UPDATING revision 277808
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 1920150127: p5 FreeBSD-SA-15:02.kmem 20 FreeBSD-SA-15:03.sctp 21 22 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 23 vulnerability. [SA-15:02] 24 25 Fix SCTP stream reset vulnerability. [SA-15:03] 26 2720150114: p4 FreeBSD-SA-15:01.openssl 28 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 29 3020141223: p3 FreeBSD-SA-14:31.ntp 31 FreeBSD-EN-14:13.freebsd-update 32 33 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 34 Fix directory deletion issue in freebsd-update. [EN-14:13] 35 3620141217: p2 FreeBSD-SA-14:30.unbound 37 Fix unbound remote denial of service vulnerability. 38 3920141210: p1 FreeBSD-SA-14:27.stdio 40 FreeBSD-SA-14:28.file 41 42 Fix buffer overflow in stdio. [SA-14:27] 43 44 Fix multiple vulnerabilities in file(1) and libmagic(3). 45 [SA-14:28] 46 4720140904: 48 The ofwfb driver, used to provide a graphics console on PowerPC when 49 using vt(4), no longer allows mmap() of all of physical memory. This 50 will prevent Xorg on PowerPC with some ATI graphics cards from 51 initializing properly unless x11-servers/xorg-server is updated to 52 1.12.4_8 or newer. 53 5420140831: 55 The libatf-c and libatf-c++ major versions were downgraded to 0 and 56 1 respectively to match the upstream numbers. They were out of 57 sync because, when they were originally added to FreeBSD, the 58 upstream versions were not respected. These libraries are private 59 and not yet built by default, so renumbering them should be a 60 non-issue. However, unclean source trees will yield broken test 61 programs once the operator executes "make delete-old-libs" after a 62 "make installworld". 63 64 Additionally, the atf-sh binary was made private by moving it into 65 /usr/libexec/. Already-built shell test programs will keep the 66 path to the old binary so they will break after "make delete-old" 67 is run. 68 69 If you are using WITH_TESTS=yes (not the default), wipe the object 70 tree and rebuild from scratch to prevent spurious test failures. 71 This is only needed once: the misnumbered libraries and misplaced 72 binaries have been added to OptionalObsoleteFiles.inc so they will 73 be removed during a clean upgrade. 74 7520140814: 76 The ixgbe tunables now match their sysctl counterparts, for example: 77 hw.ixgbe.enable_aim => hw.ix.enable_aim 78 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 79 8020140801: 81 The NFSv4.1 server committed by r269398 changes the internal 82 function call interfaces used between the NFS and krpc modules. 83 As such, __FreeBSD_version was bumped. 84 8520140729: 86 The default unbound configuration has been modified to address 87 issues with reverse lookups on networks that use private 88 address ranges. If you use the local_unbound service, run 89 "service local_unbound setup" as root to regenerate your 90 configuration, then "service local_unbound reload" to load the 91 new configuration. 92 9320140717: 94 It is no longer necessary to include the dwarf version in your DEBUG 95 options in your kernel config file. The bug that required it to be 96 placed in the config file has bene fixed. DEBUG should now just 97 contain -g. The build system will automatically update things 98 to do the right thing. 99 10020140715: 101 Several ABI breaking changes were merged to CTL and new iSCSI code. 102 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 103 iscsictl need to be rebuilt to work with a new kernel. 104 10520140708: 106 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 107 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 108 which differs from the behaviour controlled by this knob.) 109 11020140608: 111 On i386 and amd64 systems, the onifconsole flag is now set by default 112 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 113 as a login TTY if it is set in the bootloader as an active kernel 114 console. No changes in behavior should result otherwise. To revert to 115 the previous behavior, set ttyu0 to "off" in /etc/ttys. 116 11720140512: 118 Clang and llvm have been upgraded to 3.4.1 release. 119 12020140321: 121 Clang and llvm have been upgraded to 3.4 release. 122 12320140306: 124 If a Makefile in a tests/ directory was auto-generating a Kyuafile 125 instead of providing an explicit one, this would prevent such 126 Makefile from providing its own Kyuafile in the future during 127 NO_CLEAN builds. This has been fixed in the Makefiles but manual 128 intervention is needed to clean an objdir if you use NO_CLEAN: 129 # find /usr/obj -name Kyuafile | xargs rm -f 130 13120140303: 132 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 133 capability mode support. Please note that enabling the feature in 134 kernel is still highly recommended. 135 13620140227: 137 OpenSSH is now built with sandbox support, and will use sandbox as 138 the default privilege separation method. This requires Capsicum 139 capability mode support in kernel. 140 14120140216: 142 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 143 been deprecated and will not be part of FreeBSD 11.0 and later 144 releases. If you use this driver, please consider switching to 145 the nfe(4) driver instead. 146 14720140120: 148 10.0-RELEASE. 149 15020131216: 151 The behavior of gss_pseudo_random() for the krb5 mechanism 152 has changed, for applications requesting a longer random string 153 than produced by the underlying enctype's pseudo-random() function. 154 In particular, the random string produced from a session key of 155 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 156 be different at the 17th octet and later, after this change. 157 The counter used in the PRF+ construction is now encoded as a 158 big-endian integer in accordance with RFC 4402. 159 __FreeBSD_version is bumped to 1000701. 160 16120131108: 162 The WITHOUT_ATF build knob has been removed and its functionality 163 has been subsumed into the more generic WITHOUT_TESTS. If you were 164 using the former to disable the build of the ATF libraries, you 165 should change your settings to use the latter. 166 16720131031: 168 The default version of mtree is nmtree which is obtained from 169 NetBSD. The output is generally the same, but may vary 170 slightly. If you found you need identical output adding 171 "-F freebsd9" to the command line should do the trick. For the 172 time being, the old mtree is available as fmtree. 173 17420131014: 175 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 176 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 177 1.1.4_8 and verify bsdyml not linked in, before running "make 178 delete-old-libs": 179 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 180 or 181 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 182 18320131010: 184 The rc.d/jail script has been updated to support jail(8) 185 configuration file. The "jail_<jname>_*" rc.conf(5) variables 186 for per-jail configuration are automatically converted to 187 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 188 This is transparently backward compatible. See below about some 189 incompatibilities and rc.conf(5) manual page for more details. 190 191 These variables are now deprecated in favor of jail(8) configuration 192 file. One can use "rc.d/jail config <jname>" command to generate 193 a jail(8) configuration file in /var/run/jail.<jname>.conf without 194 running the jail(8) utility. The default pathname of the 195 configuration file is /etc/jail.conf and can be specified by 196 using $jail_conf or $jail_<jname>_conf variables. 197 198 Please note that jail_devfs_ruleset accepts an integer at 199 this moment. Please consider to rewrite the ruleset name 200 with an integer. 201 20220130930: 203 BIND has been removed from the base system. If all you need 204 is a local resolver, simply enable and start the local_unbound 205 service instead. Otherwise, several versions of BIND are 206 available in the ports tree. The dns/bind99 port is one example. 207 208 With this change, nslookup(1) and dig(1) are no longer in the base 209 system. Users should instead use host(1) and drill(1) which are 210 in the base system. Alternatively, nslookup and dig can 211 be obtained by installing the dns/bind-tools port. 212 21320130916: 214 With the addition of unbound(8), a new unbound user is now 215 required during installworld. "mergemaster -p" can be used to 216 add the user prior to installworld, as documented in the handbook. 217 21820130911: 219 OpenSSH is now built with DNSSEC support, and will by default 220 silently trust signed SSHFP records. This can be controlled with 221 the VerifyHostKeyDNS client configuration setting. DNSSEC support 222 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 223 22420130906: 225 The GNU Compiler Collection and C++ standard library (libstdc++) 226 are no longer built by default on platforms where clang is the system 227 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 228 options in src.conf. 229 23020130905: 231 The PROCDESC kernel option is now part of the GENERIC kernel 232 configuration and is required for the rwhod(8) to work. 233 If you are using custom kernel configuration, you should include 234 'options PROCDESC'. 235 23620130905: 237 The API and ABI related to the Capsicum framework was modified 238 in backward incompatible way. The userland libraries and programs 239 have to be recompiled to work with the new kernel. This includes the 240 following libraries and programs, but the whole buildworld is 241 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 242 kdump, procstat, rwho, rwhod, uniq. 243 24420130903: 245 AES-NI intrinsic support has been added to gcc. The AES-NI module 246 has been updated to use this support. A new gcc is required to build 247 the aesni module on both i386 and amd64. 248 24920130821: 250 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 251 Thus "device padlock_rng" and "device rdrand_rng" should be 252 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 253 25420130813: 255 WITH_ICONV has been split into two feature sets. WITH_ICONV now 256 enables just the iconv* functionality and is now on by default. 257 WITH_LIBICONV_COMPAT enables the libiconv api and link time 258 compatability. Set WITHOUT_ICONV to build the old way. 259 If you have been using WITH_ICONV before, you will very likely 260 need to turn on WITH_LIBICONV_COMPAT. 261 26220130806: 263 INVARIANTS option now enables DEBUG for code with OpenSolaris and 264 Illumos origin, including ZFS. If you have INVARIANTS in your 265 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 266 explicitly. 267 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 268 locks if WITNESS option was set. Because that generated a lot of 269 witness(9) reports and all of them were believed to be false 270 positives, this is no longer done. New option OPENSOLARIS_WITNESS 271 can be used to achieve the previous behavior. 272 27320130806: 274 Timer values in IPv6 data structures now use time_uptime instead 275 of time_second. Although this is not a user-visible functional 276 change, userland utilities which directly use them---ndp(8), 277 rtadvd(8), and rtsold(8) in the base system---need to be updated 278 to r253970 or later. 279 28020130802: 281 find -delete can now delete the pathnames given as arguments, 282 instead of only files found below them or if the pathname did 283 not contain any slashes. Formerly, the following error message 284 would result: 285 286 find: -delete: <path>: relative path potentially not safe 287 288 Deleting the pathnames given as arguments can be prevented 289 without error messages using -mindepth 1 or by changing 290 directory and passing "." as argument to find. This works in the 291 old as well as the new version of find. 292 29320130726: 294 Behavior of devfs rules path matching has been changed. 