UPDATING revision 300088
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 1420160517 p42 FreeBSD-SA-16:18.atkbd 15 16 Fix buffer overflow in keyboard driver. [SA-16:18] 17 1820160504 p41 FreeBSD-SA-16:17.openssl 19 FreeBSD-EN-16:08.zfs 20 21 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 22 23 Fix memory leak in ZFS. [EN-16:08] 24 2520160429 p40 FreeBSD-SA-16:16.ntp 26 27 Fix multiple vulnerabilities of ntp. 28 2920160316 p39 FreeBSD-SA-16:14.openssh-xauth 30 FreeBSD-SA-16:15.sysarch 31 32 Fix OpenSSH xauth(1) command injection. [SA-16:14] 33 Fix incorrect argument validation in sysarch(2). [SA-16:15] 34 3520160310 p38 FreeBSD-SA-16:13.bind 36 FreeBSD-SA-16:12.openssl [revised] 37 38 Fix multiple vulnerabilities of BIND. [SA-16:13] 39 40 Fix a regression with OpenSSL patch. [SA-16:12] 41 4220160303 p37 FreeBSD-SA-16:12.openssl 43 44 Fix multiple vulnerabilities of OpenSSL. 45 4620160130 p36 FreeBSD-SA-16:11.openssl 47 48 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 49 5020160127 p35 FreeBSD-SA-16:08.bind 51 FreeBSD-SA-16:09.ntp 52 FreeBSD-SA-16:10.linux 53 54 Fix BIND remote denial of service vulnerability. [SA-16:08] 55 56 Fix multiple vulnerabilities of ntp. [SA-16:09] 57 58 Fix Linux compatibility layer issetugid(2) system call 59 vulnerability. [SA-16:10] 60 6120160114 p34 FreeBSD-SA-16:07.openssh 62 63 Fix OpenSSH client information leak. [SA-16:07] 64 6520160114 p33 FreeBSD-EN-16:02.pf 66 FreeBSD-EN-16:03.yplib 67 FreeBSD-SA-16:01.sctp 68 FreeBSD-SA-16:02.ntp 69 FreeBSD-SA-16:03.linux 70 FreeBSD-SA-16:04.linux 71 FreeBSD-SA-16:05.tcp 72 FreeBSD-SA-16:06.bsnmpd 73 74 Fix pf(4) generating bad TCP checksums. [EN-16:02] 75 Fix infinite loop in YP/NIS client library. [EN-16:03] 76 Fix remote denial of service in SCTP. [SA-16:01] 77 Update NTP to 4.2.8p5. [SA-16:02] 78 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 79 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 80 Fix crash in TCP MD5 signatures. [SA-16:05] 81 Fix insecure default permissions for snmpd.config. [SA-16:06] 82 8320151216 p32 FreeBSD-SA-15:27.bind 84 Fix BIND remote denial of service vulnerability. [SA-15:27] 85 8620151205 p31 FreeBSD-SA-15:26.openssl 87 88 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 89 9020151104 p30 FreeBSD-SA-15:25.ntp [revised] 91 FreeBSD-EN-15:19.kqueue 92 FreeBSD-EN-15:20.vm 93 94 Fix regression of ntpq(8) utility exiting due to trap 6 in 95 9.3-RELEASE-p29. [SA-15:25] 96 97 Fix regression in ntpd(8) lacking support for RAWDCF reference 98 clock in 9.3-RELEASE-p29. [SA-15:25] 99 100 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 101 102 Fix applications exiting due to segmentation violation on a correct 103 memory address. [EN-15:20] 104 10520151026: p29 FreeBSD-SA-15:25.ntp 106 107 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 108 109 The configuration file syntax has been changed, thus mergemaster 110 run is recommended. Now the "kod" parameter requires "limited" 111 parameter. If the ntp.conf is not updated, the ntpd will run 112 successfully, but with KoD disabled. 113 11420151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 115 Revised patch to address a regression that prevents NIS from working. 116 11720150929: p27 FreeBSD-SA-15:24.rpcbind 118 119 Fix rpcbind(8) remote denial of service. [SA-15:24] 120 12120150916: p26 FreeBSD-EN-15:18.pkg 122 123 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 124 12520150902: p25 FreeBSD-SA-15:23.bind 126 127 Fix BIND remote denial of service vulnerability. [SA-15:23] 128 12920150825: p24 FreeBSD-SA-15:21.amd64 130 FreeBSD-SA-15:22.openssh 131 FreeBSD-EN-15:15.pkg 132 133 Fix local privilege escalation in IRET handler. [SA-15:21] 134 135 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 136 137 Fix insufficient check of unsupported pkg(7) signature methods. 138 [EN-15:15] 139 14020150818: p23 FreeBSD-SA-15:20.expat 141 142 Fix multiple integer overflows in expat (libbsdxml) XML parser. 143 [SA-15:20] 144 14520150805: p22 FreeBSD-SA-15:19.routed 146 147 Fix routed remote denial of service vulnerability. 148 14920150728: p21 FreeBSD-SA-15:15.tcp 150 FreeBSD-SA-15:16.openssh 151 FreeBSD-SA-15:17.bind 152 153 Fix resource exhaustion in TCP reassembly. [SA-15:15] 154 155 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 156 157 Fix BIND remote denial of service vulnerability. [SA-15:17] 158 15920150721: p20 FreeBSD-SA-15:13.tcp 160 161 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 162 [SA-15:13] 163 16420150707: p19 FreeBSD-SA-15:11.bind 165 Fix BIND resolver remote denial of service when validating. 166 16720150630: p18 FreeBSD-EN-15:08.sendmail [revised] 168 FreeBSD-EN-15:09.xlocale 169 170 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 171 172 Fix inconsistency between locale and rune locale states. 173 [EN-15:09] 174 17520150618: p17 FreeBSD-EN-15:08.sendmail 176 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 177 17820150612: p16 FreeBSD-SA-15:10.openssl 179 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 180 18120150609: p15 FreeBSD-EN-15:06.file 182 183 Updated base system file(1) to 5.22 to address multiple denial 184 of service issues. 185 18620150513: p14 FreeBSD-EN-15:04.freebsd-update 187 188 Fix bug with freebsd-update(8) that does not ensure the previous 189 upgrade was completed. [EN-15:04] 190 19120150407: p13 FreeBSD-SA-15:04.igmp [revised] 192 FreeBSD-SA-15:07.ntp 193 FreeBSD-SA-15:09.ipv6 194 195 Improved patch for SA-15:04.igmp. 196 197 Fix multiple vulnerabilities of ntp. [SA-15:07] 198 199 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 200 20120150320: p12 202 Fix patch for SA-15:06.openssl. 203 20420150319: p11 FreeBSD-SA-15:06.openssl 205 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 206 20720150225: p10 FreeBSD-SA-15:04.igmp 208 FreeBSD-SA-15:05.bind 209 FreeBSD-EN-15:01.vt 210 FreeBSD-EN-15:02.openssl 211 FreeBSD-EN-15:03.freebsd-update 212 213 Fix integer overflow in IGMP protocol. [SA-15:04] 214 215 Fix BIND remote denial of service vulnerability. [SA-15:05] 216 217 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 218 219 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 220 221 Fix freebsd-update libraries update ordering issue. [EN-15:03] 222 22320150127: p9 FreeBSD-SA-15:02.kmem 224 FreeBSD-SA-15:03.sctp 225 226 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 227 vulnerability. [SA-15:02] 228 229 Fix SCTP stream reset vulnerability. [SA-15:03] 230 23120150114: p8 FreeBSD-SA-15:01.openssl 232 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 233 23420141223: p7 FreeBSD-SA-14:31.ntp 235 FreeBSD-EN-14:13.freebsd-update 236 237 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 238 Fix directory deletion issue in freebsd-update. [EN-14:13] 239 24020141210: p6 FreeBSD-SA-14:28.file 241 FreeBSD-SA-14:29.bind 242 243 Fix multiple vulnerabilities in file(1) and libmagic(3). 244 [SA-14:28] 245 246 Fix BIND remote denial of service vulnerability. [SA-14:29] 247 24820141104: p5 FreeBSD-SA-14:25.setlogin 249 FreeBSD-SA-14:26.ftp 250 FreeBSD-EN-14:12.zfs 251 252 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 253 [SA-14:25] 254 255 Fix remote command execution in ftp(1). [SA-14:26] 256 257 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 258 25920141022: p4 FreeBSD-EN-14:10.tzdata 260 FreeBSD-EN-14:11.crypt 261 262 Time zone data file update. [EN-14:10] 263 264 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 265 26620141021: p3 FreeBSD-SA-14:20.rtsold 267 FreeBSD-SA-14:21.routed 268 FreeBSD-SA-14:22.namei 269 FreeBSD-SA-14:23.openssl 270 271 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 272 273 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 274 275 Fix memory leak in sandboxed namei lookup. [SA-14:22] 276 277 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 278 27920140916: p2 FreeBSD-SA-14:19.tcp 280 Fix Denial of Service in TCP packet processing. [SA-14:19] 281 28220140909: p1 FreeBSD-SA-14:18.openssl 283 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 284 28520140716: 286 9.3-RELEASE. 287 28820140608: 289 On i386 and amd64 systems, the onifconsole flag is now set by default 290 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 291 as a login TTY if it is set in the bootloader as an active kernel 292 console. No changes in behavior should result otherwise. To revert to 293 the previous behavior, set ttyu0 to "off" in /etc/ttys. 294 29520140512: 296 Clang and llvm have been upgraded to 3.4.1 release. 297 29820140321: 299 Clang and llvm have been upgraded to 3.4 release. 300 30120140216: 302 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 303 been deprecated and will not be part of FreeBSD 11.0 and later 304 releases. If you use this driver, please consider switching to 305 the nfe(4) driver instead. 306 30720131216: 308 The behavior of gss_pseudo_random() for the krb5 mechanism 309 has changed, for applications requesting a longer random string 310 than produced by the underlying enctype's pseudo-random() function. 311 In particular, the random string produced from a session key of 312 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 313 be different at the 17th octet and later, after this change. 314 The counter used in the PRF+ construction is now encoded as a 315 big-endian integer in accordance with RFC 4402. 316 __FreeBSD_version is bumped to 902505. 317 31820130930: 319 9.2-RELEASE. 320 32120130823: 322 Behavior of devfs rules path matching has been changed. 323 Pattern is now always matched against fully qualified devfs 324 path and slash characters must be explicitly matched by 325 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 326 subdirectories must be reviewed. 327 32820130705: 329 hastctl(8)'s `status' command output changed to terse one-liner format. 330 Scripts using this should switch to `list' command or be rewritten. 