UPDATING revision 288385
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 1420150929: p27 FreeBSD-SA-15:24.rpcbind 15 16 Fix rpcbind(8) remote denial of service. [SA-15:24] 17 1820150916: p26 FreeBSD-EN-15:18.pkg 19 20 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 21 2220150902: p25 FreeBSD-SA-15:23.bind 23 24 Fix BIND remote denial of service vulnerability. [SA-15:23] 25 2620150825: p24 FreeBSD-SA-15:21.amd64 27 FreeBSD-SA-15:22.openssh 28 FreeBSD-EN-15:15.pkg 29 30 Fix local privilege escalation in IRET handler. [SA-15:21] 31 32 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 33 34 Fix insufficient check of unsupported pkg(7) signature methods. 35 [EN-15:15] 36 3720150818: p23 FreeBSD-SA-15:20.expat 38 39 Fix multiple integer overflows in expat (libbsdxml) XML parser. 40 [SA-15:20] 41 4220150805: p22 FreeBSD-SA-15:19.routed 43 44 Fix routed remote denial of service vulnerability. 45 4620150728: p21 FreeBSD-SA-15:15.tcp 47 FreeBSD-SA-15:16.openssh 48 FreeBSD-SA-15:17.bind 49 50 Fix resource exhaustion in TCP reassembly. [SA-15:15] 51 52 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 53 54 Fix BIND remote denial of service vulnerability. [SA-15:17] 55 5620150721: p20 FreeBSD-SA-15:13.tcp 57 58 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 59 [SA-15:13] 60 6120150707: p19 FreeBSD-SA-15:11.bind 62 Fix BIND resolver remote denial of service when validating. 63 6420150630: p18 FreeBSD-EN-15:08.sendmail [revised] 65 FreeBSD-EN-15:09.xlocale 66 67 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 68 69 Fix inconsistency between locale and rune locale states. 70 [EN-15:09] 71 7220150618: p17 FreeBSD-EN-15:08.sendmail 73 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 74 7520150612: p16 FreeBSD-SA-15:10.openssl 76 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 77 7820150609: p15 FreeBSD-EN-15:06.file 79 80 Updated base system file(1) to 5.22 to address multiple denial 81 of service issues. 82 8320150513: p14 FreeBSD-EN-15:04.freebsd-update 84 85 Fix bug with freebsd-update(8) that does not ensure the previous 86 upgrade was completed. [EN-15:04] 87 8820150407: p13 FreeBSD-SA-15:04.igmp [revised] 89 FreeBSD-SA-15:07.ntp 90 FreeBSD-SA-15:09.ipv6 91 92 Improved patch for SA-15:04.igmp. 93 94 Fix multiple vulnerabilities of ntp. [SA-15:07] 95 96 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 97 9820150320: p12 99 Fix patch for SA-15:06.openssl. 100 10120150319: p11 FreeBSD-SA-15:06.openssl 102 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 103 10420150225: p10 FreeBSD-SA-15:04.igmp 105 FreeBSD-SA-15:05.bind 106 FreeBSD-EN-15:01.vt 107 FreeBSD-EN-15:02.openssl 108 FreeBSD-EN-15:03.freebsd-update 109 110 Fix integer overflow in IGMP protocol. [SA-15:04] 111 112 Fix BIND remote denial of service vulnerability. [SA-15:05] 113 114 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 115 116 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 117 118 Fix freebsd-update libraries update ordering issue. [EN-15:03] 119 12020150127: p9 FreeBSD-SA-15:02.kmem 121 FreeBSD-SA-15:03.sctp 122 123 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 124 vulnerability. [SA-15:02] 125 126 Fix SCTP stream reset vulnerability. [SA-15:03] 127 12820150114: p8 FreeBSD-SA-15:01.openssl 129 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 130 13120141223: p7 FreeBSD-SA-14:31.ntp 132 FreeBSD-EN-14:13.freebsd-update 133 134 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 135 Fix directory deletion issue in freebsd-update. [EN-14:13] 136 13720141210: p6 FreeBSD-SA-14:28.file 138 FreeBSD-SA-14:29.bind 139 140 Fix multiple vulnerabilities in file(1) and libmagic(3). 141 [SA-14:28] 142 143 Fix BIND remote denial of service vulnerability. [SA-14:29] 144 14520141104: p5 FreeBSD-SA-14:25.setlogin 146 FreeBSD-SA-14:26.ftp 147 FreeBSD-EN-14:12.zfs 148 149 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 150 [SA-14:25] 151 152 Fix remote command execution in ftp(1). [SA-14:26] 153 154 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 155 15620141022: p4 FreeBSD-EN-14:10.tzdata 157 FreeBSD-EN-14:11.crypt 158 159 Time zone data file update. [EN-14:10] 160 161 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 162 16320141021: p3 FreeBSD-SA-14:20.rtsold 164 FreeBSD-SA-14:21.routed 165 FreeBSD-SA-14:22.namei 166 FreeBSD-SA-14:23.openssl 167 168 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 169 170 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 171 172 Fix memory leak in sandboxed namei lookup. [SA-14:22] 173 174 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 175 17620140916: p2 FreeBSD-SA-14:19.tcp 177 Fix Denial of Service in TCP packet processing. [SA-14:19] 178 17920140909: p1 FreeBSD-SA-14:18.openssl 180 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 181 18220140716: 183 9.3-RELEASE. 184 18520140608: 186 On i386 and amd64 systems, the onifconsole flag is now set by default 187 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 188 as a login TTY if it is set in the bootloader as an active kernel 189 console. No changes in behavior should result otherwise. To revert to 190 the previous behavior, set ttyu0 to "off" in /etc/ttys. 191 19220140512: 193 Clang and llvm have been upgraded to 3.4.1 release. 194 19520140321: 196 Clang and llvm have been upgraded to 3.4 release. 197 19820140216: 199 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 200 been deprecated and will not be part of FreeBSD 11.0 and later 201 releases. If you use this driver, please consider switching to 202 the nfe(4) driver instead. 203 20420131216: 205 The behavior of gss_pseudo_random() for the krb5 mechanism 206 has changed, for applications requesting a longer random string 207 than produced by the underlying enctype's pseudo-random() function. 208 In particular, the random string produced from a session key of 209 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 210 be different at the 17th octet and later, after this change. 211 The counter used in the PRF+ construction is now encoded as a 212 big-endian integer in accordance with RFC 4402. 213 __FreeBSD_version is bumped to 902505. 214 21520130930: 216 9.2-RELEASE. 217 21820130823: 219 Behavior of devfs rules path matching has been changed. 220 Pattern is now always matched against fully qualified devfs 221 path and slash characters must be explicitly matched by 222 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 223 subdirectories must be reviewed. 224 22520130705: 226 hastctl(8)'s `status' command output changed to terse one-liner format. 227 Scripts using this should switch to `list' command or be rewritten. 228 22920130618: 230 Fix a bug that allowed a tracing process (e.g. gdb) to write 231 to a memory-mapped file in the traced process's address space 232 even if neither the traced process nor the tracing process had 233 write access to that file. 234 23520130605: 236 Added ZFS TRIM support which is enabled by default. To disable 237 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 238 239 Creating new ZFS pools and adding new devices to existing pools 240 first performs a full device level TRIM which can take a significant 241 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 242 to disable this behaviour. 243 244 ZFS TRIM requires the underlying device support BIO_DELETE which 245 is currently provided by methods such as ATA TRIM and SCSI UNMAP 246 via CAM, which are typically supported by SSD's. 247 248 Stats for ZFS TRIM can be monitored by looking at the sysctl's 249 under kstat.zfs.misc.zio_trim. 250 25120130524: 252 `list' command has been added to hastctl(8). For now, it is full 253 equivalent of `status' command. 254 WARNING: in the near future the output of hastctl's status command 255 will change to more terse format. If you use `hastctl status' 256 for parsing in your scripts, switch to `hastctl list'. 257 25820130430: 259 The mergemaster command now uses the default MAKEOBJDIRPREFIX 260 rather than creating it's own in the temporary directory in 261 order allow access to bootstrapped versions of tools such as 262 install and mtree. When upgrading from version of FreeBSD where 263 the install command does not support -l, you will need to 264 install a new mergemaster command if mergemaster -p is required. 265 This can be accomplished with the command (cd src/usr.sbin/mergemaster 266 && make install). 267 268 Due to the use of the new -l option to install(1) during build 269 and install, you must take care not to directly set the INSTALL 270 make variable in your /etc/make.conf, /etc/src.conf, or on the 271 command line. If you wish to use the -C flag for all installs 272 you may be able to add INSTALL+=-C to /etc/make.conf or 273 /etc/src.conf. 274 27520130429: 276 Fix a bug that allows NFS clients to issue READDIR on files. 277 27820130315: 279 The install(1) option -M has changed meaning and now takes an 280 argument that is a file or path to append logs to. In the 281 unlikely event that -M was the last option on the command line 282 and the command line contained at least two files and a target 283 directory the first file will have logs appended to it. The -M 284 option served little practical purpose in the last decade so it's 285 used expected to be extremely rare. 286 28720130225: 288 A new compression method (lz4) has been merged to. Please refer to 289 zpool-features(7) for more information. 290 291 Please refer to the "ZFS notes" section of this file for information 292 on upgrading boot ZFS pools. 293 29420121224: 295 The VFS KBI was changed with the merge of several nullfs 296 optimizations and fixes. All filesystem modules must be 297 recompiled. 