UPDATING revision 285980
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 1420150728: p21 FreeBSD-SA-15:15.tcp 15 FreeBSD-SA-15:16.openssh 16 FreeBSD-SA-15:17.bind 17 18 Fix resource exhaustion in TCP reassembly. [SA-15:15] 19 20 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 21 22 Fix BIND remote denial of service vulnerability. [SA-15:17] 23 2420150721: p20 FreeBSD-SA-15:13.tcp 25 26 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 27 [SA-15:13] 28 2920150707: p19 FreeBSD-SA-15:11.bind 30 Fix BIND resolver remote denial of service when validating. 31 3220150630: p18 FreeBSD-EN-15:08.sendmail [revised] 33 FreeBSD-EN-15:09.xlocale 34 35 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 36 37 Fix inconsistency between locale and rune locale states. 38 [EN-15:09] 39 4020150618: p17 FreeBSD-EN-15:08.sendmail 41 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 42 4320150612: p16 FreeBSD-SA-15:10.openssl 44 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 45 4620150609: p15 FreeBSD-EN-15:06.file 47 48 Updated base system file(1) to 5.22 to address multiple denial 49 of service issues. 50 5120150513: p14 FreeBSD-EN-15:04.freebsd-update 52 53 Fix bug with freebsd-update(8) that does not ensure the previous 54 upgrade was completed. [EN-15:04] 55 5620150407: p13 FreeBSD-SA-15:04.igmp [revised] 57 FreeBSD-SA-15:07.ntp 58 FreeBSD-SA-15:09.ipv6 59 60 Improved patch for SA-15:04.igmp. 61 62 Fix multiple vulnerabilities of ntp. [SA-15:07] 63 64 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 65 6620150320: p12 67 Fix patch for SA-15:06.openssl. 68 6920150319: p11 FreeBSD-SA-15:06.openssl 70 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 71 7220150225: p10 FreeBSD-SA-15:04.igmp 73 FreeBSD-SA-15:05.bind 74 FreeBSD-EN-15:01.vt 75 FreeBSD-EN-15:02.openssl 76 FreeBSD-EN-15:03.freebsd-update 77 78 Fix integer overflow in IGMP protocol. [SA-15:04] 79 80 Fix BIND remote denial of service vulnerability. [SA-15:05] 81 82 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 83 84 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 85 86 Fix freebsd-update libraries update ordering issue. [EN-15:03] 87 8820150127: p9 FreeBSD-SA-15:02.kmem 89 FreeBSD-SA-15:03.sctp 90 91 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 92 vulnerability. [SA-15:02] 93 94 Fix SCTP stream reset vulnerability. [SA-15:03] 95 9620150114: p8 FreeBSD-SA-15:01.openssl 97 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 98 9920141223: p7 FreeBSD-SA-14:31.ntp 100 FreeBSD-EN-14:13.freebsd-update 101 102 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 103 Fix directory deletion issue in freebsd-update. [EN-14:13] 104 10520141210: p6 FreeBSD-SA-14:28.file 106 FreeBSD-SA-14:29.bind 107 108 Fix multiple vulnerabilities in file(1) and libmagic(3). 109 [SA-14:28] 110 111 Fix BIND remote denial of service vulnerability. [SA-14:29] 112 11320141104: p5 FreeBSD-SA-14:25.setlogin 114 FreeBSD-SA-14:26.ftp 115 FreeBSD-EN-14:12.zfs 116 117 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 118 [SA-14:25] 119 120 Fix remote command execution in ftp(1). [SA-14:26] 121 122 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 123 12420141022: p4 FreeBSD-EN-14:10.tzdata 125 FreeBSD-EN-14:11.crypt 126 127 Time zone data file update. [EN-14:10] 128 129 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 130 13120141021: p3 FreeBSD-SA-14:20.rtsold 132 FreeBSD-SA-14:21.routed 133 FreeBSD-SA-14:22.namei 134 FreeBSD-SA-14:23.openssl 135 136 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 137 138 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 139 140 Fix memory leak in sandboxed namei lookup. [SA-14:22] 141 142 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 143 14420140916: p2 FreeBSD-SA-14:19.tcp 145 Fix Denial of Service in TCP packet processing. [SA-14:19] 146 14720140909: p1 FreeBSD-SA-14:18.openssl 148 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 149 15020140716: 151 9.3-RELEASE. 152 15320140608: 154 On i386 and amd64 systems, the onifconsole flag is now set by default 155 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 156 as a login TTY if it is set in the bootloader as an active kernel 157 console. No changes in behavior should result otherwise. To revert to 158 the previous behavior, set ttyu0 to "off" in /etc/ttys. 159 16020140512: 161 Clang and llvm have been upgraded to 3.4.1 release. 162 16320140321: 164 Clang and llvm have been upgraded to 3.4 release. 165 16620140216: 167 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 168 been deprecated and will not be part of FreeBSD 11.0 and later 169 releases. If you use this driver, please consider switching to 170 the nfe(4) driver instead. 171 17220131216: 173 The behavior of gss_pseudo_random() for the krb5 mechanism 174 has changed, for applications requesting a longer random string 175 than produced by the underlying enctype's pseudo-random() function. 176 In particular, the random string produced from a session key of 177 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 178 be different at the 17th octet and later, after this change. 179 The counter used in the PRF+ construction is now encoded as a 180 big-endian integer in accordance with RFC 4402. 181 __FreeBSD_version is bumped to 902505. 182 18320130930: 184 9.2-RELEASE. 185 18620130823: 187 Behavior of devfs rules path matching has been changed. 188 Pattern is now always matched against fully qualified devfs 189 path and slash characters must be explicitly matched by 190 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 191 subdirectories must be reviewed. 192 19320130705: 194 hastctl(8)'s `status' command output changed to terse one-liner format. 195 Scripts using this should switch to `list' command or be rewritten. 196 19720130618: 198 Fix a bug that allowed a tracing process (e.g. gdb) to write 199 to a memory-mapped file in the traced process's address space 200 even if neither the traced process nor the tracing process had 201 write access to that file. 202 20320130605: 204 Added ZFS TRIM support which is enabled by default. To disable 205 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 206 207 Creating new ZFS pools and adding new devices to existing pools 208 first performs a full device level TRIM which can take a significant 209 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 210 to disable this behaviour. 211 212 ZFS TRIM requires the underlying device support BIO_DELETE which 213 is currently provided by methods such as ATA TRIM and SCSI UNMAP 214 via CAM, which are typically supported by SSD's. 215 216 Stats for ZFS TRIM can be monitored by looking at the sysctl's 217 under kstat.zfs.misc.zio_trim. 218 21920130524: 220 `list' command has been added to hastctl(8). For now, it is full 221 equivalent of `status' command. 222 WARNING: in the near future the output of hastctl's status command 223 will change to more terse format. If you use `hastctl status' 224 for parsing in your scripts, switch to `hastctl list'. 225 22620130430: 227 The mergemaster command now uses the default MAKEOBJDIRPREFIX 228 rather than creating it's own in the temporary directory in 229 order allow access to bootstrapped versions of tools such as 230 install and mtree. When upgrading from version of FreeBSD where 231 the install command does not support -l, you will need to 232 install a new mergemaster command if mergemaster -p is required. 233 This can be accomplished with the command (cd src/usr.sbin/mergemaster 234 && make install). 235 236 Due to the use of the new -l option to install(1) during build 237 and install, you must take care not to directly set the INSTALL 238 make variable in your /etc/make.conf, /etc/src.conf, or on the 239 command line. If you wish to use the -C flag for all installs 240 you may be able to add INSTALL+=-C to /etc/make.conf or 241 /etc/src.conf. 242 24320130429: 244 Fix a bug that allows NFS clients to issue READDIR on files. 245 24620130315: 247 The install(1) option -M has changed meaning and now takes an 248 argument that is a file or path to append logs to. In the 249 unlikely event that -M was the last option on the command line 250 and the command line contained at least two files and a target 251 directory the first file will have logs appended to it. The -M 252 option served little practical purpose in the last decade so it's 253 used expected to be extremely rare. 254 25520130225: 256 A new compression method (lz4) has been merged to. Please refer to 257 zpool-features(7) for more information. 258 259 Please refer to the "ZFS notes" section of this file for information 260 on upgrading boot ZFS pools. 261 26220121224: 263 The VFS KBI was changed with the merge of several nullfs 264 optimizations and fixes. All filesystem modules must be 265 recompiled. 266 26720121218: 268 With the addition of auditdistd(8), a new auditdistd user is now 269 depended on during installworld. "mergemaster -p" can be used to add 270 the user prior to installworld, as documented in the handbook. 271 27220121205: 273 9.1-RELEASE. 274 27520121129: 276 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 277 Starting with this version the old system of ZFS pool versioning 278 is superseded by "feature flags". This concept enables forward 279 compatibility against certain future changes in functionality of ZFS 280 pools. The first two read-only compatible "feature flags" for ZFS 281 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 282 For more information read the new zpool-features(7) manual page. 283 Please refer to the "ZFS notes" section of this file for information 284 on upgrading boot ZFS pools. 