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 9Items affecting the ports and packages system can be found in 10/usr/ports/UPDATING. Please read that file before running portupgrade. 11 12NOTE TO PEOPLE WHO THINK THAT FreeBSD 9.x IS SLOW: 13 FreeBSD 9.x has many debugging features turned on, in both the kernel 14 and userland. These features attempt to detect incorrect use of 15 system primitives, and encourage loud failure through extra sanity 16 checking and fail stop semantics. They also substantially impact 17 system performance. If you want to do performance measurement, 18 benchmarking, and optimization, you'll want to turn them off. This 19 includes various WITNESS- related kernel options, INVARIANTS, malloc 20 debugging flags in userland, and various verbose features in the 21 kernel. Many developers choose to disable these features on build 22 machines to maximize performance. (To disable malloc debugging, run 23 ln -s aj /etc/malloc.conf.) 24 2520101002: 26 The man(1) utility has been replaced by a new version that no longer 27 uses /etc/manpath.config. Please consult man.conf(5) for how to 28 migrate local entries to the new format. 29 3020100928: 31 The copyright strings printed by login(1) and sshd(8) at the time of a 32 new connection have been removed to follow other operating systems and 33 upstream sshd. 34 3520100915: 36 A workaround for a fixed ld bug has been removed in kernel code, 37 so make sure that your system ld is built from sources after 38 revision 210245 (r211583 if building head kernel on stable/8, 39 r211584 for stable/7). A symptom of incorrect ld version is 40 different addresses for set_pcpu section and __start_set_pcpu 41 symbol in kernel and/or modules. 42 4320100913: 44 The $ipv6_prefer variable in rc.conf(5) has been split into 45 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 46 47 The $ip6addrctl_policy is a variable to choose a pre-defined 48 address selection policy set by ip6addrctl(8). A value 49 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 50 default is "AUTO". 51 52 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 53 flag (see an entry of 20090926) is set on an interface with no 54 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 55 security reason. If you want IPv6 link-local address on all 56 interfaces by default, set this to "YES". 57 58 The old ipv6_prefer="YES" is equivalent to 59 ipv6_activate_all_interfaces="YES" and 60 ip6addrctl_policy="ipv6_prefer". 61 6220100913: 63 DTrace has grown support for userland tracing. Due to this, DTrace is 64 now i386 and amd64 only. 65 dtruss(1) is now installed by default on those systems and a new 66 kernel module is needed for userland tracing: fasttrap. 67 No changes to your kernel config file are necessary to enable 68 userland tracing, but you might consider adding 'STRIP=' and 69 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 70 to have informative userland stack traces in DTrace (ustack). 71 7220100725: 73 The acpi_aiboost(4) driver has been removed in favor of the new 74 aibs(4) driver. You should update your kernel configuration file. 75 7620100722: 77 BSD grep has been imported to the base system and it is built by 78 default. It is completely BSD licensed, highly GNU-compatible, uses 79 less memory than its GNU counterpart and has a small codebase. 80 However, it is slower than its GNU counterpart, which is mostly 81 noticeable for larger searches, for smaller ones it is measurable 82 but not significant. The reason is complex, the most important factor 83 is that we lack a modern and efficient regex library and GNU 84 overcomes this by optimizing the searches internally. Future work 85 on improving the regex performance is planned, for the meantime, 86 users that need better performance, can build GNU grep instead by 87 setting the WITH_GNU_GREP knob. 88 8920100713: 90 Due to the import of powerpc64 support, all existing powerpc kernel 91 configuration files must be updated with a machine directive like this: 92 machine powerpc powerpc 93 94 In addition, an updated config(8) is required to build powerpc kernels 95 after this change. 96 9720100713: 98 A new version of ZFS (version 15) has been merged to -HEAD. 99 This version uses a python library for the following subcommands: 100 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 101 For full functionality of these commands the following port must 102 be installed: sysutils/py-zfs 103 10420100429: 105 'vm_page's are now hashed by physical address to an array of mutexes. 106 Currently this is only used to serialize access to hold_count. Over 107 time the page queue mutex will be peeled away. This changes the size 108 of pmap on every architecture. And requires all callers of vm_page_hold 109 and vm_page_unhold to be updated. 110 11120100402: 112 WITH_CTF can now be specified in src.conf (not recommended, there 113 are some problems with static executables), make.conf (would also 114 affect ports which do not use GNU make and do not override the 115 compile targets) or in the kernel config (via "makeoptions 116 WITH_CTF=yes"). 117 When WITH_CTF was specified there before this was silently ignored, 118 so make sure that WITH_CTF is not used in places which could lead 119 to unwanted behavior. 120 12120100311: 122 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 123 to allow 32-bit compatibility on non-x86 platforms. All kernel 124 configurations on amd64 and ia64 platforms using these options must 125 be modified accordingly. 126 12720100113: 128 The utmp user accounting database has been replaced with utmpx, 129 the user accounting interface standardized by POSIX. 130 Unfortunately the semantics of utmp and utmpx don't match, 131 making it practically impossible to support both interfaces. 132 The user accounting database is used by tools like finger(1), 133 last(1), talk(1), w(1) and ac(8). 134 135 All applications in the base system use utmpx. This means only 136 local binaries (e.g. from the ports tree) may still use these 137 utmp database files. These applications must be rebuilt to make 138 use of utmpx. 139 140 After the system has been upgraded, it is safe to remove the old 141 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 142 assuming their contents is of no importance anymore. Old wtmp 143 databases can only be used by last(1) and ac(8) after they have 144 been converted to the new format using wtmpcvt(1). 