298 29920121218: 300 With the addition of auditdistd(8), a new auditdistd user is now 301 depended on during installworld. "mergemaster -p" can be used to add 302 the user prior to installworld, as documented in the handbook. 303 30420121205: 305 9.1-RELEASE. 306 30720121129: 308 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 309 Starting with this version the old system of ZFS pool versioning 310 is superseded by "feature flags". This concept enables forward 311 compatibility against certain future changes in functionality of ZFS 312 pools. The first two read-only compatible "feature flags" for ZFS 313 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 314 For more information read the new zpool-features(7) manual page. 315 Please refer to the "ZFS notes" section of this file for information 316 on upgrading boot ZFS pools. 317 31820121114: 319 The commit introducing bsd.compiler.mk breaks the traditional 320 building of kernels before this point. Add -m ${SRC}/share/mk 321 (for the right value of SRC) to your command lines to work 322 around; update your useland to a point after this; or use the 323 buildkernel/installkernel top-level targets. See also 20120829. 324 32520121102: 326 The IPFIREWALL_FORWARD kernel option has been removed. Its 327 functionality now turned on by default. 328 32920120913: 330 The random(4) support for the VIA hardware random number 331 generator (`PADLOCK') is no longer enabled unconditionally. 332 Add the PADLOCK_RNG option in the custom kernel config if 333 needed. The GENERIC kernels on i386 and amd64 do include the 334 option, so the change only affects the custom kernel 335 configurations. 336 33720120829: 338 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 339 the traditional method, you must update your system with an installworld 340 before the kernel will build. The documented make buildkernel/installkernel 341 interfaces (coupled with fresh make kernel-toolchain) continue to work. 342 34320120727: 344 The sparc64 ZFS loader has been changed to no longer try to auto- 345 detect ZFS providers based on diskN aliases but now requires these 346 to be explicitly listed in the OFW boot-device environment variable. 347 34820120422: 349 Now unix domain sockets behave "as expected" on nullfs(5). Previously 350 nullfs(5) did not pass through all behaviours to the underlying layer, 351 as a result if we bound to a socket on the lower layer we could connect 352 only to the lower path; if we bound to the upper layer we could connect 353 only to the upper path. The new behavior is one can connect to both the 354 lower and the upper paths regardless what layer path one binds to. 355 35620120109: 357 The acpi_wmi(4) status device /dev/wmistat has been renamed to 358 /dev/wmistat0. 359 36020120106: 361 A new VOP_ADVISE() was added to support posix_fadvise(2). All 362 filesystem modules must be recompiled. 363 36420120106: 365 The interface of the VOP_VPTOCNP(9) changed, now the returned 366 vnode shall be referenced, previously it was required to be 367 only held. All in-tree filesystems are converted. 368 36920120106: 370 9.0-RELEASE. 371 37220111101: 373 The broken amd(4) driver has been replaced with esp(4) in the amd64, 374 i386 and pc98 GENERIC kernel configuration files. 375 37620110913: 377 This commit modifies vfs_register() so that it uses a hash 378 calculation to set vfc_typenum, which is enabled by default. 379 The first time a system is booted after this change, the 380 vfc_typenum values will change for all file systems. The 381 main effect of this is a change to the NFS server file handles 382 for file systems that use vfc_typenum in their fsid, such as ZFS. 383 It will, however, prevent vfc_typenum from changing when file 384 systems are loaded in a different order for subsequent reboots. 385 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 386 until you are ready to remount all NFS clients after a reboot. 387 38820110828: 389 Bump the shared library version numbers for libraries that 390 do not use symbol versioning, have changed the ABI compared 391 to stable/8 and which shared library version was not bumped. 392 Done as part of 9.0-RELEASE cycle. 393 39420110815: 395 During the merge of Capsicum features, the fget(9) KPI was modified. 396 This may require the rebuilding of out-of-tree device drivers -- 397 issues have been reported specifically with the nVidia device driver. 398 __FreeBSD_version is bumped to 900041. 399 400 Also, there is a period between 20110811 and 20110814 where the 401 special devices /dev/{stdin,stdout,stderr} did not work correctly. 402 Building world from a kernel during that window may not work. 403 40420110628: 405 The packet filter (pf) code has been updated to OpenBSD 4.5. 406 You need to update userland tools to be in sync with kernel. 407 This update breaks backward compatibility with earlier pfsync(4) 408 versions. Care must be taken when updating redundant firewall setups. 409 41020110608: 411 The following sysctls and tunables are retired on x86 platforms: 412 machdep.hlt_cpus 413 machdep.hlt_logical_cpus 414 The following sysctl is retired: 415 machdep.hyperthreading_allowed 416 The sysctls were supposed to provide a way to dynamically offline and 417 online selected CPUs on x86 platforms, but the implementation has not 418 been reliable especially with SCHED_ULE scheduler. 419 machdep.hyperthreading_allowed tunable is still available to ignore 420 hyperthreading CPUs at OS level. 421 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 422 where X is an APIC ID of a CPU. Be advised, though, that disabling 423 CPUs in non-uniform fashion will result in non-uniform topology and 424 may lead to sub-optimal system performance with SCHED_ULE, which is 425 a default scheduler. 426 42720110607: 428 cpumask_t type is retired and cpuset_t is used in order to describe 429 a mask of CPUs. 430 43120110531: 432 Changes to ifconfig(8) for dynamic address family detection mandate 433 that you are running a kernel of 20110525 or later. Make sure to 434 follow the update procedure to boot a new kernel before installing 435 world. 436 43720110513: 438 Support for sun4v architecture is officially dropped 439 44020110503: 441 Several KPI breaking changes have been committed to the mii(4) layer, 442 the PHY drivers and consequently some Ethernet drivers using mii(4). 443 This means that miibus.ko and the modules of the affected Ethernet 444 drivers need to be recompiled. 445 446 Note to kernel developers: Given that the OUI bit reversion problem 447 was fixed as part of these changes all mii(4) commits related to OUIs, 448 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 449 handling, no longer can be merged verbatim to stable/8 and previous 450 branches. 451 45220110430: 453 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 454 into their kernel configurations along with 'device pci'. 455 45620110427: 457 The default NFS client is now the new NFS client, so fstype "newnfs" 458 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 459 Although mounts via fstype "nfs" will usually work without userland 460 changes, it is recommended that the mount(8) and mount_nfs(8) 461 commands be rebuilt from sources and that a link to mount_nfs called 462 mount_oldnfs be created. The new client is compiled into the 463 kernel with "options NFSCL" and this is needed for diskless root 464 file systems. The GENERIC kernel configs have been changed to use 465 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 466 To use the regular/old client, you can "mount -t oldnfs ...". For 467 a diskless root file system, you must also include a line like: 468 469 vfs.root.mountfrom="oldnfs:" 470 471 in the boot/loader.conf on the root fs on the NFS server to make 472 a diskless root fs use the old client. 473 47420110424: 475 The GENERIC kernels for all architectures now default to the new 476 CAM-based ATA stack. It means that all legacy ATA drivers were 477 removed and replaced by respective CAM drivers. If you are using 478 ATA device names in /etc/fstab or other places, make sure to update 479 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 480 where 'Y's are the sequential numbers starting from zero for each type 481 in order of detection, unless configured otherwise with tunables, 482 see cam(4)). There will be symbolic links created in /dev/ to map 483 old adX devices to the respective adaY. They should provide basic 484 compatibility for file systems mounting in most cases, but they do 485 not support old user-level APIs and do not have respective providers 486 in GEOM. Consider using updated management tools with new device names. 487 488 It is possible to load devices ahci, ata, siis and mvs as modules, 489 but option ATA_CAM should remain in kernel configuration to make ata 490 module work as CAM driver supporting legacy ATA controllers. Device ata 491 still can be used in modular fashion (atacore + ...). Modules atadisk 492 and atapi* are not used and won't affect operation in ATA_CAM mode. 493 Note that to use CAM-based ATA kernel should include CAM devices 494 scbus, pass, da (or explicitly ada), cd and optionally others. All of 495 them are parts of the cam module. 496 497 ataraid(4) functionality is now supported by the RAID GEOM class. 498 To use it you can load geom_raid kernel module and use graid(8) tool 499 for management. Instead of /dev/arX device names, use /dev/raid/rX. 500 501 No kernel config options or code have been removed, so if a problem 502 arises, please report it and optionally revert to the old ATA stack. 