285 28620121114: 287 The commit introducing bsd.compiler.mk breaks the traditional 288 building of kernels before this point. Add -m ${SRC}/share/mk 289 (for the right value of SRC) to your command lines to work 290 around; update your useland to a point after this; or use the 291 buildkernel/installkernel top-level targets. See also 20120829. 292 29320121102: 294 The IPFIREWALL_FORWARD kernel option has been removed. Its 295 functionality now turned on by default. 296 29720120913: 298 The random(4) support for the VIA hardware random number 299 generator (`PADLOCK') is no longer enabled unconditionally. 300 Add the PADLOCK_RNG option in the custom kernel config if 301 needed. The GENERIC kernels on i386 and amd64 do include the 302 option, so the change only affects the custom kernel 303 configurations. 304 30520120829: 306 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 307 the traditional method, you must update your system with an installworld 308 before the kernel will build. The documented make buildkernel/installkernel 309 interfaces (coupled with fresh make kernel-toolchain) continue to work. 310 31120120727: 312 The sparc64 ZFS loader has been changed to no longer try to auto- 313 detect ZFS providers based on diskN aliases but now requires these 314 to be explicitly listed in the OFW boot-device environment variable. 315 31620120422: 317 Now unix domain sockets behave "as expected" on nullfs(5). Previously 318 nullfs(5) did not pass through all behaviours to the underlying layer, 319 as a result if we bound to a socket on the lower layer we could connect 320 only to the lower path; if we bound to the upper layer we could connect 321 only to the upper path. The new behavior is one can connect to both the 322 lower and the upper paths regardless what layer path one binds to. 323 32420120109: 325 The acpi_wmi(4) status device /dev/wmistat has been renamed to 326 /dev/wmistat0. 327 32820120106: 329 A new VOP_ADVISE() was added to support posix_fadvise(2). All 330 filesystem modules must be recompiled. 331 33220120106: 333 The interface of the VOP_VPTOCNP(9) changed, now the returned 334 vnode shall be referenced, previously it was required to be 335 only held. All in-tree filesystems are converted. 336 33720120106: 338 9.0-RELEASE. 339 34020111101: 341 The broken amd(4) driver has been replaced with esp(4) in the amd64, 342 i386 and pc98 GENERIC kernel configuration files. 343 34420110913: 345 This commit modifies vfs_register() so that it uses a hash 346 calculation to set vfc_typenum, which is enabled by default. 347 The first time a system is booted after this change, the 348 vfc_typenum values will change for all file systems. The 349 main effect of this is a change to the NFS server file handles 350 for file systems that use vfc_typenum in their fsid, such as ZFS. 351 It will, however, prevent vfc_typenum from changing when file 352 systems are loaded in a different order for subsequent reboots. 353 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 354 until you are ready to remount all NFS clients after a reboot. 355 35620110828: 357 Bump the shared library version numbers for libraries that 358 do not use symbol versioning, have changed the ABI compared 359 to stable/8 and which shared library version was not bumped. 360 Done as part of 9.0-RELEASE cycle. 361 36220110815: 363 During the merge of Capsicum features, the fget(9) KPI was modified. 364 This may require the rebuilding of out-of-tree device drivers -- 365 issues have been reported specifically with the nVidia device driver. 366 __FreeBSD_version is bumped to 900041. 367 368 Also, there is a period between 20110811 and 20110814 where the 369 special devices /dev/{stdin,stdout,stderr} did not work correctly. 370 Building world from a kernel during that window may not work. 371 37220110628: 373 The packet filter (pf) code has been updated to OpenBSD 4.5. 374 You need to update userland tools to be in sync with kernel. 375 This update breaks backward compatibility with earlier pfsync(4) 376 versions. Care must be taken when updating redundant firewall setups. 377 37820110608: 379 The following sysctls and tunables are retired on x86 platforms: 380 machdep.hlt_cpus 381 machdep.hlt_logical_cpus 382 The following sysctl is retired: 383 machdep.hyperthreading_allowed 384 The sysctls were supposed to provide a way to dynamically offline and 385 online selected CPUs on x86 platforms, but the implementation has not 386 been reliable especially with SCHED_ULE scheduler. 387 machdep.hyperthreading_allowed tunable is still available to ignore 388 hyperthreading CPUs at OS level. 389 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 390 where X is an APIC ID of a CPU. Be advised, though, that disabling 391 CPUs in non-uniform fashion will result in non-uniform topology and 392 may lead to sub-optimal system performance with SCHED_ULE, which is 393 a default scheduler. 394 39520110607: 396 cpumask_t type is retired and cpuset_t is used in order to describe 397 a mask of CPUs. 398 39920110531: 400 Changes to ifconfig(8) for dynamic address family detection mandate 401 that you are running a kernel of 20110525 or later. Make sure to 402 follow the update procedure to boot a new kernel before installing 403 world. 404 40520110513: 406 Support for sun4v architecture is officially dropped 407 40820110503: 409 Several KPI breaking changes have been committed to the mii(4) layer, 410 the PHY drivers and consequently some Ethernet drivers using mii(4). 411 This means that miibus.ko and the modules of the affected Ethernet 412 drivers need to be recompiled. 413 414 Note to kernel developers: Given that the OUI bit reversion problem 415 was fixed as part of these changes all mii(4) commits related to OUIs, 416 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 417 handling, no longer can be merged verbatim to stable/8 and previous 418 branches. 419 42020110430: 421 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 422 into their kernel configurations along with 'device pci'. 423 42420110427: 425 The default NFS client is now the new NFS client, so fstype "newnfs" 426 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 427 Although mounts via fstype "nfs" will usually work without userland 428 changes, it is recommended that the mount(8) and mount_nfs(8) 429 commands be rebuilt from sources and that a link to mount_nfs called 430 mount_oldnfs be created. The new client is compiled into the 431 kernel with "options NFSCL" and this is needed for diskless root 432 file systems. The GENERIC kernel configs have been changed to use 433 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 434 To use the regular/old client, you can "mount -t oldnfs ...". For 435 a diskless root file system, you must also include a line like: 436 437 vfs.root.mountfrom="oldnfs:" 438 439 in the boot/loader.conf on the root fs on the NFS server to make 440 a diskless root fs use the old client. 441 44220110424: 443 The GENERIC kernels for all architectures now default to the new 444 CAM-based ATA stack. It means that all legacy ATA drivers were 445 removed and replaced by respective CAM drivers. If you are using 446 ATA device names in /etc/fstab or other places, make sure to update 447 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 448 where 'Y's are the sequential numbers starting from zero for each type 449 in order of detection, unless configured otherwise with tunables, 450 see cam(4)). There will be symbolic links created in /dev/ to map 451 old adX devices to the respective adaY. They should provide basic 452 compatibility for file systems mounting in most cases, but they do 453 not support old user-level APIs and do not have respective providers 454 in GEOM. Consider using updated management tools with new device names. 455 456 It is possible to load devices ahci, ata, siis and mvs as modules, 457 but option ATA_CAM should remain in kernel configuration to make ata 458 module work as CAM driver supporting legacy ATA controllers. Device ata 459 still can be used in modular fashion (atacore + ...). Modules atadisk 460 and atapi* are not used and won't affect operation in ATA_CAM mode. 461 Note that to use CAM-based ATA kernel should include CAM devices 462 scbus, pass, da (or explicitly ada), cd and optionally others. All of 463 them are parts of the cam module. 464 465 ataraid(4) functionality is now supported by the RAID GEOM class. 466 To use it you can load geom_raid kernel module and use graid(8) tool 467 for management. Instead of /dev/arX device names, use /dev/raid/rX. 468 469 No kernel config options or code have been removed, so if a problem 470 arises, please report it and optionally revert to the old ATA stack. 471 In order to do it you can remove from the kernel config: 472 options ATA_CAM 473 device ahci 474 device mvs 475 device siis 476 , and instead add back: 477 device atadisk # ATA disk drives 478 device ataraid # ATA RAID drives 479 device atapicd # ATAPI CDROM drives 480 device atapifd # ATAPI floppy drives 481 device atapist # ATAPI tape drives 482 48320110423: 484 The default NFS server has been changed to the new server, which 485 was referred to as the experimental server. If you need to switch 486 back to the old NFS server, you must now put the "-o" option on 487 both the mountd and nfsd commands. This can be done using the 488 mountd_flags and nfs_server_flags rc.conf variables until an 489 update to the rc scripts is committed, which is coming soon. 490 49120110418: 492 The GNU Objective-C runtime library (libobjc), and other Objective-C 493 related components have been removed from the base system. If you 494 require an Objective-C library, please use one of the available ports. 