331 33220130618: 333 Fix a bug that allowed a tracing process (e.g. gdb) to write 334 to a memory-mapped file in the traced process's address space 335 even if neither the traced process nor the tracing process had 336 write access to that file. 337 33820130605: 339 Added ZFS TRIM support which is enabled by default. To disable 340 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 341 342 Creating new ZFS pools and adding new devices to existing pools 343 first performs a full device level TRIM which can take a significant 344 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 345 to disable this behaviour. 346 347 ZFS TRIM requires the underlying device support BIO_DELETE which 348 is currently provided by methods such as ATA TRIM and SCSI UNMAP 349 via CAM, which are typically supported by SSD's. 350 351 Stats for ZFS TRIM can be monitored by looking at the sysctl's 352 under kstat.zfs.misc.zio_trim. 353 35420130524: 355 `list' command has been added to hastctl(8). For now, it is full 356 equivalent of `status' command. 357 WARNING: in the near future the output of hastctl's status command 358 will change to more terse format. If you use `hastctl status' 359 for parsing in your scripts, switch to `hastctl list'. 360 36120130430: 362 The mergemaster command now uses the default MAKEOBJDIRPREFIX 363 rather than creating it's own in the temporary directory in 364 order allow access to bootstrapped versions of tools such as 365 install and mtree. When upgrading from version of FreeBSD where 366 the install command does not support -l, you will need to 367 install a new mergemaster command if mergemaster -p is required. 368 This can be accomplished with the command (cd src/usr.sbin/mergemaster 369 && make install). 370 371 Due to the use of the new -l option to install(1) during build 372 and install, you must take care not to directly set the INSTALL 373 make variable in your /etc/make.conf, /etc/src.conf, or on the 374 command line. If you wish to use the -C flag for all installs 375 you may be able to add INSTALL+=-C to /etc/make.conf or 376 /etc/src.conf. 377 37820130429: 379 Fix a bug that allows NFS clients to issue READDIR on files. 380 38120130315: 382 The install(1) option -M has changed meaning and now takes an 383 argument that is a file or path to append logs to. In the 384 unlikely event that -M was the last option on the command line 385 and the command line contained at least two files and a target 386 directory the first file will have logs appended to it. The -M 387 option served little practical purpose in the last decade so it's 388 used expected to be extremely rare. 389 39020130225: 391 A new compression method (lz4) has been merged to. Please refer to 392 zpool-features(7) for more information. 393 394 Please refer to the "ZFS notes" section of this file for information 395 on upgrading boot ZFS pools. 396 39720121224: 398 The VFS KBI was changed with the merge of several nullfs 399 optimizations and fixes. All filesystem modules must be 400 recompiled. 401 40220121218: 403 With the addition of auditdistd(8), a new auditdistd user is now 404 depended on during installworld. "mergemaster -p" can be used to add 405 the user prior to installworld, as documented in the handbook. 406 40720121205: 408 9.1-RELEASE. 409 41020121129: 411 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 412 Starting with this version the old system of ZFS pool versioning 413 is superseded by "feature flags". This concept enables forward 414 compatibility against certain future changes in functionality of ZFS 415 pools. The first two read-only compatible "feature flags" for ZFS 416 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 417 For more information read the new zpool-features(7) manual page. 418 Please refer to the "ZFS notes" section of this file for information 419 on upgrading boot ZFS pools. 420 42120121114: 422 The commit introducing bsd.compiler.mk breaks the traditional 423 building of kernels before this point. Add -m ${SRC}/share/mk 424 (for the right value of SRC) to your command lines to work 425 around; update your useland to a point after this; or use the 426 buildkernel/installkernel top-level targets. See also 20120829. 427 42820121102: 429 The IPFIREWALL_FORWARD kernel option has been removed. Its 430 functionality now turned on by default. 431 43220120913: 433 The random(4) support for the VIA hardware random number 434 generator (`PADLOCK') is no longer enabled unconditionally. 435 Add the PADLOCK_RNG option in the custom kernel config if 436 needed. The GENERIC kernels on i386 and amd64 do include the 437 option, so the change only affects the custom kernel 438 configurations. 439 44020120829: 441 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 442 the traditional method, you must update your system with an installworld 443 before the kernel will build. The documented make buildkernel/installkernel 444 interfaces (coupled with fresh make kernel-toolchain) continue to work. 445 44620120727: 447 The sparc64 ZFS loader has been changed to no longer try to auto- 448 detect ZFS providers based on diskN aliases but now requires these 449 to be explicitly listed in the OFW boot-device environment variable. 450 45120120422: 452 Now unix domain sockets behave "as expected" on nullfs(5). Previously 453 nullfs(5) did not pass through all behaviours to the underlying layer, 454 as a result if we bound to a socket on the lower layer we could connect 455 only to the lower path; if we bound to the upper layer we could connect 456 only to the upper path. The new behavior is one can connect to both the 457 lower and the upper paths regardless what layer path one binds to. 458 45920120109: 460 The acpi_wmi(4) status device /dev/wmistat has been renamed to 461 /dev/wmistat0. 462 46320120106: 464 A new VOP_ADVISE() was added to support posix_fadvise(2). All 465 filesystem modules must be recompiled. 466 46720120106: 468 The interface of the VOP_VPTOCNP(9) changed, now the returned 469 vnode shall be referenced, previously it was required to be 470 only held. All in-tree filesystems are converted. 471 47220120106: 473 9.0-RELEASE. 474 47520111101: 476 The broken amd(4) driver has been replaced with esp(4) in the amd64, 477 i386 and pc98 GENERIC kernel configuration files. 478 47920110913: 480 This commit modifies vfs_register() so that it uses a hash 481 calculation to set vfc_typenum, which is enabled by default. 482 The first time a system is booted after this change, the 483 vfc_typenum values will change for all file systems. The 484 main effect of this is a change to the NFS server file handles 485 for file systems that use vfc_typenum in their fsid, such as ZFS. 486 It will, however, prevent vfc_typenum from changing when file 487 systems are loaded in a different order for subsequent reboots. 488 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 489 until you are ready to remount all NFS clients after a reboot. 490 49120110828: 492 Bump the shared library version numbers for libraries that 493 do not use symbol versioning, have changed the ABI compared 494 to stable/8 and which shared library version was not bumped. 495 Done as part of 9.0-RELEASE cycle. 496 49720110815: 498 During the merge of Capsicum features, the fget(9) KPI was modified. 499 This may require the rebuilding of out-of-tree device drivers -- 500 issues have been reported specifically with the nVidia device driver. 501 __FreeBSD_version is bumped to 900041. 502 503 Also, there is a period between 20110811 and 20110814 where the 504 special devices /dev/{stdin,stdout,stderr} did not work correctly. 505 Building world from a kernel during that window may not work. 506 50720110628: 508 The packet filter (pf) code has been updated to OpenBSD 4.5. 509 You need to update userland tools to be in sync with kernel. 510 This update breaks backward compatibility with earlier pfsync(4) 511 versions. Care must be taken when updating redundant firewall setups. 512 51320110608: 514 The following sysctls and tunables are retired on x86 platforms: 515 machdep.hlt_cpus 516 machdep.hlt_logical_cpus 517 The following sysctl is retired: 518 machdep.hyperthreading_allowed 519 The sysctls were supposed to provide a way to dynamically offline and 520 online selected CPUs on x86 platforms, but the implementation has not 521 been reliable especially with SCHED_ULE scheduler. 522 machdep.hyperthreading_allowed tunable is still available to ignore 523 hyperthreading CPUs at OS level. 524 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 525 where X is an APIC ID of a CPU. Be advised, though, that disabling 526 CPUs in non-uniform fashion will result in non-uniform topology and 527 may lead to sub-optimal system performance with SCHED_ULE, which is 528 a default scheduler. 529 53020110607: 531 cpumask_t type is retired and cpuset_t is used in order to describe 532 a mask of CPUs. 533 53420110531: 535 Changes to ifconfig(8) for dynamic address family detection mandate 536 that you are running a kernel of 20110525 or later. Make sure to 537 follow the update procedure to boot a new kernel before installing 538 world. 539 54020110513: 541 Support for sun4v architecture is officially dropped 542 54320110503: 544 Several KPI breaking changes have been committed to the mii(4) layer, 545 the PHY drivers and consequently some Ethernet drivers using mii(4). 546 This means that miibus.ko and the modules of the affected Ethernet 547 drivers need to be recompiled. 548 549 Note to kernel developers: Given that the OUI bit reversion problem 550 was fixed as part of these changes all mii(4) commits related to OUIs, 551 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 552 handling, no longer can be merged verbatim to stable/8 and previous 553 branches. 554 55520110430: 556 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 557 into their kernel configurations along with 'device pci'. 