145 14620100108: 147 Introduce the kernel thread "deadlock resolver" (which can be enabled 148 via the DEADLKRES option, see NOTES for more details) and the 149 sleepq_type() function for sleepqueues. 150 15120091202: 152 The rc.firewall and rc.firewall6 were unified, and 153 rc.firewall6 and rc.d/ip6fw were removed. 154 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 155 variables are obsoleted. Instead, the following new rc 156 variables are added to rc.d/ipfw: 157 158 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 159 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 160 firewall_simple_onet_ipv6, firewall_trusted_ipv6 161 162 The meanings correspond to the relevant IPv4 variables. 163 16420091125: 165 8.0-RELEASE. 166 16720091113: 168 The default terminal emulation for syscons(4) has been changed 169 from cons25 to xterm on all platforms except pc98. This means 170 that the /etc/ttys file needs to be updated to ensure correct 171 operation of applications on the console. 172 173 The terminal emulation style can be toggled per window by using 174 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 175 options can be used to change the compile-time default back to 176 cons25. 177 178 To prevent graphical artifacts, make sure the TERM environment 179 variable is set to match the terminal emulation that is being 180 performed by syscons(4). 181 18220091109: 183 The layout of the structure ieee80211req_scan_result has changed. 184 Applications that require wireless scan results (e.g. ifconfig(8)) 185 from net80211 need to be recompiled. 186 187 Applications such as wpa_supplicant(8) may require a full world 188 build without using NO_CLEAN in order to get synchronized with the 189 new structure. 190 19120091025: 192 The iwn(4) driver has been updated to support the 5000 and 5150 series. 193 There's one kernel module for each firmware. Adding "device iwnfw" 194 to the kernel configuration file means including all three firmware 195 images inside the kernel. If you want to include just the one for 196 your wireless card, use the the devices iwn4965fw, iwn5000fw or 197 iwn5150fw. 198 19920090926: 200 The rc.d/network_ipv6, IPv6 configuration script has been integrated 201 into rc.d/netif. The changes are the following: 202 203 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 204 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 205 Note that both variables need the "inet6" keyword at the head. 206 207 Do not set $ipv6_network_interfaces manually if you do not 208 understand what you are doing. It is not needed in most cases. 209 210 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 211 they are obsolete. 212 213 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 214 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 215 216 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 217 all configured interfaces have "inet6 accept_rtadv" in the 218 $ifconfig_IF_ipv6. These are for backward compatibility. 219 220 3. A new variable $ipv6_prefer has been added. If NO, IPv6 221 functionality of interfaces with no corresponding 222 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 223 and the default address selection policy of ip6addrctl(8) 224 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 225 Note that if you want to configure IPv6 functionality on the 226 disabled interfaces after boot, first you need to clear the flag by 227 using ifconfig(8) like: 228 229 ifconfig em0 inet6 -ifdisabled 230 231 If YES, the default address selection policy is set as 232 IPv6-preferred. 233 234 The default value of $ipv6_prefer is NO. 235 236 4. If your system need to receive Router Advertisement messages, 237 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 238 scripts automatically invoke rtsol(8) when the interface becomes 239 UP. The Router Advertisement messages are used for SLAAC 240 (State-Less Address AutoConfiguration). 241 24220090922: 243 802.11s D3.03 support was committed. This is incompatible with the 244 previous code, which was based on D3.0. 245 24620090912: 247 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 248 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 249 control whether accepting Router Advertisement messages or not. 250 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 251 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 252 The ifconfig(8) utility now supports these flags. 253 25420090910: 255 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 256 mount(8) and -a option for df(1) to see them. 257 25820090825: 259 The old tunable hw.bus.devctl_disable has been superseded by 260 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 261 replaced by hw.bus.devctl_queue=0. The default for this new tunable 262 is 1000. 263 26420090813: 265 Remove the option STOP_NMI. The default action is now to use NMI only 266 for KDB via the newly introduced function stop_cpus_hard() and 267 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 268 26920090803: 270 The stable/8 branch created in subversion. This corresponds to the 271 RELENG_8 branch in CVS. 272 27320090719: 274 Bump the shared library version numbers for all libraries that do not 275 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 276 __FreeBSD_version to 800105. 277 27820090714: 279 Due to changes in the implementation of virtual network stack support, 280 all network-related kernel modules must be recompiled. As this change 281 breaks the ABI, bump __FreeBSD_version to 800104. 282 28320090713: 284 The TOE interface to the TCP syncache has been modified to remove 285 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 286 The cxgb driver is the only TOE consumer affected by this change, and 287 needs to be recompiled along with the kernel. As this change breaks 288 the ABI, bump __FreeBSD_version to 800103. 289 29020090712: 291 Padding has been added to struct tcpcb, sackhint and tcpstat in 292 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 293 maintaining the ABI. However, this change breaks the ABI, so bump 294 __FreeBSD_version to 800102. User space tools that rely on the size of 295 any of these structs (e.g. sockstat) need to be recompiled. 296 29720090630: 298 The NFS_LEGACYRPC option has been removed along with the old kernel 299 RPC implementation that this option selected. Kernel configurations 300 may need to be adjusted. 301 30220090629: 303 The network interface device nodes at /dev/net/<interface> have been 304 removed. All ioctl operations can be performed the normal way using 305 routing sockets. The kqueue functionality can generally be replaced 306 with routing sockets. 