495 49620110331: 497 ath(4) has been split into bus- and device- modules. if_ath contains 498 the HAL, the TX rate control and the network device code. if_ath_pci 499 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 500 contains the AHB glue. Users need to load both if_ath_pci and if_ath 501 in order to use ath on everything else. 502 503 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 504 need to load if_ath and if_ath_pci for ath(4) operation. 505 50620110314: 507 As part of the replacement of sysinstall, the process of building 508 release media has changed significantly. For details, please re-read 509 release(7), which has been updated to reflect the new build process. 510 51120110218: 512 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 513 is the last available version under GPLv2. It brings a number of new 514 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 515 4.1 and SSE 4.2), better support for powerpc64, a number of new 516 directives, and lots of other small improvements. See the ChangeLog 517 file in contrib/binutils for the full details. 518 51920110218: 520 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 521 compliant, and will now use half of hash for authentication. 522 This will break interoperability with all stacks (including all 523 actual FreeBSD versions) who implement 524 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 525 authentication). 526 The only workaround with such peers is to use another HMAC 527 algorithm for IPsec ("phase 2") authentication. 528 52920110207: 530 Remove the uio_yield prototype and symbol. This function has 531 been misnamed since it was introduced and should not be 532 globally exposed with this name. The equivalent functionality 533 is now available using kern_yield(curthread->td_user_pri). 534 The function remains undocumented. 535 53620110112: 537 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 538 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 539 for scalar sysctls is defined but disabled. Code that needs 540 UQUAD to pass the type checking that must compile on older 541 systems where the define is not present can check against 542 __FreeBSD_version >= 900030. 543 544 The system dialog(1) has been replaced with a new version previously 545 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 546 with the previous version, but the libdialog associated with it has 547 a largely incompatible API. As such, the original version of libdialog 548 will be kept temporarily as libodialog, until its base system consumers 549 are replaced or updated. Bump __FreeBSD_version to 900030. 550 55120110103: 552 If you are trying to run make universe on a -stable system, and you get 553 the following warning: 554 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 555 unknown. config(8) likely too old." 556 or something similar to it, then you must upgrade your -stable system 557 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 558 stable/8) or build the config from the latest stable/8 branch and 559 install it on your system. 560 561 Prior to this date, building a current universe on 8-stable system from 562 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 563 error in the first kernel build phase. A new config on those old 564 systems will fix that problem for older versions of -current. 565 56620101228: 567 The TCP stack has been modified to allow Khelp modules to interact with 568 it via helper hook points and store per-connection data in the TCP 569 control block. Bump __FreeBSD_version to 900029. User space tools that 570 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 571 be recompiled. 572 57320101114: 574 Generic IEEE 802.3 annex 31B full duplex flow control support has been 575 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 576 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 577 to take advantage of it instead of using custom implementations. This 578 means that these drivers now no longer unconditionally advertise 579 support for flow control but only do so if flow control is a selected 580 media option. This was implemented in the generic support that way in 581 order to allow flow control to be switched on and off via ifconfig(8) 582 with the PHY specific default to typically off in order to protect 583 from unwanted effects. Consequently, if you used flow control with 584 one of the above mentioned drivers you now need to explicitly enable 585 it, for example via: 586 ifconfig bge0 media auto mediaopt flowcontrol 587 588 Along with the above mentioned changes generic support for setting 589 1000baseT master mode also has been added and brgphy(4), ciphy(4), 590 e1000phy(4) as well as ip1000phy(4) have been converted to take 591 advantage of it. This means that these drivers now no longer take the 592 link0 parameter for selecting master mode but the master media option 593 has to be used instead, for example like in the following: 594 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 595 596 Selection of master mode now is also available with all other PHY 597 drivers supporting 1000baseT. 598 59920101111: 600 The TCP stack has received a significant update to add support for 601 modularised congestion control and generally improve the clarity of 602 congestion control decisions. Bump __FreeBSD_version to 900025. User 603 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 604 sockstat) need to be recompiled. 605 60620101002: 607 The man(1) utility has been replaced by a new version that no longer 608 uses /etc/manpath.config. Please consult man.conf(5) for how to 609 migrate local entries to the new format. 610 61120100928: 612 The copyright strings printed by login(1) and sshd(8) at the time of a 613 new connection have been removed to follow other operating systems and 614 upstream sshd. 615 61620100915: 617 A workaround for a fixed ld bug has been removed in kernel code, 618 so make sure that your system ld is built from sources after 619 revision 210245 from 2010-07-19 (r211583 if building head kernel 620 on stable/8, r211584 for stable/7; both from 2010-08-21). 621 A symptom of incorrect ld version is different addresses for 622 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 623 62420100913: 625 The $ipv6_prefer variable in rc.conf(5) has been split into 626 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 627 628 The $ip6addrctl_policy is a variable to choose a pre-defined 629 address selection policy set by ip6addrctl(8). A value 630 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 631 default is "AUTO". 632 633 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 634 flag (see an entry of 20090926) is set on an interface with no 635 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 636 security reason. If you want IPv6 link-local address on all 637 interfaces by default, set this to "YES". 638 639 The old ipv6_prefer="YES" is equivalent to 640 ipv6_activate_all_interfaces="YES" and 641 ip6addrctl_policy="ipv6_prefer". 642 64320100913: 644 DTrace has grown support for userland tracing. Due to this, DTrace is 645 now i386 and amd64 only. 646 dtruss(1) is now installed by default on those systems and a new 647 kernel module is needed for userland tracing: fasttrap. 648 No changes to your kernel config file are necessary to enable 649 userland tracing, but you might consider adding 'STRIP=' and 650 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 651 to have informative userland stack traces in DTrace (ustack). 652 65320100725: 654 The acpi_aiboost(4) driver has been removed in favor of the new 655 aibs(4) driver. You should update your kernel configuration file. 656 65720100722: 658 BSD grep has been imported to the base system and it is built by 659 default. It is completely BSD licensed, highly GNU-compatible, uses 660 less memory than its GNU counterpart and has a small codebase. 661 However, it is slower than its GNU counterpart, which is mostly 662 noticeable for larger searches, for smaller ones it is measurable 663 but not significant. The reason is complex, the most important factor 664 is that we lack a modern and efficient regex library and GNU 665 overcomes this by optimizing the searches internally. Future work 666 on improving the regex performance is planned, for the meantime, 667 users that need better performance, can build GNU grep instead by 668 setting the WITH_GNU_GREP knob. 669 67020100713: 671 Due to the import of powerpc64 support, all existing powerpc kernel 672 configuration files must be updated with a machine directive like this: 673 machine powerpc powerpc 674 675 In addition, an updated config(8) is required to build powerpc kernels 676 after this change. 677 67820100713: 679 A new version of ZFS (version 15) has been merged to -HEAD. 680 This version uses a python library for the following subcommands: 681 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 682 For full functionality of these commands the following port must 683 be installed: sysutils/py-zfs 684 68520100429: 686 'vm_page's are now hashed by physical address to an array of mutexes. 687 Currently this is only used to serialize access to hold_count. Over 688 time the page queue mutex will be peeled away. This changes the size 689 of pmap on every architecture. And requires all callers of vm_page_hold 690 and vm_page_unhold to be updated. 