558 55920110427: 560 The default NFS client is now the new NFS client, so fstype "newnfs" 561 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 562 Although mounts via fstype "nfs" will usually work without userland 563 changes, it is recommended that the mount(8) and mount_nfs(8) 564 commands be rebuilt from sources and that a link to mount_nfs called 565 mount_oldnfs be created. The new client is compiled into the 566 kernel with "options NFSCL" and this is needed for diskless root 567 file systems. The GENERIC kernel configs have been changed to use 568 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 569 To use the regular/old client, you can "mount -t oldnfs ...". For 570 a diskless root file system, you must also include a line like: 571 572 vfs.root.mountfrom="oldnfs:" 573 574 in the boot/loader.conf on the root fs on the NFS server to make 575 a diskless root fs use the old client. 576 57720110424: 578 The GENERIC kernels for all architectures now default to the new 579 CAM-based ATA stack. It means that all legacy ATA drivers were 580 removed and replaced by respective CAM drivers. If you are using 581 ATA device names in /etc/fstab or other places, make sure to update 582 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 583 where 'Y's are the sequential numbers starting from zero for each type 584 in order of detection, unless configured otherwise with tunables, 585 see cam(4)). There will be symbolic links created in /dev/ to map 586 old adX devices to the respective adaY. They should provide basic 587 compatibility for file systems mounting in most cases, but they do 588 not support old user-level APIs and do not have respective providers 589 in GEOM. Consider using updated management tools with new device names. 590 591 It is possible to load devices ahci, ata, siis and mvs as modules, 592 but option ATA_CAM should remain in kernel configuration to make ata 593 module work as CAM driver supporting legacy ATA controllers. Device ata 594 still can be used in modular fashion (atacore + ...). Modules atadisk 595 and atapi* are not used and won't affect operation in ATA_CAM mode. 596 Note that to use CAM-based ATA kernel should include CAM devices 597 scbus, pass, da (or explicitly ada), cd and optionally others. All of 598 them are parts of the cam module. 599 600 ataraid(4) functionality is now supported by the RAID GEOM class. 601 To use it you can load geom_raid kernel module and use graid(8) tool 602 for management. Instead of /dev/arX device names, use /dev/raid/rX. 603 604 No kernel config options or code have been removed, so if a problem 605 arises, please report it and optionally revert to the old ATA stack. 606 In order to do it you can remove from the kernel config: 607 options ATA_CAM 608 device ahci 609 device mvs 610 device siis 611 , and instead add back: 612 device atadisk # ATA disk drives 613 device ataraid # ATA RAID drives 614 device atapicd # ATAPI CDROM drives 615 device atapifd # ATAPI floppy drives 616 device atapist # ATAPI tape drives 617 61820110423: 619 The default NFS server has been changed to the new server, which 620 was referred to as the experimental server. If you need to switch 621 back to the old NFS server, you must now put the "-o" option on 622 both the mountd and nfsd commands. This can be done using the 623 mountd_flags and nfs_server_flags rc.conf variables until an 624 update to the rc scripts is committed, which is coming soon. 625 62620110418: 627 The GNU Objective-C runtime library (libobjc), and other Objective-C 628 related components have been removed from the base system. If you 629 require an Objective-C library, please use one of the available ports. 630 63120110331: 632 ath(4) has been split into bus- and device- modules. if_ath contains 633 the HAL, the TX rate control and the network device code. if_ath_pci 634 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 635 contains the AHB glue. Users need to load both if_ath_pci and if_ath 636 in order to use ath on everything else. 637 638 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 639 need to load if_ath and if_ath_pci for ath(4) operation. 640 64120110314: 642 As part of the replacement of sysinstall, the process of building 643 release media has changed significantly. For details, please re-read 644 release(7), which has been updated to reflect the new build process. 645 64620110218: 647 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 648 is the last available version under GPLv2. It brings a number of new 649 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 650 4.1 and SSE 4.2), better support for powerpc64, a number of new 651 directives, and lots of other small improvements. See the ChangeLog 652 file in contrib/binutils for the full details. 653 65420110218: 655 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 656 compliant, and will now use half of hash for authentication. 657 This will break interoperability with all stacks (including all 658 actual FreeBSD versions) who implement 659 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 660 authentication). 661 The only workaround with such peers is to use another HMAC 662 algorithm for IPsec ("phase 2") authentication. 663 66420110207: 665 Remove the uio_yield prototype and symbol. This function has 666 been misnamed since it was introduced and should not be 667 globally exposed with this name. The equivalent functionality 668 is now available using kern_yield(curthread->td_user_pri). 669 The function remains undocumented. 670 67120110112: 672 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 673 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 674 for scalar sysctls is defined but disabled. Code that needs 675 UQUAD to pass the type checking that must compile on older 676 systems where the define is not present can check against 677 __FreeBSD_version >= 900030. 678 679 The system dialog(1) has been replaced with a new version previously 680 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 681 with the previous version, but the libdialog associated with it has 682 a largely incompatible API. As such, the original version of libdialog 683 will be kept temporarily as libodialog, until its base system consumers 684 are replaced or updated. Bump __FreeBSD_version to 900030. 685 68620110103: 687 If you are trying to run make universe on a -stable system, and you get 688 the following warning: 689 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 690 unknown. config(8) likely too old." 691 or something similar to it, then you must upgrade your -stable system 692 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 693 stable/8) or build the config from the latest stable/8 branch and 694 install it on your system. 695 696 Prior to this date, building a current universe on 8-stable system from 697 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 698 error in the first kernel build phase. A new config on those old 699 systems will fix that problem for older versions of -current. 700 70120101228: 702 The TCP stack has been modified to allow Khelp modules to interact with 703 it via helper hook points and store per-connection data in the TCP 704 control block. Bump __FreeBSD_version to 900029. User space tools that 705 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 706 be recompiled. 707 70820101114: 709 Generic IEEE 802.3 annex 31B full duplex flow control support has been 710 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 711 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 712 to take advantage of it instead of using custom implementations. This 713 means that these drivers now no longer unconditionally advertise 714 support for flow control but only do so if flow control is a selected 715 media option. This was implemented in the generic support that way in 716 order to allow flow control to be switched on and off via ifconfig(8) 717 with the PHY specific default to typically off in order to protect 718 from unwanted effects. Consequently, if you used flow control with 719 one of the above mentioned drivers you now need to explicitly enable 720 it, for example via: 721 ifconfig bge0 media auto mediaopt flowcontrol 722 723 Along with the above mentioned changes generic support for setting 724 1000baseT master mode also has been added and brgphy(4), ciphy(4), 725 e1000phy(4) as well as ip1000phy(4) have been converted to take 726 advantage of it. This means that these drivers now no longer take the 727 link0 parameter for selecting master mode but the master media option 728 has to be used instead, for example like in the following: 729 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 730 731 Selection of master mode now is also available with all other PHY 732 drivers supporting 1000baseT. 733 73420101111: 735 The TCP stack has received a significant update to add support for 736 modularised congestion control and generally improve the clarity of 737 congestion control decisions. Bump __FreeBSD_version to 900025. User 738 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 739 sockstat) need to be recompiled. 740 74120101002: 742 The man(1) utility has been replaced by a new version that no longer 743 uses /etc/manpath.config. Please consult man.conf(5) for how to 744 migrate local entries to the new format. 745 74620100928: 747 The copyright strings printed by login(1) and sshd(8) at the time of a 748 new connection have been removed to follow other operating systems and 749 upstream sshd. 750 75120100915: 752 A workaround for a fixed ld bug has been removed in kernel code, 753 so make sure that your system ld is built from sources after 754 revision 210245 from 2010-07-19 (r211583 if building head kernel 755 on stable/8, r211584 for stable/7; both from 2010-08-21). 756 A symptom of incorrect ld version is different addresses for 757 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 758 75920100913: 760 The $ipv6_prefer variable in rc.conf(5) has been split into 761 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 762 763 The $ip6addrctl_policy is a variable to choose a pre-defined 764 address selection policy set by ip6addrctl(8). A value 765 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 766 default is "AUTO". 767 768 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 769 flag (see an entry of 20090926) is set on an interface with no 770 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 771 security reason. If you want IPv6 link-local address on all 772 interfaces by default, set this to "YES". 