UPDATING revision 290001
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 1420151026: p29 FreeBSD-SA-15:25.ntp 15 16 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 17 18 The configuration file syntax has been changed, thus mergemaster 19 run is recommended. Now the "kod" parameter requires "limited" 20 parameter. If the ntp.conf is not updated, the ntpd will run 21 successfully, but with KoD disabled. 22 2320151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 24 Revised patch to address a regression that prevents NIS from working. 25 2620150929: p27 FreeBSD-SA-15:24.rpcbind 27 28 Fix rpcbind(8) remote denial of service. [SA-15:24] 29 3020150916: p26 FreeBSD-EN-15:18.pkg 31 32 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 33 3420150902: p25 FreeBSD-SA-15:23.bind 35 36 Fix BIND remote denial of service vulnerability. [SA-15:23] 37 3820150825: p24 FreeBSD-SA-15:21.amd64 39 FreeBSD-SA-15:22.openssh 40 FreeBSD-EN-15:15.pkg 41 42 Fix local privilege escalation in IRET handler. [SA-15:21] 43 44 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 45 46 Fix insufficient check of unsupported pkg(7) signature methods. 47 [EN-15:15] 48 4920150818: p23 FreeBSD-SA-15:20.expat 50 51 Fix multiple integer overflows in expat (libbsdxml) XML parser. 52 [SA-15:20] 53 5420150805: p22 FreeBSD-SA-15:19.routed 55 56 Fix routed remote denial of service vulnerability. 57 5820150728: p21 FreeBSD-SA-15:15.tcp 59 FreeBSD-SA-15:16.openssh 60 FreeBSD-SA-15:17.bind 61 62 Fix resource exhaustion in TCP reassembly. [SA-15:15] 63 64 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 65 66 Fix BIND remote denial of service vulnerability. [SA-15:17] 67 6820150721: p20 FreeBSD-SA-15:13.tcp 69 70 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 71 [SA-15:13] 72 7320150707: p19 FreeBSD-SA-15:11.bind 74 Fix BIND resolver remote denial of service when validating. 75 7620150630: p18 FreeBSD-EN-15:08.sendmail [revised] 77 FreeBSD-EN-15:09.xlocale 78 79 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 80 81 Fix inconsistency between locale and rune locale states. 82 [EN-15:09] 83 8420150618: p17 FreeBSD-EN-15:08.sendmail 85 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 86 8720150612: p16 FreeBSD-SA-15:10.openssl 88 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 89 9020150609: p15 FreeBSD-EN-15:06.file 91 92 Updated base system file(1) to 5.22 to address multiple denial 93 of service issues. 94 9520150513: p14 FreeBSD-EN-15:04.freebsd-update 96 97 Fix bug with freebsd-update(8) that does not ensure the previous 98 upgrade was completed. [EN-15:04] 99 10020150407: p13 FreeBSD-SA-15:04.igmp [revised] 101 FreeBSD-SA-15:07.ntp 102 FreeBSD-SA-15:09.ipv6 103 104 Improved patch for SA-15:04.igmp. 105 106 Fix multiple vulnerabilities of ntp. [SA-15:07] 107 108 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 109 11020150320: p12 111 Fix patch for SA-15:06.openssl. 112 11320150319: p11 FreeBSD-SA-15:06.openssl 114 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 115 11620150225: p10 FreeBSD-SA-15:04.igmp 117 FreeBSD-SA-15:05.bind 118 FreeBSD-EN-15:01.vt 119 FreeBSD-EN-15:02.openssl 120 FreeBSD-EN-15:03.freebsd-update 121 122 Fix integer overflow in IGMP protocol. [SA-15:04] 123 124 Fix BIND remote denial of service vulnerability. [SA-15:05] 125 126 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 127 128 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 129 130 Fix freebsd-update libraries update ordering issue. [EN-15:03] 131 13220150127: p9 FreeBSD-SA-15:02.kmem 133 FreeBSD-SA-15:03.sctp 134 135 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 136 vulnerability. [SA-15:02] 137 138 Fix SCTP stream reset vulnerability. [SA-15:03] 139 14020150114: p8 FreeBSD-SA-15:01.openssl 141 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 142 14320141223: p7 FreeBSD-SA-14:31.ntp 144 FreeBSD-EN-14:13.freebsd-update 145 146 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 147 Fix directory deletion issue in freebsd-update. [EN-14:13] 148 14920141210: p6 FreeBSD-SA-14:28.file 150 FreeBSD-SA-14:29.bind 151 152 Fix multiple vulnerabilities in file(1) and libmagic(3). 153 [SA-14:28] 154 155 Fix BIND remote denial of service vulnerability. [SA-14:29] 156 15720141104: p5 FreeBSD-SA-14:25.setlogin 158 FreeBSD-SA-14:26.ftp 159 FreeBSD-EN-14:12.zfs 160 161 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 162 [SA-14:25] 163 164 Fix remote command execution in ftp(1). [SA-14:26] 165 166 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 167 16820141022: p4 FreeBSD-EN-14:10.tzdata 169 FreeBSD-EN-14:11.crypt 170 171 Time zone data file update. [EN-14:10] 172 173 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 174 17520141021: p3 FreeBSD-SA-14:20.rtsold 176 FreeBSD-SA-14:21.routed 177 FreeBSD-SA-14:22.namei 178 FreeBSD-SA-14:23.openssl 179 180 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 181 182 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 183 184 Fix memory leak in sandboxed namei lookup. [SA-14:22] 185 186 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 187 18820140916: p2 FreeBSD-SA-14:19.tcp 189 Fix Denial of Service in TCP packet processing. [SA-14:19] 190 19120140909: p1 FreeBSD-SA-14:18.openssl 192 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 193 19420140716: 195 9.3-RELEASE. 196 19720140608: 198 On i386 and amd64 systems, the onifconsole flag is now set by default 199 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 200 as a login TTY if it is set in the bootloader as an active kernel 201 console. No changes in behavior should result otherwise. To revert to 202 the previous behavior, set ttyu0 to "off" in /etc/ttys. 203 20420140512: 205 Clang and llvm have been upgraded to 3.4.1 release. 206 20720140321: 208 Clang and llvm have been upgraded to 3.4 release. 209 21020140216: 211 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 212 been deprecated and will not be part of FreeBSD 11.0 and later 213 releases. If you use this driver, please consider switching to 214 the nfe(4) driver instead. 215 21620131216: 217 The behavior of gss_pseudo_random() for the krb5 mechanism 218 has changed, for applications requesting a longer random string 219 than produced by the underlying enctype's pseudo-random() function. 220 In particular, the random string produced from a session key of 221 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 222 be different at the 17th octet and later, after this change. 223 The counter used in the PRF+ construction is now encoded as a 224 big-endian integer in accordance with RFC 4402. 225 __FreeBSD_version is bumped to 902505. 226 22720130930: 228 9.2-RELEASE. 229 23020130823: 231 Behavior of devfs rules path matching has been changed. 232 Pattern is now always matched against fully qualified devfs 233 path and slash characters must be explicitly matched by 234 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 235 subdirectories must be reviewed. 236 23720130705: 238 hastctl(8)'s `status' command output changed to terse one-liner format. 239 Scripts using this should switch to `list' command or be rewritten. 240 24120130618: 242 Fix a bug that allowed a tracing process (e.g. gdb) to write 243 to a memory-mapped file in the traced process's address space 244 even if neither the traced process nor the tracing process had 245 write access to that file. 246 24720130605: 248 Added ZFS TRIM support which is enabled by default. To disable 249 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 250 251 Creating new ZFS pools and adding new devices to existing pools 252 first performs a full device level TRIM which can take a significant 253 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 254 to disable this behaviour. 255 256 ZFS TRIM requires the underlying device support BIO_DELETE which 257 is currently provided by methods such as ATA TRIM and SCSI UNMAP 258 via CAM, which are typically supported by SSD's. 259 260 Stats for ZFS TRIM can be monitored by looking at the sysctl's 261 under kstat.zfs.misc.zio_trim. 262 26320130524: 264 `list' command has been added to hastctl(8). For now, it is full 265 equivalent of `status' command. 266 WARNING: in the near future the output of hastctl's status command 267 will change to more terse format. If you use `hastctl status' 268 for parsing in your scripts, switch to `hastctl list'. 269 27020130430: 271 The mergemaster command now uses the default MAKEOBJDIRPREFIX 272 rather than creating it's own in the temporary directory in 273 order allow access to bootstrapped versions of tools such as 274 install and mtree. When upgrading from version of FreeBSD where 275 the install command does not support -l, you will need to 276 install a new mergemaster command if mergemaster -p is required. 277 This can be accomplished with the command (cd src/usr.sbin/mergemaster 278 && make install). 279 280 Due to the use of the new -l option to install(1) during build 281 and install, you must take care not to directly set the INSTALL 282 make variable in your /etc/make.conf, /etc/src.conf, or on the 283 command line. If you wish to use the -C flag for all installs 284 you may be able to add INSTALL+=-C to /etc/make.conf or 285 /etc/src.conf. 286 28720130429: 288 Fix a bug that allows NFS clients to issue READDIR on files. 289 29020130315: 291 The install(1) option -M has changed meaning and now takes an 292 argument that is a file or path to append logs to. In the 293 unlikely event that -M was the last option on the command line 294 and the command line contained at least two files and a target 295 directory the first file will have logs appended to it. The -M 296 option served little practical purpose in the last decade so it's 297 used expected to be extremely rare. 298 29920130225: 300 A new compression method (lz4) has been merged to. Please refer to 301 zpool-features(7) for more information. 