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 10.x IS SLOW: 13 FreeBSD 10.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 2520111108: 26 The option VFS_ALLOW_NONMPSAFE option has been added in order to 27 explicitely support non-MPSAFE filesystems. 28 It is on by default for all supported platform at this present 29 time. 30 3120111101: 32 The broken amd(4) driver has been replaced with esp(4) in the amd64, 33 i386 and pc98 GENERIC kernel configuration files. 34 3520110930: 36 sysinstall has been removed 37 3820110923: 39 The stable/9 branch created in subversion. This corresponds to the 40 RELENG_9 branch in CVS. 41 4220110913: 43 This commit modifies vfs_register() so that it uses a hash 44 calculation to set vfc_typenum, which is enabled by default. 45 The first time a system is booted after this change, the 46 vfc_typenum values will change for all file systems. The 47 main effect of this is a change to the NFS server file handles 48 for file systems that use vfc_typenum in their fsid, such as ZFS. 49 It will, however, prevent vfc_typenum from changing when file 50 systems are loaded in a different order for subsequent reboots. 51 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 52 until you are ready to remount all NFS clients after a reboot. 53 5420110828: 55 Bump the shared library version numbers for libraries that 56 do not use symbol versioning, have changed the ABI compared 57 to stable/8 and which shared library version was not bumped. 58 Done as part of 9.0-RELEASE cycle. 59 6020110815: 61 During the merge of Capsicum features, the fget(9) KPI was modified. 62 This may require the rebuilding of out-of-tree device drivers -- 63 issues have been reported specifically with the nVidia device driver. 64 __FreeBSD_version is bumped to 900041. 65 66 Also, there is a period between 20110811 and 20110814 where the 67 special devices /dev/{stdin,stdout,stderr} did not work correctly. 68 Building world from a kernel during that window may not work. 69 7020110628: 71 The packet filter (pf) code has been updated to OpenBSD 4.5. 72 You need to update userland tools to be in sync with kernel. 73 This update breaks backward compatibility with earlier pfsync(4) 74 versions. Care must be taken when updating redundant firewall setups. 75 7620110608: 77 The following sysctls and tunables are retired on x86 platforms: 78 machdep.hlt_cpus 79 machdep.hlt_logical_cpus 80 The following sysctl is retired: 81 machdep.hyperthreading_allowed 82 The sysctls were supposed to provide a way to dynamically offline and 83 online selected CPUs on x86 platforms, but the implementation has not 84 been reliable especially with SCHED_ULE scheduler. 85 machdep.hyperthreading_allowed tunable is still available to ignore 86 hyperthreading CPUs at OS level. 87 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 88 where X is an APIC ID of a CPU. Be advised, though, that disabling 89 CPUs in non-uniform fashion will result in non-uniform topology and 90 may lead to sub-optimal system performance with SCHED_ULE, which is 91 a default scheduler. 92 9320110607: 94 cpumask_t type is retired and cpuset_t is used in order to describe 95 a mask of CPUs. 96 9720110531: 98 Changes to ifconfig(8) for dynamic address family detection mandate 99 that you are running a kernel of 20110525 or later. Make sure to 100 follow the update procedure to boot a new kernel before installing 101 world. 102 10320110513: 104 Support for sun4v architecture is officially dropped 105 10620110503: 107 Several KPI breaking changes have been committed to the mii(4) layer, 108 the PHY drivers and consequently some Ethernet drivers using mii(4). 109 This means that miibus.ko and the modules of the affected Ethernet 110 drivers need to be recompiled. 111 112 Note to kernel developers: Given that the OUI bit reversion problem 113 was fixed as part of these changes all mii(4) commits related to OUIs, 114 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 115 handling, no longer can be merged verbatim to stable/8 and previous 116 branches. 117 11820110430: 119 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 120 into their kernel configurations along with 'device pci'. 121 12220110427: 123 The default NFS client is now the new NFS client, so fstype "newnfs" 124 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 125 Although mounts via fstype "nfs" will usually work without userland 126 changes, it is recommended that the mount(8) and mount_nfs(8) 127 commands be rebuilt from sources and that a link to mount_nfs called 128 mount_oldnfs be created. The new client is compiled into the 129 kernel with "options NFSCL" and this is needed for diskless root 130 file systems. The GENERIC kernel configs have been changed to use 131 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 132 To use the regular/old client, you can "mount -t oldnfs ...". For 133 a diskless root file system, you must also include a line like: 134 135 vfs.root.mountfrom="oldnfs:" 136 137 in the boot/loader.conf on the root fs on the NFS server to make 138 a diskless root fs use the old client. 