UPDATING revision 293896
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 1420160114 p33 FreeBSD-EN-16:02.pf 15 FreeBSD-EN-16:03.yplib 16 FreeBSD-SA-16:01.sctp 17 FreeBSD-SA-16:02.ntp 18 FreeBSD-SA-16:03.linux 19 FreeBSD-SA-16:04.linux 20 FreeBSD-SA-16:05.tcp 21 FreeBSD-SA-16:06.bsnmpd 22 23 Fix pf(4) generating bad TCP checksums. [EN-16:02] 24 Fix infinite loop in YP/NIS client library. [EN-16:03] 25 Fix remote denial of service in SCTP. [SA-16:01] 26 Update NTP to 4.2.8p5. [SA-16:02] 27 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 28 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 29 Fix crash in TCP MD5 signatures. [SA-16:05] 30 Fix insecure default permissions for snmpd.config. [SA-16:06] 31 3220151216 p32 FreeBSD-SA-15:27.bind 33 Fix BIND remote denial of service vulnerability. [SA-15:27] 34 3520151205 p31 FreeBSD-SA-15:26.openssl 36 37 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 38 3920151104 p30 FreeBSD-SA-15:25.ntp [revised] 40 FreeBSD-EN-15:19.kqueue 41 FreeBSD-EN-15:20.vm 42 43 Fix regression of ntpq(8) utility exiting due to trap 6 in 44 9.3-RELEASE-p29. [SA-15:25] 45 46 Fix regression in ntpd(8) lacking support for RAWDCF reference 47 clock in 9.3-RELEASE-p29. [SA-15:25] 48 49 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 50 51 Fix applications exiting due to segmentation violation on a correct 52 memory address. [EN-15:20] 53 5420151026: p29 FreeBSD-SA-15:25.ntp 55 56 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 57 58 The configuration file syntax has been changed, thus mergemaster 59 run is recommended. Now the "kod" parameter requires "limited" 60 parameter. If the ntp.conf is not updated, the ntpd will run 61 successfully, but with KoD disabled. 62 6320151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 64 Revised patch to address a regression that prevents NIS from working. 65 6620150929: p27 FreeBSD-SA-15:24.rpcbind 67 68 Fix rpcbind(8) remote denial of service. [SA-15:24] 69 7020150916: p26 FreeBSD-EN-15:18.pkg 71 72 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 73 7420150902: p25 FreeBSD-SA-15:23.bind 75 76 Fix BIND remote denial of service vulnerability. [SA-15:23] 77 7820150825: p24 FreeBSD-SA-15:21.amd64 79 FreeBSD-SA-15:22.openssh 80 FreeBSD-EN-15:15.pkg 81 82 Fix local privilege escalation in IRET handler. [SA-15:21] 83 84 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 85 86 Fix insufficient check of unsupported pkg(7) signature methods. 87 [EN-15:15] 88 8920150818: p23 FreeBSD-SA-15:20.expat 90 91 Fix multiple integer overflows in expat (libbsdxml) XML parser. 92 [SA-15:20] 93 9420150805: p22 FreeBSD-SA-15:19.routed 95 96 Fix routed remote denial of service vulnerability. 97 9820150728: p21 FreeBSD-SA-15:15.tcp 99 FreeBSD-SA-15:16.openssh 100 FreeBSD-SA-15:17.bind 101 102 Fix resource exhaustion in TCP reassembly. [SA-15:15] 103 104 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 105 106 Fix BIND remote denial of service vulnerability. [SA-15:17] 107 10820150721: p20 FreeBSD-SA-15:13.tcp 109 110 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 111 [SA-15:13] 112 11320150707: p19 FreeBSD-SA-15:11.bind 114 Fix BIND resolver remote denial of service when validating. 115 11620150630: p18 FreeBSD-EN-15:08.sendmail [revised] 117 FreeBSD-EN-15:09.xlocale 118 119 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 120 121 Fix inconsistency between locale and rune locale states. 122 [EN-15:09] 123 12420150618: p17 FreeBSD-EN-15:08.sendmail 125 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 126 12720150612: p16 FreeBSD-SA-15:10.openssl 128 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 129 13020150609: p15 FreeBSD-EN-15:06.file 131 132 Updated base system file(1) to 5.22 to address multiple denial 133 of service issues. 134 13520150513: p14 FreeBSD-EN-15:04.freebsd-update 136 137 Fix bug with freebsd-update(8) that does not ensure the previous 138 upgrade was completed. [EN-15:04] 139 14020150407: p13 FreeBSD-SA-15:04.igmp [revised] 141 FreeBSD-SA-15:07.ntp 142 FreeBSD-SA-15:09.ipv6 143 144 Improved patch for SA-15:04.igmp. 145 146 Fix multiple vulnerabilities of ntp. [SA-15:07] 147 148 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 149 15020150320: p12 151 Fix patch for SA-15:06.openssl. 152 15320150319: p11 FreeBSD-SA-15:06.openssl 154 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 155 15620150225: p10 FreeBSD-SA-15:04.igmp 157 FreeBSD-SA-15:05.bind 158 FreeBSD-EN-15:01.vt 159 FreeBSD-EN-15:02.openssl 160 FreeBSD-EN-15:03.freebsd-update 161 162 Fix integer overflow in IGMP protocol. [SA-15:04] 163 164 Fix BIND remote denial of service vulnerability. [SA-15:05] 165 166 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 167 168 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 169 170 Fix freebsd-update libraries update ordering issue. [EN-15:03] 171 17220150127: p9 FreeBSD-SA-15:02.kmem 173 FreeBSD-SA-15:03.sctp 174 175 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 176 vulnerability. [SA-15:02] 177 178 Fix SCTP stream reset vulnerability. [SA-15:03] 179 18020150114: p8 FreeBSD-SA-15:01.openssl 181 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 182 18320141223: p7 FreeBSD-SA-14:31.ntp 184 FreeBSD-EN-14:13.freebsd-update 185 186 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 187 Fix directory deletion issue in freebsd-update. [EN-14:13] 188 18920141210: p6 FreeBSD-SA-14:28.file 190 FreeBSD-SA-14:29.bind 191 192 Fix multiple vulnerabilities in file(1) and libmagic(3). 193 [SA-14:28] 194 195 Fix BIND remote denial of service vulnerability. [SA-14:29] 196 19720141104: p5 FreeBSD-SA-14:25.setlogin 198 FreeBSD-SA-14:26.ftp 199 FreeBSD-EN-14:12.zfs 200 201 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 202 [SA-14:25] 203 204 Fix remote command execution in ftp(1). [SA-14:26] 205 206 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 207 20820141022: p4 FreeBSD-EN-14:10.tzdata 209 FreeBSD-EN-14:11.crypt 210 211 Time zone data file update. [EN-14:10] 212 213 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 214 21520141021: p3 FreeBSD-SA-14:20.rtsold 216 FreeBSD-SA-14:21.routed 217 FreeBSD-SA-14:22.namei 218 FreeBSD-SA-14:23.openssl 219 220 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 221 222 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 223 224 Fix memory leak in sandboxed namei lookup. [SA-14:22] 225 226 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 227 22820140916: p2 FreeBSD-SA-14:19.tcp 229 Fix Denial of Service in TCP packet processing. [SA-14:19] 230 23120140909: p1 FreeBSD-SA-14:18.openssl 232 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 233 23420140716: 235 9.3-RELEASE. 236 23720140608: 238 On i386 and amd64 systems, the onifconsole flag is now set by default 239 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 240 as a login TTY if it is set in the bootloader as an active kernel 241 console. No changes in behavior should result otherwise. To revert to 242 the previous behavior, set ttyu0 to "off" in /etc/ttys. 243 24420140512: 245 Clang and llvm have been upgraded to 3.4.1 release. 246 24720140321: 248 Clang and llvm have been upgraded to 3.4 release. 249 25020140216: 251 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 252 been deprecated and will not be part of FreeBSD 11.0 and later 253 releases. If you use this driver, please consider switching to 254 the nfe(4) driver instead. 255 25620131216: 257 The behavior of gss_pseudo_random() for the krb5 mechanism 258 has changed, for applications requesting a longer random string 259 than produced by the underlying enctype's pseudo-random() function. 260 In particular, the random string produced from a session key of 261 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 262 be different at the 17th octet and later, after this change. 263 The counter used in the PRF+ construction is now encoded as a 264 big-endian integer in accordance with RFC 4402. 265 __FreeBSD_version is bumped to 902505. 266 26720130930: 268 9.2-RELEASE. 269 27020130823: 271 Behavior of devfs rules path matching has been changed. 272 Pattern is now always matched against fully qualified devfs 273 path and slash characters must be explicitly matched by 274 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 275 subdirectories must be reviewed. 276 27720130705: 278 hastctl(8)'s `status' command output changed to terse one-liner format. 279 Scripts using this should switch to `list' command or be rewritten. 280 28120130618: 282 Fix a bug that allowed a tracing process (e.g. gdb) to write 283 to a memory-mapped file in the traced process's address space 284 even if neither the traced process nor the tracing process had 285 write access to that file. 286 28720130605: 288 Added ZFS TRIM support which is enabled by default. To disable 289 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 290 291 Creating new ZFS pools and adding new devices to existing pools 292 first performs a full device level TRIM which can take a significant 293 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 294 to disable this behaviour. 295 296 ZFS TRIM requires the underlying device support BIO_DELETE which 297 is currently provided by methods such as ATA TRIM and SCSI UNMAP 298 via CAM, which are typically supported by SSD's. 299 300 Stats for ZFS TRIM can be monitored by looking at the sysctl's 301 under kstat.zfs.misc.zio_trim. 302 30320130524: 304 `list' command has been added to hastctl(8). For now, it is full 305 equivalent of `status' command. 306 WARNING: in the near future the output of hastctl's status command 307 will change to more terse format. If you use `hastctl status' 308 for parsing in your scripts, switch to `hastctl list'. 309 31020130430: 311 The mergemaster command now uses the default MAKEOBJDIRPREFIX 312 rather than creating it's own in the temporary directory in 313 order allow access to bootstrapped versions of tools such as 314 install and mtree. When upgrading from version of FreeBSD where 315 the install command does not support -l, you will need to 316 install a new mergemaster command if mergemaster -p is required. 