UPDATING revision 269401
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 1920140801: 20 The NFSv4.1 server committed by r269398 changes the internal 21 function call interfaces used between the NFS and krpc modules. 22 As such, __FreeBSD_version was bumped. 23 2420140717: 25 It is no longer necessary to include the dwarf version in your DEBUG 26 options in your kernel config file. The bug that required it to be 27 placed in the config file has bene fixed. DEBUG should now just 28 contain -g. The build system will automatically update things 29 to do the right thing. 30 3120140715: 32 Several ABI breaking changes were merged to CTL and new iSCSI code. 33 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 34 iscsictl need to be rebuilt to work with a new kernel. 35 3620140708: 37 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 38 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 39 which differs from the behaviour controlled by this knob.) 40 4120140608: 42 On i386 and amd64 systems, the onifconsole flag is now set by default 43 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 44 as a login TTY if it is set in the bootloader as an active kernel 45 console. No changes in behavior should result otherwise. To revert to 46 the previous behavior, set ttyu0 to "off" in /etc/ttys. 47 4820140512: 49 Clang and llvm have been upgraded to 3.4.1 release. 50 5120140321: 52 Clang and llvm have been upgraded to 3.4 release. 53 5420140306: 55 If a Makefile in a tests/ directory was auto-generating a Kyuafile 56 instead of providing an explicit one, this would prevent such 57 Makefile from providing its own Kyuafile in the future during 58 NO_CLEAN builds. This has been fixed in the Makefiles but manual 59 intervention is needed to clean an objdir if you use NO_CLEAN: 60 # find /usr/obj -name Kyuafile | xargs rm -f 61 6220140303: 63 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 64 capability mode support. Please note that enabling the feature in 65 kernel is still highly recommended. 66 6720140227: 68 OpenSSH is now built with sandbox support, and will use sandbox as 69 the default privilege separation method. This requires Capsicum 70 capability mode support in kernel. 71 7220140216: 73 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 74 been deprecated and will not be part of FreeBSD 11.0 and later 75 releases. If you use this driver, please consider switching to 76 the nfe(4) driver instead. 77 7820140120: 79 10.0-RELEASE. 80 8120131216: 82 The behavior of gss_pseudo_random() for the krb5 mechanism 83 has changed, for applications requesting a longer random string 84 than produced by the underlying enctype's pseudo-random() function. 85 In particular, the random string produced from a session key of 86 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 87 be different at the 17th octet and later, after this change. 88 The counter used in the PRF+ construction is now encoded as a 89 big-endian integer in accordance with RFC 4402. 90 __FreeBSD_version is bumped to 1000701. 91 9220131108: 93 The WITHOUT_ATF build knob has been removed and its functionality 94 has been subsumed into the more generic WITHOUT_TESTS. If you were 95 using the former to disable the build of the ATF libraries, you 96 should change your settings to use the latter. 97 9820131031: 99 The default version of mtree is nmtree which is obtained from 100 NetBSD. The output is generally the same, but may vary 101 slightly. If you found you need identical output adding 102 "-F freebsd9" to the command line should do the trick. For the 103 time being, the old mtree is available as fmtree. 104 10520131014: 106 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 107 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 108 1.1.4_8 and verify bsdyml not linked in, before running "make 109 delete-old-libs": 110 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 111 or 112 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 113 11420131010: 115 The rc.d/jail script has been updated to support jail(8) 116 configuration file. The "jail_<jname>_*" rc.conf(5) variables 117 for per-jail configuration are automatically converted to 118 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 119 This is transparently backward compatible. See below about some 120 incompatibilities and rc.conf(5) manual page for more details. 121 122 These variables are now deprecated in favor of jail(8) configuration 123 file. One can use "rc.d/jail config <jname>" command to generate 124 a jail(8) configuration file in /var/run/jail.<jname>.conf without 125 running the jail(8) utility. The default pathname of the 126 configuration file is /etc/jail.conf and can be specified by 127 using $jail_conf or $jail_<jname>_conf variables. 128 129 Please note that jail_devfs_ruleset accepts an integer at 130 this moment. Please consider to rewrite the ruleset name 131 with an integer. 132 13320130930: 134 BIND has been removed from the base system. If all you need 135 is a local resolver, simply enable and start the local_unbound 136 service instead. Otherwise, several versions of BIND are 137 available in the ports tree. The dns/bind99 port is one example. 138 139 With this change, nslookup(1) and dig(1) are no longer in the base 140 system. Users should instead use host(1) and drill(1) which are 141 in the base system. Alternatively, nslookup and dig can 142 be obtained by installing the dns/bind-tools port. 143 14420130916: 145 With the addition of unbound(8), a new unbound user is now 146 required during installworld. "mergemaster -p" can be used to 147 add the user prior to installworld, as documented in the handbook. 148 14920130911: 150 OpenSSH is now built with DNSSEC support, and will by default 151 silently trust signed SSHFP records. This can be controlled with 152 the VerifyHostKeyDNS client configuration setting. DNSSEC support 153 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 154 15520130906: 156 The GNU Compiler Collection and C++ standard library (libstdc++) 157 are no longer built by default on platforms where clang is the system 158 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 159 options in src.conf. 160 16120130905: 162 The PROCDESC kernel option is now part of the GENERIC kernel 163 configuration and is required for the rwhod(8) to work. 164 If you are using custom kernel configuration, you should include 165 'options PROCDESC'. 166 16720130905: 168 The API and ABI related to the Capsicum framework was modified 169 in backward incompatible way. The userland libraries and programs 170 have to be recompiled to work with the new kernel. This includes the 171 following libraries and programs, but the whole buildworld is 172 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 173 kdump, procstat, rwho, rwhod, uniq. 174 17520130903: 176 AES-NI intrinsic support has been added to gcc. The AES-NI module 177 has been updated to use this support. A new gcc is required to build 178 the aesni module on both i386 and amd64. 179 18020130821: 181 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 182 Thus "device padlock_rng" and "device rdrand_rng" should be 183 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 184 18520130813: 186 WITH_ICONV has been split into two feature sets. WITH_ICONV now 187 enables just the iconv* functionality and is now on by default. 188 WITH_LIBICONV_COMPAT enables the libiconv api and link time 189 compatability. Set WITHOUT_ICONV to build the old way. 190 If you have been using WITH_ICONV before, you will very likely 191 need to turn on WITH_LIBICONV_COMPAT. 192 19320130806: 194 INVARIANTS option now enables DEBUG for code with OpenSolaris and 195 Illumos origin, including ZFS. If you have INVARIANTS in your 196 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 197 explicitly. 198 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 199 locks if WITNESS option was set. Because that generated a lot of 200 witness(9) reports and all of them were believed to be false 201 positives, this is no longer done. New option OPENSOLARIS_WITNESS 202 can be used to achieve the previous behavior. 203 20420130806: 205 Timer values in IPv6 data structures now use time_uptime instead 206 of time_second. Although this is not a user-visible functional 207 change, userland utilities which directly use them---ndp(8), 208 rtadvd(8), and rtsold(8) in the base system---need to be updated 209 to r253970 or later. 210 21120130802: 212 find -delete can now delete the pathnames given as arguments, 213 instead of only files found below them or if the pathname did 214 not contain any slashes. Formerly, the following error message 215 would result: 216 217 find: -delete: <path>: relative path potentially not safe 218 219 Deleting the pathnames given as arguments can be prevented 220 without error messages using -mindepth 1 or by changing 221 directory and passing "." as argument to find. This works in the 222 old as well as the new version of find. 223 22420130726: 225 Behavior of devfs rules path matching has been changed. 226 Pattern is now always matched against fully qualified devfs 227 path and slash characters must be explicitly matched by 228 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 229 subdirectories must be reviewed. 230 23120130716: 232 The default ARM ABI has changed to the ARM EABI. The old ABI is 233 incompatible with the ARM EABI and all programs and modules will 234 need to be rebuilt to work with a new kernel. 235 236 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 237 238 NOTE: Support for the old ABI will be removed in the future and 239 users are advised to upgrade. 240 24120130709: 242 pkg_install has been disconnected from the build if you really need it 243 you should add WITH_PKGTOOLS in your src.conf(5). 244 24520130709: 246 Most of network statistics structures were changed to be able 247 keep 64-bits counters. Thus all tools, that work with networking 248 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 249 25020130629: 251 Fix targets that run multiple make's to use && rather than ; 252 so that subsequent steps depend on success of previous. 253 254 NOTE: if building 'universe' with -j* on stable/8 or stable/9 255 it would be better to start the build using bmake, to avoid 256 overloading the machine. 257 25820130618: 259 Fix a bug that allowed a tracing process (e.g. gdb) to write 260 to a memory-mapped file in the traced process's address space 261 even if neither the traced process nor the tracing process had 262 write access to that file. 263 26420130615: 265 CVS has been removed from the base system. An exact copy 266 of the code is available from the devel/cvs port. 267 26820130613: 269 Some people report the following error after the switch to bmake: 270 271 make: illegal option -- J 272 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 273 ... 274 *** [buildworld] Error code 2 275 276 this likely due to an old instance of make in 277 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 278 which src/Makefile will use that blindly, if it exists, so if 279 you see the above error: 280 281 rm -rf `make -V MAKEPATH` 282 283 should resolve it. 284 28520130516: 286 Use bmake by default. 287 Whereas before one could choose to build with bmake via 288 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 289 make. The goal is to remove these knobs for 10-RELEASE. 