139 14020110424: 141 The GENERIC kernels for all architectures now default to the new 142 CAM-based ATA stack. It means that all legacy ATA drivers were 143 removed and replaced by respective CAM drivers. If you are using 144 ATA device names in /etc/fstab or other places, make sure to update 145 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 146 where 'Y's are the sequential numbers starting from zero for each type 147 in order of detection, unless configured otherwise with tunables, 148 see cam(4)). There will be symbolic links created in /dev/ to map 149 old adX devices to the respective adaY. They should provide basic 150 compatibility for file systems mounting in most cases, but they do 151 not support old user-level APIs and do not have respective providers 152 in GEOM. Consider using updated management tools with new device names. 153 154 It is possible to load devices ahci, ata, siis and mvs as modules, 155 but option ATA_CAM should remain in kernel configuration to make ata 156 module work as CAM driver supporting legacy ATA controllers. Device ata 157 still can be used in modular fashion (atacore + ...). Modules atadisk 158 and atapi* are not used and won't affect operation in ATA_CAM mode. 159 Note that to use CAM-based ATA kernel should include CAM devices 160 scbus, pass, da (or explicitly ada), cd and optionally others. All of 161 them are parts of the cam module. 162 163 ataraid(4) functionality is now supported by the RAID GEOM class. 164 To use it you can load geom_raid kernel module and use graid(8) tool 165 for management. Instead of /dev/arX device names, use /dev/raid/rX. 166 167 No kernel config options or code have been removed, so if a problem 168 arises, please report it and optionally revert to the old ATA stack. 169 In order to do it you can remove from the kernel config: 170 options ATA_CAM 171 device ahci 172 device mvs 173 device siis 174 , and instead add back: 175 device atadisk # ATA disk drives 176 device ataraid # ATA RAID drives 177 device atapicd # ATAPI CDROM drives 178 device atapifd # ATAPI floppy drives 179 device atapist # ATAPI tape drives 180 18120110423: 182 The default NFS server has been changed to the new server, which 183 was referred to as the experimental server. If you need to switch 184 back to the old NFS server, you must now put the "-o" option on 185 both the mountd and nfsd commands. This can be done using the 186 mountd_flags and nfs_server_flags rc.conf variables until an 187 update to the rc scripts is committed, which is coming soon. 188 18920110418: 190 The GNU Objective-C runtime library (libobjc), and other Objective-C 191 related components have been removed from the base system. If you 192 require an Objective-C library, please use one of the available ports. 193 19420110331: 195 ath(4) has been split into bus- and device- modules. if_ath contains 196 the HAL, the TX rate control and the network device code. if_ath_pci 197 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 198 contains the AHB glue. Users need to load both if_ath_pci and if_ath 199 in order to use ath on everything else. 200 201 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 202 need to load if_ath and if_ath_pci for ath(4) operation. 203 20420110314: 205 As part of the replacement of sysinstall, the process of building 206 release media has changed significantly. For details, please re-read 207 release(7), which has been updated to reflect the new build process. 208 20920110218: 210 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 211 is the last available version under GPLv2. It brings a number of new 212 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 213 4.1 and SSE 4.2), better support for powerpc64, a number of new 214 directives, and lots of other small improvements. See the ChangeLog 215 file in contrib/binutils for the full details. 216 21720110218: 218 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 219 compliant, and will now use half of hash for authentication. 220 This will break interoperability with all stacks (including all 221 actual FreeBSD versions) who implement 222 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 223 authentication). 224 The only workaround with such peers is to use another HMAC 225 algorithm for IPsec ("phase 2") authentication. 226 22720110207: 228 Remove the uio_yield prototype and symbol. This function has 229 been misnamed since it was introduced and should not be 230 globally exposed with this name. The equivalent functionality 231 is now available using kern_yield(curthread->td_user_pri). 