503 In order to do it you can remove from the kernel config: 504 options ATA_CAM 505 device ahci 506 device mvs 507 device siis 508 , and instead add back: 509 device atadisk # ATA disk drives 510 device ataraid # ATA RAID drives 511 device atapicd # ATAPI CDROM drives 512 device atapifd # ATAPI floppy drives 513 device atapist # ATAPI tape drives 514 51520110423: 516 The default NFS server has been changed to the new server, which 517 was referred to as the experimental server. If you need to switch 518 back to the old NFS server, you must now put the "-o" option on 519 both the mountd and nfsd commands. This can be done using the 520 mountd_flags and nfs_server_flags rc.conf variables until an 521 update to the rc scripts is committed, which is coming soon. 522 52320110418: 524 The GNU Objective-C runtime library (libobjc), and other Objective-C 525 related components have been removed from the base system. If you 526 require an Objective-C library, please use one of the available ports. 527 52820110331: 529 ath(4) has been split into bus- and device- modules. if_ath contains 530 the HAL, the TX rate control and the network device code. if_ath_pci 531 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 532 contains the AHB glue. Users need to load both if_ath_pci and if_ath 533 in order to use ath on everything else. 534 535 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 536 need to load if_ath and if_ath_pci for ath(4) operation. 537 53820110314: 539 As part of the replacement of sysinstall, the process of building 540 release media has changed significantly. For details, please re-read 541 release(7), which has been updated to reflect the new build process. 542 54320110218: 544 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 545 is the last available version under GPLv2. It brings a number of new 546 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 547 4.1 and SSE 4.2), better support for powerpc64, a number of new 548 directives, and lots of other small improvements. See the ChangeLog 549 file in contrib/binutils for the full details. 550 55120110218: 552 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 553 compliant, and will now use half of hash for authentication. 554 This will break interoperability with all stacks (including all 555 actual FreeBSD versions) who implement 556 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 557 authentication). 558 The only workaround with such peers is to use another HMAC 559 algorithm for IPsec ("phase 2") authentication. 560 56120110207: 562 Remove the uio_yield prototype and symbol. This function has 563 been misnamed since it was introduced and should not be 564 globally exposed with this name. The equivalent functionality 565 is now available using kern_yield(curthread->td_user_pri). 566 The function remains undocumented. 567 56820110112: 569 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 570 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 571 for scalar sysctls is defined but disabled. Code that needs 572 UQUAD to pass the type checking that must compile on older 573 systems where the define is not present can check against 574 __FreeBSD_version >= 900030. 575 576 The system dialog(1) has been replaced with a new version previously 577 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 578 with the previous version, but the libdialog associated with it has 579 a largely incompatible API. As such, the original version of libdialog 580 will be kept temporarily as libodialog, until its base system consumers 581 are replaced or updated. Bump __FreeBSD_version to 900030. 582 58320110103: 584 If you are trying to run make universe on a -stable system, and you get 585 the following warning: 586 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 587 unknown. config(8) likely too old." 588 or something similar to it, then you must upgrade your -stable system 589 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 590 stable/8) or build the config from the latest stable/8 branch and 591 install it on your system. 592 593 Prior to this date, building a current universe on 8-stable system from 594 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 595 error in the first kernel build phase. A new config on those old 596 systems will fix that problem for older versions of -current. 597 59820101228: 599 The TCP stack has been modified to allow Khelp modules to interact with 600 it via helper hook points and store per-connection data in the TCP 601 control block. Bump __FreeBSD_version to 900029. User space tools that 602 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 603 be recompiled. 604 60520101114: 606 Generic IEEE 802.3 annex 31B full duplex flow control support has been 607 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 608 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 609 to take advantage of it instead of using custom implementations. This 610 means that these drivers now no longer unconditionally advertise 611 support for flow control but only do so if flow control is a selected 612 media option. This was implemented in the generic support that way in 613 order to allow flow control to be switched on and off via ifconfig(8) 614 with the PHY specific default to typically off in order to protect 615 from unwanted effects. Consequently, if you used flow control with 616 one of the above mentioned drivers you now need to explicitly enable 617 it, for example via: 618 ifconfig bge0 media auto mediaopt flowcontrol 619 620 Along with the above mentioned changes generic support for setting 621 1000baseT master mode also has been added and brgphy(4), ciphy(4), 622 e1000phy(4) as well as ip1000phy(4) have been converted to take 623 advantage of it. This means that these drivers now no longer take the 624 link0 parameter for selecting master mode but the master media option 625 has to be used instead, for example like in the following: 626 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 627 628 Selection of master mode now is also available with all other PHY 629 drivers supporting 1000baseT. 630 63120101111: 632 The TCP stack has received a significant update to add support for 633 modularised congestion control and generally improve the clarity of 634 congestion control decisions. Bump __FreeBSD_version to 900025. User 635 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 636 sockstat) need to be recompiled. 637 63820101002: 639 The man(1) utility has been replaced by a new version that no longer 640 uses /etc/manpath.config. Please consult man.conf(5) for how to 641 migrate local entries to the new format. 642 64320100928: 644 The copyright strings printed by login(1) and sshd(8) at the time of a 645 new connection have been removed to follow other operating systems and 646 upstream sshd. 647 64820100915: 649 A workaround for a fixed ld bug has been removed in kernel code, 650 so make sure that your system ld is built from sources after 651 revision 210245 from 2010-07-19 (r211583 if building head kernel 652 on stable/8, r211584 for stable/7; both from 2010-08-21). 653 A symptom of incorrect ld version is different addresses for 654 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 655 65620100913: 657 The $ipv6_prefer variable in rc.conf(5) has been split into 658 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 659 660 The $ip6addrctl_policy is a variable to choose a pre-defined 661 address selection policy set by ip6addrctl(8). A value 662 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 663 default is "AUTO". 664 665 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 666 flag (see an entry of 20090926) is set on an interface with no 667 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 668 security reason. If you want IPv6 link-local address on all 669 interfaces by default, set this to "YES". 670 671 The old ipv6_prefer="YES" is equivalent to 672 ipv6_activate_all_interfaces="YES" and 673 ip6addrctl_policy="ipv6_prefer". 674 67520100913: 676 DTrace has grown support for userland tracing. Due to this, DTrace is 677 now i386 and amd64 only. 678 dtruss(1) is now installed by default on those systems and a new 679 kernel module is needed for userland tracing: fasttrap. 680 No changes to your kernel config file are necessary to enable 681 userland tracing, but you might consider adding 'STRIP=' and 682 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 683 to have informative userland stack traces in DTrace (ustack). 684 68520100725: 686 The acpi_aiboost(4) driver has been removed in favor of the new 687 aibs(4) driver. You should update your kernel configuration file. 688 68920100722: 690 BSD grep has been imported to the base system and it is built by 691 default. It is completely BSD licensed, highly GNU-compatible, uses 692 less memory than its GNU counterpart and has a small codebase. 693 However, it is slower than its GNU counterpart, which is mostly 694 noticeable for larger searches, for smaller ones it is measurable 695 but not significant. The reason is complex, the most important factor 696 is that we lack a modern and efficient regex library and GNU 697 overcomes this by optimizing the searches internally. Future work 698 on improving the regex performance is planned, for the meantime, 699 users that need better performance, can build GNU grep instead by 700 setting the WITH_GNU_GREP knob. 701 70220100713: 703 Due to the import of powerpc64 support, all existing powerpc kernel 704 configuration files must be updated with a machine directive like this: 705 machine powerpc powerpc 706 707 In addition, an updated config(8) is required to build powerpc kernels 708 after this change. 