UPDATING revision 257460
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 1920131031: 20 The default version of mtree is nmtree which is obtained from 21 NetBSD. The output is generally the same, but may vary 22 slightly. If you found you need identical output adding 23 "-F freebsd9" to the command line should do the trick. For the 24 time being, the old mtree is available as fmtree. 25 2620131014: 27 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 28 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 29 1.1.4_8 and verify bsdyml not linked in, before running "make 30 delete-old-libs": 31 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 32 or 33 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 34 3520131010: 36 The rc.d/jail script has been updated to support jail(8) 37 configuration file. The "jail_<jname>_*" rc.conf(5) variables 38 for per-jail configuration are automatically converted to 39 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 40 This is transparently backward compatible. See below about some 41 incompatibilities and rc.conf(5) manual page for more details. 42 43 These variables are now deprecated in favor of jail(8) configuration 44 file. One can use "rc.d/jail config <jname>" command to generate 45 a jail(8) configuration file in /var/run/jail.<jname>.conf without 46 running the jail(8) utility. The default pathname of the 47 configuration file is /etc/jail.conf and can be specified by 48 using $jail_conf or $jail_<jname>_conf variables. 49 50 Please note that jail_devfs_ruleset accepts an integer at 51 this moment. Please consider to rewrite the ruleset name 52 with an integer. 53 5420130930: 55 BIND has been removed from the base system. If all you need 56 is a local resolver, simply enable and start the local_unbound 57 service instead. Otherwise, several versions of BIND are 58 available in the ports tree. 59 6020130916: 61 With the addition of unbound(8), a new unbound user is now 62 required during installworld. "mergemaster -p" can be used to 63 add the user prior to installworld, as documented in the handbook. 64 6520130911: 66 OpenSSH is now built with DNSSEC support, and will by default 67 silently trust signed SSHFP records. This can be controlled with 68 the VerifyHostKeyDNS client configuration setting. DNSSEC support 69 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 70 7120130906: 72 The GNU Compiler Collection and C++ standard library (libstdc++) 73 are no longer built by default on platforms where clang is the system 74 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 75 options in src.conf. 76 7720130905: 78 The PROCDESC kernel option is now part of the GENERIC kernel 79 configuration and is required for the rwhod(8) to work. 80 If you are using custom kernel configuration, you should include 81 'options PROCDESC'. 82 8320130905: 84 The API and ABI related to the Capsicum framework was modified 85 in backward incompatible way. The userland libraries and programs 86 have to be recompiled to work with the new kernel. This includes the 87 following libraries and programs, but the whole buildworld is 88 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 89 kdump, procstat, rwho, rwhod, uniq. 90 9120130903: 92 AES-NI intrinsic support has been added to gcc. The AES-NI module 93 has been updated to use this support. A new gcc is required to build 94 the aesni module on both i386 and amd64. 95 9620130821: 97 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 98 Thus "device padlock_rng" and "device rdrand_rng" should be 99 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 100 10120130813: 102 WITH_ICONV has been split into two feature sets. WITH_ICONV now 103 enables just the iconv* functionality and is now on by default. 104 WITH_LIBICONV_COMPAT enables the libiconv api and link time 105 compatability. Set WITHOUT_ICONV to build the old way. 106 If you have been using WITH_ICONV before, you will very likely 107 need to turn on WITH_LIBICONV_COMPAT. 108 10920130806: 110 INVARIANTS option now enables DEBUG for code with OpenSolaris and 111 Illumos origin, including ZFS. If you have INVARIANTS in your 112 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 113 explicitly. 114 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 115 locks if WITNESS option was set. Because that generated a lot of 116 witness(9) reports and all of them were believed to be false 117 positives, this is no longer done. New option OPENSOLARIS_WITNESS 118 can be used to achieve the previous behavior. 119 12020130806: 121 Timer values in IPv6 data structures now use time_uptime instead 122 of time_second. Although this is not a user-visible functional 123 change, userland utilities which directly use them---ndp(8), 124 rtadvd(8), and rtsold(8) in the base system---need to be updated 125 to r253970 or later. 126 12720130802: 128 find -delete can now delete the pathnames given as arguments, 129 instead of only files found below them or if the pathname did 130 not contain any slashes. Formerly, the following error message 131 would result: 132 133 find: -delete: <path>: relative path potentially not safe 134 135 Deleting the pathnames given as arguments can be prevented 136 without error messages using -mindepth 1 or by changing 137 directory and passing "." as argument to find. This works in the 138 old as well as the new version of find. 139 14020130726: 141 Behavior of devfs rules path matching has been changed. 142 Pattern is now always matched against fully qualified devfs 143 path and slash characters must be explicitly matched by 144 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 145 subdirectories must be reviewed. 146 14720130716: 148 The default ARM ABI has changed to the ARM EABI. The old ABI is 149 incompatible with the ARM EABI and all programs and modules will 150 need to be rebuilt to work with a new kernel. 151 152 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 153 154 NOTE: Support for the old ABI will be removed in the future and 155 users are advised to upgrade. 156 15720130709: 158 pkg_install has been disconnected from the build if you really need it 159 you should add WITH_PKGTOOLS in your src.conf(5). 160 16120130709: 162 Most of network statistics structures were changed to be able 163 keep 64-bits counters. Thus all tools, that work with networking 164 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 165 16620130629: 167 Fix targets that run multiple make's to use && rather than ; 168 so that subsequent steps depend on success of previous. 169 170 NOTE: if building 'universe' with -j* on stable/8 or stable/9 171 it would be better to start the build using bmake, to avoid 172 overloading the machine. 173 17420130618: 175 Fix a bug that allowed a tracing process (e.g. gdb) to write 176 to a memory-mapped file in the traced process's address space 177 even if neither the traced process nor the tracing process had 178 write access to that file. 179 18020130615: 181 CVS has been removed from the base system. An exact copy 182 of the code is available from the devel/cvs port. 183 18420130613: 185 Some people report the following error after the switch to bmake: 186 187 make: illegal option -- J 188 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 189 ... 190 *** [buildworld] Error code 2 191 192 this likely due to an old instance of make in 193 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 194 which src/Makefile will use that blindly, if it exists, so if 195 you see the above error: 196 197 rm -rf `make -V MAKEPATH` 198 199 should resolve it. 200 20120130516: 202 Use bmake by default. 203 Whereas before one could choose to build with bmake via 204 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 205 make. The goal is to remove these knobs for 10-RELEASE. 206 207 It is worth noting that bmake (like gmake) treats the command 208 line as the unit of failure, rather than statements within the 209 command line. Thus '(cd some/where && dosomething)' is safer 210 than 'cd some/where; dosomething'. The '()' allows consistent 211 behavior in parallel build. 212 21320130429: 214 Fix a bug that allows NFS clients to issue READDIR on files. 215 21620130426: 217 The WITHOUT_IDEA option has been removed because 218 the IDEA patent expired. 219 22020130426: 221 The sysctl which controls TRIM support under ZFS has been renamed 222 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 223 enabled by default. 224 22520130425: 226 The mergemaster command now uses the default MAKEOBJDIRPREFIX 227 rather than creating it's own in the temporary directory in 228 order allow access to bootstrapped versions of tools such as 229 install and mtree. When upgrading from version of FreeBSD where 230 the install command does not support -l, you will need to 231 install a new mergemaster command if mergemaster -p is required. 232 This can be accomplished with the command (cd src/usr.sbin/mergemaster 233 && make install). 234 23520130404: 236 Legacy ATA stack, disabled and replaced by new CAM-based one since 237 FreeBSD 9.0, completely removed from the sources. Kernel modules 238 atadisk and atapi*, user-level tools atacontrol and burncd are 239 removed. Kernel option `options ATA_CAM` is now permanently enabled 240 and removed. 241 24220130319: 243 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 244 and socketpair(2). Software, in particular Kerberos, may 245 automatically detect and use these during building. The resulting 246 binaries will not work on older kernels. 247 24820130308: 249 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 250 information, see the respective 20130304 entry). 251 25220130304: 253 Recent commits to callout(9) changed the size of struct callout, 254 so the KBI is probably heavily disturbed. Also, some functions 255 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 256 by macros. Every kernel module using it won't load, so rebuild 257 is requested. 258 259 The ctl device has been re-enabled in GENERIC for i386 and amd64, 260 but does not initialize by default (because of the new CTL_DISABLE 261 option) to save memory. To re-enable it, remove the CTL_DISABLE 262 option from the kernel config file or set kern.cam.ctl.disable=0 263 in /boot/loader.conf. 264 26520130301: 266 The ctl device has been disabled in GENERIC for i386 and amd64. 267 This was done due to the extra memory being allocated at system 268 initialisation time by the ctl driver which was only used if 269 a CAM target device was created. This makes a FreeBSD system 270 unusable on 128MB or less of RAM. 271 27220130208: 273 A new compression method (lz4) has been merged to -HEAD. Please 274 refer to zpool-features(7) for more information. 275 276 Please refer to the "ZFS notes" section of this file for information 277 on upgrading boot ZFS pools. 278 27920130129: 280 A BSD-licensed patch(1) variant has been added and is installed 281 as bsdpatch, being the GNU version the default patch. 