UPDATING revision 294054
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 p34 FreeBSD-SA-16:07.openssh 15 16 Fix OpenSSH client information leak. [SA-16:07] 17 1820160114 p33 FreeBSD-EN-16:02.pf 19 FreeBSD-EN-16:03.yplib 20 FreeBSD-SA-16:01.sctp 21 FreeBSD-SA-16:02.ntp 22 FreeBSD-SA-16:03.linux 23 FreeBSD-SA-16:04.linux 24 FreeBSD-SA-16:05.tcp 25 FreeBSD-SA-16:06.bsnmpd 26 27 Fix pf(4) generating bad TCP checksums. [EN-16:02] 28 Fix infinite loop in YP/NIS client library. [EN-16:03] 29 Fix remote denial of service in SCTP. [SA-16:01] 30 Update NTP to 4.2.8p5. [SA-16:02] 31 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 32 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 33 Fix crash in TCP MD5 signatures. [SA-16:05] 34 Fix insecure default permissions for snmpd.config. [SA-16:06] 35 3620151216 p32 FreeBSD-SA-15:27.bind 37 Fix BIND remote denial of service vulnerability. [SA-15:27] 38 3920151205 p31 FreeBSD-SA-15:26.openssl 40 41 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 42 4320151104 p30 FreeBSD-SA-15:25.ntp [revised] 44 FreeBSD-EN-15:19.kqueue 45 FreeBSD-EN-15:20.vm 46 47 Fix regression of ntpq(8) utility exiting due to trap 6 in 48 9.3-RELEASE-p29. [SA-15:25] 49 50 Fix regression in ntpd(8) lacking support for RAWDCF reference 51 clock in 9.3-RELEASE-p29. [SA-15:25] 52 53 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 54 55 Fix applications exiting due to segmentation violation on a correct 56 memory address. [EN-15:20] 57 5820151026: p29 FreeBSD-SA-15:25.ntp 59 60 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 61 62 The configuration file syntax has been changed, thus mergemaster 63 run is recommended. Now the "kod" parameter requires "limited" 64 parameter. If the ntp.conf is not updated, the ntpd will run 65 successfully, but with KoD disabled. 66 6720151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 68 Revised patch to address a regression that prevents NIS from working. 69 7020150929: p27 FreeBSD-SA-15:24.rpcbind 71 72 Fix rpcbind(8) remote denial of service. [SA-15:24] 73 7420150916: p26 FreeBSD-EN-15:18.pkg 75 76 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 77 7820150902: p25 FreeBSD-SA-15:23.bind 79 80 Fix BIND remote denial of service vulnerability. [SA-15:23] 81 8220150825: p24 FreeBSD-SA-15:21.amd64 83 FreeBSD-SA-15:22.openssh 84 FreeBSD-EN-15:15.pkg 85 86 Fix local privilege escalation in IRET handler. [SA-15:21] 87 88 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 89 90 Fix insufficient check of unsupported pkg(7) signature methods. 91 [EN-15:15] 92 9320150818: p23 FreeBSD-SA-15:20.expat 94 95 Fix multiple integer overflows in expat (libbsdxml) XML parser. 96 [SA-15:20] 97 9820150805: p22 FreeBSD-SA-15:19.routed 99 100 Fix routed remote denial of service vulnerability. 101 10220150728: p21 FreeBSD-SA-15:15.tcp 103 FreeBSD-SA-15:16.openssh 104 FreeBSD-SA-15:17.bind 105 106 Fix resource exhaustion in TCP reassembly. [SA-15:15] 107 108 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 109 110 Fix BIND remote denial of service vulnerability. [SA-15:17] 111 11220150721: p20 FreeBSD-SA-15:13.tcp 113 114 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 115 [SA-15:13] 116 11720150707: p19 FreeBSD-SA-15:11.bind 118 Fix BIND resolver remote denial of service when validating. 119 12020150630: p18 FreeBSD-EN-15:08.sendmail [revised] 121 FreeBSD-EN-15:09.xlocale 122 123 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 124 125 Fix inconsistency between locale and rune locale states. 126 [EN-15:09] 127 12820150618: p17 FreeBSD-EN-15:08.sendmail 129 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 130 13120150612: p16 FreeBSD-SA-15:10.openssl 132 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 133 13420150609: p15 FreeBSD-EN-15:06.file 135 136 Updated base system file(1) to 5.22 to address multiple denial 137 of service issues. 138 13920150513: p14 FreeBSD-EN-15:04.freebsd-update 140 141 Fix bug with freebsd-update(8) that does not ensure the previous 142 upgrade was completed. [EN-15:04] 143 14420150407: p13 FreeBSD-SA-15:04.igmp [revised] 145 FreeBSD-SA-15:07.ntp 146 FreeBSD-SA-15:09.ipv6 147 148 Improved patch for SA-15:04.igmp. 149 150 Fix multiple vulnerabilities of ntp. [SA-15:07] 151 152 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 153 15420150320: p12 155 Fix patch for SA-15:06.openssl. 156 15720150319: p11 FreeBSD-SA-15:06.openssl 158 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 159 16020150225: p10 FreeBSD-SA-15:04.igmp 161 FreeBSD-SA-15:05.bind 162 FreeBSD-EN-15:01.vt 163 FreeBSD-EN-15:02.openssl 164 FreeBSD-EN-15:03.freebsd-update 165 166 Fix integer overflow in IGMP protocol. [SA-15:04] 167 168 Fix BIND remote denial of service vulnerability. [SA-15:05] 169 170 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 171 172 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 173 174 Fix freebsd-update libraries update ordering issue. [EN-15:03] 175 17620150127: p9 FreeBSD-SA-15:02.kmem 177 FreeBSD-SA-15:03.sctp 178 179 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 180 vulnerability. [SA-15:02] 181 182 Fix SCTP stream reset vulnerability. [SA-15:03] 183 18420150114: p8 FreeBSD-SA-15:01.openssl 185 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 186 18720141223: p7 FreeBSD-SA-14:31.ntp 188 FreeBSD-EN-14:13.freebsd-update 189 190 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 191 Fix directory deletion issue in freebsd-update. [EN-14:13] 192 19320141210: p6 FreeBSD-SA-14:28.file 194 FreeBSD-SA-14:29.bind 195 196 Fix multiple vulnerabilities in file(1) and libmagic(3). 197 [SA-14:28] 198 199 Fix BIND remote denial of service vulnerability. [SA-14:29] 200 20120141104: p5 FreeBSD-SA-14:25.setlogin 202 FreeBSD-SA-14:26.ftp 203 FreeBSD-EN-14:12.zfs 204 205 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 206 [SA-14:25] 207 208 Fix remote command execution in ftp(1). [SA-14:26] 209 210 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 211 21220141022: p4 FreeBSD-EN-14:10.tzdata 213 FreeBSD-EN-14:11.crypt 214 215 Time zone data file update. [EN-14:10] 216 217 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 218 21920141021: p3 FreeBSD-SA-14:20.rtsold 220 FreeBSD-SA-14:21.routed 221 FreeBSD-SA-14:22.namei 222 FreeBSD-SA-14:23.openssl 223 224 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 225 226 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 227 228 Fix memory leak in sandboxed namei lookup. [SA-14:22] 229 230 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 231 23220140916: p2 FreeBSD-SA-14:19.tcp 233 Fix Denial of Service in TCP packet processing. [SA-14:19] 234 23520140909: p1 FreeBSD-SA-14:18.openssl 236 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 237 23820140716: 239 9.3-RELEASE. 240 24120140608: 242 On i386 and amd64 systems, the onifconsole flag is now set by default 243 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 244 as a login TTY if it is set in the bootloader as an active kernel 245 console. No changes in behavior should result otherwise. To revert to 246 the previous behavior, set ttyu0 to "off" in /etc/ttys. 247 24820140512: 249 Clang and llvm have been upgraded to 3.4.1 release. 250 25120140321: 252 Clang and llvm have been upgraded to 3.4 release. 253 25420140216: 255 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 256 been deprecated and will not be part of FreeBSD 11.0 and later 257 releases. If you use this driver, please consider switching to 258 the nfe(4) driver instead. 259 26020131216: 261 The behavior of gss_pseudo_random() for the krb5 mechanism 262 has changed, for applications requesting a longer random string 263 than produced by the underlying enctype's pseudo-random() function. 264 In particular, the random string produced from a session key of 265 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 266 be different at the 17th octet and later, after this change. 267 The counter used in the PRF+ construction is now encoded as a 268 big-endian integer in accordance with RFC 4402. 269 __FreeBSD_version is bumped to 902505. 270 27120130930: 272 9.2-RELEASE. 273 27420130823: 275 Behavior of devfs rules path matching has been changed. 276 Pattern is now always matched against fully qualified devfs 277 path and slash characters must be explicitly matched by 278 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 279 subdirectories must be reviewed. 280 28120130705: 282 hastctl(8)'s `status' command output changed to terse one-liner format. 283 Scripts using this should switch to `list' command or be rewritten. 284 28520130618: 286 Fix a bug that allowed a tracing process (e.g. gdb) to write 287 to a memory-mapped file in the traced process's address space 288 even if neither the traced process nor the tracing process had 289 write access to that file. 290 29120130605: 292 Added ZFS TRIM support which is enabled by default. To disable 293 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 294 295 Creating new ZFS pools and adding new devices to existing pools 296 first performs a full device level TRIM which can take a significant 297 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 298 to disable this behaviour. 299 300 ZFS TRIM requires the underlying device support BIO_DELETE which 301 is currently provided by methods such as ATA TRIM and SCSI UNMAP 302 via CAM, which are typically supported by SSD's. 303 304 Stats for ZFS TRIM can be monitored by looking at the sysctl's 305 under kstat.zfs.misc.zio_trim. 306 30720130524: 308 `list' command has been added to hastctl(8). For now, it is full 309 equivalent of `status' command. 310 WARNING: in the near future the output of hastctl's status command 311 will change to more terse format. If you use `hastctl status' 312 for parsing in your scripts, switch to `hastctl list'. 