302 303 Please refer to the "ZFS notes" section of this file for information 304 on upgrading boot ZFS pools. 305 30620121224: 307 The VFS KBI was changed with the merge of several nullfs 308 optimizations and fixes. All filesystem modules must be 309 recompiled. 310 31120121218: 312 With the addition of auditdistd(8), a new auditdistd user is now 313 depended on during installworld. "mergemaster -p" can be used to add 314 the user prior to installworld, as documented in the handbook. 315 31620121205: 317 9.1-RELEASE. 318 31920121129: 320 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 321 Starting with this version the old system of ZFS pool versioning 322 is superseded by "feature flags". This concept enables forward 323 compatibility against certain future changes in functionality of ZFS 324 pools. The first two read-only compatible "feature flags" for ZFS 325 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 326 For more information read the new zpool-features(7) manual page. 327 Please refer to the "ZFS notes" section of this file for information 328 on upgrading boot ZFS pools. 329 33020121114: 331 The commit introducing bsd.compiler.mk breaks the traditional 332 building of kernels before this point. Add -m ${SRC}/share/mk 333 (for the right value of SRC) to your command lines to work 334 around; update your useland to a point after this; or use the 335 buildkernel/installkernel top-level targets. See also 20120829. 336 33720121102: 338 The IPFIREWALL_FORWARD kernel option has been removed. Its 339 functionality now turned on by default. 340 34120120913: 342 The random(4) support for the VIA hardware random number 343 generator (`PADLOCK') is no longer enabled unconditionally. 344 Add the PADLOCK_RNG option in the custom kernel config if 345 needed. The GENERIC kernels on i386 and amd64 do include the 346 option, so the change only affects the custom kernel 347 configurations. 348 34920120829: 350 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 351 the traditional method, you must update your system with an installworld 352 before the kernel will build. The documented make buildkernel/installkernel 353 interfaces (coupled with fresh make kernel-toolchain) continue to work. 354 35520120727: 356 The sparc64 ZFS loader has been changed to no longer try to auto- 357 detect ZFS providers based on diskN aliases but now requires these 358 to be explicitly listed in the OFW boot-device environment variable. 359 36020120422: 361 Now unix domain sockets behave "as expected" on nullfs(5). Previously 362 nullfs(5) did not pass through all behaviours to the underlying layer, 363 as a result if we bound to a socket on the lower layer we could connect 364 only to the lower path; if we bound to the upper layer we could connect 365 only to the upper path. The new behavior is one can connect to both the 366 lower and the upper paths regardless what layer path one binds to. 367 36820120109: 369 The acpi_wmi(4) status device /dev/wmistat has been renamed to 370 /dev/wmistat0. 371 37220120106: 373 A new VOP_ADVISE() was added to support posix_fadvise(2). All 374 filesystem modules must be recompiled. 375 37620120106: 377 The interface of the VOP_VPTOCNP(9) changed, now the returned 378 vnode shall be referenced, previously it was required to be 379 only held. All in-tree filesystems are converted. 380 38120120106: 382 9.0-RELEASE. 383 38420111101: 385 The broken amd(4) driver has been replaced with esp(4) in the amd64, 386 i386 and pc98 GENERIC kernel configuration files. 387 38820110913: 389 This commit modifies vfs_register() so that it uses a hash 390 calculation to set vfc_typenum, which is enabled by default. 391 The first time a system is booted after this change, the 392 vfc_typenum values will change for all file systems. The 393 main effect of this is a change to the NFS server file handles 394 for file systems that use vfc_typenum in their fsid, such as ZFS. 395 It will, however, prevent vfc_typenum from changing when file 396 systems are loaded in a different order for subsequent reboots. 397 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 398 until you are ready to remount all NFS clients after a reboot. 399 40020110828: 401 Bump the shared library version numbers for libraries that 402 do not use symbol versioning, have changed the ABI compared 403 to stable/8 and which shared library version was not bumped. 404 Done as part of 9.0-RELEASE cycle. 405 40620110815: 407 During the merge of Capsicum features, the fget(9) KPI was modified. 408 This may require the rebuilding of out-of-tree device drivers -- 409 issues have been reported specifically with the nVidia device driver. 410 __FreeBSD_version is bumped to 900041. 411 412 Also, there is a period between 20110811 and 20110814 where the 413 special devices /dev/{stdin,stdout,stderr} did not work correctly. 414 Building world from a kernel during that window may not work. 415 41620110628: 417 The packet filter (pf) code has been updated to OpenBSD 4.5. 418 You need to update userland tools to be in sync with kernel. 419 This update breaks backward compatibility with earlier pfsync(4) 420 versions. Care must be taken when updating redundant firewall setups. 421 42220110608: 423 The following sysctls and tunables are retired on x86 platforms: 424 machdep.hlt_cpus 425 machdep.hlt_logical_cpus 426 The following sysctl is retired: 427 machdep.hyperthreading_allowed 428 The sysctls were supposed to provide a way to dynamically offline and 429 online selected CPUs on x86 platforms, but the implementation has not 430 been reliable especially with SCHED_ULE scheduler. 431 machdep.hyperthreading_allowed tunable is still available to ignore 432 hyperthreading CPUs at OS level. 433 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 434 where X is an APIC ID of a CPU. Be advised, though, that disabling 435 CPUs in non-uniform fashion will result in non-uniform topology and 436 may lead to sub-optimal system performance with SCHED_ULE, which is 437 a default scheduler. 438 43920110607: 440 cpumask_t type is retired and cpuset_t is used in order to describe 441 a mask of CPUs. 442 44320110531: 444 Changes to ifconfig(8) for dynamic address family detection mandate 445 that you are running a kernel of 20110525 or later. Make sure to 446 follow the update procedure to boot a new kernel before installing 447 world. 448 44920110513: 450 Support for sun4v architecture is officially dropped 451 45220110503: 453 Several KPI breaking changes have been committed to the mii(4) layer, 454 the PHY drivers and consequently some Ethernet drivers using mii(4). 455 This means that miibus.ko and the modules of the affected Ethernet 456 drivers need to be recompiled. 457 458 Note to kernel developers: Given that the OUI bit reversion problem 459 was fixed as part of these changes all mii(4) commits related to OUIs, 460 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 461 handling, no longer can be merged verbatim to stable/8 and previous 462 branches. 463 46420110430: 465 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 466 into their kernel configurations along with 'device pci'. 467 46820110427: 469 The default NFS client is now the new NFS client, so fstype "newnfs" 470 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 471 Although mounts via fstype "nfs" will usually work without userland 472 changes, it is recommended that the mount(8) and mount_nfs(8) 473 commands be rebuilt from sources and that a link to mount_nfs called 474 mount_oldnfs be created. The new client is compiled into the 475 kernel with "options NFSCL" and this is needed for diskless root 476 file systems. The GENERIC kernel configs have been changed to use 477 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 478 To use the regular/old client, you can "mount -t oldnfs ...". For 479 a diskless root file system, you must also include a line like: 480 481 vfs.root.mountfrom="oldnfs:" 482 483 in the boot/loader.conf on the root fs on the NFS server to make 484 a diskless root fs use the old client. 485 48620110424: 487 The GENERIC kernels for all architectures now default to the new 488 CAM-based ATA stack. It means that all legacy ATA drivers were 489 removed and replaced by respective CAM drivers. If you are using 490 ATA device names in /etc/fstab or other places, make sure to update 491 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 492 where 'Y's are the sequential numbers starting from zero for each type 493 in order of detection, unless configured otherwise with tunables, 494 see cam(4)). There will be symbolic links created in /dev/ to map 495 old adX devices to the respective adaY. They should provide basic 496 compatibility for file systems mounting in most cases, but they do 497 not support old user-level APIs and do not have respective providers 498 in GEOM. Consider using updated management tools with new device names. 499 500 It is possible to load devices ahci, ata, siis and mvs as modules, 501 but option ATA_CAM should remain in kernel configuration to make ata 502 module work as CAM driver supporting legacy ATA controllers. Device ata 503 still can be used in modular fashion (atacore + ...). Modules atadisk 504 and atapi* are not used and won't affect operation in ATA_CAM mode. 505 Note that to use CAM-based ATA kernel should include CAM devices 506 scbus, pass, da (or explicitly ada), cd and optionally others. All of 507 them are parts of the cam module. 508 509 ataraid(4) functionality is now supported by the RAID GEOM class. 