282 To inverse the logic and use the BSD-licensed one as default, 283 while having the GNU version installed as gnupatch, rebuild 284 and install world with the WITH_BSD_PATCH knob set. 285 28620130121: 287 Due to the use of the new -l option to install(1) during build 288 and install, you must take care not to directly set the INSTALL 289 make variable in your /etc/make.conf, /etc/src.conf, or on the 290 command line. If you wish to use the -C flag for all installs 291 you may be able to add INSTALL+=-C to /etc/make.conf or 292 /etc/src.conf. 293 29420130118: 295 The install(1) option -M has changed meaning and now takes an 296 argument that is a file or path to append logs to. In the 297 unlikely event that -M was the last option on the command line 298 and the command line contained at least two files and a target 299 directory the first file will have logs appended to it. The -M 300 option served little practical purpose in the last decade so its 301 use is expected to be extremely rare. 302 30320121223: 304 After switching to Clang as the default compiler some users of ZFS 305 on i386 systems started to experience stack overflow kernel panics. 306 Please consider using 'options KSTACK_PAGES=4' in such configurations. 307 30820121222: 309 GEOM_LABEL now mangles label names read from file system metadata. 310 Mangling affect labels containing spaces, non-printable characters, 311 '%' or '"'. Device names in /etc/fstab and other places may need to 312 be updated. 313 31420121217: 315 By default, only the 10 most recent kernel dumps will be saved. To 316 restore the previous behaviour (no limit on the number of kernel dumps 317 stored in the dump directory) add the following line to /etc/rc.conf: 318 319 savecore_flags="" 320 32120121201: 322 With the addition of auditdistd(8), a new auditdistd user is now 323 required during installworld. "mergemaster -p" can be used to 324 add the user prior to installworld, as documented in the handbook. 325 32620121117: 327 The sin6_scope_id member variable in struct sockaddr_in6 is now 328 filled by the kernel before passing the structure to the userland via 329 sysctl or routing socket. This means the KAME-specific embedded scope 330 id in sin6_addr.s6_addr[2] is always cleared in userland application. 331 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 332 __FreeBSD_version is bumped to 1000025. 333 33420121105: 335 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 336 This means that the world and kernel will be compiled with clang 337 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 338 and /usr/bin/cpp. To disable this behavior and revert to building 339 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 340 of current may need to bootstrap WITHOUT_CLANG first if the clang 341 build fails (its compatibility window doesn't extend to the 9 stable 342 branch point). 343 34420121102: 345 The IPFIREWALL_FORWARD kernel option has been removed. Its 346 functionality now turned on by default. 347 34820121023: 349 The ZERO_COPY_SOCKET kernel option has been removed and 350 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 351 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 352 mechanism which is not safe and may result in kernel crashes. 353 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 354 driver supports disposeable external page sized mbuf storage. 355 Proper replacements for both zero-copy mechanisms are under 356 consideration and will eventually lead to complete removal 357 of the two kernel options. 358 35920121023: 360 The IPv4 network stack has been converted to network byte 361 order. The following modules need to be recompiled together 362 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 363 pf(4), ipfw(4), ng_ipfw(4), stf(4). 364 36520121022: 366 Support for non-MPSAFE filesystems was removed from VFS. The 367 VFS_VERSION was bumped, all filesystem modules shall be 368 recompiled. 369 37020121018: 371 All the non-MPSAFE filesystems have been disconnected from 372 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 373 portalfs, smbfs, xfs. 374 37520121016: 376 The interface cloning API and ABI has changed. The following 377 modules need to be recompiled together with kernel: 378 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 379 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 380 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 381 38220121015: 383 The sdhci driver was split in two parts: sdhci (generic SD Host 384 Controller logic) and sdhci_pci (actual hardware driver). 385 No kernel config modifications are required, but if you 386 load sdhc as a module you must switch to sdhci_pci instead. 387 38820121014: 389 Import the FUSE kernel and userland support into base system. 390 39120121013: 392 The GNU sort(1) program has been removed since the BSD-licensed 393 sort(1) has been the default for quite some time and no serious 394 problems have been reported. The corresponding WITH_GNU_SORT 395 knob has also gone. 396 39720121006: 398 The pfil(9) API/ABI for AF_INET family has been changed. Packet 399 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 400 with new kernel. 401 40220121001: 403 The net80211(4) ABI has been changed to allow for improved driver 404 PS-POLL and power-save support. All wireless drivers need to be 405 recompiled to work with the new kernel. 406 40720120913: 408 The random(4) support for the VIA hardware random number 409 generator (`PADLOCK') is no longer enabled unconditionally. 410 Add the padlock_rng device in the custom kernel config if 411 needed. The GENERIC kernels on i386 and amd64 do include the 412 device, so the change only affects the custom kernel 413 configurations. 414 41520120908: 416 The pf(4) packet filter ABI has been changed. pfctl(8) and 417 snmp_pf module need to be recompiled to work with new kernel. 418 41920120828: 420 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 421 to -HEAD. Pools that have empty_bpobj in active state can not be 422 imported read-write with ZFS implementations that do not support 423 this feature. For more information read the zpool-features(5) 424 manual page. 425 42620120727: 427 The sparc64 ZFS loader has been changed to no longer try to auto- 428 detect ZFS providers based on diskN aliases but now requires these 429 to be explicitly listed in the OFW boot-device environment variable. 430 43120120712: 432 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 433 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 434 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 435 43620120712: 437 The following sysctls and tunables have been renamed for consistency 438 with other variables: 439 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 440 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 441 44220120628: 443 The sort utility has been replaced with BSD sort. For now, GNU sort 444 is also available as "gnusort" or the default can be set back to 445 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 446 installed as "bsdsort". 447 44820120611: 449 A new version of ZFS (pool version 5000) has been merged to -HEAD. 450 Starting with this version the old system of ZFS pool versioning 451 is superseded by "feature flags". This concept enables forward 452 compatibility against certain future changes in functionality of ZFS 453 pools. The first read-only compatible "feature flag" for ZFS pools 454 is named "com.delphix:async_destroy". For more information 455 read the new zpool-features(5) manual page. 456 Please refer to the "ZFS notes" section of this file for information 457 on upgrading boot ZFS pools. 458 45920120417: 460 The malloc(3) implementation embedded in libc now uses sources imported 461 as contrib/jemalloc. The most disruptive API change is to 462 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 463 delete it prior to installworld, and optionally re-create it using the 464 new format after rebooting. See malloc.conf(5) for details 465 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 466 NAMESPACE section). 467 46820120328: 469 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 470 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 471 now spelled mips. This is to aid compatibility with third-party 472 software that expects this naming scheme in uname(3). Little-endian 473 settings are unchanged. If you are updating a big-endian mips64 machine 474 from before this change, you may need to set MACHINE_ARCH=mips64 in 475 your environment before the new build system will recognize your machine. 476 47720120306: 478 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 479 platforms. 480 48120120229: 482 Now unix domain sockets behave "as expected" on nullfs(5). Previously 483 nullfs(5) did not pass through all behaviours to the underlying layer, 484 as a result if we bound to a socket on the lower layer we could connect 485 only to the lower path; if we bound to the upper layer we could connect 486 only to the upper path. The new behavior is one can connect to both the 487 lower and the upper paths regardless what layer path one binds to. 488 48920120211: 490 The getifaddrs upgrade path broken with 20111215 has been restored. 491 If you have upgraded in between 20111215 and 20120209 you need to 492 recompile libc again with your kernel. You still need to recompile 493 world to be able to configure CARP but this restriction already 494 comes from 20111215. 495 49620120114: 497 The set_rcvar() function has been removed from /etc/rc.subr. All 498 base and ports rc.d scripts have been updated, so if you have a 499 port installed with a script in /usr/local/etc/rc.d you can either 500 hand-edit the rcvar= line, or reinstall the port. 501 502 An easy way to handle the mass-update of /etc/rc.d: 503 rm /etc/rc.d/* && mergemaster -i 504 50520120109: 506 panic(9) now stops other CPUs in the SMP systems, disables interrupts 507 on the current CPU and prevents other threads from running. 508 This behavior can be reverted using the kern.stop_scheduler_on_panic 509 tunable/sysctl. 510 The new behavior can be incompatible with kern.sync_on_panic. 511 51220111215: 513 The carp(4) facility has been changed significantly. Configuration 514 of the CARP protocol via ifconfig(8) has changed, as well as format 515 of CARP events submitted to devd(8) has changed. See manual pages 516 for more information. The arpbalance feature of carp(4) is currently 517 not supported anymore. 518 519 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 520 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 521 need to be recompiled. 522 52320111122: 524 The acpi_wmi(4) status device /dev/wmistat has been renamed to 525 /dev/wmistat0. 526 52720111108: 528 The option VFS_ALLOW_NONMPSAFE option has been added in order to 529 explicitely support non-MPSAFE filesystems. 