313 31420130430: 315 The mergemaster command now uses the default MAKEOBJDIRPREFIX 316 rather than creating it's own in the temporary directory in 317 order allow access to bootstrapped versions of tools such as 318 install and mtree. When upgrading from version of FreeBSD where 319 the install command does not support -l, you will need to 320 install a new mergemaster command if mergemaster -p is required. 321 This can be accomplished with the command (cd src/usr.sbin/mergemaster 322 && make install). 323 324 Due to the use of the new -l option to install(1) during build 325 and install, you must take care not to directly set the INSTALL 326 make variable in your /etc/make.conf, /etc/src.conf, or on the 327 command line. If you wish to use the -C flag for all installs 328 you may be able to add INSTALL+=-C to /etc/make.conf or 329 /etc/src.conf. 330 33120130429: 332 Fix a bug that allows NFS clients to issue READDIR on files. 333 33420130315: 335 The install(1) option -M has changed meaning and now takes an 336 argument that is a file or path to append logs to. In the 337 unlikely event that -M was the last option on the command line 338 and the command line contained at least two files and a target 339 directory the first file will have logs appended to it. The -M 340 option served little practical purpose in the last decade so it's 341 used expected to be extremely rare. 342 34320130225: 344 A new compression method (lz4) has been merged to. Please refer to 345 zpool-features(7) for more information. 346 347 Please refer to the "ZFS notes" section of this file for information 348 on upgrading boot ZFS pools. 349 35020121224: 351 The VFS KBI was changed with the merge of several nullfs 352 optimizations and fixes. All filesystem modules must be 353 recompiled. 354 35520121218: 356 With the addition of auditdistd(8), a new auditdistd user is now 357 depended on during installworld. "mergemaster -p" can be used to add 358 the user prior to installworld, as documented in the handbook. 359 36020121205: 361 9.1-RELEASE. 362 36320121129: 364 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 365 Starting with this version the old system of ZFS pool versioning 366 is superseded by "feature flags". This concept enables forward 367 compatibility against certain future changes in functionality of ZFS 368 pools. The first two read-only compatible "feature flags" for ZFS 369 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 370 For more information read the new zpool-features(7) manual page. 371 Please refer to the "ZFS notes" section of this file for information 372 on upgrading boot ZFS pools. 373 37420121114: 375 The commit introducing bsd.compiler.mk breaks the traditional 376 building of kernels before this point. Add -m ${SRC}/share/mk 377 (for the right value of SRC) to your command lines to work 378 around; update your useland to a point after this; or use the 379 buildkernel/installkernel top-level targets. See also 20120829. 380 38120121102: 382 The IPFIREWALL_FORWARD kernel option has been removed. Its 383 functionality now turned on by default. 384 38520120913: 386 The random(4) support for the VIA hardware random number 387 generator (`PADLOCK') is no longer enabled unconditionally. 388 Add the PADLOCK_RNG option in the custom kernel config if 389 needed. The GENERIC kernels on i386 and amd64 do include the 390 option, so the change only affects the custom kernel 391 configurations. 392 39320120829: 394 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 395 the traditional method, you must update your system with an installworld 396 before the kernel will build. The documented make buildkernel/installkernel 397 interfaces (coupled with fresh make kernel-toolchain) continue to work. 398 39920120727: 400 The sparc64 ZFS loader has been changed to no longer try to auto- 401 detect ZFS providers based on diskN aliases but now requires these 402 to be explicitly listed in the OFW boot-device environment variable. 403 40420120422: 405 Now unix domain sockets behave "as expected" on nullfs(5). Previously 406 nullfs(5) did not pass through all behaviours to the underlying layer, 407 as a result if we bound to a socket on the lower layer we could connect 408 only to the lower path; if we bound to the upper layer we could connect 409 only to the upper path. The new behavior is one can connect to both the 410 lower and the upper paths regardless what layer path one binds to. 411 41220120109: 413 The acpi_wmi(4) status device /dev/wmistat has been renamed to 414 /dev/wmistat0. 415 41620120106: 417 A new VOP_ADVISE() was added to support posix_fadvise(2). All 418 filesystem modules must be recompiled. 419 42020120106: 421 The interface of the VOP_VPTOCNP(9) changed, now the returned 422 vnode shall be referenced, previously it was required to be 423 only held. All in-tree filesystems are converted. 424 42520120106: 426 9.0-RELEASE. 427 42820111101: 429 The broken amd(4) driver has been replaced with esp(4) in the amd64, 430 i386 and pc98 GENERIC kernel configuration files. 431 43220110913: 433 This commit modifies vfs_register() so that it uses a hash 434 calculation to set vfc_typenum, which is enabled by default. 435 The first time a system is booted after this change, the 436 vfc_typenum values will change for all file systems. The 437 main effect of this is a change to the NFS server file handles 438 for file systems that use vfc_typenum in their fsid, such as ZFS. 439 It will, however, prevent vfc_typenum from changing when file 440 systems are loaded in a different order for subsequent reboots. 441 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 442 until you are ready to remount all NFS clients after a reboot. 443 44420110828: 445 Bump the shared library version numbers for libraries that 446 do not use symbol versioning, have changed the ABI compared 447 to stable/8 and which shared library version was not bumped. 448 Done as part of 9.0-RELEASE cycle. 449 45020110815: 451 During the merge of Capsicum features, the fget(9) KPI was modified. 452 This may require the rebuilding of out-of-tree device drivers -- 453 issues have been reported specifically with the nVidia device driver. 454 __FreeBSD_version is bumped to 900041. 455 456 Also, there is a period between 20110811 and 20110814 where the 457 special devices /dev/{stdin,stdout,stderr} did not work correctly. 458 Building world from a kernel during that window may not work. 459 46020110628: 461 The packet filter (pf) code has been updated to OpenBSD 4.5. 462 You need to update userland tools to be in sync with kernel. 463 This update breaks backward compatibility with earlier pfsync(4) 464 versions. Care must be taken when updating redundant firewall setups. 465 46620110608: 467 The following sysctls and tunables are retired on x86 platforms: 468 machdep.hlt_cpus 469 machdep.hlt_logical_cpus 470 The following sysctl is retired: 471 machdep.hyperthreading_allowed 472 The sysctls were supposed to provide a way to dynamically offline and 473 online selected CPUs on x86 platforms, but the implementation has not 474 been reliable especially with SCHED_ULE scheduler. 475 machdep.hyperthreading_allowed tunable is still available to ignore 476 hyperthreading CPUs at OS level. 477 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 478 where X is an APIC ID of a CPU. Be advised, though, that disabling 479 CPUs in non-uniform fashion will result in non-uniform topology and 480 may lead to sub-optimal system performance with SCHED_ULE, which is 481 a default scheduler. 482 48320110607: 484 cpumask_t type is retired and cpuset_t is used in order to describe 485 a mask of CPUs. 486 48720110531: 488 Changes to ifconfig(8) for dynamic address family detection mandate 489 that you are running a kernel of 20110525 or later. Make sure to 490 follow the update procedure to boot a new kernel before installing 491 world. 492 49320110513: 494 Support for sun4v architecture is officially dropped 495 49620110503: 497 Several KPI breaking changes have been committed to the mii(4) layer, 498 the PHY drivers and consequently some Ethernet drivers using mii(4). 499 This means that miibus.ko and the modules of the affected Ethernet 500 drivers need to be recompiled. 501 502 Note to kernel developers: Given that the OUI bit reversion problem 503 was fixed as part of these changes all mii(4) commits related to OUIs, 504 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 505 handling, no longer can be merged verbatim to stable/8 and previous 506 branches. 507 50820110430: 509 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 510 into their kernel configurations along with 'device pci'. 511 51220110427: 513 The default NFS client is now the new NFS client, so fstype "newnfs" 514 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 515 Although mounts via fstype "nfs" will usually work without userland 516 changes, it is recommended that the mount(8) and mount_nfs(8) 517 commands be rebuilt from sources and that a link to mount_nfs called 518 mount_oldnfs be created. The new client is compiled into the 519 kernel with "options NFSCL" and this is needed for diskless root 520 file systems. The GENERIC kernel configs have been changed to use 521 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 522 To use the regular/old client, you can "mount -t oldnfs ...". For 523 a diskless root file system, you must also include a line like: 524 525 vfs.root.mountfrom="oldnfs:" 526 527 in the boot/loader.conf on the root fs on the NFS server to make 528 a diskless root fs use the old client. 529 53020110424: 531 The GENERIC kernels for all architectures now default to the new 532 CAM-based ATA stack. It means that all legacy ATA drivers were 533 removed and replaced by respective CAM drivers. If you are using 534 ATA device names in /etc/fstab or other places, make sure to update 535 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 536 where 'Y's are the sequential numbers starting from zero for each type 537 in order of detection, unless configured otherwise with tunables, 538 see cam(4)). There will be symbolic links created in /dev/ to map 539 old adX devices to the respective adaY. They should provide basic 540 compatibility for file systems mounting in most cases, but they do 541 not support old user-level APIs and do not have respective providers 542 in GEOM. Consider using updated management tools with new device names. 