709 71020100713: 711 A new version of ZFS (version 15) has been merged to -HEAD. 712 This version uses a python library for the following subcommands: 713 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 714 For full functionality of these commands the following port must 715 be installed: sysutils/py-zfs 716 71720100429: 718 'vm_page's are now hashed by physical address to an array of mutexes. 719 Currently this is only used to serialize access to hold_count. Over 720 time the page queue mutex will be peeled away. This changes the size 721 of pmap on every architecture. And requires all callers of vm_page_hold 722 and vm_page_unhold to be updated. 723 72420100402: 725 WITH_CTF can now be specified in src.conf (not recommended, there 726 are some problems with static executables), make.conf (would also 727 affect ports which do not use GNU make and do not override the 728 compile targets) or in the kernel config (via "makeoptions 729 WITH_CTF=yes"). 730 When WITH_CTF was specified there before this was silently ignored, 731 so make sure that WITH_CTF is not used in places which could lead 732 to unwanted behavior. 733 73420100311: 735 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 736 to allow 32-bit compatibility on non-x86 platforms. All kernel 737 configurations on amd64 and ia64 platforms using these options must 738 be modified accordingly. 739 74020100113: 741 The utmp user accounting database has been replaced with utmpx, 742 the user accounting interface standardized by POSIX. 743 Unfortunately the semantics of utmp and utmpx don't match, 744 making it practically impossible to support both interfaces. 745 The user accounting database is used by tools like finger(1), 746 last(1), talk(1), w(1) and ac(8). 747 748 All applications in the base system use utmpx. This means only 749 local binaries (e.g. from the ports tree) may still use these 750 utmp database files. These applications must be rebuilt to make 751 use of utmpx. 752 753 After the system has been upgraded, it is safe to remove the old 754 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 755 assuming their contents is of no importance anymore. Old wtmp 756 databases can only be used by last(1) and ac(8) after they have 757 been converted to the new format using wtmpcvt(1). 758 75920100108: 760 Introduce the kernel thread "deadlock resolver" (which can be enabled 761 via the DEADLKRES option, see NOTES for more details) and the 762 sleepq_type() function for sleepqueues. 763 76420091202: 765 The rc.firewall and rc.firewall6 were unified, and 766 rc.firewall6 and rc.d/ip6fw were removed. 767 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 768 variables are obsoleted. Instead, the following new rc 769 variables are added to rc.d/ipfw: 770 771 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 772 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 773 firewall_simple_onet_ipv6, firewall_trusted_ipv6 774 775 The meanings correspond to the relevant IPv4 variables. 776 77720091125: 778 8.0-RELEASE. 779 78020091113: 781 The default terminal emulation for syscons(4) has been changed 782 from cons25 to xterm on all platforms except pc98. This means 783 that the /etc/ttys file needs to be updated to ensure correct 784 operation of applications on the console. 785 786 The terminal emulation style can be toggled per window by using 787 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 788 options can be used to change the compile-time default back to 789 cons25. 790 791 To prevent graphical artifacts, make sure the TERM environment 792 variable is set to match the terminal emulation that is being 793 performed by syscons(4). 794 79520091109: 796 The layout of the structure ieee80211req_scan_result has changed. 797 Applications that require wireless scan results (e.g. ifconfig(8)) 798 from net80211 need to be recompiled. 799 800 Applications such as wpa_supplicant(8) may require a full world 801 build without using NO_CLEAN in order to get synchronized with the 802 new structure. 803 80420091025: 805 The iwn(4) driver has been updated to support the 5000 and 5150 series. 806 There's one kernel module for each firmware. Adding "device iwnfw" 807 to the kernel configuration file means including all three firmware 808 images inside the kernel. If you want to include just the one for 809 your wireless card, use the devices iwn4965fw, iwn5000fw or 810 iwn5150fw. 811 81220090926: 813 The rc.d/network_ipv6, IPv6 configuration script has been integrated 814 into rc.d/netif. The changes are the following: 815 816 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 817 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 818 Note that both variables need the "inet6" keyword at the head. 819 820 Do not set $ipv6_network_interfaces manually if you do not 821 understand what you are doing. It is not needed in most cases. 822 823 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 824 they are obsolete. 825 826 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 827 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 828 829 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 830 all configured interfaces have "inet6 accept_rtadv" in the 831 $ifconfig_IF_ipv6. These are for backward compatibility. 832 833 3. A new variable $ipv6_prefer has been added. If NO, IPv6 834 functionality of interfaces with no corresponding 835 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 836 and the default address selection policy of ip6addrctl(8) 837 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 838 Note that if you want to configure IPv6 functionality on the 839 disabled interfaces after boot, first you need to clear the flag by 840 using ifconfig(8) like: 841 842 ifconfig em0 inet6 -ifdisabled 843 844 If YES, the default address selection policy is set as 845 IPv6-preferred. 846 847 The default value of $ipv6_prefer is NO. 848 849 4. If your system need to receive Router Advertisement messages, 850 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 851 scripts automatically invoke rtsol(8) when the interface becomes 852 UP. The Router Advertisement messages are used for SLAAC 853 (State-Less Address AutoConfiguration). 854 85520090922: 856 802.11s D3.03 support was committed. This is incompatible with the 857 previous code, which was based on D3.0. 858 85920090912: 860 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 861 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 862 control whether accepting Router Advertisement messages or not. 863 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 864 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 865 The ifconfig(8) utility now supports these flags. 866 86720090910: 868 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 869 mount(8) and -a option for df(1) to see them. 870 87120090825: 872 The old tunable hw.bus.devctl_disable has been superseded by 873 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 874 replaced by hw.bus.devctl_queue=0. The default for this new tunable 875 is 1000. 876 87720090813: 878 Remove the option STOP_NMI. The default action is now to use NMI only 879 for KDB via the newly introduced function stop_cpus_hard() and 880 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 881 88220090803: 883 The stable/8 branch created in subversion. This corresponds to the 884 RELENG_8 branch in CVS. 885 88620090719: 887 Bump the shared library version numbers for all libraries that do not 888 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 889 __FreeBSD_version to 800105. 890 89120090714: 892 Due to changes in the implementation of virtual network stack support, 893 all network-related kernel modules must be recompiled. As this change 894 breaks the ABI, bump __FreeBSD_version to 800104. 895 89620090713: 897 The TOE interface to the TCP syncache has been modified to remove 898 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 899 The cxgb driver is the only TOE consumer affected by this change, and 900 needs to be recompiled along with the kernel. As this change breaks 901 the ABI, bump __FreeBSD_version to 800103. 902 90320090712: 904 Padding has been added to struct tcpcb, sackhint and tcpstat in 905 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 906 maintaining the ABI. However, this change breaks the ABI, so bump 907 __FreeBSD_version to 800102. User space tools that rely on the size of 908 any of these structs (e.g. sockstat) need to be recompiled. 909 91020090630: 911 The NFS_LEGACYRPC option has been removed along with the old kernel 912 RPC implementation that this option selected. Kernel configurations 913 may need to be adjusted. 914 91520090629: 916 The network interface device nodes at /dev/net/<interface> have been 917 removed. All ioctl operations can be performed the normal way using 918 routing sockets. The kqueue functionality can generally be replaced 919 with routing sockets. 920 92120090628: 922 The documentation from the FreeBSD Documentation Project (Handbook, 923 FAQ, etc.) is now installed via packages by sysinstall(8) and under 924 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 925 92620090624: 927 The ABI of various structures related to the SYSV IPC API have been 928 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 929 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 930 800100. 931 93220090622: 933 Layout of struct vnet has changed as routing related variables were 934 moved to their own Vimage module. Modules need to be recompiled. Bump 935 __FreeBSD_version to 800099. 