530 It is on by default for all supported platform at this present 531 time. 532 53320111101: 534 The broken amd(4) driver has been replaced with esp(4) in the amd64, 535 i386 and pc98 GENERIC kernel configuration files. 536 53720110930: 538 sysinstall has been removed 539 54020110923: 541 The stable/9 branch created in subversion. This corresponds to the 542 RELENG_9 branch in CVS. 543 54420110913: 545 This commit modifies vfs_register() so that it uses a hash 546 calculation to set vfc_typenum, which is enabled by default. 547 The first time a system is booted after this change, the 548 vfc_typenum values will change for all file systems. The 549 main effect of this is a change to the NFS server file handles 550 for file systems that use vfc_typenum in their fsid, such as ZFS. 551 It will, however, prevent vfc_typenum from changing when file 552 systems are loaded in a different order for subsequent reboots. 553 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 554 until you are ready to remount all NFS clients after a reboot. 555 55620110828: 557 Bump the shared library version numbers for libraries that 558 do not use symbol versioning, have changed the ABI compared 559 to stable/8 and which shared library version was not bumped. 560 Done as part of 9.0-RELEASE cycle. 561 56220110815: 563 During the merge of Capsicum features, the fget(9) KPI was modified. 564 This may require the rebuilding of out-of-tree device drivers -- 565 issues have been reported specifically with the nVidia device driver. 566 __FreeBSD_version is bumped to 900041. 567 568 Also, there is a period between 20110811 and 20110814 where the 569 special devices /dev/{stdin,stdout,stderr} did not work correctly. 570 Building world from a kernel during that window may not work. 571 57220110628: 573 The packet filter (pf) code has been updated to OpenBSD 4.5. 574 You need to update userland tools to be in sync with kernel. 575 This update breaks backward compatibility with earlier pfsync(4) 576 versions. Care must be taken when updating redundant firewall setups. 577 57820110608: 579 The following sysctls and tunables are retired on x86 platforms: 580 machdep.hlt_cpus 581 machdep.hlt_logical_cpus 582 The following sysctl is retired: 583 machdep.hyperthreading_allowed 584 The sysctls were supposed to provide a way to dynamically offline and 585 online selected CPUs on x86 platforms, but the implementation has not 586 been reliable especially with SCHED_ULE scheduler. 587 machdep.hyperthreading_allowed tunable is still available to ignore 588 hyperthreading CPUs at OS level. 589 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 590 where X is an APIC ID of a CPU. Be advised, though, that disabling 591 CPUs in non-uniform fashion will result in non-uniform topology and 592 may lead to sub-optimal system performance with SCHED_ULE, which is 593 a default scheduler. 594 59520110607: 596 cpumask_t type is retired and cpuset_t is used in order to describe 597 a mask of CPUs. 598 59920110531: 600 Changes to ifconfig(8) for dynamic address family detection mandate 601 that you are running a kernel of 20110525 or later. Make sure to 602 follow the update procedure to boot a new kernel before installing 603 world. 604 60520110513: 606 Support for sun4v architecture is officially dropped 607 60820110503: 609 Several KPI breaking changes have been committed to the mii(4) layer, 610 the PHY drivers and consequently some Ethernet drivers using mii(4). 611 This means that miibus.ko and the modules of the affected Ethernet 612 drivers need to be recompiled. 613 614 Note to kernel developers: Given that the OUI bit reversion problem 615 was fixed as part of these changes all mii(4) commits related to OUIs, 616 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 617 handling, no longer can be merged verbatim to stable/8 and previous 618 branches. 619 62020110430: 621 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 622 into their kernel configurations along with 'device pci'. 623 62420110427: 625 The default NFS client is now the new NFS client, so fstype "newnfs" 626 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 627 Although mounts via fstype "nfs" will usually work without userland 628 changes, it is recommended that the mount(8) and mount_nfs(8) 629 commands be rebuilt from sources and that a link to mount_nfs called 630 mount_oldnfs be created. The new client is compiled into the 631 kernel with "options NFSCL" and this is needed for diskless root 632 file systems. The GENERIC kernel configs have been changed to use 633 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 634 To use the regular/old client, you can "mount -t oldnfs ...". For 635 a diskless root file system, you must also include a line like: 636 637 vfs.root.mountfrom="oldnfs:" 638 639 in the boot/loader.conf on the root fs on the NFS server to make 640 a diskless root fs use the old client. 641 64220110424: 643 The GENERIC kernels for all architectures now default to the new 644 CAM-based ATA stack. It means that all legacy ATA drivers were 645 removed and replaced by respective CAM drivers. If you are using 646 ATA device names in /etc/fstab or other places, make sure to update 647 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 648 where 'Y's are the sequential numbers starting from zero for each type 649 in order of detection, unless configured otherwise with tunables, 650 see cam(4)). There will be symbolic links created in /dev/ to map 651 old adX devices to the respective adaY. They should provide basic 652 compatibility for file systems mounting in most cases, but they do 653 not support old user-level APIs and do not have respective providers 654 in GEOM. Consider using updated management tools with new device names. 655 656 It is possible to load devices ahci, ata, siis and mvs as modules, 657 but option ATA_CAM should remain in kernel configuration to make ata 658 module work as CAM driver supporting legacy ATA controllers. Device ata 659 still can be used in modular fashion (atacore + ...). Modules atadisk 660 and atapi* are not used and won't affect operation in ATA_CAM mode. 661 Note that to use CAM-based ATA kernel should include CAM devices 662 scbus, pass, da (or explicitly ada), cd and optionally others. All of 663 them are parts of the cam module. 664 665 ataraid(4) functionality is now supported by the RAID GEOM class. 666 To use it you can load geom_raid kernel module and use graid(8) tool 667 for management. Instead of /dev/arX device names, use /dev/raid/rX. 668 669 No kernel config options or code have been removed, so if a problem 670 arises, please report it and optionally revert to the old ATA stack. 671 In order to do it you can remove from the kernel config: 672 options ATA_CAM 673 device ahci 674 device mvs 675 device siis 676 , and instead add back: 677 device atadisk # ATA disk drives 678 device ataraid # ATA RAID drives 679 device atapicd # ATAPI CDROM drives 680 device atapifd # ATAPI floppy drives 681 device atapist # ATAPI tape drives 682 68320110423: 684 The default NFS server has been changed to the new server, which 685 was referred to as the experimental server. If you need to switch 686 back to the old NFS server, you must now put the "-o" option on 687 both the mountd and nfsd commands. This can be done using the 688 mountd_flags and nfs_server_flags rc.conf variables until an 689 update to the rc scripts is committed, which is coming soon. 690 69120110418: 692 The GNU Objective-C runtime library (libobjc), and other Objective-C 693 related components have been removed from the base system. If you 694 require an Objective-C library, please use one of the available ports. 695 69620110331: 697 ath(4) has been split into bus- and device- modules. if_ath contains 698 the HAL, the TX rate control and the network device code. if_ath_pci 699 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 700 contains the AHB glue. Users need to load both if_ath_pci and if_ath 701 in order to use ath on everything else. 702 703 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 704 need to load if_ath and if_ath_pci for ath(4) operation. 705 70620110314: 707 As part of the replacement of sysinstall, the process of building 708 release media has changed significantly. For details, please re-read 709 release(7), which has been updated to reflect the new build process. 710 71120110218: 712 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 713 is the last available version under GPLv2. It brings a number of new 714 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 715 4.1 and SSE 4.2), better support for powerpc64, a number of new 716 directives, and lots of other small improvements. See the ChangeLog 717 file in contrib/binutils for the full details. 718 71920110218: 720 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 721 compliant, and will now use half of hash for authentication. 722 This will break interoperability with all stacks (including all 723 actual FreeBSD versions) who implement 724 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 725 authentication). 726 The only workaround with such peers is to use another HMAC 727 algorithm for IPsec ("phase 2") authentication. 728 72920110207: 730 Remove the uio_yield prototype and symbol. This function has 731 been misnamed since it was introduced and should not be 732 globally exposed with this name. The equivalent functionality 733 is now available using kern_yield(curthread->td_user_pri). 734 The function remains undocumented. 735 73620110112: 737 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 738 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 739 for scalar sysctls is defined but disabled. Code that needs 740 UQUAD to pass the type checking that must compile on older 741 systems where the define is not present can check against 742 __FreeBSD_version >= 900030. 743 744 The system dialog(1) has been replaced with a new version previously 745 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 746 with the previous version, but the libdialog associated with it has 747 a largely incompatible API. As such, the original version of libdialog 748 will be kept temporarily as libodialog, until its base system consumers 749 are replaced or updated. Bump __FreeBSD_version to 900030. 750 75120110103: 752 If you are trying to run make universe on a -stable system, and you get 753 the following warning: 754 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 755 unknown. config(8) likely too old." 756 or something similar to it, then you must upgrade your -stable system 757 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 758 stable/8) or build the config from the latest stable/8 branch and 759 install it on your system. 