295 Pattern is now always matched against fully qualified devfs 296 path and slash characters must be explicitly matched by 297 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 298 subdirectories must be reviewed. 299 30020130716: 301 The default ARM ABI has changed to the ARM EABI. The old ABI is 302 incompatible with the ARM EABI and all programs and modules will 303 need to be rebuilt to work with a new kernel. 304 305 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 306 307 NOTE: Support for the old ABI will be removed in the future and 308 users are advised to upgrade. 309 31020130709: 311 pkg_install has been disconnected from the build if you really need it 312 you should add WITH_PKGTOOLS in your src.conf(5). 313 31420130709: 315 Most of network statistics structures were changed to be able 316 keep 64-bits counters. Thus all tools, that work with networking 317 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 318 31920130629: 320 Fix targets that run multiple make's to use && rather than ; 321 so that subsequent steps depend on success of previous. 322 323 NOTE: if building 'universe' with -j* on stable/8 or stable/9 324 it would be better to start the build using bmake, to avoid 325 overloading the machine. 326 32720130618: 328 Fix a bug that allowed a tracing process (e.g. gdb) to write 329 to a memory-mapped file in the traced process's address space 330 even if neither the traced process nor the tracing process had 331 write access to that file. 332 33320130615: 334 CVS has been removed from the base system. An exact copy 335 of the code is available from the devel/cvs port. 336 33720130613: 338 Some people report the following error after the switch to bmake: 339 340 make: illegal option -- J 341 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 342 ... 343 *** [buildworld] Error code 2 344 345 this likely due to an old instance of make in 346 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 347 which src/Makefile will use that blindly, if it exists, so if 348 you see the above error: 349 350 rm -rf `make -V MAKEPATH` 351 352 should resolve it. 353 35420130516: 355 Use bmake by default. 356 Whereas before one could choose to build with bmake via 357 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 358 make. The goal is to remove these knobs for 10-RELEASE. 359 360 It is worth noting that bmake (like gmake) treats the command 361 line as the unit of failure, rather than statements within the 362 command line. Thus '(cd some/where && dosomething)' is safer 363 than 'cd some/where; dosomething'. The '()' allows consistent 364 behavior in parallel build. 365 36620130429: 367 Fix a bug that allows NFS clients to issue READDIR on files. 368 36920130426: 370 The WITHOUT_IDEA option has been removed because 371 the IDEA patent expired. 372 37320130426: 374 The sysctl which controls TRIM support under ZFS has been renamed 375 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 376 enabled by default. 377 37820130425: 379 The mergemaster command now uses the default MAKEOBJDIRPREFIX 380 rather than creating it's own in the temporary directory in 381 order allow access to bootstrapped versions of tools such as 382 install and mtree. When upgrading from version of FreeBSD where 383 the install command does not support -l, you will need to 384 install a new mergemaster command if mergemaster -p is required. 385 This can be accomplished with the command (cd src/usr.sbin/mergemaster 386 && make install). 387 38820130404: 389 Legacy ATA stack, disabled and replaced by new CAM-based one since 390 FreeBSD 9.0, completely removed from the sources. Kernel modules 391 atadisk and atapi*, user-level tools atacontrol and burncd are 392 removed. Kernel option `options ATA_CAM` is now permanently enabled 393 and removed. 394 39520130319: 396 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 397 and socketpair(2). Software, in particular Kerberos, may 398 automatically detect and use these during building. The resulting 399 binaries will not work on older kernels. 400 40120130308: 402 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 403 information, see the respective 20130304 entry). 404 40520130304: 406 Recent commits to callout(9) changed the size of struct callout, 407 so the KBI is probably heavily disturbed. Also, some functions 408 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 409 by macros. Every kernel module using it won't load, so rebuild 410 is requested. 411 412 The ctl device has been re-enabled in GENERIC for i386 and amd64, 413 but does not initialize by default (because of the new CTL_DISABLE 414 option) to save memory. To re-enable it, remove the CTL_DISABLE 415 option from the kernel config file or set kern.cam.ctl.disable=0 416 in /boot/loader.conf. 417 41820130301: 419 The ctl device has been disabled in GENERIC for i386 and amd64. 420 This was done due to the extra memory being allocated at system 421 initialisation time by the ctl driver which was only used if 422 a CAM target device was created. This makes a FreeBSD system 423 unusable on 128MB or less of RAM. 424 42520130208: 426 A new compression method (lz4) has been merged to -HEAD. Please 427 refer to zpool-features(7) for more information. 428 429 Please refer to the "ZFS notes" section of this file for information 430 on upgrading boot ZFS pools. 431 43220130129: 433 A BSD-licensed patch(1) variant has been added and is installed 434 as bsdpatch, being the GNU version the default patch. 435 To inverse the logic and use the BSD-licensed one as default, 436 while having the GNU version installed as gnupatch, rebuild 437 and install world with the WITH_BSD_PATCH knob set. 438 43920130121: 440 Due to the use of the new -l option to install(1) during build 441 and install, you must take care not to directly set the INSTALL 442 make variable in your /etc/make.conf, /etc/src.conf, or on the 443 command line. If you wish to use the -C flag for all installs 444 you may be able to add INSTALL+=-C to /etc/make.conf or 445 /etc/src.conf. 446 44720130118: 448 The install(1) option -M has changed meaning and now takes an 449 argument that is a file or path to append logs to. In the 450 unlikely event that -M was the last option on the command line 451 and the command line contained at least two files and a target 452 directory the first file will have logs appended to it. The -M 453 option served little practical purpose in the last decade so its 454 use is expected to be extremely rare. 455 45620121223: 457 After switching to Clang as the default compiler some users of ZFS 458 on i386 systems started to experience stack overflow kernel panics. 459 Please consider using 'options KSTACK_PAGES=4' in such configurations. 460 46120121222: 462 GEOM_LABEL now mangles label names read from file system metadata. 463 Mangling affect labels containing spaces, non-printable characters, 464 '%' or '"'. Device names in /etc/fstab and other places may need to 465 be updated. 466 46720121217: 468 By default, only the 10 most recent kernel dumps will be saved. To 469 restore the previous behaviour (no limit on the number of kernel dumps 470 stored in the dump directory) add the following line to /etc/rc.conf: 471 472 savecore_flags="" 473 47420121201: 475 With the addition of auditdistd(8), a new auditdistd user is now 476 required during installworld. "mergemaster -p" can be used to 477 add the user prior to installworld, as documented in the handbook. 478 47920121117: 480 The sin6_scope_id member variable in struct sockaddr_in6 is now 481 filled by the kernel before passing the structure to the userland via 482 sysctl or routing socket. This means the KAME-specific embedded scope 483 id in sin6_addr.s6_addr[2] is always cleared in userland application. 484 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 485 __FreeBSD_version is bumped to 1000025. 486 48720121105: 488 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 489 This means that the world and kernel will be compiled with clang 490 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 491 and /usr/bin/cpp. To disable this behavior and revert to building 492 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 493 of current may need to bootstrap WITHOUT_CLANG first if the clang 494 build fails (its compatibility window doesn't extend to the 9 stable 495 branch point). 496 49720121102: 498 The IPFIREWALL_FORWARD kernel option has been removed. Its 499 functionality now turned on by default. 500 50120121023: 502 The ZERO_COPY_SOCKET kernel option has been removed and 503 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 504 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 505 mechanism which is not safe and may result in kernel crashes. 506 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 507 driver supports disposeable external page sized mbuf storage. 508 Proper replacements for both zero-copy mechanisms are under 509 consideration and will eventually lead to complete removal 510 of the two kernel options. 511 51220121023: 513 The IPv4 network stack has been converted to network byte 514 order. The following modules need to be recompiled together 515 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 516 pf(4), ipfw(4), ng_ipfw(4), stf(4). 517 51820121022: 519 Support for non-MPSAFE filesystems was removed from VFS. The 520 VFS_VERSION was bumped, all filesystem modules shall be 521 recompiled. 522 52320121018: 524 All the non-MPSAFE filesystems have been disconnected from 525 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 526 portalfs, smbfs, xfs. 527 52820121016: 529 The interface cloning API and ABI has changed. The following 530 modules need to be recompiled together with kernel: 531 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 532 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 533 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 534 53520121015: 536 The sdhci driver was split in two parts: sdhci (generic SD Host 537 Controller logic) and sdhci_pci (actual hardware driver). 538 No kernel config modifications are required, but if you 539 load sdhc as a module you must switch to sdhci_pci instead. 540 54120121014: 542 Import the FUSE kernel and userland support into base system. 543 54420121013: 545 The GNU sort(1) program has been removed since the BSD-licensed 546 sort(1) has been the default for quite some time and no serious 547 problems have been reported. The corresponding WITH_GNU_SORT 548 knob has also gone. 549 55020121006: 551 The pfil(9) API/ABI for AF_INET family has been changed. Packet 552 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 553 with new kernel. 554 55520121001: 556 The net80211(4) ABI has been changed to allow for improved driver 557 PS-POLL and power-save support. All wireless drivers need to be 558 recompiled to work with the new kernel. 559 56020120913: 561 The random(4) support for the VIA hardware random number 562 generator (`PADLOCK') is no longer enabled unconditionally. 563 Add the padlock_rng device in the custom kernel config if 564 needed. The GENERIC kernels on i386 and amd64 do include the 565 device, so the change only affects the custom kernel 566 configurations. 567 56820120908: 569 The pf(4) packet filter ABI has been changed. pfctl(8) and 570 snmp_pf module need to be recompiled to work with new kernel. 