543 544 It is possible to load devices ahci, ata, siis and mvs as modules, 545 but option ATA_CAM should remain in kernel configuration to make ata 546 module work as CAM driver supporting legacy ATA controllers. Device ata 547 still can be used in modular fashion (atacore + ...). Modules atadisk 548 and atapi* are not used and won't affect operation in ATA_CAM mode. 549 Note that to use CAM-based ATA kernel should include CAM devices 550 scbus, pass, da (or explicitly ada), cd and optionally others. All of 551 them are parts of the cam module. 552 553 ataraid(4) functionality is now supported by the RAID GEOM class. 554 To use it you can load geom_raid kernel module and use graid(8) tool 555 for management. Instead of /dev/arX device names, use /dev/raid/rX. 556 557 No kernel config options or code have been removed, so if a problem 558 arises, please report it and optionally revert to the old ATA stack. 559 In order to do it you can remove from the kernel config: 560 options ATA_CAM 561 device ahci 562 device mvs 563 device siis 564 , and instead add back: 565 device atadisk # ATA disk drives 566 device ataraid # ATA RAID drives 567 device atapicd # ATAPI CDROM drives 568 device atapifd # ATAPI floppy drives 569 device atapist # ATAPI tape drives 570 57120110423: 572 The default NFS server has been changed to the new server, which 573 was referred to as the experimental server. If you need to switch 574 back to the old NFS server, you must now put the "-o" option on 575 both the mountd and nfsd commands. This can be done using the 576 mountd_flags and nfs_server_flags rc.conf variables until an 577 update to the rc scripts is committed, which is coming soon. 578 57920110418: 580 The GNU Objective-C runtime library (libobjc), and other Objective-C 581 related components have been removed from the base system. If you 582 require an Objective-C library, please use one of the available ports. 583 58420110331: 585 ath(4) has been split into bus- and device- modules. if_ath contains 586 the HAL, the TX rate control and the network device code. if_ath_pci 587 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 588 contains the AHB glue. Users need to load both if_ath_pci and if_ath 589 in order to use ath on everything else. 590 591 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 592 need to load if_ath and if_ath_pci for ath(4) operation. 593 59420110314: 595 As part of the replacement of sysinstall, the process of building 596 release media has changed significantly. For details, please re-read 597 release(7), which has been updated to reflect the new build process. 598 59920110218: 600 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 601 is the last available version under GPLv2. It brings a number of new 602 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 603 4.1 and SSE 4.2), better support for powerpc64, a number of new 604 directives, and lots of other small improvements. See the ChangeLog 605 file in contrib/binutils for the full details. 606 60720110218: 608 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 609 compliant, and will now use half of hash for authentication. 610 This will break interoperability with all stacks (including all 611 actual FreeBSD versions) who implement 612 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 613 authentication). 614 The only workaround with such peers is to use another HMAC 615 algorithm for IPsec ("phase 2") authentication. 616 61720110207: 618 Remove the uio_yield prototype and symbol. This function has 619 been misnamed since it was introduced and should not be 620 globally exposed with this name. The equivalent functionality 621 is now available using kern_yield(curthread->td_user_pri). 622 The function remains undocumented. 623 62420110112: 625 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 626 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 627 for scalar sysctls is defined but disabled. Code that needs 628 UQUAD to pass the type checking that must compile on older 629 systems where the define is not present can check against 630 __FreeBSD_version >= 900030. 631 632 The system dialog(1) has been replaced with a new version previously 633 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 634 with the previous version, but the libdialog associated with it has 635 a largely incompatible API. As such, the original version of libdialog 636 will be kept temporarily as libodialog, until its base system consumers 637 are replaced or updated. Bump __FreeBSD_version to 900030. 638 63920110103: 640 If you are trying to run make universe on a -stable system, and you get 641 the following warning: 642 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 643 unknown. config(8) likely too old." 644 or something similar to it, then you must upgrade your -stable system 645 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 646 stable/8) or build the config from the latest stable/8 branch and 647 install it on your system. 648 649 Prior to this date, building a current universe on 8-stable system from 650 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 651 error in the first kernel build phase. A new config on those old 652 systems will fix that problem for older versions of -current. 653 65420101228: 655 The TCP stack has been modified to allow Khelp modules to interact with 656 it via helper hook points and store per-connection data in the TCP 657 control block. Bump __FreeBSD_version to 900029. User space tools that 658 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 659 be recompiled. 660 66120101114: 662 Generic IEEE 802.3 annex 31B full duplex flow control support has been 663 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 664 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 665 to take advantage of it instead of using custom implementations. This 666 means that these drivers now no longer unconditionally advertise 667 support for flow control but only do so if flow control is a selected 668 media option. This was implemented in the generic support that way in 669 order to allow flow control to be switched on and off via ifconfig(8) 670 with the PHY specific default to typically off in order to protect 671 from unwanted effects. Consequently, if you used flow control with 672 one of the above mentioned drivers you now need to explicitly enable 673 it, for example via: 674 ifconfig bge0 media auto mediaopt flowcontrol 675 676 Along with the above mentioned changes generic support for setting 677 1000baseT master mode also has been added and brgphy(4), ciphy(4), 678 e1000phy(4) as well as ip1000phy(4) have been converted to take 679 advantage of it. This means that these drivers now no longer take the 680 link0 parameter for selecting master mode but the master media option 681 has to be used instead, for example like in the following: 682 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 683 684 Selection of master mode now is also available with all other PHY 685 drivers supporting 1000baseT. 686 68720101111: 688 The TCP stack has received a significant update to add support for 689 modularised congestion control and generally improve the clarity of 690 congestion control decisions. Bump __FreeBSD_version to 900025. User 691 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 692 sockstat) need to be recompiled. 693 69420101002: 695 The man(1) utility has been replaced by a new version that no longer 696 uses /etc/manpath.config. Please consult man.conf(5) for how to 697 migrate local entries to the new format. 698 69920100928: 700 The copyright strings printed by login(1) and sshd(8) at the time of a 701 new connection have been removed to follow other operating systems and 702 upstream sshd. 703 70420100915: 705 A workaround for a fixed ld bug has been removed in kernel code, 706 so make sure that your system ld is built from sources after 707 revision 210245 from 2010-07-19 (r211583 if building head kernel 708 on stable/8, r211584 for stable/7; both from 2010-08-21). 709 A symptom of incorrect ld version is different addresses for 710 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 711 71220100913: 713 The $ipv6_prefer variable in rc.conf(5) has been split into 714 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 715 716 The $ip6addrctl_policy is a variable to choose a pre-defined 717 address selection policy set by ip6addrctl(8). A value 718 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 719 default is "AUTO". 720 721 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 722 flag (see an entry of 20090926) is set on an interface with no 723 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 724 security reason. If you want IPv6 link-local address on all 725 interfaces by default, set this to "YES". 726 727 The old ipv6_prefer="YES" is equivalent to 728 ipv6_activate_all_interfaces="YES" and 729 ip6addrctl_policy="ipv6_prefer". 730 73120100913: 732 DTrace has grown support for userland tracing. Due to this, DTrace is 733 now i386 and amd64 only. 734 dtruss(1) is now installed by default on those systems and a new 735 kernel module is needed for userland tracing: fasttrap. 736 No changes to your kernel config file are necessary to enable 737 userland tracing, but you might consider adding 'STRIP=' and 738 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 739 to have informative userland stack traces in DTrace (ustack). 