760 761 Prior to this date, building a current universe on 8-stable system from 762 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 763 error in the first kernel build phase. A new config on those old 764 systems will fix that problem for older versions of -current. 765 76620101228: 767 The TCP stack has been modified to allow Khelp modules to interact with 768 it via helper hook points and store per-connection data in the TCP 769 control block. Bump __FreeBSD_version to 900029. User space tools that 770 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 771 be recompiled. 772 77320101114: 774 Generic IEEE 802.3 annex 31B full duplex flow control support has been 775 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 776 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 777 to take advantage of it instead of using custom implementations. This 778 means that these drivers now no longer unconditionally advertise 779 support for flow control but only do so if flow control is a selected 780 media option. This was implemented in the generic support that way in 781 order to allow flow control to be switched on and off via ifconfig(8) 782 with the PHY specific default to typically off in order to protect 783 from unwanted effects. Consequently, if you used flow control with 784 one of the above mentioned drivers you now need to explicitly enable 785 it, for example via: 786 ifconfig bge0 media auto mediaopt flowcontrol 787 788 Along with the above mentioned changes generic support for setting 789 1000baseT master mode also has been added and brgphy(4), ciphy(4), 790 e1000phy(4) as well as ip1000phy(4) have been converted to take 791 advantage of it. This means that these drivers now no longer take the 792 link0 parameter for selecting master mode but the master media option 793 has to be used instead, for example like in the following: 794 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 795 796 Selection of master mode now is also available with all other PHY 797 drivers supporting 1000baseT. 798 79920101111: 800 The TCP stack has received a significant update to add support for 801 modularised congestion control and generally improve the clarity of 802 congestion control decisions. Bump __FreeBSD_version to 900025. User 803 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 804 sockstat) need to be recompiled. 805 80620101002: 807 The man(1) utility has been replaced by a new version that no longer 808 uses /etc/manpath.config. Please consult man.conf(5) for how to 809 migrate local entries to the new format. 810 81120100928: 812 The copyright strings printed by login(1) and sshd(8) at the time of a 813 new connection have been removed to follow other operating systems and 814 upstream sshd. 815 81620100915: 817 A workaround for a fixed ld bug has been removed in kernel code, 818 so make sure that your system ld is built from sources after 819 revision 210245 from 2010-07-19 (r211583 if building head kernel 820 on stable/8, r211584 for stable/7; both from 2010-08-21). 821 A symptom of incorrect ld version is different addresses for 822 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 823 82420100913: 825 The $ipv6_prefer variable in rc.conf(5) has been split into 826 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 827 828 The $ip6addrctl_policy is a variable to choose a pre-defined 829 address selection policy set by ip6addrctl(8). A value 830 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 831 default is "AUTO". 832 833 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 834 flag (see an entry of 20090926) is set on an interface with no 835 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 836 security reason. If you want IPv6 link-local address on all 837 interfaces by default, set this to "YES". 838 839 The old ipv6_prefer="YES" is equivalent to 840 ipv6_activate_all_interfaces="YES" and 841 ip6addrctl_policy="ipv6_prefer". 842 84320100913: 844 DTrace has grown support for userland tracing. Due to this, DTrace is 845 now i386 and amd64 only. 846 dtruss(1) is now installed by default on those systems and a new 847 kernel module is needed for userland tracing: fasttrap. 848 No changes to your kernel config file are necessary to enable 849 userland tracing, but you might consider adding 'STRIP=' and 850 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 851 to have informative userland stack traces in DTrace (ustack). 852 85320100725: 854 The acpi_aiboost(4) driver has been removed in favor of the new 855 aibs(4) driver. You should update your kernel configuration file. 856 85720100722: 858 BSD grep has been imported to the base system and it is built by 859 default. It is completely BSD licensed, highly GNU-compatible, uses 860 less memory than its GNU counterpart and has a small codebase. 861 However, it is slower than its GNU counterpart, which is mostly 862 noticeable for larger searches, for smaller ones it is measurable 863 but not significant. The reason is complex, the most important factor 864 is that we lack a modern and efficient regex library and GNU 865 overcomes this by optimizing the searches internally. Future work 866 on improving the regex performance is planned, for the meantime, 867 users that need better performance, can build GNU grep instead by 868 setting the WITH_GNU_GREP knob. 869 87020100713: 871 Due to the import of powerpc64 support, all existing powerpc kernel 872 configuration files must be updated with a machine directive like this: 873 machine powerpc powerpc 874 875 In addition, an updated config(8) is required to build powerpc kernels 876 after this change. 877 87820100713: 879 A new version of ZFS (version 15) has been merged to -HEAD. 880 This version uses a python library for the following subcommands: 881 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 882 For full functionality of these commands the following port must 883 be installed: sysutils/py-zfs 884 88520100429: 886 'vm_page's are now hashed by physical address to an array of mutexes. 887 Currently this is only used to serialize access to hold_count. Over 888 time the page queue mutex will be peeled away. This changes the size 889 of pmap on every architecture. And requires all callers of vm_page_hold 890 and vm_page_unhold to be updated. 891 89220100402: 893 WITH_CTF can now be specified in src.conf (not recommended, there 894 are some problems with static executables), make.conf (would also 895 affect ports which do not use GNU make and do not override the 896 compile targets) or in the kernel config (via "makeoptions 897 WITH_CTF=yes"). 898 When WITH_CTF was specified there before this was silently ignored, 899 so make sure that WITH_CTF is not used in places which could lead 900 to unwanted behavior. 901 90220100311: 903 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 904 to allow 32-bit compatibility on non-x86 platforms. All kernel 905 configurations on amd64 and ia64 platforms using these options must 906 be modified accordingly. 907 90820100113: 909 The utmp user accounting database has been replaced with utmpx, 910 the user accounting interface standardized by POSIX. 911 Unfortunately the semantics of utmp and utmpx don't match, 912 making it practically impossible to support both interfaces. 913 The user accounting database is used by tools like finger(1), 914 last(1), talk(1), w(1) and ac(8). 915 916 All applications in the base system use utmpx. This means only 917 local binaries (e.g. from the ports tree) may still use these 918 utmp database files. These applications must be rebuilt to make 919 use of utmpx. 920 921 After the system has been upgraded, it is safe to remove the old 922 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 923 assuming their contents is of no importance anymore. Old wtmp 924 databases can only be used by last(1) and ac(8) after they have 925 been converted to the new format using wtmpcvt(1). 926 92720100108: 928 Introduce the kernel thread "deadlock resolver" (which can be enabled 929 via the DEADLKRES option, see NOTES for more details) and the 930 sleepq_type() function for sleepqueues. 931 93220091202: 933 The rc.firewall and rc.firewall6 were unified, and 934 rc.firewall6 and rc.d/ip6fw were removed. 935 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 936 variables are obsoleted. Instead, the following new rc 937 variables are added to rc.d/ipfw: 938 939 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 940 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 941 firewall_simple_onet_ipv6, firewall_trusted_ipv6 942 943 The meanings correspond to the relevant IPv4 variables. 944 94520091125: 946 8.0-RELEASE. 947 94820091113: 949 The default terminal emulation for syscons(4) has been changed 950 from cons25 to xterm on all platforms except pc98. This means 951 that the /etc/ttys file needs to be updated to ensure correct 952 operation of applications on the console. 953 954 The terminal emulation style can be toggled per window by using 955 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 956 options can be used to change the compile-time default back to 957 cons25. 958 959 To prevent graphical artifacts, make sure the TERM environment 960 variable is set to match the terminal emulation that is being 961 performed by syscons(4). 962 96320091109: 964 The layout of the structure ieee80211req_scan_result has changed. 965 Applications that require wireless scan results (e.g. ifconfig(8)) 966 from net80211 need to be recompiled. 967 968 Applications such as wpa_supplicant(8) may require a full world 969 build without using NO_CLEAN in order to get synchronized with the 970 new structure. 971 97220091025: 973 The iwn(4) driver has been updated to support the 5000 and 5150 series. 974 There's one kernel module for each firmware. Adding "device iwnfw" 975 to the kernel configuration file means including all three firmware 976 images inside the kernel. If you want to include just the one for 977 your wireless card, use the devices iwn4965fw, iwn5000fw or 978 iwn5150fw. 979 98020090926: 981 The rc.d/network_ipv6, IPv6 configuration script has been integrated 982 into rc.d/netif. The changes are the following: 983 984 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 985 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 986 Note that both variables need the "inet6" keyword at the head. 987 988 Do not set $ipv6_network_interfaces manually if you do not 989 understand what you are doing. It is not needed in most cases. 990 991 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 992 they are obsolete. 993 994 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 995 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 996 997 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 998 all configured interfaces have "inet6 accept_rtadv" in the 999 $ifconfig_IF_ipv6. These are for backward compatibility. 