317 This can be accomplished with the command (cd src/usr.sbin/mergemaster 318 && make install). 319 320 Due to the use of the new -l option to install(1) during build 321 and install, you must take care not to directly set the INSTALL 322 make variable in your /etc/make.conf, /etc/src.conf, or on the 323 command line. If you wish to use the -C flag for all installs 324 you may be able to add INSTALL+=-C to /etc/make.conf or 325 /etc/src.conf. 326 32720130429: 328 Fix a bug that allows NFS clients to issue READDIR on files. 329 33020130315: 331 The install(1) option -M has changed meaning and now takes an 332 argument that is a file or path to append logs to. In the 333 unlikely event that -M was the last option on the command line 334 and the command line contained at least two files and a target 335 directory the first file will have logs appended to it. The -M 336 option served little practical purpose in the last decade so it's 337 used expected to be extremely rare. 338 33920130225: 340 A new compression method (lz4) has been merged to. Please refer to 341 zpool-features(7) for more information. 342 343 Please refer to the "ZFS notes" section of this file for information 344 on upgrading boot ZFS pools. 345 34620121224: 347 The VFS KBI was changed with the merge of several nullfs 348 optimizations and fixes. All filesystem modules must be 349 recompiled. 350 35120121218: 352 With the addition of auditdistd(8), a new auditdistd user is now 353 depended on during installworld. "mergemaster -p" can be used to add 354 the user prior to installworld, as documented in the handbook. 355 35620121205: 357 9.1-RELEASE. 358 35920121129: 360 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 361 Starting with this version the old system of ZFS pool versioning 362 is superseded by "feature flags". This concept enables forward 363 compatibility against certain future changes in functionality of ZFS 364 pools. The first two read-only compatible "feature flags" for ZFS 365 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 366 For more information read the new zpool-features(7) manual page. 367 Please refer to the "ZFS notes" section of this file for information 368 on upgrading boot ZFS pools. 369 37020121114: 371 The commit introducing bsd.compiler.mk breaks the traditional 372 building of kernels before this point. Add -m ${SRC}/share/mk 373 (for the right value of SRC) to your command lines to work 374 around; update your useland to a point after this; or use the 375 buildkernel/installkernel top-level targets. See also 20120829. 376 37720121102: 378 The IPFIREWALL_FORWARD kernel option has been removed. Its 379 functionality now turned on by default. 380 38120120913: 382 The random(4) support for the VIA hardware random number 383 generator (`PADLOCK') is no longer enabled unconditionally. 384 Add the PADLOCK_RNG option in the custom kernel config if 385 needed. The GENERIC kernels on i386 and amd64 do include the 386 option, so the change only affects the custom kernel 387 configurations. 388 38920120829: 390 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 391 the traditional method, you must update your system with an installworld 392 before the kernel will build. The documented make buildkernel/installkernel 393 interfaces (coupled with fresh make kernel-toolchain) continue to work. 394 39520120727: 396 The sparc64 ZFS loader has been changed to no longer try to auto- 397 detect ZFS providers based on diskN aliases but now requires these 398 to be explicitly listed in the OFW boot-device environment variable. 399 40020120422: 401 Now unix domain sockets behave "as expected" on nullfs(5). Previously 402 nullfs(5) did not pass through all behaviours to the underlying layer, 403 as a result if we bound to a socket on the lower layer we could connect 404 only to the lower path; if we bound to the upper layer we could connect 405 only to the upper path. The new behavior is one can connect to both the 406 lower and the upper paths regardless what layer path one binds to. 407 40820120109: 409 The acpi_wmi(4) status device /dev/wmistat has been renamed to 410 /dev/wmistat0. 411 41220120106: 413 A new VOP_ADVISE() was added to support posix_fadvise(2). All 414 filesystem modules must be recompiled. 415 41620120106: 417 The interface of the VOP_VPTOCNP(9) changed, now the returned 418 vnode shall be referenced, previously it was required to be 419 only held. All in-tree filesystems are converted. 420 42120120106: 422 9.0-RELEASE. 423 42420111101: 425 The broken amd(4) driver has been replaced with esp(4) in the amd64, 426 i386 and pc98 GENERIC kernel configuration files. 427 42820110913: 429 This commit modifies vfs_register() so that it uses a hash 430 calculation to set vfc_typenum, which is enabled by default. 431 The first time a system is booted after this change, the 432 vfc_typenum values will change for all file systems. The 433 main effect of this is a change to the NFS server file handles 434 for file systems that use vfc_typenum in their fsid, such as ZFS. 435 It will, however, prevent vfc_typenum from changing when file 436 systems are loaded in a different order for subsequent reboots. 437 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 438 until you are ready to remount all NFS clients after a reboot. 439 44020110828: 441 Bump the shared library version numbers for libraries that 442 do not use symbol versioning, have changed the ABI compared 443 to stable/8 and which shared library version was not bumped. 444 Done as part of 9.0-RELEASE cycle. 445 44620110815: 447 During the merge of Capsicum features, the fget(9) KPI was modified. 448 This may require the rebuilding of out-of-tree device drivers -- 449 issues have been reported specifically with the nVidia device driver. 450 __FreeBSD_version is bumped to 900041. 451 452 Also, there is a period between 20110811 and 20110814 where the 453 special devices /dev/{stdin,stdout,stderr} did not work correctly. 454 Building world from a kernel during that window may not work. 455 45620110628: 457 The packet filter (pf) code has been updated to OpenBSD 4.5. 458 You need to update userland tools to be in sync with kernel. 459 This update breaks backward compatibility with earlier pfsync(4) 460 versions. Care must be taken when updating redundant firewall setups. 461 46220110608: 463 The following sysctls and tunables are retired on x86 platforms: 464 machdep.hlt_cpus 465 machdep.hlt_logical_cpus 466 The following sysctl is retired: 467 machdep.hyperthreading_allowed 468 The sysctls were supposed to provide a way to dynamically offline and 469 online selected CPUs on x86 platforms, but the implementation has not 470 been reliable especially with SCHED_ULE scheduler. 471 machdep.hyperthreading_allowed tunable is still available to ignore 472 hyperthreading CPUs at OS level. 473 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 474 where X is an APIC ID of a CPU. Be advised, though, that disabling 475 CPUs in non-uniform fashion will result in non-uniform topology and 476 may lead to sub-optimal system performance with SCHED_ULE, which is 477 a default scheduler. 478 47920110607: 480 cpumask_t type is retired and cpuset_t is used in order to describe 481 a mask of CPUs. 482 48320110531: 484 Changes to ifconfig(8) for dynamic address family detection mandate 485 that you are running a kernel of 20110525 or later. Make sure to 486 follow the update procedure to boot a new kernel before installing 487 world. 488 48920110513: 490 Support for sun4v architecture is officially dropped 491 49220110503: 493 Several KPI breaking changes have been committed to the mii(4) layer, 494 the PHY drivers and consequently some Ethernet drivers using mii(4). 495 This means that miibus.ko and the modules of the affected Ethernet 496 drivers need to be recompiled. 497 498 Note to kernel developers: Given that the OUI bit reversion problem 499 was fixed as part of these changes all mii(4) commits related to OUIs, 500 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 501 handling, no longer can be merged verbatim to stable/8 and previous 502 branches. 503 50420110430: 505 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 506 into their kernel configurations along with 'device pci'. 507 50820110427: 509 The default NFS client is now the new NFS client, so fstype "newnfs" 510 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 511 Although mounts via fstype "nfs" will usually work without userland 512 changes, it is recommended that the mount(8) and mount_nfs(8) 513 commands be rebuilt from sources and that a link to mount_nfs called 514 mount_oldnfs be created. The new client is compiled into the 515 kernel with "options NFSCL" and this is needed for diskless root 516 file systems. The GENERIC kernel configs have been changed to use 517 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 518 To use the regular/old client, you can "mount -t oldnfs ...". For 519 a diskless root file system, you must also include a line like: 520 521 vfs.root.mountfrom="oldnfs:" 522 523 in the boot/loader.conf on the root fs on the NFS server to make 524 a diskless root fs use the old client. 525 52620110424: 527 The GENERIC kernels for all architectures now default to the new 528 CAM-based ATA stack. It means that all legacy ATA drivers were 529 removed and replaced by respective CAM drivers. If you are using 530 ATA device names in /etc/fstab or other places, make sure to update 531 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 532 where 'Y's are the sequential numbers starting from zero for each type 533 in order of detection, unless configured otherwise with tunables, 534 see cam(4)). There will be symbolic links created in /dev/ to map 535 old adX devices to the respective adaY. They should provide basic 536 compatibility for file systems mounting in most cases, but they do 537 not support old user-level APIs and do not have respective providers 538 in GEOM. Consider using updated management tools with new device names. 