740 74120100725: 742 The acpi_aiboost(4) driver has been removed in favor of the new 743 aibs(4) driver. You should update your kernel configuration file. 744 74520100722: 746 BSD grep has been imported to the base system and it is built by 747 default. It is completely BSD licensed, highly GNU-compatible, uses 748 less memory than its GNU counterpart and has a small codebase. 749 However, it is slower than its GNU counterpart, which is mostly 750 noticeable for larger searches, for smaller ones it is measurable 751 but not significant. The reason is complex, the most important factor 752 is that we lack a modern and efficient regex library and GNU 753 overcomes this by optimizing the searches internally. Future work 754 on improving the regex performance is planned, for the meantime, 755 users that need better performance, can build GNU grep instead by 756 setting the WITH_GNU_GREP knob. 757 75820100713: 759 Due to the import of powerpc64 support, all existing powerpc kernel 760 configuration files must be updated with a machine directive like this: 761 machine powerpc powerpc 762 763 In addition, an updated config(8) is required to build powerpc kernels 764 after this change. 765 76620100713: 767 A new version of ZFS (version 15) has been merged to -HEAD. 768 This version uses a python library for the following subcommands: 769 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 770 For full functionality of these commands the following port must 771 be installed: sysutils/py-zfs 772 77320100429: 774 'vm_page's are now hashed by physical address to an array of mutexes. 775 Currently this is only used to serialize access to hold_count. Over 776 time the page queue mutex will be peeled away. This changes the size 777 of pmap on every architecture. And requires all callers of vm_page_hold 778 and vm_page_unhold to be updated. 779 78020100402: 781 WITH_CTF can now be specified in src.conf (not recommended, there 782 are some problems with static executables), make.conf (would also 783 affect ports which do not use GNU make and do not override the 784 compile targets) or in the kernel config (via "makeoptions 785 WITH_CTF=yes"). 786 When WITH_CTF was specified there before this was silently ignored, 787 so make sure that WITH_CTF is not used in places which could lead 788 to unwanted behavior. 789 79020100311: 791 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 792 to allow 32-bit compatibility on non-x86 platforms. All kernel 793 configurations on amd64 and ia64 platforms using these options must 794 be modified accordingly. 795 79620100113: 797 The utmp user accounting database has been replaced with utmpx, 798 the user accounting interface standardized by POSIX. 799 Unfortunately the semantics of utmp and utmpx don't match, 800 making it practically impossible to support both interfaces. 801 The user accounting database is used by tools like finger(1), 802 last(1), talk(1), w(1) and ac(8). 803 804 All applications in the base system use utmpx. This means only 805 local binaries (e.g. from the ports tree) may still use these 806 utmp database files. These applications must be rebuilt to make 807 use of utmpx. 808 809 After the system has been upgraded, it is safe to remove the old 810 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 811 assuming their contents is of no importance anymore. Old wtmp 812 databases can only be used by last(1) and ac(8) after they have 813 been converted to the new format using wtmpcvt(1). 814 81520100108: 816 Introduce the kernel thread "deadlock resolver" (which can be enabled 817 via the DEADLKRES option, see NOTES for more details) and the 818 sleepq_type() function for sleepqueues. 819 82020091202: 821 The rc.firewall and rc.firewall6 were unified, and 822 rc.firewall6 and rc.d/ip6fw were removed. 823 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 824 variables are obsoleted. Instead, the following new rc 825 variables are added to rc.d/ipfw: 826 827 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 828 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 829 firewall_simple_onet_ipv6, firewall_trusted_ipv6 830 831 The meanings correspond to the relevant IPv4 variables. 832 83320091125: 834 8.0-RELEASE. 835 83620091113: 837 The default terminal emulation for syscons(4) has been changed 838 from cons25 to xterm on all platforms except pc98. This means 839 that the /etc/ttys file needs to be updated to ensure correct 840 operation of applications on the console. 841 842 The terminal emulation style can be toggled per window by using 843 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 844 options can be used to change the compile-time default back to 845 cons25. 846 847 To prevent graphical artifacts, make sure the TERM environment 848 variable is set to match the terminal emulation that is being 849 performed by syscons(4). 850 85120091109: 852 The layout of the structure ieee80211req_scan_result has changed. 853 Applications that require wireless scan results (e.g. ifconfig(8)) 854 from net80211 need to be recompiled. 855 856 Applications such as wpa_supplicant(8) may require a full world 857 build without using NO_CLEAN in order to get synchronized with the 858 new structure. 859 86020091025: 861 The iwn(4) driver has been updated to support the 5000 and 5150 series. 862 There's one kernel module for each firmware. Adding "device iwnfw" 863 to the kernel configuration file means including all three firmware 864 images inside the kernel. If you want to include just the one for 865 your wireless card, use the devices iwn4965fw, iwn5000fw or 866 iwn5150fw. 867 86820090926: 869 The rc.d/network_ipv6, IPv6 configuration script has been integrated 870 into rc.d/netif. The changes are the following: 871 872 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 873 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 874 Note that both variables need the "inet6" keyword at the head. 875 876 Do not set $ipv6_network_interfaces manually if you do not 877 understand what you are doing. It is not needed in most cases. 878 879 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 880 they are obsolete. 881 882 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 883 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 884 885 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 886 all configured interfaces have "inet6 accept_rtadv" in the 887 $ifconfig_IF_ipv6. These are for backward compatibility. 888 889 3. A new variable $ipv6_prefer has been added. If NO, IPv6 890 functionality of interfaces with no corresponding 891 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 892 and the default address selection policy of ip6addrctl(8) 893 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 894 Note that if you want to configure IPv6 functionality on the 895 disabled interfaces after boot, first you need to clear the flag by 896 using ifconfig(8) like: 897 898 ifconfig em0 inet6 -ifdisabled 899 900 If YES, the default address selection policy is set as 901 IPv6-preferred. 902 903 The default value of $ipv6_prefer is NO. 904 905 4. If your system need to receive Router Advertisement messages, 906 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 907 scripts automatically invoke rtsol(8) when the interface becomes 908 UP. The Router Advertisement messages are used for SLAAC 909 (State-Less Address AutoConfiguration). 910 91120090922: 912 802.11s D3.03 support was committed. This is incompatible with the 913 previous code, which was based on D3.0. 914 91520090912: 916 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 917 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 918 control whether accepting Router Advertisement messages or not. 919 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 920 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 921 The ifconfig(8) utility now supports these flags. 922 92320090910: 924 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 925 mount(8) and -a option for df(1) to see them. 926 92720090825: 928 The old tunable hw.bus.devctl_disable has been superseded by 929 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 930 replaced by hw.bus.devctl_queue=0. The default for this new tunable 931 is 1000. 932 93320090813: 934 Remove the option STOP_NMI. The default action is now to use NMI only 935 for KDB via the newly introduced function stop_cpus_hard() and 936 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 937 93820090803: 939 The stable/8 branch created in subversion. This corresponds to the 940 RELENG_8 branch in CVS. 941 94220090719: 943 Bump the shared library version numbers for all libraries that do not 944 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 945 __FreeBSD_version to 800105. 946 94720090714: 948 Due to changes in the implementation of virtual network stack support, 949 all network-related kernel modules must be recompiled. As this change 950 breaks the ABI, bump __FreeBSD_version to 800104. 951 95220090713: 953 The TOE interface to the TCP syncache has been modified to remove 954 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 955 The cxgb driver is the only TOE consumer affected by this change, and 956 needs to be recompiled along with the kernel. As this change breaks 957 the ABI, bump __FreeBSD_version to 800103. 958 95920090712: 960 Padding has been added to struct tcpcb, sackhint and tcpstat in 961 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 962 maintaining the ABI. However, this change breaks the ABI, so bump 963 __FreeBSD_version to 800102. User space tools that rely on the size of 964 any of these structs (e.g. sockstat) need to be recompiled. 965 96620090630: 967 The NFS_LEGACYRPC option has been removed along with the old kernel 968 RPC implementation that this option selected. Kernel configurations 969 may need to be adjusted. 970 97120090629: 972 The network interface device nodes at /dev/net/<interface> have been 973 removed. All ioctl operations can be performed the normal way using 974 routing sockets. The kqueue functionality can generally be replaced 975 with routing sockets. 