1000 1001 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1002 functionality of interfaces with no corresponding 1003 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1004 and the default address selection policy of ip6addrctl(8) 1005 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1006 Note that if you want to configure IPv6 functionality on the 1007 disabled interfaces after boot, first you need to clear the flag by 1008 using ifconfig(8) like: 1009 1010 ifconfig em0 inet6 -ifdisabled 1011 1012 If YES, the default address selection policy is set as 1013 IPv6-preferred. 1014 1015 The default value of $ipv6_prefer is NO. 1016 1017 4. If your system need to receive Router Advertisement messages, 1018 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1019 scripts automatically invoke rtsol(8) when the interface becomes 1020 UP. The Router Advertisement messages are used for SLAAC 1021 (State-Less Address AutoConfiguration). 1022 102320090922: 1024 802.11s D3.03 support was committed. This is incompatible with the 1025 previous code, which was based on D3.0. 1026 102720090912: 1028 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1029 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1030 control whether accepting Router Advertisement messages or not. 1031 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1032 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1033 The ifconfig(8) utility now supports these flags. 1034 103520090910: 1036 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1037 mount(8) and -a option for df(1) to see them. 1038 103920090825: 1040 The old tunable hw.bus.devctl_disable has been superseded by 1041 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1042 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1043 is 1000. 1044 104520090813: 1046 Remove the option STOP_NMI. The default action is now to use NMI only 1047 for KDB via the newly introduced function stop_cpus_hard() and 1048 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1049 105020090803: 1051 The stable/8 branch created in subversion. This corresponds to the 1052 RELENG_8 branch in CVS. 1053 105420090719: 1055 Bump the shared library version numbers for all libraries that do not 1056 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1057 __FreeBSD_version to 800105. 1058 105920090714: 1060 Due to changes in the implementation of virtual network stack support, 1061 all network-related kernel modules must be recompiled. As this change 1062 breaks the ABI, bump __FreeBSD_version to 800104. 1063 106420090713: 1065 The TOE interface to the TCP syncache has been modified to remove 1066 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1067 The cxgb driver is the only TOE consumer affected by this change, and 1068 needs to be recompiled along with the kernel. As this change breaks 1069 the ABI, bump __FreeBSD_version to 800103. 1070 107120090712: 1072 Padding has been added to struct tcpcb, sackhint and tcpstat in 1073 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1074 maintaining the ABI. However, this change breaks the ABI, so bump 1075 __FreeBSD_version to 800102. User space tools that rely on the size of 1076 any of these structs (e.g. sockstat) need to be recompiled. 1077 107820090630: 1079 The NFS_LEGACYRPC option has been removed along with the old kernel 1080 RPC implementation that this option selected. Kernel configurations 1081 may need to be adjusted. 1082 108320090629: 1084 The network interface device nodes at /dev/net/<interface> have been 1085 removed. All ioctl operations can be performed the normal way using 1086 routing sockets. The kqueue functionality can generally be replaced 1087 with routing sockets. 1088 108920090628: 1090 The documentation from the FreeBSD Documentation Project (Handbook, 1091 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1092 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1093 109420090624: 1095 The ABI of various structures related to the SYSV IPC API have been 1096 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1097 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1098 800100. 1099 110020090622: 1101 Layout of struct vnet has changed as routing related variables were 1102 moved to their own Vimage module. Modules need to be recompiled. Bump 1103 __FreeBSD_version to 800099. 1104 110520090619: 1106 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1107 respectively. As long as no more than 16 groups per process are used, 1108 no changes should be visible. When more than 16 groups are used, old 1109 binaries may fail if they call getgroups() or getgrouplist() with 1110 statically sized storage. Recompiling will work around this, but 1111 applications should be modified to use dynamically allocated storage 1112 for group arrays as POSIX.1-2008 does not cap an implementation's 1113 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1114 1115 NFS and portalfs mounts may also be affected as the list of groups is 1116 truncated to 16. Users of NFS who use more than 16 groups, should 1117 take care that negative group permissions are not used on the exported 1118 file systems as they will not be reliable unless a GSSAPI based 1119 authentication method is used. 1120 112120090616: 1122 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1123 option compiles in the support for adaptive spinning for lockmgrs 1124 which want to enable it. The lockinit() function now accepts the flag 1125 LK_ADAPTIVE in order to make the lock object subject to adaptive 1126 spinning when both held in write and read mode. 1127 112820090613: 1129 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1130 changed. User applications that use this ioctl need to be rebuilt. 1131 113220090611: 1133 The layout of struct thread has changed. Kernel and modules need to 1134 be rebuilt. 1135 113620090608: 1137 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1138 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1139 114020090602: 1141 window(1) has been removed from the base system. It can now be 1142 installed from ports. The port is called misc/window. 1143 114420090601: 1145 The way we are storing and accessing `routing table' entries has 1146 changed. Programs reading the FIB, like netstat, need to be 1147 re-compiled. 1148 114920090601: 1150 A new netisr implementation has been added for FreeBSD 8. Network 1151 file system modules, such as igmp, ipdivert, and others, should be 1152 rebuilt. 1153 Bump __FreeBSD_version to 800096. 1154 115520090530: 1156 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1157 more valid. 1158 115920090530: 1160 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1161 Bump __FreeBSD_version to 800094. 1162 116320090529: 1164 Add mnt_xflag field to 'struct mount'. File system modules need to be 1165 rebuilt. 1166 Bump __FreeBSD_version to 800093. 1167 116820090528: 1169 The compiling option ADAPTIVE_SX has been retired while it has been 1170 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1171 The KPI for sx_init_flags() changes as accepting flags: 1172 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1173 been introduced in order to handle the reversed logic. 1174 Bump __FreeBSD_version to 800092. 1175 117620090527: 1177 Add support for hierarchical jails. Remove global securelevel. 1178 Bump __FreeBSD_version to 800091. 1179 118020090523: 1181 The layout of struct vnet_net has changed, therefore modules 1182 need to be rebuilt. 1183 Bump __FreeBSD_version to 800090. 1184 118520090523: 1186 The newly imported zic(8) produces a new format in the output. Please 1187 run tzsetup(8) to install the newly created data to /etc/localtime. 1188 118920090520: 1190 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1191 hw.usb.* and is now consistent again with previous releases. 1192 119320090520: 1194 802.11 monitor mode support was revised and driver api's were changed. 1195 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1196 of DLT_IEEE802_11. No user-visible data structures were changed but 1197 applications that use DLT_IEEE802_11 may require changes. 1198 Bump __FreeBSD_version to 800088. 1199 120020090430: 1201 The layout of the following structs has changed: sysctl_oid, 1202 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1203 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1204 panics may be experienced. World rebuild is required for 1205 correctly checking networking state from userland. 1206 Bump __FreeBSD_version to 800085. 1207 120820090429: 1209 MLDv2 and Source-Specific Multicast (SSM) have been merged 1210 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1211 The implementation of SSM within FreeBSD's IPv6 stack closely 1212 follows the IPv4 implementation. 1213 1214 For kernel developers: 1215 1216 * The most important changes are that the ip6_output() and 1217 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1218 and this lock has been downgraded to a non-recursive mutex. 1219 1220 * As with the changes to the IPv4 stack to support SSM, filtering 1221 of inbound multicast traffic must now be performed by transport 1222 protocols within the IPv6 stack. This does not apply to TCP and 1223 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1224 1225 * The KPIs used by IPv6 multicast are similar to those used by 1226 the IPv4 stack, with the following differences: 1227 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1228 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1229 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1230 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1231 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1232 for MLDv1 have an additional 'timer' argument which is used to 1233 jitter the initial membership report for the solicited-node 1234 multicast membership on-link. 1235 * This is not strictly needed for MLDv2, which already jitters 1236 its report transmissions. However, the 'timer' argument is 1237 preserved in case MLDv1 is active on the interface. 1238 1239 * The KAME linked-list based IPv6 membership implementation has 1240 been refactored to use a vector similar to that used by the IPv4 1241 stack. 1242 Code which maintains a list of its own multicast memberships 1243 internally, e.g. carp, has been updated to reflect the new 1244 semantics. 1245 1246 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1247 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1248 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1249 implementation constraint which needs to be addressed in HEAD. 1250 1251 For application developers: 1252 1253 * The changes are broadly similar to those made for the IPv4 1254 stack. 1255 1256 * The use of IPv4 and IPv6 multicast socket options on the same 1257 socket, using mapped addresses, HAS NOT been tested or supported. 1258 1259 * There are a number of issues with the implementation of various 1260 IPv6 multicast APIs which need to be resolved in the API surface 1261 before the implementation is fully compatible with KAME userland 1262 use, and these are mostly to do with interface index treatment. 