510 To use it you can load geom_raid kernel module and use graid(8) tool 511 for management. Instead of /dev/arX device names, use /dev/raid/rX. 512 513 No kernel config options or code have been removed, so if a problem 514 arises, please report it and optionally revert to the old ATA stack. 515 In order to do it you can remove from the kernel config: 516 options ATA_CAM 517 device ahci 518 device mvs 519 device siis 520 , and instead add back: 521 device atadisk # ATA disk drives 522 device ataraid # ATA RAID drives 523 device atapicd # ATAPI CDROM drives 524 device atapifd # ATAPI floppy drives 525 device atapist # ATAPI tape drives 526 52720110423: 528 The default NFS server has been changed to the new server, which 529 was referred to as the experimental server. If you need to switch 530 back to the old NFS server, you must now put the "-o" option on 531 both the mountd and nfsd commands. This can be done using the 532 mountd_flags and nfs_server_flags rc.conf variables until an 533 update to the rc scripts is committed, which is coming soon. 534 53520110418: 536 The GNU Objective-C runtime library (libobjc), and other Objective-C 537 related components have been removed from the base system. If you 538 require an Objective-C library, please use one of the available ports. 539 54020110331: 541 ath(4) has been split into bus- and device- modules. if_ath contains 542 the HAL, the TX rate control and the network device code. if_ath_pci 543 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 544 contains the AHB glue. Users need to load both if_ath_pci and if_ath 545 in order to use ath on everything else. 546 547 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 548 need to load if_ath and if_ath_pci for ath(4) operation. 549 55020110314: 551 As part of the replacement of sysinstall, the process of building 552 release media has changed significantly. For details, please re-read 553 release(7), which has been updated to reflect the new build process. 554 55520110218: 556 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 557 is the last available version under GPLv2. It brings a number of new 558 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 559 4.1 and SSE 4.2), better support for powerpc64, a number of new 560 directives, and lots of other small improvements. See the ChangeLog 561 file in contrib/binutils for the full details. 562 56320110218: 564 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 565 compliant, and will now use half of hash for authentication. 566 This will break interoperability with all stacks (including all 567 actual FreeBSD versions) who implement 568 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 569 authentication). 570 The only workaround with such peers is to use another HMAC 571 algorithm for IPsec ("phase 2") authentication. 572 57320110207: 574 Remove the uio_yield prototype and symbol. This function has 575 been misnamed since it was introduced and should not be 576 globally exposed with this name. The equivalent functionality 577 is now available using kern_yield(curthread->td_user_pri). 578 The function remains undocumented. 579 58020110112: 581 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 582 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 583 for scalar sysctls is defined but disabled. Code that needs 584 UQUAD to pass the type checking that must compile on older 585 systems where the define is not present can check against 586 __FreeBSD_version >= 900030. 587 588 The system dialog(1) has been replaced with a new version previously 589 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 590 with the previous version, but the libdialog associated with it has 591 a largely incompatible API. As such, the original version of libdialog 592 will be kept temporarily as libodialog, until its base system consumers 593 are replaced or updated. Bump __FreeBSD_version to 900030. 594 59520110103: 596 If you are trying to run make universe on a -stable system, and you get 597 the following warning: 598 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 599 unknown. config(8) likely too old." 600 or something similar to it, then you must upgrade your -stable system 601 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 602 stable/8) or build the config from the latest stable/8 branch and 603 install it on your system. 604 605 Prior to this date, building a current universe on 8-stable system from 606 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 607 error in the first kernel build phase. A new config on those old 608 systems will fix that problem for older versions of -current. 609 61020101228: 611 The TCP stack has been modified to allow Khelp modules to interact with 612 it via helper hook points and store per-connection data in the TCP 613 control block. Bump __FreeBSD_version to 900029. User space tools that 614 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 615 be recompiled. 616 61720101114: 618 Generic IEEE 802.3 annex 31B full duplex flow control support has been 619 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 620 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 621 to take advantage of it instead of using custom implementations. This 622 means that these drivers now no longer unconditionally advertise 623 support for flow control but only do so if flow control is a selected 624 media option. This was implemented in the generic support that way in 625 order to allow flow control to be switched on and off via ifconfig(8) 626 with the PHY specific default to typically off in order to protect 627 from unwanted effects. Consequently, if you used flow control with 628 one of the above mentioned drivers you now need to explicitly enable 629 it, for example via: 630 ifconfig bge0 media auto mediaopt flowcontrol 631 632 Along with the above mentioned changes generic support for setting 633 1000baseT master mode also has been added and brgphy(4), ciphy(4), 634 e1000phy(4) as well as ip1000phy(4) have been converted to take 635 advantage of it. This means that these drivers now no longer take the 636 link0 parameter for selecting master mode but the master media option 637 has to be used instead, for example like in the following: 638 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 639 640 Selection of master mode now is also available with all other PHY 641 drivers supporting 1000baseT. 642 64320101111: 644 The TCP stack has received a significant update to add support for 645 modularised congestion control and generally improve the clarity of 646 congestion control decisions. Bump __FreeBSD_version to 900025. User 647 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 648 sockstat) need to be recompiled. 649 65020101002: 651 The man(1) utility has been replaced by a new version that no longer 652 uses /etc/manpath.config. Please consult man.conf(5) for how to 653 migrate local entries to the new format. 654 65520100928: 656 The copyright strings printed by login(1) and sshd(8) at the time of a 657 new connection have been removed to follow other operating systems and 658 upstream sshd. 659 66020100915: 661 A workaround for a fixed ld bug has been removed in kernel code, 662 so make sure that your system ld is built from sources after 663 revision 210245 from 2010-07-19 (r211583 if building head kernel 664 on stable/8, r211584 for stable/7; both from 2010-08-21). 665 A symptom of incorrect ld version is different addresses for 666 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 667 66820100913: 669 The $ipv6_prefer variable in rc.conf(5) has been split into 670 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 671 672 The $ip6addrctl_policy is a variable to choose a pre-defined 673 address selection policy set by ip6addrctl(8). A value 674 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 675 default is "AUTO". 676 677 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 678 flag (see an entry of 20090926) is set on an interface with no 679 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 680 security reason. If you want IPv6 link-local address on all 681 interfaces by default, set this to "YES". 682 683 The old ipv6_prefer="YES" is equivalent to 684 ipv6_activate_all_interfaces="YES" and 685 ip6addrctl_policy="ipv6_prefer". 686 68720100913: 688 DTrace has grown support for userland tracing. Due to this, DTrace is 689 now i386 and amd64 only. 690 dtruss(1) is now installed by default on those systems and a new 691 kernel module is needed for userland tracing: fasttrap. 692 No changes to your kernel config file are necessary to enable 693 userland tracing, but you might consider adding 'STRIP=' and 694 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 695 to have informative userland stack traces in DTrace (ustack). 696 69720100725: 698 The acpi_aiboost(4) driver has been removed in favor of the new 699 aibs(4) driver. You should update your kernel configuration file. 700 70120100722: 702 BSD grep has been imported to the base system and it is built by 703 default. It is completely BSD licensed, highly GNU-compatible, uses 704 less memory than its GNU counterpart and has a small codebase. 705 However, it is slower than its GNU counterpart, which is mostly 706 noticeable for larger searches, for smaller ones it is measurable 707 but not significant. The reason is complex, the most important factor 708 is that we lack a modern and efficient regex library and GNU 709 overcomes this by optimizing the searches internally. Future work 710 on improving the regex performance is planned, for the meantime, 711 users that need better performance, can build GNU grep instead by 712 setting the WITH_GNU_GREP knob. 713 71420100713: 715 Due to the import of powerpc64 support, all existing powerpc kernel 716 configuration files must be updated with a machine directive like this: 717 machine powerpc powerpc 718 719 In addition, an updated config(8) is required to build powerpc kernels 720 after this change. 