976 97720090628: 978 The documentation from the FreeBSD Documentation Project (Handbook, 979 FAQ, etc.) is now installed via packages by sysinstall(8) and under 980 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 981 98220090624: 983 The ABI of various structures related to the SYSV IPC API have been 984 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 985 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 986 800100. 987 98820090622: 989 Layout of struct vnet has changed as routing related variables were 990 moved to their own Vimage module. Modules need to be recompiled. Bump 991 __FreeBSD_version to 800099. 992 99320090619: 994 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 995 respectively. As long as no more than 16 groups per process are used, 996 no changes should be visible. When more than 16 groups are used, old 997 binaries may fail if they call getgroups() or getgrouplist() with 998 statically sized storage. Recompiling will work around this, but 999 applications should be modified to use dynamically allocated storage 1000 for group arrays as POSIX.1-2008 does not cap an implementation's 1001 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1002 1003 NFS and portalfs mounts may also be affected as the list of groups is 1004 truncated to 16. Users of NFS who use more than 16 groups, should 1005 take care that negative group permissions are not used on the exported 1006 file systems as they will not be reliable unless a GSSAPI based 1007 authentication method is used. 1008 100920090616: 1010 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1011 option compiles in the support for adaptive spinning for lockmgrs 1012 which want to enable it. The lockinit() function now accepts the flag 1013 LK_ADAPTIVE in order to make the lock object subject to adaptive 1014 spinning when both held in write and read mode. 1015 101620090613: 1017 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1018 changed. User applications that use this ioctl need to be rebuilt. 1019 102020090611: 1021 The layout of struct thread has changed. Kernel and modules need to 1022 be rebuilt. 1023 102420090608: 1025 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1026 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1027 102820090602: 1029 window(1) has been removed from the base system. It can now be 1030 installed from ports. The port is called misc/window. 1031 103220090601: 1033 The way we are storing and accessing `routing table' entries has 1034 changed. Programs reading the FIB, like netstat, need to be 1035 re-compiled. 1036 103720090601: 1038 A new netisr implementation has been added for FreeBSD 8. Network 1039 file system modules, such as igmp, ipdivert, and others, should be 1040 rebuilt. 1041 Bump __FreeBSD_version to 800096. 1042 104320090530: 1044 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1045 more valid. 1046 104720090530: 1048 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1049 Bump __FreeBSD_version to 800094. 1050 105120090529: 1052 Add mnt_xflag field to 'struct mount'. File system modules need to be 1053 rebuilt. 1054 Bump __FreeBSD_version to 800093. 1055 105620090528: 1057 The compiling option ADAPTIVE_SX has been retired while it has been 1058 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1059 The KPI for sx_init_flags() changes as accepting flags: 1060 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1061 been introduced in order to handle the reversed logic. 1062 Bump __FreeBSD_version to 800092. 1063 106420090527: 1065 Add support for hierarchical jails. Remove global securelevel. 1066 Bump __FreeBSD_version to 800091. 1067 106820090523: 1069 The layout of struct vnet_net has changed, therefore modules 1070 need to be rebuilt. 1071 Bump __FreeBSD_version to 800090. 1072 107320090523: 1074 The newly imported zic(8) produces a new format in the output. Please 1075 run tzsetup(8) to install the newly created data to /etc/localtime. 1076 107720090520: 1078 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1079 hw.usb.* and is now consistent again with previous releases. 1080 108120090520: 1082 802.11 monitor mode support was revised and driver api's were changed. 1083 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1084 of DLT_IEEE802_11. No user-visible data structures were changed but 1085 applications that use DLT_IEEE802_11 may require changes. 1086 Bump __FreeBSD_version to 800088. 1087 108820090430: 1089 The layout of the following structs has changed: sysctl_oid, 1090 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1091 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1092 panics may be experienced. World rebuild is required for 1093 correctly checking networking state from userland. 1094 Bump __FreeBSD_version to 800085. 1095 109620090429: 1097 MLDv2 and Source-Specific Multicast (SSM) have been merged 1098 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1099 The implementation of SSM within FreeBSD's IPv6 stack closely 1100 follows the IPv4 implementation. 1101 1102 For kernel developers: 1103 1104 * The most important changes are that the ip6_output() and 1105 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1106 and this lock has been downgraded to a non-recursive mutex. 1107 1108 * As with the changes to the IPv4 stack to support SSM, filtering 1109 of inbound multicast traffic must now be performed by transport 1110 protocols within the IPv6 stack. This does not apply to TCP and 1111 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1112 1113 * The KPIs used by IPv6 multicast are similar to those used by 1114 the IPv4 stack, with the following differences: 1115 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1116 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1117 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1118 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1119 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1120 for MLDv1 have an additional 'timer' argument which is used to 1121 jitter the initial membership report for the solicited-node 1122 multicast membership on-link. 1123 * This is not strictly needed for MLDv2, which already jitters 1124 its report transmissions. However, the 'timer' argument is 1125 preserved in case MLDv1 is active on the interface. 1126 1127 * The KAME linked-list based IPv6 membership implementation has 1128 been refactored to use a vector similar to that used by the IPv4 1129 stack. 1130 Code which maintains a list of its own multicast memberships 1131 internally, e.g. carp, has been updated to reflect the new 1132 semantics. 1133 1134 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1135 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1136 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1137 implementation constraint which needs to be addressed in HEAD. 1138 1139 For application developers: 1140 1141 * The changes are broadly similar to those made for the IPv4 1142 stack. 1143 1144 * The use of IPv4 and IPv6 multicast socket options on the same 1145 socket, using mapped addresses, HAS NOT been tested or supported. 1146 1147 * There are a number of issues with the implementation of various 1148 IPv6 multicast APIs which need to be resolved in the API surface 1149 before the implementation is fully compatible with KAME userland 1150 use, and these are mostly to do with interface index treatment. 1151 1152 * The literature available discusses the use of either the delta / ASM 1153 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1154 using setsourcefilter(3)/getsourcefilter(3). For more information 1155 please refer to RFC 3768, 'Socket Interface Extensions for 1156 Multicast Source Filters'. 1157 1158 * Applications which use the published RFC 3678 APIs should be fine. 1159 1160 For systems administrators: 1161 1162 * The mtest(8) utility has been refactored to support IPv6, in 1163 addition to IPv4. Interface addresses are no longer accepted 1164 as arguments, their names must be used instead. The utility 1165 will map the interface name to its first IPv4 address as 1166 returned by getifaddrs(3). 1167 1168 * The ifmcstat(8) utility has also been updated to print the MLDv2 1169 endpoint state and source filter lists via sysctl(3). 1170 1171 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1172 loopback of IPv6 multicast datagrams by default; it defaults to 1 1173 to preserve the existing behaviour. Disabling multicast loopback is 1174 recommended for optimal system performance. 1175 1176 * The IPv6 MROUTING code has been changed to examine this sysctl 1177 instead of attempting to perform a group lookup before looping 1178 back forwarded datagrams. 1179 1180 Bump __FreeBSD_version to 800084. 1181 118220090422: 1183 Implement low-level Bluetooth HCI API. 1184 Bump __FreeBSD_version to 800083. 1185 118620090419: 1187 The layout of struct malloc_type, used by modules to register new 1188 memory allocation types, has changed. Most modules will need to 1189 be rebuilt or panics may be experienced. 1190 Bump __FreeBSD_version to 800081. 1191 119220090415: 1193 Anticipate overflowing inp_flags - add inp_flags2. 1194 This changes most offsets in inpcb, so checking v4 connection 1195 state will require a world rebuild. 1196 Bump __FreeBSD_version to 800080. 1197 119820090415: 1199 Add an llentry to struct route and struct route_in6. Modules 1200 embedding a struct route will need to be recompiled. 1201 Bump __FreeBSD_version to 800079. 1202 120320090414: 1204 The size of rt_metrics_lite and by extension rtentry has changed. 1205 Networking administration apps will need to be recompiled. 1206 The route command now supports show as an alias for get, weighting 1207 of routes, sticky and nostick flags to alter the behavior of stateful 1208 load balancing. 1209 Bump __FreeBSD_version to 800078. 