539 540 It is possible to load devices ahci, ata, siis and mvs as modules, 541 but option ATA_CAM should remain in kernel configuration to make ata 542 module work as CAM driver supporting legacy ATA controllers. Device ata 543 still can be used in modular fashion (atacore + ...). Modules atadisk 544 and atapi* are not used and won't affect operation in ATA_CAM mode. 545 Note that to use CAM-based ATA kernel should include CAM devices 546 scbus, pass, da (or explicitly ada), cd and optionally others. All of 547 them are parts of the cam module. 548 549 ataraid(4) functionality is now supported by the RAID GEOM class. 550 To use it you can load geom_raid kernel module and use graid(8) tool 551 for management. Instead of /dev/arX device names, use /dev/raid/rX. 552 553 No kernel config options or code have been removed, so if a problem 554 arises, please report it and optionally revert to the old ATA stack. 555 In order to do it you can remove from the kernel config: 556 options ATA_CAM 557 device ahci 558 device mvs 559 device siis 560 , and instead add back: 561 device atadisk # ATA disk drives 562 device ataraid # ATA RAID drives 563 device atapicd # ATAPI CDROM drives 564 device atapifd # ATAPI floppy drives 565 device atapist # ATAPI tape drives 566 56720110423: 568 The default NFS server has been changed to the new server, which 569 was referred to as the experimental server. If you need to switch 570 back to the old NFS server, you must now put the "-o" option on 571 both the mountd and nfsd commands. This can be done using the 572 mountd_flags and nfs_server_flags rc.conf variables until an 573 update to the rc scripts is committed, which is coming soon. 574 57520110418: 576 The GNU Objective-C runtime library (libobjc), and other Objective-C 577 related components have been removed from the base system. If you 578 require an Objective-C library, please use one of the available ports. 579 58020110331: 581 ath(4) has been split into bus- and device- modules. if_ath contains 582 the HAL, the TX rate control and the network device code. if_ath_pci 583 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 584 contains the AHB glue. Users need to load both if_ath_pci and if_ath 585 in order to use ath on everything else. 586 587 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 588 need to load if_ath and if_ath_pci for ath(4) operation. 589 59020110314: 591 As part of the replacement of sysinstall, the process of building 592 release media has changed significantly. For details, please re-read 593 release(7), which has been updated to reflect the new build process. 594 59520110218: 596 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 597 is the last available version under GPLv2. It brings a number of new 598 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 599 4.1 and SSE 4.2), better support for powerpc64, a number of new 600 directives, and lots of other small improvements. See the ChangeLog 601 file in contrib/binutils for the full details. 602 60320110218: 604 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 605 compliant, and will now use half of hash for authentication. 606 This will break interoperability with all stacks (including all 607 actual FreeBSD versions) who implement 608 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 609 authentication). 610 The only workaround with such peers is to use another HMAC 611 algorithm for IPsec ("phase 2") authentication. 612 61320110207: 614 Remove the uio_yield prototype and symbol. This function has 615 been misnamed since it was introduced and should not be 616 globally exposed with this name. The equivalent functionality 617 is now available using kern_yield(curthread->td_user_pri). 618 The function remains undocumented. 619 62020110112: 621 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 622 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 623 for scalar sysctls is defined but disabled. Code that needs 624 UQUAD to pass the type checking that must compile on older 625 systems where the define is not present can check against 626 __FreeBSD_version >= 900030. 627 628 The system dialog(1) has been replaced with a new version previously 629 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 630 with the previous version, but the libdialog associated with it has 631 a largely incompatible API. As such, the original version of libdialog 632 will be kept temporarily as libodialog, until its base system consumers 633 are replaced or updated. Bump __FreeBSD_version to 900030. 634 63520110103: 636 If you are trying to run make universe on a -stable system, and you get 637 the following warning: 638 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 639 unknown. config(8) likely too old." 640 or something similar to it, then you must upgrade your -stable system 641 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 642 stable/8) or build the config from the latest stable/8 branch and 643 install it on your system. 644 645 Prior to this date, building a current universe on 8-stable system from 646 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 647 error in the first kernel build phase. A new config on those old 648 systems will fix that problem for older versions of -current. 649 65020101228: 651 The TCP stack has been modified to allow Khelp modules to interact with 652 it via helper hook points and store per-connection data in the TCP 653 control block. Bump __FreeBSD_version to 900029. User space tools that 654 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 655 be recompiled. 656 65720101114: 658 Generic IEEE 802.3 annex 31B full duplex flow control support has been 659 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 660 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 661 to take advantage of it instead of using custom implementations. This 662 means that these drivers now no longer unconditionally advertise 663 support for flow control but only do so if flow control is a selected 664 media option. This was implemented in the generic support that way in 665 order to allow flow control to be switched on and off via ifconfig(8) 666 with the PHY specific default to typically off in order to protect 667 from unwanted effects. Consequently, if you used flow control with 668 one of the above mentioned drivers you now need to explicitly enable 669 it, for example via: 670 ifconfig bge0 media auto mediaopt flowcontrol 671 672 Along with the above mentioned changes generic support for setting 673 1000baseT master mode also has been added and brgphy(4), ciphy(4), 674 e1000phy(4) as well as ip1000phy(4) have been converted to take 675 advantage of it. This means that these drivers now no longer take the 676 link0 parameter for selecting master mode but the master media option 677 has to be used instead, for example like in the following: 678 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 679 680 Selection of master mode now is also available with all other PHY 681 drivers supporting 1000baseT. 682 68320101111: 684 The TCP stack has received a significant update to add support for 685 modularised congestion control and generally improve the clarity of 686 congestion control decisions. Bump __FreeBSD_version to 900025. User 687 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 688 sockstat) need to be recompiled. 689 69020101002: 691 The man(1) utility has been replaced by a new version that no longer 692 uses /etc/manpath.config. Please consult man.conf(5) for how to 693 migrate local entries to the new format. 694 69520100928: 696 The copyright strings printed by login(1) and sshd(8) at the time of a 697 new connection have been removed to follow other operating systems and 698 upstream sshd. 699 70020100915: 701 A workaround for a fixed ld bug has been removed in kernel code, 702 so make sure that your system ld is built from sources after 703 revision 210245 from 2010-07-19 (r211583 if building head kernel 704 on stable/8, r211584 for stable/7; both from 2010-08-21). 705 A symptom of incorrect ld version is different addresses for 706 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 707 70820100913: 709 The $ipv6_prefer variable in rc.conf(5) has been split into 710 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 711 712 The $ip6addrctl_policy is a variable to choose a pre-defined 713 address selection policy set by ip6addrctl(8). A value 714 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 715 default is "AUTO". 716 717 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 718 flag (see an entry of 20090926) is set on an interface with no 719 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 720 security reason. If you want IPv6 link-local address on all 721 interfaces by default, set this to "YES". 722 723 The old ipv6_prefer="YES" is equivalent to 724 ipv6_activate_all_interfaces="YES" and 725 ip6addrctl_policy="ipv6_prefer". 726 72720100913: 728 DTrace has grown support for userland tracing. Due to this, DTrace is 729 now i386 and amd64 only. 730 dtruss(1) is now installed by default on those systems and a new 731 kernel module is needed for userland tracing: fasttrap. 732 No changes to your kernel config file are necessary to enable 733 userland tracing, but you might consider adding 'STRIP=' and 734 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 735 to have informative userland stack traces in DTrace (ustack). 736 73720100725: 738 The acpi_aiboost(4) driver has been removed in favor of the new 739 aibs(4) driver. You should update your kernel configuration file. 740 74120100722: 742 BSD grep has been imported to the base system and it is built by 743 default. It is completely BSD licensed, highly GNU-compatible, uses 744 less memory than its GNU counterpart and has a small codebase. 