232 The function remains undocumented. 233 23420110112: 235 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 236 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 237 for scalar sysctls is defined but disabled. Code that needs 238 UQUAD to pass the type checking that must compile on older 239 systems where the define is not present can check against 240 __FreeBSD_version >= 900030. 241 242 The system dialog(1) has been replaced with a new version previously 243 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 244 with the previous version, but the libdialog associated with it has 245 a largely incompatible API. As such, the original version of libdialog 246 will be kept temporarily as libodialog, until its base system consumers 247 are replaced or updated. Bump __FreeBSD_version to 900030. 248 24920110103: 250 If you are trying to run make universe on a -stable system, and you get 251 the following warning: 252 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 253 unknown. config(8) likely too old." 254 or something similar to it, then you must upgrade your -stable system 255 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 256 stable/8) or build the config from the latest stable/8 branch and 257 install it on your system. 258 259 Prior to this date, building a current universe on 8-stable system from 260 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 261 error in the first kernel build phase. A new config on those old 262 systems will fix that problem for older versions of -current. 263 26420101228: 265 The TCP stack has been modified to allow Khelp modules to interact with 266 it via helper hook points and store per-connection data in the TCP 267 control block. Bump __FreeBSD_version to 900029. User space tools that 268 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 269 be recompiled. 270 27120101114: 272 Generic IEEE 802.3 annex 31B full duplex flow control support has been 273 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 274 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 275 to take advantage of it instead of using custom implementations. This 276 means that these drivers now no longer unconditionally advertise 277 support for flow control but only do so if flow control is a selected 278 media option. This was implemented in the generic support that way in 279 order to allow flow control to be switched on and off via ifconfig(8) 280 with the PHY specific default to typically off in order to protect 281 from unwanted effects. Consequently, if you used flow control with 282 one of the above mentioned drivers you now need to explicitly enable 283 it, for example via: 284 ifconfig bge0 media auto mediaopt flowcontrol 285 286 Along with the above mentioned changes generic support for setting 287 1000baseT master mode also has been added and brgphy(4), ciphy(4), 288 e1000phy(4) as well as ip1000phy(4) have been converted to take 289 advantage of it. This means that these drivers now no longer take the 290 link0 parameter for selecting master mode but the master media option 291 has to be used instead, for example like in the following: 292 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 293 294 Selection of master mode now is also available with all other PHY 295 drivers supporting 1000baseT. 296 29720101111: 298 The TCP stack has received a significant update to add support for 299 modularised congestion control and generally improve the clarity of 300 congestion control decisions. Bump __FreeBSD_version to 900025. User 301 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 302 sockstat) need to be recompiled. 303 30420101002: 305 The man(1) utility has been replaced by a new version that no longer 306 uses /etc/manpath.config. Please consult man.conf(5) for how to 307 migrate local entries to the new format. 308 30920100928: 310 The copyright strings printed by login(1) and sshd(8) at the time of a 311 new connection have been removed to follow other operating systems and 312 upstream sshd. 313 31420100915: 315 A workaround for a fixed ld bug has been removed in kernel code, 316 so make sure that your system ld is built from sources after 317 revision 210245 from 2010-07-19 (r211583 if building head kernel 318 on stable/8, r211584 for stable/7; both from 2010-08-21). 319 A symptom of incorrect ld version is different addresses for 320 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 321 32220100913: 323 The $ipv6_prefer variable in rc.conf(5) has been split into 324 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 325 326 The $ip6addrctl_policy is a variable to choose a pre-defined 327 address selection policy set by ip6addrctl(8). A value 328 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 329 default is "AUTO". 