UPDATING revision 298770
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 1420150429 p40 FreeBSD-SA-16:16.ntp 15 16 Fix multiple vulnerabilities of ntp. 17 1820160316 p39 FreeBSD-SA-16:14.openssh-xauth 19 FreeBSD-SA-16:15.sysarch 20 21 Fix OpenSSH xauth(1) command injection. [SA-16:14] 22 Fix incorrect argument validation in sysarch(2). [SA-16:15] 23 2420160310 p38 FreeBSD-SA-16:13.bind 25 FreeBSD-SA-16:12.openssl [revised] 26 27 Fix multiple vulnerabilities of BIND. [SA-16:13] 28 29 Fix a regression with OpenSSL patch. [SA-16:12] 30 3120160303 p37 FreeBSD-SA-16:12.openssl 32 33 Fix multiple vulnerabilities of OpenSSL. 34 3520160130 p36 FreeBSD-SA-16:11.openssl 36 37 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 38 3920160127 p35 FreeBSD-SA-16:08.bind 40 FreeBSD-SA-16:09.ntp 41 FreeBSD-SA-16:10.linux 42 43 Fix BIND remote denial of service vulnerability. [SA-16:08] 44 45 Fix multiple vulnerabilities of ntp. [SA-16:09] 46 47 Fix Linux compatibility layer issetugid(2) system call 48 vulnerability. [SA-16:10] 49 5020160114 p34 FreeBSD-SA-16:07.openssh 51 52 Fix OpenSSH client information leak. [SA-16:07] 53 5420160114 p33 FreeBSD-EN-16:02.pf 55 FreeBSD-EN-16:03.yplib 56 FreeBSD-SA-16:01.sctp 57 FreeBSD-SA-16:02.ntp 58 FreeBSD-SA-16:03.linux 59 FreeBSD-SA-16:04.linux 60 FreeBSD-SA-16:05.tcp 61 FreeBSD-SA-16:06.bsnmpd 62 63 Fix pf(4) generating bad TCP checksums. [EN-16:02] 64 Fix infinite loop in YP/NIS client library. [EN-16:03] 65 Fix remote denial of service in SCTP. [SA-16:01] 66 Update NTP to 4.2.8p5. [SA-16:02] 67 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 68 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 69 Fix crash in TCP MD5 signatures. [SA-16:05] 70 Fix insecure default permissions for snmpd.config. [SA-16:06] 71 7220151216 p32 FreeBSD-SA-15:27.bind 73 Fix BIND remote denial of service vulnerability. [SA-15:27] 74 7520151205 p31 FreeBSD-SA-15:26.openssl 76 77 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 78 7920151104 p30 FreeBSD-SA-15:25.ntp [revised] 80 FreeBSD-EN-15:19.kqueue 81 FreeBSD-EN-15:20.vm 82 83 Fix regression of ntpq(8) utility exiting due to trap 6 in 84 9.3-RELEASE-p29. [SA-15:25] 85 86 Fix regression in ntpd(8) lacking support for RAWDCF reference 87 clock in 9.3-RELEASE-p29. [SA-15:25] 88 89 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 90 91 Fix applications exiting due to segmentation violation on a correct 92 memory address. [EN-15:20] 93 9420151026: p29 FreeBSD-SA-15:25.ntp 95 96 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 97 98 The configuration file syntax has been changed, thus mergemaster 99 run is recommended. Now the "kod" parameter requires "limited" 100 parameter. If the ntp.conf is not updated, the ntpd will run 101 successfully, but with KoD disabled. 102 10320151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 104 Revised patch to address a regression that prevents NIS from working. 105 10620150929: p27 FreeBSD-SA-15:24.rpcbind 107 108 Fix rpcbind(8) remote denial of service. [SA-15:24] 109 11020150916: p26 FreeBSD-EN-15:18.pkg 111 112 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 113 11420150902: p25 FreeBSD-SA-15:23.bind 115 116 Fix BIND remote denial of service vulnerability. [SA-15:23] 117 11820150825: p24 FreeBSD-SA-15:21.amd64 119 FreeBSD-SA-15:22.openssh 120 FreeBSD-EN-15:15.pkg 121 122 Fix local privilege escalation in IRET handler. [SA-15:21] 123 124 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 125 126 Fix insufficient check of unsupported pkg(7) signature methods. 127 [EN-15:15] 128 12920150818: p23 FreeBSD-SA-15:20.expat 130 131 Fix multiple integer overflows in expat (libbsdxml) XML parser. 132 [SA-15:20] 133 13420150805: p22 FreeBSD-SA-15:19.routed 135 136 Fix routed remote denial of service vulnerability. 137 13820150728: p21 FreeBSD-SA-15:15.tcp 139 FreeBSD-SA-15:16.openssh 140 FreeBSD-SA-15:17.bind 141 142 Fix resource exhaustion in TCP reassembly. [SA-15:15] 143 144 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 145 146 Fix BIND remote denial of service vulnerability. [SA-15:17] 147 14820150721: p20 FreeBSD-SA-15:13.tcp 149 150 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 151 [SA-15:13] 152 15320150707: p19 FreeBSD-SA-15:11.bind 154 Fix BIND resolver remote denial of service when validating. 155 15620150630: p18 FreeBSD-EN-15:08.sendmail [revised] 157 FreeBSD-EN-15:09.xlocale 158 159 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 160 161 Fix inconsistency between locale and rune locale states. 162 [EN-15:09] 163 16420150618: p17 FreeBSD-EN-15:08.sendmail 165 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 166 16720150612: p16 FreeBSD-SA-15:10.openssl 168 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 169 17020150609: p15 FreeBSD-EN-15:06.file 171 172 Updated base system file(1) to 5.22 to address multiple denial 173 of service issues. 174 17520150513: p14 FreeBSD-EN-15:04.freebsd-update 176 177 Fix bug with freebsd-update(8) that does not ensure the previous 178 upgrade was completed. [EN-15:04] 179 18020150407: p13 FreeBSD-SA-15:04.igmp [revised] 181 FreeBSD-SA-15:07.ntp 182 FreeBSD-SA-15:09.ipv6 183 184 Improved patch for SA-15:04.igmp. 185 186 Fix multiple vulnerabilities of ntp. [SA-15:07] 187 188 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 189 19020150320: p12 191 Fix patch for SA-15:06.openssl. 192 19320150319: p11 FreeBSD-SA-15:06.openssl 194 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 195 19620150225: p10 FreeBSD-SA-15:04.igmp 197 FreeBSD-SA-15:05.bind 198 FreeBSD-EN-15:01.vt 199 FreeBSD-EN-15:02.openssl 200 FreeBSD-EN-15:03.freebsd-update 201 202 Fix integer overflow in IGMP protocol. [SA-15:04] 203 204 Fix BIND remote denial of service vulnerability. [SA-15:05] 205 206 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 207 208 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 209 210 Fix freebsd-update libraries update ordering issue. [EN-15:03] 211 21220150127: p9 FreeBSD-SA-15:02.kmem 213 FreeBSD-SA-15:03.sctp 214 215 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 216 vulnerability. [SA-15:02] 217 218 Fix SCTP stream reset vulnerability. [SA-15:03] 219 22020150114: p8 FreeBSD-SA-15:01.openssl 221 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 222 22320141223: p7 FreeBSD-SA-14:31.ntp 224 FreeBSD-EN-14:13.freebsd-update 225 226 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 227 Fix directory deletion issue in freebsd-update. [EN-14:13] 228 22920141210: p6 FreeBSD-SA-14:28.file 230 FreeBSD-SA-14:29.bind 231 232 Fix multiple vulnerabilities in file(1) and libmagic(3). 233 [SA-14:28] 234 235 Fix BIND remote denial of service vulnerability. [SA-14:29] 236 23720141104: p5 FreeBSD-SA-14:25.setlogin 238 FreeBSD-SA-14:26.ftp 239 FreeBSD-EN-14:12.zfs 240 241 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 242 [SA-14:25] 243 244 Fix remote command execution in ftp(1). [SA-14:26] 245 246 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 247 24820141022: p4 FreeBSD-EN-14:10.tzdata 249 FreeBSD-EN-14:11.crypt 250 251 Time zone data file update. [EN-14:10] 252 253 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 254 25520141021: p3 FreeBSD-SA-14:20.rtsold 256 FreeBSD-SA-14:21.routed 257 FreeBSD-SA-14:22.namei 258 FreeBSD-SA-14:23.openssl 259 260 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 261 262 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 263 264 Fix memory leak in sandboxed namei lookup. [SA-14:22] 265 266 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 267 26820140916: p2 FreeBSD-SA-14:19.tcp 269 Fix Denial of Service in TCP packet processing. [SA-14:19] 270 27120140909: p1 FreeBSD-SA-14:18.openssl 272 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 273 27420140716: 275 9.3-RELEASE. 276 27720140608: 278 On i386 and amd64 systems, the onifconsole flag is now set by default 279 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 280 as a login TTY if it is set in the bootloader as an active kernel 281 console. No changes in behavior should result otherwise. To revert to 282 the previous behavior, set ttyu0 to "off" in /etc/ttys. 283 28420140512: 285 Clang and llvm have been upgraded to 3.4.1 release. 286 28720140321: 288 Clang and llvm have been upgraded to 3.4 release. 289 29020140216: 291 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 292 been deprecated and will not be part of FreeBSD 11.0 and later 293 releases. If you use this driver, please consider switching to 294 the nfe(4) driver instead. 295 29620131216: 297 The behavior of gss_pseudo_random() for the krb5 mechanism 298 has changed, for applications requesting a longer random string 299 than produced by the underlying enctype's pseudo-random() function. 300 In particular, the random string produced from a session key of 301 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 302 be different at the 17th octet and later, after this change. 303 The counter used in the PRF+ construction is now encoded as a 304 big-endian integer in accordance with RFC 4402. 305 __FreeBSD_version is bumped to 902505. 306 30720130930: 308 9.2-RELEASE. 309 31020130823: 311 Behavior of devfs rules path matching has been changed. 312 Pattern is now always matched against fully qualified devfs 313 path and slash characters must be explicitly matched by 314 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 315 subdirectories must be reviewed. 316 31720130705: 318 hastctl(8)'s `status' command output changed to terse one-liner format. 319 Scripts using this should switch to `list' command or be rewritten. 320 32120130618: 322 Fix a bug that allowed a tracing process (e.g. gdb) to write 323 to a memory-mapped file in the traced process's address space 324 even if neither the traced process nor the tracing process had 325 write access to that file. 326 32720130605: 328 Added ZFS TRIM support which is enabled by default. To disable 329 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 330 331 Creating new ZFS pools and adding new devices to existing pools 332 first performs a full device level TRIM which can take a significant 333 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 334 to disable this behaviour. 