745 However, it is slower than its GNU counterpart, which is mostly 746 noticeable for larger searches, for smaller ones it is measurable 747 but not significant. The reason is complex, the most important factor 748 is that we lack a modern and efficient regex library and GNU 749 overcomes this by optimizing the searches internally. Future work 750 on improving the regex performance is planned, for the meantime, 751 users that need better performance, can build GNU grep instead by 752 setting the WITH_GNU_GREP knob. 753 75420100713: 755 Due to the import of powerpc64 support, all existing powerpc kernel 756 configuration files must be updated with a machine directive like this: 757 machine powerpc powerpc 758 759 In addition, an updated config(8) is required to build powerpc kernels 760 after this change. 761 76220100713: 763 A new version of ZFS (version 15) has been merged to -HEAD. 764 This version uses a python library for the following subcommands: 765 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 766 For full functionality of these commands the following port must 767 be installed: sysutils/py-zfs 768 76920100429: 770 'vm_page's are now hashed by physical address to an array of mutexes. 771 Currently this is only used to serialize access to hold_count. Over 772 time the page queue mutex will be peeled away. This changes the size 773 of pmap on every architecture. And requires all callers of vm_page_hold 774 and vm_page_unhold to be updated. 775 77620100402: 777 WITH_CTF can now be specified in src.conf (not recommended, there 778 are some problems with static executables), make.conf (would also 779 affect ports which do not use GNU make and do not override the 780 compile targets) or in the kernel config (via "makeoptions 781 WITH_CTF=yes"). 782 When WITH_CTF was specified there before this was silently ignored, 783 so make sure that WITH_CTF is not used in places which could lead 784 to unwanted behavior. 785 78620100311: 787 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 788 to allow 32-bit compatibility on non-x86 platforms. All kernel 789 configurations on amd64 and ia64 platforms using these options must 790 be modified accordingly. 791 79220100113: 793 The utmp user accounting database has been replaced with utmpx, 794 the user accounting interface standardized by POSIX. 795 Unfortunately the semantics of utmp and utmpx don't match, 796 making it practically impossible to support both interfaces. 797 The user accounting database is used by tools like finger(1), 798 last(1), talk(1), w(1) and ac(8). 799 800 All applications in the base system use utmpx. This means only 801 local binaries (e.g. from the ports tree) may still use these 802 utmp database files. These applications must be rebuilt to make 803 use of utmpx. 804 805 After the system has been upgraded, it is safe to remove the old 806 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 807 assuming their contents is of no importance anymore. Old wtmp 808 databases can only be used by last(1) and ac(8) after they have 809 been converted to the new format using wtmpcvt(1). 810 81120100108: 812 Introduce the kernel thread "deadlock resolver" (which can be enabled 813 via the DEADLKRES option, see NOTES for more details) and the 814 sleepq_type() function for sleepqueues. 815 81620091202: 817 The rc.firewall and rc.firewall6 were unified, and 818 rc.firewall6 and rc.d/ip6fw were removed. 819 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 820 variables are obsoleted. Instead, the following new rc 821 variables are added to rc.d/ipfw: 822 823 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 824 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 825 firewall_simple_onet_ipv6, firewall_trusted_ipv6 826 827 The meanings correspond to the relevant IPv4 variables. 828 82920091125: 830 8.0-RELEASE. 831 83220091113: 833 The default terminal emulation for syscons(4) has been changed 834 from cons25 to xterm on all platforms except pc98. This means 835 that the /etc/ttys file needs to be updated to ensure correct 836 operation of applications on the console. 837 838 The terminal emulation style can be toggled per window by using 839 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 840 options can be used to change the compile-time default back to 841 cons25. 842 843 To prevent graphical artifacts, make sure the TERM environment 844 variable is set to match the terminal emulation that is being 845 performed by syscons(4). 846 84720091109: 848 The layout of the structure ieee80211req_scan_result has changed. 849 Applications that require wireless scan results (e.g. ifconfig(8)) 850 from net80211 need to be recompiled. 851 852 Applications such as wpa_supplicant(8) may require a full world 853 build without using NO_CLEAN in order to get synchronized with the 854 new structure. 855 85620091025: 857 The iwn(4) driver has been updated to support the 5000 and 5150 series. 858 There's one kernel module for each firmware. Adding "device iwnfw" 859 to the kernel configuration file means including all three firmware 860 images inside the kernel. If you want to include just the one for 861 your wireless card, use the devices iwn4965fw, iwn5000fw or 862 iwn5150fw. 863 86420090926: 865 The rc.d/network_ipv6, IPv6 configuration script has been integrated 866 into rc.d/netif. The changes are the following: 867 868 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 869 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 870 Note that both variables need the "inet6" keyword at the head. 871 872 Do not set $ipv6_network_interfaces manually if you do not 873 understand what you are doing. It is not needed in most cases. 874 875 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 876 they are obsolete. 877 878 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 879 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 880 881 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 882 all configured interfaces have "inet6 accept_rtadv" in the 883 $ifconfig_IF_ipv6. These are for backward compatibility. 884 885 3. A new variable $ipv6_prefer has been added. If NO, IPv6 886 functionality of interfaces with no corresponding 887 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 888 and the default address selection policy of ip6addrctl(8) 889 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 890 Note that if you want to configure IPv6 functionality on the 891 disabled interfaces after boot, first you need to clear the flag by 892 using ifconfig(8) like: 893 894 ifconfig em0 inet6 -ifdisabled 895 896 If YES, the default address selection policy is set as 897 IPv6-preferred. 898 899 The default value of $ipv6_prefer is NO. 900 901 4. If your system need to receive Router Advertisement messages, 902 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 903 scripts automatically invoke rtsol(8) when the interface becomes 904 UP. The Router Advertisement messages are used for SLAAC 905 (State-Less Address AutoConfiguration). 906 90720090922: 908 802.11s D3.03 support was committed. This is incompatible with the 909 previous code, which was based on D3.0. 910 91120090912: 912 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 913 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 914 control whether accepting Router Advertisement messages or not. 915 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 916 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 917 The ifconfig(8) utility now supports these flags. 918 91920090910: 920 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 921 mount(8) and -a option for df(1) to see them. 922 92320090825: 924 The old tunable hw.bus.devctl_disable has been superseded by 925 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 926 replaced by hw.bus.devctl_queue=0. The default for this new tunable 927 is 1000. 928 92920090813: 930 Remove the option STOP_NMI. The default action is now to use NMI only 931 for KDB via the newly introduced function stop_cpus_hard() and 932 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 933 93420090803: 935 The stable/8 branch created in subversion. This corresponds to the 936 RELENG_8 branch in CVS. 937 93820090719: 939 Bump the shared library version numbers for all libraries that do not 940 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 941 __FreeBSD_version to 800105. 942 94320090714: 944 Due to changes in the implementation of virtual network stack support, 945 all network-related kernel modules must be recompiled. As this change 946 breaks the ABI, bump __FreeBSD_version to 800104. 947 94820090713: 949 The TOE interface to the TCP syncache has been modified to remove 950 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 951 The cxgb driver is the only TOE consumer affected by this change, and 952 needs to be recompiled along with the kernel. As this change breaks 953 the ABI, bump __FreeBSD_version to 800103. 954 95520090712: 956 Padding has been added to struct tcpcb, sackhint and tcpstat in 957 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 958 maintaining the ABI. However, this change breaks the ABI, so bump 959 __FreeBSD_version to 800102. User space tools that rely on the size of 960 any of these structs (e.g. sockstat) need to be recompiled. 961 96220090630: 963 The NFS_LEGACYRPC option has been removed along with the old kernel 964 RPC implementation that this option selected. Kernel configurations 965 may need to be adjusted. 966 96720090629: 968 The network interface device nodes at /dev/net/<interface> have been 969 removed. All ioctl operations can be performed the normal way using 970 routing sockets. The kqueue functionality can generally be replaced 971 with routing sockets. 