290 291 It is worth noting that bmake (like gmake) treats the command 292 line as the unit of failure, rather than statements within the 293 command line. Thus '(cd some/where && dosomething)' is safer 294 than 'cd some/where; dosomething'. The '()' allows consistent 295 behavior in parallel build. 296 29720130429: 298 Fix a bug that allows NFS clients to issue READDIR on files. 299 30020130426: 301 The WITHOUT_IDEA option has been removed because 302 the IDEA patent expired. 303 30420130426: 305 The sysctl which controls TRIM support under ZFS has been renamed 306 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 307 enabled by default. 308 30920130425: 310 The mergemaster command now uses the default MAKEOBJDIRPREFIX 311 rather than creating it's own in the temporary directory in 312 order allow access to bootstrapped versions of tools such as 313 install and mtree. When upgrading from version of FreeBSD where 314 the install command does not support -l, you will need to 315 install a new mergemaster command if mergemaster -p is required. 316 This can be accomplished with the command (cd src/usr.sbin/mergemaster 317 && make install). 318 31920130404: 320 Legacy ATA stack, disabled and replaced by new CAM-based one since 321 FreeBSD 9.0, completely removed from the sources. Kernel modules 322 atadisk and atapi*, user-level tools atacontrol and burncd are 323 removed. Kernel option `options ATA_CAM` is now permanently enabled 324 and removed. 325 32620130319: 327 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 328 and socketpair(2). Software, in particular Kerberos, may 329 automatically detect and use these during building. The resulting 330 binaries will not work on older kernels. 331 33220130308: 333 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 334 information, see the respective 20130304 entry). 335 33620130304: 337 Recent commits to callout(9) changed the size of struct callout, 338 so the KBI is probably heavily disturbed. Also, some functions 339 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 340 by macros. Every kernel module using it won't load, so rebuild 341 is requested. 342 343 The ctl device has been re-enabled in GENERIC for i386 and amd64, 344 but does not initialize by default (because of the new CTL_DISABLE 345 option) to save memory. To re-enable it, remove the CTL_DISABLE 346 option from the kernel config file or set kern.cam.ctl.disable=0 347 in /boot/loader.conf. 348 34920130301: 350 The ctl device has been disabled in GENERIC for i386 and amd64. 351 This was done due to the extra memory being allocated at system 352 initialisation time by the ctl driver which was only used if 353 a CAM target device was created. This makes a FreeBSD system 354 unusable on 128MB or less of RAM. 355 35620130208: 357 A new compression method (lz4) has been merged to -HEAD. Please 358 refer to zpool-features(7) for more information. 359 360 Please refer to the "ZFS notes" section of this file for information 361 on upgrading boot ZFS pools. 362 36320130129: 364 A BSD-licensed patch(1) variant has been added and is installed 365 as bsdpatch, being the GNU version the default patch. 366 To inverse the logic and use the BSD-licensed one as default, 367 while having the GNU version installed as gnupatch, rebuild 368 and install world with the WITH_BSD_PATCH knob set. 369 37020130121: 371 Due to the use of the new -l option to install(1) during build 372 and install, you must take care not to directly set the INSTALL 373 make variable in your /etc/make.conf, /etc/src.conf, or on the 374 command line. If you wish to use the -C flag for all installs 375 you may be able to add INSTALL+=-C to /etc/make.conf or 376 /etc/src.conf. 377 37820130118: 379 The install(1) option -M has changed meaning and now takes an 380 argument that is a file or path to append logs to. In the 381 unlikely event that -M was the last option on the command line 382 and the command line contained at least two files and a target 383 directory the first file will have logs appended to it. The -M 384 option served little practical purpose in the last decade so its 385 use is expected to be extremely rare. 386 38720121223: 388 After switching to Clang as the default compiler some users of ZFS 389 on i386 systems started to experience stack overflow kernel panics. 390 Please consider using 'options KSTACK_PAGES=4' in such configurations. 391 39220121222: 393 GEOM_LABEL now mangles label names read from file system metadata. 394 Mangling affect labels containing spaces, non-printable characters, 395 '%' or '"'. Device names in /etc/fstab and other places may need to 396 be updated. 397 39820121217: 399 By default, only the 10 most recent kernel dumps will be saved. To 400 restore the previous behaviour (no limit on the number of kernel dumps 401 stored in the dump directory) add the following line to /etc/rc.conf: 402 403 savecore_flags="" 404 40520121201: 406 With the addition of auditdistd(8), a new auditdistd user is now 407 required during installworld. "mergemaster -p" can be used to 408 add the user prior to installworld, as documented in the handbook. 409 41020121117: 411 The sin6_scope_id member variable in struct sockaddr_in6 is now 412 filled by the kernel before passing the structure to the userland via 413 sysctl or routing socket. This means the KAME-specific embedded scope 414 id in sin6_addr.s6_addr[2] is always cleared in userland application. 415 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 416 __FreeBSD_version is bumped to 1000025. 417 41820121105: 419 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 420 This means that the world and kernel will be compiled with clang 421 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 422 and /usr/bin/cpp. To disable this behavior and revert to building 423 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 424 of current may need to bootstrap WITHOUT_CLANG first if the clang 425 build fails (its compatibility window doesn't extend to the 9 stable 426 branch point). 427 42820121102: 429 The IPFIREWALL_FORWARD kernel option has been removed. Its 430 functionality now turned on by default. 431 43220121023: 433 The ZERO_COPY_SOCKET kernel option has been removed and 434 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 435 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 436 mechanism which is not safe and may result in kernel crashes. 437 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 438 driver supports disposeable external page sized mbuf storage. 439 Proper replacements for both zero-copy mechanisms are under 440 consideration and will eventually lead to complete removal 441 of the two kernel options. 442 44320121023: 444 The IPv4 network stack has been converted to network byte 445 order. The following modules need to be recompiled together 446 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 447 pf(4), ipfw(4), ng_ipfw(4), stf(4). 448 44920121022: 450 Support for non-MPSAFE filesystems was removed from VFS. The 451 VFS_VERSION was bumped, all filesystem modules shall be 452 recompiled. 453 45420121018: 455 All the non-MPSAFE filesystems have been disconnected from 456 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 457 portalfs, smbfs, xfs. 458 45920121016: 460 The interface cloning API and ABI has changed. The following 461 modules need to be recompiled together with kernel: 462 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 463 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 464 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 465 46620121015: 467 The sdhci driver was split in two parts: sdhci (generic SD Host 468 Controller logic) and sdhci_pci (actual hardware driver). 469 No kernel config modifications are required, but if you 470 load sdhc as a module you must switch to sdhci_pci instead. 471 47220121014: 473 Import the FUSE kernel and userland support into base system. 474 47520121013: 476 The GNU sort(1) program has been removed since the BSD-licensed 477 sort(1) has been the default for quite some time and no serious 478 problems have been reported. The corresponding WITH_GNU_SORT 479 knob has also gone. 480 48120121006: 482 The pfil(9) API/ABI for AF_INET family has been changed. Packet 483 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 484 with new kernel. 485 48620121001: 487 The net80211(4) ABI has been changed to allow for improved driver 488 PS-POLL and power-save support. All wireless drivers need to be 489 recompiled to work with the new kernel. 490 49120120913: 492 The random(4) support for the VIA hardware random number 493 generator (`PADLOCK') is no longer enabled unconditionally. 494 Add the padlock_rng device in the custom kernel config if 495 needed. The GENERIC kernels on i386 and amd64 do include the 496 device, so the change only affects the custom kernel 497 configurations. 498 49920120908: 500 The pf(4) packet filter ABI has been changed. pfctl(8) and 501 snmp_pf module need to be recompiled to work with new kernel. 502 50320120828: 504 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 505 to -HEAD. Pools that have empty_bpobj in active state can not be 506 imported read-write with ZFS implementations that do not support 507 this feature. For more information read the zpool-features(5) 508 manual page. 509 51020120727: 511 The sparc64 ZFS loader has been changed to no longer try to auto- 512 detect ZFS providers based on diskN aliases but now requires these 513 to be explicitly listed in the OFW boot-device environment variable. 514 51520120712: 516 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 517 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 518 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 519 52020120712: 521 The following sysctls and tunables have been renamed for consistency 522 with other variables: 523 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 524 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 525 52620120628: 527 The sort utility has been replaced with BSD sort. For now, GNU sort 528 is also available as "gnusort" or the default can be set back to 529 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 530 installed as "bsdsort". 531 53220120611: 533 A new version of ZFS (pool version 5000) has been merged to -HEAD. 534 Starting with this version the old system of ZFS pool versioning 535 is superseded by "feature flags". This concept enables forward 536 compatibility against certain future changes in functionality of ZFS 537 pools. The first read-only compatible "feature flag" for ZFS pools 538 is named "com.delphix:async_destroy". For more information 539 read the new zpool-features(5) manual page. 540 Please refer to the "ZFS notes" section of this file for information 541 on upgrading boot ZFS pools. 542 54320120417: 544 The malloc(3) implementation embedded in libc now uses sources imported 545 as contrib/jemalloc. The most disruptive API change is to 546 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 547 delete it prior to installworld, and optionally re-create it using the 548 new format after rebooting. See malloc.conf(5) for details 549 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 550 NAMESPACE section). 