936 93720090619: 938 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 939 respectively. As long as no more than 16 groups per process are used, 940 no changes should be visible. When more than 16 groups are used, old 941 binaries may fail if they call getgroups() or getgrouplist() with 942 statically sized storage. Recompiling will work around this, but 943 applications should be modified to use dynamically allocated storage 944 for group arrays as POSIX.1-2008 does not cap an implementation's 945 number of supported groups at NGROUPS_MAX+1 as previous versions did. 946 947 NFS and portalfs mounts may also be affected as the list of groups is 948 truncated to 16. Users of NFS who use more than 16 groups, should 949 take care that negative group permissions are not used on the exported 950 file systems as they will not be reliable unless a GSSAPI based 951 authentication method is used. 952 95320090616: 954 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 955 option compiles in the support for adaptive spinning for lockmgrs 956 which want to enable it. The lockinit() function now accepts the flag 957 LK_ADAPTIVE in order to make the lock object subject to adaptive 958 spinning when both held in write and read mode. 959 96020090613: 961 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 962 changed. User applications that use this ioctl need to be rebuilt. 963 96420090611: 965 The layout of struct thread has changed. Kernel and modules need to 966 be rebuilt. 967 96820090608: 969 The layout of structs ifnet, domain, protosw and vnet_net has changed. 970 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 971 97220090602: 973 window(1) has been removed from the base system. It can now be 974 installed from ports. The port is called misc/window. 975 97620090601: 977 The way we are storing and accessing `routing table' entries has 978 changed. Programs reading the FIB, like netstat, need to be 979 re-compiled. 980 98120090601: 982 A new netisr implementation has been added for FreeBSD 8. Network 983 file system modules, such as igmp, ipdivert, and others, should be 984 rebuilt. 985 Bump __FreeBSD_version to 800096. 986 98720090530: 988 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 989 more valid. 990 99120090530: 992 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 993 Bump __FreeBSD_version to 800094. 994 99520090529: 996 Add mnt_xflag field to 'struct mount'. File system modules need to be 997 rebuilt. 998 Bump __FreeBSD_version to 800093. 999 100020090528: 1001 The compiling option ADAPTIVE_SX has been retired while it has been 1002 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1003 The KPI for sx_init_flags() changes as accepting flags: 1004 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1005 been introduced in order to handle the reversed logic. 1006 Bump __FreeBSD_version to 800092. 1007 100820090527: 1009 Add support for hierarchical jails. Remove global securelevel. 1010 Bump __FreeBSD_version to 800091. 1011 101220090523: 1013 The layout of struct vnet_net has changed, therefore modules 1014 need to be rebuilt. 1015 Bump __FreeBSD_version to 800090. 1016 101720090523: 1018 The newly imported zic(8) produces a new format in the output. Please 1019 run tzsetup(8) to install the newly created data to /etc/localtime. 1020 102120090520: 1022 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1023 hw.usb.* and is now consistent again with previous releases. 1024 102520090520: 1026 802.11 monitor mode support was revised and driver api's were changed. 1027 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1028 of DLT_IEEE802_11. No user-visible data structures were changed but 1029 applications that use DLT_IEEE802_11 may require changes. 1030 Bump __FreeBSD_version to 800088. 1031 103220090430: 1033 The layout of the following structs has changed: sysctl_oid, 1034 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1035 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1036 panics may be experienced. World rebuild is required for 1037 correctly checking networking state from userland. 1038 Bump __FreeBSD_version to 800085. 1039 104020090429: 1041 MLDv2 and Source-Specific Multicast (SSM) have been merged 1042 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1043 The implementation of SSM within FreeBSD's IPv6 stack closely 1044 follows the IPv4 implementation. 1045 1046 For kernel developers: 1047 1048 * The most important changes are that the ip6_output() and 1049 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1050 and this lock has been downgraded to a non-recursive mutex. 1051 1052 * As with the changes to the IPv4 stack to support SSM, filtering 1053 of inbound multicast traffic must now be performed by transport 1054 protocols within the IPv6 stack. This does not apply to TCP and 1055 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1056 1057 * The KPIs used by IPv6 multicast are similar to those used by 1058 the IPv4 stack, with the following differences: 1059 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1060 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1061 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1062 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1063 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1064 for MLDv1 have an additional 'timer' argument which is used to 1065 jitter the initial membership report for the solicited-node 1066 multicast membership on-link. 1067 * This is not strictly needed for MLDv2, which already jitters 1068 its report transmissions. However, the 'timer' argument is 1069 preserved in case MLDv1 is active on the interface. 1070 1071 * The KAME linked-list based IPv6 membership implementation has 1072 been refactored to use a vector similar to that used by the IPv4 1073 stack. 1074 Code which maintains a list of its own multicast memberships 1075 internally, e.g. carp, has been updated to reflect the new 1076 semantics. 1077 1078 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1079 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1080 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1081 implementation constraint which needs to be addressed in HEAD. 1082 1083 For application developers: 1084 1085 * The changes are broadly similar to those made for the IPv4 1086 stack. 1087 1088 * The use of IPv4 and IPv6 multicast socket options on the same 1089 socket, using mapped addresses, HAS NOT been tested or supported. 1090 1091 * There are a number of issues with the implementation of various 1092 IPv6 multicast APIs which need to be resolved in the API surface 1093 before the implementation is fully compatible with KAME userland 1094 use, and these are mostly to do with interface index treatment. 1095 1096 * The literature available discusses the use of either the delta / ASM 1097 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1098 using setsourcefilter(3)/getsourcefilter(3). For more information 1099 please refer to RFC 3768, 'Socket Interface Extensions for 1100 Multicast Source Filters'. 1101 1102 * Applications which use the published RFC 3678 APIs should be fine. 1103 1104 For systems administrators: 1105 1106 * The mtest(8) utility has been refactored to support IPv6, in 1107 addition to IPv4. Interface addresses are no longer accepted 1108 as arguments, their names must be used instead. The utility 1109 will map the interface name to its first IPv4 address as 1110 returned by getifaddrs(3). 1111 1112 * The ifmcstat(8) utility has also been updated to print the MLDv2 1113 endpoint state and source filter lists via sysctl(3). 1114 1115 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1116 loopback of IPv6 multicast datagrams by default; it defaults to 1 1117 to preserve the existing behaviour. Disabling multicast loopback is 1118 recommended for optimal system performance. 1119 1120 * The IPv6 MROUTING code has been changed to examine this sysctl 1121 instead of attempting to perform a group lookup before looping 1122 back forwarded datagrams. 1123 1124 Bump __FreeBSD_version to 800084. 1125 112620090422: 1127 Implement low-level Bluetooth HCI API. 1128 Bump __FreeBSD_version to 800083. 1129 113020090419: 1131 The layout of struct malloc_type, used by modules to register new 1132 memory allocation types, has changed. Most modules will need to 1133 be rebuilt or panics may be experienced. 1134 Bump __FreeBSD_version to 800081. 1135 113620090415: 1137 Anticipate overflowing inp_flags - add inp_flags2. 1138 This changes most offsets in inpcb, so checking v4 connection 1139 state will require a world rebuild. 1140 Bump __FreeBSD_version to 800080. 1141 114220090415: 1143 Add an llentry to struct route and struct route_in6. Modules 1144 embedding a struct route will need to be recompiled. 1145 Bump __FreeBSD_version to 800079. 1146 114720090414: 1148 The size of rt_metrics_lite and by extension rtentry has changed. 1149 Networking administration apps will need to be recompiled. 1150 The route command now supports show as an alias for get, weighting 1151 of routes, sticky and nostick flags to alter the behavior of stateful 1152 load balancing. 1153 Bump __FreeBSD_version to 800078. 1154 115520090408: 1156 Do not use Giant for kbdmux(4) locking. This is wrong and 1157 apparently causing more problems than it solves. This will 1158 re-open the issue where interrupt handlers may race with 1159 kbdmux(4) in polling mode. Typical symptoms include (but 1160 not limited to) duplicated and/or missing characters when 1161 low level console functions (such as gets) are used while 1162 interrupts are enabled (for example geli password prompt, 1163 mountroot prompt etc.). Disabling kbdmux(4) may help. 1164 116520090407: 1166 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1167 kernel modules referencing any of the above need to be recompiled. 1168 Bump __FreeBSD_version to 800075. 