773 774 The old ipv6_prefer="YES" is equivalent to 775 ipv6_activate_all_interfaces="YES" and 776 ip6addrctl_policy="ipv6_prefer". 777 77820100913: 779 DTrace has grown support for userland tracing. Due to this, DTrace is 780 now i386 and amd64 only. 781 dtruss(1) is now installed by default on those systems and a new 782 kernel module is needed for userland tracing: fasttrap. 783 No changes to your kernel config file are necessary to enable 784 userland tracing, but you might consider adding 'STRIP=' and 785 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 786 to have informative userland stack traces in DTrace (ustack). 787 78820100725: 789 The acpi_aiboost(4) driver has been removed in favor of the new 790 aibs(4) driver. You should update your kernel configuration file. 791 79220100722: 793 BSD grep has been imported to the base system and it is built by 794 default. It is completely BSD licensed, highly GNU-compatible, uses 795 less memory than its GNU counterpart and has a small codebase. 796 However, it is slower than its GNU counterpart, which is mostly 797 noticeable for larger searches, for smaller ones it is measurable 798 but not significant. The reason is complex, the most important factor 799 is that we lack a modern and efficient regex library and GNU 800 overcomes this by optimizing the searches internally. Future work 801 on improving the regex performance is planned, for the meantime, 802 users that need better performance, can build GNU grep instead by 803 setting the WITH_GNU_GREP knob. 804 80520100713: 806 Due to the import of powerpc64 support, all existing powerpc kernel 807 configuration files must be updated with a machine directive like this: 808 machine powerpc powerpc 809 810 In addition, an updated config(8) is required to build powerpc kernels 811 after this change. 812 81320100713: 814 A new version of ZFS (version 15) has been merged to -HEAD. 815 This version uses a python library for the following subcommands: 816 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 817 For full functionality of these commands the following port must 818 be installed: sysutils/py-zfs 819 82020100429: 821 'vm_page's are now hashed by physical address to an array of mutexes. 822 Currently this is only used to serialize access to hold_count. Over 823 time the page queue mutex will be peeled away. This changes the size 824 of pmap on every architecture. And requires all callers of vm_page_hold 825 and vm_page_unhold to be updated. 826 82720100402: 828 WITH_CTF can now be specified in src.conf (not recommended, there 829 are some problems with static executables), make.conf (would also 830 affect ports which do not use GNU make and do not override the 831 compile targets) or in the kernel config (via "makeoptions 832 WITH_CTF=yes"). 833 When WITH_CTF was specified there before this was silently ignored, 834 so make sure that WITH_CTF is not used in places which could lead 835 to unwanted behavior. 836 83720100311: 838 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 839 to allow 32-bit compatibility on non-x86 platforms. All kernel 840 configurations on amd64 and ia64 platforms using these options must 841 be modified accordingly. 842 84320100113: 844 The utmp user accounting database has been replaced with utmpx, 845 the user accounting interface standardized by POSIX. 846 Unfortunately the semantics of utmp and utmpx don't match, 847 making it practically impossible to support both interfaces. 848 The user accounting database is used by tools like finger(1), 849 last(1), talk(1), w(1) and ac(8). 850 851 All applications in the base system use utmpx. This means only 852 local binaries (e.g. from the ports tree) may still use these 853 utmp database files. These applications must be rebuilt to make 854 use of utmpx. 855 856 After the system has been upgraded, it is safe to remove the old 857 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 858 assuming their contents is of no importance anymore. Old wtmp 859 databases can only be used by last(1) and ac(8) after they have 860 been converted to the new format using wtmpcvt(1). 861 86220100108: 863 Introduce the kernel thread "deadlock resolver" (which can be enabled 864 via the DEADLKRES option, see NOTES for more details) and the 865 sleepq_type() function for sleepqueues. 866 86720091202: 868 The rc.firewall and rc.firewall6 were unified, and 869 rc.firewall6 and rc.d/ip6fw were removed. 870 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 871 variables are obsoleted. Instead, the following new rc 872 variables are added to rc.d/ipfw: 873 874 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 875 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 876 firewall_simple_onet_ipv6, firewall_trusted_ipv6 877 878 The meanings correspond to the relevant IPv4 variables. 879 88020091125: 881 8.0-RELEASE. 882 88320091113: 884 The default terminal emulation for syscons(4) has been changed 885 from cons25 to xterm on all platforms except pc98. This means 886 that the /etc/ttys file needs to be updated to ensure correct 887 operation of applications on the console. 888 889 The terminal emulation style can be toggled per window by using 890 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 891 options can be used to change the compile-time default back to 892 cons25. 893 894 To prevent graphical artifacts, make sure the TERM environment 895 variable is set to match the terminal emulation that is being 896 performed by syscons(4). 897 89820091109: 899 The layout of the structure ieee80211req_scan_result has changed. 900 Applications that require wireless scan results (e.g. ifconfig(8)) 901 from net80211 need to be recompiled. 902 903 Applications such as wpa_supplicant(8) may require a full world 904 build without using NO_CLEAN in order to get synchronized with the 905 new structure. 906 90720091025: 908 The iwn(4) driver has been updated to support the 5000 and 5150 series. 909 There's one kernel module for each firmware. Adding "device iwnfw" 910 to the kernel configuration file means including all three firmware 911 images inside the kernel. If you want to include just the one for 912 your wireless card, use the devices iwn4965fw, iwn5000fw or 913 iwn5150fw. 914 91520090926: 916 The rc.d/network_ipv6, IPv6 configuration script has been integrated 917 into rc.d/netif. The changes are the following: 918 919 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 920 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 921 Note that both variables need the "inet6" keyword at the head. 922 923 Do not set $ipv6_network_interfaces manually if you do not 924 understand what you are doing. It is not needed in most cases. 925 926 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 927 they are obsolete. 928 929 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 930 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 931 932 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 933 all configured interfaces have "inet6 accept_rtadv" in the 934 $ifconfig_IF_ipv6. These are for backward compatibility. 935 936 3. A new variable $ipv6_prefer has been added. If NO, IPv6 937 functionality of interfaces with no corresponding 938 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 939 and the default address selection policy of ip6addrctl(8) 940 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 941 Note that if you want to configure IPv6 functionality on the 942 disabled interfaces after boot, first you need to clear the flag by 943 using ifconfig(8) like: 944 945 ifconfig em0 inet6 -ifdisabled 946 947 If YES, the default address selection policy is set as 948 IPv6-preferred. 949 950 The default value of $ipv6_prefer is NO. 951 952 4. If your system need to receive Router Advertisement messages, 953 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 954 scripts automatically invoke rtsol(8) when the interface becomes 955 UP. The Router Advertisement messages are used for SLAAC 956 (State-Less Address AutoConfiguration). 957 95820090922: 959 802.11s D3.03 support was committed. This is incompatible with the 960 previous code, which was based on D3.0. 961 96220090912: 963 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 964 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 965 control whether accepting Router Advertisement messages or not. 966 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 967 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 968 The ifconfig(8) utility now supports these flags. 969 97020090910: 971 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 972 mount(8) and -a option for df(1) to see them. 973 97420090825: 975 The old tunable hw.bus.devctl_disable has been superseded by 976 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 977 replaced by hw.bus.devctl_queue=0. The default for this new tunable 978 is 1000. 979 98020090813: 981 Remove the option STOP_NMI. The default action is now to use NMI only 982 for KDB via the newly introduced function stop_cpus_hard() and 983 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 984 98520090803: 986 The stable/8 branch created in subversion. This corresponds to the 987 RELENG_8 branch in CVS. 988 98920090719: 990 Bump the shared library version numbers for all libraries that do not 991 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 992 __FreeBSD_version to 800105. 993 99420090714: 995 Due to changes in the implementation of virtual network stack support, 996 all network-related kernel modules must be recompiled. As this change 997 breaks the ABI, bump __FreeBSD_version to 800104. 998 99920090713: 1000 The TOE interface to the TCP syncache has been modified to remove 1001 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1002 The cxgb driver is the only TOE consumer affected by this change, and 1003 needs to be recompiled along with the kernel. As this change breaks 1004 the ABI, bump __FreeBSD_version to 800103. 