551 55220120328: 553 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 554 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 555 now spelled mips. This is to aid compatibility with third-party 556 software that expects this naming scheme in uname(3). Little-endian 557 settings are unchanged. If you are updating a big-endian mips64 machine 558 from before this change, you may need to set MACHINE_ARCH=mips64 in 559 your environment before the new build system will recognize your machine. 560 56120120306: 562 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 563 platforms. 564 56520120229: 566 Now unix domain sockets behave "as expected" on nullfs(5). Previously 567 nullfs(5) did not pass through all behaviours to the underlying layer, 568 as a result if we bound to a socket on the lower layer we could connect 569 only to the lower path; if we bound to the upper layer we could connect 570 only to the upper path. The new behavior is one can connect to both the 571 lower and the upper paths regardless what layer path one binds to. 572 57320120211: 574 The getifaddrs upgrade path broken with 20111215 has been restored. 575 If you have upgraded in between 20111215 and 20120209 you need to 576 recompile libc again with your kernel. You still need to recompile 577 world to be able to configure CARP but this restriction already 578 comes from 20111215. 579 58020120114: 581 The set_rcvar() function has been removed from /etc/rc.subr. All 582 base and ports rc.d scripts have been updated, so if you have a 583 port installed with a script in /usr/local/etc/rc.d you can either 584 hand-edit the rcvar= line, or reinstall the port. 585 586 An easy way to handle the mass-update of /etc/rc.d: 587 rm /etc/rc.d/* && mergemaster -i 588 58920120109: 590 panic(9) now stops other CPUs in the SMP systems, disables interrupts 591 on the current CPU and prevents other threads from running. 592 This behavior can be reverted using the kern.stop_scheduler_on_panic 593 tunable/sysctl. 594 The new behavior can be incompatible with kern.sync_on_panic. 595 59620111215: 597 The carp(4) facility has been changed significantly. Configuration 598 of the CARP protocol via ifconfig(8) has changed, as well as format 599 of CARP events submitted to devd(8) has changed. See manual pages 600 for more information. The arpbalance feature of carp(4) is currently 601 not supported anymore. 602 603 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 604 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 605 need to be recompiled. 606 60720111122: 608 The acpi_wmi(4) status device /dev/wmistat has been renamed to 609 /dev/wmistat0. 610 61120111108: 612 The option VFS_ALLOW_NONMPSAFE option has been added in order to 613 explicitely support non-MPSAFE filesystems. 614 It is on by default for all supported platform at this present 615 time. 616 61720111101: 618 The broken amd(4) driver has been replaced with esp(4) in the amd64, 619 i386 and pc98 GENERIC kernel configuration files. 620 62120110930: 622 sysinstall has been removed 623 62420110923: 625 The stable/9 branch created in subversion. This corresponds to the 626 RELENG_9 branch in CVS. 627 62820110913: 629 This commit modifies vfs_register() so that it uses a hash 630 calculation to set vfc_typenum, which is enabled by default. 631 The first time a system is booted after this change, the 632 vfc_typenum values will change for all file systems. The 633 main effect of this is a change to the NFS server file handles 634 for file systems that use vfc_typenum in their fsid, such as ZFS. 635 It will, however, prevent vfc_typenum from changing when file 636 systems are loaded in a different order for subsequent reboots. 637 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 638 until you are ready to remount all NFS clients after a reboot. 639 64020110828: 641 Bump the shared library version numbers for libraries that 642 do not use symbol versioning, have changed the ABI compared 643 to stable/8 and which shared library version was not bumped. 644 Done as part of 9.0-RELEASE cycle. 645 64620110815: 647 During the merge of Capsicum features, the fget(9) KPI was modified. 648 This may require the rebuilding of out-of-tree device drivers -- 649 issues have been reported specifically with the nVidia device driver. 650 __FreeBSD_version is bumped to 900041. 651 652 Also, there is a period between 20110811 and 20110814 where the 653 special devices /dev/{stdin,stdout,stderr} did not work correctly. 654 Building world from a kernel during that window may not work. 655 65620110628: 657 The packet filter (pf) code has been updated to OpenBSD 4.5. 658 You need to update userland tools to be in sync with kernel. 659 This update breaks backward compatibility with earlier pfsync(4) 660 versions. Care must be taken when updating redundant firewall setups. 661 66220110608: 663 The following sysctls and tunables are retired on x86 platforms: 664 machdep.hlt_cpus 665 machdep.hlt_logical_cpus 666 The following sysctl is retired: 667 machdep.hyperthreading_allowed 668 The sysctls were supposed to provide a way to dynamically offline and 669 online selected CPUs on x86 platforms, but the implementation has not 670 been reliable especially with SCHED_ULE scheduler. 671 machdep.hyperthreading_allowed tunable is still available to ignore 672 hyperthreading CPUs at OS level. 673 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 674 where X is an APIC ID of a CPU. Be advised, though, that disabling 675 CPUs in non-uniform fashion will result in non-uniform topology and 676 may lead to sub-optimal system performance with SCHED_ULE, which is 677 a default scheduler. 678 67920110607: 680 cpumask_t type is retired and cpuset_t is used in order to describe 681 a mask of CPUs. 682 68320110531: 684 Changes to ifconfig(8) for dynamic address family detection mandate 685 that you are running a kernel of 20110525 or later. Make sure to 686 follow the update procedure to boot a new kernel before installing 687 world. 688 68920110513: 690 Support for sun4v architecture is officially dropped 691 69220110503: 693 Several KPI breaking changes have been committed to the mii(4) layer, 694 the PHY drivers and consequently some Ethernet drivers using mii(4). 695 This means that miibus.ko and the modules of the affected Ethernet 696 drivers need to be recompiled. 697 698 Note to kernel developers: Given that the OUI bit reversion problem 699 was fixed as part of these changes all mii(4) commits related to OUIs, 700 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 701 handling, no longer can be merged verbatim to stable/8 and previous 702 branches. 703 70420110430: 705 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 706 into their kernel configurations along with 'device pci'. 707 70820110427: 709 The default NFS client is now the new NFS client, so fstype "newnfs" 710 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 711 Although mounts via fstype "nfs" will usually work without userland 712 changes, it is recommended that the mount(8) and mount_nfs(8) 713 commands be rebuilt from sources and that a link to mount_nfs called 714 mount_oldnfs be created. The new client is compiled into the 715 kernel with "options NFSCL" and this is needed for diskless root 716 file systems. The GENERIC kernel configs have been changed to use 717 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 718 To use the regular/old client, you can "mount -t oldnfs ...". For 719 a diskless root file system, you must also include a line like: 720 721 vfs.root.mountfrom="oldnfs:" 722 723 in the boot/loader.conf on the root fs on the NFS server to make 724 a diskless root fs use the old client. 725 72620110424: 727 The GENERIC kernels for all architectures now default to the new 728 CAM-based ATA stack. It means that all legacy ATA drivers were 729 removed and replaced by respective CAM drivers. If you are using 730 ATA device names in /etc/fstab or other places, make sure to update 731 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 732 where 'Y's are the sequential numbers starting from zero for each type 733 in order of detection, unless configured otherwise with tunables, 734 see cam(4)). There will be symbolic links created in /dev/ to map 735 old adX devices to the respective adaY. They should provide basic 736 compatibility for file systems mounting in most cases, but they do 737 not support old user-level APIs and do not have respective providers 738 in GEOM. Consider using updated management tools with new device names. 739 740 It is possible to load devices ahci, ata, siis and mvs as modules, 741 but option ATA_CAM should remain in kernel configuration to make ata 742 module work as CAM driver supporting legacy ATA controllers. Device ata 743 still can be used in modular fashion (atacore + ...). Modules atadisk 744 and atapi* are not used and won't affect operation in ATA_CAM mode. 745 Note that to use CAM-based ATA kernel should include CAM devices 746 scbus, pass, da (or explicitly ada), cd and optionally others. All of 747 them are parts of the cam module. 748 749 ataraid(4) functionality is now supported by the RAID GEOM class. 750 To use it you can load geom_raid kernel module and use graid(8) tool 751 for management. Instead of /dev/arX device names, use /dev/raid/rX. 752 753 No kernel config options or code have been removed, so if a problem 754 arises, please report it and optionally revert to the old ATA stack. 755 In order to do it you can remove from the kernel config: 756 options ATA_CAM 757 device ahci 758 device mvs 759 device siis 760 , and instead add back: 761 device atadisk # ATA disk drives 762 device ataraid # ATA RAID drives 763 device atapicd # ATAPI CDROM drives 764 device atapifd # ATAPI floppy drives 765 device atapist # ATAPI tape drives 766 76720110423: 768 The default NFS server has been changed to the new server, which 769 was referred to as the experimental server. If you need to switch 770 back to the old NFS server, you must now put the "-o" option on 771 both the mountd and nfsd commands. This can be done using the 772 mountd_flags and nfs_server_flags rc.conf variables until an 773 update to the rc scripts is committed, which is coming soon. 774 77520110418: 776 The GNU Objective-C runtime library (libobjc), and other Objective-C 777 related components have been removed from the base system. If you 778 require an Objective-C library, please use one of the available ports. 779 78020110331: 781 ath(4) has been split into bus- and device- modules. if_ath contains 782 the HAL, the TX rate control and the network device code. if_ath_pci 783 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 784 contains the AHB glue. Users need to load both if_ath_pci and if_ath 785 in order to use ath on everything else. 786 787 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 788 need to load if_ath and if_ath_pci for ath(4) operation. 789 79020110314: 791 As part of the replacement of sysinstall, the process of building 792 release media has changed significantly. For details, please re-read 793 release(7), which has been updated to reflect the new build process. 794 79520110218: 796 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 797 is the last available version under GPLv2. It brings a number of new 798 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 799 4.1 and SSE 4.2), better support for powerpc64, a number of new 800 directives, and lots of other small improvements. See the ChangeLog 801 file in contrib/binutils for the full details. 