972 97320090628: 974 The documentation from the FreeBSD Documentation Project (Handbook, 975 FAQ, etc.) is now installed via packages by sysinstall(8) and under 976 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 977 97820090624: 979 The ABI of various structures related to the SYSV IPC API have been 980 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 981 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 982 800100. 983 98420090622: 985 Layout of struct vnet has changed as routing related variables were 986 moved to their own Vimage module. Modules need to be recompiled. Bump 987 __FreeBSD_version to 800099. 988 98920090619: 990 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 991 respectively. As long as no more than 16 groups per process are used, 992 no changes should be visible. When more than 16 groups are used, old 993 binaries may fail if they call getgroups() or getgrouplist() with 994 statically sized storage. Recompiling will work around this, but 995 applications should be modified to use dynamically allocated storage 996 for group arrays as POSIX.1-2008 does not cap an implementation's 997 number of supported groups at NGROUPS_MAX+1 as previous versions did. 998 999 NFS and portalfs mounts may also be affected as the list of groups is 1000 truncated to 16. Users of NFS who use more than 16 groups, should 1001 take care that negative group permissions are not used on the exported 1002 file systems as they will not be reliable unless a GSSAPI based 1003 authentication method is used. 1004 100520090616: 1006 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1007 option compiles in the support for adaptive spinning for lockmgrs 1008 which want to enable it. The lockinit() function now accepts the flag 1009 LK_ADAPTIVE in order to make the lock object subject to adaptive 1010 spinning when both held in write and read mode. 1011 101220090613: 1013 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1014 changed. User applications that use this ioctl need to be rebuilt. 1015 101620090611: 1017 The layout of struct thread has changed. Kernel and modules need to 1018 be rebuilt. 1019 102020090608: 1021 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1022 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1023 102420090602: 1025 window(1) has been removed from the base system. It can now be 1026 installed from ports. The port is called misc/window. 1027 102820090601: 1029 The way we are storing and accessing `routing table' entries has 1030 changed. Programs reading the FIB, like netstat, need to be 1031 re-compiled. 1032 103320090601: 1034 A new netisr implementation has been added for FreeBSD 8. Network 1035 file system modules, such as igmp, ipdivert, and others, should be 1036 rebuilt. 1037 Bump __FreeBSD_version to 800096. 1038 103920090530: 1040 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1041 more valid. 1042 104320090530: 1044 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1045 Bump __FreeBSD_version to 800094. 1046 104720090529: 1048 Add mnt_xflag field to 'struct mount'. File system modules need to be 1049 rebuilt. 1050 Bump __FreeBSD_version to 800093. 1051 105220090528: 1053 The compiling option ADAPTIVE_SX has been retired while it has been 1054 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1055 The KPI for sx_init_flags() changes as accepting flags: 1056 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1057 been introduced in order to handle the reversed logic. 1058 Bump __FreeBSD_version to 800092. 1059 106020090527: 1061 Add support for hierarchical jails. Remove global securelevel. 1062 Bump __FreeBSD_version to 800091. 1063 106420090523: 1065 The layout of struct vnet_net has changed, therefore modules 1066 need to be rebuilt. 1067 Bump __FreeBSD_version to 800090. 1068 106920090523: 1070 The newly imported zic(8) produces a new format in the output. Please 1071 run tzsetup(8) to install the newly created data to /etc/localtime. 1072 107320090520: 1074 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1075 hw.usb.* and is now consistent again with previous releases. 1076 107720090520: 1078 802.11 monitor mode support was revised and driver api's were changed. 1079 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1080 of DLT_IEEE802_11. No user-visible data structures were changed but 1081 applications that use DLT_IEEE802_11 may require changes. 1082 Bump __FreeBSD_version to 800088. 1083 108420090430: 1085 The layout of the following structs has changed: sysctl_oid, 1086 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1087 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1088 panics may be experienced. World rebuild is required for 1089 correctly checking networking state from userland. 1090 Bump __FreeBSD_version to 800085. 1091 109220090429: 1093 MLDv2 and Source-Specific Multicast (SSM) have been merged 1094 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1095 The implementation of SSM within FreeBSD's IPv6 stack closely 1096 follows the IPv4 implementation. 1097 1098 For kernel developers: 1099 1100 * The most important changes are that the ip6_output() and 1101 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1102 and this lock has been downgraded to a non-recursive mutex. 1103 1104 * As with the changes to the IPv4 stack to support SSM, filtering 1105 of inbound multicast traffic must now be performed by transport 1106 protocols within the IPv6 stack. This does not apply to TCP and 1107 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1108 1109 * The KPIs used by IPv6 multicast are similar to those used by 1110 the IPv4 stack, with the following differences: 1111 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1112 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1113 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1114 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1115 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1116 for MLDv1 have an additional 'timer' argument which is used to 1117 jitter the initial membership report for the solicited-node 1118 multicast membership on-link. 1119 * This is not strictly needed for MLDv2, which already jitters 1120 its report transmissions. However, the 'timer' argument is 1121 preserved in case MLDv1 is active on the interface. 1122 1123 * The KAME linked-list based IPv6 membership implementation has 1124 been refactored to use a vector similar to that used by the IPv4 1125 stack. 1126 Code which maintains a list of its own multicast memberships 1127 internally, e.g. carp, has been updated to reflect the new 1128 semantics. 1129 1130 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1131 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1132 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1133 implementation constraint which needs to be addressed in HEAD. 1134 1135 For application developers: 1136 1137 * The changes are broadly similar to those made for the IPv4 1138 stack. 1139 1140 * The use of IPv4 and IPv6 multicast socket options on the same 1141 socket, using mapped addresses, HAS NOT been tested or supported. 1142 1143 * There are a number of issues with the implementation of various 1144 IPv6 multicast APIs which need to be resolved in the API surface 1145 before the implementation is fully compatible with KAME userland 1146 use, and these are mostly to do with interface index treatment. 1147 1148 * The literature available discusses the use of either the delta / ASM 1149 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1150 using setsourcefilter(3)/getsourcefilter(3). For more information 1151 please refer to RFC 3768, 'Socket Interface Extensions for 1152 Multicast Source Filters'. 1153 1154 * Applications which use the published RFC 3678 APIs should be fine. 1155 1156 For systems administrators: 1157 1158 * The mtest(8) utility has been refactored to support IPv6, in 1159 addition to IPv4. Interface addresses are no longer accepted 1160 as arguments, their names must be used instead. The utility 1161 will map the interface name to its first IPv4 address as 1162 returned by getifaddrs(3). 1163 1164 * The ifmcstat(8) utility has also been updated to print the MLDv2 1165 endpoint state and source filter lists via sysctl(3). 1166 1167 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1168 loopback of IPv6 multicast datagrams by default; it defaults to 1 1169 to preserve the existing behaviour. Disabling multicast loopback is 1170 recommended for optimal system performance. 1171 1172 * The IPv6 MROUTING code has been changed to examine this sysctl 1173 instead of attempting to perform a group lookup before looping 1174 back forwarded datagrams. 1175 1176 Bump __FreeBSD_version to 800084. 1177 117820090422: 1179 Implement low-level Bluetooth HCI API. 1180 Bump __FreeBSD_version to 800083. 1181 118220090419: 1183 The layout of struct malloc_type, used by modules to register new 1184 memory allocation types, has changed. Most modules will need to 1185 be rebuilt or panics may be experienced. 1186 Bump __FreeBSD_version to 800081. 1187 118820090415: 1189 Anticipate overflowing inp_flags - add inp_flags2. 1190 This changes most offsets in inpcb, so checking v4 connection 1191 state will require a world rebuild. 1192 Bump __FreeBSD_version to 800080. 1193 119420090415: 1195 Add an llentry to struct route and struct route_in6. Modules 1196 embedding a struct route will need to be recompiled. 1197 Bump __FreeBSD_version to 800079. 1198 119920090414: 1200 The size of rt_metrics_lite and by extension rtentry has changed. 1201 Networking administration apps will need to be recompiled. 1202 The route command now supports show as an alias for get, weighting 1203 of routes, sticky and nostick flags to alter the behavior of stateful 1204 load balancing. 1205 Bump __FreeBSD_version to 800078. 