571 57220120828: 573 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 574 to -HEAD. Pools that have empty_bpobj in active state can not be 575 imported read-write with ZFS implementations that do not support 576 this feature. For more information read the zpool-features(5) 577 manual page. 578 57920120727: 580 The sparc64 ZFS loader has been changed to no longer try to auto- 581 detect ZFS providers based on diskN aliases but now requires these 582 to be explicitly listed in the OFW boot-device environment variable. 583 58420120712: 585 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 586 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 587 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 588 58920120712: 590 The following sysctls and tunables have been renamed for consistency 591 with other variables: 592 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 593 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 594 59520120628: 596 The sort utility has been replaced with BSD sort. For now, GNU sort 597 is also available as "gnusort" or the default can be set back to 598 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 599 installed as "bsdsort". 600 60120120611: 602 A new version of ZFS (pool version 5000) has been merged to -HEAD. 603 Starting with this version the old system of ZFS pool versioning 604 is superseded by "feature flags". This concept enables forward 605 compatibility against certain future changes in functionality of ZFS 606 pools. The first read-only compatible "feature flag" for ZFS pools 607 is named "com.delphix:async_destroy". For more information 608 read the new zpool-features(5) manual page. 609 Please refer to the "ZFS notes" section of this file for information 610 on upgrading boot ZFS pools. 611 61220120417: 613 The malloc(3) implementation embedded in libc now uses sources imported 614 as contrib/jemalloc. The most disruptive API change is to 615 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 616 delete it prior to installworld, and optionally re-create it using the 617 new format after rebooting. See malloc.conf(5) for details 618 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 619 NAMESPACE section). 620 62120120328: 622 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 623 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 624 now spelled mips. This is to aid compatibility with third-party 625 software that expects this naming scheme in uname(3). Little-endian 626 settings are unchanged. If you are updating a big-endian mips64 machine 627 from before this change, you may need to set MACHINE_ARCH=mips64 in 628 your environment before the new build system will recognize your machine. 629 63020120306: 631 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 632 platforms. 633 63420120229: 635 Now unix domain sockets behave "as expected" on nullfs(5). Previously 636 nullfs(5) did not pass through all behaviours to the underlying layer, 637 as a result if we bound to a socket on the lower layer we could connect 638 only to the lower path; if we bound to the upper layer we could connect 639 only to the upper path. The new behavior is one can connect to both the 640 lower and the upper paths regardless what layer path one binds to. 641 64220120211: 643 The getifaddrs upgrade path broken with 20111215 has been restored. 644 If you have upgraded in between 20111215 and 20120209 you need to 645 recompile libc again with your kernel. You still need to recompile 646 world to be able to configure CARP but this restriction already 647 comes from 20111215. 648 64920120114: 650 The set_rcvar() function has been removed from /etc/rc.subr. All 651 base and ports rc.d scripts have been updated, so if you have a 652 port installed with a script in /usr/local/etc/rc.d you can either 653 hand-edit the rcvar= line, or reinstall the port. 654 655 An easy way to handle the mass-update of /etc/rc.d: 656 rm /etc/rc.d/* && mergemaster -i 657 65820120109: 659 panic(9) now stops other CPUs in the SMP systems, disables interrupts 660 on the current CPU and prevents other threads from running. 661 This behavior can be reverted using the kern.stop_scheduler_on_panic 662 tunable/sysctl. 663 The new behavior can be incompatible with kern.sync_on_panic. 664 66520111215: 666 The carp(4) facility has been changed significantly. Configuration 667 of the CARP protocol via ifconfig(8) has changed, as well as format 668 of CARP events submitted to devd(8) has changed. See manual pages 669 for more information. The arpbalance feature of carp(4) is currently 670 not supported anymore. 671 672 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 673 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 674 need to be recompiled. 675 67620111122: 677 The acpi_wmi(4) status device /dev/wmistat has been renamed to 678 /dev/wmistat0. 679 68020111108: 681 The option VFS_ALLOW_NONMPSAFE option has been added in order to 682 explicitely support non-MPSAFE filesystems. 683 It is on by default for all supported platform at this present 684 time. 685 68620111101: 687 The broken amd(4) driver has been replaced with esp(4) in the amd64, 688 i386 and pc98 GENERIC kernel configuration files. 689 69020110930: 691 sysinstall has been removed 692 69320110923: 694 The stable/9 branch created in subversion. This corresponds to the 695 RELENG_9 branch in CVS. 696 69720110913: 698 This commit modifies vfs_register() so that it uses a hash 699 calculation to set vfc_typenum, which is enabled by default. 700 The first time a system is booted after this change, the 701 vfc_typenum values will change for all file systems. The 702 main effect of this is a change to the NFS server file handles 703 for file systems that use vfc_typenum in their fsid, such as ZFS. 704 It will, however, prevent vfc_typenum from changing when file 705 systems are loaded in a different order for subsequent reboots. 706 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 707 until you are ready to remount all NFS clients after a reboot. 708 70920110828: 710 Bump the shared library version numbers for libraries that 711 do not use symbol versioning, have changed the ABI compared 712 to stable/8 and which shared library version was not bumped. 713 Done as part of 9.0-RELEASE cycle. 714 71520110815: 716 During the merge of Capsicum features, the fget(9) KPI was modified. 717 This may require the rebuilding of out-of-tree device drivers -- 718 issues have been reported specifically with the nVidia device driver. 719 __FreeBSD_version is bumped to 900041. 720 721 Also, there is a period between 20110811 and 20110814 where the 722 special devices /dev/{stdin,stdout,stderr} did not work correctly. 723 Building world from a kernel during that window may not work. 724 72520110628: 726 The packet filter (pf) code has been updated to OpenBSD 4.5. 727 You need to update userland tools to be in sync with kernel. 728 This update breaks backward compatibility with earlier pfsync(4) 729 versions. Care must be taken when updating redundant firewall setups. 730 73120110608: 732 The following sysctls and tunables are retired on x86 platforms: 733 machdep.hlt_cpus 734 machdep.hlt_logical_cpus 735 The following sysctl is retired: 736 machdep.hyperthreading_allowed 737 The sysctls were supposed to provide a way to dynamically offline and 738 online selected CPUs on x86 platforms, but the implementation has not 739 been reliable especially with SCHED_ULE scheduler. 740 machdep.hyperthreading_allowed tunable is still available to ignore 741 hyperthreading CPUs at OS level. 742 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 743 where X is an APIC ID of a CPU. Be advised, though, that disabling 744 CPUs in non-uniform fashion will result in non-uniform topology and 745 may lead to sub-optimal system performance with SCHED_ULE, which is 746 a default scheduler. 747 74820110607: 749 cpumask_t type is retired and cpuset_t is used in order to describe 750 a mask of CPUs. 751 75220110531: 753 Changes to ifconfig(8) for dynamic address family detection mandate 754 that you are running a kernel of 20110525 or later. Make sure to 755 follow the update procedure to boot a new kernel before installing 756 world. 757 75820110513: 759 Support for sun4v architecture is officially dropped 760 76120110503: 762 Several KPI breaking changes have been committed to the mii(4) layer, 763 the PHY drivers and consequently some Ethernet drivers using mii(4). 764 This means that miibus.ko and the modules of the affected Ethernet 765 drivers need to be recompiled. 766 767 Note to kernel developers: Given that the OUI bit reversion problem 768 was fixed as part of these changes all mii(4) commits related to OUIs, 769 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 770 handling, no longer can be merged verbatim to stable/8 and previous 771 branches. 772 77320110430: 774 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 775 into their kernel configurations along with 'device pci'. 776 77720110427: 778 The default NFS client is now the new NFS client, so fstype "newnfs" 779 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 780 Although mounts via fstype "nfs" will usually work without userland 781 changes, it is recommended that the mount(8) and mount_nfs(8) 782 commands be rebuilt from sources and that a link to mount_nfs called 783 mount_oldnfs be created. The new client is compiled into the 784 kernel with "options NFSCL" and this is needed for diskless root 785 file systems. The GENERIC kernel configs have been changed to use 786 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 787 To use the regular/old client, you can "mount -t oldnfs ...". For 788 a diskless root file system, you must also include a line like: 789 790 vfs.root.mountfrom="oldnfs:" 791 792 in the boot/loader.conf on the root fs on the NFS server to make 793 a diskless root fs use the old client. 794 79520110424: 796 The GENERIC kernels for all architectures now default to the new 797 CAM-based ATA stack. It means that all legacy ATA drivers were 798 removed and replaced by respective CAM drivers. If you are using 799 ATA device names in /etc/fstab or other places, make sure to update 800 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 801 where 'Y's are the sequential numbers starting from zero for each type 802 in order of detection, unless configured otherwise with tunables, 803 see cam(4)). There will be symbolic links created in /dev/ to map 804 old adX devices to the respective adaY. They should provide basic 805 compatibility for file systems mounting in most cases, but they do 806 not support old user-level APIs and do not have respective providers 807 in GEOM. Consider using updated management tools with new device names. 808 809 It is possible to load devices ahci, ata, siis and mvs as modules, 810 but option ATA_CAM should remain in kernel configuration to make ata 811 module work as CAM driver supporting legacy ATA controllers. Device ata 812 still can be used in modular fashion (atacore + ...). Modules atadisk 813 and atapi* are not used and won't affect operation in ATA_CAM mode. 814 Note that to use CAM-based ATA kernel should include CAM devices 815 scbus, pass, da (or explicitly ada), cd and optionally others. All of 816 them are parts of the cam module. 817 818 ataraid(4) functionality is now supported by the RAID GEOM class. 819 To use it you can load geom_raid kernel module and use graid(8) tool 820 for management. Instead of /dev/arX device names, use /dev/raid/rX. 821 822 No kernel config options or code have been removed, so if a problem 823 arises, please report it and optionally revert to the old ATA stack. 