335 336 ZFS TRIM requires the underlying device support BIO_DELETE which 337 is currently provided by methods such as ATA TRIM and SCSI UNMAP 338 via CAM, which are typically supported by SSD's. 339 340 Stats for ZFS TRIM can be monitored by looking at the sysctl's 341 under kstat.zfs.misc.zio_trim. 342 34320130524: 344 `list' command has been added to hastctl(8). For now, it is full 345 equivalent of `status' command. 346 WARNING: in the near future the output of hastctl's status command 347 will change to more terse format. If you use `hastctl status' 348 for parsing in your scripts, switch to `hastctl list'. 349 35020130430: 351 The mergemaster command now uses the default MAKEOBJDIRPREFIX 352 rather than creating it's own in the temporary directory in 353 order allow access to bootstrapped versions of tools such as 354 install and mtree. When upgrading from version of FreeBSD where 355 the install command does not support -l, you will need to 356 install a new mergemaster command if mergemaster -p is required. 357 This can be accomplished with the command (cd src/usr.sbin/mergemaster 358 && make install). 359 360 Due to the use of the new -l option to install(1) during build 361 and install, you must take care not to directly set the INSTALL 362 make variable in your /etc/make.conf, /etc/src.conf, or on the 363 command line. If you wish to use the -C flag for all installs 364 you may be able to add INSTALL+=-C to /etc/make.conf or 365 /etc/src.conf. 366 36720130429: 368 Fix a bug that allows NFS clients to issue READDIR on files. 369 37020130315: 371 The install(1) option -M has changed meaning and now takes an 372 argument that is a file or path to append logs to. In the 373 unlikely event that -M was the last option on the command line 374 and the command line contained at least two files and a target 375 directory the first file will have logs appended to it. The -M 376 option served little practical purpose in the last decade so it's 377 used expected to be extremely rare. 378 37920130225: 380 A new compression method (lz4) has been merged to. Please refer to 381 zpool-features(7) for more information. 382 383 Please refer to the "ZFS notes" section of this file for information 384 on upgrading boot ZFS pools. 385 38620121224: 387 The VFS KBI was changed with the merge of several nullfs 388 optimizations and fixes. All filesystem modules must be 389 recompiled. 390 39120121218: 392 With the addition of auditdistd(8), a new auditdistd user is now 393 depended on during installworld. "mergemaster -p" can be used to add 394 the user prior to installworld, as documented in the handbook. 395 39620121205: 397 9.1-RELEASE. 398 39920121129: 400 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 401 Starting with this version the old system of ZFS pool versioning 402 is superseded by "feature flags". This concept enables forward 403 compatibility against certain future changes in functionality of ZFS 404 pools. The first two read-only compatible "feature flags" for ZFS 405 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 406 For more information read the new zpool-features(7) manual page. 407 Please refer to the "ZFS notes" section of this file for information 408 on upgrading boot ZFS pools. 409 41020121114: 411 The commit introducing bsd.compiler.mk breaks the traditional 412 building of kernels before this point. Add -m ${SRC}/share/mk 413 (for the right value of SRC) to your command lines to work 414 around; update your useland to a point after this; or use the 415 buildkernel/installkernel top-level targets. See also 20120829. 416 41720121102: 418 The IPFIREWALL_FORWARD kernel option has been removed. Its 419 functionality now turned on by default. 420 42120120913: 422 The random(4) support for the VIA hardware random number 423 generator (`PADLOCK') is no longer enabled unconditionally. 424 Add the PADLOCK_RNG option in the custom kernel config if 425 needed. The GENERIC kernels on i386 and amd64 do include the 426 option, so the change only affects the custom kernel 427 configurations. 428 42920120829: 430 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 431 the traditional method, you must update your system with an installworld 432 before the kernel will build. The documented make buildkernel/installkernel 433 interfaces (coupled with fresh make kernel-toolchain) continue to work. 434 43520120727: 436 The sparc64 ZFS loader has been changed to no longer try to auto- 437 detect ZFS providers based on diskN aliases but now requires these 438 to be explicitly listed in the OFW boot-device environment variable. 439 44020120422: 441 Now unix domain sockets behave "as expected" on nullfs(5). Previously 442 nullfs(5) did not pass through all behaviours to the underlying layer, 443 as a result if we bound to a socket on the lower layer we could connect 444 only to the lower path; if we bound to the upper layer we could connect 445 only to the upper path. The new behavior is one can connect to both the 446 lower and the upper paths regardless what layer path one binds to. 447 44820120109: 449 The acpi_wmi(4) status device /dev/wmistat has been renamed to 450 /dev/wmistat0. 451 45220120106: 453 A new VOP_ADVISE() was added to support posix_fadvise(2). All 454 filesystem modules must be recompiled. 455 45620120106: 457 The interface of the VOP_VPTOCNP(9) changed, now the returned 458 vnode shall be referenced, previously it was required to be 459 only held. All in-tree filesystems are converted. 460 46120120106: 462 9.0-RELEASE. 463 46420111101: 465 The broken amd(4) driver has been replaced with esp(4) in the amd64, 466 i386 and pc98 GENERIC kernel configuration files. 467 46820110913: 469 This commit modifies vfs_register() so that it uses a hash 470 calculation to set vfc_typenum, which is enabled by default. 471 The first time a system is booted after this change, the 472 vfc_typenum values will change for all file systems. The 473 main effect of this is a change to the NFS server file handles 474 for file systems that use vfc_typenum in their fsid, such as ZFS. 475 It will, however, prevent vfc_typenum from changing when file 476 systems are loaded in a different order for subsequent reboots. 477 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 478 until you are ready to remount all NFS clients after a reboot. 479 48020110828: 481 Bump the shared library version numbers for libraries that 482 do not use symbol versioning, have changed the ABI compared 483 to stable/8 and which shared library version was not bumped. 484 Done as part of 9.0-RELEASE cycle. 485 48620110815: 487 During the merge of Capsicum features, the fget(9) KPI was modified. 488 This may require the rebuilding of out-of-tree device drivers -- 489 issues have been reported specifically with the nVidia device driver. 490 __FreeBSD_version is bumped to 900041. 491 492 Also, there is a period between 20110811 and 20110814 where the 493 special devices /dev/{stdin,stdout,stderr} did not work correctly. 494 Building world from a kernel during that window may not work. 495 49620110628: 497 The packet filter (pf) code has been updated to OpenBSD 4.5. 498 You need to update userland tools to be in sync with kernel. 499 This update breaks backward compatibility with earlier pfsync(4) 500 versions. Care must be taken when updating redundant firewall setups. 501 50220110608: 503 The following sysctls and tunables are retired on x86 platforms: 504 machdep.hlt_cpus 505 machdep.hlt_logical_cpus 506 The following sysctl is retired: 507 machdep.hyperthreading_allowed 508 The sysctls were supposed to provide a way to dynamically offline and 509 online selected CPUs on x86 platforms, but the implementation has not 510 been reliable especially with SCHED_ULE scheduler. 511 machdep.hyperthreading_allowed tunable is still available to ignore 512 hyperthreading CPUs at OS level. 513 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 514 where X is an APIC ID of a CPU. Be advised, though, that disabling 515 CPUs in non-uniform fashion will result in non-uniform topology and 516 may lead to sub-optimal system performance with SCHED_ULE, which is 517 a default scheduler. 518 51920110607: 520 cpumask_t type is retired and cpuset_t is used in order to describe 521 a mask of CPUs. 522 52320110531: 524 Changes to ifconfig(8) for dynamic address family detection mandate 525 that you are running a kernel of 20110525 or later. Make sure to 526 follow the update procedure to boot a new kernel before installing 527 world. 528 52920110513: 530 Support for sun4v architecture is officially dropped 531 53220110503: 533 Several KPI breaking changes have been committed to the mii(4) layer, 534 the PHY drivers and consequently some Ethernet drivers using mii(4). 535 This means that miibus.ko and the modules of the affected Ethernet 536 drivers need to be recompiled. 537 538 Note to kernel developers: Given that the OUI bit reversion problem 539 was fixed as part of these changes all mii(4) commits related to OUIs, 540 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 541 handling, no longer can be merged verbatim to stable/8 and previous 542 branches. 543 54420110430: 545 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 546 into their kernel configurations along with 'device pci'. 547 54820110427: 549 The default NFS client is now the new NFS client, so fstype "newnfs" 550 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 551 Although mounts via fstype "nfs" will usually work without userland 552 changes, it is recommended that the mount(8) and mount_nfs(8) 553 commands be rebuilt from sources and that a link to mount_nfs called 554 mount_oldnfs be created. The new client is compiled into the 555 kernel with "options NFSCL" and this is needed for diskless root 556 file systems. The GENERIC kernel configs have been changed to use 557 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 558 To use the regular/old client, you can "mount -t oldnfs ...". For 559 a diskless root file system, you must also include a line like: 560 561 vfs.root.mountfrom="oldnfs:" 562 563 in the boot/loader.conf on the root fs on the NFS server to make 564 a diskless root fs use the old client. 