691 69220100402: 693 WITH_CTF can now be specified in src.conf (not recommended, there 694 are some problems with static executables), make.conf (would also 695 affect ports which do not use GNU make and do not override the 696 compile targets) or in the kernel config (via "makeoptions 697 WITH_CTF=yes"). 698 When WITH_CTF was specified there before this was silently ignored, 699 so make sure that WITH_CTF is not used in places which could lead 700 to unwanted behavior. 701 70220100311: 703 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 704 to allow 32-bit compatibility on non-x86 platforms. All kernel 705 configurations on amd64 and ia64 platforms using these options must 706 be modified accordingly. 707 70820100113: 709 The utmp user accounting database has been replaced with utmpx, 710 the user accounting interface standardized by POSIX. 711 Unfortunately the semantics of utmp and utmpx don't match, 712 making it practically impossible to support both interfaces. 713 The user accounting database is used by tools like finger(1), 714 last(1), talk(1), w(1) and ac(8). 715 716 All applications in the base system use utmpx. This means only 717 local binaries (e.g. from the ports tree) may still use these 718 utmp database files. These applications must be rebuilt to make 719 use of utmpx. 720 721 After the system has been upgraded, it is safe to remove the old 722 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 723 assuming their contents is of no importance anymore. Old wtmp 724 databases can only be used by last(1) and ac(8) after they have 725 been converted to the new format using wtmpcvt(1). 726 72720100108: 728 Introduce the kernel thread "deadlock resolver" (which can be enabled 729 via the DEADLKRES option, see NOTES for more details) and the 730 sleepq_type() function for sleepqueues. 731 73220091202: 733 The rc.firewall and rc.firewall6 were unified, and 734 rc.firewall6 and rc.d/ip6fw were removed. 735 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 736 variables are obsoleted. Instead, the following new rc 737 variables are added to rc.d/ipfw: 738 739 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 740 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 741 firewall_simple_onet_ipv6, firewall_trusted_ipv6 742 743 The meanings correspond to the relevant IPv4 variables. 744 74520091125: 746 8.0-RELEASE. 747 74820091113: 749 The default terminal emulation for syscons(4) has been changed 750 from cons25 to xterm on all platforms except pc98. This means 751 that the /etc/ttys file needs to be updated to ensure correct 752 operation of applications on the console. 753 754 The terminal emulation style can be toggled per window by using 755 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 756 options can be used to change the compile-time default back to 757 cons25. 758 759 To prevent graphical artifacts, make sure the TERM environment 760 variable is set to match the terminal emulation that is being 761 performed by syscons(4). 762 76320091109: 764 The layout of the structure ieee80211req_scan_result has changed. 765 Applications that require wireless scan results (e.g. ifconfig(8)) 766 from net80211 need to be recompiled. 767 768 Applications such as wpa_supplicant(8) may require a full world 769 build without using NO_CLEAN in order to get synchronized with the 770 new structure. 771 77220091025: 773 The iwn(4) driver has been updated to support the 5000 and 5150 series. 774 There's one kernel module for each firmware. Adding "device iwnfw" 775 to the kernel configuration file means including all three firmware 776 images inside the kernel. If you want to include just the one for 777 your wireless card, use the devices iwn4965fw, iwn5000fw or 778 iwn5150fw. 779 78020090926: 781 The rc.d/network_ipv6, IPv6 configuration script has been integrated 782 into rc.d/netif. The changes are the following: 783 784 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 785 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 786 Note that both variables need the "inet6" keyword at the head. 787 788 Do not set $ipv6_network_interfaces manually if you do not 789 understand what you are doing. It is not needed in most cases. 790 791 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 792 they are obsolete. 793 794 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 795 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 796 797 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 798 all configured interfaces have "inet6 accept_rtadv" in the 799 $ifconfig_IF_ipv6. These are for backward compatibility. 800 801 3. A new variable $ipv6_prefer has been added. If NO, IPv6 802 functionality of interfaces with no corresponding 803 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 804 and the default address selection policy of ip6addrctl(8) 805 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 806 Note that if you want to configure IPv6 functionality on the 807 disabled interfaces after boot, first you need to clear the flag by 808 using ifconfig(8) like: 809 810 ifconfig em0 inet6 -ifdisabled 811 812 If YES, the default address selection policy is set as 813 IPv6-preferred. 814 815 The default value of $ipv6_prefer is NO. 816 817 4. If your system need to receive Router Advertisement messages, 818 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 819 scripts automatically invoke rtsol(8) when the interface becomes 820 UP. The Router Advertisement messages are used for SLAAC 821 (State-Less Address AutoConfiguration). 822 82320090922: 824 802.11s D3.03 support was committed. This is incompatible with the 825 previous code, which was based on D3.0. 826 82720090912: 828 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 829 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 830 control whether accepting Router Advertisement messages or not. 831 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 832 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 833 The ifconfig(8) utility now supports these flags. 834 83520090910: 836 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 837 mount(8) and -a option for df(1) to see them. 838 83920090825: 840 The old tunable hw.bus.devctl_disable has been superseded by 841 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 842 replaced by hw.bus.devctl_queue=0. The default for this new tunable 843 is 1000. 844 84520090813: 846 Remove the option STOP_NMI. The default action is now to use NMI only 847 for KDB via the newly introduced function stop_cpus_hard() and 848 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 849 85020090803: 851 The stable/8 branch created in subversion. This corresponds to the 852 RELENG_8 branch in CVS. 853 85420090719: 855 Bump the shared library version numbers for all libraries that do not 856 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 857 __FreeBSD_version to 800105. 858 85920090714: 860 Due to changes in the implementation of virtual network stack support, 861 all network-related kernel modules must be recompiled. As this change 862 breaks the ABI, bump __FreeBSD_version to 800104. 863 86420090713: 865 The TOE interface to the TCP syncache has been modified to remove 866 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 867 The cxgb driver is the only TOE consumer affected by this change, and 868 needs to be recompiled along with the kernel. As this change breaks 869 the ABI, bump __FreeBSD_version to 800103. 870 87120090712: 872 Padding has been added to struct tcpcb, sackhint and tcpstat in 873 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 874 maintaining the ABI. However, this change breaks the ABI, so bump 875 __FreeBSD_version to 800102. User space tools that rely on the size of 876 any of these structs (e.g. sockstat) need to be recompiled. 877 87820090630: 879 The NFS_LEGACYRPC option has been removed along with the old kernel 880 RPC implementation that this option selected. Kernel configurations 881 may need to be adjusted. 882 88320090629: 884 The network interface device nodes at /dev/net/<interface> have been 885 removed. All ioctl operations can be performed the normal way using 886 routing sockets. The kqueue functionality can generally be replaced 887 with routing sockets. 888 88920090628: 890 The documentation from the FreeBSD Documentation Project (Handbook, 891 FAQ, etc.) is now installed via packages by sysinstall(8) and under 892 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 893 89420090624: 895 The ABI of various structures related to the SYSV IPC API have been 896 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 897 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 898 800100. 899 90020090622: 901 Layout of struct vnet has changed as routing related variables were 902 moved to their own Vimage module. Modules need to be recompiled. Bump 903 __FreeBSD_version to 800099. 904 90520090619: 906 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 907 respectively. As long as no more than 16 groups per process are used, 908 no changes should be visible. When more than 16 groups are used, old 909 binaries may fail if they call getgroups() or getgrouplist() with 910 statically sized storage. Recompiling will work around this, but 911 applications should be modified to use dynamically allocated storage 912 for group arrays as POSIX.1-2008 does not cap an implementation's 913 number of supported groups at NGROUPS_MAX+1 as previous versions did. 914 915 NFS and portalfs mounts may also be affected as the list of groups is 916 truncated to 16. Users of NFS who use more than 16 groups, should 917 take care that negative group permissions are not used on the exported 918 file systems as they will not be reliable unless a GSSAPI based 919 authentication method is used. 920 92120090616: 922 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 923 option compiles in the support for adaptive spinning for lockmgrs 924 which want to enable it. The lockinit() function now accepts the flag 925 LK_ADAPTIVE in order to make the lock object subject to adaptive 926 spinning when both held in write and read mode. 927 92820090613: 929 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 930 changed. User applications that use this ioctl need to be rebuilt. 