721 72220100713: 723 A new version of ZFS (version 15) has been merged to -HEAD. 724 This version uses a python library for the following subcommands: 725 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 726 For full functionality of these commands the following port must 727 be installed: sysutils/py-zfs 728 72920100429: 730 'vm_page's are now hashed by physical address to an array of mutexes. 731 Currently this is only used to serialize access to hold_count. Over 732 time the page queue mutex will be peeled away. This changes the size 733 of pmap on every architecture. And requires all callers of vm_page_hold 734 and vm_page_unhold to be updated. 735 73620100402: 737 WITH_CTF can now be specified in src.conf (not recommended, there 738 are some problems with static executables), make.conf (would also 739 affect ports which do not use GNU make and do not override the 740 compile targets) or in the kernel config (via "makeoptions 741 WITH_CTF=yes"). 742 When WITH_CTF was specified there before this was silently ignored, 743 so make sure that WITH_CTF is not used in places which could lead 744 to unwanted behavior. 745 74620100311: 747 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 748 to allow 32-bit compatibility on non-x86 platforms. All kernel 749 configurations on amd64 and ia64 platforms using these options must 750 be modified accordingly. 751 75220100113: 753 The utmp user accounting database has been replaced with utmpx, 754 the user accounting interface standardized by POSIX. 755 Unfortunately the semantics of utmp and utmpx don't match, 756 making it practically impossible to support both interfaces. 757 The user accounting database is used by tools like finger(1), 758 last(1), talk(1), w(1) and ac(8). 759 760 All applications in the base system use utmpx. This means only 761 local binaries (e.g. from the ports tree) may still use these 762 utmp database files. These applications must be rebuilt to make 763 use of utmpx. 764 765 After the system has been upgraded, it is safe to remove the old 766 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 767 assuming their contents is of no importance anymore. Old wtmp 768 databases can only be used by last(1) and ac(8) after they have 769 been converted to the new format using wtmpcvt(1). 770 77120100108: 772 Introduce the kernel thread "deadlock resolver" (which can be enabled 773 via the DEADLKRES option, see NOTES for more details) and the 774 sleepq_type() function for sleepqueues. 775 77620091202: 777 The rc.firewall and rc.firewall6 were unified, and 778 rc.firewall6 and rc.d/ip6fw were removed. 779 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 780 variables are obsoleted. Instead, the following new rc 781 variables are added to rc.d/ipfw: 782 783 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 784 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 785 firewall_simple_onet_ipv6, firewall_trusted_ipv6 786 787 The meanings correspond to the relevant IPv4 variables. 788 78920091125: 790 8.0-RELEASE. 791 79220091113: 793 The default terminal emulation for syscons(4) has been changed 794 from cons25 to xterm on all platforms except pc98. This means 795 that the /etc/ttys file needs to be updated to ensure correct 796 operation of applications on the console. 797 798 The terminal emulation style can be toggled per window by using 799 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 800 options can be used to change the compile-time default back to 801 cons25. 802 803 To prevent graphical artifacts, make sure the TERM environment 804 variable is set to match the terminal emulation that is being 805 performed by syscons(4). 806 80720091109: 808 The layout of the structure ieee80211req_scan_result has changed. 809 Applications that require wireless scan results (e.g. ifconfig(8)) 810 from net80211 need to be recompiled. 811 812 Applications such as wpa_supplicant(8) may require a full world 813 build without using NO_CLEAN in order to get synchronized with the 814 new structure. 815 81620091025: 817 The iwn(4) driver has been updated to support the 5000 and 5150 series. 818 There's one kernel module for each firmware. Adding "device iwnfw" 819 to the kernel configuration file means including all three firmware 820 images inside the kernel. If you want to include just the one for 821 your wireless card, use the devices iwn4965fw, iwn5000fw or 822 iwn5150fw. 823 82420090926: 825 The rc.d/network_ipv6, IPv6 configuration script has been integrated 826 into rc.d/netif. The changes are the following: 827 828 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 829 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 830 Note that both variables need the "inet6" keyword at the head. 831 832 Do not set $ipv6_network_interfaces manually if you do not 833 understand what you are doing. It is not needed in most cases. 834 835 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 836 they are obsolete. 837 838 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 839 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 840 841 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 842 all configured interfaces have "inet6 accept_rtadv" in the 843 $ifconfig_IF_ipv6. These are for backward compatibility. 844 845 3. A new variable $ipv6_prefer has been added. If NO, IPv6 846 functionality of interfaces with no corresponding 847 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 848 and the default address selection policy of ip6addrctl(8) 849 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 850 Note that if you want to configure IPv6 functionality on the 851 disabled interfaces after boot, first you need to clear the flag by 852 using ifconfig(8) like: 853 854 ifconfig em0 inet6 -ifdisabled 855 856 If YES, the default address selection policy is set as 857 IPv6-preferred. 858 859 The default value of $ipv6_prefer is NO. 860 861 4. If your system need to receive Router Advertisement messages, 862 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 863 scripts automatically invoke rtsol(8) when the interface becomes 864 UP. The Router Advertisement messages are used for SLAAC 865 (State-Less Address AutoConfiguration). 866 86720090922: 868 802.11s D3.03 support was committed. This is incompatible with the 869 previous code, which was based on D3.0. 870 87120090912: 872 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 873 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 874 control whether accepting Router Advertisement messages or not. 875 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 876 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 877 The ifconfig(8) utility now supports these flags. 878 87920090910: 880 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 881 mount(8) and -a option for df(1) to see them. 882 88320090825: 884 The old tunable hw.bus.devctl_disable has been superseded by 885 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 886 replaced by hw.bus.devctl_queue=0. The default for this new tunable 887 is 1000. 888 88920090813: 890 Remove the option STOP_NMI. The default action is now to use NMI only 891 for KDB via the newly introduced function stop_cpus_hard() and 892 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 893 89420090803: 895 The stable/8 branch created in subversion. This corresponds to the 896 RELENG_8 branch in CVS. 897 89820090719: 899 Bump the shared library version numbers for all libraries that do not 900 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 901 __FreeBSD_version to 800105. 902 90320090714: 904 Due to changes in the implementation of virtual network stack support, 905 all network-related kernel modules must be recompiled. As this change 906 breaks the ABI, bump __FreeBSD_version to 800104. 907 90820090713: 909 The TOE interface to the TCP syncache has been modified to remove 910 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 911 The cxgb driver is the only TOE consumer affected by this change, and 912 needs to be recompiled along with the kernel. As this change breaks 913 the ABI, bump __FreeBSD_version to 800103. 914 91520090712: 916 Padding has been added to struct tcpcb, sackhint and tcpstat in 917 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 918 maintaining the ABI. However, this change breaks the ABI, so bump 919 __FreeBSD_version to 800102. User space tools that rely on the size of 920 any of these structs (e.g. sockstat) need to be recompiled. 921 92220090630: 923 The NFS_LEGACYRPC option has been removed along with the old kernel 924 RPC implementation that this option selected. Kernel configurations 925 may need to be adjusted. 926 92720090629: 928 The network interface device nodes at /dev/net/<interface> have been 929 removed. All ioctl operations can be performed the normal way using 930 routing sockets. The kqueue functionality can generally be replaced 931 with routing sockets. 932 93320090628: 934 The documentation from the FreeBSD Documentation Project (Handbook, 935 FAQ, etc.) is now installed via packages by sysinstall(8) and under 936 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 937 93820090624: 939 The ABI of various structures related to the SYSV IPC API have been 940 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 941 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 942 800100. 943 94420090622: 945 Layout of struct vnet has changed as routing related variables were 946 moved to their own Vimage module. Modules need to be recompiled. Bump 947 __FreeBSD_version to 800099. 