565 56620110424: 567 The GENERIC kernels for all architectures now default to the new 568 CAM-based ATA stack. It means that all legacy ATA drivers were 569 removed and replaced by respective CAM drivers. If you are using 570 ATA device names in /etc/fstab or other places, make sure to update 571 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 572 where 'Y's are the sequential numbers starting from zero for each type 573 in order of detection, unless configured otherwise with tunables, 574 see cam(4)). There will be symbolic links created in /dev/ to map 575 old adX devices to the respective adaY. They should provide basic 576 compatibility for file systems mounting in most cases, but they do 577 not support old user-level APIs and do not have respective providers 578 in GEOM. Consider using updated management tools with new device names. 579 580 It is possible to load devices ahci, ata, siis and mvs as modules, 581 but option ATA_CAM should remain in kernel configuration to make ata 582 module work as CAM driver supporting legacy ATA controllers. Device ata 583 still can be used in modular fashion (atacore + ...). Modules atadisk 584 and atapi* are not used and won't affect operation in ATA_CAM mode. 585 Note that to use CAM-based ATA kernel should include CAM devices 586 scbus, pass, da (or explicitly ada), cd and optionally others. All of 587 them are parts of the cam module. 588 589 ataraid(4) functionality is now supported by the RAID GEOM class. 590 To use it you can load geom_raid kernel module and use graid(8) tool 591 for management. Instead of /dev/arX device names, use /dev/raid/rX. 592 593 No kernel config options or code have been removed, so if a problem 594 arises, please report it and optionally revert to the old ATA stack. 595 In order to do it you can remove from the kernel config: 596 options ATA_CAM 597 device ahci 598 device mvs 599 device siis 600 , and instead add back: 601 device atadisk # ATA disk drives 602 device ataraid # ATA RAID drives 603 device atapicd # ATAPI CDROM drives 604 device atapifd # ATAPI floppy drives 605 device atapist # ATAPI tape drives 606 60720110423: 608 The default NFS server has been changed to the new server, which 609 was referred to as the experimental server. If you need to switch 610 back to the old NFS server, you must now put the "-o" option on 611 both the mountd and nfsd commands. This can be done using the 612 mountd_flags and nfs_server_flags rc.conf variables until an 613 update to the rc scripts is committed, which is coming soon. 614 61520110418: 616 The GNU Objective-C runtime library (libobjc), and other Objective-C 617 related components have been removed from the base system. If you 618 require an Objective-C library, please use one of the available ports. 619 62020110331: 621 ath(4) has been split into bus- and device- modules. if_ath contains 622 the HAL, the TX rate control and the network device code. if_ath_pci 623 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 624 contains the AHB glue. Users need to load both if_ath_pci and if_ath 625 in order to use ath on everything else. 626 627 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 628 need to load if_ath and if_ath_pci for ath(4) operation. 629 63020110314: 631 As part of the replacement of sysinstall, the process of building 632 release media has changed significantly. For details, please re-read 633 release(7), which has been updated to reflect the new build process. 634 63520110218: 636 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 637 is the last available version under GPLv2. It brings a number of new 638 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 639 4.1 and SSE 4.2), better support for powerpc64, a number of new 640 directives, and lots of other small improvements. See the ChangeLog 641 file in contrib/binutils for the full details. 642 64320110218: 644 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 645 compliant, and will now use half of hash for authentication. 646 This will break interoperability with all stacks (including all 647 actual FreeBSD versions) who implement 648 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 649 authentication). 650 The only workaround with such peers is to use another HMAC 651 algorithm for IPsec ("phase 2") authentication. 652 65320110207: 654 Remove the uio_yield prototype and symbol. This function has 655 been misnamed since it was introduced and should not be 656 globally exposed with this name. The equivalent functionality 657 is now available using kern_yield(curthread->td_user_pri). 658 The function remains undocumented. 659 66020110112: 661 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 662 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 663 for scalar sysctls is defined but disabled. Code that needs 664 UQUAD to pass the type checking that must compile on older 665 systems where the define is not present can check against 666 __FreeBSD_version >= 900030. 667 668 The system dialog(1) has been replaced with a new version previously 669 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 670 with the previous version, but the libdialog associated with it has 671 a largely incompatible API. As such, the original version of libdialog 672 will be kept temporarily as libodialog, until its base system consumers 673 are replaced or updated. Bump __FreeBSD_version to 900030. 674 67520110103: 676 If you are trying to run make universe on a -stable system, and you get 677 the following warning: 678 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 679 unknown. config(8) likely too old." 680 or something similar to it, then you must upgrade your -stable system 681 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 682 stable/8) or build the config from the latest stable/8 branch and 683 install it on your system. 684 685 Prior to this date, building a current universe on 8-stable system from 686 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 687 error in the first kernel build phase. A new config on those old 688 systems will fix that problem for older versions of -current. 689 69020101228: 691 The TCP stack has been modified to allow Khelp modules to interact with 692 it via helper hook points and store per-connection data in the TCP 693 control block. Bump __FreeBSD_version to 900029. User space tools that 694 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 695 be recompiled. 696 69720101114: 698 Generic IEEE 802.3 annex 31B full duplex flow control support has been 699 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 700 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 701 to take advantage of it instead of using custom implementations. This 702 means that these drivers now no longer unconditionally advertise 703 support for flow control but only do so if flow control is a selected 704 media option. This was implemented in the generic support that way in 705 order to allow flow control to be switched on and off via ifconfig(8) 706 with the PHY specific default to typically off in order to protect 707 from unwanted effects. Consequently, if you used flow control with 708 one of the above mentioned drivers you now need to explicitly enable 709 it, for example via: 710 ifconfig bge0 media auto mediaopt flowcontrol 711 712 Along with the above mentioned changes generic support for setting 713 1000baseT master mode also has been added and brgphy(4), ciphy(4), 714 e1000phy(4) as well as ip1000phy(4) have been converted to take 715 advantage of it. This means that these drivers now no longer take the 716 link0 parameter for selecting master mode but the master media option 717 has to be used instead, for example like in the following: 718 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 719 720 Selection of master mode now is also available with all other PHY 721 drivers supporting 1000baseT. 722 72320101111: 724 The TCP stack has received a significant update to add support for 725 modularised congestion control and generally improve the clarity of 726 congestion control decisions. Bump __FreeBSD_version to 900025. User 727 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 728 sockstat) need to be recompiled. 729 73020101002: 731 The man(1) utility has been replaced by a new version that no longer 732 uses /etc/manpath.config. Please consult man.conf(5) for how to 733 migrate local entries to the new format. 734 73520100928: 736 The copyright strings printed by login(1) and sshd(8) at the time of a 737 new connection have been removed to follow other operating systems and 738 upstream sshd. 739 74020100915: 741 A workaround for a fixed ld bug has been removed in kernel code, 742 so make sure that your system ld is built from sources after 743 revision 210245 from 2010-07-19 (r211583 if building head kernel 744 on stable/8, r211584 for stable/7; both from 2010-08-21). 745 A symptom of incorrect ld version is different addresses for 746 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 747 74820100913: 749 The $ipv6_prefer variable in rc.conf(5) has been split into 750 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 751 752 The $ip6addrctl_policy is a variable to choose a pre-defined 753 address selection policy set by ip6addrctl(8). A value 754 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 755 default is "AUTO". 756 757 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 758 flag (see an entry of 20090926) is set on an interface with no 759 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 760 security reason. If you want IPv6 link-local address on all 761 interfaces by default, set this to "YES". 762 763 The old ipv6_prefer="YES" is equivalent to 764 ipv6_activate_all_interfaces="YES" and 765 ip6addrctl_policy="ipv6_prefer". 