1005 100620090712: 1007 Padding has been added to struct tcpcb, sackhint and tcpstat in 1008 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1009 maintaining the ABI. However, this change breaks the ABI, so bump 1010 __FreeBSD_version to 800102. User space tools that rely on the size of 1011 any of these structs (e.g. sockstat) need to be recompiled. 1012 101320090630: 1014 The NFS_LEGACYRPC option has been removed along with the old kernel 1015 RPC implementation that this option selected. Kernel configurations 1016 may need to be adjusted. 1017 101820090629: 1019 The network interface device nodes at /dev/net/<interface> have been 1020 removed. All ioctl operations can be performed the normal way using 1021 routing sockets. The kqueue functionality can generally be replaced 1022 with routing sockets. 1023 102420090628: 1025 The documentation from the FreeBSD Documentation Project (Handbook, 1026 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1027 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1028 102920090624: 1030 The ABI of various structures related to the SYSV IPC API have been 1031 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1032 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1033 800100. 1034 103520090622: 1036 Layout of struct vnet has changed as routing related variables were 1037 moved to their own Vimage module. Modules need to be recompiled. Bump 1038 __FreeBSD_version to 800099. 1039 104020090619: 1041 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1042 respectively. As long as no more than 16 groups per process are used, 1043 no changes should be visible. When more than 16 groups are used, old 1044 binaries may fail if they call getgroups() or getgrouplist() with 1045 statically sized storage. Recompiling will work around this, but 1046 applications should be modified to use dynamically allocated storage 1047 for group arrays as POSIX.1-2008 does not cap an implementation's 1048 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1049 1050 NFS and portalfs mounts may also be affected as the list of groups is 1051 truncated to 16. Users of NFS who use more than 16 groups, should 1052 take care that negative group permissions are not used on the exported 1053 file systems as they will not be reliable unless a GSSAPI based 1054 authentication method is used. 1055 105620090616: 1057 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1058 option compiles in the support for adaptive spinning for lockmgrs 1059 which want to enable it. The lockinit() function now accepts the flag 1060 LK_ADAPTIVE in order to make the lock object subject to adaptive 1061 spinning when both held in write and read mode. 1062 106320090613: 1064 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1065 changed. User applications that use this ioctl need to be rebuilt. 1066 106720090611: 1068 The layout of struct thread has changed. Kernel and modules need to 1069 be rebuilt. 1070 107120090608: 1072 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1073 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1074 107520090602: 1076 window(1) has been removed from the base system. It can now be 1077 installed from ports. The port is called misc/window. 1078 107920090601: 1080 The way we are storing and accessing `routing table' entries has 1081 changed. Programs reading the FIB, like netstat, need to be 1082 re-compiled. 1083 108420090601: 1085 A new netisr implementation has been added for FreeBSD 8. Network 1086 file system modules, such as igmp, ipdivert, and others, should be 1087 rebuilt. 1088 Bump __FreeBSD_version to 800096. 1089 109020090530: 1091 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1092 more valid. 1093 109420090530: 1095 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1096 Bump __FreeBSD_version to 800094. 1097 109820090529: 1099 Add mnt_xflag field to 'struct mount'. File system modules need to be 1100 rebuilt. 1101 Bump __FreeBSD_version to 800093. 1102 110320090528: 1104 The compiling option ADAPTIVE_SX has been retired while it has been 1105 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1106 The KPI for sx_init_flags() changes as accepting flags: 1107 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1108 been introduced in order to handle the reversed logic. 1109 Bump __FreeBSD_version to 800092. 1110 111120090527: 1112 Add support for hierarchical jails. Remove global securelevel. 1113 Bump __FreeBSD_version to 800091. 1114 111520090523: 1116 The layout of struct vnet_net has changed, therefore modules 1117 need to be rebuilt. 1118 Bump __FreeBSD_version to 800090. 1119 112020090523: 1121 The newly imported zic(8) produces a new format in the output. Please 1122 run tzsetup(8) to install the newly created data to /etc/localtime. 1123 112420090520: 1125 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1126 hw.usb.* and is now consistent again with previous releases. 1127 112820090520: 1129 802.11 monitor mode support was revised and driver api's were changed. 1130 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1131 of DLT_IEEE802_11. No user-visible data structures were changed but 1132 applications that use DLT_IEEE802_11 may require changes. 1133 Bump __FreeBSD_version to 800088. 1134 113520090430: 1136 The layout of the following structs has changed: sysctl_oid, 1137 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1138 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1139 panics may be experienced. World rebuild is required for 1140 correctly checking networking state from userland. 1141 Bump __FreeBSD_version to 800085. 1142 114320090429: 1144 MLDv2 and Source-Specific Multicast (SSM) have been merged 1145 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1146 The implementation of SSM within FreeBSD's IPv6 stack closely 1147 follows the IPv4 implementation. 1148 1149 For kernel developers: 1150 1151 * The most important changes are that the ip6_output() and 1152 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1153 and this lock has been downgraded to a non-recursive mutex. 1154 1155 * As with the changes to the IPv4 stack to support SSM, filtering 1156 of inbound multicast traffic must now be performed by transport 1157 protocols within the IPv6 stack. This does not apply to TCP and 1158 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1159 1160 * The KPIs used by IPv6 multicast are similar to those used by 1161 the IPv4 stack, with the following differences: 1162 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1163 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1164 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1165 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1166 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1167 for MLDv1 have an additional 'timer' argument which is used to 1168 jitter the initial membership report for the solicited-node 1169 multicast membership on-link. 1170 * This is not strictly needed for MLDv2, which already jitters 1171 its report transmissions. However, the 'timer' argument is 1172 preserved in case MLDv1 is active on the interface. 1173 1174 * The KAME linked-list based IPv6 membership implementation has 1175 been refactored to use a vector similar to that used by the IPv4 1176 stack. 1177 Code which maintains a list of its own multicast memberships 1178 internally, e.g. carp, has been updated to reflect the new 1179 semantics. 1180 1181 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1182 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1183 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1184 implementation constraint which needs to be addressed in HEAD. 1185 1186 For application developers: 1187 1188 * The changes are broadly similar to those made for the IPv4 1189 stack. 1190 1191 * The use of IPv4 and IPv6 multicast socket options on the same 1192 socket, using mapped addresses, HAS NOT been tested or supported. 1193 1194 * There are a number of issues with the implementation of various 1195 IPv6 multicast APIs which need to be resolved in the API surface 1196 before the implementation is fully compatible with KAME userland 1197 use, and these are mostly to do with interface index treatment. 1198 1199 * The literature available discusses the use of either the delta / ASM 1200 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1201 using setsourcefilter(3)/getsourcefilter(3). For more information 1202 please refer to RFC 3768, 'Socket Interface Extensions for 1203 Multicast Source Filters'. 1204 1205 * Applications which use the published RFC 3678 APIs should be fine. 1206 1207 For systems administrators: 1208 1209 * The mtest(8) utility has been refactored to support IPv6, in 1210 addition to IPv4. Interface addresses are no longer accepted 1211 as arguments, their names must be used instead. The utility 1212 will map the interface name to its first IPv4 address as 1213 returned by getifaddrs(3). 1214 1215 * The ifmcstat(8) utility has also been updated to print the MLDv2 1216 endpoint state and source filter lists via sysctl(3). 1217 1218 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1219 loopback of IPv6 multicast datagrams by default; it defaults to 1 1220 to preserve the existing behaviour. Disabling multicast loopback is 1221 recommended for optimal system performance. 1222 1223 * The IPv6 MROUTING code has been changed to examine this sysctl 1224 instead of attempting to perform a group lookup before looping 1225 back forwarded datagrams. 1226 1227 Bump __FreeBSD_version to 800084. 1228 122920090422: 1230 Implement low-level Bluetooth HCI API. 1231 Bump __FreeBSD_version to 800083. 1232 123320090419: 1234 The layout of struct malloc_type, used by modules to register new 1235 memory allocation types, has changed. Most modules will need to 1236 be rebuilt or panics may be experienced. 1237 Bump __FreeBSD_version to 800081. 1238 123920090415: 1240 Anticipate overflowing inp_flags - add inp_flags2. 1241 This changes most offsets in inpcb, so checking v4 connection 1242 state will require a world rebuild. 1243 Bump __FreeBSD_version to 800080. 1244 124520090415: 1246 Add an llentry to struct route and struct route_in6. Modules 1247 embedding a struct route will need to be recompiled. 