1169 117020090320: 1171 GEOM_PART has become the default partition slicer for storage devices, 1172 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1173 introduces some changes: 1174 1175 MSDOS/EBR: the devices created from MSDOS extended partition entries 1176 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1177 to devices with offset-based names. fstabs may need to be modified. 1178 1179 BSD: the "geometry does not match label" warning is harmless in most 1180 cases but it points to problems in file system misalignment with 1181 disk geometry. The "c" partition is now implicit, covers the whole 1182 top-level drive and cannot be (mis)used by users. 1183 1184 General: Kernel dumps are now not allowed to be written to devices 1185 whose partition types indicate they are meant to be used for file 1186 systems (or, in case of MSDOS partitions, as something else than 1187 the "386BSD" type). 1188 1189 Most of these changes date approximately from 200812. 1190 119120090319: 1192 The uscanner(4) driver has been removed from the kernel. This follows 1193 Linux removing theirs in 2.6 and making libusb the default interface 1194 (supported by sane). 1195 119620090319: 1197 The multicast forwarding code has been cleaned up. netstat(1) 1198 only relies on KVM now for printing bandwidth upcall meters. 1199 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1200 ip6_mroute_mod respectively. The config(5) options for statically 1201 compiling this code remain the same, i.e. 'options MROUTING'. 1202 120320090315: 1204 Support for the IFF_NEEDSGIANT network interface flag has been 1205 removed, which means that non-MPSAFE network device drivers are no 1206 longer supported. In particular, if_ar, if_sr, and network device 1207 drivers from the old (legacy) USB stack can no longer be built or 1208 used. 1209 121020090313: 1211 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1212 a bunch of new language catalog files have also been added. 1213 This means that some common libc messages are now localized and 1214 they depend on the LC_MESSAGES environmental variable. 1215 121620090313: 1217 The k8temp(4) driver has been renamed to amdtemp(4) since 1218 support for Family 10 and Family 11 CPU families was added. 1219 122020090309: 1221 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1222 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1223 1224 For kernel developers, the most important changes are that the 1225 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1226 and this lock has been downgraded to a non-recursive mutex. 1227 1228 Transport protocols (UDP, Raw IP) are now responsible for filtering 1229 inbound multicast traffic according to group membership and source 1230 filters. The imo_multicast_filter() KPI exists for this purpose. 1231 Transports which do not use multicast (SCTP, TCP) already reject 1232 multicast by default. Forwarding and receive performance may improve 1233 as a mutex acquisition is no longer needed in the ip_input() 1234 low-level input path. in_addmulti() and in_delmulti() are shimmed 1235 to new KPIs which exist to support SSM in-kernel. 1236 1237 For application developers, it is recommended that loopback of 1238 multicast datagrams be disabled for best performance, as this 1239 will still cause the lock to be taken for each looped-back 1240 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1241 be tuned to 0 to disable loopback by default; it defaults to 1 1242 to preserve the existing behaviour. 1243 1244 For systems administrators, to obtain best performance with 1245 multicast reception and multiple groups, it is always recommended 1246 that a card with a suitably precise hash filter is used. Hash 1247 collisions will still result in the lock being taken within the 1248 transport protocol input path to check group membership. 1249 1250 If deploying FreeBSD in an environment with IGMP snooping switches, 1251 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1252 enabled; this forces 224.0.0.0/24 group membership to be announced 1253 via IGMP. 1254 1255 The size of 'struct igmpstat' has changed; netstat needs to be 1256 recompiled to reflect this. 1257 Bump __FreeBSD_version to 800070. 1258 125920090309: 1260 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1261 updated to use it. This requires a buildworld/installworld in order to 1262 update the library and dependencies (usbconfig, etc). Its advisable to 1263 rebuild all ports which uses libusb. More specific directions are given 1264 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1265 libusb are no longer required and can be removed. 1266 126720090302: 1268 A workaround is committed to allow the creation of System V shared 1269 memory segment of size > 2 GB on the 64-bit architectures. 1270 Due to a limitation of the existing ABI, the shm_segsz member 1271 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1272 wrong for large segments. Note that limits must be explicitly 1273 raised to allow such segments to be created. 1274 127520090301: 1276 The layout of struct ifnet has changed, requiring a rebuild of all 1277 network device driver modules. 1278 127920090227: 1280 The /dev handling for the new USB stack has changed, a 1281 buildworld/installworld is required for libusb20. 1282 128320090223: 1284 The new USB2 stack has now been permanently moved in and all kernel and 1285 module names reverted to their previous values (eg, usb, ehci, ohci, 1286 ums, ...). The old usb stack can be compiled in by prefixing the name 1287 with the letter 'o', the old usb modules have been removed. 1288 Updating entry 20090216 for xorg and 20090215 for libmap may still 1289 apply. 1290 129120090217: 1292 The rc.conf(5) option if_up_delay has been renamed to 1293 defaultroute_delay to better reflect its purpose. If you have 1294 customized this setting in /etc/rc.conf you need to update it to 1295 use the new name. 1296 129720090216: 1298 xorg 7.4 wants to configure its input devices via hald which does not 1299 yet work with USB2. If the keyboard/mouse does not work in xorg then 1300 add 1301 Option "AllowEmptyInput" "off" 1302 to your ServerLayout section. This will cause X to use the configured 1303 kbd and mouse sections from your xorg.conf. 1304 130520090215: 1306 The GENERIC kernels for all architectures now default to the new USB2 1307 stack. No kernel config options or code have been removed so if a 1308 problem arises please report it and optionally revert to the old USB 1309 stack. If you are loading USB kernel modules or have a custom kernel 1310 that includes GENERIC then ensure that usb names are also changed over, 1311 eg uftdi -> usb2_serial_ftdi. 1312 1313 Older programs linked against the ports libusb 0.1 need to be 1314 redirected to the new stack's libusb20. /etc/libmap.conf can 1315 be used for this: 1316 # Map old usb library to new one for usb2 stack 1317 libusb-0.1.so.8 libusb20.so.1 1318 131920090209: 1320 All USB ethernet devices now attach as interfaces under the name ueN 1321 (eg. ue0). This is to provide a predictable name as vendors often 1322 change usb chipsets in a product without notice. 1323 132420090203: 1325 The ichsmb(4) driver has been changed to require SMBus slave 1326 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1327 All of the other SMBus controller drivers require left-justified 1328 slave addresses, so this change makes all the drivers provide the 1329 same interface. 1330 133120090201: 1332 INET6 statistics (struct ip6stat) was updated. 1333 netstat(1) needs to be recompiled. 1334 133520090119: 1336 NTFS has been removed from GENERIC kernel on amd64 to match 1337 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1338 will load ntfs.ko module automatically when NTFS support is 1339 actually needed, unless ntfs.ko is not installed or security 1340 level prohibits loading kernel modules. If either is the case, 1341 "options NTFS" has to be added into kernel config. 1342 134320090115: 1344 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1345 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1346 800061. User space tools that rely on the size of struct tcpcb in 1347 tcp_var.h (e.g. sockstat) need to be recompiled. 1348 134920081225: 1350 ng_tty(4) module updated to match the new TTY subsystem. 1351 Due to API change, user-level applications must be updated. 1352 New API support added to mpd5 CVS and expected to be present 1353 in next mpd5.3 release. 1354 135520081219: 1356 With __FreeBSD_version 800060 the makefs tool is part of 1357 the base system (it was a port). 1358 135920081216: 1360 The afdata and ifnet locks have been changed from mutexes to 1361 rwlocks, network modules will need to be re-compiled. 1362 136320081214: 1364 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1365 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1366 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1367 architecture and 40 bytes on 64-bit architecture. The userland 1368 applications "arp" and "ndp" have been updated accordingly. 1369 The output from "netstat -r" shows only routing entries and 1370 none of the L2 information. 1371 137220081130: 1373 __FreeBSD_version 800057 marks the switchover from the 1374 binary ath hal to source code. Users must add the line: 1375 1376 options AH_SUPPORT_AR5416 1377 1378 to their kernel config files when specifying: 1379 1380 device ath_hal 1381 1382 The ath_hal module no longer exists; the code is now compiled 1383 together with the driver in the ath module. It is now 1384 possible to tailor chip support (i.e. reduce the set of chips 1385 and thereby the code size); consult ath_hal(4) for details. 