766 76720100913: 768 DTrace has grown support for userland tracing. Due to this, DTrace is 769 now i386 and amd64 only. 770 dtruss(1) is now installed by default on those systems and a new 771 kernel module is needed for userland tracing: fasttrap. 772 No changes to your kernel config file are necessary to enable 773 userland tracing, but you might consider adding 'STRIP=' and 774 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 775 to have informative userland stack traces in DTrace (ustack). 776 77720100725: 778 The acpi_aiboost(4) driver has been removed in favor of the new 779 aibs(4) driver. You should update your kernel configuration file. 780 78120100722: 782 BSD grep has been imported to the base system and it is built by 783 default. It is completely BSD licensed, highly GNU-compatible, uses 784 less memory than its GNU counterpart and has a small codebase. 785 However, it is slower than its GNU counterpart, which is mostly 786 noticeable for larger searches, for smaller ones it is measurable 787 but not significant. The reason is complex, the most important factor 788 is that we lack a modern and efficient regex library and GNU 789 overcomes this by optimizing the searches internally. Future work 790 on improving the regex performance is planned, for the meantime, 791 users that need better performance, can build GNU grep instead by 792 setting the WITH_GNU_GREP knob. 793 79420100713: 795 Due to the import of powerpc64 support, all existing powerpc kernel 796 configuration files must be updated with a machine directive like this: 797 machine powerpc powerpc 798 799 In addition, an updated config(8) is required to build powerpc kernels 800 after this change. 801 80220100713: 803 A new version of ZFS (version 15) has been merged to -HEAD. 804 This version uses a python library for the following subcommands: 805 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 806 For full functionality of these commands the following port must 807 be installed: sysutils/py-zfs 808 80920100429: 810 'vm_page's are now hashed by physical address to an array of mutexes. 811 Currently this is only used to serialize access to hold_count. Over 812 time the page queue mutex will be peeled away. This changes the size 813 of pmap on every architecture. And requires all callers of vm_page_hold 814 and vm_page_unhold to be updated. 815 81620100402: 817 WITH_CTF can now be specified in src.conf (not recommended, there 818 are some problems with static executables), make.conf (would also 819 affect ports which do not use GNU make and do not override the 820 compile targets) or in the kernel config (via "makeoptions 821 WITH_CTF=yes"). 822 When WITH_CTF was specified there before this was silently ignored, 823 so make sure that WITH_CTF is not used in places which could lead 824 to unwanted behavior. 825 82620100311: 827 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 828 to allow 32-bit compatibility on non-x86 platforms. All kernel 829 configurations on amd64 and ia64 platforms using these options must 830 be modified accordingly. 831 83220100113: 833 The utmp user accounting database has been replaced with utmpx, 834 the user accounting interface standardized by POSIX. 835 Unfortunately the semantics of utmp and utmpx don't match, 836 making it practically impossible to support both interfaces. 837 The user accounting database is used by tools like finger(1), 838 last(1), talk(1), w(1) and ac(8). 839 840 All applications in the base system use utmpx. This means only 841 local binaries (e.g. from the ports tree) may still use these 842 utmp database files. These applications must be rebuilt to make 843 use of utmpx. 844 845 After the system has been upgraded, it is safe to remove the old 846 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 847 assuming their contents is of no importance anymore. Old wtmp 848 databases can only be used by last(1) and ac(8) after they have 849 been converted to the new format using wtmpcvt(1). 850 85120100108: 852 Introduce the kernel thread "deadlock resolver" (which can be enabled 853 via the DEADLKRES option, see NOTES for more details) and the 854 sleepq_type() function for sleepqueues. 855 85620091202: 857 The rc.firewall and rc.firewall6 were unified, and 858 rc.firewall6 and rc.d/ip6fw were removed. 859 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 860 variables are obsoleted. Instead, the following new rc 861 variables are added to rc.d/ipfw: 862 863 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 864 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 865 firewall_simple_onet_ipv6, firewall_trusted_ipv6 866 867 The meanings correspond to the relevant IPv4 variables. 868 86920091125: 870 8.0-RELEASE. 871 87220091113: 873 The default terminal emulation for syscons(4) has been changed 874 from cons25 to xterm on all platforms except pc98. This means 875 that the /etc/ttys file needs to be updated to ensure correct 876 operation of applications on the console. 877 878 The terminal emulation style can be toggled per window by using 879 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 880 options can be used to change the compile-time default back to 881 cons25. 882 883 To prevent graphical artifacts, make sure the TERM environment 884 variable is set to match the terminal emulation that is being 885 performed by syscons(4). 886 88720091109: 888 The layout of the structure ieee80211req_scan_result has changed. 889 Applications that require wireless scan results (e.g. ifconfig(8)) 890 from net80211 need to be recompiled. 891 892 Applications such as wpa_supplicant(8) may require a full world 893 build without using NO_CLEAN in order to get synchronized with the 894 new structure. 895 89620091025: 897 The iwn(4) driver has been updated to support the 5000 and 5150 series. 898 There's one kernel module for each firmware. Adding "device iwnfw" 899 to the kernel configuration file means including all three firmware 900 images inside the kernel. If you want to include just the one for 901 your wireless card, use the devices iwn4965fw, iwn5000fw or 902 iwn5150fw. 903 90420090926: 905 The rc.d/network_ipv6, IPv6 configuration script has been integrated 906 into rc.d/netif. The changes are the following: 907 908 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 909 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 910 Note that both variables need the "inet6" keyword at the head. 911 912 Do not set $ipv6_network_interfaces manually if you do not 913 understand what you are doing. It is not needed in most cases. 914 915 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 916 they are obsolete. 917 918 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 919 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 920 921 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 922 all configured interfaces have "inet6 accept_rtadv" in the 923 $ifconfig_IF_ipv6. These are for backward compatibility. 924 925 3. A new variable $ipv6_prefer has been added. If NO, IPv6 926 functionality of interfaces with no corresponding 927 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 928 and the default address selection policy of ip6addrctl(8) 929 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 930 Note that if you want to configure IPv6 functionality on the 931 disabled interfaces after boot, first you need to clear the flag by 932 using ifconfig(8) like: 933 934 ifconfig em0 inet6 -ifdisabled 935 936 If YES, the default address selection policy is set as 937 IPv6-preferred. 938 939 The default value of $ipv6_prefer is NO. 940 941 4. If your system need to receive Router Advertisement messages, 942 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 943 scripts automatically invoke rtsol(8) when the interface becomes 944 UP. The Router Advertisement messages are used for SLAAC 945 (State-Less Address AutoConfiguration). 946 94720090922: 948 802.11s D3.03 support was committed. This is incompatible with the 949 previous code, which was based on D3.0. 950 95120090912: 952 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 953 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 954 control whether accepting Router Advertisement messages or not. 955 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 956 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 957 The ifconfig(8) utility now supports these flags. 958 95920090910: 960 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 961 mount(8) and -a option for df(1) to see them. 962 96320090825: 964 The old tunable hw.bus.devctl_disable has been superseded by 965 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 966 replaced by hw.bus.devctl_queue=0. The default for this new tunable 967 is 1000. 968 96920090813: 970 Remove the option STOP_NMI. The default action is now to use NMI only 971 for KDB via the newly introduced function stop_cpus_hard() and 972 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 973 97420090803: 975 The stable/8 branch created in subversion. This corresponds to the 976 RELENG_8 branch in CVS. 977 97820090719: 979 Bump the shared library version numbers for all libraries that do not 980 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 981 __FreeBSD_version to 800105. 982 98320090714: 984 Due to changes in the implementation of virtual network stack support, 985 all network-related kernel modules must be recompiled. As this change 986 breaks the ABI, bump __FreeBSD_version to 800104. 987 98820090713: 989 The TOE interface to the TCP syncache has been modified to remove 990 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 991 The cxgb driver is the only TOE consumer affected by this change, and 992 needs to be recompiled along with the kernel. As this change breaks 993 the ABI, bump __FreeBSD_version to 800103. 994 99520090712: 996 Padding has been added to struct tcpcb, sackhint and tcpstat in 997 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 998 maintaining the ABI. However, this change breaks the ABI, so bump 999 __FreeBSD_version to 800102. User space tools that rely on the size of 1000 any of these structs (e.g. sockstat) need to be recompiled. 