, as well 2324 as the archives of freebsd-current and freebsd-hackers mailing lists 2325 for potential gotchas. The -U option is also useful to consider. 2326 See mergemaster(8) for more information. 2327 2328 [5] Usually this step is a noop. However, from time to time 2329 you may need to do this if you get unknown user in the following 2330 step. It never hurts to do it all the time. You may need to 2331 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2332 install) after the buildworld before this step if you last updated 2333 from current before 20130425 or from -stable before 20130430. 2334 2335 [6] This only deletes old files and directories. Old libraries 2336 can be deleted by "make delete-old-libs", but you have to make 2337 sure that no program is using those libraries anymore. 2338 2339 [8] In order to have a kernel that can run the 4.x binaries needed to 2340 do an installworld, you must include the COMPAT_FREEBSD4 option in 2341 your kernel. Failure to do so may leave you with a system that is 2342 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2343 required to run the 5.x binaries on more recent kernels. And so on 2344 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2345 2346 Make sure that you merge any new devices from GENERIC since the 2347 last time you updated your kernel config file. 2348 2349 [9] When checking out sources, you must include the -P flag to have 2350 cvs prune empty directories. 2351 2352 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2353 "?=" instead of the "=" assignment operator, so that buildworld can 2354 override the CPUTYPE if it needs to. 2355 2356 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2357 not on the command line, or in /etc/make.conf. buildworld will 2358 warn if it is improperly defined. 2359FORMAT: 2360 2361This file contains a list, in reverse chronological order, of major 2362breakages in tracking -current. It is not guaranteed to be a complete 2363list of such breakages, and only contains entries since October 10, 2007. 2364If you need to see UPDATING entries from before that date, you will need 2365to fetch an UPDATING file from an older FreeBSD release. 2366 2367Copyright information: 2368 2369Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2370 2371Redistribution, publication, translation and use, with or without 2372modification, in full or in part, in any form or format of this 2373document are permitted without further permission from the author. 2374 2375THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2376IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2377WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2378DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2379INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2380(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2381SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2382HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2383STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2384IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2385POSSIBILITY OF SUCH DAMAGE. 2386 2387Contact Warner Losh if you have any questions about your use of 2388this document. 2389 2390$FreeBSD: releng/10.3/UPDATING 311916 2017-01-11 06:01:23Z delphij $ 2391