824 In order to do it you can remove from the kernel config: 825 options ATA_CAM 826 device ahci 827 device mvs 828 device siis 829 , and instead add back: 830 device atadisk # ATA disk drives 831 device ataraid # ATA RAID drives 832 device atapicd # ATAPI CDROM drives 833 device atapifd # ATAPI floppy drives 834 device atapist # ATAPI tape drives 835 83620110423: 837 The default NFS server has been changed to the new server, which 838 was referred to as the experimental server. If you need to switch 839 back to the old NFS server, you must now put the "-o" option on 840 both the mountd and nfsd commands. This can be done using the 841 mountd_flags and nfs_server_flags rc.conf variables until an 842 update to the rc scripts is committed, which is coming soon. 843 84420110418: 845 The GNU Objective-C runtime library (libobjc), and other Objective-C 846 related components have been removed from the base system. If you 847 require an Objective-C library, please use one of the available ports. 848 84920110331: 850 ath(4) has been split into bus- and device- modules. if_ath contains 851 the HAL, the TX rate control and the network device code. if_ath_pci 852 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 853 contains the AHB glue. Users need to load both if_ath_pci and if_ath 854 in order to use ath on everything else. 855 856 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 857 need to load if_ath and if_ath_pci for ath(4) operation. 858 85920110314: 860 As part of the replacement of sysinstall, the process of building 861 release media has changed significantly. For details, please re-read 862 release(7), which has been updated to reflect the new build process. 863 86420110218: 865 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 866 is the last available version under GPLv2. It brings a number of new 867 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 868 4.1 and SSE 4.2), better support for powerpc64, a number of new 869 directives, and lots of other small improvements. See the ChangeLog 870 file in contrib/binutils for the full details. 871 87220110218: 873 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 874 compliant, and will now use half of hash for authentication. 875 This will break interoperability with all stacks (including all 876 actual FreeBSD versions) who implement 877 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 878 authentication). 879 The only workaround with such peers is to use another HMAC 880 algorithm for IPsec ("phase 2") authentication. 881 88220110207: 883 Remove the uio_yield prototype and symbol. This function has 884 been misnamed since it was introduced and should not be 885 globally exposed with this name. The equivalent functionality 886 is now available using kern_yield(curthread->td_user_pri). 887 The function remains undocumented. 888 88920110112: 890 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 891 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 892 for scalar sysctls is defined but disabled. Code that needs 893 UQUAD to pass the type checking that must compile on older 894 systems where the define is not present can check against 895 __FreeBSD_version >= 900030. 896 897 The system dialog(1) has been replaced with a new version previously 898 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 899 with the previous version, but the libdialog associated with it has 900 a largely incompatible API. As such, the original version of libdialog 901 will be kept temporarily as libodialog, until its base system consumers 902 are replaced or updated. Bump __FreeBSD_version to 900030. 903 90420110103: 905 If you are trying to run make universe on a -stable system, and you get 906 the following warning: 907 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 908 unknown. config(8) likely too old." 909 or something similar to it, then you must upgrade your -stable system 910 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 911 stable/8) or build the config from the latest stable/8 branch and 912 install it on your system. 913 914 Prior to this date, building a current universe on 8-stable system from 915 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 916 error in the first kernel build phase. A new config on those old 917 systems will fix that problem for older versions of -current. 918 91920101228: 920 The TCP stack has been modified to allow Khelp modules to interact with 921 it via helper hook points and store per-connection data in the TCP 922 control block. Bump __FreeBSD_version to 900029. User space tools that 923 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 924 be recompiled. 925 92620101114: 927 Generic IEEE 802.3 annex 31B full duplex flow control support has been 928 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 929 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 930 to take advantage of it instead of using custom implementations. This 931 means that these drivers now no longer unconditionally advertise 932 support for flow control but only do so if flow control is a selected 933 media option. This was implemented in the generic support that way in 934 order to allow flow control to be switched on and off via ifconfig(8) 935 with the PHY specific default to typically off in order to protect 936 from unwanted effects. Consequently, if you used flow control with 937 one of the above mentioned drivers you now need to explicitly enable 938 it, for example via: 939 ifconfig bge0 media auto mediaopt flowcontrol 940 941 Along with the above mentioned changes generic support for setting 942 1000baseT master mode also has been added and brgphy(4), ciphy(4), 943 e1000phy(4) as well as ip1000phy(4) have been converted to take 944 advantage of it. This means that these drivers now no longer take the 945 link0 parameter for selecting master mode but the master media option 946 has to be used instead, for example like in the following: 947 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 948 949 Selection of master mode now is also available with all other PHY 950 drivers supporting 1000baseT. 951 95220101111: 953 The TCP stack has received a significant update to add support for 954 modularised congestion control and generally improve the clarity of 955 congestion control decisions. Bump __FreeBSD_version to 900025. User 956 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 957 sockstat) need to be recompiled. 958 95920101002: 960 The man(1) utility has been replaced by a new version that no longer 961 uses /etc/manpath.config. Please consult man.conf(5) for how to 962 migrate local entries to the new format. 963 96420100928: 965 The copyright strings printed by login(1) and sshd(8) at the time of a 966 new connection have been removed to follow other operating systems and 967 upstream sshd. 968 96920100915: 970 A workaround for a fixed ld bug has been removed in kernel code, 971 so make sure that your system ld is built from sources after 972 revision 210245 from 2010-07-19 (r211583 if building head kernel 973 on stable/8, r211584 for stable/7; both from 2010-08-21). 974 A symptom of incorrect ld version is different addresses for 975 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 976 97720100913: 978 The $ipv6_prefer variable in rc.conf(5) has been split into 979 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 980 981 The $ip6addrctl_policy is a variable to choose a pre-defined 982 address selection policy set by ip6addrctl(8). A value 983 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 984 default is "AUTO". 985 986 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 987 flag (see an entry of 20090926) is set on an interface with no 988 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 989 security reason. If you want IPv6 link-local address on all 990 interfaces by default, set this to "YES". 991 992 The old ipv6_prefer="YES" is equivalent to 993 ipv6_activate_all_interfaces="YES" and 994 ip6addrctl_policy="ipv6_prefer". 995 99620100913: 997 DTrace has grown support for userland tracing. Due to this, DTrace is 998 now i386 and amd64 only. 999 dtruss(1) is now installed by default on those systems and a new 1000 kernel module is needed for userland tracing: fasttrap. 1001 No changes to your kernel config file are necessary to enable 1002 userland tracing, but you might consider adding 'STRIP=' and 1003 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1004 to have informative userland stack traces in DTrace (ustack). 1005 100620100725: 1007 The acpi_aiboost(4) driver has been removed in favor of the new 1008 aibs(4) driver. You should update your kernel configuration file. 1009 101020100722: 1011 BSD grep has been imported to the base system and it is built by 1012 default. It is completely BSD licensed, highly GNU-compatible, uses 1013 less memory than its GNU counterpart and has a small codebase. 1014 However, it is slower than its GNU counterpart, which is mostly 1015 noticeable for larger searches, for smaller ones it is measurable 1016 but not significant. The reason is complex, the most important factor 1017 is that we lack a modern and efficient regex library and GNU 1018 overcomes this by optimizing the searches internally. Future work 1019 on improving the regex performance is planned, for the meantime, 1020 users that need better performance, can build GNU grep instead by 1021 setting the WITH_GNU_GREP knob. 1022 102320100713: 1024 Due to the import of powerpc64 support, all existing powerpc kernel 1025 configuration files must be updated with a machine directive like this: 1026 machine powerpc powerpc 1027 1028 In addition, an updated config(8) is required to build powerpc kernels 1029 after this change. 1030 103120100713: 1032 A new version of ZFS (version 15) has been merged to -HEAD. 1033 This version uses a python library for the following subcommands: 1034 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1035 For full functionality of these commands the following port must 1036 be installed: sysutils/py-zfs 1037 103820100429: 1039 'vm_page's are now hashed by physical address to an array of mutexes. 1040 Currently this is only used to serialize access to hold_count. Over 1041 time the page queue mutex will be peeled away. This changes the size 1042 of pmap on every architecture. And requires all callers of vm_page_hold 1043 and vm_page_unhold to be updated. 1044 104520100402: 1046 WITH_CTF can now be specified in src.conf (not recommended, there 1047 are some problems with static executables), make.conf (would also 1048 affect ports which do not use GNU make and do not override the 1049 compile targets) or in the kernel config (via "makeoptions 1050 WITH_CTF=yes"). 1051 When WITH_CTF was specified there before this was silently ignored, 1052 so make sure that WITH_CTF is not used in places which could lead 1053 to unwanted behavior. 1054 105520100311: 1056 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1057 to allow 32-bit compatibility on non-x86 platforms. All kernel 1058 configurations on amd64 and ia64 platforms using these options must 1059 be modified accordingly. 1060 106120100113: 1062 The utmp user accounting database has been replaced with utmpx, 1063 the user accounting interface standardized by POSIX. 1064 Unfortunately the semantics of utmp and utmpx don't match, 1065 making it practically impossible to support both interfaces. 1066 The user accounting database is used by tools like finger(1), 1067 last(1), talk(1), w(1) and ac(8). 1068 1069 All applications in the base system use utmpx. This means only 1070 local binaries (e.g. from the ports tree) may still use these 1071 utmp database files. These applications must be rebuilt to make 1072 use of utmpx. 1073 1074 After the system has been upgraded, it is safe to remove the old 1075 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1076 assuming their contents is of no importance anymore. Old wtmp 1077 databases can only be used by last(1) and ac(8) after they have 1078 been converted to the new format using wtmpcvt(1). 