948 94920090619: 950 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 951 respectively. As long as no more than 16 groups per process are used, 952 no changes should be visible. When more than 16 groups are used, old 953 binaries may fail if they call getgroups() or getgrouplist() with 954 statically sized storage. Recompiling will work around this, but 955 applications should be modified to use dynamically allocated storage 956 for group arrays as POSIX.1-2008 does not cap an implementation's 957 number of supported groups at NGROUPS_MAX+1 as previous versions did. 958 959 NFS and portalfs mounts may also be affected as the list of groups is 960 truncated to 16. Users of NFS who use more than 16 groups, should 961 take care that negative group permissions are not used on the exported 962 file systems as they will not be reliable unless a GSSAPI based 963 authentication method is used. 964 96520090616: 966 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 967 option compiles in the support for adaptive spinning for lockmgrs 968 which want to enable it. The lockinit() function now accepts the flag 969 LK_ADAPTIVE in order to make the lock object subject to adaptive 970 spinning when both held in write and read mode. 971 97220090613: 973 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 974 changed. User applications that use this ioctl need to be rebuilt. 975 97620090611: 977 The layout of struct thread has changed. Kernel and modules need to 978 be rebuilt. 979 98020090608: 981 The layout of structs ifnet, domain, protosw and vnet_net has changed. 982 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 983 98420090602: 985 window(1) has been removed from the base system. It can now be 986 installed from ports. The port is called misc/window. 987 98820090601: 989 The way we are storing and accessing `routing table' entries has 990 changed. Programs reading the FIB, like netstat, need to be 991 re-compiled. 992 99320090601: 994 A new netisr implementation has been added for FreeBSD 8. Network 995 file system modules, such as igmp, ipdivert, and others, should be 996 rebuilt. 997 Bump __FreeBSD_version to 800096. 998 99920090530: 1000 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1001 more valid. 1002 100320090530: 1004 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1005 Bump __FreeBSD_version to 800094. 1006 100720090529: 1008 Add mnt_xflag field to 'struct mount'. File system modules need to be 1009 rebuilt. 1010 Bump __FreeBSD_version to 800093. 1011 101220090528: 1013 The compiling option ADAPTIVE_SX has been retired while it has been 1014 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1015 The KPI for sx_init_flags() changes as accepting flags: 1016 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1017 been introduced in order to handle the reversed logic. 1018 Bump __FreeBSD_version to 800092. 1019 102020090527: 1021 Add support for hierarchical jails. Remove global securelevel. 1022 Bump __FreeBSD_version to 800091. 1023 102420090523: 1025 The layout of struct vnet_net has changed, therefore modules 1026 need to be rebuilt. 1027 Bump __FreeBSD_version to 800090. 1028 102920090523: 1030 The newly imported zic(8) produces a new format in the output. Please 1031 run tzsetup(8) to install the newly created data to /etc/localtime. 1032 103320090520: 1034 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1035 hw.usb.* and is now consistent again with previous releases. 1036 103720090520: 1038 802.11 monitor mode support was revised and driver api's were changed. 1039 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1040 of DLT_IEEE802_11. No user-visible data structures were changed but 1041 applications that use DLT_IEEE802_11 may require changes. 1042 Bump __FreeBSD_version to 800088. 1043 104420090430: 1045 The layout of the following structs has changed: sysctl_oid, 1046 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1047 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1048 panics may be experienced. World rebuild is required for 1049 correctly checking networking state from userland. 1050 Bump __FreeBSD_version to 800085. 1051 105220090429: 1053 MLDv2 and Source-Specific Multicast (SSM) have been merged 1054 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1055 The implementation of SSM within FreeBSD's IPv6 stack closely 1056 follows the IPv4 implementation. 1057 1058 For kernel developers: 1059 1060 * The most important changes are that the ip6_output() and 1061 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1062 and this lock has been downgraded to a non-recursive mutex. 1063 1064 * As with the changes to the IPv4 stack to support SSM, filtering 1065 of inbound multicast traffic must now be performed by transport 1066 protocols within the IPv6 stack. This does not apply to TCP and 1067 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1068 1069 * The KPIs used by IPv6 multicast are similar to those used by 1070 the IPv4 stack, with the following differences: 1071 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1072 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1073 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1074 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1075 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1076 for MLDv1 have an additional 'timer' argument which is used to 1077 jitter the initial membership report for the solicited-node 1078 multicast membership on-link. 1079 * This is not strictly needed for MLDv2, which already jitters 1080 its report transmissions. However, the 'timer' argument is 1081 preserved in case MLDv1 is active on the interface. 1082 1083 * The KAME linked-list based IPv6 membership implementation has 1084 been refactored to use a vector similar to that used by the IPv4 1085 stack. 1086 Code which maintains a list of its own multicast memberships 1087 internally, e.g. carp, has been updated to reflect the new 1088 semantics. 1089 1090 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1091 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1092 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1093 implementation constraint which needs to be addressed in HEAD. 1094 1095 For application developers: 1096 1097 * The changes are broadly similar to those made for the IPv4 1098 stack. 1099 1100 * The use of IPv4 and IPv6 multicast socket options on the same 1101 socket, using mapped addresses, HAS NOT been tested or supported. 1102 1103 * There are a number of issues with the implementation of various 1104 IPv6 multicast APIs which need to be resolved in the API surface 1105 before the implementation is fully compatible with KAME userland 1106 use, and these are mostly to do with interface index treatment. 1107 1108 * The literature available discusses the use of either the delta / ASM 1109 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1110 using setsourcefilter(3)/getsourcefilter(3). For more information 1111 please refer to RFC 3768, 'Socket Interface Extensions for 1112 Multicast Source Filters'. 1113 1114 * Applications which use the published RFC 3678 APIs should be fine. 1115 1116 For systems administrators: 1117 1118 * The mtest(8) utility has been refactored to support IPv6, in 1119 addition to IPv4. Interface addresses are no longer accepted 1120 as arguments, their names must be used instead. The utility 1121 will map the interface name to its first IPv4 address as 1122 returned by getifaddrs(3). 1123 1124 * The ifmcstat(8) utility has also been updated to print the MLDv2 1125 endpoint state and source filter lists via sysctl(3). 1126 1127 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1128 loopback of IPv6 multicast datagrams by default; it defaults to 1 1129 to preserve the existing behaviour. Disabling multicast loopback is 1130 recommended for optimal system performance. 1131 1132 * The IPv6 MROUTING code has been changed to examine this sysctl 1133 instead of attempting to perform a group lookup before looping 1134 back forwarded datagrams. 1135 1136 Bump __FreeBSD_version to 800084. 1137 113820090422: 1139 Implement low-level Bluetooth HCI API. 1140 Bump __FreeBSD_version to 800083. 1141 114220090419: 1143 The layout of struct malloc_type, used by modules to register new 1144 memory allocation types, has changed. Most modules will need to 1145 be rebuilt or panics may be experienced. 1146 Bump __FreeBSD_version to 800081. 1147 114820090415: 1149 Anticipate overflowing inp_flags - add inp_flags2. 1150 This changes most offsets in inpcb, so checking v4 connection 1151 state will require a world rebuild. 1152 Bump __FreeBSD_version to 800080. 1153 115420090415: 1155 Add an llentry to struct route and struct route_in6. Modules 1156 embedding a struct route will need to be recompiled. 1157 Bump __FreeBSD_version to 800079. 1158 115920090414: 1160 The size of rt_metrics_lite and by extension rtentry has changed. 1161 Networking administration apps will need to be recompiled. 1162 The route command now supports show as an alias for get, weighting 1163 of routes, sticky and nostick flags to alter the behavior of stateful 1164 load balancing. 1165 Bump __FreeBSD_version to 800078. 1166 116720090408: 1168 Do not use Giant for kbdmux(4) locking. This is wrong and 1169 apparently causing more problems than it solves. This will 1170 re-open the issue where interrupt handlers may race with 1171 kbdmux(4) in polling mode. Typical symptoms include (but 1172 not limited to) duplicated and/or missing characters when 1173 low level console functions (such as gets) are used while 1174 interrupts are enabled (for example geli password prompt, 1175 mountroot prompt etc.). Disabling kbdmux(4) may help. 1176 117720090407: 1178 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1179 kernel modules referencing any of the above need to be recompiled. 