802 80320110218: 804 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 805 compliant, and will now use half of hash for authentication. 806 This will break interoperability with all stacks (including all 807 actual FreeBSD versions) who implement 808 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 809 authentication). 810 The only workaround with such peers is to use another HMAC 811 algorithm for IPsec ("phase 2") authentication. 812 81320110207: 814 Remove the uio_yield prototype and symbol. This function has 815 been misnamed since it was introduced and should not be 816 globally exposed with this name. The equivalent functionality 817 is now available using kern_yield(curthread->td_user_pri). 818 The function remains undocumented. 819 82020110112: 821 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 822 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 823 for scalar sysctls is defined but disabled. Code that needs 824 UQUAD to pass the type checking that must compile on older 825 systems where the define is not present can check against 826 __FreeBSD_version >= 900030. 827 828 The system dialog(1) has been replaced with a new version previously 829 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 830 with the previous version, but the libdialog associated with it has 831 a largely incompatible API. As such, the original version of libdialog 832 will be kept temporarily as libodialog, until its base system consumers 833 are replaced or updated. Bump __FreeBSD_version to 900030. 834 83520110103: 836 If you are trying to run make universe on a -stable system, and you get 837 the following warning: 838 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 839 unknown. config(8) likely too old." 840 or something similar to it, then you must upgrade your -stable system 841 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 842 stable/8) or build the config from the latest stable/8 branch and 843 install it on your system. 844 845 Prior to this date, building a current universe on 8-stable system from 846 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 847 error in the first kernel build phase. A new config on those old 848 systems will fix that problem for older versions of -current. 849 85020101228: 851 The TCP stack has been modified to allow Khelp modules to interact with 852 it via helper hook points and store per-connection data in the TCP 853 control block. Bump __FreeBSD_version to 900029. User space tools that 854 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 855 be recompiled. 856 85720101114: 858 Generic IEEE 802.3 annex 31B full duplex flow control support has been 859 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 860 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 861 to take advantage of it instead of using custom implementations. This 862 means that these drivers now no longer unconditionally advertise 863 support for flow control but only do so if flow control is a selected 864 media option. This was implemented in the generic support that way in 865 order to allow flow control to be switched on and off via ifconfig(8) 866 with the PHY specific default to typically off in order to protect 867 from unwanted effects. Consequently, if you used flow control with 868 one of the above mentioned drivers you now need to explicitly enable 869 it, for example via: 870 ifconfig bge0 media auto mediaopt flowcontrol 871 872 Along with the above mentioned changes generic support for setting 873 1000baseT master mode also has been added and brgphy(4), ciphy(4), 874 e1000phy(4) as well as ip1000phy(4) have been converted to take 875 advantage of it. This means that these drivers now no longer take the 876 link0 parameter for selecting master mode but the master media option 877 has to be used instead, for example like in the following: 878 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 879 880 Selection of master mode now is also available with all other PHY 881 drivers supporting 1000baseT. 882 88320101111: 884 The TCP stack has received a significant update to add support for 885 modularised congestion control and generally improve the clarity of 886 congestion control decisions. Bump __FreeBSD_version to 900025. User 887 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 888 sockstat) need to be recompiled. 889 89020101002: 891 The man(1) utility has been replaced by a new version that no longer 892 uses /etc/manpath.config. Please consult man.conf(5) for how to 893 migrate local entries to the new format. 894 89520100928: 896 The copyright strings printed by login(1) and sshd(8) at the time of a 897 new connection have been removed to follow other operating systems and 898 upstream sshd. 899 90020100915: 901 A workaround for a fixed ld bug has been removed in kernel code, 902 so make sure that your system ld is built from sources after 903 revision 210245 from 2010-07-19 (r211583 if building head kernel 904 on stable/8, r211584 for stable/7; both from 2010-08-21). 905 A symptom of incorrect ld version is different addresses for 906 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 907 90820100913: 909 The $ipv6_prefer variable in rc.conf(5) has been split into 910 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 911 912 The $ip6addrctl_policy is a variable to choose a pre-defined 913 address selection policy set by ip6addrctl(8). A value 914 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 915 default is "AUTO". 916 917 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 918 flag (see an entry of 20090926) is set on an interface with no 919 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 920 security reason. If you want IPv6 link-local address on all 921 interfaces by default, set this to "YES". 922 923 The old ipv6_prefer="YES" is equivalent to 924 ipv6_activate_all_interfaces="YES" and 925 ip6addrctl_policy="ipv6_prefer". 926 92720100913: 928 DTrace has grown support for userland tracing. Due to this, DTrace is 929 now i386 and amd64 only. 930 dtruss(1) is now installed by default on those systems and a new 931 kernel module is needed for userland tracing: fasttrap. 932 No changes to your kernel config file are necessary to enable 933 userland tracing, but you might consider adding 'STRIP=' and 934 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 935 to have informative userland stack traces in DTrace (ustack). 936 93720100725: 938 The acpi_aiboost(4) driver has been removed in favor of the new 939 aibs(4) driver. You should update your kernel configuration file. 940 94120100722: 942 BSD grep has been imported to the base system and it is built by 943 default. It is completely BSD licensed, highly GNU-compatible, uses 944 less memory than its GNU counterpart and has a small codebase. 945 However, it is slower than its GNU counterpart, which is mostly 946 noticeable for larger searches, for smaller ones it is measurable 947 but not significant. The reason is complex, the most important factor 948 is that we lack a modern and efficient regex library and GNU 949 overcomes this by optimizing the searches internally. Future work 950 on improving the regex performance is planned, for the meantime, 951 users that need better performance, can build GNU grep instead by 952 setting the WITH_GNU_GREP knob. 953 95420100713: 955 Due to the import of powerpc64 support, all existing powerpc kernel 956 configuration files must be updated with a machine directive like this: 957 machine powerpc powerpc 958 959 In addition, an updated config(8) is required to build powerpc kernels 960 after this change. 961 96220100713: 963 A new version of ZFS (version 15) has been merged to -HEAD. 964 This version uses a python library for the following subcommands: 965 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 966 For full functionality of these commands the following port must 967 be installed: sysutils/py-zfs 968 96920100429: 970 'vm_page's are now hashed by physical address to an array of mutexes. 971 Currently this is only used to serialize access to hold_count. Over 972 time the page queue mutex will be peeled away. This changes the size 973 of pmap on every architecture. And requires all callers of vm_page_hold 974 and vm_page_unhold to be updated. 975 97620100402: 977 WITH_CTF can now be specified in src.conf (not recommended, there 978 are some problems with static executables), make.conf (would also 979 affect ports which do not use GNU make and do not override the 980 compile targets) or in the kernel config (via "makeoptions 981 WITH_CTF=yes"). 982 When WITH_CTF was specified there before this was silently ignored, 983 so make sure that WITH_CTF is not used in places which could lead 984 to unwanted behavior. 985 98620100311: 987 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 988 to allow 32-bit compatibility on non-x86 platforms. All kernel 989 configurations on amd64 and ia64 platforms using these options must 990 be modified accordingly. 991 99220100113: 993 The utmp user accounting database has been replaced with utmpx, 994 the user accounting interface standardized by POSIX. 995 Unfortunately the semantics of utmp and utmpx don't match, 996 making it practically impossible to support both interfaces. 997 The user accounting database is used by tools like finger(1), 998 last(1), talk(1), w(1) and ac(8). 999 1000 All applications in the base system use utmpx. This means only 1001 local binaries (e.g. from the ports tree) may still use these 1002 utmp database files. These applications must be rebuilt to make 1003 use of utmpx. 1004 1005 After the system has been upgraded, it is safe to remove the old 1006 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1007 assuming their contents is of no importance anymore. Old wtmp 1008 databases can only be used by last(1) and ac(8) after they have 1009 been converted to the new format using wtmpcvt(1). 1010 101120100108: 1012 Introduce the kernel thread "deadlock resolver" (which can be enabled 1013 via the DEADLKRES option, see NOTES for more details) and the 1014 sleepq_type() function for sleepqueues. 1015 101620091202: 1017 The rc.firewall and rc.firewall6 were unified, and 1018 rc.firewall6 and rc.d/ip6fw were removed. 1019 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1020 variables are obsoleted. Instead, the following new rc 1021 variables are added to rc.d/ipfw: 1022 1023 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1024 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1025 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1026 1027 The meanings correspond to the relevant IPv4 variables. 1028 102920091125: 1030 8.0-RELEASE. 1031 103220091113: 1033 The default terminal emulation for syscons(4) has been changed 1034 from cons25 to xterm on all platforms except pc98. This means 1035 that the /etc/ttys file needs to be updated to ensure correct 1036 operation of applications on the console. 1037 1038 The terminal emulation style can be toggled per window by using 1039 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1040 options can be used to change the compile-time default back to 1041 cons25. 