1386 138720081121: 1388 __FreeBSD_version 800054 adds memory barriers to 1389 <machine/atomic.h>, new interfaces to ifnet to facilitate 1390 multiple hardware transmit queues for cards that support 1391 them, and a lock-less ring-buffer implementation to 1392 enable drivers to more efficiently manage queueing of 1393 packets. 1394 139520081117: 1396 A new version of ZFS (version 13) has been merged to -HEAD. 1397 This version has zpool attribute "listsnapshots" off by 1398 default, which means "zfs list" does not show snapshots, 1399 and is the same as Solaris behavior. 1400 140120081028: 1402 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1403 140420081009: 1405 The uhci, ohci, ehci and slhci USB Host controller drivers have 1406 been put into separate modules. If you load the usb module 1407 separately through loader.conf you will need to load the 1408 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1409 controller add the following to loader.conf: 1410 1411 uhci_load="YES" 1412 ehci_load="YES" 1413 141420081009: 1415 The ABI used by the PMC toolset has changed. Please keep 1416 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1417 sync. 1418 141920081009: 1420 atapci kernel module now includes only generic PCI ATA 1421 driver. AHCI driver moved to ataahci kernel module. 1422 All vendor-specific code moved into separate kernel modules: 1423 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1424 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1425 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1426 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1427 142820080820: 1429 The TTY subsystem of the kernel has been replaced by a new 1430 implementation, which provides better scalability and an 1431 improved driver model. Most common drivers have been migrated to 1432 the new TTY subsystem, while others have not. The following 1433 drivers have not yet been ported to the new TTY layer: 1434 1435 PCI/ISA: 1436 cy, digi, rc, rp, sio 1437 1438 USB: 1439 ubser, ucycom 1440 1441 Line disciplines: 1442 ng_h4, ng_tty, ppp, sl, snp 1443 1444 Adding these drivers to your kernel configuration file shall 1445 cause compilation to fail. 1446 144720080818: 1448 ntpd has been upgraded to 4.2.4p5. 1449 145020080801: 1451 OpenSSH has been upgraded to 5.1p1. 1452 1453 For many years, FreeBSD's version of OpenSSH preferred DSA 1454 over RSA for host and user authentication keys. With this 1455 upgrade, we've switched to the vendor's default of RSA over 1456 DSA. This may cause upgraded clients to warn about unknown 1457 host keys even for previously known hosts. Users should 1458 follow the usual procedure for verifying host keys before 1459 accepting the RSA key. 1460 1461 This can be circumvented by setting the "HostKeyAlgorithms" 1462 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1463 command line. 1464 1465 Please note that the sequence of keys offered for 1466 authentication has been changed as well. You may want to 1467 specify IdentityFile in a different order to revert this 1468 behavior. 1469 147020080713: 1471 The sio(4) driver has been removed from the i386 and amd64 1472 kernel configuration files. This means uart(4) is now the 1473 default serial port driver on those platforms as well. 1474 1475 To prevent collisions with the sio(4) driver, the uart(4) driver 1476 uses different names for its device nodes. This means the 1477 onboard serial port will now most likely be called "ttyu0" 1478 instead of "ttyd0". You may need to reconfigure applications to 1479 use the new device names. 1480 1481 When using the serial port as a boot console, be sure to update 1482 /boot/device.hints and /etc/ttys before booting the new kernel. 1483 If you forget to do so, you can still manually specify the hints 1484 at the loader prompt: 1485 1486 set hint.uart.0.at="isa" 1487 set hint.uart.0.port="0x3F8" 1488 set hint.uart.0.flags="0x10" 1489 set hint.uart.0.irq="4" 1490 boot -s 1491 149220080609: 1493 The gpt(8) utility has been removed. Use gpart(8) to partition 1494 disks instead. 1495 149620080603: 1497 The version that Linuxulator emulates was changed from 2.4.2 1498 to 2.6.16. If you experience any problems with Linux binaries 1499 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1500 if it fixes the problem contact emulation mailing list. 1501 150220080525: 1503 ISDN4BSD (I4B) was removed from the src tree. You may need to 1504 update a your kernel configuration and remove relevant entries. 1505 150620080509: 1507 I have checked in code to support multiple routing tables. 1508 See the man pages setfib(1) and setfib(2). 1509 This is a hopefully backwards compatible version, 1510 but to make use of it you need to compile your kernel 1511 with options ROUTETABLES=2 (or more up to 16). 1512 151320080420: 1514 The 802.11 wireless support was redone to enable multi-bss 1515 operation on devices that are capable. The underlying device 1516 is no longer used directly but instead wlanX devices are 1517 cloned with ifconfig. This requires changes to rc.conf files. 1518 For example, change: 1519 ifconfig_ath0="WPA DHCP" 1520 to 1521 wlans_ath0=wlan0 1522 ifconfig_wlan0="WPA DHCP" 1523 see rc.conf(5) for more details. In addition, mergemaster of 1524 /etc/rc.d is highly recommended. Simultaneous update of userland 1525 and kernel wouldn't hurt either. 1526 1527 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1528 modules were merged into the base wlan module. All references 1529 to these modules (e.g. in kernel config files) must be removed. 1530 153120080408: 1532 psm(4) has gained write(2) support in native operation level. 1533 Arbitrary commands can be written to /dev/psm%d and status can 1534 be read back from it. Therefore, an application is responsible 1535 for status validation and error recovery. It is a no-op in 1536 other operation levels. 1537 153820080312: 1539 Support for KSE threading has been removed from the kernel. To 1540 run legacy applications linked against KSE libmap.conf may 1541 be used. The following libmap.conf may be used to ensure 1542 compatibility with any prior release: 1543 1544 libpthread.so.1 libthr.so.1 1545 libpthread.so.2 libthr.so.2 1546 libkse.so.3 libthr.so.3 1547 154820080301: 1549 The layout of struct vmspace has changed. This affects libkvm 1550 and any executables that link against libkvm and use the 1551 kvm_getprocs() function. In particular, but not exclusively, 1552 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1553 The effects are minimal, but it's advisable to upgrade world 1554 nonetheless. 1555 155620080229: 1557 The latest em driver no longer has support in it for the 1558 82575 adapter, this is now moved to the igb driver. The 1559 split was done to make new features that are incompatible 1560 with older hardware easier to do. 1561 156220080220: 1563 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1564 likewise the kernel option is now GEOM_LINUX_LVM. 1565 156620080211: 1567 The default NFS mount mode has changed from UDP to TCP for 1568 increased reliability. If you rely on (insecurely) NFS 1569 mounting across a firewall you may need to update your 1570 firewall rules. 1571 157220080208: 1573 Belatedly note the addition of m_collapse for compacting 1574 mbuf chains. 1575 157620080126: 1577 The fts(3) structures have been changed to use adequate 1578 integer types for their members and so to be able to cope 1579 with huge file trees. The old fts(3) ABI is preserved 1580 through symbol versioning in libc, so third-party binaries 1581 using fts(3) should still work, although they will not take 1582 advantage of the extended types. At the same time, some 1583 third-party software might fail to build after this change 1584 due to unportable assumptions made in its source code about 1585 fts(3) structure members. Such software should be fixed 1586 by its vendor or, in the worst case, in the ports tree. 1587 FreeBSD_version 800015 marks this change for the unlikely 1588 case that a portable fix is impossible. 1589 159020080123: 1591 To upgrade to -current after this date, you must be running 1592 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1593 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1594 159520071128: 1596 The ADAPTIVE_GIANT kernel option has been retired because its 1597 functionality is the default now. 1598 159920071118: 1600 The AT keyboard emulation of sunkbd(4) has been turned on 1601 by default. In order to make the special symbols of the Sun 1602 keyboards driven by sunkbd(4) work under X these now have 1603 to be configured the same way as Sun USB keyboards driven 1604 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1605 1606 Option "XkbLayout" "us" 1607 Option "XkbRules" "xorg" 1608 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1609 161020071024: 1611 It has been decided that it is desirable to provide ABI 1612 backwards compatibility to the FreeBSD 4/5/6 versions of the 1613 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1614 broken with the introduction of PCI domain support (see the 1615 20070930 entry). Unfortunately, this required the ABI of 1616 PCIOCGETCONF to be broken again in order to be able to 1617 provide backwards compatibility to the old version of that 1618 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1619 again. As for prominent ports this affects neither pciutils 1620 nor xorg-server this time, the hal port needs to be rebuilt 1621 however. 1622 162320071020: 1624 The misnamed kthread_create() and friends have been renamed 1625 to kproc_create() etc. Many of the callers already 1626 used kproc_start().. 1627 I will return kthread_create() and friends in a while 1628 with implementations that actually create threads, not procs. 1629 Renaming corresponds with version 800002. 