1180 Bump __FreeBSD_version to 800075. 1181 118220090320: 1183 GEOM_PART has become the default partition slicer for storage devices, 1184 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1185 introduces some changes: 1186 1187 MSDOS/EBR: the devices created from MSDOS extended partition entries 1188 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1189 to devices with offset-based names. fstabs may need to be modified. 1190 1191 BSD: the "geometry does not match label" warning is harmless in most 1192 cases but it points to problems in file system misalignment with 1193 disk geometry. The "c" partition is now implicit, covers the whole 1194 top-level drive and cannot be (mis)used by users. 1195 1196 General: Kernel dumps are now not allowed to be written to devices 1197 whose partition types indicate they are meant to be used for file 1198 systems (or, in case of MSDOS partitions, as something else than 1199 the "386BSD" type). 1200 1201 Most of these changes date approximately from 200812. 1202 120320090319: 1204 The uscanner(4) driver has been removed from the kernel. This follows 1205 Linux removing theirs in 2.6 and making libusb the default interface 1206 (supported by sane). 1207 120820090319: 1209 The multicast forwarding code has been cleaned up. netstat(1) 1210 only relies on KVM now for printing bandwidth upcall meters. 1211 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1212 ip6_mroute_mod respectively. The config(5) options for statically 1213 compiling this code remain the same, i.e. 'options MROUTING'. 1214 121520090315: 1216 Support for the IFF_NEEDSGIANT network interface flag has been 1217 removed, which means that non-MPSAFE network device drivers are no 1218 longer supported. In particular, if_ar, if_sr, and network device 1219 drivers from the old (legacy) USB stack can no longer be built or 1220 used. 1221 122220090313: 1223 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1224 a bunch of new language catalog files have also been added. 1225 This means that some common libc messages are now localized and 1226 they depend on the LC_MESSAGES environmental variable. 1227 122820090313: 1229 The k8temp(4) driver has been renamed to amdtemp(4) since 1230 support for Family 10 and Family 11 CPU families was added. 1231 123220090309: 1233 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1234 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1235 1236 For kernel developers, the most important changes are that the 1237 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1238 and this lock has been downgraded to a non-recursive mutex. 1239 1240 Transport protocols (UDP, Raw IP) are now responsible for filtering 1241 inbound multicast traffic according to group membership and source 1242 filters. The imo_multicast_filter() KPI exists for this purpose. 1243 Transports which do not use multicast (SCTP, TCP) already reject 1244 multicast by default. Forwarding and receive performance may improve 1245 as a mutex acquisition is no longer needed in the ip_input() 1246 low-level input path. in_addmulti() and in_delmulti() are shimmed 1247 to new KPIs which exist to support SSM in-kernel. 1248 1249 For application developers, it is recommended that loopback of 1250 multicast datagrams be disabled for best performance, as this 1251 will still cause the lock to be taken for each looped-back 1252 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1253 be tuned to 0 to disable loopback by default; it defaults to 1 1254 to preserve the existing behaviour. 1255 1256 For systems administrators, to obtain best performance with 1257 multicast reception and multiple groups, it is always recommended 1258 that a card with a suitably precise hash filter is used. Hash 1259 collisions will still result in the lock being taken within the 1260 transport protocol input path to check group membership. 1261 1262 If deploying FreeBSD in an environment with IGMP snooping switches, 1263 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1264 enabled; this forces 224.0.0.0/24 group membership to be announced 1265 via IGMP. 1266 1267 The size of 'struct igmpstat' has changed; netstat needs to be 1268 recompiled to reflect this. 1269 Bump __FreeBSD_version to 800070. 1270 127120090309: 1272 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1273 updated to use it. This requires a buildworld/installworld in order to 1274 update the library and dependencies (usbconfig, etc). Its advisable to 1275 rebuild all ports which uses libusb. More specific directions are given 1276 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1277 libusb are no longer required and can be removed. 1278 127920090302: 1280 A workaround is committed to allow the creation of System V shared 1281 memory segment of size > 2 GB on the 64-bit architectures. 1282 Due to a limitation of the existing ABI, the shm_segsz member 1283 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1284 wrong for large segments. Note that limits must be explicitly 1285 raised to allow such segments to be created. 1286 128720090301: 1288 The layout of struct ifnet has changed, requiring a rebuild of all 1289 network device driver modules. 1290 129120090227: 1292 The /dev handling for the new USB stack has changed, a 1293 buildworld/installworld is required for libusb20. 1294 129520090223: 1296 The new USB2 stack has now been permanently moved in and all kernel and 1297 module names reverted to their previous values (eg, usb, ehci, ohci, 1298 ums, ...). The old usb stack can be compiled in by prefixing the name 1299 with the letter 'o', the old usb modules have been removed. 1300 Updating entry 20090216 for xorg and 20090215 for libmap may still 1301 apply. 1302 130320090217: 1304 The rc.conf(5) option if_up_delay has been renamed to 1305 defaultroute_delay to better reflect its purpose. If you have 1306 customized this setting in /etc/rc.conf you need to update it to 1307 use the new name. 1308 130920090216: 1310 xorg 7.4 wants to configure its input devices via hald which does not 1311 yet work with USB2. If the keyboard/mouse does not work in xorg then 1312 add 1313 Option "AllowEmptyInput" "off" 1314 to your ServerLayout section. This will cause X to use the configured 1315 kbd and mouse sections from your xorg.conf. 1316 131720090215: 1318 The GENERIC kernels for all architectures now default to the new USB2 1319 stack. No kernel config options or code have been removed so if a 1320 problem arises please report it and optionally revert to the old USB 1321 stack. If you are loading USB kernel modules or have a custom kernel 1322 that includes GENERIC then ensure that usb names are also changed over, 1323 eg uftdi -> usb2_serial_ftdi. 1324 1325 Older programs linked against the ports libusb 0.1 need to be 1326 redirected to the new stack's libusb20. /etc/libmap.conf can 1327 be used for this: 1328 # Map old usb library to new one for usb2 stack 1329 libusb-0.1.so.8 libusb20.so.1 1330 133120090209: 1332 All USB ethernet devices now attach as interfaces under the name ueN 1333 (eg. ue0). This is to provide a predictable name as vendors often 1334 change usb chipsets in a product without notice. 1335 133620090203: 1337 The ichsmb(4) driver has been changed to require SMBus slave 1338 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1339 All of the other SMBus controller drivers require left-justified 1340 slave addresses, so this change makes all the drivers provide the 1341 same interface. 1342 134320090201: 1344 INET6 statistics (struct ip6stat) was updated. 1345 netstat(1) needs to be recompiled. 1346 134720090119: 1348 NTFS has been removed from GENERIC kernel on amd64 to match 1349 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1350 will load ntfs.ko module automatically when NTFS support is 1351 actually needed, unless ntfs.ko is not installed or security 1352 level prohibits loading kernel modules. If either is the case, 1353 "options NTFS" has to be added into kernel config. 1354 135520090115: 1356 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1357 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1358 800061. User space tools that rely on the size of struct tcpcb in 1359 tcp_var.h (e.g. sockstat) need to be recompiled. 1360 136120081225: 1362 ng_tty(4) module updated to match the new TTY subsystem. 1363 Due to API change, user-level applications must be updated. 1364 New API support added to mpd5 CVS and expected to be present 1365 in next mpd5.3 release. 1366 136720081219: 1368 With __FreeBSD_version 800060 the makefs tool is part of 1369 the base system (it was a port). 1370 137120081216: 1372 The afdata and ifnet locks have been changed from mutexes to 1373 rwlocks, network modules will need to be re-compiled. 1374 137520081214: 1376 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1377 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1378 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1379 architecture and 40 bytes on 64-bit architecture. The userland 1380 applications "arp" and "ndp" have been updated accordingly. 1381 The output from "netstat -r" shows only routing entries and 1382 none of the L2 information. 1383 138420081130: 1385 __FreeBSD_version 800057 marks the switchover from the 1386 binary ath hal to source code. Users must add the line: 1387 1388 options AH_SUPPORT_AR5416 1389 1390 to their kernel config files when specifying: 1391 1392 device ath_hal 1393 1394 The ath_hal module no longer exists; the code is now compiled 1395 together with the driver in the ath module. It is now 1396 possible to tailor chip support (i.e. reduce the set of chips 1397 and thereby the code size); consult ath_hal(4) for details. 