1042 1043 To prevent graphical artifacts, make sure the TERM environment 1044 variable is set to match the terminal emulation that is being 1045 performed by syscons(4). 1046 104720091109: 1048 The layout of the structure ieee80211req_scan_result has changed. 1049 Applications that require wireless scan results (e.g. ifconfig(8)) 1050 from net80211 need to be recompiled. 1051 1052 Applications such as wpa_supplicant(8) may require a full world 1053 build without using NO_CLEAN in order to get synchronized with the 1054 new structure. 1055 105620091025: 1057 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1058 There's one kernel module for each firmware. Adding "device iwnfw" 1059 to the kernel configuration file means including all three firmware 1060 images inside the kernel. If you want to include just the one for 1061 your wireless card, use the devices iwn4965fw, iwn5000fw or 1062 iwn5150fw. 1063 106420090926: 1065 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1066 into rc.d/netif. The changes are the following: 1067 1068 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1069 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1070 Note that both variables need the "inet6" keyword at the head. 1071 1072 Do not set $ipv6_network_interfaces manually if you do not 1073 understand what you are doing. It is not needed in most cases. 1074 1075 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1076 they are obsolete. 1077 1078 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1079 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1080 1081 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1082 all configured interfaces have "inet6 accept_rtadv" in the 1083 $ifconfig_IF_ipv6. These are for backward compatibility. 1084 1085 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1086 functionality of interfaces with no corresponding 1087 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1088 and the default address selection policy of ip6addrctl(8) 1089 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1090 Note that if you want to configure IPv6 functionality on the 1091 disabled interfaces after boot, first you need to clear the flag by 1092 using ifconfig(8) like: 1093 1094 ifconfig em0 inet6 -ifdisabled 1095 1096 If YES, the default address selection policy is set as 1097 IPv6-preferred. 1098 1099 The default value of $ipv6_prefer is NO. 1100 1101 4. If your system need to receive Router Advertisement messages, 1102 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1103 scripts automatically invoke rtsol(8) when the interface becomes 1104 UP. The Router Advertisement messages are used for SLAAC 1105 (State-Less Address AutoConfiguration). 1106 110720090922: 1108 802.11s D3.03 support was committed. This is incompatible with the 1109 previous code, which was based on D3.0. 1110 111120090912: 1112 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1113 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1114 control whether accepting Router Advertisement messages or not. 1115 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1116 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1117 The ifconfig(8) utility now supports these flags. 1118 111920090910: 1120 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1121 mount(8) and -a option for df(1) to see them. 1122 112320090825: 1124 The old tunable hw.bus.devctl_disable has been superseded by 1125 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1126 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1127 is 1000. 1128 112920090813: 1130 Remove the option STOP_NMI. The default action is now to use NMI only 1131 for KDB via the newly introduced function stop_cpus_hard() and 1132 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1133 113420090803: 1135 The stable/8 branch created in subversion. This corresponds to the 1136 RELENG_8 branch in CVS. 1137 113820090719: 1139 Bump the shared library version numbers for all libraries that do not 1140 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1141 __FreeBSD_version to 800105. 1142 114320090714: 1144 Due to changes in the implementation of virtual network stack support, 1145 all network-related kernel modules must be recompiled. As this change 1146 breaks the ABI, bump __FreeBSD_version to 800104. 1147 114820090713: 1149 The TOE interface to the TCP syncache has been modified to remove 1150 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1151 The cxgb driver is the only TOE consumer affected by this change, and 1152 needs to be recompiled along with the kernel. As this change breaks 1153 the ABI, bump __FreeBSD_version to 800103. 1154 115520090712: 1156 Padding has been added to struct tcpcb, sackhint and tcpstat in 1157 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1158 maintaining the ABI. However, this change breaks the ABI, so bump 1159 __FreeBSD_version to 800102. User space tools that rely on the size of 1160 any of these structs (e.g. sockstat) need to be recompiled. 1161 116220090630: 1163 The NFS_LEGACYRPC option has been removed along with the old kernel 1164 RPC implementation that this option selected. Kernel configurations 1165 may need to be adjusted. 1166 116720090629: 1168 The network interface device nodes at /dev/net/<interface> have been 1169 removed. All ioctl operations can be performed the normal way using 1170 routing sockets. The kqueue functionality can generally be replaced 1171 with routing sockets. 1172 117320090628: 1174 The documentation from the FreeBSD Documentation Project (Handbook, 1175 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1176 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1177 117820090624: 1179 The ABI of various structures related to the SYSV IPC API have been 1180 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1181 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1182 800100. 1183 118420090622: 1185 Layout of struct vnet has changed as routing related variables were 1186 moved to their own Vimage module. Modules need to be recompiled. Bump 1187 __FreeBSD_version to 800099. 1188 118920090619: 1190 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1191 respectively. As long as no more than 16 groups per process are used, 1192 no changes should be visible. When more than 16 groups are used, old 1193 binaries may fail if they call getgroups() or getgrouplist() with 1194 statically sized storage. Recompiling will work around this, but 1195 applications should be modified to use dynamically allocated storage 1196 for group arrays as POSIX.1-2008 does not cap an implementation's 1197 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1198 1199 NFS and portalfs mounts may also be affected as the list of groups is 1200 truncated to 16. Users of NFS who use more than 16 groups, should 1201 take care that negative group permissions are not used on the exported 1202 file systems as they will not be reliable unless a GSSAPI based 1203 authentication method is used. 1204 120520090616: 1206 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1207 option compiles in the support for adaptive spinning for lockmgrs 1208 which want to enable it. The lockinit() function now accepts the flag 1209 LK_ADAPTIVE in order to make the lock object subject to adaptive 1210 spinning when both held in write and read mode. 1211 121220090613: 1213 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1214 changed. User applications that use this ioctl need to be rebuilt. 1215 121620090611: 1217 The layout of struct thread has changed. Kernel and modules need to 1218 be rebuilt. 1219 122020090608: 1221 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1222 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1223 122420090602: 1225 window(1) has been removed from the base system. It can now be 1226 installed from ports. The port is called misc/window. 1227 122820090601: 1229 The way we are storing and accessing `routing table' entries has 1230 changed. Programs reading the FIB, like netstat, need to be 1231 re-compiled. 1232 123320090601: 1234 A new netisr implementation has been added for FreeBSD 8. Network 1235 file system modules, such as igmp, ipdivert, and others, should be 1236 rebuilt. 1237 Bump __FreeBSD_version to 800096. 1238 123920090530: 1240 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1241 more valid. 1242 124320090530: 1244 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1245 Bump __FreeBSD_version to 800094. 1246 124720090529: 1248 Add mnt_xflag field to 'struct mount'. File system modules need to be 1249 rebuilt. 1250 Bump __FreeBSD_version to 800093. 1251 125220090528: 1253 The compiling option ADAPTIVE_SX has been retired while it has been 1254 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1255 The KPI for sx_init_flags() changes as accepting flags: 1256 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1257 been introduced in order to handle the reversed logic. 1258 Bump __FreeBSD_version to 800092. 1259 126020090527: 1261 Add support for hierarchical jails. Remove global securelevel. 1262 Bump __FreeBSD_version to 800091. 1263 126420090523: 1265 The layout of struct vnet_net has changed, therefore modules 1266 need to be rebuilt. 1267 Bump __FreeBSD_version to 800090. 1268 126920090523: 1270 The newly imported zic(8) produces a new format in the output. Please 1271 run tzsetup(8) to install the newly created data to /etc/localtime. 1272 127320090520: 1274 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1275 hw.usb.* and is now consistent again with previous releases. 1276 127720090520: 1278 802.11 monitor mode support was revised and driver api's were changed. 1279 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1280 of DLT_IEEE802_11. No user-visible data structures were changed but 1281 applications that use DLT_IEEE802_11 may require changes. 1282 Bump __FreeBSD_version to 800088. 1283 128420090430: 1285 The layout of the following structs has changed: sysctl_oid, 1286 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1287 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1288 panics may be experienced. World rebuild is required for 1289 correctly checking networking state from userland. 1290 Bump __FreeBSD_version to 800085. 1291 129220090429: 1293 MLDv2 and Source-Specific Multicast (SSM) have been merged 1294 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1295 The implementation of SSM within FreeBSD's IPv6 stack closely 1296 follows the IPv4 implementation. 1297 1298 For kernel developers: 1299 1300 * The most important changes are that the ip6_output() and 1301 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1302 and this lock has been downgraded to a non-recursive mutex. 1303 1304 * As with the changes to the IPv4 stack to support SSM, filtering 1305 of inbound multicast traffic must now be performed by transport 1306 protocols within the IPv6 stack. This does not apply to TCP and 1307 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1308 1309 * The KPIs used by IPv6 multicast are similar to those used by 1310 the IPv4 stack, with the following differences: 1311 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1312 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1313 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1314 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1315 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1316 for MLDv1 have an additional 'timer' argument which is used to 1317 jitter the initial membership report for the solicited-node 1318 multicast membership on-link. 1319 * This is not strictly needed for MLDv2, which already jitters 1320 its report transmissions. However, the 'timer' argument is 1321 preserved in case MLDv1 is active on the interface. 