1079 108020100108: 1081 Introduce the kernel thread "deadlock resolver" (which can be enabled 1082 via the DEADLKRES option, see NOTES for more details) and the 1083 sleepq_type() function for sleepqueues. 1084 108520091202: 1086 The rc.firewall and rc.firewall6 were unified, and 1087 rc.firewall6 and rc.d/ip6fw were removed. 1088 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1089 variables are obsoleted. Instead, the following new rc 1090 variables are added to rc.d/ipfw: 1091 1092 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1093 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1094 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1095 1096 The meanings correspond to the relevant IPv4 variables. 1097 109820091125: 1099 8.0-RELEASE. 1100 110120091113: 1102 The default terminal emulation for syscons(4) has been changed 1103 from cons25 to xterm on all platforms except pc98. This means 1104 that the /etc/ttys file needs to be updated to ensure correct 1105 operation of applications on the console. 1106 1107 The terminal emulation style can be toggled per window by using 1108 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1109 options can be used to change the compile-time default back to 1110 cons25. 1111 1112 To prevent graphical artifacts, make sure the TERM environment 1113 variable is set to match the terminal emulation that is being 1114 performed by syscons(4). 1115 111620091109: 1117 The layout of the structure ieee80211req_scan_result has changed. 1118 Applications that require wireless scan results (e.g. ifconfig(8)) 1119 from net80211 need to be recompiled. 1120 1121 Applications such as wpa_supplicant(8) may require a full world 1122 build without using NO_CLEAN in order to get synchronized with the 1123 new structure. 1124 112520091025: 1126 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1127 There's one kernel module for each firmware. Adding "device iwnfw" 1128 to the kernel configuration file means including all three firmware 1129 images inside the kernel. If you want to include just the one for 1130 your wireless card, use the devices iwn4965fw, iwn5000fw or 1131 iwn5150fw. 1132 113320090926: 1134 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1135 into rc.d/netif. The changes are the following: 1136 1137 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1138 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1139 Note that both variables need the "inet6" keyword at the head. 1140 1141 Do not set $ipv6_network_interfaces manually if you do not 1142 understand what you are doing. It is not needed in most cases. 1143 1144 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1145 they are obsolete. 1146 1147 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1148 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1149 1150 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1151 all configured interfaces have "inet6 accept_rtadv" in the 1152 $ifconfig_IF_ipv6. These are for backward compatibility. 1153 1154 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1155 functionality of interfaces with no corresponding 1156 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1157 and the default address selection policy of ip6addrctl(8) 1158 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1159 Note that if you want to configure IPv6 functionality on the 1160 disabled interfaces after boot, first you need to clear the flag by 1161 using ifconfig(8) like: 1162 1163 ifconfig em0 inet6 -ifdisabled 1164 1165 If YES, the default address selection policy is set as 1166 IPv6-preferred. 1167 1168 The default value of $ipv6_prefer is NO. 1169 1170 4. If your system need to receive Router Advertisement messages, 1171 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1172 scripts automatically invoke rtsol(8) when the interface becomes 1173 UP. The Router Advertisement messages are used for SLAAC 1174 (State-Less Address AutoConfiguration). 1175 117620090922: 1177 802.11s D3.03 support was committed. This is incompatible with the 1178 previous code, which was based on D3.0. 1179 118020090912: 1181 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1182 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1183 control whether accepting Router Advertisement messages or not. 1184 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1185 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1186 The ifconfig(8) utility now supports these flags. 1187 118820090910: 1189 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1190 mount(8) and -a option for df(1) to see them. 1191 119220090825: 1193 The old tunable hw.bus.devctl_disable has been superseded by 1194 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1195 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1196 is 1000. 1197 119820090813: 1199 Remove the option STOP_NMI. The default action is now to use NMI only 1200 for KDB via the newly introduced function stop_cpus_hard() and 1201 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1202 120320090803: 1204 The stable/8 branch created in subversion. This corresponds to the 1205 RELENG_8 branch in CVS. 1206 120720090719: 1208 Bump the shared library version numbers for all libraries that do not 1209 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1210 __FreeBSD_version to 800105. 1211 121220090714: 1213 Due to changes in the implementation of virtual network stack support, 1214 all network-related kernel modules must be recompiled. As this change 1215 breaks the ABI, bump __FreeBSD_version to 800104. 1216 121720090713: 1218 The TOE interface to the TCP syncache has been modified to remove 1219 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1220 The cxgb driver is the only TOE consumer affected by this change, and 1221 needs to be recompiled along with the kernel. As this change breaks 1222 the ABI, bump __FreeBSD_version to 800103. 1223 122420090712: 1225 Padding has been added to struct tcpcb, sackhint and tcpstat in 1226 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1227 maintaining the ABI. However, this change breaks the ABI, so bump 1228 __FreeBSD_version to 800102. User space tools that rely on the size of 1229 any of these structs (e.g. sockstat) need to be recompiled. 1230 123120090630: 1232 The NFS_LEGACYRPC option has been removed along with the old kernel 1233 RPC implementation that this option selected. Kernel configurations 1234 may need to be adjusted. 1235 123620090629: 1237 The network interface device nodes at /dev/net/<interface> have been 1238 removed. All ioctl operations can be performed the normal way using 1239 routing sockets. The kqueue functionality can generally be replaced 1240 with routing sockets. 1241 124220090628: 1243 The documentation from the FreeBSD Documentation Project (Handbook, 1244 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1245 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1246 124720090624: 1248 The ABI of various structures related to the SYSV IPC API have been 1249 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1250 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1251 800100. 1252 125320090622: 1254 Layout of struct vnet has changed as routing related variables were 1255 moved to their own Vimage module. Modules need to be recompiled. Bump 1256 __FreeBSD_version to 800099. 1257 125820090619: 1259 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1260 respectively. As long as no more than 16 groups per process are used, 1261 no changes should be visible. When more than 16 groups are used, old 1262 binaries may fail if they call getgroups() or getgrouplist() with 1263 statically sized storage. Recompiling will work around this, but 1264 applications should be modified to use dynamically allocated storage 1265 for group arrays as POSIX.1-2008 does not cap an implementation's 1266 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1267 1268 NFS and portalfs mounts may also be affected as the list of groups is 1269 truncated to 16. Users of NFS who use more than 16 groups, should 1270 take care that negative group permissions are not used on the exported 1271 file systems as they will not be reliable unless a GSSAPI based 1272 authentication method is used. 1273 127420090616: 1275 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1276 option compiles in the support for adaptive spinning for lockmgrs 1277 which want to enable it. The lockinit() function now accepts the flag 1278 LK_ADAPTIVE in order to make the lock object subject to adaptive 1279 spinning when both held in write and read mode. 1280 128120090613: 1282 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1283 changed. User applications that use this ioctl need to be rebuilt. 1284 128520090611: 1286 The layout of struct thread has changed. Kernel and modules need to 1287 be rebuilt. 1288 128920090608: 1290 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1291 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1292 129320090602: 1294 window(1) has been removed from the base system. It can now be 1295 installed from ports. The port is called misc/window. 1296 129720090601: 1298 The way we are storing and accessing `routing table' entries has 1299 changed. Programs reading the FIB, like netstat, need to be 1300 re-compiled. 1301 130220090601: 1303 A new netisr implementation has been added for FreeBSD 8. Network 1304 file system modules, such as igmp, ipdivert, and others, should be 1305 rebuilt. 1306 Bump __FreeBSD_version to 800096. 1307 130820090530: 1309 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1310 more valid. 1311 131220090530: 1313 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1314 Bump __FreeBSD_version to 800094. 1315 131620090529: 1317 Add mnt_xflag field to 'struct mount'. File system modules need to be 1318 rebuilt. 1319 Bump __FreeBSD_version to 800093. 1320 132120090528: 1322 The compiling option ADAPTIVE_SX has been retired while it has been 1323 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1324 The KPI for sx_init_flags() changes as accepting flags: 1325 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1326 been introduced in order to handle the reversed logic. 1327 Bump __FreeBSD_version to 800092. 1328 132920090527: 1330 Add support for hierarchical jails. Remove global securelevel. 1331 Bump __FreeBSD_version to 800091. 1332 133320090523: 1334 The layout of struct vnet_net has changed, therefore modules 1335 need to be rebuilt. 1336 Bump __FreeBSD_version to 800090. 1337 133820090523: 1339 The newly imported zic(8) produces a new format in the output. Please 1340 run tzsetup(8) to install the newly created data to /etc/localtime. 1341 134220090520: 1343 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1344 hw.usb.* and is now consistent again with previous releases. 1345 134620090520: 1347 802.11 monitor mode support was revised and driver api's were changed. 1348 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1349 of DLT_IEEE802_11. No user-visible data structures were changed but 1350 applications that use DLT_IEEE802_11 may require changes. 1351 Bump __FreeBSD_version to 800088. 1352 135320090430: 1354 The layout of the following structs has changed: sysctl_oid, 1355 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1356 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1357 panics may be experienced. World rebuild is required for 1358 correctly checking networking state from userland. 1359 Bump __FreeBSD_version to 800085. 