1210 121120090408: 1212 Do not use Giant for kbdmux(4) locking. This is wrong and 1213 apparently causing more problems than it solves. This will 1214 re-open the issue where interrupt handlers may race with 1215 kbdmux(4) in polling mode. Typical symptoms include (but 1216 not limited to) duplicated and/or missing characters when 1217 low level console functions (such as gets) are used while 1218 interrupts are enabled (for example geli password prompt, 1219 mountroot prompt etc.). Disabling kbdmux(4) may help. 1220 122120090407: 1222 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1223 kernel modules referencing any of the above need to be recompiled. 1224 Bump __FreeBSD_version to 800075. 1225 122620090320: 1227 GEOM_PART has become the default partition slicer for storage devices, 1228 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1229 introduces some changes: 1230 1231 MSDOS/EBR: the devices created from MSDOS extended partition entries 1232 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1233 to devices with offset-based names. fstabs may need to be modified. 1234 1235 BSD: the "geometry does not match label" warning is harmless in most 1236 cases but it points to problems in file system misalignment with 1237 disk geometry. The "c" partition is now implicit, covers the whole 1238 top-level drive and cannot be (mis)used by users. 1239 1240 General: Kernel dumps are now not allowed to be written to devices 1241 whose partition types indicate they are meant to be used for file 1242 systems (or, in case of MSDOS partitions, as something else than 1243 the "386BSD" type). 1244 1245 Most of these changes date approximately from 200812. 1246 124720090319: 1248 The uscanner(4) driver has been removed from the kernel. This follows 1249 Linux removing theirs in 2.6 and making libusb the default interface 1250 (supported by sane). 1251 125220090319: 1253 The multicast forwarding code has been cleaned up. netstat(1) 1254 only relies on KVM now for printing bandwidth upcall meters. 1255 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1256 ip6_mroute_mod respectively. The config(5) options for statically 1257 compiling this code remain the same, i.e. 'options MROUTING'. 1258 125920090315: 1260 Support for the IFF_NEEDSGIANT network interface flag has been 1261 removed, which means that non-MPSAFE network device drivers are no 1262 longer supported. In particular, if_ar, if_sr, and network device 1263 drivers from the old (legacy) USB stack can no longer be built or 1264 used. 1265 126620090313: 1267 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1268 a bunch of new language catalog files have also been added. 1269 This means that some common libc messages are now localized and 1270 they depend on the LC_MESSAGES environmental variable. 1271 127220090313: 1273 The k8temp(4) driver has been renamed to amdtemp(4) since 1274 support for Family 10 and Family 11 CPU families was added. 1275 127620090309: 1277 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1278 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1279 1280 For kernel developers, the most important changes are that the 1281 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1282 and this lock has been downgraded to a non-recursive mutex. 1283 1284 Transport protocols (UDP, Raw IP) are now responsible for filtering 1285 inbound multicast traffic according to group membership and source 1286 filters. The imo_multicast_filter() KPI exists for this purpose. 1287 Transports which do not use multicast (SCTP, TCP) already reject 1288 multicast by default. Forwarding and receive performance may improve 1289 as a mutex acquisition is no longer needed in the ip_input() 1290 low-level input path. in_addmulti() and in_delmulti() are shimmed 1291 to new KPIs which exist to support SSM in-kernel. 1292 1293 For application developers, it is recommended that loopback of 1294 multicast datagrams be disabled for best performance, as this 1295 will still cause the lock to be taken for each looped-back 1296 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1297 be tuned to 0 to disable loopback by default; it defaults to 1 1298 to preserve the existing behaviour. 1299 1300 For systems administrators, to obtain best performance with 1301 multicast reception and multiple groups, it is always recommended 1302 that a card with a suitably precise hash filter is used. Hash 1303 collisions will still result in the lock being taken within the 1304 transport protocol input path to check group membership. 1305 1306 If deploying FreeBSD in an environment with IGMP snooping switches, 1307 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1308 enabled; this forces 224.0.0.0/24 group membership to be announced 1309 via IGMP. 1310 1311 The size of 'struct igmpstat' has changed; netstat needs to be 1312 recompiled to reflect this. 1313 Bump __FreeBSD_version to 800070. 1314 131520090309: 1316 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1317 updated to use it. This requires a buildworld/installworld in order to 1318 update the library and dependencies (usbconfig, etc). Its advisable to 1319 rebuild all ports which uses libusb. More specific directions are given 1320 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1321 libusb are no longer required and can be removed. 1322 132320090302: 1324 A workaround is committed to allow the creation of System V shared 1325 memory segment of size > 2 GB on the 64-bit architectures. 1326 Due to a limitation of the existing ABI, the shm_segsz member 1327 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1328 wrong for large segments. Note that limits must be explicitly 1329 raised to allow such segments to be created. 1330 133120090301: 1332 The layout of struct ifnet has changed, requiring a rebuild of all 1333 network device driver modules. 1334 133520090227: 1336 The /dev handling for the new USB stack has changed, a 1337 buildworld/installworld is required for libusb20. 1338 133920090223: 1340 The new USB2 stack has now been permanently moved in and all kernel and 1341 module names reverted to their previous values (eg, usb, ehci, ohci, 1342 ums, ...). The old usb stack can be compiled in by prefixing the name 1343 with the letter 'o', the old usb modules have been removed. 1344 Updating entry 20090216 for xorg and 20090215 for libmap may still 1345 apply. 1346 134720090217: 1348 The rc.conf(5) option if_up_delay has been renamed to 1349 defaultroute_delay to better reflect its purpose. If you have 1350 customized this setting in /etc/rc.conf you need to update it to 1351 use the new name. 1352 135320090216: 1354 xorg 7.4 wants to configure its input devices via hald which does not 1355 yet work with USB2. If the keyboard/mouse does not work in xorg then 1356 add 1357 Option "AllowEmptyInput" "off" 1358 to your ServerLayout section. This will cause X to use the configured 1359 kbd and mouse sections from your xorg.conf. 1360 136120090215: 1362 The GENERIC kernels for all architectures now default to the new USB2 1363 stack. No kernel config options or code have been removed so if a 1364 problem arises please report it and optionally revert to the old USB 1365 stack. If you are loading USB kernel modules or have a custom kernel 1366 that includes GENERIC then ensure that usb names are also changed over, 1367 eg uftdi -> usb2_serial_ftdi. 1368 1369 Older programs linked against the ports libusb 0.1 need to be 1370 redirected to the new stack's libusb20. /etc/libmap.conf can 1371 be used for this: 1372 # Map old usb library to new one for usb2 stack 1373 libusb-0.1.so.8 libusb20.so.1 1374 137520090209: 1376 All USB ethernet devices now attach as interfaces under the name ueN 1377 (eg. ue0). This is to provide a predictable name as vendors often 1378 change usb chipsets in a product without notice. 1379 138020090203: 1381 The ichsmb(4) driver has been changed to require SMBus slave 1382 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1383 All of the other SMBus controller drivers require left-justified 1384 slave addresses, so this change makes all the drivers provide the 1385 same interface. 1386 138720090201: 1388 INET6 statistics (struct ip6stat) was updated. 1389 netstat(1) needs to be recompiled. 1390 139120090119: 1392 NTFS has been removed from GENERIC kernel on amd64 to match 1393 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1394 will load ntfs.ko module automatically when NTFS support is 1395 actually needed, unless ntfs.ko is not installed or security 1396 level prohibits loading kernel modules. If either is the case, 1397 "options NTFS" has to be added into kernel config. 1398 139920090115: 1400 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1401 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1402 800061. User space tools that rely on the size of struct tcpcb in 1403 tcp_var.h (e.g. sockstat) need to be recompiled. 1404 140520081225: 1406 ng_tty(4) module updated to match the new TTY subsystem. 1407 Due to API change, user-level applications must be updated. 1408 New API support added to mpd5 CVS and expected to be present 1409 in next mpd5.3 release. 1410 141120081219: 1412 With __FreeBSD_version 800060 the makefs tool is part of 1413 the base system (it was a port). 1414 141520081216: 1416 The afdata and ifnet locks have been changed from mutexes to 1417 rwlocks, network modules will need to be re-compiled. 1418 141920081214: 1420 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1421 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1422 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1423 architecture and 40 bytes on 64-bit architecture. The userland 1424 applications "arp" and "ndp" have been updated accordingly. 1425 The output from "netstat -r" shows only routing entries and 1426 none of the L2 information. 