1001 100220090630: 1003 The NFS_LEGACYRPC option has been removed along with the old kernel 1004 RPC implementation that this option selected. Kernel configurations 1005 may need to be adjusted. 1006 100720090629: 1008 The network interface device nodes at /dev/net/<interface> have been 1009 removed. All ioctl operations can be performed the normal way using 1010 routing sockets. The kqueue functionality can generally be replaced 1011 with routing sockets. 1012 101320090628: 1014 The documentation from the FreeBSD Documentation Project (Handbook, 1015 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1016 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1017 101820090624: 1019 The ABI of various structures related to the SYSV IPC API have been 1020 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1021 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1022 800100. 1023 102420090622: 1025 Layout of struct vnet has changed as routing related variables were 1026 moved to their own Vimage module. Modules need to be recompiled. Bump 1027 __FreeBSD_version to 800099. 1028 102920090619: 1030 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1031 respectively. As long as no more than 16 groups per process are used, 1032 no changes should be visible. When more than 16 groups are used, old 1033 binaries may fail if they call getgroups() or getgrouplist() with 1034 statically sized storage. Recompiling will work around this, but 1035 applications should be modified to use dynamically allocated storage 1036 for group arrays as POSIX.1-2008 does not cap an implementation's 1037 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1038 1039 NFS and portalfs mounts may also be affected as the list of groups is 1040 truncated to 16. Users of NFS who use more than 16 groups, should 1041 take care that negative group permissions are not used on the exported 1042 file systems as they will not be reliable unless a GSSAPI based 1043 authentication method is used. 1044 104520090616: 1046 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1047 option compiles in the support for adaptive spinning for lockmgrs 1048 which want to enable it. The lockinit() function now accepts the flag 1049 LK_ADAPTIVE in order to make the lock object subject to adaptive 1050 spinning when both held in write and read mode. 1051 105220090613: 1053 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1054 changed. User applications that use this ioctl need to be rebuilt. 1055 105620090611: 1057 The layout of struct thread has changed. Kernel and modules need to 1058 be rebuilt. 1059 106020090608: 1061 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1062 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1063 106420090602: 1065 window(1) has been removed from the base system. It can now be 1066 installed from ports. The port is called misc/window. 1067 106820090601: 1069 The way we are storing and accessing `routing table' entries has 1070 changed. Programs reading the FIB, like netstat, need to be 1071 re-compiled. 1072 107320090601: 1074 A new netisr implementation has been added for FreeBSD 8. Network 1075 file system modules, such as igmp, ipdivert, and others, should be 1076 rebuilt. 1077 Bump __FreeBSD_version to 800096. 1078 107920090530: 1080 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1081 more valid. 1082 108320090530: 1084 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1085 Bump __FreeBSD_version to 800094. 1086 108720090529: 1088 Add mnt_xflag field to 'struct mount'. File system modules need to be 1089 rebuilt. 1090 Bump __FreeBSD_version to 800093. 1091 109220090528: 1093 The compiling option ADAPTIVE_SX has been retired while it has been 1094 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1095 The KPI for sx_init_flags() changes as accepting flags: 1096 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1097 been introduced in order to handle the reversed logic. 1098 Bump __FreeBSD_version to 800092. 1099 110020090527: 1101 Add support for hierarchical jails. Remove global securelevel. 1102 Bump __FreeBSD_version to 800091. 1103 110420090523: 1105 The layout of struct vnet_net has changed, therefore modules 1106 need to be rebuilt. 1107 Bump __FreeBSD_version to 800090. 1108 110920090523: 1110 The newly imported zic(8) produces a new format in the output. Please 1111 run tzsetup(8) to install the newly created data to /etc/localtime. 1112 111320090520: 1114 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1115 hw.usb.* and is now consistent again with previous releases. 1116 111720090520: 1118 802.11 monitor mode support was revised and driver api's were changed. 1119 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1120 of DLT_IEEE802_11. No user-visible data structures were changed but 1121 applications that use DLT_IEEE802_11 may require changes. 1122 Bump __FreeBSD_version to 800088. 1123 112420090430: 1125 The layout of the following structs has changed: sysctl_oid, 1126 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1127 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1128 panics may be experienced. World rebuild is required for 1129 correctly checking networking state from userland. 1130 Bump __FreeBSD_version to 800085. 1131 113220090429: 1133 MLDv2 and Source-Specific Multicast (SSM) have been merged 1134 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1135 The implementation of SSM within FreeBSD's IPv6 stack closely 1136 follows the IPv4 implementation. 1137 1138 For kernel developers: 1139 1140 * The most important changes are that the ip6_output() and 1141 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1142 and this lock has been downgraded to a non-recursive mutex. 1143 1144 * As with the changes to the IPv4 stack to support SSM, filtering 1145 of inbound multicast traffic must now be performed by transport 1146 protocols within the IPv6 stack. This does not apply to TCP and 1147 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1148 1149 * The KPIs used by IPv6 multicast are similar to those used by 1150 the IPv4 stack, with the following differences: 1151 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1152 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1153 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1154 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1155 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1156 for MLDv1 have an additional 'timer' argument which is used to 1157 jitter the initial membership report for the solicited-node 1158 multicast membership on-link. 1159 * This is not strictly needed for MLDv2, which already jitters 1160 its report transmissions. However, the 'timer' argument is 1161 preserved in case MLDv1 is active on the interface. 1162 1163 * The KAME linked-list based IPv6 membership implementation has 1164 been refactored to use a vector similar to that used by the IPv4 1165 stack. 1166 Code which maintains a list of its own multicast memberships 1167 internally, e.g. carp, has been updated to reflect the new 1168 semantics. 1169 1170 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1171 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1172 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1173 implementation constraint which needs to be addressed in HEAD. 1174 1175 For application developers: 1176 1177 * The changes are broadly similar to those made for the IPv4 1178 stack. 1179 1180 * The use of IPv4 and IPv6 multicast socket options on the same 1181 socket, using mapped addresses, HAS NOT been tested or supported. 1182 1183 * There are a number of issues with the implementation of various 1184 IPv6 multicast APIs which need to be resolved in the API surface 1185 before the implementation is fully compatible with KAME userland 1186 use, and these are mostly to do with interface index treatment. 1187 1188 * The literature available discusses the use of either the delta / ASM 1189 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1190 using setsourcefilter(3)/getsourcefilter(3). For more information 1191 please refer to RFC 3768, 'Socket Interface Extensions for 1192 Multicast Source Filters'. 1193 1194 * Applications which use the published RFC 3678 APIs should be fine. 1195 1196 For systems administrators: 1197 1198 * The mtest(8) utility has been refactored to support IPv6, in 1199 addition to IPv4. Interface addresses are no longer accepted 1200 as arguments, their names must be used instead. The utility 1201 will map the interface name to its first IPv4 address as 1202 returned by getifaddrs(3). 1203 1204 * The ifmcstat(8) utility has also been updated to print the MLDv2 1205 endpoint state and source filter lists via sysctl(3). 1206 1207 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1208 loopback of IPv6 multicast datagrams by default; it defaults to 1 1209 to preserve the existing behaviour. Disabling multicast loopback is 1210 recommended for optimal system performance. 1211 1212 * The IPv6 MROUTING code has been changed to examine this sysctl 1213 instead of attempting to perform a group lookup before looping 1214 back forwarded datagrams. 1215 1216 Bump __FreeBSD_version to 800084. 1217 121820090422: 1219 Implement low-level Bluetooth HCI API. 1220 Bump __FreeBSD_version to 800083. 1221 122220090419: 1223 The layout of struct malloc_type, used by modules to register new 1224 memory allocation types, has changed. Most modules will need to 1225 be rebuilt or panics may be experienced. 1226 Bump __FreeBSD_version to 800081. 1227 122820090415: 1229 Anticipate overflowing inp_flags - add inp_flags2. 1230 This changes most offsets in inpcb, so checking v4 connection 1231 state will require a world rebuild. 1232 Bump __FreeBSD_version to 800080. 1233 123420090415: 1235 Add an llentry to struct route and struct route_in6. Modules 1236 embedding a struct route will need to be recompiled. 1237 Bump __FreeBSD_version to 800079. 