1360 136120090429: 1362 MLDv2 and Source-Specific Multicast (SSM) have been merged 1363 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1364 The implementation of SSM within FreeBSD's IPv6 stack closely 1365 follows the IPv4 implementation. 1366 1367 For kernel developers: 1368 1369 * The most important changes are that the ip6_output() and 1370 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1371 and this lock has been downgraded to a non-recursive mutex. 1372 1373 * As with the changes to the IPv4 stack to support SSM, filtering 1374 of inbound multicast traffic must now be performed by transport 1375 protocols within the IPv6 stack. This does not apply to TCP and 1376 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1377 1378 * The KPIs used by IPv6 multicast are similar to those used by 1379 the IPv4 stack, with the following differences: 1380 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1381 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1382 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1383 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1384 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1385 for MLDv1 have an additional 'timer' argument which is used to 1386 jitter the initial membership report for the solicited-node 1387 multicast membership on-link. 1388 * This is not strictly needed for MLDv2, which already jitters 1389 its report transmissions. However, the 'timer' argument is 1390 preserved in case MLDv1 is active on the interface. 1391 1392 * The KAME linked-list based IPv6 membership implementation has 1393 been refactored to use a vector similar to that used by the IPv4 1394 stack. 1395 Code which maintains a list of its own multicast memberships 1396 internally, e.g. carp, has been updated to reflect the new 1397 semantics. 1398 1399 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1400 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1401 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1402 implementation constraint which needs to be addressed in HEAD. 1403 1404 For application developers: 1405 1406 * The changes are broadly similar to those made for the IPv4 1407 stack. 1408 1409 * The use of IPv4 and IPv6 multicast socket options on the same 1410 socket, using mapped addresses, HAS NOT been tested or supported. 1411 1412 * There are a number of issues with the implementation of various 1413 IPv6 multicast APIs which need to be resolved in the API surface 1414 before the implementation is fully compatible with KAME userland 1415 use, and these are mostly to do with interface index treatment. 1416 1417 * The literature available discusses the use of either the delta / ASM 1418 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1419 using setsourcefilter(3)/getsourcefilter(3). For more information 1420 please refer to RFC 3768, 'Socket Interface Extensions for 1421 Multicast Source Filters'. 1422 1423 * Applications which use the published RFC 3678 APIs should be fine. 1424 1425 For systems administrators: 1426 1427 * The mtest(8) utility has been refactored to support IPv6, in 1428 addition to IPv4. Interface addresses are no longer accepted 1429 as arguments, their names must be used instead. The utility 1430 will map the interface name to its first IPv4 address as 1431 returned by getifaddrs(3). 1432 1433 * The ifmcstat(8) utility has also been updated to print the MLDv2 1434 endpoint state and source filter lists via sysctl(3). 1435 1436 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1437 loopback of IPv6 multicast datagrams by default; it defaults to 1 1438 to preserve the existing behaviour. Disabling multicast loopback is 1439 recommended for optimal system performance. 1440 1441 * The IPv6 MROUTING code has been changed to examine this sysctl 1442 instead of attempting to perform a group lookup before looping 1443 back forwarded datagrams. 1444 1445 Bump __FreeBSD_version to 800084. 1446 144720090422: 1448 Implement low-level Bluetooth HCI API. 1449 Bump __FreeBSD_version to 800083. 1450 145120090419: 1452 The layout of struct malloc_type, used by modules to register new 1453 memory allocation types, has changed. Most modules will need to 1454 be rebuilt or panics may be experienced. 1455 Bump __FreeBSD_version to 800081. 1456 145720090415: 1458 Anticipate overflowing inp_flags - add inp_flags2. 1459 This changes most offsets in inpcb, so checking v4 connection 1460 state will require a world rebuild. 1461 Bump __FreeBSD_version to 800080. 1462 146320090415: 1464 Add an llentry to struct route and struct route_in6. Modules 1465 embedding a struct route will need to be recompiled. 1466 Bump __FreeBSD_version to 800079. 1467 146820090414: 1469 The size of rt_metrics_lite and by extension rtentry has changed. 1470 Networking administration apps will need to be recompiled. 1471 The route command now supports show as an alias for get, weighting 1472 of routes, sticky and nostick flags to alter the behavior of stateful 1473 load balancing. 1474 Bump __FreeBSD_version to 800078. 1475 147620090408: 1477 Do not use Giant for kbdmux(4) locking. This is wrong and 1478 apparently causing more problems than it solves. This will 1479 re-open the issue where interrupt handlers may race with 1480 kbdmux(4) in polling mode. Typical symptoms include (but 1481 not limited to) duplicated and/or missing characters when 1482 low level console functions (such as gets) are used while 1483 interrupts are enabled (for example geli password prompt, 1484 mountroot prompt etc.). Disabling kbdmux(4) may help. 1485 148620090407: 1487 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1488 kernel modules referencing any of the above need to be recompiled. 1489 Bump __FreeBSD_version to 800075. 1490 149120090320: 1492 GEOM_PART has become the default partition slicer for storage devices, 1493 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1494 introduces some changes: 1495 1496 MSDOS/EBR: the devices created from MSDOS extended partition entries 1497 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1498 to devices with offset-based names. fstabs may need to be modified. 1499 1500 BSD: the "geometry does not match label" warning is harmless in most 1501 cases but it points to problems in file system misalignment with 1502 disk geometry. The "c" partition is now implicit, covers the whole 1503 top-level drive and cannot be (mis)used by users. 1504 1505 General: Kernel dumps are now not allowed to be written to devices 1506 whose partition types indicate they are meant to be used for file 1507 systems (or, in case of MSDOS partitions, as something else than 1508 the "386BSD" type). 1509 1510 Most of these changes date approximately from 200812. 1511 151220090319: 1513 The uscanner(4) driver has been removed from the kernel. This follows 1514 Linux removing theirs in 2.6 and making libusb the default interface 1515 (supported by sane). 1516 151720090319: 1518 The multicast forwarding code has been cleaned up. netstat(1) 1519 only relies on KVM now for printing bandwidth upcall meters. 1520 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1521 ip6_mroute_mod respectively. The config(5) options for statically 1522 compiling this code remain the same, i.e. 'options MROUTING'. 1523 152420090315: 1525 Support for the IFF_NEEDSGIANT network interface flag has been 1526 removed, which means that non-MPSAFE network device drivers are no 1527 longer supported. In particular, if_ar, if_sr, and network device 1528 drivers from the old (legacy) USB stack can no longer be built or 1529 used. 1530 153120090313: 1532 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1533 a bunch of new language catalog files have also been added. 1534 This means that some common libc messages are now localized and 1535 they depend on the LC_MESSAGES environmental variable. 1536 153720090313: 1538 The k8temp(4) driver has been renamed to amdtemp(4) since 1539 support for Family 10 and Family 11 CPU families was added. 1540 154120090309: 1542 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1543 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1544 1545 For kernel developers, the most important changes are that the 1546 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1547 and this lock has been downgraded to a non-recursive mutex. 1548 1549 Transport protocols (UDP, Raw IP) are now responsible for filtering 1550 inbound multicast traffic according to group membership and source 1551 filters. The imo_multicast_filter() KPI exists for this purpose. 1552 Transports which do not use multicast (SCTP, TCP) already reject 1553 multicast by default. Forwarding and receive performance may improve 1554 as a mutex acquisition is no longer needed in the ip_input() 1555 low-level input path. in_addmulti() and in_delmulti() are shimmed 1556 to new KPIs which exist to support SSM in-kernel. 1557 1558 For application developers, it is recommended that loopback of 1559 multicast datagrams be disabled for best performance, as this 1560 will still cause the lock to be taken for each looped-back 1561 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1562 be tuned to 0 to disable loopback by default; it defaults to 1 1563 to preserve the existing behaviour. 1564 1565 For systems administrators, to obtain best performance with 1566 multicast reception and multiple groups, it is always recommended 1567 that a card with a suitably precise hash filter is used. Hash 1568 collisions will still result in the lock being taken within the 1569 transport protocol input path to check group membership. 1570 1571 If deploying FreeBSD in an environment with IGMP snooping switches, 1572 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1573 enabled; this forces 224.0.0.0/24 group membership to be announced 1574 via IGMP. 1575 1576 The size of 'struct igmpstat' has changed; netstat needs to be 1577 recompiled to reflect this. 1578 Bump __FreeBSD_version to 800070. 1579 158020090309: 1581 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1582 updated to use it. This requires a buildworld/installworld in order to 1583 update the library and dependencies (usbconfig, etc). Its advisable to 1584 rebuild all ports which uses libusb. More specific directions are given 1585 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1586 libusb are no longer required and can be removed. 1587 158820090302: 1589 A workaround is committed to allow the creation of System V shared 1590 memory segment of size > 2 GB on the 64-bit architectures. 1591 Due to a limitation of the existing ABI, the shm_segsz member 1592 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1593 wrong for large segments. Note that limits must be explicitly 1594 raised to allow such segments to be created. 1595 159620090301: 1597 The layout of struct ifnet has changed, requiring a rebuild of all 1598 network device driver modules. 1599 160020090227: 1601 The /dev handling for the new USB stack has changed, a 1602 buildworld/installworld is required for libusb20. 1603 160420090223: 1605 The new USB2 stack has now been permanently moved in and all kernel and 1606 module names reverted to their previous values (eg, usb, ehci, ohci, 1607 ums, ...). The old usb stack can be compiled in by prefixing the name 1608 with the letter 'o', the old usb modules have been removed. 1609 Updating entry 20090216 for xorg and 20090215 for libmap may still 1610 apply. 