1248 Bump __FreeBSD_version to 800079. 1249 125020090414: 1251 The size of rt_metrics_lite and by extension rtentry has changed. 1252 Networking administration apps will need to be recompiled. 1253 The route command now supports show as an alias for get, weighting 1254 of routes, sticky and nostick flags to alter the behavior of stateful 1255 load balancing. 1256 Bump __FreeBSD_version to 800078. 1257 125820090408: 1259 Do not use Giant for kbdmux(4) locking. This is wrong and 1260 apparently causing more problems than it solves. This will 1261 re-open the issue where interrupt handlers may race with 1262 kbdmux(4) in polling mode. Typical symptoms include (but 1263 not limited to) duplicated and/or missing characters when 1264 low level console functions (such as gets) are used while 1265 interrupts are enabled (for example geli password prompt, 1266 mountroot prompt etc.). Disabling kbdmux(4) may help. 1267 126820090407: 1269 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1270 kernel modules referencing any of the above need to be recompiled. 1271 Bump __FreeBSD_version to 800075. 1272 127320090320: 1274 GEOM_PART has become the default partition slicer for storage devices, 1275 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1276 introduces some changes: 1277 1278 MSDOS/EBR: the devices created from MSDOS extended partition entries 1279 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1280 to devices with offset-based names. fstabs may need to be modified. 1281 1282 BSD: the "geometry does not match label" warning is harmless in most 1283 cases but it points to problems in file system misalignment with 1284 disk geometry. The "c" partition is now implicit, covers the whole 1285 top-level drive and cannot be (mis)used by users. 1286 1287 General: Kernel dumps are now not allowed to be written to devices 1288 whose partition types indicate they are meant to be used for file 1289 systems (or, in case of MSDOS partitions, as something else than 1290 the "386BSD" type). 1291 1292 Most of these changes date approximately from 200812. 1293 129420090319: 1295 The uscanner(4) driver has been removed from the kernel. This follows 1296 Linux removing theirs in 2.6 and making libusb the default interface 1297 (supported by sane). 1298 129920090319: 1300 The multicast forwarding code has been cleaned up. netstat(1) 1301 only relies on KVM now for printing bandwidth upcall meters. 1302 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1303 ip6_mroute_mod respectively. The config(5) options for statically 1304 compiling this code remain the same, i.e. 'options MROUTING'. 1305 130620090315: 1307 Support for the IFF_NEEDSGIANT network interface flag has been 1308 removed, which means that non-MPSAFE network device drivers are no 1309 longer supported. In particular, if_ar, if_sr, and network device 1310 drivers from the old (legacy) USB stack can no longer be built or 1311 used. 1312 131320090313: 1314 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1315 a bunch of new language catalog files have also been added. 1316 This means that some common libc messages are now localized and 1317 they depend on the LC_MESSAGES environmental variable. 1318 131920090313: 1320 The k8temp(4) driver has been renamed to amdtemp(4) since 1321 support for Family 10 and Family 11 CPU families was added. 1322 132320090309: 1324 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1325 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1326 1327 For kernel developers, the most important changes are that the 1328 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1329 and this lock has been downgraded to a non-recursive mutex. 1330 1331 Transport protocols (UDP, Raw IP) are now responsible for filtering 1332 inbound multicast traffic according to group membership and source 1333 filters. The imo_multicast_filter() KPI exists for this purpose. 1334 Transports which do not use multicast (SCTP, TCP) already reject 1335 multicast by default. Forwarding and receive performance may improve 1336 as a mutex acquisition is no longer needed in the ip_input() 1337 low-level input path. in_addmulti() and in_delmulti() are shimmed 1338 to new KPIs which exist to support SSM in-kernel. 1339 1340 For application developers, it is recommended that loopback of 1341 multicast datagrams be disabled for best performance, as this 1342 will still cause the lock to be taken for each looped-back 1343 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1344 be tuned to 0 to disable loopback by default; it defaults to 1 1345 to preserve the existing behaviour. 1346 1347 For systems administrators, to obtain best performance with 1348 multicast reception and multiple groups, it is always recommended 1349 that a card with a suitably precise hash filter is used. Hash 1350 collisions will still result in the lock being taken within the 1351 transport protocol input path to check group membership. 1352 1353 If deploying FreeBSD in an environment with IGMP snooping switches, 1354 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1355 enabled; this forces 224.0.0.0/24 group membership to be announced 1356 via IGMP. 1357 1358 The size of 'struct igmpstat' has changed; netstat needs to be 1359 recompiled to reflect this. 1360 Bump __FreeBSD_version to 800070. 1361 136220090309: 1363 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1364 updated to use it. This requires a buildworld/installworld in order to 1365 update the library and dependencies (usbconfig, etc). Its advisable to 1366 rebuild all ports which uses libusb. More specific directions are given 1367 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1368 libusb are no longer required and can be removed. 1369 137020090302: 1371 A workaround is committed to allow the creation of System V shared 1372 memory segment of size > 2 GB on the 64-bit architectures. 1373 Due to a limitation of the existing ABI, the shm_segsz member 1374 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1375 wrong for large segments. Note that limits must be explicitly 1376 raised to allow such segments to be created. 1377 137820090301: 1379 The layout of struct ifnet has changed, requiring a rebuild of all 1380 network device driver modules. 1381 138220090227: 1383 The /dev handling for the new USB stack has changed, a 1384 buildworld/installworld is required for libusb20. 1385 138620090223: 1387 The new USB2 stack has now been permanently moved in and all kernel and 1388 module names reverted to their previous values (eg, usb, ehci, ohci, 1389 ums, ...). The old usb stack can be compiled in by prefixing the name 1390 with the letter 'o', the old usb modules have been removed. 1391 Updating entry 20090216 for xorg and 20090215 for libmap may still 1392 apply. 1393 139420090217: 1395 The rc.conf(5) option if_up_delay has been renamed to 1396 defaultroute_delay to better reflect its purpose. If you have 1397 customized this setting in /etc/rc.conf you need to update it to 1398 use the new name. 1399 140020090216: 1401 xorg 7.4 wants to configure its input devices via hald which does not 1402 yet work with USB2. If the keyboard/mouse does not work in xorg then 1403 add 1404 Option "AllowEmptyInput" "off" 1405 to your ServerLayout section. This will cause X to use the configured 1406 kbd and mouse sections from your xorg.conf. 1407 140820090215: 1409 The GENERIC kernels for all architectures now default to the new USB2 1410 stack. No kernel config options or code have been removed so if a 1411 problem arises please report it and optionally revert to the old USB 1412 stack. If you are loading USB kernel modules or have a custom kernel 1413 that includes GENERIC then ensure that usb names are also changed over, 1414 eg uftdi -> usb2_serial_ftdi. 1415 1416 Older programs linked against the ports libusb 0.1 need to be 1417 redirected to the new stack's libusb20. /etc/libmap.conf can 1418 be used for this: 1419 # Map old usb library to new one for usb2 stack 1420 libusb-0.1.so.8 libusb20.so.1 1421 142220090209: 1423 All USB ethernet devices now attach as interfaces under the name ueN 1424 (eg. ue0). This is to provide a predictable name as vendors often 1425 change usb chipsets in a product without notice. 1426 142720090203: 1428 The ichsmb(4) driver has been changed to require SMBus slave 1429 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1430 All of the other SMBus controller drivers require left-justified 1431 slave addresses, so this change makes all the drivers provide the 1432 same interface. 1433 143420090201: 1435 INET6 statistics (struct ip6stat) was updated. 1436 netstat(1) needs to be recompiled. 1437 143820090119: 1439 NTFS has been removed from GENERIC kernel on amd64 to match 1440 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1441 will load ntfs.ko module automatically when NTFS support is 1442 actually needed, unless ntfs.ko is not installed or security 1443 level prohibits loading kernel modules. If either is the case, 1444 "options NTFS" has to be added into kernel config. 1445 144620090115: 1447 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1448 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1449 800061. User space tools that rely on the size of struct tcpcb in 1450 tcp_var.h (e.g. sockstat) need to be recompiled. 1451 145220081225: 1453 ng_tty(4) module updated to match the new TTY subsystem. 1454 Due to API change, user-level applications must be updated. 1455 New API support added to mpd5 CVS and expected to be present 1456 in next mpd5.3 release. 1457 145820081219: 1459 With __FreeBSD_version 800060 the makefs tool is part of 1460 the base system (it was a port). 1461 146220081216: 1463 The afdata and ifnet locks have been changed from mutexes to 1464 rwlocks, network modules will need to be re-compiled. 1465 146620081214: 1467 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1468 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1469 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1470 architecture and 40 bytes on 64-bit architecture. The userland 1471 applications "arp" and "ndp" have been updated accordingly. 