1206 120720090408: 1208 Do not use Giant for kbdmux(4) locking. This is wrong and 1209 apparently causing more problems than it solves. This will 1210 re-open the issue where interrupt handlers may race with 1211 kbdmux(4) in polling mode. Typical symptoms include (but 1212 not limited to) duplicated and/or missing characters when 1213 low level console functions (such as gets) are used while 1214 interrupts are enabled (for example geli password prompt, 1215 mountroot prompt etc.). Disabling kbdmux(4) may help. 1216 121720090407: 1218 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1219 kernel modules referencing any of the above need to be recompiled. 1220 Bump __FreeBSD_version to 800075. 1221 122220090320: 1223 GEOM_PART has become the default partition slicer for storage devices, 1224 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1225 introduces some changes: 1226 1227 MSDOS/EBR: the devices created from MSDOS extended partition entries 1228 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1229 to devices with offset-based names. fstabs may need to be modified. 1230 1231 BSD: the "geometry does not match label" warning is harmless in most 1232 cases but it points to problems in file system misalignment with 1233 disk geometry. The "c" partition is now implicit, covers the whole 1234 top-level drive and cannot be (mis)used by users. 1235 1236 General: Kernel dumps are now not allowed to be written to devices 1237 whose partition types indicate they are meant to be used for file 1238 systems (or, in case of MSDOS partitions, as something else than 1239 the "386BSD" type). 1240 1241 Most of these changes date approximately from 200812. 1242 124320090319: 1244 The uscanner(4) driver has been removed from the kernel. This follows 1245 Linux removing theirs in 2.6 and making libusb the default interface 1246 (supported by sane). 1247 124820090319: 1249 The multicast forwarding code has been cleaned up. netstat(1) 1250 only relies on KVM now for printing bandwidth upcall meters. 1251 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1252 ip6_mroute_mod respectively. The config(5) options for statically 1253 compiling this code remain the same, i.e. 'options MROUTING'. 1254 125520090315: 1256 Support for the IFF_NEEDSGIANT network interface flag has been 1257 removed, which means that non-MPSAFE network device drivers are no 1258 longer supported. In particular, if_ar, if_sr, and network device 1259 drivers from the old (legacy) USB stack can no longer be built or 1260 used. 1261 126220090313: 1263 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1264 a bunch of new language catalog files have also been added. 1265 This means that some common libc messages are now localized and 1266 they depend on the LC_MESSAGES environmental variable. 1267 126820090313: 1269 The k8temp(4) driver has been renamed to amdtemp(4) since 1270 support for Family 10 and Family 11 CPU families was added. 1271 127220090309: 1273 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1274 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1275 1276 For kernel developers, the most important changes are that the 1277 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1278 and this lock has been downgraded to a non-recursive mutex. 1279 1280 Transport protocols (UDP, Raw IP) are now responsible for filtering 1281 inbound multicast traffic according to group membership and source 1282 filters. The imo_multicast_filter() KPI exists for this purpose. 1283 Transports which do not use multicast (SCTP, TCP) already reject 1284 multicast by default. Forwarding and receive performance may improve 1285 as a mutex acquisition is no longer needed in the ip_input() 1286 low-level input path. in_addmulti() and in_delmulti() are shimmed 1287 to new KPIs which exist to support SSM in-kernel. 1288 1289 For application developers, it is recommended that loopback of 1290 multicast datagrams be disabled for best performance, as this 1291 will still cause the lock to be taken for each looped-back 1292 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1293 be tuned to 0 to disable loopback by default; it defaults to 1 1294 to preserve the existing behaviour. 1295 1296 For systems administrators, to obtain best performance with 1297 multicast reception and multiple groups, it is always recommended 1298 that a card with a suitably precise hash filter is used. Hash 1299 collisions will still result in the lock being taken within the 1300 transport protocol input path to check group membership. 1301 1302 If deploying FreeBSD in an environment with IGMP snooping switches, 1303 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1304 enabled; this forces 224.0.0.0/24 group membership to be announced 1305 via IGMP. 1306 1307 The size of 'struct igmpstat' has changed; netstat needs to be 1308 recompiled to reflect this. 1309 Bump __FreeBSD_version to 800070. 1310 131120090309: 1312 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1313 updated to use it. This requires a buildworld/installworld in order to 1314 update the library and dependencies (usbconfig, etc). Its advisable to 1315 rebuild all ports which uses libusb. More specific directions are given 1316 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1317 libusb are no longer required and can be removed. 1318 131920090302: 1320 A workaround is committed to allow the creation of System V shared 1321 memory segment of size > 2 GB on the 64-bit architectures. 1322 Due to a limitation of the existing ABI, the shm_segsz member 1323 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1324 wrong for large segments. Note that limits must be explicitly 1325 raised to allow such segments to be created. 1326 132720090301: 1328 The layout of struct ifnet has changed, requiring a rebuild of all 1329 network device driver modules. 1330 133120090227: 1332 The /dev handling for the new USB stack has changed, a 1333 buildworld/installworld is required for libusb20. 1334 133520090223: 1336 The new USB2 stack has now been permanently moved in and all kernel and 1337 module names reverted to their previous values (eg, usb, ehci, ohci, 1338 ums, ...). The old usb stack can be compiled in by prefixing the name 1339 with the letter 'o', the old usb modules have been removed. 1340 Updating entry 20090216 for xorg and 20090215 for libmap may still 1341 apply. 1342 134320090217: 1344 The rc.conf(5) option if_up_delay has been renamed to 1345 defaultroute_delay to better reflect its purpose. If you have 1346 customized this setting in /etc/rc.conf you need to update it to 1347 use the new name. 1348 134920090216: 1350 xorg 7.4 wants to configure its input devices via hald which does not 1351 yet work with USB2. If the keyboard/mouse does not work in xorg then 1352 add 1353 Option "AllowEmptyInput" "off" 1354 to your ServerLayout section. This will cause X to use the configured 1355 kbd and mouse sections from your xorg.conf. 1356 135720090215: 1358 The GENERIC kernels for all architectures now default to the new USB2 1359 stack. No kernel config options or code have been removed so if a 1360 problem arises please report it and optionally revert to the old USB 1361 stack. If you are loading USB kernel modules or have a custom kernel 1362 that includes GENERIC then ensure that usb names are also changed over, 1363 eg uftdi -> usb2_serial_ftdi. 1364 1365 Older programs linked against the ports libusb 0.1 need to be 1366 redirected to the new stack's libusb20. /etc/libmap.conf can 1367 be used for this: 1368 # Map old usb library to new one for usb2 stack 1369 libusb-0.1.so.8 libusb20.so.1 1370 137120090209: 1372 All USB ethernet devices now attach as interfaces under the name ueN 1373 (eg. ue0). This is to provide a predictable name as vendors often 1374 change usb chipsets in a product without notice. 1375 137620090203: 1377 The ichsmb(4) driver has been changed to require SMBus slave 1378 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1379 All of the other SMBus controller drivers require left-justified 1380 slave addresses, so this change makes all the drivers provide the 1381 same interface. 1382 138320090201: 1384 INET6 statistics (struct ip6stat) was updated. 1385 netstat(1) needs to be recompiled. 1386 138720090119: 1388 NTFS has been removed from GENERIC kernel on amd64 to match 1389 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1390 will load ntfs.ko module automatically when NTFS support is 1391 actually needed, unless ntfs.ko is not installed or security 1392 level prohibits loading kernel modules. If either is the case, 1393 "options NTFS" has to be added into kernel config. 1394 139520090115: 1396 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1397 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1398 800061. User space tools that rely on the size of struct tcpcb in 1399 tcp_var.h (e.g. sockstat) need to be recompiled. 1400 140120081225: 1402 ng_tty(4) module updated to match the new TTY subsystem. 1403 Due to API change, user-level applications must be updated. 1404 New API support added to mpd5 CVS and expected to be present 1405 in next mpd5.3 release. 1406 140720081219: 1408 With __FreeBSD_version 800060 the makefs tool is part of 1409 the base system (it was a port). 1410 141120081216: 1412 The afdata and ifnet locks have been changed from mutexes to 1413 rwlocks, network modules will need to be re-compiled. 1414 141520081214: 1416 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1417 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1418 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1419 architecture and 40 bytes on 64-bit architecture. The userland 1420 applications "arp" and "ndp" have been updated accordingly. 1421 The output from "netstat -r" shows only routing entries and 1422 none of the L2 information. 