307 30820090628: 309 The documentation from the FreeBSD Documentation Project (Handbook, 310 FAQ, etc.) is now installed via packages by sysinstall(8) and under 311 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 312 31320090624: 314 The ABI of various structures related to the SYSV IPC API have been 315 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 316 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 317 800100. 318 31920090622: 320 Layout of struct vnet has changed as routing related variables were 321 moved to their own Vimage module. Modules need to be recompiled. Bump 322 __FreeBSD_version to 800099. 323 32420090619: 325 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 326 respectively. As long as no more than 16 groups per process are used, 327 no changes should be visible. When more than 16 groups are used, old 328 binaries may fail if they call getgroups() or getgrouplist() with 329 statically sized storage. Recompiling will work around this, but 330 applications should be modified to use dynamically allocated storage 331 for group arrays as POSIX.1-2008 does not cap an implementation's 332 number of supported groups at NGROUPS_MAX+1 as previous versions did. 333 334 NFS and portalfs mounts may also be affected as the list of groups is 335 truncated to 16. Users of NFS who use more than 16 groups, should 336 take care that negative group permissions are not used on the exported 337 file systems as they will not be reliable unless a GSSAPI based 338 authentication method is used. 339 34020090616: 341 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 342 option compiles in the support for adaptive spinning for lockmgrs 343 which want to enable it. The lockinit() function now accepts the flag 344 LK_ADAPTIVE in order to make the lock object subject to adaptive 345 spinning when both held in write and read mode. 346 34720090613: 348 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 349 changed. User applications that use this ioctl need to be rebuilt. 350 35120090611: 352 The layout of struct thread has changed. Kernel and modules need to 353 be rebuilt. 354 35520090608: 356 The layout of structs ifnet, domain, protosw and vnet_net has changed. 357 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 358 35920090602: 360 window(1) has been removed from the base system. It can now be 361 installed from ports. The port is called misc/window. 362 36320090601: 364 The way we are storing and accessing `routing table' entries has 365 changed. Programs reading the FIB, like netstat, need to be 366 re-compiled. 367 36820090601: 369 A new netisr implementation has been added for FreeBSD 8. Network 370 file system modules, such as igmp, ipdivert, and others, should be 371 rebuilt. 372 Bump __FreeBSD_version to 800096. 373 37420090530: 375 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 376 more valid. 377 37820090530: 379 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 380 Bump __FreeBSD_version to 800094. 381 38220090529: 383 Add mnt_xflag field to 'struct mount'. File system modules need to be 384 rebuilt. 385 Bump __FreeBSD_version to 800093. 386 38720090528: 388 The compiling option ADAPTIVE_SX has been retired while it has been 389 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 390 The KPI for sx_init_flags() changes as accepting flags: 391 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 392 been introduced in order to handle the reversed logic. 393 Bump __FreeBSD_version to 800092. 394 39520090527: 396 Add support for hierarchical jails. Remove global securelevel. 397 Bump __FreeBSD_version to 800091. 398 39920090523: 400 The layout of struct vnet_net has changed, therefore modules 401 need to be rebuilt. 402 Bump __FreeBSD_version to 800090. 403 40420090523: 405 The newly imported zic(8) produces a new format in the output. Please 406 run tzsetup(8) to install the newly created data to /etc/localtime. 407 40820090520: 409 The sysctl tree for the usb stack has renamed from hw.usb2.* to 410 hw.usb.* and is now consistent again with previous releases. 411 41220090520: 413 802.11 monitor mode support was revised and driver api's were changed. 414 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 415 of DLT_IEEE802_11. No user-visible data structures were changed but 416 applications that use DLT_IEEE802_11 may require changes. 417 Bump __FreeBSD_version to 800088. 418 41920090430: 420 The layout of the following structs has changed: sysctl_oid, 421 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 422 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 423 panics may be experienced. World rebuild is required for 424 correctly checking networking state from userland. 425 Bump __FreeBSD_version to 800085. 426 42720090429: 428 MLDv2 and Source-Specific Multicast (SSM) have been merged 429 to the IPv6 stack. VIMAGE hooks are in but not yet used. 430 The implementation of SSM within FreeBSD's IPv6 stack closely 431 follows the IPv4 implementation. 432 433 For kernel developers: 434 435 * The most important changes are that the ip6_output() and 436 ip6_input() paths no longer take the IN6_MULTI_LOCK, 437 and this lock has been downgraded to a non-recursive mutex. 438 439 * As with the changes to the IPv4 stack to support SSM, filtering 440 of inbound multicast traffic must now be performed by transport 441 protocols within the IPv6 stack. This does not apply to TCP and 442 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 443 444 * The KPIs used by IPv6 multicast are similar to those used by 445 the IPv4 stack, with the following differences: 446 * im6o_mc_filter() is analogous to imo_multicast_filter(). 447 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 448 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 449 * IN6_LOOKUP_MULTI() has been deprecated and removed. 450 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 451 for MLDv1 have an additional 'timer' argument which is used to 452 jitter the initial membership report for the solicited-node 453 multicast membership on-link. 454 * This is not strictly needed for MLDv2, which already jitters 455 its report transmissions. However, the 'timer' argument is 456 preserved in case MLDv1 is active on the interface. 457 458 * The KAME linked-list based IPv6 membership implementation has 459 been refactored to use a vector similar to that used by the IPv4 460 stack. 