931 93220090611: 933 The layout of struct thread has changed. Kernel and modules need to 934 be rebuilt. 935 93620090608: 937 The layout of structs ifnet, domain, protosw and vnet_net has changed. 938 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 939 94020090602: 941 window(1) has been removed from the base system. It can now be 942 installed from ports. The port is called misc/window. 943 94420090601: 945 The way we are storing and accessing `routing table' entries has 946 changed. Programs reading the FIB, like netstat, need to be 947 re-compiled. 948 94920090601: 950 A new netisr implementation has been added for FreeBSD 8. Network 951 file system modules, such as igmp, ipdivert, and others, should be 952 rebuilt. 953 Bump __FreeBSD_version to 800096. 954 95520090530: 956 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 957 more valid. 958 95920090530: 960 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 961 Bump __FreeBSD_version to 800094. 962 96320090529: 964 Add mnt_xflag field to 'struct mount'. File system modules need to be 965 rebuilt. 966 Bump __FreeBSD_version to 800093. 967 96820090528: 969 The compiling option ADAPTIVE_SX has been retired while it has been 970 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 971 The KPI for sx_init_flags() changes as accepting flags: 972 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 973 been introduced in order to handle the reversed logic. 974 Bump __FreeBSD_version to 800092. 975 97620090527: 977 Add support for hierarchical jails. Remove global securelevel. 978 Bump __FreeBSD_version to 800091. 979 98020090523: 981 The layout of struct vnet_net has changed, therefore modules 982 need to be rebuilt. 983 Bump __FreeBSD_version to 800090. 984 98520090523: 986 The newly imported zic(8) produces a new format in the output. Please 987 run tzsetup(8) to install the newly created data to /etc/localtime. 988 98920090520: 990 The sysctl tree for the usb stack has renamed from hw.usb2.* to 991 hw.usb.* and is now consistent again with previous releases. 992 99320090520: 994 802.11 monitor mode support was revised and driver api's were changed. 995 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 996 of DLT_IEEE802_11. No user-visible data structures were changed but 997 applications that use DLT_IEEE802_11 may require changes. 998 Bump __FreeBSD_version to 800088. 999 100020090430: 1001 The layout of the following structs has changed: sysctl_oid, 1002 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1003 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1004 panics may be experienced. World rebuild is required for 1005 correctly checking networking state from userland. 1006 Bump __FreeBSD_version to 800085. 1007 100820090429: 1009 MLDv2 and Source-Specific Multicast (SSM) have been merged 1010 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1011 The implementation of SSM within FreeBSD's IPv6 stack closely 1012 follows the IPv4 implementation. 1013 1014 For kernel developers: 1015 1016 * The most important changes are that the ip6_output() and 1017 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1018 and this lock has been downgraded to a non-recursive mutex. 1019 1020 * As with the changes to the IPv4 stack to support SSM, filtering 1021 of inbound multicast traffic must now be performed by transport 1022 protocols within the IPv6 stack. This does not apply to TCP and 1023 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1024 1025 * The KPIs used by IPv6 multicast are similar to those used by 1026 the IPv4 stack, with the following differences: 1027 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1028 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1029 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1030 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1031 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1032 for MLDv1 have an additional 'timer' argument which is used to 1033 jitter the initial membership report for the solicited-node 1034 multicast membership on-link. 1035 * This is not strictly needed for MLDv2, which already jitters 1036 its report transmissions. However, the 'timer' argument is 1037 preserved in case MLDv1 is active on the interface. 1038 1039 * The KAME linked-list based IPv6 membership implementation has 1040 been refactored to use a vector similar to that used by the IPv4 1041 stack. 1042 Code which maintains a list of its own multicast memberships 1043 internally, e.g. carp, has been updated to reflect the new 1044 semantics. 1045 1046 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1047 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1048 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1049 implementation constraint which needs to be addressed in HEAD. 1050 1051 For application developers: 1052 1053 * The changes are broadly similar to those made for the IPv4 1054 stack. 1055 1056 * The use of IPv4 and IPv6 multicast socket options on the same 1057 socket, using mapped addresses, HAS NOT been tested or supported. 1058 1059 * There are a number of issues with the implementation of various 1060 IPv6 multicast APIs which need to be resolved in the API surface 1061 before the implementation is fully compatible with KAME userland 1062 use, and these are mostly to do with interface index treatment. 1063 1064 * The literature available discusses the use of either the delta / ASM 1065 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1066 using setsourcefilter(3)/getsourcefilter(3). For more information 1067 please refer to RFC 3768, 'Socket Interface Extensions for 1068 Multicast Source Filters'. 1069 1070 * Applications which use the published RFC 3678 APIs should be fine. 1071 1072 For systems administrators: 1073 1074 * The mtest(8) utility has been refactored to support IPv6, in 1075 addition to IPv4. Interface addresses are no longer accepted 1076 as arguments, their names must be used instead. The utility 1077 will map the interface name to its first IPv4 address as 1078 returned by getifaddrs(3). 1079 1080 * The ifmcstat(8) utility has also been updated to print the MLDv2 1081 endpoint state and source filter lists via sysctl(3). 1082 1083 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1084 loopback of IPv6 multicast datagrams by default; it defaults to 1 1085 to preserve the existing behaviour. Disabling multicast loopback is 1086 recommended for optimal system performance. 1087 1088 * The IPv6 MROUTING code has been changed to examine this sysctl 1089 instead of attempting to perform a group lookup before looping 1090 back forwarded datagrams. 1091 1092 Bump __FreeBSD_version to 800084. 1093 109420090422: 1095 Implement low-level Bluetooth HCI API. 1096 Bump __FreeBSD_version to 800083. 1097 109820090419: 1099 The layout of struct malloc_type, used by modules to register new 1100 memory allocation types, has changed. Most modules will need to 1101 be rebuilt or panics may be experienced. 1102 Bump __FreeBSD_version to 800081. 1103 110420090415: 1105 Anticipate overflowing inp_flags - add inp_flags2. 1106 This changes most offsets in inpcb, so checking v4 connection 1107 state will require a world rebuild. 1108 Bump __FreeBSD_version to 800080. 1109 111020090415: 1111 Add an llentry to struct route and struct route_in6. Modules 1112 embedding a struct route will need to be recompiled. 1113 Bump __FreeBSD_version to 800079. 1114 111520090414: 1116 The size of rt_metrics_lite and by extension rtentry has changed. 1117 Networking administration apps will need to be recompiled. 1118 The route command now supports show as an alias for get, weighting 1119 of routes, sticky and nostick flags to alter the behavior of stateful 1120 load balancing. 1121 Bump __FreeBSD_version to 800078. 1122 112320090408: 1124 Do not use Giant for kbdmux(4) locking. This is wrong and 1125 apparently causing more problems than it solves. This will 1126 re-open the issue where interrupt handlers may race with 1127 kbdmux(4) in polling mode. Typical symptoms include (but 1128 not limited to) duplicated and/or missing characters when 1129 low level console functions (such as gets) are used while 1130 interrupts are enabled (for example geli password prompt, 1131 mountroot prompt etc.). Disabling kbdmux(4) may help. 1132 113320090407: 1134 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1135 kernel modules referencing any of the above need to be recompiled. 1136 Bump __FreeBSD_version to 800075. 1137 113820090320: 1139 GEOM_PART has become the default partition slicer for storage devices, 1140 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1141 introduces some changes: 1142 1143 MSDOS/EBR: the devices created from MSDOS extended partition entries 1144 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1145 to devices with offset-based names. fstabs may need to be modified. 