1630 163120071010: 1632 RELENG_7 branched. 1633 1634COMMON ITEMS: 1635 1636 General Notes 1637 ------------- 1638 Avoid using make -j when upgrading. While generally safe, there are 1639 sometimes problems using -j to upgrade. If your upgrade fails with 1640 -j, please try again without -j. From time to time in the past there 1641 have been problems using -j with buildworld and/or installworld. This 1642 is especially true when upgrading between "distant" versions (eg one 1643 that cross a major release boundary or several minor releases, or when 1644 several months have passed on the -current branch). 1645 1646 Sometimes, obscure build problems are the result of environment 1647 poisoning. This can happen because the make utility reads its 1648 environment when searching for values for global variables. To run 1649 your build attempts in an "environmental clean room", prefix all make 1650 commands with 'env -i '. See the env(1) manual page for more details. 1651 1652 When upgrading from one major version to another it is generally best 1653 to upgrade to the latest code in the currently installed branch first, 1654 then do an upgrade to the new branch. This is the best-tested upgrade 1655 path, and has the highest probability of being successful. Please try 1656 this approach before reporting problems with a major version upgrade. 1657 1658 ZFS notes 1659 --------- 1660 When upgrading the boot ZFS pool to a new version, always follow 1661 these two steps: 1662 1663 1.) recompile and reinstall the ZFS boot loader and boot block 1664 (this is part of "make buildworld" and "make installworld") 1665 1666 2.) update the ZFS boot block on your boot drive 1667 1668 The following example updates the ZFS boot block on the first 1669 partition (freebsd-boot) of a GPT partitioned drive ad0: 1670 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1671 1672 Non-boot pools do not need these updates. 1673 1674 To build a kernel 1675 ----------------- 1676 If you are updating from a prior version of FreeBSD (even one just 1677 a few days old), you should follow this procedure. It is the most 1678 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1679 1680 make kernel-toolchain 1681 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1682 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1683 1684 To test a kernel once 1685 --------------------- 1686 If you just want to boot a kernel once (because you are not sure 1687 if it works, or if you want to boot a known bad kernel to provide 1688 debugging information) run 1689 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1690 nextboot -k testkernel 1691 1692 To just build a kernel when you know that it won't mess you up 1693 -------------------------------------------------------------- 1694 This assumes you are already running a CURRENT system. Replace 1695 ${arch} with the architecture of your machine (e.g. "i386", 1696 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1697 1698 cd src/sys/${arch}/conf 1699 config KERNEL_NAME_HERE 1700 cd ../compile/KERNEL_NAME_HERE 1701 make depend 1702 make 1703 make install 1704 1705 If this fails, go to the "To build a kernel" section. 1706 1707 To rebuild everything and install it on the current system. 1708 ----------------------------------------------------------- 1709 # Note: sometimes if you are running current you gotta do more than 1710 # is listed here if you are upgrading from a really old current. 1711 1712 <make sure you have good level 0 dumps> 1713 make buildworld 1714 make kernel KERNCONF=YOUR_KERNEL_HERE 1715 [1] 1716 <reboot in single user> [3] 1717 mergemaster -p [5] 1718 make installworld 1719 mergemaster -i [4] 1720 make delete-old [6] 1721 <reboot> 1722 1723 1724 To cross-install current onto a separate partition 1725 -------------------------------------------------- 1726 # In this approach we use a separate partition to hold 1727 # current's root, 'usr', and 'var' directories. A partition 1728 # holding "/", "/usr" and "/var" should be about 2GB in 1729 # size. 1730 1731 <make sure you have good level 0 dumps> 1732 <boot into -stable> 1733 make buildworld 1734 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1735 <maybe newfs current's root partition> 1736 <mount current's root partition on directory ${CURRENT_ROOT}> 1737 make installworld DESTDIR=${CURRENT_ROOT} 1738 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1739 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1740 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1741 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1742 <reboot into current> 1743 <do a "native" rebuild/install as described in the previous section> 1744 <maybe install compatibility libraries from ports/misc/compat*> 1745 <reboot> 1746 1747 1748 To upgrade in-place from stable to current 1749 ---------------------------------------------- 1750 <make sure you have good level 0 dumps> 1751 make buildworld [9] 1752 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1753 [1] 1754 <reboot in single user> [3] 1755 mergemaster -p [5] 1756 make installworld 1757 mergemaster -i [4] 1758 make delete-old [6] 1759 <reboot> 1760 1761 Make sure that you've read the UPDATING file to understand the 1762 tweaks to various things you need. At this point in the life 1763 cycle of current, things change often and you are on your own 1764 to cope. The defaults can also change, so please read ALL of 1765 the UPDATING entries. 1766 1767 Also, if you are tracking -current, you must be subscribed to 1768 freebsd-current@freebsd.org. Make sure that before you update 1769 your sources that you have read and understood all the recent 1770 messages there. If in doubt, please track -stable which has 1771 much fewer pitfalls. 1772 1773 [1] If you have third party modules, such as vmware, you 1774 should disable them at this point so they don't crash your 1775 system on reboot. 1776 1777 [3] From the bootblocks, boot -s, and then do 1778 fsck -p 1779 mount -u / 1780 mount -a 1781 cd src 1782 adjkerntz -i # if CMOS is wall time 1783 Also, when doing a major release upgrade, it is required that 1784 you boot into single user mode to do the installworld. 1785 1786 [4] Note: This step is non-optional. Failure to do this step 1787 can result in a significant reduction in the functionality of the 1788 system. Attempting to do it by hand is not recommended and those 1789 that pursue this avenue should read this file carefully, as well 1790 as the archives of freebsd-current and freebsd-hackers mailing lists 1791 for potential gotchas. The -U option is also useful to consider. 1792 See mergemaster(8) for more information. 1793 1794 [5] Usually this step is a noop. However, from time to time 1795 you may need to do this if you get unknown user in the following 1796 step. It never hurts to do it all the time. You may need to 1797 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1798 install) after the buildworld before this step if you last updated 1799 from [78]-stable or 9-stable before 20130430. 1800 1801 [6] This only deletes old files and directories. Old libraries 1802 can be deleted by "make delete-old-libs", but you have to make 1803 sure that no program is using those libraries anymore. 1804 1805 [8] In order to have a kernel that can run the 4.x binaries needed to 1806 do an installworld, you must include the COMPAT_FREEBSD4 option in 1807 your kernel. Failure to do so may leave you with a system that is 1808 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1809 required to run the 5.x binaries on more recent kernels. And so on 1810 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1811 1812 Make sure that you merge any new devices from GENERIC since the 1813 last time you updated your kernel config file. 1814 1815 [9] When checking out sources, you must include the -P flag to have 1816 cvs prune empty directories. 1817 1818 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1819 "?=" instead of the "=" assignment operator, so that buildworld can 1820 override the CPUTYPE if it needs to. 1821 1822 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1823 not on the command line, or in /etc/make.conf. buildworld will 1824 warn if it is improperly defined. 1825FORMAT: 1826 1827This file contains a list, in reverse chronological order, of major 1828breakages in tracking -current. It is not guaranteed to be a complete 1829list of such breakages, and only contains entries since October 10, 2007. 1830If you need to see UPDATING entries from before that date, you will need 1831to fetch an UPDATING file from an older FreeBSD release. 1832 1833Copyright information: 1834 1835Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1836 1837Redistribution, publication, translation and use, with or without 1838modification, in full or in part, in any form or format of this 1839document are permitted without further permission from the author. 1840 1841THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1842IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1843WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1844DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1845INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1846(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1847SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1848HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1849STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1850IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1851POSSIBILITY OF SUCH DAMAGE. 1852 1853Contact Warner Losh if you have any questions about your use of 1854this document. 1855 1856$FreeBSD: releng/9.3/UPDATING 288385 2015-09-29 18:07:18Z delphij $ 1857