461 Code which maintains a list of its own multicast memberships 462 internally, e.g. carp, has been updated to reflect the new 463 semantics. 464 465 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 466 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 467 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 468 implementation constraint which needs to be addressed in HEAD. 469 470 For application developers: 471 472 * The changes are broadly similar to those made for the IPv4 473 stack. 474 475 * The use of IPv4 and IPv6 multicast socket options on the same 476 socket, using mapped addresses, HAS NOT been tested or supported. 477 478 * There are a number of issues with the implementation of various 479 IPv6 multicast APIs which need to be resolved in the API surface 480 before the implementation is fully compatible with KAME userland 481 use, and these are mostly to do with interface index treatment. 482 483 * The literature available discusses the use of either the delta / ASM 484 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 485 using setsourcefilter(3)/getsourcefilter(3). For more information 486 please refer to RFC 3768, 'Socket Interface Extensions for 487 Multicast Source Filters'. 488 489 * Applications which use the published RFC 3678 APIs should be fine. 490 491 For systems administrators: 492 493 * The mtest(8) utility has been refactored to support IPv6, in 494 addition to IPv4. Interface addresses are no longer accepted 495 as arguments, their names must be used instead. The utility 496 will map the interface name to its first IPv4 address as 497 returned by getifaddrs(3). 498 499 * The ifmcstat(8) utility has also been updated to print the MLDv2 500 endpoint state and source filter lists via sysctl(3). 501 502 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 503 loopback of IPv6 multicast datagrams by default; it defaults to 1 504 to preserve the existing behaviour. Disabling multicast loopback is 505 recommended for optimal system performance. 506 507 * The IPv6 MROUTING code has been changed to examine this sysctl 508 instead of attempting to perform a group lookup before looping 509 back forwarded datagrams. 510 511 Bump __FreeBSD_version to 800084. 512 51320090422: 514 Implement low-level Bluetooth HCI API. 515 Bump __FreeBSD_version to 800083. 516 51720090419: 518 The layout of struct malloc_type, used by modules to register new 519 memory allocation types, has changed. Most modules will need to 520 be rebuilt or panics may be experienced. 521 Bump __FreeBSD_version to 800081. 522 52320090415: 524 Anticipate overflowing inp_flags - add inp_flags2. 525 This changes most offsets in inpcb, so checking v4 connection 526 state will require a world rebuild. 527 Bump __FreeBSD_version to 800080. 528 52920090415: 530 Add an llentry to struct route and struct route_in6. Modules 531 embedding a struct route will need to be recompiled. 532 Bump __FreeBSD_version to 800079. 533 53420090414: 535 The size of rt_metrics_lite and by extension rtentry has changed. 536 Networking administration apps will need to be recompiled. 537 The route command now supports show as an alias for get, weighting 538 of routes, sticky and nostick flags to alter the behavior of stateful 539 load balancing. 540 Bump __FreeBSD_version to 800078. 541 54220090408: 543 Do not use Giant for kbdmux(4) locking. This is wrong and 544 apparently causing more problems than it solves. This will 545 re-open the issue where interrupt handlers may race with 546 kbdmux(4) in polling mode. Typical symptoms include (but 547 not limited to) duplicated and/or missing characters when 548 low level console functions (such as gets) are used while 549 interrupts are enabled (for example geli password prompt, 550 mountroot prompt etc.). Disabling kbdmux(4) may help. 551 55220090407: 553 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 554 kernel modules referencing any of the above need to be recompiled. 555 Bump __FreeBSD_version to 800075. 556 55720090320: 558 GEOM_PART has become the default partition slicer for storage devices, 559 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 560 introduces some changes: 561 562 MSDOS/EBR: the devices created from MSDOS extended partition entries 563 (EBR) can be named differently than with GEOM_MBR and are now symlinks 564 to devices with offset-based names. fstabs may need to be modified. 565 566 BSD: the "geometry does not match label" warning is harmless in most 567 cases but it points to problems in file system misalignment with 568 disk geometry. The "c" partition is now implicit, covers the whole 569 top-level drive and cannot be (mis)used by users. 570 571 General: Kernel dumps are now not allowed to be written to devices 572 whose partition types indicate they are meant to be used for file 573 systems (or, in case of MSDOS partitions, as something else than 574 the "386BSD" type). 575 576 Most of these changes date approximately from 200812. 577 57820090319: 579 The uscanner(4) driver has been removed from the kernel. This follows 580 Linux removing theirs in 2.6 and making libusb the default interface 581 (supported by sane). 582 58320090319: 584 The multicast forwarding code has been cleaned up. netstat(1) 585 only relies on KVM now for printing bandwidth upcall meters. 586 The IPv4 and IPv6 modules are split into ip_mroute_mod and 587 ip6_mroute_mod respectively. The config(5) options for statically 588 compiling this code remain the same, i.e. 'options MROUTING'. 589 59020090315: 591 Support for the IFF_NEEDSGIANT network interface flag has been 592 removed, which means that non-MPSAFE network device drivers are no 593 longer supported. In particular, if_ar, if_sr, and network device 594 drivers from the old (legacy) USB stack can no longer be built or 595 used. 596 59720090313: 598 POSIX.1 Native Language Support (NLS) has been enabled in libc and 599 a bunch of new language catalog files have also been added. 600 This means that some common libc messages are now localized and 601 they depend on the LC_MESSAGES environmental variable. 602 60320090313: 604 The k8temp(4) driver has been renamed to amdtemp(4) since 605 support for Family 10 and Family 11 CPU families was added. 606 60720090309: 608 IGMPv3 and Source-Specific Multicast (SSM) have been merged 609 to the IPv4 stack. VIMAGE hooks are in but not yet used. 610 611 For kernel developers, the most important changes are that the 612 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 613 and this lock has been downgraded to a non-recursive mutex. 