1146 1147 BSD: the "geometry does not match label" warning is harmless in most 1148 cases but it points to problems in file system misalignment with 1149 disk geometry. The "c" partition is now implicit, covers the whole 1150 top-level drive and cannot be (mis)used by users. 1151 1152 General: Kernel dumps are now not allowed to be written to devices 1153 whose partition types indicate they are meant to be used for file 1154 systems (or, in case of MSDOS partitions, as something else than 1155 the "386BSD" type). 1156 1157 Most of these changes date approximately from 200812. 1158 115920090319: 1160 The uscanner(4) driver has been removed from the kernel. This follows 1161 Linux removing theirs in 2.6 and making libusb the default interface 1162 (supported by sane). 1163 116420090319: 1165 The multicast forwarding code has been cleaned up. netstat(1) 1166 only relies on KVM now for printing bandwidth upcall meters. 1167 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1168 ip6_mroute_mod respectively. The config(5) options for statically 1169 compiling this code remain the same, i.e. 'options MROUTING'. 1170 117120090315: 1172 Support for the IFF_NEEDSGIANT network interface flag has been 1173 removed, which means that non-MPSAFE network device drivers are no 1174 longer supported. In particular, if_ar, if_sr, and network device 1175 drivers from the old (legacy) USB stack can no longer be built or 1176 used. 1177 117820090313: 1179 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1180 a bunch of new language catalog files have also been added. 1181 This means that some common libc messages are now localized and 1182 they depend on the LC_MESSAGES environmental variable. 1183 118420090313: 1185 The k8temp(4) driver has been renamed to amdtemp(4) since 1186 support for Family 10 and Family 11 CPU families was added. 1187 118820090309: 1189 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1190 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1191 1192 For kernel developers, the most important changes are that the 1193 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1194 and this lock has been downgraded to a non-recursive mutex. 1195 1196 Transport protocols (UDP, Raw IP) are now responsible for filtering 1197 inbound multicast traffic according to group membership and source 1198 filters. The imo_multicast_filter() KPI exists for this purpose. 1199 Transports which do not use multicast (SCTP, TCP) already reject 1200 multicast by default. Forwarding and receive performance may improve 1201 as a mutex acquisition is no longer needed in the ip_input() 1202 low-level input path. in_addmulti() and in_delmulti() are shimmed 1203 to new KPIs which exist to support SSM in-kernel. 1204 1205 For application developers, it is recommended that loopback of 1206 multicast datagrams be disabled for best performance, as this 1207 will still cause the lock to be taken for each looped-back 1208 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1209 be tuned to 0 to disable loopback by default; it defaults to 1 1210 to preserve the existing behaviour. 1211 1212 For systems administrators, to obtain best performance with 1213 multicast reception and multiple groups, it is always recommended 1214 that a card with a suitably precise hash filter is used. Hash 1215 collisions will still result in the lock being taken within the 1216 transport protocol input path to check group membership. 1217 1218 If deploying FreeBSD in an environment with IGMP snooping switches, 1219 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1220 enabled; this forces 224.0.0.0/24 group membership to be announced 1221 via IGMP. 1222 1223 The size of 'struct igmpstat' has changed; netstat needs to be 1224 recompiled to reflect this. 1225 Bump __FreeBSD_version to 800070. 1226 122720090309: 1228 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1229 updated to use it. This requires a buildworld/installworld in order to 1230 update the library and dependencies (usbconfig, etc). Its advisable to 1231 rebuild all ports which uses libusb. More specific directions are given 1232 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1233 libusb are no longer required and can be removed. 1234 123520090302: 1236 A workaround is committed to allow the creation of System V shared 1237 memory segment of size > 2 GB on the 64-bit architectures. 1238 Due to a limitation of the existing ABI, the shm_segsz member 1239 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1240 wrong for large segments. Note that limits must be explicitly 1241 raised to allow such segments to be created. 1242 124320090301: 1244 The layout of struct ifnet has changed, requiring a rebuild of all 1245 network device driver modules. 1246 124720090227: 1248 The /dev handling for the new USB stack has changed, a 1249 buildworld/installworld is required for libusb20. 1250 125120090223: 1252 The new USB2 stack has now been permanently moved in and all kernel and 1253 module names reverted to their previous values (eg, usb, ehci, ohci, 1254 ums, ...). The old usb stack can be compiled in by prefixing the name 1255 with the letter 'o', the old usb modules have been removed. 1256 Updating entry 20090216 for xorg and 20090215 for libmap may still 1257 apply. 1258 125920090217: 1260 The rc.conf(5) option if_up_delay has been renamed to 1261 defaultroute_delay to better reflect its purpose. If you have 1262 customized this setting in /etc/rc.conf you need to update it to 1263 use the new name. 1264 126520090216: 1266 xorg 7.4 wants to configure its input devices via hald which does not 1267 yet work with USB2. If the keyboard/mouse does not work in xorg then 1268 add 1269 Option "AllowEmptyInput" "off" 1270 to your ServerLayout section. This will cause X to use the configured 1271 kbd and mouse sections from your xorg.conf. 1272 127320090215: 1274 The GENERIC kernels for all architectures now default to the new USB2 1275 stack. No kernel config options or code have been removed so if a 1276 problem arises please report it and optionally revert to the old USB 1277 stack. If you are loading USB kernel modules or have a custom kernel 1278 that includes GENERIC then ensure that usb names are also changed over, 1279 eg uftdi -> usb2_serial_ftdi. 1280 1281 Older programs linked against the ports libusb 0.1 need to be 1282 redirected to the new stack's libusb20. /etc/libmap.conf can 1283 be used for this: 1284 # Map old usb library to new one for usb2 stack 1285 libusb-0.1.so.8 libusb20.so.1 1286 128720090209: 1288 All USB ethernet devices now attach as interfaces under the name ueN 1289 (eg. ue0). This is to provide a predictable name as vendors often 1290 change usb chipsets in a product without notice. 1291 129220090203: 1293 The ichsmb(4) driver has been changed to require SMBus slave 1294 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1295 All of the other SMBus controller drivers require left-justified 1296 slave addresses, so this change makes all the drivers provide the 1297 same interface. 1298 129920090201: 1300 INET6 statistics (struct ip6stat) was updated. 1301 netstat(1) needs to be recompiled. 1302 130320090119: 1304 NTFS has been removed from GENERIC kernel on amd64 to match 1305 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1306 will load ntfs.ko module automatically when NTFS support is 1307 actually needed, unless ntfs.ko is not installed or security 1308 level prohibits loading kernel modules. If either is the case, 1309 "options NTFS" has to be added into kernel config. 1310 131120090115: 1312 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1313 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1314 800061. User space tools that rely on the size of struct tcpcb in 1315 tcp_var.h (e.g. sockstat) need to be recompiled. 1316 131720081225: 1318 ng_tty(4) module updated to match the new TTY subsystem. 1319 Due to API change, user-level applications must be updated. 1320 New API support added to mpd5 CVS and expected to be present 1321 in next mpd5.3 release. 1322 132320081219: 1324 With __FreeBSD_version 800060 the makefs tool is part of 1325 the base system (it was a port). 1326 132720081216: 1328 The afdata and ifnet locks have been changed from mutexes to 1329 rwlocks, network modules will need to be re-compiled. 1330 133120081214: 1332 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1333 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1334 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1335 architecture and 40 bytes on 64-bit architecture. The userland 1336 applications "arp" and "ndp" have been updated accordingly. 1337 The output from "netstat -r" shows only routing entries and 1338 none of the L2 information. 1339 134020081130: 1341 __FreeBSD_version 800057 marks the switchover from the 1342 binary ath hal to source code. Users must add the line: 1343 1344 options AH_SUPPORT_AR5416 1345 1346 to their kernel config files when specifying: 1347 1348 device ath_hal 1349 1350 The ath_hal module no longer exists; the code is now compiled 1351 together with the driver in the ath module. It is now 1352 possible to tailor chip support (i.e. reduce the set of chips 1353 and thereby the code size); consult ath_hal(4) for details. 1354 135520081121: 1356 __FreeBSD_version 800054 adds memory barriers to 1357 <machine/atomic.h>, new interfaces to ifnet to facilitate 1358 multiple hardware transmit queues for cards that support 1359 them, and a lock-less ring-buffer implementation to 1360 enable drivers to more efficiently manage queueing of 1361 packets. 