1322 1323 * The KAME linked-list based IPv6 membership implementation has 1324 been refactored to use a vector similar to that used by the IPv4 1325 stack. 1326 Code which maintains a list of its own multicast memberships 1327 internally, e.g. carp, has been updated to reflect the new 1328 semantics. 1329 1330 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1331 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1332 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1333 implementation constraint which needs to be addressed in HEAD. 1334 1335 For application developers: 1336 1337 * The changes are broadly similar to those made for the IPv4 1338 stack. 1339 1340 * The use of IPv4 and IPv6 multicast socket options on the same 1341 socket, using mapped addresses, HAS NOT been tested or supported. 1342 1343 * There are a number of issues with the implementation of various 1344 IPv6 multicast APIs which need to be resolved in the API surface 1345 before the implementation is fully compatible with KAME userland 1346 use, and these are mostly to do with interface index treatment. 1347 1348 * The literature available discusses the use of either the delta / ASM 1349 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1350 using setsourcefilter(3)/getsourcefilter(3). For more information 1351 please refer to RFC 3768, 'Socket Interface Extensions for 1352 Multicast Source Filters'. 1353 1354 * Applications which use the published RFC 3678 APIs should be fine. 1355 1356 For systems administrators: 1357 1358 * The mtest(8) utility has been refactored to support IPv6, in 1359 addition to IPv4. Interface addresses are no longer accepted 1360 as arguments, their names must be used instead. The utility 1361 will map the interface name to its first IPv4 address as 1362 returned by getifaddrs(3). 1363 1364 * The ifmcstat(8) utility has also been updated to print the MLDv2 1365 endpoint state and source filter lists via sysctl(3). 1366 1367 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1368 loopback of IPv6 multicast datagrams by default; it defaults to 1 1369 to preserve the existing behaviour. Disabling multicast loopback is 1370 recommended for optimal system performance. 1371 1372 * The IPv6 MROUTING code has been changed to examine this sysctl 1373 instead of attempting to perform a group lookup before looping 1374 back forwarded datagrams. 1375 1376 Bump __FreeBSD_version to 800084. 1377 137820090422: 1379 Implement low-level Bluetooth HCI API. 1380 Bump __FreeBSD_version to 800083. 1381 138220090419: 1383 The layout of struct malloc_type, used by modules to register new 1384 memory allocation types, has changed. Most modules will need to 1385 be rebuilt or panics may be experienced. 1386 Bump __FreeBSD_version to 800081. 1387 138820090415: 1389 Anticipate overflowing inp_flags - add inp_flags2. 1390 This changes most offsets in inpcb, so checking v4 connection 1391 state will require a world rebuild. 1392 Bump __FreeBSD_version to 800080. 1393 139420090415: 1395 Add an llentry to struct route and struct route_in6. Modules 1396 embedding a struct route will need to be recompiled. 1397 Bump __FreeBSD_version to 800079. 1398 139920090414: 1400 The size of rt_metrics_lite and by extension rtentry has changed. 1401 Networking administration apps will need to be recompiled. 1402 The route command now supports show as an alias for get, weighting 1403 of routes, sticky and nostick flags to alter the behavior of stateful 1404 load balancing. 1405 Bump __FreeBSD_version to 800078. 1406 140720090408: 1408 Do not use Giant for kbdmux(4) locking. This is wrong and 1409 apparently causing more problems than it solves. This will 1410 re-open the issue where interrupt handlers may race with 1411 kbdmux(4) in polling mode. Typical symptoms include (but 1412 not limited to) duplicated and/or missing characters when 1413 low level console functions (such as gets) are used while 1414 interrupts are enabled (for example geli password prompt, 1415 mountroot prompt etc.). Disabling kbdmux(4) may help. 1416 141720090407: 1418 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1419 kernel modules referencing any of the above need to be recompiled. 1420 Bump __FreeBSD_version to 800075. 1421 142220090320: 1423 GEOM_PART has become the default partition slicer for storage devices, 1424 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1425 introduces some changes: 1426 1427 MSDOS/EBR: the devices created from MSDOS extended partition entries 1428 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1429 to devices with offset-based names. fstabs may need to be modified. 1430 1431 BSD: the "geometry does not match label" warning is harmless in most 1432 cases but it points to problems in file system misalignment with 1433 disk geometry. The "c" partition is now implicit, covers the whole 1434 top-level drive and cannot be (mis)used by users. 1435 1436 General: Kernel dumps are now not allowed to be written to devices 1437 whose partition types indicate they are meant to be used for file 1438 systems (or, in case of MSDOS partitions, as something else than 1439 the "386BSD" type). 1440 1441 Most of these changes date approximately from 200812. 1442 144320090319: 1444 The uscanner(4) driver has been removed from the kernel. This follows 1445 Linux removing theirs in 2.6 and making libusb the default interface 1446 (supported by sane). 1447 144820090319: 1449 The multicast forwarding code has been cleaned up. netstat(1) 1450 only relies on KVM now for printing bandwidth upcall meters. 1451 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1452 ip6_mroute_mod respectively. The config(5) options for statically 1453 compiling this code remain the same, i.e. 'options MROUTING'. 1454 145520090315: 1456 Support for the IFF_NEEDSGIANT network interface flag has been 1457 removed, which means that non-MPSAFE network device drivers are no 1458 longer supported. In particular, if_ar, if_sr, and network device 1459 drivers from the old (legacy) USB stack can no longer be built or 1460 used. 1461 146220090313: 1463 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1464 a bunch of new language catalog files have also been added. 1465 This means that some common libc messages are now localized and 1466 they depend on the LC_MESSAGES environmental variable. 1467 146820090313: 1469 The k8temp(4) driver has been renamed to amdtemp(4) since 1470 support for Family 10 and Family 11 CPU families was added. 1471 147220090309: 1473 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1474 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1475 1476 For kernel developers, the most important changes are that the 1477 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1478 and this lock has been downgraded to a non-recursive mutex. 1479 1480 Transport protocols (UDP, Raw IP) are now responsible for filtering 1481 inbound multicast traffic according to group membership and source 1482 filters. The imo_multicast_filter() KPI exists for this purpose. 1483 Transports which do not use multicast (SCTP, TCP) already reject 1484 multicast by default. Forwarding and receive performance may improve 1485 as a mutex acquisition is no longer needed in the ip_input() 1486 low-level input path. in_addmulti() and in_delmulti() are shimmed 1487 to new KPIs which exist to support SSM in-kernel. 1488 1489 For application developers, it is recommended that loopback of 1490 multicast datagrams be disabled for best performance, as this 1491 will still cause the lock to be taken for each looped-back 1492 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1493 be tuned to 0 to disable loopback by default; it defaults to 1 1494 to preserve the existing behaviour. 1495 1496 For systems administrators, to obtain best performance with 1497 multicast reception and multiple groups, it is always recommended 1498 that a card with a suitably precise hash filter is used. Hash 1499 collisions will still result in the lock being taken within the 1500 transport protocol input path to check group membership. 1501 1502 If deploying FreeBSD in an environment with IGMP snooping switches, 1503 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1504 enabled; this forces 224.0.0.0/24 group membership to be announced 1505 via IGMP. 1506 1507 The size of 'struct igmpstat' has changed; netstat needs to be 1508 recompiled to reflect this. 1509 Bump __FreeBSD_version to 800070. 1510 151120090309: 1512 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1513 updated to use it. This requires a buildworld/installworld in order to 1514 update the library and dependencies (usbconfig, etc). Its advisable to 1515 rebuild all ports which uses libusb. More specific directions are given 1516 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1517 libusb are no longer required and can be removed. 1518 151920090302: 1520 A workaround is committed to allow the creation of System V shared 1521 memory segment of size > 2 GB on the 64-bit architectures. 1522 Due to a limitation of the existing ABI, the shm_segsz member 1523 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1524 wrong for large segments. Note that limits must be explicitly 1525 raised to allow such segments to be created. 1526 152720090301: 1528 The layout of struct ifnet has changed, requiring a rebuild of all 1529 network device driver modules. 1530 153120090227: 1532 The /dev handling for the new USB stack has changed, a 1533 buildworld/installworld is required for libusb20. 1534 153520090223: 1536 The new USB2 stack has now been permanently moved in and all kernel and 1537 module names reverted to their previous values (eg, usb, ehci, ohci, 1538 ums, ...). The old usb stack can be compiled in by prefixing the name 1539 with the letter 'o', the old usb modules have been removed. 1540 Updating entry 20090216 for xorg and 20090215 for libmap may still 1541 apply. 1542 154320090217: 1544 The rc.conf(5) option if_up_delay has been renamed to 1545 defaultroute_delay to better reflect its purpose. If you have 1546 customized this setting in /etc/rc.conf you need to update it to 1547 use the new name. 1548 154920090216: 1550 xorg 7.4 wants to configure its input devices via hald which does not 1551 yet work with USB2. If the keyboard/mouse does not work in xorg then 1552 add 1553 Option "AllowEmptyInput" "off" 1554 to your ServerLayout section. This will cause X to use the configured 1555 kbd and mouse sections from your xorg.conf. 1556 155720090215: 1558 The GENERIC kernels for all architectures now default to the new USB2 1559 stack. No kernel config options or code have been removed so if a 1560 problem arises please report it and optionally revert to the old USB 1561 stack. If you are loading USB kernel modules or have a custom kernel 1562 that includes GENERIC then ensure that usb names are also changed over, 1563 eg uftdi -> usb2_serial_ftdi. 1564 1565 Older programs linked against the ports libusb 0.1 need to be 1566 redirected to the new stack's libusb20. /etc/libmap.conf can 1567 be used for this: 1568 # Map old usb library to new one for usb2 stack 1569 libusb-0.1.so.8 libusb20.so.1 1570 157120090209: 1572 All USB ethernet devices now attach as interfaces under the name ueN 1573 (eg. ue0). This is to provide a predictable name as vendors often 1574 change usb chipsets in a product without notice. 