614 615 Transport protocols (UDP, Raw IP) are now responsible for filtering 616 inbound multicast traffic according to group membership and source 617 filters. The imo_multicast_filter() KPI exists for this purpose. 618 Transports which do not use multicast (SCTP, TCP) already reject 619 multicast by default. Forwarding and receive performance may improve 620 as a mutex acquisition is no longer needed in the ip_input() 621 low-level input path. in_addmulti() and in_delmulti() are shimmed 622 to new KPIs which exist to support SSM in-kernel. 623 624 For application developers, it is recommended that loopback of 625 multicast datagrams be disabled for best performance, as this 626 will still cause the lock to be taken for each looped-back 627 datagram transmission. The net.inet.ip.mcast.loop sysctl may 628 be tuned to 0 to disable loopback by default; it defaults to 1 629 to preserve the existing behaviour. 630 631 For systems administrators, to obtain best performance with 632 multicast reception and multiple groups, it is always recommended 633 that a card with a suitably precise hash filter is used. Hash 634 collisions will still result in the lock being taken within the 635 transport protocol input path to check group membership. 636 637 If deploying FreeBSD in an environment with IGMP snooping switches, 638 it is recommended that the net.inet.igmp.sendlocal sysctl remain 639 enabled; this forces 224.0.0.0/24 group membership to be announced 640 via IGMP. 641 642 The size of 'struct igmpstat' has changed; netstat needs to be 643 recompiled to reflect this. 644 Bump __FreeBSD_version to 800070. 645 64620090309: 647 libusb20.so.1 is now installed as libusb.so.1 and the ports system 648 updated to use it. This requires a buildworld/installworld in order to 649 update the library and dependencies (usbconfig, etc). Its advisable to 650 rebuild all ports which uses libusb. More specific directions are given 651 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 652 libusb are no longer required and can be removed. 653 65420090302: 655 A workaround is committed to allow the creation of System V shared 656 memory segment of size > 2 GB on the 64-bit architectures. 657 Due to a limitation of the existing ABI, the shm_segsz member 658 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 659 wrong for large segments. Note that limits must be explicitly 660 raised to allow such segments to be created. 661 66220090301: 663 The layout of struct ifnet has changed, requiring a rebuild of all 664 network device driver modules. 665 66620090227: 667 The /dev handling for the new USB stack has changed, a 668 buildworld/installworld is required for libusb20. 669 67020090223: 671 The new USB2 stack has now been permanently moved in and all kernel and 672 module names reverted to their previous values (eg, usb, ehci, ohci, 673 ums, ...). The old usb stack can be compiled in by prefixing the name 674 with the letter 'o', the old usb modules have been removed. 675 Updating entry 20090216 for xorg and 20090215 for libmap may still 676 apply. 677 67820090217: 679 The rc.conf(5) option if_up_delay has been renamed to 680 defaultroute_delay to better reflect its purpose. If you have 681 customized this setting in /etc/rc.conf you need to update it to 682 use the new name. 683 68420090216: 685 xorg 7.4 wants to configure its input devices via hald which does not 686 yet work with USB2. If the keyboard/mouse does not work in xorg then 687 add 688 Option "AllowEmptyInput" "off" 689 to your ServerLayout section. This will cause X to use the configured 690 kbd and mouse sections from your xorg.conf. 691 69220090215: 693 The GENERIC kernels for all architectures now default to the new USB2 694 stack. No kernel config options or code have been removed so if a 695 problem arises please report it and optionally revert to the old USB 696 stack. If you are loading USB kernel modules or have a custom kernel 697 that includes GENERIC then ensure that usb names are also changed over, 698 eg uftdi -> usb2_serial_ftdi. 699 700 Older programs linked against the ports libusb 0.1 need to be 701 redirected to the new stack's libusb20. /etc/libmap.conf can 702 be used for this: 703 # Map old usb library to new one for usb2 stack 704 libusb-0.1.so.8 libusb20.so.1 705 70620090209: 707 All USB ethernet devices now attach as interfaces under the name ueN 708 (eg. ue0). This is to provide a predictable name as vendors often 709 change usb chipsets in a product without notice. 710 71120090203: 712 The ichsmb(4) driver has been changed to require SMBus slave 713 addresses be left-justified (xxxxxxx0b) rather than right-justified. 714 All of the other SMBus controller drivers require left-justified 715 slave addresses, so this change makes all the drivers provide the 716 same interface. 717 71820090201: 719 INET6 statistics (struct ip6stat) was updated. 720 netstat(1) needs to be recompiled. 721 72220090119: 723 NTFS has been removed from GENERIC kernel on amd64 to match 724 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 725 will load ntfs.ko module automatically when NTFS support is 726 actually needed, unless ntfs.ko is not installed or security 727 level prohibits loading kernel modules. If either is the case, 728 "options NTFS" has to be added into kernel config. 729 73020090115: 731 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 732 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 733 800061. User space tools that rely on the size of struct tcpcb in 734 tcp_var.h (e.g. sockstat) need to be recompiled. 735 73620081225: 737 ng_tty(4) module updated to match the new TTY subsystem. 738 Due to API change, user-level applications must be updated. 739 New API support added to mpd5 CVS and expected to be present 740 in next mpd5.3 release. 741 74220081219: 743 With __FreeBSD_version 800060 the makefs tool is part of 744 the base system (it was a port). 745 74620081216: 747 The afdata and ifnet locks have been changed from mutexes to 748 rwlocks, network modules will need to be re-compiled. 749 75020081214: 751 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 752 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 753 The new code reduced struct rtentry{} by 16 bytes on 32-bit 754 architecture and 40 bytes on 64-bit architecture. The userland 755 applications "arp" and "ndp" have been updated accordingly. 756 The output from "netstat -r" shows only routing entries and 757 none of the L2 information. 