1427 142820081130: 1429 __FreeBSD_version 800057 marks the switchover from the 1430 binary ath hal to source code. Users must add the line: 1431 1432 options AH_SUPPORT_AR5416 1433 1434 to their kernel config files when specifying: 1435 1436 device ath_hal 1437 1438 The ath_hal module no longer exists; the code is now compiled 1439 together with the driver in the ath module. It is now 1440 possible to tailor chip support (i.e. reduce the set of chips 1441 and thereby the code size); consult ath_hal(4) for details. 1442 144320081121: 1444 __FreeBSD_version 800054 adds memory barriers to 1445 <machine/atomic.h>, new interfaces to ifnet to facilitate 1446 multiple hardware transmit queues for cards that support 1447 them, and a lock-less ring-buffer implementation to 1448 enable drivers to more efficiently manage queueing of 1449 packets. 1450 145120081117: 1452 A new version of ZFS (version 13) has been merged to -HEAD. 1453 This version has zpool attribute "listsnapshots" off by 1454 default, which means "zfs list" does not show snapshots, 1455 and is the same as Solaris behavior. 1456 145720081028: 1458 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1459 146020081009: 1461 The uhci, ohci, ehci and slhci USB Host controller drivers have 1462 been put into separate modules. If you load the usb module 1463 separately through loader.conf you will need to load the 1464 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1465 controller add the following to loader.conf: 1466 1467 uhci_load="YES" 1468 ehci_load="YES" 1469 147020081009: 1471 The ABI used by the PMC toolset has changed. Please keep 1472 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1473 sync. 1474 147520081009: 1476 atapci kernel module now includes only generic PCI ATA 1477 driver. AHCI driver moved to ataahci kernel module. 1478 All vendor-specific code moved into separate kernel modules: 1479 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1480 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1481 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1482 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1483 148420080820: 1485 The TTY subsystem of the kernel has been replaced by a new 1486 implementation, which provides better scalability and an 1487 improved driver model. Most common drivers have been migrated to 1488 the new TTY subsystem, while others have not. The following 1489 drivers have not yet been ported to the new TTY layer: 1490 1491 PCI/ISA: 1492 cy, digi, rc, rp, sio 1493 1494 USB: 1495 ubser, ucycom 1496 1497 Line disciplines: 1498 ng_h4, ng_tty, ppp, sl, snp 1499 1500 Adding these drivers to your kernel configuration file shall 1501 cause compilation to fail. 1502 150320080818: 1504 ntpd has been upgraded to 4.2.4p5. 1505 150620080801: 1507 OpenSSH has been upgraded to 5.1p1. 1508 1509 For many years, FreeBSD's version of OpenSSH preferred DSA 1510 over RSA for host and user authentication keys. With this 1511 upgrade, we've switched to the vendor's default of RSA over 1512 DSA. This may cause upgraded clients to warn about unknown 1513 host keys even for previously known hosts. Users should 1514 follow the usual procedure for verifying host keys before 1515 accepting the RSA key. 1516 1517 This can be circumvented by setting the "HostKeyAlgorithms" 1518 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1519 command line. 1520 1521 Please note that the sequence of keys offered for 1522 authentication has been changed as well. You may want to 1523 specify IdentityFile in a different order to revert this 1524 behavior. 1525 152620080713: 1527 The sio(4) driver has been removed from the i386 and amd64 1528 kernel configuration files. This means uart(4) is now the 1529 default serial port driver on those platforms as well. 1530 1531 To prevent collisions with the sio(4) driver, the uart(4) driver 1532 uses different names for its device nodes. This means the 1533 onboard serial port will now most likely be called "ttyu0" 1534 instead of "ttyd0". You may need to reconfigure applications to 1535 use the new device names. 1536 1537 When using the serial port as a boot console, be sure to update 1538 /boot/device.hints and /etc/ttys before booting the new kernel. 1539 If you forget to do so, you can still manually specify the hints 1540 at the loader prompt: 1541 1542 set hint.uart.0.at="isa" 1543 set hint.uart.0.port="0x3F8" 1544 set hint.uart.0.flags="0x10" 1545 set hint.uart.0.irq="4" 1546 boot -s 1547 154820080609: 1549 The gpt(8) utility has been removed. Use gpart(8) to partition 1550 disks instead. 1551 155220080603: 1553 The version that Linuxulator emulates was changed from 2.4.2 1554 to 2.6.16. If you experience any problems with Linux binaries 1555 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1556 if it fixes the problem contact emulation mailing list. 1557 155820080525: 1559 ISDN4BSD (I4B) was removed from the src tree. You may need to 1560 update a your kernel configuration and remove relevant entries. 1561 156220080509: 1563 I have checked in code to support multiple routing tables. 1564 See the man pages setfib(1) and setfib(2). 1565 This is a hopefully backwards compatible version, 1566 but to make use of it you need to compile your kernel 1567 with options ROUTETABLES=2 (or more up to 16). 1568 156920080420: 1570 The 802.11 wireless support was redone to enable multi-bss 1571 operation on devices that are capable. The underlying device 1572 is no longer used directly but instead wlanX devices are 1573 cloned with ifconfig. This requires changes to rc.conf files. 1574 For example, change: 1575 ifconfig_ath0="WPA DHCP" 1576 to 1577 wlans_ath0=wlan0 1578 ifconfig_wlan0="WPA DHCP" 1579 see rc.conf(5) for more details. In addition, mergemaster of 1580 /etc/rc.d is highly recommended. Simultaneous update of userland 1581 and kernel wouldn't hurt either. 1582 1583 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1584 modules were merged into the base wlan module. All references 1585 to these modules (e.g. in kernel config files) must be removed. 1586 158720080408: 1588 psm(4) has gained write(2) support in native operation level. 1589 Arbitrary commands can be written to /dev/psm%d and status can 1590 be read back from it. Therefore, an application is responsible 1591 for status validation and error recovery. It is a no-op in 1592 other operation levels. 1593 159420080312: 1595 Support for KSE threading has been removed from the kernel. To 1596 run legacy applications linked against KSE libmap.conf may 1597 be used. The following libmap.conf may be used to ensure 1598 compatibility with any prior release: 1599 1600 libpthread.so.1 libthr.so.1 1601 libpthread.so.2 libthr.so.2 1602 libkse.so.3 libthr.so.3 1603 160420080301: 1605 The layout of struct vmspace has changed. This affects libkvm 1606 and any executables that link against libkvm and use the 1607 kvm_getprocs() function. In particular, but not exclusively, 1608 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1609 The effects are minimal, but it's advisable to upgrade world 1610 nonetheless. 1611 161220080229: 1613 The latest em driver no longer has support in it for the 1614 82575 adapter, this is now moved to the igb driver. The 1615 split was done to make new features that are incompatible 1616 with older hardware easier to do. 1617 161820080220: 1619 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1620 likewise the kernel option is now GEOM_LINUX_LVM. 1621 162220080211: 1623 The default NFS mount mode has changed from UDP to TCP for 1624 increased reliability. If you rely on (insecurely) NFS 1625 mounting across a firewall you may need to update your 1626 firewall rules. 1627 162820080208: 1629 Belatedly note the addition of m_collapse for compacting 1630 mbuf chains. 1631 163220080126: 1633 The fts(3) structures have been changed to use adequate 1634 integer types for their members and so to be able to cope 1635 with huge file trees. The old fts(3) ABI is preserved 1636 through symbol versioning in libc, so third-party binaries 1637 using fts(3) should still work, although they will not take 1638 advantage of the extended types. At the same time, some 1639 third-party software might fail to build after this change 1640 due to unportable assumptions made in its source code about 1641 fts(3) structure members. Such software should be fixed 1642 by its vendor or, in the worst case, in the ports tree. 1643 FreeBSD_version 800015 marks this change for the unlikely 1644 case that a portable fix is impossible. 1645 164620080123: 1647 To upgrade to -current after this date, you must be running 1648 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1649 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1650 165120071128: 1652 The ADAPTIVE_GIANT kernel option has been retired because its 1653 functionality is the default now. 1654 165520071118: 1656 The AT keyboard emulation of sunkbd(4) has been turned on 1657 by default. In order to make the special symbols of the Sun 1658 keyboards driven by sunkbd(4) work under X these now have 1659 to be configured the same way as Sun USB keyboards driven 1660 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1661 1662 Option "XkbLayout" "us" 1663 Option "XkbRules" "xorg" 1664 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1665 166620071024: 1667 It has been decided that it is desirable to provide ABI 1668 backwards compatibility to the FreeBSD 4/5/6 versions of the 1669 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1670 broken with the introduction of PCI domain support (see the 1671 20070930 entry). Unfortunately, this required the ABI of 1672 PCIOCGETCONF to be broken again in order to be able to 1673 provide backwards compatibility to the old version of that 1674 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1675 again. As for prominent ports this affects neither pciutils 1676 nor xorg-server this time, the hal port needs to be rebuilt 1677 however. 1678 167920071020: 1680 The misnamed kthread_create() and friends have been renamed 1681 to kproc_create() etc. Many of the callers already 1682 used kproc_start().. 