1472 The output from "netstat -r" shows only routing entries and 1473 none of the L2 information. 1474 147520081130: 1476 __FreeBSD_version 800057 marks the switchover from the 1477 binary ath hal to source code. Users must add the line: 1478 1479 options AH_SUPPORT_AR5416 1480 1481 to their kernel config files when specifying: 1482 1483 device ath_hal 1484 1485 The ath_hal module no longer exists; the code is now compiled 1486 together with the driver in the ath module. It is now 1487 possible to tailor chip support (i.e. reduce the set of chips 1488 and thereby the code size); consult ath_hal(4) for details. 1489 149020081121: 1491 __FreeBSD_version 800054 adds memory barriers to 1492 <machine/atomic.h>, new interfaces to ifnet to facilitate 1493 multiple hardware transmit queues for cards that support 1494 them, and a lock-less ring-buffer implementation to 1495 enable drivers to more efficiently manage queueing of 1496 packets. 1497 149820081117: 1499 A new version of ZFS (version 13) has been merged to -HEAD. 1500 This version has zpool attribute "listsnapshots" off by 1501 default, which means "zfs list" does not show snapshots, 1502 and is the same as Solaris behavior. 1503 150420081028: 1505 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1506 150720081009: 1508 The uhci, ohci, ehci and slhci USB Host controller drivers have 1509 been put into separate modules. If you load the usb module 1510 separately through loader.conf you will need to load the 1511 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1512 controller add the following to loader.conf: 1513 1514 uhci_load="YES" 1515 ehci_load="YES" 1516 151720081009: 1518 The ABI used by the PMC toolset has changed. Please keep 1519 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1520 sync. 1521 152220081009: 1523 atapci kernel module now includes only generic PCI ATA 1524 driver. AHCI driver moved to ataahci kernel module. 1525 All vendor-specific code moved into separate kernel modules: 1526 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1527 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1528 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1529 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1530 153120080820: 1532 The TTY subsystem of the kernel has been replaced by a new 1533 implementation, which provides better scalability and an 1534 improved driver model. Most common drivers have been migrated to 1535 the new TTY subsystem, while others have not. The following 1536 drivers have not yet been ported to the new TTY layer: 1537 1538 PCI/ISA: 1539 cy, digi, rc, rp, sio 1540 1541 USB: 1542 ubser, ucycom 1543 1544 Line disciplines: 1545 ng_h4, ng_tty, ppp, sl, snp 1546 1547 Adding these drivers to your kernel configuration file shall 1548 cause compilation to fail. 1549 155020080818: 1551 ntpd has been upgraded to 4.2.4p5. 1552 155320080801: 1554 OpenSSH has been upgraded to 5.1p1. 1555 1556 For many years, FreeBSD's version of OpenSSH preferred DSA 1557 over RSA for host and user authentication keys. With this 1558 upgrade, we've switched to the vendor's default of RSA over 1559 DSA. This may cause upgraded clients to warn about unknown 1560 host keys even for previously known hosts. Users should 1561 follow the usual procedure for verifying host keys before 1562 accepting the RSA key. 1563 1564 This can be circumvented by setting the "HostKeyAlgorithms" 1565 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1566 command line. 1567 1568 Please note that the sequence of keys offered for 1569 authentication has been changed as well. You may want to 1570 specify IdentityFile in a different order to revert this 1571 behavior. 1572 157320080713: 1574 The sio(4) driver has been removed from the i386 and amd64 1575 kernel configuration files. This means uart(4) is now the 1576 default serial port driver on those platforms as well. 1577 1578 To prevent collisions with the sio(4) driver, the uart(4) driver 1579 uses different names for its device nodes. This means the 1580 onboard serial port will now most likely be called "ttyu0" 1581 instead of "ttyd0". You may need to reconfigure applications to 1582 use the new device names. 1583 1584 When using the serial port as a boot console, be sure to update 1585 /boot/device.hints and /etc/ttys before booting the new kernel. 1586 If you forget to do so, you can still manually specify the hints 1587 at the loader prompt: 1588 1589 set hint.uart.0.at="isa" 1590 set hint.uart.0.port="0x3F8" 1591 set hint.uart.0.flags="0x10" 1592 set hint.uart.0.irq="4" 1593 boot -s 1594 159520080609: 1596 The gpt(8) utility has been removed. Use gpart(8) to partition 1597 disks instead. 1598 159920080603: 1600 The version that Linuxulator emulates was changed from 2.4.2 1601 to 2.6.16. If you experience any problems with Linux binaries 1602 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1603 if it fixes the problem contact emulation mailing list. 1604 160520080525: 1606 ISDN4BSD (I4B) was removed from the src tree. You may need to 1607 update a your kernel configuration and remove relevant entries. 1608 160920080509: 1610 I have checked in code to support multiple routing tables. 1611 See the man pages setfib(1) and setfib(2). 1612 This is a hopefully backwards compatible version, 1613 but to make use of it you need to compile your kernel 1614 with options ROUTETABLES=2 (or more up to 16). 1615 161620080420: 1617 The 802.11 wireless support was redone to enable multi-bss 1618 operation on devices that are capable. The underlying device 1619 is no longer used directly but instead wlanX devices are 1620 cloned with ifconfig. This requires changes to rc.conf files. 1621 For example, change: 1622 ifconfig_ath0="WPA DHCP" 1623 to 1624 wlans_ath0=wlan0 1625 ifconfig_wlan0="WPA DHCP" 1626 see rc.conf(5) for more details. In addition, mergemaster of 1627 /etc/rc.d is highly recommended. Simultaneous update of userland 1628 and kernel wouldn't hurt either. 1629 1630 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1631 modules were merged into the base wlan module. All references 1632 to these modules (e.g. in kernel config files) must be removed. 1633 163420080408: 1635 psm(4) has gained write(2) support in native operation level. 1636 Arbitrary commands can be written to /dev/psm%d and status can 1637 be read back from it. Therefore, an application is responsible 1638 for status validation and error recovery. It is a no-op in 1639 other operation levels. 1640 164120080312: 1642 Support for KSE threading has been removed from the kernel. To 1643 run legacy applications linked against KSE libmap.conf may 1644 be used. The following libmap.conf may be used to ensure 1645 compatibility with any prior release: 1646 1647 libpthread.so.1 libthr.so.1 1648 libpthread.so.2 libthr.so.2 1649 libkse.so.3 libthr.so.3 1650 165120080301: 1652 The layout of struct vmspace has changed. This affects libkvm 1653 and any executables that link against libkvm and use the 1654 kvm_getprocs() function. In particular, but not exclusively, 1655 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1656 The effects are minimal, but it's advisable to upgrade world 1657 nonetheless. 1658 165920080229: 1660 The latest em driver no longer has support in it for the 1661 82575 adapter, this is now moved to the igb driver. The 1662 split was done to make new features that are incompatible 1663 with older hardware easier to do. 1664 166520080220: 1666 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1667 likewise the kernel option is now GEOM_LINUX_LVM. 1668 166920080211: 1670 The default NFS mount mode has changed from UDP to TCP for 1671 increased reliability. If you rely on (insecurely) NFS 1672 mounting across a firewall you may need to update your 1673 firewall rules. 1674 167520080208: 1676 Belatedly note the addition of m_collapse for compacting 1677 mbuf chains. 1678 167920080126: 1680 The fts(3) structures have been changed to use adequate 1681 integer types for their members and so to be able to cope 1682 with huge file trees. The old fts(3) ABI is preserved 1683 through symbol versioning in libc, so third-party binaries 1684 using fts(3) should still work, although they will not take 1685 advantage of the extended types. At the same time, some 1686 third-party software might fail to build after this change 1687 due to unportable assumptions made in its source code about 1688 fts(3) structure members. Such software should be fixed 1689 by its vendor or, in the worst case, in the ports tree. 1690 FreeBSD_version 800015 marks this change for the unlikely 1691 case that a portable fix is impossible. 1692 169320080123: 1694 To upgrade to -current after this date, you must be running 1695 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1696 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1697 169820071128: 1699 The ADAPTIVE_GIANT kernel option has been retired because its 1700 functionality is the default now. 1701 170220071118: 1703 The AT keyboard emulation of sunkbd(4) has been turned on 1704 by default. In order to make the special symbols of the Sun 1705 keyboards driven by sunkbd(4) work under X these now have 1706 to be configured the same way as Sun USB keyboards driven 1707 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1708 1709 Option "XkbLayout" "us" 1710 Option "XkbRules" "xorg" 1711 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1712 171320071024: 1714 It has been decided that it is desirable to provide ABI 1715 backwards compatibility to the FreeBSD 4/5/6 versions of the 1716 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1717 broken with the introduction of PCI domain support (see the 1718 20070930 entry). Unfortunately, this required the ABI of 1719 PCIOCGETCONF to be broken again in order to be able to 1720 provide backwards compatibility to the old version of that 1721 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1722 again. As for prominent ports this affects neither pciutils 1723 nor xorg-server this time, the hal port needs to be rebuilt 1724 however. 