758 75920081130: 760 __FreeBSD_version 800057 marks the switchover from the 761 binary ath hal to source code. Users must add the line: 762 763 options AH_SUPPORT_AR5416 764 765 to their kernel config files when specifying: 766 767 device ath_hal 768 769 The ath_hal module no longer exists; the code is now compiled 770 together with the driver in the ath module. It is now 771 possible to tailor chip support (i.e. reduce the set of chips 772 and thereby the code size); consult ath_hal(4) for details. 773 77420081121: 775 __FreeBSD_version 800054 adds memory barriers to 776 <machine/atomic.h>, new interfaces to ifnet to facilitate 777 multiple hardware transmit queues for cards that support 778 them, and a lock-less ring-buffer implementation to 779 enable drivers to more efficiently manage queueing of 780 packets. 781 78220081117: 783 A new version of ZFS (version 13) has been merged to -HEAD. 784 This version has zpool attribute "listsnapshots" off by 785 default, which means "zfs list" does not show snapshots, 786 and is the same as Solaris behavior. 787 78820081028: 789 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 790 79120081009: 792 The uhci, ohci, ehci and slhci USB Host controller drivers have 793 been put into separate modules. If you load the usb module 794 separately through loader.conf you will need to load the 795 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 796 controller add the following to loader.conf: 797 798 uhci_load="YES" 799 ehci_load="YES" 800 80120081009: 802 The ABI used by the PMC toolset has changed. Please keep 803 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 804 sync. 805 80620081009: 807 atapci kernel module now includes only generic PCI ATA 808 driver. AHCI driver moved to ataahci kernel module. 809 All vendor-specific code moved into separate kernel modules: 810 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 811 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 812 atamarvell, atamicron, atanational, atanetcell, atanvidia, 813 atapromise, ataserverworks, atasiliconimage, atasis, atavia 814 81520080820: 816 The TTY subsystem of the kernel has been replaced by a new 817 implementation, which provides better scalability and an 818 improved driver model. Most common drivers have been migrated to 819 the new TTY subsystem, while others have not. The following 820 drivers have not yet been ported to the new TTY layer: 821 822 PCI/ISA: 823 cy, digi, rc, rp, sio 824 825 USB: 826 ubser, ucycom 827 828 Line disciplines: 829 ng_h4, ng_tty, ppp, sl, snp 830 831 Adding these drivers to your kernel configuration file shall 832 cause compilation to fail. 833 83420080818: 835 ntpd has been upgraded to 4.2.4p5. 836 83720080801: 838 OpenSSH has been upgraded to 5.1p1. 839 840 For many years, FreeBSD's version of OpenSSH preferred DSA 841 over RSA for host and user authentication keys. With this 842 upgrade, we've switched to the vendor's default of RSA over 843 DSA. This may cause upgraded clients to warn about unknown 844 host keys even for previously known hosts. Users should 845 follow the usual procedure for verifying host keys before 846 accepting the RSA key. 847 848 This can be circumvented by setting the "HostKeyAlgorithms" 849 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 850 command line. 851 852 Please note that the sequence of keys offered for 853 authentication has been changed as well. You may want to 854 specify IdentityFile in a different order to revert this 855 behavior. 856 85720080713: 858 The sio(4) driver has been removed from the i386 and amd64 859 kernel configuration files. This means uart(4) is now the 860 default serial port driver on those platforms as well. 861 862 To prevent collisions with the sio(4) driver, the uart(4) driver 863 uses different names for its device nodes. This means the 864 onboard serial port will now most likely be called "ttyu0" 865 instead of "ttyd0". You may need to reconfigure applications to 866 use the new device names. 867 868 When using the serial port as a boot console, be sure to update 869 /boot/device.hints and /etc/ttys before booting the new kernel. 870 If you forget to do so, you can still manually specify the hints 871 at the loader prompt: 872 873 set hint.uart.0.at="isa" 874 set hint.uart.0.port="0x3F8" 875 set hint.uart.0.flags="0x10" 876 set hint.uart.0.irq="4" 877 boot -s 878 87920080609: 880 The gpt(8) utility has been removed. Use gpart(8) to partition 881 disks instead. 882 88320080603: 884 The version that Linuxulator emulates was changed from 2.4.2 885 to 2.6.16. If you experience any problems with Linux binaries 886 please try to set sysctl compat.linux.osrelease to 2.4.2 and 887 if it fixes the problem contact emulation mailing list. 888 88920080525: 890 ISDN4BSD (I4B) was removed from the src tree. You may need to 891 update a your kernel configuration and remove relevant entries. 892 89320080509: 894 I have checked in code to support multiple routing tables. 895 See the man pages setfib(1) and setfib(2). 896 This is a hopefully backwards compatible version, 897 but to make use of it you need to compile your kernel 898 with options ROUTETABLES=2 (or more up to 16). 899 90020080420: 901 The 802.11 wireless support was redone to enable multi-bss 902 operation on devices that are capable. The underlying device 903 is no longer used directly but instead wlanX devices are 904 cloned with ifconfig. This requires changes to rc.conf files. 905 For example, change: 906 ifconfig_ath0="WPA DHCP" 907 to 908 wlans_ath0=wlan0 909 ifconfig_wlan0="WPA DHCP" 910 see rc.conf(5) for more details. In addition, mergemaster of 911 /etc/rc.d is highly recommended. Simultaneous update of userland 912 and kernel wouldn't hurt either. 913 914 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 915 modules were merged into the base wlan module. All references 916 to these modules (e.g. in kernel config files) must be removed. 917 91820080408: 919 psm(4) has gained write(2) support in native operation level. 920 Arbitrary commands can be written to /dev/psm%d and status can 921 be read back from it. Therefore, an application is responsible 922 for status validation and error recovery. It is a no-op in 923 other operation levels. 