1263 1264 * The literature available discusses the use of either the delta / ASM 1265 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1266 using setsourcefilter(3)/getsourcefilter(3). For more information 1267 please refer to RFC 3768, 'Socket Interface Extensions for 1268 Multicast Source Filters'. 1269 1270 * Applications which use the published RFC 3678 APIs should be fine. 1271 1272 For systems administrators: 1273 1274 * The mtest(8) utility has been refactored to support IPv6, in 1275 addition to IPv4. Interface addresses are no longer accepted 1276 as arguments, their names must be used instead. The utility 1277 will map the interface name to its first IPv4 address as 1278 returned by getifaddrs(3). 1279 1280 * The ifmcstat(8) utility has also been updated to print the MLDv2 1281 endpoint state and source filter lists via sysctl(3). 1282 1283 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1284 loopback of IPv6 multicast datagrams by default; it defaults to 1 1285 to preserve the existing behaviour. Disabling multicast loopback is 1286 recommended for optimal system performance. 1287 1288 * The IPv6 MROUTING code has been changed to examine this sysctl 1289 instead of attempting to perform a group lookup before looping 1290 back forwarded datagrams. 1291 1292 Bump __FreeBSD_version to 800084. 1293 129420090422: 1295 Implement low-level Bluetooth HCI API. 1296 Bump __FreeBSD_version to 800083. 1297 129820090419: 1299 The layout of struct malloc_type, used by modules to register new 1300 memory allocation types, has changed. Most modules will need to 1301 be rebuilt or panics may be experienced. 1302 Bump __FreeBSD_version to 800081. 1303 130420090415: 1305 Anticipate overflowing inp_flags - add inp_flags2. 1306 This changes most offsets in inpcb, so checking v4 connection 1307 state will require a world rebuild. 1308 Bump __FreeBSD_version to 800080. 1309 131020090415: 1311 Add an llentry to struct route and struct route_in6. Modules 1312 embedding a struct route will need to be recompiled. 1313 Bump __FreeBSD_version to 800079. 1314 131520090414: 1316 The size of rt_metrics_lite and by extension rtentry has changed. 1317 Networking administration apps will need to be recompiled. 1318 The route command now supports show as an alias for get, weighting 1319 of routes, sticky and nostick flags to alter the behavior of stateful 1320 load balancing. 1321 Bump __FreeBSD_version to 800078. 1322 132320090408: 1324 Do not use Giant for kbdmux(4) locking. This is wrong and 1325 apparently causing more problems than it solves. This will 1326 re-open the issue where interrupt handlers may race with 1327 kbdmux(4) in polling mode. Typical symptoms include (but 1328 not limited to) duplicated and/or missing characters when 1329 low level console functions (such as gets) are used while 1330 interrupts are enabled (for example geli password prompt, 1331 mountroot prompt etc.). Disabling kbdmux(4) may help. 1332 133320090407: 1334 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1335 kernel modules referencing any of the above need to be recompiled. 1336 Bump __FreeBSD_version to 800075. 1337 133820090320: 1339 GEOM_PART has become the default partition slicer for storage devices, 1340 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1341 introduces some changes: 1342 1343 MSDOS/EBR: the devices created from MSDOS extended partition entries 1344 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1345 to devices with offset-based names. fstabs may need to be modified. 1346 1347 BSD: the "geometry does not match label" warning is harmless in most 1348 cases but it points to problems in file system misalignment with 1349 disk geometry. The "c" partition is now implicit, covers the whole 1350 top-level drive and cannot be (mis)used by users. 1351 1352 General: Kernel dumps are now not allowed to be written to devices 1353 whose partition types indicate they are meant to be used for file 1354 systems (or, in case of MSDOS partitions, as something else than 1355 the "386BSD" type). 1356 1357 Most of these changes date approximately from 200812. 1358 135920090319: 1360 The uscanner(4) driver has been removed from the kernel. This follows 1361 Linux removing theirs in 2.6 and making libusb the default interface 1362 (supported by sane). 1363 136420090319: 1365 The multicast forwarding code has been cleaned up. netstat(1) 1366 only relies on KVM now for printing bandwidth upcall meters. 1367 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1368 ip6_mroute_mod respectively. The config(5) options for statically 1369 compiling this code remain the same, i.e. 'options MROUTING'. 1370 137120090315: 1372 Support for the IFF_NEEDSGIANT network interface flag has been 1373 removed, which means that non-MPSAFE network device drivers are no 1374 longer supported. In particular, if_ar, if_sr, and network device 1375 drivers from the old (legacy) USB stack can no longer be built or 1376 used. 1377 137820090313: 1379 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1380 a bunch of new language catalog files have also been added. 1381 This means that some common libc messages are now localized and 1382 they depend on the LC_MESSAGES environmental variable. 1383 138420090313: 1385 The k8temp(4) driver has been renamed to amdtemp(4) since 1386 support for Family 10 and Family 11 CPU families was added. 1387 138820090309: 1389 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1390 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1391 1392 For kernel developers, the most important changes are that the 1393 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1394 and this lock has been downgraded to a non-recursive mutex. 1395 1396 Transport protocols (UDP, Raw IP) are now responsible for filtering 1397 inbound multicast traffic according to group membership and source 1398 filters. The imo_multicast_filter() KPI exists for this purpose. 1399 Transports which do not use multicast (SCTP, TCP) already reject 1400 multicast by default. Forwarding and receive performance may improve 1401 as a mutex acquisition is no longer needed in the ip_input() 1402 low-level input path. in_addmulti() and in_delmulti() are shimmed 1403 to new KPIs which exist to support SSM in-kernel. 1404 1405 For application developers, it is recommended that loopback of 1406 multicast datagrams be disabled for best performance, as this 1407 will still cause the lock to be taken for each looped-back 1408 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1409 be tuned to 0 to disable loopback by default; it defaults to 1 1410 to preserve the existing behaviour. 1411 1412 For systems administrators, to obtain best performance with 1413 multicast reception and multiple groups, it is always recommended 1414 that a card with a suitably precise hash filter is used. Hash 1415 collisions will still result in the lock being taken within the 1416 transport protocol input path to check group membership. 1417 1418 If deploying FreeBSD in an environment with IGMP snooping switches, 1419 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1420 enabled; this forces 224.0.0.0/24 group membership to be announced 1421 via IGMP. 1422 1423 The size of 'struct igmpstat' has changed; netstat needs to be 1424 recompiled to reflect this. 1425 Bump __FreeBSD_version to 800070. 1426 142720090309: 1428 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1429 updated to use it. This requires a buildworld/installworld in order to 1430 update the library and dependencies (usbconfig, etc). Its advisable to 1431 rebuild all ports which uses libusb. More specific directions are given 1432 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1433 libusb are no longer required and can be removed. 1434 143520090302: 1436 A workaround is committed to allow the creation of System V shared 1437 memory segment of size > 2 GB on the 64-bit architectures. 1438 Due to a limitation of the existing ABI, the shm_segsz member 1439 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1440 wrong for large segments. Note that limits must be explicitly 1441 raised to allow such segments to be created. 1442 144320090301: 1444 The layout of struct ifnet has changed, requiring a rebuild of all 1445 network device driver modules. 1446 144720090227: 1448 The /dev handling for the new USB stack has changed, a 1449 buildworld/installworld is required for libusb20. 1450 145120090223: 1452 The new USB2 stack has now been permanently moved in and all kernel and 1453 module names reverted to their previous values (eg, usb, ehci, ohci, 1454 ums, ...). The old usb stack can be compiled in by prefixing the name 1455 with the letter 'o', the old usb modules have been removed. 1456 Updating entry 20090216 for xorg and 20090215 for libmap may still 1457 apply. 1458 145920090217: 1460 The rc.conf(5) option if_up_delay has been renamed to 1461 defaultroute_delay to better reflect its purpose. If you have 1462 customized this setting in /etc/rc.conf you need to update it to 1463 use the new name. 1464 146520090216: 1466 xorg 7.4 wants to configure its input devices via hald which does not 1467 yet work with USB2. If the keyboard/mouse does not work in xorg then 1468 add 1469 Option "AllowEmptyInput" "off" 1470 to your ServerLayout section. This will cause X to use the configured 1471 kbd and mouse sections from your xorg.conf. 1472 147320090215: 1474 The GENERIC kernels for all architectures now default to the new USB2 1475 stack. No kernel config options or code have been removed so if a 1476 problem arises please report it and optionally revert to the old USB 1477 stack. If you are loading USB kernel modules or have a custom kernel 1478 that includes GENERIC then ensure that usb names are also changed over, 1479 eg uftdi -> usb2_serial_ftdi. 1480 1481 Older programs linked against the ports libusb 0.1 need to be 1482 redirected to the new stack's libusb20. /etc/libmap.conf can 1483 be used for this: 1484 # Map old usb library to new one for usb2 stack 1485 libusb-0.1.so.8 libusb20.so.1 1486 148720090209: 1488 All USB ethernet devices now attach as interfaces under the name ueN 1489 (eg. ue0). This is to provide a predictable name as vendors often 1490 change usb chipsets in a product without notice. 1491 149220090203: 1493 The ichsmb(4) driver has been changed to require SMBus slave 1494 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1495 All of the other SMBus controller drivers require left-justified 1496 slave addresses, so this change makes all the drivers provide the 1497 same interface. 1498 149920090201: 1500 INET6 statistics (struct ip6stat) was updated. 1501 netstat(1) needs to be recompiled. 