1423 142420081130: 1425 __FreeBSD_version 800057 marks the switchover from the 1426 binary ath hal to source code. Users must add the line: 1427 1428 options AH_SUPPORT_AR5416 1429 1430 to their kernel config files when specifying: 1431 1432 device ath_hal 1433 1434 The ath_hal module no longer exists; the code is now compiled 1435 together with the driver in the ath module. It is now 1436 possible to tailor chip support (i.e. reduce the set of chips 1437 and thereby the code size); consult ath_hal(4) for details. 1438 143920081121: 1440 __FreeBSD_version 800054 adds memory barriers to 1441 <machine/atomic.h>, new interfaces to ifnet to facilitate 1442 multiple hardware transmit queues for cards that support 1443 them, and a lock-less ring-buffer implementation to 1444 enable drivers to more efficiently manage queueing of 1445 packets. 1446 144720081117: 1448 A new version of ZFS (version 13) has been merged to -HEAD. 1449 This version has zpool attribute "listsnapshots" off by 1450 default, which means "zfs list" does not show snapshots, 1451 and is the same as Solaris behavior. 1452 145320081028: 1454 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1455 145620081009: 1457 The uhci, ohci, ehci and slhci USB Host controller drivers have 1458 been put into separate modules. If you load the usb module 1459 separately through loader.conf you will need to load the 1460 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1461 controller add the following to loader.conf: 1462 1463 uhci_load="YES" 1464 ehci_load="YES" 1465 146620081009: 1467 The ABI used by the PMC toolset has changed. Please keep 1468 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1469 sync. 1470 147120081009: 1472 atapci kernel module now includes only generic PCI ATA 1473 driver. AHCI driver moved to ataahci kernel module. 1474 All vendor-specific code moved into separate kernel modules: 1475 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1476 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1477 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1478 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1479 148020080820: 1481 The TTY subsystem of the kernel has been replaced by a new 1482 implementation, which provides better scalability and an 1483 improved driver model. Most common drivers have been migrated to 1484 the new TTY subsystem, while others have not. The following 1485 drivers have not yet been ported to the new TTY layer: 1486 1487 PCI/ISA: 1488 cy, digi, rc, rp, sio 1489 1490 USB: 1491 ubser, ucycom 1492 1493 Line disciplines: 1494 ng_h4, ng_tty, ppp, sl, snp 1495 1496 Adding these drivers to your kernel configuration file shall 1497 cause compilation to fail. 1498 149920080818: 1500 ntpd has been upgraded to 4.2.4p5. 1501 150220080801: 1503 OpenSSH has been upgraded to 5.1p1. 1504 1505 For many years, FreeBSD's version of OpenSSH preferred DSA 1506 over RSA for host and user authentication keys. With this 1507 upgrade, we've switched to the vendor's default of RSA over 1508 DSA. This may cause upgraded clients to warn about unknown 1509 host keys even for previously known hosts. Users should 1510 follow the usual procedure for verifying host keys before 1511 accepting the RSA key. 1512 1513 This can be circumvented by setting the "HostKeyAlgorithms" 1514 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1515 command line. 1516 1517 Please note that the sequence of keys offered for 1518 authentication has been changed as well. You may want to 1519 specify IdentityFile in a different order to revert this 1520 behavior. 1521 152220080713: 1523 The sio(4) driver has been removed from the i386 and amd64 1524 kernel configuration files. This means uart(4) is now the 1525 default serial port driver on those platforms as well. 1526 1527 To prevent collisions with the sio(4) driver, the uart(4) driver 1528 uses different names for its device nodes. This means the 1529 onboard serial port will now most likely be called "ttyu0" 1530 instead of "ttyd0". You may need to reconfigure applications to 1531 use the new device names. 1532 1533 When using the serial port as a boot console, be sure to update 1534 /boot/device.hints and /etc/ttys before booting the new kernel. 1535 If you forget to do so, you can still manually specify the hints 1536 at the loader prompt: 1537 1538 set hint.uart.0.at="isa" 1539 set hint.uart.0.port="0x3F8" 1540 set hint.uart.0.flags="0x10" 1541 set hint.uart.0.irq="4" 1542 boot -s 1543 154420080609: 1545 The gpt(8) utility has been removed. Use gpart(8) to partition 1546 disks instead. 1547 154820080603: 1549 The version that Linuxulator emulates was changed from 2.4.2 1550 to 2.6.16. If you experience any problems with Linux binaries 1551 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1552 if it fixes the problem contact emulation mailing list. 1553 155420080525: 1555 ISDN4BSD (I4B) was removed from the src tree. You may need to 1556 update a your kernel configuration and remove relevant entries. 1557 155820080509: 1559 I have checked in code to support multiple routing tables. 1560 See the man pages setfib(1) and setfib(2). 1561 This is a hopefully backwards compatible version, 1562 but to make use of it you need to compile your kernel 1563 with options ROUTETABLES=2 (or more up to 16). 1564 156520080420: 1566 The 802.11 wireless support was redone to enable multi-bss 1567 operation on devices that are capable. The underlying device 1568 is no longer used directly but instead wlanX devices are 1569 cloned with ifconfig. This requires changes to rc.conf files. 1570 For example, change: 1571 ifconfig_ath0="WPA DHCP" 1572 to 1573 wlans_ath0=wlan0 1574 ifconfig_wlan0="WPA DHCP" 1575 see rc.conf(5) for more details. In addition, mergemaster of 1576 /etc/rc.d is highly recommended. Simultaneous update of userland 1577 and kernel wouldn't hurt either. 1578 1579 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1580 modules were merged into the base wlan module. All references 1581 to these modules (e.g. in kernel config files) must be removed. 1582 158320080408: 1584 psm(4) has gained write(2) support in native operation level. 1585 Arbitrary commands can be written to /dev/psm%d and status can 1586 be read back from it. Therefore, an application is responsible 1587 for status validation and error recovery. It is a no-op in 1588 other operation levels. 1589 159020080312: 1591 Support for KSE threading has been removed from the kernel. To 1592 run legacy applications linked against KSE libmap.conf may 1593 be used. The following libmap.conf may be used to ensure 1594 compatibility with any prior release: 1595 1596 libpthread.so.1 libthr.so.1 1597 libpthread.so.2 libthr.so.2 1598 libkse.so.3 libthr.so.3 1599 160020080301: 1601 The layout of struct vmspace has changed. This affects libkvm 1602 and any executables that link against libkvm and use the 1603 kvm_getprocs() function. In particular, but not exclusively, 1604 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1605 The effects are minimal, but it's advisable to upgrade world 1606 nonetheless. 1607 160820080229: 1609 The latest em driver no longer has support in it for the 1610 82575 adapter, this is now moved to the igb driver. The 1611 split was done to make new features that are incompatible 1612 with older hardware easier to do. 1613 161420080220: 1615 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1616 likewise the kernel option is now GEOM_LINUX_LVM. 1617 161820080211: 1619 The default NFS mount mode has changed from UDP to TCP for 1620 increased reliability. If you rely on (insecurely) NFS 1621 mounting across a firewall you may need to update your 1622 firewall rules. 1623 162420080208: 1625 Belatedly note the addition of m_collapse for compacting 1626 mbuf chains. 1627 162820080126: 1629 The fts(3) structures have been changed to use adequate 1630 integer types for their members and so to be able to cope 1631 with huge file trees. The old fts(3) ABI is preserved 1632 through symbol versioning in libc, so third-party binaries 1633 using fts(3) should still work, although they will not take 1634 advantage of the extended types. At the same time, some 1635 third-party software might fail to build after this change 1636 due to unportable assumptions made in its source code about 1637 fts(3) structure members. Such software should be fixed 1638 by its vendor or, in the worst case, in the ports tree. 1639 FreeBSD_version 800015 marks this change for the unlikely 1640 case that a portable fix is impossible. 1641 164220080123: 1643 To upgrade to -current after this date, you must be running 1644 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1645 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1646 164720071128: 1648 The ADAPTIVE_GIANT kernel option has been retired because its 1649 functionality is the default now. 1650 165120071118: 1652 The AT keyboard emulation of sunkbd(4) has been turned on 1653 by default. In order to make the special symbols of the Sun 1654 keyboards driven by sunkbd(4) work under X these now have 1655 to be configured the same way as Sun USB keyboards driven 1656 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1657 1658 Option "XkbLayout" "us" 1659 Option "XkbRules" "xorg" 1660 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1661 166220071024: 1663 It has been decided that it is desirable to provide ABI 1664 backwards compatibility to the FreeBSD 4/5/6 versions of the 1665 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1666 broken with the introduction of PCI domain support (see the 1667 20070930 entry). Unfortunately, this required the ABI of 1668 PCIOCGETCONF to be broken again in order to be able to 1669 provide backwards compatibility to the old version of that 1670 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1671 again. As for prominent ports this affects neither pciutils 1672 nor xorg-server this time, the hal port needs to be rebuilt 1673 however. 1674 167520071020: 1676 The misnamed kthread_create() and friends have been renamed 1677 to kproc_create() etc. Many of the callers already 1678 used kproc_start().. 