1611 161220090217: 1613 The rc.conf(5) option if_up_delay has been renamed to 1614 defaultroute_delay to better reflect its purpose. If you have 1615 customized this setting in /etc/rc.conf you need to update it to 1616 use the new name. 1617 161820090216: 1619 xorg 7.4 wants to configure its input devices via hald which does not 1620 yet work with USB2. If the keyboard/mouse does not work in xorg then 1621 add 1622 Option "AllowEmptyInput" "off" 1623 to your ServerLayout section. This will cause X to use the configured 1624 kbd and mouse sections from your xorg.conf. 1625 162620090215: 1627 The GENERIC kernels for all architectures now default to the new USB2 1628 stack. No kernel config options or code have been removed so if a 1629 problem arises please report it and optionally revert to the old USB 1630 stack. If you are loading USB kernel modules or have a custom kernel 1631 that includes GENERIC then ensure that usb names are also changed over, 1632 eg uftdi -> usb2_serial_ftdi. 1633 1634 Older programs linked against the ports libusb 0.1 need to be 1635 redirected to the new stack's libusb20. /etc/libmap.conf can 1636 be used for this: 1637 # Map old usb library to new one for usb2 stack 1638 libusb-0.1.so.8 libusb20.so.1 1639 164020090209: 1641 All USB ethernet devices now attach as interfaces under the name ueN 1642 (eg. ue0). This is to provide a predictable name as vendors often 1643 change usb chipsets in a product without notice. 1644 164520090203: 1646 The ichsmb(4) driver has been changed to require SMBus slave 1647 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1648 All of the other SMBus controller drivers require left-justified 1649 slave addresses, so this change makes all the drivers provide the 1650 same interface. 1651 165220090201: 1653 INET6 statistics (struct ip6stat) was updated. 1654 netstat(1) needs to be recompiled. 1655 165620090119: 1657 NTFS has been removed from GENERIC kernel on amd64 to match 1658 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1659 will load ntfs.ko module automatically when NTFS support is 1660 actually needed, unless ntfs.ko is not installed or security 1661 level prohibits loading kernel modules. If either is the case, 1662 "options NTFS" has to be added into kernel config. 1663 166420090115: 1665 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1666 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1667 800061. User space tools that rely on the size of struct tcpcb in 1668 tcp_var.h (e.g. sockstat) need to be recompiled. 1669 167020081225: 1671 ng_tty(4) module updated to match the new TTY subsystem. 1672 Due to API change, user-level applications must be updated. 1673 New API support added to mpd5 CVS and expected to be present 1674 in next mpd5.3 release. 1675 167620081219: 1677 With __FreeBSD_version 800060 the makefs tool is part of 1678 the base system (it was a port). 1679 168020081216: 1681 The afdata and ifnet locks have been changed from mutexes to 1682 rwlocks, network modules will need to be re-compiled. 1683 168420081214: 1685 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1686 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1687 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1688 architecture and 40 bytes on 64-bit architecture. The userland 1689 applications "arp" and "ndp" have been updated accordingly. 1690 The output from "netstat -r" shows only routing entries and 1691 none of the L2 information. 1692 169320081130: 1694 __FreeBSD_version 800057 marks the switchover from the 1695 binary ath hal to source code. Users must add the line: 1696 1697 options AH_SUPPORT_AR5416 1698 1699 to their kernel config files when specifying: 1700 1701 device ath_hal 1702 1703 The ath_hal module no longer exists; the code is now compiled 1704 together with the driver in the ath module. It is now 1705 possible to tailor chip support (i.e. reduce the set of chips 1706 and thereby the code size); consult ath_hal(4) for details. 1707 170820081121: 1709 __FreeBSD_version 800054 adds memory barriers to 1710 <machine/atomic.h>, new interfaces to ifnet to facilitate 1711 multiple hardware transmit queues for cards that support 1712 them, and a lock-less ring-buffer implementation to 1713 enable drivers to more efficiently manage queueing of 1714 packets. 1715 171620081117: 1717 A new version of ZFS (version 13) has been merged to -HEAD. 1718 This version has zpool attribute "listsnapshots" off by 1719 default, which means "zfs list" does not show snapshots, 1720 and is the same as Solaris behavior. 1721 172220081028: 1723 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1724 172520081009: 1726 The uhci, ohci, ehci and slhci USB Host controller drivers have 1727 been put into separate modules. If you load the usb module 1728 separately through loader.conf you will need to load the 1729 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1730 controller add the following to loader.conf: 1731 1732 uhci_load="YES" 1733 ehci_load="YES" 1734 173520081009: 1736 The ABI used by the PMC toolset has changed. Please keep 1737 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1738 sync. 1739 174020081009: 1741 atapci kernel module now includes only generic PCI ATA 1742 driver. AHCI driver moved to ataahci kernel module. 1743 All vendor-specific code moved into separate kernel modules: 1744 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1745 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1746 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1747 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1748 174920080820: 1750 The TTY subsystem of the kernel has been replaced by a new 1751 implementation, which provides better scalability and an 1752 improved driver model. Most common drivers have been migrated to 1753 the new TTY subsystem, while others have not. The following 1754 drivers have not yet been ported to the new TTY layer: 1755 1756 PCI/ISA: 1757 cy, digi, rc, rp, sio 1758 1759 USB: 1760 ubser, ucycom 1761 1762 Line disciplines: 1763 ng_h4, ng_tty, ppp, sl, snp 1764 1765 Adding these drivers to your kernel configuration file shall 1766 cause compilation to fail. 1767 176820080818: 1769 ntpd has been upgraded to 4.2.4p5. 1770 177120080801: 1772 OpenSSH has been upgraded to 5.1p1. 1773 1774 For many years, FreeBSD's version of OpenSSH preferred DSA 1775 over RSA for host and user authentication keys. With this 1776 upgrade, we've switched to the vendor's default of RSA over 1777 DSA. This may cause upgraded clients to warn about unknown 1778 host keys even for previously known hosts. Users should 1779 follow the usual procedure for verifying host keys before 1780 accepting the RSA key. 1781 1782 This can be circumvented by setting the "HostKeyAlgorithms" 1783 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1784 command line. 1785 1786 Please note that the sequence of keys offered for 1787 authentication has been changed as well. You may want to 1788 specify IdentityFile in a different order to revert this 1789 behavior. 1790 179120080713: 1792 The sio(4) driver has been removed from the i386 and amd64 1793 kernel configuration files. This means uart(4) is now the 1794 default serial port driver on those platforms as well. 1795 1796 To prevent collisions with the sio(4) driver, the uart(4) driver 1797 uses different names for its device nodes. This means the 1798 onboard serial port will now most likely be called "ttyu0" 1799 instead of "ttyd0". You may need to reconfigure applications to 1800 use the new device names. 1801 1802 When using the serial port as a boot console, be sure to update 1803 /boot/device.hints and /etc/ttys before booting the new kernel. 1804 If you forget to do so, you can still manually specify the hints 1805 at the loader prompt: 1806 1807 set hint.uart.0.at="isa" 1808 set hint.uart.0.port="0x3F8" 1809 set hint.uart.0.flags="0x10" 1810 set hint.uart.0.irq="4" 1811 boot -s 1812 181320080609: 1814 The gpt(8) utility has been removed. Use gpart(8) to partition 1815 disks instead. 1816 181720080603: 1818 The version that Linuxulator emulates was changed from 2.4.2 1819 to 2.6.16. If you experience any problems with Linux binaries 1820 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1821 if it fixes the problem contact emulation mailing list. 1822 182320080525: 1824 ISDN4BSD (I4B) was removed from the src tree. You may need to 1825 update a your kernel configuration and remove relevant entries. 1826 182720080509: 1828 I have checked in code to support multiple routing tables. 1829 See the man pages setfib(1) and setfib(2). 1830 This is a hopefully backwards compatible version, 1831 but to make use of it you need to compile your kernel 1832 with options ROUTETABLES=2 (or more up to 16). 1833 183420080420: 1835 The 802.11 wireless support was redone to enable multi-bss 1836 operation on devices that are capable. The underlying device 1837 is no longer used directly but instead wlanX devices are 1838 cloned with ifconfig. This requires changes to rc.conf files. 1839 For example, change: 1840 ifconfig_ath0="WPA DHCP" 1841 to 1842 wlans_ath0=wlan0 1843 ifconfig_wlan0="WPA DHCP" 1844 see rc.conf(5) for more details. In addition, mergemaster of 1845 /etc/rc.d is highly recommended. Simultaneous update of userland 1846 and kernel wouldn't hurt either. 1847 1848 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1849 modules were merged into the base wlan module. All references 1850 to these modules (e.g. in kernel config files) must be removed. 1851 185220080408: 1853 psm(4) has gained write(2) support in native operation level. 1854 Arbitrary commands can be written to /dev/psm%d and status can 1855 be read back from it. Therefore, an application is responsible 1856 for status validation and error recovery. It is a no-op in 1857 other operation levels. 1858 185920080312: 1860 Support for KSE threading has been removed from the kernel. To 1861 run legacy applications linked against KSE libmap.conf may 1862 be used. The following libmap.conf may be used to ensure 1863 compatibility with any prior release: 1864 1865 libpthread.so.1 libthr.so.1 1866 libpthread.so.2 libthr.so.2 1867 libkse.so.3 libthr.so.3 1868 186920080301: 1870 The layout of struct vmspace has changed. This affects libkvm 1871 and any executables that link against libkvm and use the 1872 kvm_getprocs() function. In particular, but not exclusively, 1873 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1874 The effects are minimal, but it's advisable to upgrade world 1875 nonetheless. 1876 187720080229: 1878 The latest em driver no longer has support in it for the 1879 82575 adapter, this is now moved to the igb driver. The 1880 split was done to make new features that are incompatible 1881 with older hardware easier to do. 1882 188320080220: 1884 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1885 likewise the kernel option is now GEOM_LINUX_LVM. 1886 188720080211: 1888 The default NFS mount mode has changed from UDP to TCP for 1889 increased reliability. If you rely on (insecurely) NFS 1890 mounting across a firewall you may need to update your 1891 firewall rules. 1892 189320080208: 1894 Belatedly note the addition of m_collapse for compacting 1895 mbuf chains. 1896 189720080126: 1898 The fts(3) structures have been changed to use adequate 1899 integer types for their members and so to be able to cope 1900 with huge file trees. The old fts(3) ABI is preserved 1901 through symbol versioning in libc, so third-party binaries 1902 using fts(3) should still work, although they will not take 1903 advantage of the extended types. At the same time, some 1904 third-party software might fail to build after this change 1905 due to unportable assumptions made in its source code about 1906 fts(3) structure members. Such software should be fixed 1907 by its vendor or, in the worst case, in the ports tree. 1908 FreeBSD_version 800015 marks this change for the unlikely 1909 case that a portable fix is impossible. 