1398 139920081121: 1400 __FreeBSD_version 800054 adds memory barriers to 1401 <machine/atomic.h>, new interfaces to ifnet to facilitate 1402 multiple hardware transmit queues for cards that support 1403 them, and a lock-less ring-buffer implementation to 1404 enable drivers to more efficiently manage queueing of 1405 packets. 1406 140720081117: 1408 A new version of ZFS (version 13) has been merged to -HEAD. 1409 This version has zpool attribute "listsnapshots" off by 1410 default, which means "zfs list" does not show snapshots, 1411 and is the same as Solaris behavior. 1412 141320081028: 1414 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1415 141620081009: 1417 The uhci, ohci, ehci and slhci USB Host controller drivers have 1418 been put into separate modules. If you load the usb module 1419 separately through loader.conf you will need to load the 1420 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1421 controller add the following to loader.conf: 1422 1423 uhci_load="YES" 1424 ehci_load="YES" 1425 142620081009: 1427 The ABI used by the PMC toolset has changed. Please keep 1428 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1429 sync. 1430 143120081009: 1432 atapci kernel module now includes only generic PCI ATA 1433 driver. AHCI driver moved to ataahci kernel module. 1434 All vendor-specific code moved into separate kernel modules: 1435 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1436 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1437 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1438 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1439 144020080820: 1441 The TTY subsystem of the kernel has been replaced by a new 1442 implementation, which provides better scalability and an 1443 improved driver model. Most common drivers have been migrated to 1444 the new TTY subsystem, while others have not. The following 1445 drivers have not yet been ported to the new TTY layer: 1446 1447 PCI/ISA: 1448 cy, digi, rc, rp, sio 1449 1450 USB: 1451 ubser, ucycom 1452 1453 Line disciplines: 1454 ng_h4, ng_tty, ppp, sl, snp 1455 1456 Adding these drivers to your kernel configuration file shall 1457 cause compilation to fail. 1458 145920080818: 1460 ntpd has been upgraded to 4.2.4p5. 1461 146220080801: 1463 OpenSSH has been upgraded to 5.1p1. 1464 1465 For many years, FreeBSD's version of OpenSSH preferred DSA 1466 over RSA for host and user authentication keys. With this 1467 upgrade, we've switched to the vendor's default of RSA over 1468 DSA. This may cause upgraded clients to warn about unknown 1469 host keys even for previously known hosts. Users should 1470 follow the usual procedure for verifying host keys before 1471 accepting the RSA key. 1472 1473 This can be circumvented by setting the "HostKeyAlgorithms" 1474 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1475 command line. 1476 1477 Please note that the sequence of keys offered for 1478 authentication has been changed as well. You may want to 1479 specify IdentityFile in a different order to revert this 1480 behavior. 1481 148220080713: 1483 The sio(4) driver has been removed from the i386 and amd64 1484 kernel configuration files. This means uart(4) is now the 1485 default serial port driver on those platforms as well. 1486 1487 To prevent collisions with the sio(4) driver, the uart(4) driver 1488 uses different names for its device nodes. This means the 1489 onboard serial port will now most likely be called "ttyu0" 1490 instead of "ttyd0". You may need to reconfigure applications to 1491 use the new device names. 1492 1493 When using the serial port as a boot console, be sure to update 1494 /boot/device.hints and /etc/ttys before booting the new kernel. 1495 If you forget to do so, you can still manually specify the hints 1496 at the loader prompt: 1497 1498 set hint.uart.0.at="isa" 1499 set hint.uart.0.port="0x3F8" 1500 set hint.uart.0.flags="0x10" 1501 set hint.uart.0.irq="4" 1502 boot -s 1503 150420080609: 1505 The gpt(8) utility has been removed. Use gpart(8) to partition 1506 disks instead. 1507 150820080603: 1509 The version that Linuxulator emulates was changed from 2.4.2 1510 to 2.6.16. If you experience any problems with Linux binaries 1511 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1512 if it fixes the problem contact emulation mailing list. 1513 151420080525: 1515 ISDN4BSD (I4B) was removed from the src tree. You may need to 1516 update a your kernel configuration and remove relevant entries. 1517 151820080509: 1519 I have checked in code to support multiple routing tables. 1520 See the man pages setfib(1) and setfib(2). 1521 This is a hopefully backwards compatible version, 1522 but to make use of it you need to compile your kernel 1523 with options ROUTETABLES=2 (or more up to 16). 1524 152520080420: 1526 The 802.11 wireless support was redone to enable multi-bss 1527 operation on devices that are capable. The underlying device 1528 is no longer used directly but instead wlanX devices are 1529 cloned with ifconfig. This requires changes to rc.conf files. 1530 For example, change: 1531 ifconfig_ath0="WPA DHCP" 1532 to 1533 wlans_ath0=wlan0 1534 ifconfig_wlan0="WPA DHCP" 1535 see rc.conf(5) for more details. In addition, mergemaster of 1536 /etc/rc.d is highly recommended. Simultaneous update of userland 1537 and kernel wouldn't hurt either. 1538 1539 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1540 modules were merged into the base wlan module. All references 1541 to these modules (e.g. in kernel config files) must be removed. 1542 154320080408: 1544 psm(4) has gained write(2) support in native operation level. 1545 Arbitrary commands can be written to /dev/psm%d and status can 1546 be read back from it. Therefore, an application is responsible 1547 for status validation and error recovery. It is a no-op in 1548 other operation levels. 1549 155020080312: 1551 Support for KSE threading has been removed from the kernel. To 1552 run legacy applications linked against KSE libmap.conf may 1553 be used. The following libmap.conf may be used to ensure 1554 compatibility with any prior release: 1555 1556 libpthread.so.1 libthr.so.1 1557 libpthread.so.2 libthr.so.2 1558 libkse.so.3 libthr.so.3 1559 156020080301: 1561 The layout of struct vmspace has changed. This affects libkvm 1562 and any executables that link against libkvm and use the 1563 kvm_getprocs() function. In particular, but not exclusively, 1564 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1565 The effects are minimal, but it's advisable to upgrade world 1566 nonetheless. 1567 156820080229: 1569 The latest em driver no longer has support in it for the 1570 82575 adapter, this is now moved to the igb driver. The 1571 split was done to make new features that are incompatible 1572 with older hardware easier to do. 1573 157420080220: 1575 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1576 likewise the kernel option is now GEOM_LINUX_LVM. 1577 157820080211: 1579 The default NFS mount mode has changed from UDP to TCP for 1580 increased reliability. If you rely on (insecurely) NFS 1581 mounting across a firewall you may need to update your 1582 firewall rules. 1583 158420080208: 1585 Belatedly note the addition of m_collapse for compacting 1586 mbuf chains. 1587 158820080126: 1589 The fts(3) structures have been changed to use adequate 1590 integer types for their members and so to be able to cope 1591 with huge file trees. The old fts(3) ABI is preserved 1592 through symbol versioning in libc, so third-party binaries 1593 using fts(3) should still work, although they will not take 1594 advantage of the extended types. At the same time, some 1595 third-party software might fail to build after this change 1596 due to unportable assumptions made in its source code about 1597 fts(3) structure members. Such software should be fixed 1598 by its vendor or, in the worst case, in the ports tree. 1599 FreeBSD_version 800015 marks this change for the unlikely 1600 case that a portable fix is impossible. 1601 160220080123: 1603 To upgrade to -current after this date, you must be running 1604 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1605 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1606 160720071128: 1608 The ADAPTIVE_GIANT kernel option has been retired because its 1609 functionality is the default now. 1610 161120071118: 1612 The AT keyboard emulation of sunkbd(4) has been turned on 1613 by default. In order to make the special symbols of the Sun 1614 keyboards driven by sunkbd(4) work under X these now have 1615 to be configured the same way as Sun USB keyboards driven 1616 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1617 1618 Option "XkbLayout" "us" 1619 Option "XkbRules" "xorg" 1620 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1621 162220071024: 1623 It has been decided that it is desirable to provide ABI 1624 backwards compatibility to the FreeBSD 4/5/6 versions of the 1625 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1626 broken with the introduction of PCI domain support (see the 1627 20070930 entry). Unfortunately, this required the ABI of 1628 PCIOCGETCONF to be broken again in order to be able to 1629 provide backwards compatibility to the old version of that 1630 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1631 again. As for prominent ports this affects neither pciutils 1632 nor xorg-server this time, the hal port needs to be rebuilt 1633 however. 1634 163520071020: 1636 The misnamed kthread_create() and friends have been renamed 1637 to kproc_create() etc. Many of the callers already 1638 used kproc_start().. 1639 I will return kthread_create() and friends in a while 1640 with implementations that actually create threads, not procs. 