1683 I will return kthread_create() and friends in a while 1684 with implementations that actually create threads, not procs. 1685 Renaming corresponds with version 800002. 1686 168720071010: 1688 RELENG_7 branched. 1689 1690COMMON ITEMS: 1691 1692 General Notes 1693 ------------- 1694 Avoid using make -j when upgrading. While generally safe, there are 1695 sometimes problems using -j to upgrade. If your upgrade fails with 1696 -j, please try again without -j. From time to time in the past there 1697 have been problems using -j with buildworld and/or installworld. This 1698 is especially true when upgrading between "distant" versions (eg one 1699 that cross a major release boundary or several minor releases, or when 1700 several months have passed on the -current branch). 1701 1702 Sometimes, obscure build problems are the result of environment 1703 poisoning. This can happen because the make utility reads its 1704 environment when searching for values for global variables. To run 1705 your build attempts in an "environmental clean room", prefix all make 1706 commands with 'env -i '. See the env(1) manual page for more details. 1707 1708 When upgrading from one major version to another it is generally best 1709 to upgrade to the latest code in the currently installed branch first, 1710 then do an upgrade to the new branch. This is the best-tested upgrade 1711 path, and has the highest probability of being successful. Please try 1712 this approach before reporting problems with a major version upgrade. 1713 1714 ZFS notes 1715 --------- 1716 When upgrading the boot ZFS pool to a new version, always follow 1717 these two steps: 1718 1719 1.) recompile and reinstall the ZFS boot loader and boot block 1720 (this is part of "make buildworld" and "make installworld") 1721 1722 2.) update the ZFS boot block on your boot drive 1723 1724 The following example updates the ZFS boot block on the first 1725 partition (freebsd-boot) of a GPT partitioned drive ad0: 1726 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1727 1728 Non-boot pools do not need these updates. 1729 1730 To build a kernel 1731 ----------------- 1732 If you are updating from a prior version of FreeBSD (even one just 1733 a few days old), you should follow this procedure. It is the most 1734 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1735 1736 make kernel-toolchain 1737 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1738 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1739 1740 To test a kernel once 1741 --------------------- 1742 If you just want to boot a kernel once (because you are not sure 1743 if it works, or if you want to boot a known bad kernel to provide 1744 debugging information) run 1745 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1746 nextboot -k testkernel 1747 1748 To just build a kernel when you know that it won't mess you up 1749 -------------------------------------------------------------- 1750 This assumes you are already running a CURRENT system. Replace 1751 ${arch} with the architecture of your machine (e.g. "i386", 1752 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1753 1754 cd src/sys/${arch}/conf 1755 config KERNEL_NAME_HERE 1756 cd ../compile/KERNEL_NAME_HERE 1757 make depend 1758 make 1759 make install 1760 1761 If this fails, go to the "To build a kernel" section. 1762 1763 To rebuild everything and install it on the current system. 1764 ----------------------------------------------------------- 1765 # Note: sometimes if you are running current you gotta do more than 1766 # is listed here if you are upgrading from a really old current. 1767 1768 <make sure you have good level 0 dumps> 1769 make buildworld 1770 make kernel KERNCONF=YOUR_KERNEL_HERE 1771 [1] 1772 <reboot in single user> [3] 1773 mergemaster -p [5] 1774 make installworld 1775 mergemaster -i [4] 1776 make delete-old [6] 1777 <reboot> 1778 1779 1780 To cross-install current onto a separate partition 1781 -------------------------------------------------- 1782 # In this approach we use a separate partition to hold 1783 # current's root, 'usr', and 'var' directories. A partition 1784 # holding "/", "/usr" and "/var" should be about 2GB in 1785 # size. 1786 1787 <make sure you have good level 0 dumps> 1788 <boot into -stable> 1789 make buildworld 1790 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1791 <maybe newfs current's root partition> 1792 <mount current's root partition on directory ${CURRENT_ROOT}> 1793 make installworld DESTDIR=${CURRENT_ROOT} 1794 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1795 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1796 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1797 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1798 <reboot into current> 1799 <do a "native" rebuild/install as described in the previous section> 1800 <maybe install compatibility libraries from ports/misc/compat*> 1801 <reboot> 1802 1803 1804 To upgrade in-place from stable to current 1805 ---------------------------------------------- 1806 <make sure you have good level 0 dumps> 1807 make buildworld [9] 1808 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1809 [1] 1810 <reboot in single user> [3] 1811 mergemaster -p [5] 1812 make installworld 1813 mergemaster -i [4] 1814 make delete-old [6] 1815 <reboot> 1816 1817 Make sure that you've read the UPDATING file to understand the 1818 tweaks to various things you need. At this point in the life 1819 cycle of current, things change often and you are on your own 1820 to cope. The defaults can also change, so please read ALL of 1821 the UPDATING entries. 1822 1823 Also, if you are tracking -current, you must be subscribed to 1824 freebsd-current@freebsd.org. Make sure that before you update 1825 your sources that you have read and understood all the recent 1826 messages there. If in doubt, please track -stable which has 1827 much fewer pitfalls. 1828 1829 [1] If you have third party modules, such as vmware, you 1830 should disable them at this point so they don't crash your 1831 system on reboot. 1832 1833 [3] From the bootblocks, boot -s, and then do 1834 fsck -p 1835 mount -u / 1836 mount -a 1837 cd src 1838 adjkerntz -i # if CMOS is wall time 1839 Also, when doing a major release upgrade, it is required that 1840 you boot into single user mode to do the installworld. 1841 1842 [4] Note: This step is non-optional. Failure to do this step 1843 can result in a significant reduction in the functionality of the 1844 system. Attempting to do it by hand is not recommended and those 1845 that pursue this avenue should read this file carefully, as well 1846 as the archives of freebsd-current and freebsd-hackers mailing lists 1847 for potential gotchas. The -U option is also useful to consider. 1848 See mergemaster(8) for more information. 1849 1850 [5] Usually this step is a noop. However, from time to time 1851 you may need to do this if you get unknown user in the following 1852 step. It never hurts to do it all the time. You may need to 1853 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1854 install) after the buildworld before this step if you last updated 1855 from [78]-stable or 9-stable before 20130430. 1856 1857 [6] This only deletes old files and directories. Old libraries 1858 can be deleted by "make delete-old-libs", but you have to make 1859 sure that no program is using those libraries anymore. 1860 1861 [8] In order to have a kernel that can run the 4.x binaries needed to 1862 do an installworld, you must include the COMPAT_FREEBSD4 option in 1863 your kernel. Failure to do so may leave you with a system that is 1864 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1865 required to run the 5.x binaries on more recent kernels. And so on 1866 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1867 1868 Make sure that you merge any new devices from GENERIC since the 1869 last time you updated your kernel config file. 1870 1871 [9] When checking out sources, you must include the -P flag to have 1872 cvs prune empty directories. 1873 1874 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1875 "?=" instead of the "=" assignment operator, so that buildworld can 1876 override the CPUTYPE if it needs to. 1877 1878 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1879 not on the command line, or in /etc/make.conf. buildworld will 1880 warn if it is improperly defined. 1881FORMAT: 1882 1883This file contains a list, in reverse chronological order, of major 1884breakages in tracking -current. It is not guaranteed to be a complete 1885list of such breakages, and only contains entries since October 10, 2007. 1886If you need to see UPDATING entries from before that date, you will need 1887to fetch an UPDATING file from an older FreeBSD release. 1888 1889Copyright information: 1890 1891Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1892 1893Redistribution, publication, translation and use, with or without 1894modification, in full or in part, in any form or format of this 1895document are permitted without further permission from the author. 1896 1897THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1898IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1899WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1900DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1901INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1902(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1903SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1904HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1905STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1906IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1907POSSIBILITY OF SUCH DAMAGE. 1908 1909Contact Warner Losh if you have any questions about your use of 1910this document. 1911 1912$FreeBSD: releng/9.3/UPDATING 294054 2016-01-14 22:53:07Z glebius $ 1913