1725 172620071020: 1727 The misnamed kthread_create() and friends have been renamed 1728 to kproc_create() etc. Many of the callers already 1729 used kproc_start().. 1730 I will return kthread_create() and friends in a while 1731 with implementations that actually create threads, not procs. 1732 Renaming corresponds with version 800002. 1733 173420071010: 1735 RELENG_7 branched. 1736 1737COMMON ITEMS: 1738 1739 General Notes 1740 ------------- 1741 Avoid using make -j when upgrading. While generally safe, there are 1742 sometimes problems using -j to upgrade. If your upgrade fails with 1743 -j, please try again without -j. From time to time in the past there 1744 have been problems using -j with buildworld and/or installworld. This 1745 is especially true when upgrading between "distant" versions (eg one 1746 that cross a major release boundary or several minor releases, or when 1747 several months have passed on the -current branch). 1748 1749 Sometimes, obscure build problems are the result of environment 1750 poisoning. This can happen because the make utility reads its 1751 environment when searching for values for global variables. To run 1752 your build attempts in an "environmental clean room", prefix all make 1753 commands with 'env -i '. See the env(1) manual page for more details. 1754 1755 When upgrading from one major version to another it is generally best 1756 to upgrade to the latest code in the currently installed branch first, 1757 then do an upgrade to the new branch. This is the best-tested upgrade 1758 path, and has the highest probability of being successful. Please try 1759 this approach before reporting problems with a major version upgrade. 1760 1761 ZFS notes 1762 --------- 1763 When upgrading the boot ZFS pool to a new version, always follow 1764 these two steps: 1765 1766 1.) recompile and reinstall the ZFS boot loader and boot block 1767 (this is part of "make buildworld" and "make installworld") 1768 1769 2.) update the ZFS boot block on your boot drive 1770 1771 The following example updates the ZFS boot block on the first 1772 partition (freebsd-boot) of a GPT partitioned drive ad0: 1773 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1774 1775 Non-boot pools do not need these updates. 1776 1777 To build a kernel 1778 ----------------- 1779 If you are updating from a prior version of FreeBSD (even one just 1780 a few days old), you should follow this procedure. It is the most 1781 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1782 1783 make kernel-toolchain 1784 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1785 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1786 1787 To test a kernel once 1788 --------------------- 1789 If you just want to boot a kernel once (because you are not sure 1790 if it works, or if you want to boot a known bad kernel to provide 1791 debugging information) run 1792 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1793 nextboot -k testkernel 1794 1795 To just build a kernel when you know that it won't mess you up 1796 -------------------------------------------------------------- 1797 This assumes you are already running a CURRENT system. Replace 1798 ${arch} with the architecture of your machine (e.g. "i386", 1799 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1800 1801 cd src/sys/${arch}/conf 1802 config KERNEL_NAME_HERE 1803 cd ../compile/KERNEL_NAME_HERE 1804 make depend 1805 make 1806 make install 1807 1808 If this fails, go to the "To build a kernel" section. 1809 1810 To rebuild everything and install it on the current system. 1811 ----------------------------------------------------------- 1812 # Note: sometimes if you are running current you gotta do more than 1813 # is listed here if you are upgrading from a really old current. 1814 1815 <make sure you have good level 0 dumps> 1816 make buildworld 1817 make kernel KERNCONF=YOUR_KERNEL_HERE 1818 [1] 1819 <reboot in single user> [3] 1820 mergemaster -p [5] 1821 make installworld 1822 mergemaster -i [4] 1823 make delete-old [6] 1824 <reboot> 1825 1826 1827 To cross-install current onto a separate partition 1828 -------------------------------------------------- 1829 # In this approach we use a separate partition to hold 1830 # current's root, 'usr', and 'var' directories. A partition 1831 # holding "/", "/usr" and "/var" should be about 2GB in 1832 # size. 1833 1834 <make sure you have good level 0 dumps> 1835 <boot into -stable> 1836 make buildworld 1837 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1838 <maybe newfs current's root partition> 1839 <mount current's root partition on directory ${CURRENT_ROOT}> 1840 make installworld DESTDIR=${CURRENT_ROOT} 1841 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1842 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1843 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1844 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1845 <reboot into current> 1846 <do a "native" rebuild/install as described in the previous section> 1847 <maybe install compatibility libraries from ports/misc/compat*> 1848 <reboot> 1849 1850 1851 To upgrade in-place from stable to current 1852 ---------------------------------------------- 1853 <make sure you have good level 0 dumps> 1854 make buildworld [9] 1855 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1856 [1] 1857 <reboot in single user> [3] 1858 mergemaster -p [5] 1859 make installworld 1860 mergemaster -i [4] 1861 make delete-old [6] 1862 <reboot> 1863 1864 Make sure that you've read the UPDATING file to understand the 1865 tweaks to various things you need. At this point in the life 1866 cycle of current, things change often and you are on your own 1867 to cope. The defaults can also change, so please read ALL of 1868 the UPDATING entries. 1869 1870 Also, if you are tracking -current, you must be subscribed to 1871 freebsd-current@freebsd.org. Make sure that before you update 1872 your sources that you have read and understood all the recent 1873 messages there. If in doubt, please track -stable which has 1874 much fewer pitfalls. 1875 1876 [1] If you have third party modules, such as vmware, you 1877 should disable them at this point so they don't crash your 1878 system on reboot. 1879 1880 [3] From the bootblocks, boot -s, and then do 1881 fsck -p 1882 mount -u / 1883 mount -a 1884 cd src 1885 adjkerntz -i # if CMOS is wall time 1886 Also, when doing a major release upgrade, it is required that 1887 you boot into single user mode to do the installworld. 1888 1889 [4] Note: This step is non-optional. Failure to do this step 1890 can result in a significant reduction in the functionality of the 1891 system. Attempting to do it by hand is not recommended and those 1892 that pursue this avenue should read this file carefully, as well 1893 as the archives of freebsd-current and freebsd-hackers mailing lists 1894 for potential gotchas. The -U option is also useful to consider. 1895 See mergemaster(8) for more information. 1896 1897 [5] Usually this step is a noop. However, from time to time 1898 you may need to do this if you get unknown user in the following 1899 step. It never hurts to do it all the time. You may need to 1900 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1901 install) after the buildworld before this step if you last updated 1902 from [78]-stable or 9-stable before 20130430. 1903 1904 [6] This only deletes old files and directories. Old libraries 1905 can be deleted by "make delete-old-libs", but you have to make 1906 sure that no program is using those libraries anymore. 1907 1908 [8] In order to have a kernel that can run the 4.x binaries needed to 1909 do an installworld, you must include the COMPAT_FREEBSD4 option in 1910 your kernel. Failure to do so may leave you with a system that is 1911 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1912 required to run the 5.x binaries on more recent kernels. And so on 1913 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1914 1915 Make sure that you merge any new devices from GENERIC since the 1916 last time you updated your kernel config file. 1917 1918 [9] When checking out sources, you must include the -P flag to have 1919 cvs prune empty directories. 1920 1921 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1922 "?=" instead of the "=" assignment operator, so that buildworld can 1923 override the CPUTYPE if it needs to. 1924 1925 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1926 not on the command line, or in /etc/make.conf. buildworld will 1927 warn if it is improperly defined. 1928FORMAT: 1929 1930This file contains a list, in reverse chronological order, of major 1931breakages in tracking -current. It is not guaranteed to be a complete 1932list of such breakages, and only contains entries since October 10, 2007. 1933If you need to see UPDATING entries from before that date, you will need 1934to fetch an UPDATING file from an older FreeBSD release. 1935 1936Copyright information: 1937 1938Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1939 1940Redistribution, publication, translation and use, with or without 1941modification, in full or in part, in any form or format of this 1942document are permitted without further permission from the author. 1943 1944THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1945IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1946WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1947DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1948INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1949(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1950SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1951HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1952STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1953IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1954POSSIBILITY OF SUCH DAMAGE. 1955 1956Contact Warner Losh if you have any questions about your use of 1957this document. 1958 1959$FreeBSD: releng/9.3/UPDATING 300088 2016-05-17 22:28:36Z glebius $ 1960