1502 150320090119: 1504 NTFS has been removed from GENERIC kernel on amd64 to match 1505 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1506 will load ntfs.ko module automatically when NTFS support is 1507 actually needed, unless ntfs.ko is not installed or security 1508 level prohibits loading kernel modules. If either is the case, 1509 "options NTFS" has to be added into kernel config. 1510 151120090115: 1512 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1513 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1514 800061. User space tools that rely on the size of struct tcpcb in 1515 tcp_var.h (e.g. sockstat) need to be recompiled. 1516 151720081225: 1518 ng_tty(4) module updated to match the new TTY subsystem. 1519 Due to API change, user-level applications must be updated. 1520 New API support added to mpd5 CVS and expected to be present 1521 in next mpd5.3 release. 1522 152320081219: 1524 With __FreeBSD_version 800060 the makefs tool is part of 1525 the base system (it was a port). 1526 152720081216: 1528 The afdata and ifnet locks have been changed from mutexes to 1529 rwlocks, network modules will need to be re-compiled. 1530 153120081214: 1532 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1533 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1534 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1535 architecture and 40 bytes on 64-bit architecture. The userland 1536 applications "arp" and "ndp" have been updated accordingly. 1537 The output from "netstat -r" shows only routing entries and 1538 none of the L2 information. 1539 154020081130: 1541 __FreeBSD_version 800057 marks the switchover from the 1542 binary ath hal to source code. Users must add the line: 1543 1544 options AH_SUPPORT_AR5416 1545 1546 to their kernel config files when specifying: 1547 1548 device ath_hal 1549 1550 The ath_hal module no longer exists; the code is now compiled 1551 together with the driver in the ath module. It is now 1552 possible to tailor chip support (i.e. reduce the set of chips 1553 and thereby the code size); consult ath_hal(4) for details. 1554 155520081121: 1556 __FreeBSD_version 800054 adds memory barriers to 1557 <machine/atomic.h>, new interfaces to ifnet to facilitate 1558 multiple hardware transmit queues for cards that support 1559 them, and a lock-less ring-buffer implementation to 1560 enable drivers to more efficiently manage queueing of 1561 packets. 1562 156320081117: 1564 A new version of ZFS (version 13) has been merged to -HEAD. 1565 This version has zpool attribute "listsnapshots" off by 1566 default, which means "zfs list" does not show snapshots, 1567 and is the same as Solaris behavior. 1568 156920081028: 1570 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1571 157220081009: 1573 The uhci, ohci, ehci and slhci USB Host controller drivers have 1574 been put into separate modules. If you load the usb module 1575 separately through loader.conf you will need to load the 1576 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1577 controller add the following to loader.conf: 1578 1579 uhci_load="YES" 1580 ehci_load="YES" 1581 158220081009: 1583 The ABI used by the PMC toolset has changed. Please keep 1584 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1585 sync. 1586 158720081009: 1588 atapci kernel module now includes only generic PCI ATA 1589 driver. AHCI driver moved to ataahci kernel module. 1590 All vendor-specific code moved into separate kernel modules: 1591 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1592 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1593 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1594 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1595 159620080820: 1597 The TTY subsystem of the kernel has been replaced by a new 1598 implementation, which provides better scalability and an 1599 improved driver model. Most common drivers have been migrated to 1600 the new TTY subsystem, while others have not. The following 1601 drivers have not yet been ported to the new TTY layer: 1602 1603 PCI/ISA: 1604 cy, digi, rc, rp, sio 1605 1606 USB: 1607 ubser, ucycom 1608 1609 Line disciplines: 1610 ng_h4, ng_tty, ppp, sl, snp 1611 1612 Adding these drivers to your kernel configuration file shall 1613 cause compilation to fail. 1614 161520080818: 1616 ntpd has been upgraded to 4.2.4p5. 1617 161820080801: 1619 OpenSSH has been upgraded to 5.1p1. 1620 1621 For many years, FreeBSD's version of OpenSSH preferred DSA 1622 over RSA for host and user authentication keys. With this 1623 upgrade, we've switched to the vendor's default of RSA over 1624 DSA. This may cause upgraded clients to warn about unknown 1625 host keys even for previously known hosts. Users should 1626 follow the usual procedure for verifying host keys before 1627 accepting the RSA key. 1628 1629 This can be circumvented by setting the "HostKeyAlgorithms" 1630 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1631 command line. 1632 1633 Please note that the sequence of keys offered for 1634 authentication has been changed as well. You may want to 1635 specify IdentityFile in a different order to revert this 1636 behavior. 1637 163820080713: 1639 The sio(4) driver has been removed from the i386 and amd64 1640 kernel configuration files. This means uart(4) is now the 1641 default serial port driver on those platforms as well. 1642 1643 To prevent collisions with the sio(4) driver, the uart(4) driver 1644 uses different names for its device nodes. This means the 1645 onboard serial port will now most likely be called "ttyu0" 1646 instead of "ttyd0". You may need to reconfigure applications to 1647 use the new device names. 1648 1649 When using the serial port as a boot console, be sure to update 1650 /boot/device.hints and /etc/ttys before booting the new kernel. 1651 If you forget to do so, you can still manually specify the hints 1652 at the loader prompt: 1653 1654 set hint.uart.0.at="isa" 1655 set hint.uart.0.port="0x3F8" 1656 set hint.uart.0.flags="0x10" 1657 set hint.uart.0.irq="4" 1658 boot -s 1659 166020080609: 1661 The gpt(8) utility has been removed. Use gpart(8) to partition 1662 disks instead. 1663 166420080603: 1665 The version that Linuxulator emulates was changed from 2.4.2 1666 to 2.6.16. If you experience any problems with Linux binaries 1667 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1668 if it fixes the problem contact emulation mailing list. 1669 167020080525: 1671 ISDN4BSD (I4B) was removed from the src tree. You may need to 1672 update a your kernel configuration and remove relevant entries. 1673 167420080509: 1675 I have checked in code to support multiple routing tables. 1676 See the man pages setfib(1) and setfib(2). 1677 This is a hopefully backwards compatible version, 1678 but to make use of it you need to compile your kernel 1679 with options ROUTETABLES=2 (or more up to 16). 1680 168120080420: 1682 The 802.11 wireless support was redone to enable multi-bss 1683 operation on devices that are capable. The underlying device 1684 is no longer used directly but instead wlanX devices are 1685 cloned with ifconfig. This requires changes to rc.conf files. 1686 For example, change: 1687 ifconfig_ath0="WPA DHCP" 1688 to 1689 wlans_ath0=wlan0 1690 ifconfig_wlan0="WPA DHCP" 1691 see rc.conf(5) for more details. In addition, mergemaster of 1692 /etc/rc.d is highly recommended. Simultaneous update of userland 1693 and kernel wouldn't hurt either. 1694 1695 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1696 modules were merged into the base wlan module. All references 1697 to these modules (e.g. in kernel config files) must be removed. 1698 169920080408: 1700 psm(4) has gained write(2) support in native operation level. 1701 Arbitrary commands can be written to /dev/psm%d and status can 1702 be read back from it. Therefore, an application is responsible 1703 for status validation and error recovery. It is a no-op in 1704 other operation levels. 1705 170620080312: 1707 Support for KSE threading has been removed from the kernel. To 1708 run legacy applications linked against KSE libmap.conf may 1709 be used. The following libmap.conf may be used to ensure 1710 compatibility with any prior release: 1711 1712 libpthread.so.1 libthr.so.1 1713 libpthread.so.2 libthr.so.2 1714 libkse.so.3 libthr.so.3 1715 171620080301: 1717 The layout of struct vmspace has changed. This affects libkvm 1718 and any executables that link against libkvm and use the 1719 kvm_getprocs() function. In particular, but not exclusively, 1720 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1721 The effects are minimal, but it's advisable to upgrade world 1722 nonetheless. 1723 172420080229: 1725 The latest em driver no longer has support in it for the 1726 82575 adapter, this is now moved to the igb driver. The 1727 split was done to make new features that are incompatible 1728 with older hardware easier to do. 1729 173020080220: 1731 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1732 likewise the kernel option is now GEOM_LINUX_LVM. 1733 173420080211: 1735 The default NFS mount mode has changed from UDP to TCP for 1736 increased reliability. If you rely on (insecurely) NFS 1737 mounting across a firewall you may need to update your 1738 firewall rules. 1739 174020080208: 1741 Belatedly note the addition of m_collapse for compacting 1742 mbuf chains. 1743 174420080126: 1745 The fts(3) structures have been changed to use adequate 1746 integer types for their members and so to be able to cope 1747 with huge file trees. The old fts(3) ABI is preserved 1748 through symbol versioning in libc, so third-party binaries 1749 using fts(3) should still work, although they will not take 1750 advantage of the extended types. At the same time, some 1751 third-party software might fail to build after this change 1752 due to unportable assumptions made in its source code about 1753 fts(3) structure members. Such software should be fixed 1754 by its vendor or, in the worst case, in the ports tree. 1755 FreeBSD_version 800015 marks this change for the unlikely 1756 case that a portable fix is impossible. 1757 175820080123: 1759 To upgrade to -current after this date, you must be running 1760 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1761 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1762 176320071128: 1764 The ADAPTIVE_GIANT kernel option has been retired because its 1765 functionality is the default now. 1766 176720071118: 1768 The AT keyboard emulation of sunkbd(4) has been turned on 1769 by default. In order to make the special symbols of the Sun 1770 keyboards driven by sunkbd(4) work under X these now have 1771 to be configured the same way as Sun USB keyboards driven 1772 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1773 1774 Option "XkbLayout" "us" 1775 Option "XkbRules" "xorg" 1776 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1777 177820071024: 1779 It has been decided that it is desirable to provide ABI 1780 backwards compatibility to the FreeBSD 4/5/6 versions of the 1781 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1782 broken with the introduction of PCI domain support (see the 1783 20070930 entry). Unfortunately, this required the ABI of 1784 PCIOCGETCONF to be broken again in order to be able to 1785 provide backwards compatibility to the old version of that 1786 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1787 again. As for prominent ports this affects neither pciutils 1788 nor xorg-server this time, the hal port needs to be rebuilt 1789 however. 