1575 157620090203: 1577 The ichsmb(4) driver has been changed to require SMBus slave 1578 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1579 All of the other SMBus controller drivers require left-justified 1580 slave addresses, so this change makes all the drivers provide the 1581 same interface. 1582 158320090201: 1584 INET6 statistics (struct ip6stat) was updated. 1585 netstat(1) needs to be recompiled. 1586 158720090119: 1588 NTFS has been removed from GENERIC kernel on amd64 to match 1589 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1590 will load ntfs.ko module automatically when NTFS support is 1591 actually needed, unless ntfs.ko is not installed or security 1592 level prohibits loading kernel modules. If either is the case, 1593 "options NTFS" has to be added into kernel config. 1594 159520090115: 1596 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1597 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1598 800061. User space tools that rely on the size of struct tcpcb in 1599 tcp_var.h (e.g. sockstat) need to be recompiled. 1600 160120081225: 1602 ng_tty(4) module updated to match the new TTY subsystem. 1603 Due to API change, user-level applications must be updated. 1604 New API support added to mpd5 CVS and expected to be present 1605 in next mpd5.3 release. 1606 160720081219: 1608 With __FreeBSD_version 800060 the makefs tool is part of 1609 the base system (it was a port). 1610 161120081216: 1612 The afdata and ifnet locks have been changed from mutexes to 1613 rwlocks, network modules will need to be re-compiled. 1614 161520081214: 1616 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1617 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1618 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1619 architecture and 40 bytes on 64-bit architecture. The userland 1620 applications "arp" and "ndp" have been updated accordingly. 1621 The output from "netstat -r" shows only routing entries and 1622 none of the L2 information. 1623 162420081130: 1625 __FreeBSD_version 800057 marks the switchover from the 1626 binary ath hal to source code. Users must add the line: 1627 1628 options AH_SUPPORT_AR5416 1629 1630 to their kernel config files when specifying: 1631 1632 device ath_hal 1633 1634 The ath_hal module no longer exists; the code is now compiled 1635 together with the driver in the ath module. It is now 1636 possible to tailor chip support (i.e. reduce the set of chips 1637 and thereby the code size); consult ath_hal(4) for details. 1638 163920081121: 1640 __FreeBSD_version 800054 adds memory barriers to 1641 <machine/atomic.h>, new interfaces to ifnet to facilitate 1642 multiple hardware transmit queues for cards that support 1643 them, and a lock-less ring-buffer implementation to 1644 enable drivers to more efficiently manage queueing of 1645 packets. 1646 164720081117: 1648 A new version of ZFS (version 13) has been merged to -HEAD. 1649 This version has zpool attribute "listsnapshots" off by 1650 default, which means "zfs list" does not show snapshots, 1651 and is the same as Solaris behavior. 1652 165320081028: 1654 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1655 165620081009: 1657 The uhci, ohci, ehci and slhci USB Host controller drivers have 1658 been put into separate modules. If you load the usb module 1659 separately through loader.conf you will need to load the 1660 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1661 controller add the following to loader.conf: 1662 1663 uhci_load="YES" 1664 ehci_load="YES" 1665 166620081009: 1667 The ABI used by the PMC toolset has changed. Please keep 1668 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1669 sync. 1670 167120081009: 1672 atapci kernel module now includes only generic PCI ATA 1673 driver. AHCI driver moved to ataahci kernel module. 1674 All vendor-specific code moved into separate kernel modules: 1675 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1676 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1677 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1678 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1679 168020080820: 1681 The TTY subsystem of the kernel has been replaced by a new 1682 implementation, which provides better scalability and an 1683 improved driver model. Most common drivers have been migrated to 1684 the new TTY subsystem, while others have not. The following 1685 drivers have not yet been ported to the new TTY layer: 1686 1687 PCI/ISA: 1688 cy, digi, rc, rp, sio 1689 1690 USB: 1691 ubser, ucycom 1692 1693 Line disciplines: 1694 ng_h4, ng_tty, ppp, sl, snp 1695 1696 Adding these drivers to your kernel configuration file shall 1697 cause compilation to fail. 1698 169920080818: 1700 ntpd has been upgraded to 4.2.4p5. 1701 170220080801: 1703 OpenSSH has been upgraded to 5.1p1. 1704 1705 For many years, FreeBSD's version of OpenSSH preferred DSA 1706 over RSA for host and user authentication keys. With this 1707 upgrade, we've switched to the vendor's default of RSA over 1708 DSA. This may cause upgraded clients to warn about unknown 1709 host keys even for previously known hosts. Users should 1710 follow the usual procedure for verifying host keys before 1711 accepting the RSA key. 1712 1713 This can be circumvented by setting the "HostKeyAlgorithms" 1714 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1715 command line. 1716 1717 Please note that the sequence of keys offered for 1718 authentication has been changed as well. You may want to 1719 specify IdentityFile in a different order to revert this 1720 behavior. 1721 172220080713: 1723 The sio(4) driver has been removed from the i386 and amd64 1724 kernel configuration files. This means uart(4) is now the 1725 default serial port driver on those platforms as well. 1726 1727 To prevent collisions with the sio(4) driver, the uart(4) driver 1728 uses different names for its device nodes. This means the 1729 onboard serial port will now most likely be called "ttyu0" 1730 instead of "ttyd0". You may need to reconfigure applications to 1731 use the new device names. 1732 1733 When using the serial port as a boot console, be sure to update 1734 /boot/device.hints and /etc/ttys before booting the new kernel. 1735 If you forget to do so, you can still manually specify the hints 1736 at the loader prompt: 1737 1738 set hint.uart.0.at="isa" 1739 set hint.uart.0.port="0x3F8" 1740 set hint.uart.0.flags="0x10" 1741 set hint.uart.0.irq="4" 1742 boot -s 1743 174420080609: 1745 The gpt(8) utility has been removed. Use gpart(8) to partition 1746 disks instead. 1747 174820080603: 1749 The version that Linuxulator emulates was changed from 2.4.2 1750 to 2.6.16. If you experience any problems with Linux binaries 1751 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1752 if it fixes the problem contact emulation mailing list. 1753 175420080525: 1755 ISDN4BSD (I4B) was removed from the src tree. You may need to 1756 update a your kernel configuration and remove relevant entries. 1757 175820080509: 1759 I have checked in code to support multiple routing tables. 1760 See the man pages setfib(1) and setfib(2). 1761 This is a hopefully backwards compatible version, 1762 but to make use of it you need to compile your kernel 1763 with options ROUTETABLES=2 (or more up to 16). 1764 176520080420: 1766 The 802.11 wireless support was redone to enable multi-bss 1767 operation on devices that are capable. The underlying device 1768 is no longer used directly but instead wlanX devices are 1769 cloned with ifconfig. This requires changes to rc.conf files. 1770 For example, change: 1771 ifconfig_ath0="WPA DHCP" 1772 to 1773 wlans_ath0=wlan0 1774 ifconfig_wlan0="WPA DHCP" 1775 see rc.conf(5) for more details. In addition, mergemaster of 1776 /etc/rc.d is highly recommended. Simultaneous update of userland 1777 and kernel wouldn't hurt either. 1778 1779 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1780 modules were merged into the base wlan module. All references 1781 to these modules (e.g. in kernel config files) must be removed. 1782 178320080408: 1784 psm(4) has gained write(2) support in native operation level. 1785 Arbitrary commands can be written to /dev/psm%d and status can 1786 be read back from it. Therefore, an application is responsible 1787 for status validation and error recovery. It is a no-op in 1788 other operation levels. 1789 179020080312: 1791 Support for KSE threading has been removed from the kernel. To 1792 run legacy applications linked against KSE libmap.conf may 1793 be used. The following libmap.conf may be used to ensure 1794 compatibility with any prior release: 1795 1796 libpthread.so.1 libthr.so.1 1797 libpthread.so.2 libthr.so.2 1798 libkse.so.3 libthr.so.3 1799 180020080301: 1801 The layout of struct vmspace has changed. This affects libkvm 1802 and any executables that link against libkvm and use the 1803 kvm_getprocs() function. In particular, but not exclusively, 1804 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1805 The effects are minimal, but it's advisable to upgrade world 1806 nonetheless. 1807 180820080229: 1809 The latest em driver no longer has support in it for the 1810 82575 adapter, this is now moved to the igb driver. The 1811 split was done to make new features that are incompatible 1812 with older hardware easier to do. 1813 181420080220: 1815 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1816 likewise the kernel option is now GEOM_LINUX_LVM. 1817 181820080211: 1819 The default NFS mount mode has changed from UDP to TCP for 1820 increased reliability. If you rely on (insecurely) NFS 1821 mounting across a firewall you may need to update your 1822 firewall rules. 1823 182420080208: 1825 Belatedly note the addition of m_collapse for compacting 1826 mbuf chains. 1827 182820080126: 1829 The fts(3) structures have been changed to use adequate 1830 integer types for their members and so to be able to cope 1831 with huge file trees. The old fts(3) ABI is preserved 1832 through symbol versioning in libc, so third-party binaries 1833 using fts(3) should still work, although they will not take 1834 advantage of the extended types. At the same time, some 1835 third-party software might fail to build after this change 1836 due to unportable assumptions made in its source code about 1837 fts(3) structure members. Such software should be fixed 1838 by its vendor or, in the worst case, in the ports tree. 1839 FreeBSD_version 800015 marks this change for the unlikely 1840 case that a portable fix is impossible. 