1238 123920090414: 1240 The size of rt_metrics_lite and by extension rtentry has changed. 1241 Networking administration apps will need to be recompiled. 1242 The route command now supports show as an alias for get, weighting 1243 of routes, sticky and nostick flags to alter the behavior of stateful 1244 load balancing. 1245 Bump __FreeBSD_version to 800078. 1246 124720090408: 1248 Do not use Giant for kbdmux(4) locking. This is wrong and 1249 apparently causing more problems than it solves. This will 1250 re-open the issue where interrupt handlers may race with 1251 kbdmux(4) in polling mode. Typical symptoms include (but 1252 not limited to) duplicated and/or missing characters when 1253 low level console functions (such as gets) are used while 1254 interrupts are enabled (for example geli password prompt, 1255 mountroot prompt etc.). Disabling kbdmux(4) may help. 1256 125720090407: 1258 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1259 kernel modules referencing any of the above need to be recompiled. 1260 Bump __FreeBSD_version to 800075. 1261 126220090320: 1263 GEOM_PART has become the default partition slicer for storage devices, 1264 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1265 introduces some changes: 1266 1267 MSDOS/EBR: the devices created from MSDOS extended partition entries 1268 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1269 to devices with offset-based names. fstabs may need to be modified. 1270 1271 BSD: the "geometry does not match label" warning is harmless in most 1272 cases but it points to problems in file system misalignment with 1273 disk geometry. The "c" partition is now implicit, covers the whole 1274 top-level drive and cannot be (mis)used by users. 1275 1276 General: Kernel dumps are now not allowed to be written to devices 1277 whose partition types indicate they are meant to be used for file 1278 systems (or, in case of MSDOS partitions, as something else than 1279 the "386BSD" type). 1280 1281 Most of these changes date approximately from 200812. 1282 128320090319: 1284 The uscanner(4) driver has been removed from the kernel. This follows 1285 Linux removing theirs in 2.6 and making libusb the default interface 1286 (supported by sane). 1287 128820090319: 1289 The multicast forwarding code has been cleaned up. netstat(1) 1290 only relies on KVM now for printing bandwidth upcall meters. 1291 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1292 ip6_mroute_mod respectively. The config(5) options for statically 1293 compiling this code remain the same, i.e. 'options MROUTING'. 1294 129520090315: 1296 Support for the IFF_NEEDSGIANT network interface flag has been 1297 removed, which means that non-MPSAFE network device drivers are no 1298 longer supported. In particular, if_ar, if_sr, and network device 1299 drivers from the old (legacy) USB stack can no longer be built or 1300 used. 1301 130220090313: 1303 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1304 a bunch of new language catalog files have also been added. 1305 This means that some common libc messages are now localized and 1306 they depend on the LC_MESSAGES environmental variable. 1307 130820090313: 1309 The k8temp(4) driver has been renamed to amdtemp(4) since 1310 support for Family 10 and Family 11 CPU families was added. 1311 131220090309: 1313 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1314 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1315 1316 For kernel developers, the most important changes are that the 1317 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1318 and this lock has been downgraded to a non-recursive mutex. 1319 1320 Transport protocols (UDP, Raw IP) are now responsible for filtering 1321 inbound multicast traffic according to group membership and source 1322 filters. The imo_multicast_filter() KPI exists for this purpose. 1323 Transports which do not use multicast (SCTP, TCP) already reject 1324 multicast by default. Forwarding and receive performance may improve 1325 as a mutex acquisition is no longer needed in the ip_input() 1326 low-level input path. in_addmulti() and in_delmulti() are shimmed 1327 to new KPIs which exist to support SSM in-kernel. 1328 1329 For application developers, it is recommended that loopback of 1330 multicast datagrams be disabled for best performance, as this 1331 will still cause the lock to be taken for each looped-back 1332 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1333 be tuned to 0 to disable loopback by default; it defaults to 1 1334 to preserve the existing behaviour. 1335 1336 For systems administrators, to obtain best performance with 1337 multicast reception and multiple groups, it is always recommended 1338 that a card with a suitably precise hash filter is used. Hash 1339 collisions will still result in the lock being taken within the 1340 transport protocol input path to check group membership. 1341 1342 If deploying FreeBSD in an environment with IGMP snooping switches, 1343 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1344 enabled; this forces 224.0.0.0/24 group membership to be announced 1345 via IGMP. 1346 1347 The size of 'struct igmpstat' has changed; netstat needs to be 1348 recompiled to reflect this. 1349 Bump __FreeBSD_version to 800070. 1350 135120090309: 1352 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1353 updated to use it. This requires a buildworld/installworld in order to 1354 update the library and dependencies (usbconfig, etc). Its advisable to 1355 rebuild all ports which uses libusb. More specific directions are given 1356 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1357 libusb are no longer required and can be removed. 1358 135920090302: 1360 A workaround is committed to allow the creation of System V shared 1361 memory segment of size > 2 GB on the 64-bit architectures. 1362 Due to a limitation of the existing ABI, the shm_segsz member 1363 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1364 wrong for large segments. Note that limits must be explicitly 1365 raised to allow such segments to be created. 1366 136720090301: 1368 The layout of struct ifnet has changed, requiring a rebuild of all 1369 network device driver modules. 1370 137120090227: 1372 The /dev handling for the new USB stack has changed, a 1373 buildworld/installworld is required for libusb20. 1374 137520090223: 1376 The new USB2 stack has now been permanently moved in and all kernel and 1377 module names reverted to their previous values (eg, usb, ehci, ohci, 1378 ums, ...). The old usb stack can be compiled in by prefixing the name 1379 with the letter 'o', the old usb modules have been removed. 1380 Updating entry 20090216 for xorg and 20090215 for libmap may still 1381 apply. 1382 138320090217: 1384 The rc.conf(5) option if_up_delay has been renamed to 1385 defaultroute_delay to better reflect its purpose. If you have 1386 customized this setting in /etc/rc.conf you need to update it to 1387 use the new name. 1388 138920090216: 1390 xorg 7.4 wants to configure its input devices via hald which does not 1391 yet work with USB2. If the keyboard/mouse does not work in xorg then 1392 add 1393 Option "AllowEmptyInput" "off" 1394 to your ServerLayout section. This will cause X to use the configured 1395 kbd and mouse sections from your xorg.conf. 1396 139720090215: 1398 The GENERIC kernels for all architectures now default to the new USB2 1399 stack. No kernel config options or code have been removed so if a 1400 problem arises please report it and optionally revert to the old USB 1401 stack. If you are loading USB kernel modules or have a custom kernel 1402 that includes GENERIC then ensure that usb names are also changed over, 1403 eg uftdi -> usb2_serial_ftdi. 1404 1405 Older programs linked against the ports libusb 0.1 need to be 1406 redirected to the new stack's libusb20. /etc/libmap.conf can 1407 be used for this: 1408 # Map old usb library to new one for usb2 stack 1409 libusb-0.1.so.8 libusb20.so.1 1410 141120090209: 1412 All USB ethernet devices now attach as interfaces under the name ueN 1413 (eg. ue0). This is to provide a predictable name as vendors often 1414 change usb chipsets in a product without notice. 1415 141620090203: 1417 The ichsmb(4) driver has been changed to require SMBus slave 1418 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1419 All of the other SMBus controller drivers require left-justified 1420 slave addresses, so this change makes all the drivers provide the 1421 same interface. 1422 142320090201: 1424 INET6 statistics (struct ip6stat) was updated. 1425 netstat(1) needs to be recompiled. 1426 142720090119: 1428 NTFS has been removed from GENERIC kernel on amd64 to match 1429 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1430 will load ntfs.ko module automatically when NTFS support is 1431 actually needed, unless ntfs.ko is not installed or security 1432 level prohibits loading kernel modules. If either is the case, 1433 "options NTFS" has to be added into kernel config. 1434 143520090115: 1436 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1437 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1438 800061. User space tools that rely on the size of struct tcpcb in 1439 tcp_var.h (e.g. sockstat) need to be recompiled. 1440 144120081225: 1442 ng_tty(4) module updated to match the new TTY subsystem. 1443 Due to API change, user-level applications must be updated. 1444 New API support added to mpd5 CVS and expected to be present 1445 in next mpd5.3 release. 1446 144720081219: 1448 With __FreeBSD_version 800060 the makefs tool is part of 1449 the base system (it was a port). 1450 145120081216: 1452 The afdata and ifnet locks have been changed from mutexes to 1453 rwlocks, network modules will need to be re-compiled. 1454 145520081214: 1456 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1457 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1458 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1459 architecture and 40 bytes on 64-bit architecture. The userland 1460 applications "arp" and "ndp" have been updated accordingly. 