1910 191120080123: 1912 To upgrade to -current after this date, you must be running 1913 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1914 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1915 191620071128: 1917 The ADAPTIVE_GIANT kernel option has been retired because its 1918 functionality is the default now. 1919 192020071118: 1921 The AT keyboard emulation of sunkbd(4) has been turned on 1922 by default. In order to make the special symbols of the Sun 1923 keyboards driven by sunkbd(4) work under X these now have 1924 to be configured the same way as Sun USB keyboards driven 1925 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1926 1927 Option "XkbLayout" "us" 1928 Option "XkbRules" "xorg" 1929 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1930 193120071024: 1932 It has been decided that it is desirable to provide ABI 1933 backwards compatibility to the FreeBSD 4/5/6 versions of the 1934 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1935 broken with the introduction of PCI domain support (see the 1936 20070930 entry). Unfortunately, this required the ABI of 1937 PCIOCGETCONF to be broken again in order to be able to 1938 provide backwards compatibility to the old version of that 1939 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1940 again. As for prominent ports this affects neither pciutils 1941 nor xorg-server this time, the hal port needs to be rebuilt 1942 however. 1943 194420071020: 1945 The misnamed kthread_create() and friends have been renamed 1946 to kproc_create() etc. Many of the callers already 1947 used kproc_start().. 1948 I will return kthread_create() and friends in a while 1949 with implementations that actually create threads, not procs. 1950 Renaming corresponds with version 800002. 1951 195220071010: 1953 RELENG_7 branched. 1954 1955COMMON ITEMS: 1956 1957 General Notes 1958 ------------- 1959 Avoid using make -j when upgrading. While generally safe, there are 1960 sometimes problems using -j to upgrade. If your upgrade fails with 1961 -j, please try again without -j. From time to time in the past there 1962 have been problems using -j with buildworld and/or installworld. This 1963 is especially true when upgrading between "distant" versions (eg one 1964 that cross a major release boundary or several minor releases, or when 1965 several months have passed on the -current branch). 1966 1967 Sometimes, obscure build problems are the result of environment 1968 poisoning. This can happen because the make utility reads its 1969 environment when searching for values for global variables. To run 1970 your build attempts in an "environmental clean room", prefix all make 1971 commands with 'env -i '. See the env(1) manual page for more details. 1972 1973 When upgrading from one major version to another it is generally best 1974 to upgrade to the latest code in the currently installed branch first, 1975 then do an upgrade to the new branch. This is the best-tested upgrade 1976 path, and has the highest probability of being successful. Please try 1977 this approach before reporting problems with a major version upgrade. 1978 1979 When upgrading a live system, having a root shell around before 1980 installing anything can help undo problems. Not having a root shell 1981 around can lead to problems if pam has changed too much from your 1982 starting point to allow continued authentication after the upgrade. 1983 1984 ZFS notes 1985 --------- 1986 When upgrading the boot ZFS pool to a new version, always follow 1987 these two steps: 1988 1989 1.) recompile and reinstall the ZFS boot loader and boot block 1990 (this is part of "make buildworld" and "make installworld") 1991 1992 2.) update the ZFS boot block on your boot drive 1993 1994 The following example updates the ZFS boot block on the first 1995 partition (freebsd-boot) of a GPT partitioned drive ad0: 1996 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1997 1998 Non-boot pools do not need these updates. 1999 2000 To build a kernel 2001 ----------------- 2002 If you are updating from a prior version of FreeBSD (even one just 2003 a few days old), you should follow this procedure. It is the most 2004 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2005 2006 make kernel-toolchain 2007 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2008 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2009 2010 To test a kernel once 2011 --------------------- 2012 If you just want to boot a kernel once (because you are not sure 2013 if it works, or if you want to boot a known bad kernel to provide 2014 debugging information) run 2015 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2016 nextboot -k testkernel 2017 2018 To just build a kernel when you know that it won't mess you up 2019 -------------------------------------------------------------- 2020 This assumes you are already running a CURRENT system. Replace 2021 ${arch} with the architecture of your machine (e.g. "i386", 2022 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2023 2024 cd src/sys/${arch}/conf 2025 config KERNEL_NAME_HERE 2026 cd ../compile/KERNEL_NAME_HERE 2027 make depend 2028 make 2029 make install 2030 2031 If this fails, go to the "To build a kernel" section. 2032 2033 To rebuild everything and install it on the current system. 2034 ----------------------------------------------------------- 2035 # Note: sometimes if you are running current you gotta do more than 2036 # is listed here if you are upgrading from a really old current. 2037 2038 <make sure you have good level 0 dumps> 2039 make buildworld 2040 make kernel KERNCONF=YOUR_KERNEL_HERE 2041 [1] 2042 <reboot in single user> [3] 2043 mergemaster -p [5] 2044 make installworld 2045 mergemaster -i [4] 2046 make delete-old [6] 2047 <reboot> 2048 2049 To cross-install current onto a separate partition 2050 -------------------------------------------------- 2051 # In this approach we use a separate partition to hold 2052 # current's root, 'usr', and 'var' directories. A partition 2053 # holding "/", "/usr" and "/var" should be about 2GB in 2054 # size. 2055 2056 <make sure you have good level 0 dumps> 2057 <boot into -stable> 2058 make buildworld 2059 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2060 <maybe newfs current's root partition> 2061 <mount current's root partition on directory ${CURRENT_ROOT}> 2062 make installworld DESTDIR=${CURRENT_ROOT} 2063 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2064 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2065 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2066 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2067 <reboot into current> 2068 <do a "native" rebuild/install as described in the previous section> 2069 <maybe install compatibility libraries from ports/misc/compat*> 2070 <reboot> 2071 2072 2073 To upgrade in-place from stable to current 2074 ---------------------------------------------- 2075 <make sure you have good level 0 dumps> 2076 make buildworld [9] 2077 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2078 [1] 2079 <reboot in single user> [3] 2080 mergemaster -p [5] 2081 make installworld 2082 mergemaster -i [4] 2083 make delete-old [6] 2084 <reboot> 2085 2086 Make sure that you've read the UPDATING file to understand the 2087 tweaks to various things you need. At this point in the life 2088 cycle of current, things change often and you are on your own 2089 to cope. The defaults can also change, so please read ALL of 2090 the UPDATING entries. 2091 2092 Also, if you are tracking -current, you must be subscribed to 2093 freebsd-current@freebsd.org. Make sure that before you update 2094 your sources that you have read and understood all the recent 2095 messages there. If in doubt, please track -stable which has 2096 much fewer pitfalls. 2097 2098 [1] If you have third party modules, such as vmware, you 2099 should disable them at this point so they don't crash your 2100 system on reboot. 2101 2102 [3] From the bootblocks, boot -s, and then do 2103 fsck -p 2104 mount -u / 2105 mount -a 2106 cd src 2107 adjkerntz -i # if CMOS is wall time 2108 Also, when doing a major release upgrade, it is required that 2109 you boot into single user mode to do the installworld. 2110 2111 [4] Note: This step is non-optional. Failure to do this step 2112 can result in a significant reduction in the functionality of the 2113 system. Attempting to do it by hand is not recommended and those 2114 that pursue this avenue should read this file carefully, as well 2115 as the archives of freebsd-current and freebsd-hackers mailing lists 2116 for potential gotchas. The -U option is also useful to consider. 2117 See mergemaster(8) for more information. 2118 2119 [5] Usually this step is a noop. However, from time to time 2120 you may need to do this if you get unknown user in the following 2121 step. It never hurts to do it all the time. You may need to 2122 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2123 install) after the buildworld before this step if you last updated 2124 from current before 20130425 or from -stable before 20130430. 2125 2126 [6] This only deletes old files and directories. Old libraries 2127 can be deleted by "make delete-old-libs", but you have to make 2128 sure that no program is using those libraries anymore. 2129 2130 [8] In order to have a kernel that can run the 4.x binaries needed to 2131 do an installworld, you must include the COMPAT_FREEBSD4 option in 2132 your kernel. Failure to do so may leave you with a system that is 2133 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2134 required to run the 5.x binaries on more recent kernels. And so on 2135 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2136 2137 Make sure that you merge any new devices from GENERIC since the 2138 last time you updated your kernel config file. 2139 2140 [9] When checking out sources, you must include the -P flag to have 2141 cvs prune empty directories. 2142 2143 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2144 "?=" instead of the "=" assignment operator, so that buildworld can 2145 override the CPUTYPE if it needs to. 2146 2147 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2148 not on the command line, or in /etc/make.conf. buildworld will 2149 warn if it is improperly defined. 2150FORMAT: 2151 2152This file contains a list, in reverse chronological order, of major 2153breakages in tracking -current. It is not guaranteed to be a complete 2154list of such breakages, and only contains entries since October 10, 2007. 2155If you need to see UPDATING entries from before that date, you will need 2156to fetch an UPDATING file from an older FreeBSD release. 2157 2158Copyright information: 2159 2160Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2161 2162Redistribution, publication, translation and use, with or without 2163modification, in full or in part, in any form or format of this 2164document are permitted without further permission from the author. 2165 2166THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2167IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2168WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2169DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2170INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2171(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2172SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2173HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2174STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2175IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2176POSSIBILITY OF SUCH DAMAGE. 2177 2178Contact Warner Losh if you have any questions about your use of 2179this document. 2180 2181$FreeBSD: releng/10.1/UPDATING 277808 2015-01-27 19:37:02Z delphij $ 2182