1641 Renaming corresponds with version 800002. 1642 164320071010: 1644 RELENG_7 branched. 1645 1646COMMON ITEMS: 1647 1648 General Notes 1649 ------------- 1650 Avoid using make -j when upgrading. While generally safe, there are 1651 sometimes problems using -j to upgrade. If your upgrade fails with 1652 -j, please try again without -j. From time to time in the past there 1653 have been problems using -j with buildworld and/or installworld. This 1654 is especially true when upgrading between "distant" versions (eg one 1655 that cross a major release boundary or several minor releases, or when 1656 several months have passed on the -current branch). 1657 1658 Sometimes, obscure build problems are the result of environment 1659 poisoning. This can happen because the make utility reads its 1660 environment when searching for values for global variables. To run 1661 your build attempts in an "environmental clean room", prefix all make 1662 commands with 'env -i '. See the env(1) manual page for more details. 1663 1664 When upgrading from one major version to another it is generally best 1665 to upgrade to the latest code in the currently installed branch first, 1666 then do an upgrade to the new branch. This is the best-tested upgrade 1667 path, and has the highest probability of being successful. Please try 1668 this approach before reporting problems with a major version upgrade. 1669 1670 ZFS notes 1671 --------- 1672 When upgrading the boot ZFS pool to a new version, always follow 1673 these two steps: 1674 1675 1.) recompile and reinstall the ZFS boot loader and boot block 1676 (this is part of "make buildworld" and "make installworld") 1677 1678 2.) update the ZFS boot block on your boot drive 1679 1680 The following example updates the ZFS boot block on the first 1681 partition (freebsd-boot) of a GPT partitioned drive ad0: 1682 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1683 1684 Non-boot pools do not need these updates. 1685 1686 To build a kernel 1687 ----------------- 1688 If you are updating from a prior version of FreeBSD (even one just 1689 a few days old), you should follow this procedure. It is the most 1690 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1691 1692 make kernel-toolchain 1693 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1694 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1695 1696 To test a kernel once 1697 --------------------- 1698 If you just want to boot a kernel once (because you are not sure 1699 if it works, or if you want to boot a known bad kernel to provide 1700 debugging information) run 1701 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1702 nextboot -k testkernel 1703 1704 To just build a kernel when you know that it won't mess you up 1705 -------------------------------------------------------------- 1706 This assumes you are already running a CURRENT system. Replace 1707 ${arch} with the architecture of your machine (e.g. "i386", 1708 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1709 1710 cd src/sys/${arch}/conf 1711 config KERNEL_NAME_HERE 1712 cd ../compile/KERNEL_NAME_HERE 1713 make depend 1714 make 1715 make install 1716 1717 If this fails, go to the "To build a kernel" section. 1718 1719 To rebuild everything and install it on the current system. 1720 ----------------------------------------------------------- 1721 # Note: sometimes if you are running current you gotta do more than 1722 # is listed here if you are upgrading from a really old current. 1723 1724 <make sure you have good level 0 dumps> 1725 make buildworld 1726 make kernel KERNCONF=YOUR_KERNEL_HERE 1727 [1] 1728 <reboot in single user> [3] 1729 mergemaster -p [5] 1730 make installworld 1731 mergemaster -i [4] 1732 make delete-old [6] 1733 <reboot> 1734 1735 1736 To cross-install current onto a separate partition 1737 -------------------------------------------------- 1738 # In this approach we use a separate partition to hold 1739 # current's root, 'usr', and 'var' directories. A partition 1740 # holding "/", "/usr" and "/var" should be about 2GB in 1741 # size. 1742 1743 <make sure you have good level 0 dumps> 1744 <boot into -stable> 1745 make buildworld 1746 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1747 <maybe newfs current's root partition> 1748 <mount current's root partition on directory ${CURRENT_ROOT}> 1749 make installworld DESTDIR=${CURRENT_ROOT} 1750 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1751 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1752 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1753 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1754 <reboot into current> 1755 <do a "native" rebuild/install as described in the previous section> 1756 <maybe install compatibility libraries from ports/misc/compat*> 1757 <reboot> 1758 1759 1760 To upgrade in-place from stable to current 1761 ---------------------------------------------- 1762 <make sure you have good level 0 dumps> 1763 make buildworld [9] 1764 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1765 [1] 1766 <reboot in single user> [3] 1767 mergemaster -p [5] 1768 make installworld 1769 mergemaster -i [4] 1770 make delete-old [6] 1771 <reboot> 1772 1773 Make sure that you've read the UPDATING file to understand the 1774 tweaks to various things you need. At this point in the life 1775 cycle of current, things change often and you are on your own 1776 to cope. The defaults can also change, so please read ALL of 1777 the UPDATING entries. 1778 1779 Also, if you are tracking -current, you must be subscribed to 1780 freebsd-current@freebsd.org. Make sure that before you update 1781 your sources that you have read and understood all the recent 1782 messages there. If in doubt, please track -stable which has 1783 much fewer pitfalls. 1784 1785 [1] If you have third party modules, such as vmware, you 1786 should disable them at this point so they don't crash your 1787 system on reboot. 1788 1789 [3] From the bootblocks, boot -s, and then do 1790 fsck -p 1791 mount -u / 1792 mount -a 1793 cd src 1794 adjkerntz -i # if CMOS is wall time 1795 Also, when doing a major release upgrade, it is required that 1796 you boot into single user mode to do the installworld. 1797 1798 [4] Note: This step is non-optional. Failure to do this step 1799 can result in a significant reduction in the functionality of the 1800 system. Attempting to do it by hand is not recommended and those 1801 that pursue this avenue should read this file carefully, as well 1802 as the archives of freebsd-current and freebsd-hackers mailing lists 1803 for potential gotchas. The -U option is also useful to consider. 1804 See mergemaster(8) for more information. 1805 1806 [5] Usually this step is a noop. However, from time to time 1807 you may need to do this if you get unknown user in the following 1808 step. It never hurts to do it all the time. You may need to 1809 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1810 install) after the buildworld before this step if you last updated 1811 from [78]-stable or 9-stable before 20130430. 1812 1813 [6] This only deletes old files and directories. Old libraries 1814 can be deleted by "make delete-old-libs", but you have to make 1815 sure that no program is using those libraries anymore. 1816 1817 [8] In order to have a kernel that can run the 4.x binaries needed to 1818 do an installworld, you must include the COMPAT_FREEBSD4 option in 1819 your kernel. Failure to do so may leave you with a system that is 1820 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1821 required to run the 5.x binaries on more recent kernels. And so on 1822 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1823 1824 Make sure that you merge any new devices from GENERIC since the 1825 last time you updated your kernel config file. 1826 1827 [9] When checking out sources, you must include the -P flag to have 1828 cvs prune empty directories. 1829 1830 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1831 "?=" instead of the "=" assignment operator, so that buildworld can 1832 override the CPUTYPE if it needs to. 1833 1834 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1835 not on the command line, or in /etc/make.conf. buildworld will 1836 warn if it is improperly defined. 1837FORMAT: 1838 1839This file contains a list, in reverse chronological order, of major 1840breakages in tracking -current. It is not guaranteed to be a complete 1841list of such breakages, and only contains entries since October 10, 2007. 1842If you need to see UPDATING entries from before that date, you will need 1843to fetch an UPDATING file from an older FreeBSD release. 1844 1845Copyright information: 1846 1847Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1848 1849Redistribution, publication, translation and use, with or without 1850modification, in full or in part, in any form or format of this 1851document are permitted without further permission from the author. 1852 1853THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1854IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1855WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1856DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1857INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1858(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1859SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1860HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1861STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1862IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1863POSSIBILITY OF SUCH DAMAGE. 1864 1865Contact Warner Losh if you have any questions about your use of 1866this document. 1867 1868$FreeBSD: releng/9.3/UPDATING 290001 2015-10-26 11:42:25Z glebius $ 1869