1679 I will return kthread_create() and friends in a while 1680 with implementations that actually create threads, not procs. 1681 Renaming corresponds with version 800002. 1682 168320071010: 1684 RELENG_7 branched. 1685 1686COMMON ITEMS: 1687 1688 General Notes 1689 ------------- 1690 Avoid using make -j when upgrading. While generally safe, there are 1691 sometimes problems using -j to upgrade. If your upgrade fails with 1692 -j, please try again without -j. From time to time in the past there 1693 have been problems using -j with buildworld and/or installworld. This 1694 is especially true when upgrading between "distant" versions (eg one 1695 that cross a major release boundary or several minor releases, or when 1696 several months have passed on the -current branch). 1697 1698 Sometimes, obscure build problems are the result of environment 1699 poisoning. This can happen because the make utility reads its 1700 environment when searching for values for global variables. To run 1701 your build attempts in an "environmental clean room", prefix all make 1702 commands with 'env -i '. See the env(1) manual page for more details. 1703 1704 When upgrading from one major version to another it is generally best 1705 to upgrade to the latest code in the currently installed branch first, 1706 then do an upgrade to the new branch. This is the best-tested upgrade 1707 path, and has the highest probability of being successful. Please try 1708 this approach before reporting problems with a major version upgrade. 1709 1710 ZFS notes 1711 --------- 1712 When upgrading the boot ZFS pool to a new version, always follow 1713 these two steps: 1714 1715 1.) recompile and reinstall the ZFS boot loader and boot block 1716 (this is part of "make buildworld" and "make installworld") 1717 1718 2.) update the ZFS boot block on your boot drive 1719 1720 The following example updates the ZFS boot block on the first 1721 partition (freebsd-boot) of a GPT partitioned drive ad0: 1722 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1723 1724 Non-boot pools do not need these updates. 1725 1726 To build a kernel 1727 ----------------- 1728 If you are updating from a prior version of FreeBSD (even one just 1729 a few days old), you should follow this procedure. It is the most 1730 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1731 1732 make kernel-toolchain 1733 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1734 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1735 1736 To test a kernel once 1737 --------------------- 1738 If you just want to boot a kernel once (because you are not sure 1739 if it works, or if you want to boot a known bad kernel to provide 1740 debugging information) run 1741 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1742 nextboot -k testkernel 1743 1744 To just build a kernel when you know that it won't mess you up 1745 -------------------------------------------------------------- 1746 This assumes you are already running a CURRENT system. Replace 1747 ${arch} with the architecture of your machine (e.g. "i386", 1748 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1749 1750 cd src/sys/${arch}/conf 1751 config KERNEL_NAME_HERE 1752 cd ../compile/KERNEL_NAME_HERE 1753 make depend 1754 make 1755 make install 1756 1757 If this fails, go to the "To build a kernel" section. 1758 1759 To rebuild everything and install it on the current system. 1760 ----------------------------------------------------------- 1761 # Note: sometimes if you are running current you gotta do more than 1762 # is listed here if you are upgrading from a really old current. 1763 1764 <make sure you have good level 0 dumps> 1765 make buildworld 1766 make kernel KERNCONF=YOUR_KERNEL_HERE 1767 [1] 1768 <reboot in single user> [3] 1769 mergemaster -p [5] 1770 make installworld 1771 mergemaster -i [4] 1772 make delete-old [6] 1773 <reboot> 1774 1775 1776 To cross-install current onto a separate partition 1777 -------------------------------------------------- 1778 # In this approach we use a separate partition to hold 1779 # current's root, 'usr', and 'var' directories. A partition 1780 # holding "/", "/usr" and "/var" should be about 2GB in 1781 # size. 1782 1783 <make sure you have good level 0 dumps> 1784 <boot into -stable> 1785 make buildworld 1786 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1787 <maybe newfs current's root partition> 1788 <mount current's root partition on directory ${CURRENT_ROOT}> 1789 make installworld DESTDIR=${CURRENT_ROOT} 1790 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1791 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1792 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1793 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1794 <reboot into current> 1795 <do a "native" rebuild/install as described in the previous section> 1796 <maybe install compatibility libraries from ports/misc/compat*> 1797 <reboot> 1798 1799 1800 To upgrade in-place from stable to current 1801 ---------------------------------------------- 1802 <make sure you have good level 0 dumps> 1803 make buildworld [9] 1804 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1805 [1] 1806 <reboot in single user> [3] 1807 mergemaster -p [5] 1808 make installworld 1809 mergemaster -i [4] 1810 make delete-old [6] 1811 <reboot> 1812 1813 Make sure that you've read the UPDATING file to understand the 1814 tweaks to various things you need. At this point in the life 1815 cycle of current, things change often and you are on your own 1816 to cope. The defaults can also change, so please read ALL of 1817 the UPDATING entries. 1818 1819 Also, if you are tracking -current, you must be subscribed to 1820 freebsd-current@freebsd.org. Make sure that before you update 1821 your sources that you have read and understood all the recent 1822 messages there. If in doubt, please track -stable which has 1823 much fewer pitfalls. 1824 1825 [1] If you have third party modules, such as vmware, you 1826 should disable them at this point so they don't crash your 1827 system on reboot. 1828 1829 [3] From the bootblocks, boot -s, and then do 1830 fsck -p 1831 mount -u / 1832 mount -a 1833 cd src 1834 adjkerntz -i # if CMOS is wall time 1835 Also, when doing a major release upgrade, it is required that 1836 you boot into single user mode to do the installworld. 1837 1838 [4] Note: This step is non-optional. Failure to do this step 1839 can result in a significant reduction in the functionality of the 1840 system. Attempting to do it by hand is not recommended and those 1841 that pursue this avenue should read this file carefully, as well 1842 as the archives of freebsd-current and freebsd-hackers mailing lists 1843 for potential gotchas. The -U option is also useful to consider. 1844 See mergemaster(8) for more information. 1845 1846 [5] Usually this step is a noop. However, from time to time 1847 you may need to do this if you get unknown user in the following 1848 step. It never hurts to do it all the time. You may need to 1849 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1850 install) after the buildworld before this step if you last updated 1851 from [78]-stable or 9-stable before 20130430. 1852 1853 [6] This only deletes old files and directories. Old libraries 1854 can be deleted by "make delete-old-libs", but you have to make 1855 sure that no program is using those libraries anymore. 1856 1857 [8] In order to have a kernel that can run the 4.x binaries needed to 1858 do an installworld, you must include the COMPAT_FREEBSD4 option in 1859 your kernel. Failure to do so may leave you with a system that is 1860 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1861 required to run the 5.x binaries on more recent kernels. And so on 1862 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1863 1864 Make sure that you merge any new devices from GENERIC since the 1865 last time you updated your kernel config file. 1866 1867 [9] When checking out sources, you must include the -P flag to have 1868 cvs prune empty directories. 1869 1870 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1871 "?=" instead of the "=" assignment operator, so that buildworld can 1872 override the CPUTYPE if it needs to. 1873 1874 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1875 not on the command line, or in /etc/make.conf. buildworld will 1876 warn if it is improperly defined. 1877FORMAT: 1878 1879This file contains a list, in reverse chronological order, of major 1880breakages in tracking -current. It is not guaranteed to be a complete 1881list of such breakages, and only contains entries since October 10, 2007. 1882If you need to see UPDATING entries from before that date, you will need 1883to fetch an UPDATING file from an older FreeBSD release. 1884 1885Copyright information: 1886 1887Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1888 1889Redistribution, publication, translation and use, with or without 1890modification, in full or in part, in any form or format of this 1891document are permitted without further permission from the author. 1892 1893THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1894IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1895WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1896DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1897INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1898(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1899SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1900HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1901STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1902IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1903POSSIBILITY OF SUCH DAMAGE. 1904 1905Contact Warner Losh if you have any questions about your use of 1906this document. 1907 1908$FreeBSD: releng/9.3/UPDATING 293896 2016-01-14 09:11:26Z glebius $ 1909