924 92520080312: 926 Support for KSE threading has been removed from the kernel. To 927 run legacy applications linked against KSE libmap.conf may 928 be used. The following libmap.conf may be used to ensure 929 compatibility with any prior release: 930 931 libpthread.so.1 libthr.so.1 932 libpthread.so.2 libthr.so.2 933 libkse.so.3 libthr.so.3 934 93520080301: 936 The layout of struct vmspace has changed. This affects libkvm 937 and any executables that link against libkvm and use the 938 kvm_getprocs() function. In particular, but not exclusively, 939 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 940 The effects are minimal, but it's advisable to upgrade world 941 nonetheless. 942 94320080229: 944 The latest em driver no longer has support in it for the 945 82575 adapter, this is now moved to the igb driver. The 946 split was done to make new features that are incompatible 947 with older hardware easier to do. 948 94920080220: 950 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 951 likewise the kernel option is now GEOM_LINUX_LVM. 952 95320080211: 954 The default NFS mount mode has changed from UDP to TCP for 955 increased reliability. If you rely on (insecurely) NFS 956 mounting across a firewall you may need to update your 957 firewall rules. 958 95920080208: 960 Belatedly note the addition of m_collapse for compacting 961 mbuf chains. 962 96320080126: 964 The fts(3) structures have been changed to use adequate 965 integer types for their members and so to be able to cope 966 with huge file trees. The old fts(3) ABI is preserved 967 through symbol versioning in libc, so third-party binaries 968 using fts(3) should still work, although they will not take 969 advantage of the extended types. At the same time, some 970 third-party software might fail to build after this change 971 due to unportable assumptions made in its source code about 972 fts(3) structure members. Such software should be fixed 973 by its vendor or, in the worst case, in the ports tree. 974 FreeBSD_version 800015 marks this change for the unlikely 975 case that a portable fix is impossible. 976 97720080123: 978 To upgrade to -current after this date, you must be running 979 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 980 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 981 98220071128: 983 The ADAPTIVE_GIANT kernel option has been retired because its 984 functionality is the default now. 985 98620071118: 987 The AT keyboard emulation of sunkbd(4) has been turned on 988 by default. In order to make the special symbols of the Sun 989 keyboards driven by sunkbd(4) work under X these now have 990 to be configured the same way as Sun USB keyboards driven 991 by ukbd(4) (which also does AT keyboard emulation), f.e.: 992 993 Option "XkbLayout" "us" 994 Option "XkbRules" "xorg" 995 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 996 99720071024: 998 It has been decided that it is desirable to provide ABI 999 backwards compatibility to the FreeBSD 4/5/6 versions of the 1000 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1001 broken with the introduction of PCI domain support (see the 1002 20070930 entry). Unfortunately, this required the ABI of 1003 PCIOCGETCONF to be broken again in order to be able to 1004 provide backwards compatibility to the old version of that 1005 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1006 again. As for prominent ports this affects neither pciutils 1007 nor xorg-server this time, the hal port needs to be rebuilt 1008 however. 1009 101020071020: 1011 The misnamed kthread_create() and friends have been renamed 1012 to kproc_create() etc. Many of the callers already 1013 used kproc_start().. 1014 I will return kthread_create() and friends in a while 1015 with implementations that actually create threads, not procs. 1016 Renaming corresponds with version 800002. 1017 101820071010: 1019 RELENG_7 branched. 1020 1021COMMON ITEMS: 1022 1023 General Notes 1024 ------------- 1025 Avoid using make -j when upgrading. While generally safe, there are 1026 sometimes problems using -j to upgrade. If your upgrade fails with 1027 -j, please try again without -j. From time to time in the past there 1028 have been problems using -j with buildworld and/or installworld. This 1029 is especially true when upgrading between "distant" versions (eg one 1030 that cross a major release boundary or several minor releases, or when 1031 several months have passed on the -current branch). 1032 1033 Sometimes, obscure build problems are the result of environment 1034 poisoning. This can happen because the make utility reads its 1035 environment when searching for values for global variables. To run 1036 your build attempts in an "environmental clean room", prefix all make 1037 commands with 'env -i '. See the env(1) manual page for more details. 1038 1039 When upgrading from one major version to another it is generally best 1040 to upgrade to the latest code in the currently installed branch first, 1041 then do an upgrade to the new branch. This is the best-tested upgrade 1042 path, and has the highest probability of being successful. Please try 1043 this approach before reporting problems with a major version upgrade. 1044 1045 ZFS notes 1046 --------- 1047 When upgrading the boot ZFS pool to a new version, always follow 1048 these two steps: 1049 1050 1.) recompile and reinstall the ZFS boot loader and boot block 1051 (this is part of "make buildworld" and "make installworld") 1052 1053 2.) update the ZFS boot block on your boot drive 1054 1055 The following example updates the ZFS boot block on the first 1056 partition (freebsd-boot) of a GPT partitioned drive ad0: 1057 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1058 1059 Non-boot pools do not need these updates. 1060 1061 To build a kernel 1062 ----------------- 1063 If you are updating from a prior version of FreeBSD (even one just 1064 a few days old), you should follow this procedure. It is the most 1065 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1066 1067 make kernel-toolchain 1068 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1069 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1070 1071 To test a kernel once 1072 --------------------- 1073 If you just want to boot a kernel once (because you are not sure 1074 if it works, or if you want to boot a known bad kernel to provide 1075 debugging information) run 1076 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1077 nextboot -k testkernel 1078 1079 To just build a kernel when you know that it won't mess you up 1080 -------------------------------------------------------------- 1081 This assumes you are already running a CURRENT system. Replace 1082 ${arch} with the architecture of your machine (e.g. "i386", 1083 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1084 1085 cd src/sys/${arch}/conf 1086 config KERNEL_NAME_HERE 1087 cd ../compile/KERNEL_NAME_HERE 1088 make depend 1089 make 1090 make install 1091 1092 If this fails, go to the "To build a kernel" section. 