1362 136320081117: 1364 A new version of ZFS (version 13) has been merged to -HEAD. 1365 This version has zpool attribute "listsnapshots" off by 1366 default, which means "zfs list" does not show snapshots, 1367 and is the same as Solaris behavior. 1368 136920081028: 1370 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1371 137220081009: 1373 The uhci, ohci, ehci and slhci USB Host controller drivers have 1374 been put into separate modules. If you load the usb module 1375 separately through loader.conf you will need to load the 1376 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1377 controller add the following to loader.conf: 1378 1379 uhci_load="YES" 1380 ehci_load="YES" 1381 138220081009: 1383 The ABI used by the PMC toolset has changed. Please keep 1384 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1385 sync. 1386 138720081009: 1388 atapci kernel module now includes only generic PCI ATA 1389 driver. AHCI driver moved to ataahci kernel module. 1390 All vendor-specific code moved into separate kernel modules: 1391 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1392 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1393 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1394 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1395 139620080820: 1397 The TTY subsystem of the kernel has been replaced by a new 1398 implementation, which provides better scalability and an 1399 improved driver model. Most common drivers have been migrated to 1400 the new TTY subsystem, while others have not. The following 1401 drivers have not yet been ported to the new TTY layer: 1402 1403 PCI/ISA: 1404 cy, digi, rc, rp, sio 1405 1406 USB: 1407 ubser, ucycom 1408 1409 Line disciplines: 1410 ng_h4, ng_tty, ppp, sl, snp 1411 1412 Adding these drivers to your kernel configuration file shall 1413 cause compilation to fail. 1414 141520080818: 1416 ntpd has been upgraded to 4.2.4p5. 1417 141820080801: 1419 OpenSSH has been upgraded to 5.1p1. 1420 1421 For many years, FreeBSD's version of OpenSSH preferred DSA 1422 over RSA for host and user authentication keys. With this 1423 upgrade, we've switched to the vendor's default of RSA over 1424 DSA. This may cause upgraded clients to warn about unknown 1425 host keys even for previously known hosts. Users should 1426 follow the usual procedure for verifying host keys before 1427 accepting the RSA key. 1428 1429 This can be circumvented by setting the "HostKeyAlgorithms" 1430 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1431 command line. 1432 1433 Please note that the sequence of keys offered for 1434 authentication has been changed as well. You may want to 1435 specify IdentityFile in a different order to revert this 1436 behavior. 1437 143820080713: 1439 The sio(4) driver has been removed from the i386 and amd64 1440 kernel configuration files. This means uart(4) is now the 1441 default serial port driver on those platforms as well. 1442 1443 To prevent collisions with the sio(4) driver, the uart(4) driver 1444 uses different names for its device nodes. This means the 1445 onboard serial port will now most likely be called "ttyu0" 1446 instead of "ttyd0". You may need to reconfigure applications to 1447 use the new device names. 1448 1449 When using the serial port as a boot console, be sure to update 1450 /boot/device.hints and /etc/ttys before booting the new kernel. 1451 If you forget to do so, you can still manually specify the hints 1452 at the loader prompt: 1453 1454 set hint.uart.0.at="isa" 1455 set hint.uart.0.port="0x3F8" 1456 set hint.uart.0.flags="0x10" 1457 set hint.uart.0.irq="4" 1458 boot -s 1459 146020080609: 1461 The gpt(8) utility has been removed. Use gpart(8) to partition 1462 disks instead. 1463 146420080603: 1465 The version that Linuxulator emulates was changed from 2.4.2 1466 to 2.6.16. If you experience any problems with Linux binaries 1467 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1468 if it fixes the problem contact emulation mailing list. 1469 147020080525: 1471 ISDN4BSD (I4B) was removed from the src tree. You may need to 1472 update a your kernel configuration and remove relevant entries. 1473 147420080509: 1475 I have checked in code to support multiple routing tables. 1476 See the man pages setfib(1) and setfib(2). 1477 This is a hopefully backwards compatible version, 1478 but to make use of it you need to compile your kernel 1479 with options ROUTETABLES=2 (or more up to 16). 1480 148120080420: 1482 The 802.11 wireless support was redone to enable multi-bss 1483 operation on devices that are capable. The underlying device 1484 is no longer used directly but instead wlanX devices are 1485 cloned with ifconfig. This requires changes to rc.conf files. 1486 For example, change: 1487 ifconfig_ath0="WPA DHCP" 1488 to 1489 wlans_ath0=wlan0 1490 ifconfig_wlan0="WPA DHCP" 1491 see rc.conf(5) for more details. In addition, mergemaster of 1492 /etc/rc.d is highly recommended. Simultaneous update of userland 1493 and kernel wouldn't hurt either. 1494 1495 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1496 modules were merged into the base wlan module. All references 1497 to these modules (e.g. in kernel config files) must be removed. 1498 149920080408: 1500 psm(4) has gained write(2) support in native operation level. 1501 Arbitrary commands can be written to /dev/psm%d and status can 1502 be read back from it. Therefore, an application is responsible 1503 for status validation and error recovery. It is a no-op in 1504 other operation levels. 1505 150620080312: 1507 Support for KSE threading has been removed from the kernel. To 1508 run legacy applications linked against KSE libmap.conf may 1509 be used. The following libmap.conf may be used to ensure 1510 compatibility with any prior release: 1511 1512 libpthread.so.1 libthr.so.1 1513 libpthread.so.2 libthr.so.2 1514 libkse.so.3 libthr.so.3 1515 151620080301: 1517 The layout of struct vmspace has changed. This affects libkvm 1518 and any executables that link against libkvm and use the 1519 kvm_getprocs() function. In particular, but not exclusively, 1520 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1521 The effects are minimal, but it's advisable to upgrade world 1522 nonetheless. 1523 152420080229: 1525 The latest em driver no longer has support in it for the 1526 82575 adapter, this is now moved to the igb driver. The 1527 split was done to make new features that are incompatible 1528 with older hardware easier to do. 1529 153020080220: 1531 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1532 likewise the kernel option is now GEOM_LINUX_LVM. 1533 153420080211: 1535 The default NFS mount mode has changed from UDP to TCP for 1536 increased reliability. If you rely on (insecurely) NFS 1537 mounting across a firewall you may need to update your 1538 firewall rules. 1539 154020080208: 1541 Belatedly note the addition of m_collapse for compacting 1542 mbuf chains. 1543 154420080126: 1545 The fts(3) structures have been changed to use adequate 1546 integer types for their members and so to be able to cope 1547 with huge file trees. The old fts(3) ABI is preserved 1548 through symbol versioning in libc, so third-party binaries 1549 using fts(3) should still work, although they will not take 1550 advantage of the extended types. At the same time, some 1551 third-party software might fail to build after this change 1552 due to unportable assumptions made in its source code about 1553 fts(3) structure members. Such software should be fixed 1554 by its vendor or, in the worst case, in the ports tree. 1555 FreeBSD_version 800015 marks this change for the unlikely 1556 case that a portable fix is impossible. 1557 155820080123: 1559 To upgrade to -current after this date, you must be running 1560 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1561 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1562 156320071128: 1564 The ADAPTIVE_GIANT kernel option has been retired because its 1565 functionality is the default now. 1566 156720071118: 1568 The AT keyboard emulation of sunkbd(4) has been turned on 1569 by default. In order to make the special symbols of the Sun 1570 keyboards driven by sunkbd(4) work under X these now have 1571 to be configured the same way as Sun USB keyboards driven 1572 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1573 1574 Option "XkbLayout" "us" 1575 Option "XkbRules" "xorg" 1576 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1577 157820071024: 1579 It has been decided that it is desirable to provide ABI 1580 backwards compatibility to the FreeBSD 4/5/6 versions of the 1581 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1582 broken with the introduction of PCI domain support (see the 1583 20070930 entry). Unfortunately, this required the ABI of 1584 PCIOCGETCONF to be broken again in order to be able to 1585 provide backwards compatibility to the old version of that 1586 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1587 again. As for prominent ports this affects neither pciutils 1588 nor xorg-server this time, the hal port needs to be rebuilt 1589 however. 1590 159120071020: 1592 The misnamed kthread_create() and friends have been renamed 1593 to kproc_create() etc. Many of the callers already 1594 used kproc_start().. 1595 I will return kthread_create() and friends in a while 1596 with implementations that actually create threads, not procs. 1597 Renaming corresponds with version 800002. 1598 159920071010: 1600 RELENG_7 branched. 