1461 The output from "netstat -r" shows only routing entries and 1462 none of the L2 information. 1463 146420081130: 1465 __FreeBSD_version 800057 marks the switchover from the 1466 binary ath hal to source code. Users must add the line: 1467 1468 options AH_SUPPORT_AR5416 1469 1470 to their kernel config files when specifying: 1471 1472 device ath_hal 1473 1474 The ath_hal module no longer exists; the code is now compiled 1475 together with the driver in the ath module. It is now 1476 possible to tailor chip support (i.e. reduce the set of chips 1477 and thereby the code size); consult ath_hal(4) for details. 1478 147920081121: 1480 __FreeBSD_version 800054 adds memory barriers to 1481 <machine/atomic.h>, new interfaces to ifnet to facilitate 1482 multiple hardware transmit queues for cards that support 1483 them, and a lock-less ring-buffer implementation to 1484 enable drivers to more efficiently manage queueing of 1485 packets. 1486 148720081117: 1488 A new version of ZFS (version 13) has been merged to -HEAD. 1489 This version has zpool attribute "listsnapshots" off by 1490 default, which means "zfs list" does not show snapshots, 1491 and is the same as Solaris behavior. 1492 149320081028: 1494 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1495 149620081009: 1497 The uhci, ohci, ehci and slhci USB Host controller drivers have 1498 been put into separate modules. If you load the usb module 1499 separately through loader.conf you will need to load the 1500 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1501 controller add the following to loader.conf: 1502 1503 uhci_load="YES" 1504 ehci_load="YES" 1505 150620081009: 1507 The ABI used by the PMC toolset has changed. Please keep 1508 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1509 sync. 1510 151120081009: 1512 atapci kernel module now includes only generic PCI ATA 1513 driver. AHCI driver moved to ataahci kernel module. 1514 All vendor-specific code moved into separate kernel modules: 1515 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1516 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1517 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1518 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1519 152020080820: 1521 The TTY subsystem of the kernel has been replaced by a new 1522 implementation, which provides better scalability and an 1523 improved driver model. Most common drivers have been migrated to 1524 the new TTY subsystem, while others have not. The following 1525 drivers have not yet been ported to the new TTY layer: 1526 1527 PCI/ISA: 1528 cy, digi, rc, rp, sio 1529 1530 USB: 1531 ubser, ucycom 1532 1533 Line disciplines: 1534 ng_h4, ng_tty, ppp, sl, snp 1535 1536 Adding these drivers to your kernel configuration file shall 1537 cause compilation to fail. 1538 153920080818: 1540 ntpd has been upgraded to 4.2.4p5. 1541 154220080801: 1543 OpenSSH has been upgraded to 5.1p1. 1544 1545 For many years, FreeBSD's version of OpenSSH preferred DSA 1546 over RSA for host and user authentication keys. With this 1547 upgrade, we've switched to the vendor's default of RSA over 1548 DSA. This may cause upgraded clients to warn about unknown 1549 host keys even for previously known hosts. Users should 1550 follow the usual procedure for verifying host keys before 1551 accepting the RSA key. 1552 1553 This can be circumvented by setting the "HostKeyAlgorithms" 1554 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1555 command line. 1556 1557 Please note that the sequence of keys offered for 1558 authentication has been changed as well. You may want to 1559 specify IdentityFile in a different order to revert this 1560 behavior. 1561 156220080713: 1563 The sio(4) driver has been removed from the i386 and amd64 1564 kernel configuration files. This means uart(4) is now the 1565 default serial port driver on those platforms as well. 1566 1567 To prevent collisions with the sio(4) driver, the uart(4) driver 1568 uses different names for its device nodes. This means the 1569 onboard serial port will now most likely be called "ttyu0" 1570 instead of "ttyd0". You may need to reconfigure applications to 1571 use the new device names. 1572 1573 When using the serial port as a boot console, be sure to update 1574 /boot/device.hints and /etc/ttys before booting the new kernel. 1575 If you forget to do so, you can still manually specify the hints 1576 at the loader prompt: 1577 1578 set hint.uart.0.at="isa" 1579 set hint.uart.0.port="0x3F8" 1580 set hint.uart.0.flags="0x10" 1581 set hint.uart.0.irq="4" 1582 boot -s 1583 158420080609: 1585 The gpt(8) utility has been removed. Use gpart(8) to partition 1586 disks instead. 1587 158820080603: 1589 The version that Linuxulator emulates was changed from 2.4.2 1590 to 2.6.16. If you experience any problems with Linux binaries 1591 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1592 if it fixes the problem contact emulation mailing list. 1593 159420080525: 1595 ISDN4BSD (I4B) was removed from the src tree. You may need to 1596 update a your kernel configuration and remove relevant entries. 1597 159820080509: 1599 I have checked in code to support multiple routing tables. 1600 See the man pages setfib(1) and setfib(2). 1601 This is a hopefully backwards compatible version, 1602 but to make use of it you need to compile your kernel 1603 with options ROUTETABLES=2 (or more up to 16). 1604 160520080420: 1606 The 802.11 wireless support was redone to enable multi-bss 1607 operation on devices that are capable. The underlying device 1608 is no longer used directly but instead wlanX devices are 1609 cloned with ifconfig. This requires changes to rc.conf files. 1610 For example, change: 1611 ifconfig_ath0="WPA DHCP" 1612 to 1613 wlans_ath0=wlan0 1614 ifconfig_wlan0="WPA DHCP" 1615 see rc.conf(5) for more details. In addition, mergemaster of 1616 /etc/rc.d is highly recommended. Simultaneous update of userland 1617 and kernel wouldn't hurt either. 1618 1619 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1620 modules were merged into the base wlan module. All references 1621 to these modules (e.g. in kernel config files) must be removed. 1622 162320080408: 1624 psm(4) has gained write(2) support in native operation level. 1625 Arbitrary commands can be written to /dev/psm%d and status can 1626 be read back from it. Therefore, an application is responsible 1627 for status validation and error recovery. It is a no-op in 1628 other operation levels. 1629 163020080312: 1631 Support for KSE threading has been removed from the kernel. To 1632 run legacy applications linked against KSE libmap.conf may 1633 be used. The following libmap.conf may be used to ensure 1634 compatibility with any prior release: 1635 1636 libpthread.so.1 libthr.so.1 1637 libpthread.so.2 libthr.so.2 1638 libkse.so.3 libthr.so.3 1639 164020080301: 1641 The layout of struct vmspace has changed. This affects libkvm 1642 and any executables that link against libkvm and use the 1643 kvm_getprocs() function. In particular, but not exclusively, 1644 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1645 The effects are minimal, but it's advisable to upgrade world 1646 nonetheless. 1647 164820080229: 1649 The latest em driver no longer has support in it for the 1650 82575 adapter, this is now moved to the igb driver. The 1651 split was done to make new features that are incompatible 1652 with older hardware easier to do. 1653 165420080220: 1655 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1656 likewise the kernel option is now GEOM_LINUX_LVM. 1657 165820080211: 1659 The default NFS mount mode has changed from UDP to TCP for 1660 increased reliability. If you rely on (insecurely) NFS 1661 mounting across a firewall you may need to update your 1662 firewall rules. 1663 166420080208: 1665 Belatedly note the addition of m_collapse for compacting 1666 mbuf chains. 1667 166820080126: 1669 The fts(3) structures have been changed to use adequate 1670 integer types for their members and so to be able to cope 1671 with huge file trees. The old fts(3) ABI is preserved 1672 through symbol versioning in libc, so third-party binaries 1673 using fts(3) should still work, although they will not take 1674 advantage of the extended types. At the same time, some 1675 third-party software might fail to build after this change 1676 due to unportable assumptions made in its source code about 1677 fts(3) structure members. Such software should be fixed 1678 by its vendor or, in the worst case, in the ports tree. 1679 FreeBSD_version 800015 marks this change for the unlikely 1680 case that a portable fix is impossible. 1681 168220080123: 1683 To upgrade to -current after this date, you must be running 1684 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1685 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1686 168720071128: 1688 The ADAPTIVE_GIANT kernel option has been retired because its 1689 functionality is the default now. 1690 169120071118: 1692 The AT keyboard emulation of sunkbd(4) has been turned on 1693 by default. In order to make the special symbols of the Sun 1694 keyboards driven by sunkbd(4) work under X these now have 1695 to be configured the same way as Sun USB keyboards driven 1696 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1697 1698 Option "XkbLayout" "us" 1699 Option "XkbRules" "xorg" 1700 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1701 170220071024: 1703 It has been decided that it is desirable to provide ABI 1704 backwards compatibility to the FreeBSD 4/5/6 versions of the 1705 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1706 broken with the introduction of PCI domain support (see the 1707 20070930 entry). Unfortunately, this required the ABI of 1708 PCIOCGETCONF to be broken again in order to be able to 1709 provide backwards compatibility to the old version of that 1710 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1711 again. As for prominent ports this affects neither pciutils 1712 nor xorg-server this time, the hal port needs to be rebuilt 1713 however. 