1093 1094 To rebuild everything and install it on the current system. 1095 ----------------------------------------------------------- 1096 # Note: sometimes if you are running current you gotta do more than 1097 # is listed here if you are upgrading from a really old current. 1098 1099 <make sure you have good level 0 dumps> 1100 make buildworld 1101 make kernel KERNCONF=YOUR_KERNEL_HERE 1102 [1] 1103 <reboot in single user> [3] 1104 mergemaster -p [5] 1105 make installworld 1106 make delete-old 1107 mergemaster -i [4] 1108 <reboot> 1109 1110 1111 To cross-install current onto a separate partition 1112 -------------------------------------------------- 1113 # In this approach we use a separate partition to hold 1114 # current's root, 'usr', and 'var' directories. A partition 1115 # holding "/", "/usr" and "/var" should be about 2GB in 1116 # size. 1117 1118 <make sure you have good level 0 dumps> 1119 <boot into -stable> 1120 make buildworld 1121 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1122 <maybe newfs current's root partition> 1123 <mount current's root partition on directory ${CURRENT_ROOT}> 1124 make installworld DESTDIR=${CURRENT_ROOT} 1125 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1126 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1127 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1128 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1129 <reboot into current> 1130 <do a "native" rebuild/install as described in the previous section> 1131 <maybe install compatibility libraries from ports/misc/compat*> 1132 <reboot> 1133 1134 1135 To upgrade in-place from 8.x-stable to current 1136 ---------------------------------------------- 1137 <make sure you have good level 0 dumps> 1138 make buildworld [9] 1139 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1140 [1] 1141 <reboot in single user> [3] 1142 mergemaster -p [5] 1143 make installworld 1144 make delete-old 1145 mergemaster -i [4] 1146 <reboot> 1147 1148 Make sure that you've read the UPDATING file to understand the 1149 tweaks to various things you need. At this point in the life 1150 cycle of current, things change often and you are on your own 1151 to cope. The defaults can also change, so please read ALL of 1152 the UPDATING entries. 1153 1154 Also, if you are tracking -current, you must be subscribed to 1155 freebsd-current@freebsd.org. Make sure that before you update 1156 your sources that you have read and understood all the recent 1157 messages there. If in doubt, please track -stable which has 1158 much fewer pitfalls. 1159 1160 [1] If you have third party modules, such as vmware, you 1161 should disable them at this point so they don't crash your 1162 system on reboot. 1163 1164 [3] From the bootblocks, boot -s, and then do 1165 fsck -p 1166 mount -u / 1167 mount -a 1168 cd src 1169 adjkerntz -i # if CMOS is wall time 1170 Also, when doing a major release upgrade, it is required that 1171 you boot into single user mode to do the installworld. 1172 1173 [4] Note: This step is non-optional. Failure to do this step 1174 can result in a significant reduction in the functionality of the 1175 system. Attempting to do it by hand is not recommended and those 1176 that pursue this avenue should read this file carefully, as well 1177 as the archives of freebsd-current and freebsd-hackers mailing lists 1178 for potential gotchas. The -U option is also useful to consider. 1179 See mergemaster(8) for more information. 1180 1181 [5] Usually this step is a noop. However, from time to time 1182 you may need to do this if you get unknown user in the following 1183 step. It never hurts to do it all the time. You may need to 1184 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1185 install) after the buildworld before this step if you last updated 1186 from current before 20020224 or from -stable before 20020408. 1187 1188 [8] In order to have a kernel that can run the 4.x binaries needed to 1189 do an installworld, you must include the COMPAT_FREEBSD4 option in 1190 your kernel. Failure to do so may leave you with a system that is 1191 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1192 required to run the 5.x binaries on more recent kernels. And so on 1193 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1194 1195 Make sure that you merge any new devices from GENERIC since the 1196 last time you updated your kernel config file. 1197 1198 [9] When checking out sources, you must include the -P flag to have 1199 cvs prune empty directories. 1200 1201 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1202 "?=" instead of the "=" assignment operator, so that buildworld can 1203 override the CPUTYPE if it needs to. 1204 1205 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1206 not on the command line, or in /etc/make.conf. buildworld will 1207 warn if it is improperly defined. 1208FORMAT: 1209 1210This file contains a list, in reverse chronological order, of major 1211breakages in tracking -current. Not all things will be listed here, 1212and it only starts on October 16, 2004. Updating files can found in 1213previous releases if your system is older than this. 1214 1215Copyright information: 1216 1217Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1218 1219Redistribution, publication, translation and use, with or without 1220modification, in full or in part, in any form or format of this 1221document are permitted without further permission from the author. 1222 1223THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1224IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1225WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1226DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1227INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1228(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1229SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1230HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1231STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1232IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1233POSSIBILITY OF SUCH DAMAGE. 1234 1235Contact Warner Losh if you have any questions about your use of 1236this document. 1237 1238$FreeBSD$ 1239