1790 179120071020: 1792 The misnamed kthread_create() and friends have been renamed 1793 to kproc_create() etc. Many of the callers already 1794 used kproc_start().. 1795 I will return kthread_create() and friends in a while 1796 with implementations that actually create threads, not procs. 1797 Renaming corresponds with version 800002. 1798 179920071010: 1800 RELENG_7 branched. 1801 1802COMMON ITEMS: 1803 1804 General Notes 1805 ------------- 1806 Avoid using make -j when upgrading. While generally safe, there are 1807 sometimes problems using -j to upgrade. If your upgrade fails with 1808 -j, please try again without -j. From time to time in the past there 1809 have been problems using -j with buildworld and/or installworld. This 1810 is especially true when upgrading between "distant" versions (eg one 1811 that cross a major release boundary or several minor releases, or when 1812 several months have passed on the -current branch). 1813 1814 Sometimes, obscure build problems are the result of environment 1815 poisoning. This can happen because the make utility reads its 1816 environment when searching for values for global variables. To run 1817 your build attempts in an "environmental clean room", prefix all make 1818 commands with 'env -i '. See the env(1) manual page for more details. 1819 1820 When upgrading from one major version to another it is generally best 1821 to upgrade to the latest code in the currently installed branch first, 1822 then do an upgrade to the new branch. This is the best-tested upgrade 1823 path, and has the highest probability of being successful. Please try 1824 this approach before reporting problems with a major version upgrade. 1825 1826 When upgrading a live system, having a root shell around before 1827 installing anything can help undo problems. Not having a root shell 1828 around can lead to problems if pam has changed too much from your 1829 starting point to allow continued authentication after the upgrade. 1830 1831 ZFS notes 1832 --------- 1833 When upgrading the boot ZFS pool to a new version, always follow 1834 these two steps: 1835 1836 1.) recompile and reinstall the ZFS boot loader and boot block 1837 (this is part of "make buildworld" and "make installworld") 1838 1839 2.) update the ZFS boot block on your boot drive 1840 1841 The following example updates the ZFS boot block on the first 1842 partition (freebsd-boot) of a GPT partitioned drive ad0: 1843 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1844 1845 Non-boot pools do not need these updates. 1846 1847 To build a kernel 1848 ----------------- 1849 If you are updating from a prior version of FreeBSD (even one just 1850 a few days old), you should follow this procedure. It is the most 1851 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1852 1853 make kernel-toolchain 1854 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1855 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1856 1857 To test a kernel once 1858 --------------------- 1859 If you just want to boot a kernel once (because you are not sure 1860 if it works, or if you want to boot a known bad kernel to provide 1861 debugging information) run 1862 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1863 nextboot -k testkernel 1864 1865 To just build a kernel when you know that it won't mess you up 1866 -------------------------------------------------------------- 1867 This assumes you are already running a CURRENT system. Replace 1868 ${arch} with the architecture of your machine (e.g. "i386", 1869 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1870 1871 cd src/sys/${arch}/conf 1872 config KERNEL_NAME_HERE 1873 cd ../compile/KERNEL_NAME_HERE 1874 make depend 1875 make 1876 make install 1877 1878 If this fails, go to the "To build a kernel" section. 1879 1880 To rebuild everything and install it on the current system. 1881 ----------------------------------------------------------- 1882 # Note: sometimes if you are running current you gotta do more than 1883 # is listed here if you are upgrading from a really old current. 1884 1885 <make sure you have good level 0 dumps> 1886 make buildworld 1887 make kernel KERNCONF=YOUR_KERNEL_HERE 1888 [1] 1889 <reboot in single user> [3] 1890 mergemaster -p [5] 1891 make installworld 1892 mergemaster -i [4] 1893 make delete-old [6] 1894 <reboot> 1895 1896 To cross-install current onto a separate partition 1897 -------------------------------------------------- 1898 # In this approach we use a separate partition to hold 1899 # current's root, 'usr', and 'var' directories. A partition 1900 # holding "/", "/usr" and "/var" should be about 2GB in 1901 # size. 1902 1903 <make sure you have good level 0 dumps> 1904 <boot into -stable> 1905 make buildworld 1906 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1907 <maybe newfs current's root partition> 1908 <mount current's root partition on directory ${CURRENT_ROOT}> 1909 make installworld DESTDIR=${CURRENT_ROOT} 1910 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1911 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1912 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1913 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1914 <reboot into current> 1915 <do a "native" rebuild/install as described in the previous section> 1916 <maybe install compatibility libraries from ports/misc/compat*> 1917 <reboot> 1918 1919 1920 To upgrade in-place from stable to current 1921 ---------------------------------------------- 1922 <make sure you have good level 0 dumps> 1923 make buildworld [9] 1924 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1925 [1] 1926 <reboot in single user> [3] 1927 mergemaster -p [5] 1928 make installworld 1929 mergemaster -i [4] 1930 make delete-old [6] 1931 <reboot> 1932 1933 Make sure that you've read the UPDATING file to understand the 1934 tweaks to various things you need. At this point in the life 1935 cycle of current, things change often and you are on your own 1936 to cope. The defaults can also change, so please read ALL of 1937 the UPDATING entries. 1938 1939 Also, if you are tracking -current, you must be subscribed to 1940 freebsd-current@freebsd.org. Make sure that before you update 1941 your sources that you have read and understood all the recent 1942 messages there. If in doubt, please track -stable which has 1943 much fewer pitfalls. 1944 1945 [1] If you have third party modules, such as vmware, you 1946 should disable them at this point so they don't crash your 1947 system on reboot. 1948 1949 [3] From the bootblocks, boot -s, and then do 1950 fsck -p 1951 mount -u / 1952 mount -a 1953 cd src 1954 adjkerntz -i # if CMOS is wall time 1955 Also, when doing a major release upgrade, it is required that 1956 you boot into single user mode to do the installworld. 1957 1958 [4] Note: This step is non-optional. Failure to do this step 1959 can result in a significant reduction in the functionality of the 1960 system. Attempting to do it by hand is not recommended and those 1961 that pursue this avenue should read this file carefully, as well 1962 as the archives of freebsd-current and freebsd-hackers mailing lists 1963 for potential gotchas. The -U option is also useful to consider. 1964 See mergemaster(8) for more information. 1965 1966 [5] Usually this step is a noop. However, from time to time 1967 you may need to do this if you get unknown user in the following 1968 step. It never hurts to do it all the time. You may need to 1969 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1970 install) after the buildworld before this step if you last updated 1971 from current before 20130425 or from -stable before 20130430. 1972 1973 [6] This only deletes old files and directories. Old libraries 1974 can be deleted by "make delete-old-libs", but you have to make 1975 sure that no program is using those libraries anymore. 1976 1977 [8] In order to have a kernel that can run the 4.x binaries needed to 1978 do an installworld, you must include the COMPAT_FREEBSD4 option in 1979 your kernel. Failure to do so may leave you with a system that is 1980 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1981 required to run the 5.x binaries on more recent kernels. And so on 1982 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1983 1984 Make sure that you merge any new devices from GENERIC since the 1985 last time you updated your kernel config file. 1986 1987 [9] When checking out sources, you must include the -P flag to have 1988 cvs prune empty directories. 1989 1990 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1991 "?=" instead of the "=" assignment operator, so that buildworld can 1992 override the CPUTYPE if it needs to. 1993 1994 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1995 not on the command line, or in /etc/make.conf. buildworld will 1996 warn if it is improperly defined. 1997FORMAT: 1998 1999This file contains a list, in reverse chronological order, of major 2000breakages in tracking -current. It is not guaranteed to be a complete 2001list of such breakages, and only contains entries since October 10, 2007. 2002If you need to see UPDATING entries from before that date, you will need 2003to fetch an UPDATING file from an older FreeBSD release. 2004 2005Copyright information: 2006 2007Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2008 2009Redistribution, publication, translation and use, with or without 2010modification, in full or in part, in any form or format of this 2011document are permitted without further permission from the author. 2012 2013THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2014IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2015WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2016DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2017INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2018(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2019SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2020HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2021STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2022IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2023POSSIBILITY OF SUCH DAMAGE. 2024 2025Contact Warner Losh if you have any questions about your use of 2026this document. 2027 2028$FreeBSD: stable/10/UPDATING 257460 2013-10-31 18:06:32Z brooks $ 2029