1714 171520071020: 1716 The misnamed kthread_create() and friends have been renamed 1717 to kproc_create() etc. Many of the callers already 1718 used kproc_start().. 1719 I will return kthread_create() and friends in a while 1720 with implementations that actually create threads, not procs. 1721 Renaming corresponds with version 800002. 1722 172320071010: 1724 RELENG_7 branched. 1725 1726COMMON ITEMS: 1727 1728 General Notes 1729 ------------- 1730 Avoid using make -j when upgrading. While generally safe, there are 1731 sometimes problems using -j to upgrade. If your upgrade fails with 1732 -j, please try again without -j. From time to time in the past there 1733 have been problems using -j with buildworld and/or installworld. This 1734 is especially true when upgrading between "distant" versions (eg one 1735 that cross a major release boundary or several minor releases, or when 1736 several months have passed on the -current branch). 1737 1738 Sometimes, obscure build problems are the result of environment 1739 poisoning. This can happen because the make utility reads its 1740 environment when searching for values for global variables. To run 1741 your build attempts in an "environmental clean room", prefix all make 1742 commands with 'env -i '. See the env(1) manual page for more details. 1743 1744 When upgrading from one major version to another it is generally best 1745 to upgrade to the latest code in the currently installed branch first, 1746 then do an upgrade to the new branch. This is the best-tested upgrade 1747 path, and has the highest probability of being successful. Please try 1748 this approach before reporting problems with a major version upgrade. 1749 1750 ZFS notes 1751 --------- 1752 When upgrading the boot ZFS pool to a new version, always follow 1753 these two steps: 1754 1755 1.) recompile and reinstall the ZFS boot loader and boot block 1756 (this is part of "make buildworld" and "make installworld") 1757 1758 2.) update the ZFS boot block on your boot drive 1759 1760 The following example updates the ZFS boot block on the first 1761 partition (freebsd-boot) of a GPT partitioned drive ad0: 1762 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1763 1764 Non-boot pools do not need these updates. 1765 1766 To build a kernel 1767 ----------------- 1768 If you are updating from a prior version of FreeBSD (even one just 1769 a few days old), you should follow this procedure. It is the most 1770 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1771 1772 make kernel-toolchain 1773 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1774 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1775 1776 To test a kernel once 1777 --------------------- 1778 If you just want to boot a kernel once (because you are not sure 1779 if it works, or if you want to boot a known bad kernel to provide 1780 debugging information) run 1781 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1782 nextboot -k testkernel 1783 1784 To just build a kernel when you know that it won't mess you up 1785 -------------------------------------------------------------- 1786 This assumes you are already running a CURRENT system. Replace 1787 ${arch} with the architecture of your machine (e.g. "i386", 1788 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1789 1790 cd src/sys/${arch}/conf 1791 config KERNEL_NAME_HERE 1792 cd ../compile/KERNEL_NAME_HERE 1793 make depend 1794 make 1795 make install 1796 1797 If this fails, go to the "To build a kernel" section. 1798 1799 To rebuild everything and install it on the current system. 1800 ----------------------------------------------------------- 1801 # Note: sometimes if you are running current you gotta do more than 1802 # is listed here if you are upgrading from a really old current. 1803 1804 <make sure you have good level 0 dumps> 1805 make buildworld 1806 make kernel KERNCONF=YOUR_KERNEL_HERE 1807 [1] 1808 <reboot in single user> [3] 1809 mergemaster -p [5] 1810 make installworld 1811 mergemaster -i [4] 1812 make delete-old [6] 1813 <reboot> 1814 1815 1816 To cross-install current onto a separate partition 1817 -------------------------------------------------- 1818 # In this approach we use a separate partition to hold 1819 # current's root, 'usr', and 'var' directories. A partition 1820 # holding "/", "/usr" and "/var" should be about 2GB in 1821 # size. 1822 1823 <make sure you have good level 0 dumps> 1824 <boot into -stable> 1825 make buildworld 1826 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1827 <maybe newfs current's root partition> 1828 <mount current's root partition on directory ${CURRENT_ROOT}> 1829 make installworld DESTDIR=${CURRENT_ROOT} 1830 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1831 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1832 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1833 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1834 <reboot into current> 1835 <do a "native" rebuild/install as described in the previous section> 1836 <maybe install compatibility libraries from ports/misc/compat*> 1837 <reboot> 1838 1839 1840 To upgrade in-place from stable to current 1841 ---------------------------------------------- 1842 <make sure you have good level 0 dumps> 1843 make buildworld [9] 1844 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1845 [1] 1846 <reboot in single user> [3] 1847 mergemaster -p [5] 1848 make installworld 1849 mergemaster -i [4] 1850 make delete-old [6] 1851 <reboot> 1852 1853 Make sure that you've read the UPDATING file to understand the 1854 tweaks to various things you need. At this point in the life 1855 cycle of current, things change often and you are on your own 1856 to cope. The defaults can also change, so please read ALL of 1857 the UPDATING entries. 1858 1859 Also, if you are tracking -current, you must be subscribed to 1860 freebsd-current@freebsd.org. Make sure that before you update 1861 your sources that you have read and understood all the recent 1862 messages there. If in doubt, please track -stable which has 1863 much fewer pitfalls. 1864 1865 [1] If you have third party modules, such as vmware, you 1866 should disable them at this point so they don't crash your 1867 system on reboot. 1868 1869 [3] From the bootblocks, boot -s, and then do 1870 fsck -p 1871 mount -u / 1872 mount -a 1873 cd src 1874 adjkerntz -i # if CMOS is wall time 1875 Also, when doing a major release upgrade, it is required that 1876 you boot into single user mode to do the installworld. 1877 1878 [4] Note: This step is non-optional. Failure to do this step 1879 can result in a significant reduction in the functionality of the 1880 system. Attempting to do it by hand is not recommended and those 1881 that pursue this avenue should read this file carefully, as well 1882 as the archives of freebsd-current and freebsd-hackers mailing lists 1883 for potential gotchas. The -U option is also useful to consider. 1884 See mergemaster(8) for more information. 1885 1886 [5] Usually this step is a noop. However, from time to time 1887 you may need to do this if you get unknown user in the following 1888 step. It never hurts to do it all the time. You may need to 1889 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1890 install) after the buildworld before this step if you last updated 1891 from [78]-stable or 9-stable before 20130430. 1892 1893 [6] This only deletes old files and directories. Old libraries 1894 can be deleted by "make delete-old-libs", but you have to make 1895 sure that no program is using those libraries anymore. 1896 1897 [8] In order to have a kernel that can run the 4.x binaries needed to 1898 do an installworld, you must include the COMPAT_FREEBSD4 option in 1899 your kernel. Failure to do so may leave you with a system that is 1900 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1901 required to run the 5.x binaries on more recent kernels. And so on 1902 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1903 1904 Make sure that you merge any new devices from GENERIC since the 1905 last time you updated your kernel config file. 1906 1907 [9] When checking out sources, you must include the -P flag to have 1908 cvs prune empty directories. 1909 1910 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1911 "?=" instead of the "=" assignment operator, so that buildworld can 1912 override the CPUTYPE if it needs to. 1913 1914 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1915 not on the command line, or in /etc/make.conf. buildworld will 1916 warn if it is improperly defined. 1917FORMAT: 1918 1919This file contains a list, in reverse chronological order, of major 1920breakages in tracking -current. It is not guaranteed to be a complete 1921list of such breakages, and only contains entries since October 10, 2007. 1922If you need to see UPDATING entries from before that date, you will need 1923to fetch an UPDATING file from an older FreeBSD release. 1924 1925Copyright information: 1926 1927Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1928 1929Redistribution, publication, translation and use, with or without 1930modification, in full or in part, in any form or format of this 1931document are permitted without further permission from the author. 1932 1933THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1934IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1935WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1936DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1937INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1938(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1939SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1940HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1941STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1942IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1943POSSIBILITY OF SUCH DAMAGE. 1944 1945Contact Warner Losh if you have any questions about your use of 1946this document. 1947 1948$FreeBSD: releng/9.3/UPDATING 298770 2016-04-29 08:02:31Z delphij $ 1949