1841 184220080123: 1843 To upgrade to -current after this date, you must be running 1844 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1845 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1846 184720071128: 1848 The ADAPTIVE_GIANT kernel option has been retired because its 1849 functionality is the default now. 1850 185120071118: 1852 The AT keyboard emulation of sunkbd(4) has been turned on 1853 by default. In order to make the special symbols of the Sun 1854 keyboards driven by sunkbd(4) work under X these now have 1855 to be configured the same way as Sun USB keyboards driven 1856 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1857 1858 Option "XkbLayout" "us" 1859 Option "XkbRules" "xorg" 1860 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1861 186220071024: 1863 It has been decided that it is desirable to provide ABI 1864 backwards compatibility to the FreeBSD 4/5/6 versions of the 1865 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1866 broken with the introduction of PCI domain support (see the 1867 20070930 entry). Unfortunately, this required the ABI of 1868 PCIOCGETCONF to be broken again in order to be able to 1869 provide backwards compatibility to the old version of that 1870 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1871 again. As for prominent ports this affects neither pciutils 1872 nor xorg-server this time, the hal port needs to be rebuilt 1873 however. 1874 187520071020: 1876 The misnamed kthread_create() and friends have been renamed 1877 to kproc_create() etc. Many of the callers already 1878 used kproc_start().. 1879 I will return kthread_create() and friends in a while 1880 with implementations that actually create threads, not procs. 1881 Renaming corresponds with version 800002. 1882 188320071010: 1884 RELENG_7 branched. 1885 1886COMMON ITEMS: 1887 1888 General Notes 1889 ------------- 1890 Avoid using make -j when upgrading. While generally safe, there are 1891 sometimes problems using -j to upgrade. If your upgrade fails with 1892 -j, please try again without -j. From time to time in the past there 1893 have been problems using -j with buildworld and/or installworld. This 1894 is especially true when upgrading between "distant" versions (eg one 1895 that cross a major release boundary or several minor releases, or when 1896 several months have passed on the -current branch). 1897 1898 Sometimes, obscure build problems are the result of environment 1899 poisoning. This can happen because the make utility reads its 1900 environment when searching for values for global variables. To run 1901 your build attempts in an "environmental clean room", prefix all make 1902 commands with 'env -i '. See the env(1) manual page for more details. 1903 1904 When upgrading from one major version to another it is generally best 1905 to upgrade to the latest code in the currently installed branch first, 1906 then do an upgrade to the new branch. This is the best-tested upgrade 1907 path, and has the highest probability of being successful. Please try 1908 this approach before reporting problems with a major version upgrade. 1909 1910 When upgrading a live system, having a root shell around before 1911 installing anything can help undo problems. Not having a root shell 1912 around can lead to problems if pam has changed too much from your 1913 starting point to allow continued authentication after the upgrade. 1914 1915 ZFS notes 1916 --------- 1917 When upgrading the boot ZFS pool to a new version, always follow 1918 these two steps: 1919 1920 1.) recompile and reinstall the ZFS boot loader and boot block 1921 (this is part of "make buildworld" and "make installworld") 1922 1923 2.) update the ZFS boot block on your boot drive 1924 1925 The following example updates the ZFS boot block on the first 1926 partition (freebsd-boot) of a GPT partitioned drive ad0: 1927 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1928 1929 Non-boot pools do not need these updates. 1930 1931 To build a kernel 1932 ----------------- 1933 If you are updating from a prior version of FreeBSD (even one just 1934 a few days old), you should follow this procedure. It is the most 1935 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1936 1937 make kernel-toolchain 1938 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1939 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1940 1941 To test a kernel once 1942 --------------------- 1943 If you just want to boot a kernel once (because you are not sure 1944 if it works, or if you want to boot a known bad kernel to provide 1945 debugging information) run 1946 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1947 nextboot -k testkernel 1948 1949 To just build a kernel when you know that it won't mess you up 1950 -------------------------------------------------------------- 1951 This assumes you are already running a CURRENT system. Replace 1952 ${arch} with the architecture of your machine (e.g. "i386", 1953 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1954 1955 cd src/sys/${arch}/conf 1956 config KERNEL_NAME_HERE 1957 cd ../compile/KERNEL_NAME_HERE 1958 make depend 1959 make 1960 make install 1961 1962 If this fails, go to the "To build a kernel" section. 1963 1964 To rebuild everything and install it on the current system. 1965 ----------------------------------------------------------- 1966 # Note: sometimes if you are running current you gotta do more than 1967 # is listed here if you are upgrading from a really old current. 1968 1969 <make sure you have good level 0 dumps> 1970 make buildworld 1971 make kernel KERNCONF=YOUR_KERNEL_HERE 1972 [1] 1973 <reboot in single user> [3] 1974 mergemaster -p [5] 1975 make installworld 1976 mergemaster -i [4] 1977 make delete-old [6] 1978 <reboot> 1979 1980 To cross-install current onto a separate partition 1981 -------------------------------------------------- 1982 # In this approach we use a separate partition to hold 1983 # current's root, 'usr', and 'var' directories. A partition 1984 # holding "/", "/usr" and "/var" should be about 2GB in 1985 # size. 1986 1987 <make sure you have good level 0 dumps> 1988 <boot into -stable> 1989 make buildworld 1990 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1991 <maybe newfs current's root partition> 1992 <mount current's root partition on directory ${CURRENT_ROOT}> 1993 make installworld DESTDIR=${CURRENT_ROOT} 1994 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1995 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1996 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1997 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1998 <reboot into current> 1999 <do a "native" rebuild/install as described in the previous section> 2000 <maybe install compatibility libraries from ports/misc/compat*> 2001 <reboot> 2002 2003 2004 To upgrade in-place from stable to current 2005 ---------------------------------------------- 2006 <make sure you have good level 0 dumps> 2007 make buildworld [9] 2008 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2009 [1] 2010 <reboot in single user> [3] 2011 mergemaster -p [5] 2012 make installworld 2013 mergemaster -i [4] 2014 make delete-old [6] 2015 <reboot> 2016 2017 Make sure that you've read the UPDATING file to understand the 2018 tweaks to various things you need. At this point in the life 2019 cycle of current, things change often and you are on your own 2020 to cope. The defaults can also change, so please read ALL of 2021 the UPDATING entries. 2022 2023 Also, if you are tracking -current, you must be subscribed to 2024 freebsd-current@freebsd.org. Make sure that before you update 2025 your sources that you have read and understood all the recent 2026 messages there. If in doubt, please track -stable which has 2027 much fewer pitfalls. 2028 2029 [1] If you have third party modules, such as vmware, you 2030 should disable them at this point so they don't crash your 2031 system on reboot. 2032 2033 [3] From the bootblocks, boot -s, and then do 2034 fsck -p 2035 mount -u / 2036 mount -a 2037 cd src 2038 adjkerntz -i # if CMOS is wall time 2039 Also, when doing a major release upgrade, it is required that 2040 you boot into single user mode to do the installworld. 2041 2042 [4] Note: This step is non-optional. Failure to do this step 2043 can result in a significant reduction in the functionality of the 2044 system. Attempting to do it by hand is not recommended and those 2045 that pursue this avenue should read this file carefully, as well 2046 as the archives of freebsd-current and freebsd-hackers mailing lists 2047 for potential gotchas. The -U option is also useful to consider. 2048 See mergemaster(8) for more information. 2049 2050 [5] Usually this step is a noop. However, from time to time 2051 you may need to do this if you get unknown user in the following 2052 step. It never hurts to do it all the time. You may need to 2053 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2054 install) after the buildworld before this step if you last updated 2055 from current before 20130425 or from -stable before 20130430. 2056 2057 [6] This only deletes old files and directories. Old libraries 2058 can be deleted by "make delete-old-libs", but you have to make 2059 sure that no program is using those libraries anymore. 2060 2061 [8] In order to have a kernel that can run the 4.x binaries needed to 2062 do an installworld, you must include the COMPAT_FREEBSD4 option in 2063 your kernel. Failure to do so may leave you with a system that is 2064 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2065 required to run the 5.x binaries on more recent kernels. And so on 2066 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2067 2068 Make sure that you merge any new devices from GENERIC since the 2069 last time you updated your kernel config file. 2070 2071 [9] When checking out sources, you must include the -P flag to have 2072 cvs prune empty directories. 2073 2074 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2075 "?=" instead of the "=" assignment operator, so that buildworld can 2076 override the CPUTYPE if it needs to. 2077 2078 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2079 not on the command line, or in /etc/make.conf. buildworld will 2080 warn if it is improperly defined. 2081FORMAT: 2082 2083This file contains a list, in reverse chronological order, of major 2084breakages in tracking -current. It is not guaranteed to be a complete 2085list of such breakages, and only contains entries since October 10, 2007. 2086If you need to see UPDATING entries from before that date, you will need 2087to fetch an UPDATING file from an older FreeBSD release. 2088 2089Copyright information: 2090 2091Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2092 2093Redistribution, publication, translation and use, with or without 2094modification, in full or in part, in any form or format of this 2095document are permitted without further permission from the author. 2096 2097THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2098IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2099WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2100DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2101INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2102(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2103SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2104HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2105STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2106IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2107POSSIBILITY OF SUCH DAMAGE. 2108 2109Contact Warner Losh if you have any questions about your use of 2110this document. 2111 2112$FreeBSD: stable/10/UPDATING 269401 2014-08-01 21:28:58Z rmacklem $ 2113