1601 1602COMMON ITEMS: 1603 1604 General Notes 1605 ------------- 1606 Avoid using make -j when upgrading. While generally safe, there are 1607 sometimes problems using -j to upgrade. If your upgrade fails with 1608 -j, please try again without -j. From time to time in the past there 1609 have been problems using -j with buildworld and/or installworld. This 1610 is especially true when upgrading between "distant" versions (eg one 1611 that cross a major release boundary or several minor releases, or when 1612 several months have passed on the -current branch). 1613 1614 Sometimes, obscure build problems are the result of environment 1615 poisoning. This can happen because the make utility reads its 1616 environment when searching for values for global variables. To run 1617 your build attempts in an "environmental clean room", prefix all make 1618 commands with 'env -i '. See the env(1) manual page for more details. 1619 1620 When upgrading from one major version to another it is generally best 1621 to upgrade to the latest code in the currently installed branch first, 1622 then do an upgrade to the new branch. This is the best-tested upgrade 1623 path, and has the highest probability of being successful. Please try 1624 this approach before reporting problems with a major version upgrade. 1625 1626 ZFS notes 1627 --------- 1628 When upgrading the boot ZFS pool to a new version, always follow 1629 these two steps: 1630 1631 1.) recompile and reinstall the ZFS boot loader and boot block 1632 (this is part of "make buildworld" and "make installworld") 1633 1634 2.) update the ZFS boot block on your boot drive 1635 1636 The following example updates the ZFS boot block on the first 1637 partition (freebsd-boot) of a GPT partitioned drive ad0: 1638 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1639 1640 Non-boot pools do not need these updates. 1641 1642 To build a kernel 1643 ----------------- 1644 If you are updating from a prior version of FreeBSD (even one just 1645 a few days old), you should follow this procedure. It is the most 1646 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1647 1648 make kernel-toolchain 1649 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1650 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1651 1652 To test a kernel once 1653 --------------------- 1654 If you just want to boot a kernel once (because you are not sure 1655 if it works, or if you want to boot a known bad kernel to provide 1656 debugging information) run 1657 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1658 nextboot -k testkernel 1659 1660 To just build a kernel when you know that it won't mess you up 1661 -------------------------------------------------------------- 1662 This assumes you are already running a CURRENT system. Replace 1663 ${arch} with the architecture of your machine (e.g. "i386", 1664 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1665 1666 cd src/sys/${arch}/conf 1667 config KERNEL_NAME_HERE 1668 cd ../compile/KERNEL_NAME_HERE 1669 make depend 1670 make 1671 make install 1672 1673 If this fails, go to the "To build a kernel" section. 1674 1675 To rebuild everything and install it on the current system. 1676 ----------------------------------------------------------- 1677 # Note: sometimes if you are running current you gotta do more than 1678 # is listed here if you are upgrading from a really old current. 1679 1680 <make sure you have good level 0 dumps> 1681 make buildworld 1682 make kernel KERNCONF=YOUR_KERNEL_HERE 1683 [1] 1684 <reboot in single user> [3] 1685 mergemaster -p [5] 1686 make installworld 1687 mergemaster -i [4] 1688 make delete-old [6] 1689 <reboot> 1690 1691 1692 To cross-install current onto a separate partition 1693 -------------------------------------------------- 1694 # In this approach we use a separate partition to hold 1695 # current's root, 'usr', and 'var' directories. A partition 1696 # holding "/", "/usr" and "/var" should be about 2GB in 1697 # size. 1698 1699 <make sure you have good level 0 dumps> 1700 <boot into -stable> 1701 make buildworld 1702 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1703 <maybe newfs current's root partition> 1704 <mount current's root partition on directory ${CURRENT_ROOT}> 1705 make installworld DESTDIR=${CURRENT_ROOT} 1706 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1707 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1708 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1709 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1710 <reboot into current> 1711 <do a "native" rebuild/install as described in the previous section> 1712 <maybe install compatibility libraries from ports/misc/compat*> 1713 <reboot> 1714 1715 1716 To upgrade in-place from stable to current 1717 ---------------------------------------------- 1718 <make sure you have good level 0 dumps> 1719 make buildworld [9] 1720 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1721 [1] 1722 <reboot in single user> [3] 1723 mergemaster -p [5] 1724 make installworld 1725 mergemaster -i [4] 1726 make delete-old [6] 1727 <reboot> 1728 1729 Make sure that you've read the UPDATING file to understand the 1730 tweaks to various things you need. At this point in the life 1731 cycle of current, things change often and you are on your own 1732 to cope. The defaults can also change, so please read ALL of 1733 the UPDATING entries. 1734 1735 Also, if you are tracking -current, you must be subscribed to 1736 freebsd-current@freebsd.org. Make sure that before you update 1737 your sources that you have read and understood all the recent 1738 messages there. If in doubt, please track -stable which has 1739 much fewer pitfalls. 1740 1741 [1] If you have third party modules, such as vmware, you 1742 should disable them at this point so they don't crash your 1743 system on reboot. 1744 1745 [3] From the bootblocks, boot -s, and then do 1746 fsck -p 1747 mount -u / 1748 mount -a 1749 cd src 1750 adjkerntz -i # if CMOS is wall time 1751 Also, when doing a major release upgrade, it is required that 1752 you boot into single user mode to do the installworld. 1753 1754 [4] Note: This step is non-optional. Failure to do this step 1755 can result in a significant reduction in the functionality of the 1756 system. Attempting to do it by hand is not recommended and those 1757 that pursue this avenue should read this file carefully, as well 1758 as the archives of freebsd-current and freebsd-hackers mailing lists 1759 for potential gotchas. The -U option is also useful to consider. 1760 See mergemaster(8) for more information. 1761 1762 [5] Usually this step is a noop. However, from time to time 1763 you may need to do this if you get unknown user in the following 1764 step. It never hurts to do it all the time. You may need to 1765 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1766 install) after the buildworld before this step if you last updated 1767 from [78]-stable or 9-stable before 20130430. 1768 1769 [6] This only deletes old files and directories. Old libraries 1770 can be deleted by "make delete-old-libs", but you have to make 1771 sure that no program is using those libraries anymore. 1772 1773 [8] In order to have a kernel that can run the 4.x binaries needed to 1774 do an installworld, you must include the COMPAT_FREEBSD4 option in 1775 your kernel. Failure to do so may leave you with a system that is 1776 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1777 required to run the 5.x binaries on more recent kernels. And so on 1778 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1779 1780 Make sure that you merge any new devices from GENERIC since the 1781 last time you updated your kernel config file. 1782 1783 [9] When checking out sources, you must include the -P flag to have 1784 cvs prune empty directories. 1785 1786 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1787 "?=" instead of the "=" assignment operator, so that buildworld can 1788 override the CPUTYPE if it needs to. 1789 1790 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1791 not on the command line, or in /etc/make.conf. buildworld will 1792 warn if it is improperly defined. 1793FORMAT: 1794 1795This file contains a list, in reverse chronological order, of major 1796breakages in tracking -current. It is not guaranteed to be a complete 1797list of such breakages, and only contains entries since October 10, 2007. 1798If you need to see UPDATING entries from before that date, you will need 1799to fetch an UPDATING file from an older FreeBSD release. 1800 1801Copyright information: 1802 1803Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1804 1805Redistribution, publication, translation and use, with or without 1806modification, in full or in part, in any form or format of this 1807document are permitted without further permission from the author. 1808 1809THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1810IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1811WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1812DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1813INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1814(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1815SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1816HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1817STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1818IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1819POSSIBILITY OF SUCH DAMAGE. 1820 1821Contact Warner Losh if you have any questions about your use of 1822this document. 1823 1824$FreeBSD: releng/9.3/UPDATING 285980 2015-07-28 19:59:22Z delphij $ 1825