330 331 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 332 flag (see an entry of 20090926) is set on an interface with no 333 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 334 security reason. If you want IPv6 link-local address on all 335 interfaces by default, set this to "YES". 336 337 The old ipv6_prefer="YES" is equivalent to 338 ipv6_activate_all_interfaces="YES" and 339 ip6addrctl_policy="ipv6_prefer". 340 34120100913: 342 DTrace has grown support for userland tracing. Due to this, DTrace is 343 now i386 and amd64 only. 344 dtruss(1) is now installed by default on those systems and a new 345 kernel module is needed for userland tracing: fasttrap. 346 No changes to your kernel config file are necessary to enable 347 userland tracing, but you might consider adding 'STRIP=' and 348 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 349 to have informative userland stack traces in DTrace (ustack). 350 35120100725: 352 The acpi_aiboost(4) driver has been removed in favor of the new 353 aibs(4) driver. You should update your kernel configuration file. 354 35520100722: 356 BSD grep has been imported to the base system and it is built by 357 default. It is completely BSD licensed, highly GNU-compatible, uses 358 less memory than its GNU counterpart and has a small codebase. 359 However, it is slower than its GNU counterpart, which is mostly 360 noticeable for larger searches, for smaller ones it is measurable 361 but not significant. The reason is complex, the most important factor 362 is that we lack a modern and efficient regex library and GNU 363 overcomes this by optimizing the searches internally. Future work 364 on improving the regex performance is planned, for the meantime, 365 users that need better performance, can build GNU grep instead by 366 setting the WITH_GNU_GREP knob. 367 36820100713: 369 Due to the import of powerpc64 support, all existing powerpc kernel 370 configuration files must be updated with a machine directive like this: 371 machine powerpc powerpc 372 373 In addition, an updated config(8) is required to build powerpc kernels 374 after this change. 375 37620100713: 377 A new version of ZFS (version 15) has been merged to -HEAD. 378 This version uses a python library for the following subcommands: 379 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 380 For full functionality of these commands the following port must 381 be installed: sysutils/py-zfs 382 38320100429: 384 'vm_page's are now hashed by physical address to an array of mutexes. 385 Currently this is only used to serialize access to hold_count. Over 386 time the page queue mutex will be peeled away. This changes the size 387 of pmap on every architecture. And requires all callers of vm_page_hold 388 and vm_page_unhold to be updated. 389 39020100402: 391 WITH_CTF can now be specified in src.conf (not recommended, there 392 are some problems with static executables), make.conf (would also 393 affect ports which do not use GNU make and do not override the 394 compile targets) or in the kernel config (via "makeoptions 395 WITH_CTF=yes"). 396 When WITH_CTF was specified there before this was silently ignored, 397 so make sure that WITH_CTF is not used in places which could lead 398 to unwanted behavior. 399 40020100311: 401 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 402 to allow 32-bit compatibility on non-x86 platforms. All kernel 403 configurations on amd64 and ia64 platforms using these options must 404 be modified accordingly. 405 40620100113: 407 The utmp user accounting database has been replaced with utmpx, 408 the user accounting interface standardized by POSIX. 409 Unfortunately the semantics of utmp and utmpx don't match, 410 making it practically impossible to support both interfaces. 411 The user accounting database is used by tools like finger(1), 412 last(1), talk(1), w(1) and ac(8). 413 414 All applications in the base system use utmpx. This means only 415 local binaries (e.g. from the ports tree) may still use these 416 utmp database files. These applications must be rebuilt to make 417 use of utmpx. 418 419 After the system has been upgraded, it is safe to remove the old 420 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 421 assuming their contents is of no importance anymore. Old wtmp 422 databases can only be used by last(1) and ac(8) after they have 423 been converted to the new format using wtmpcvt(1). 424 42520100108: 426 Introduce the kernel thread "deadlock resolver" (which can be enabled 427 via the DEADLKRES option, see NOTES for more details) and the 428 sleepq_type() function for sleepqueues. 429 43020091202: 431 The rc.firewall and rc.firewall6 were unified, and 432 rc.firewall6 and rc.d/ip6fw were removed. 433 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 434 variables are obsoleted. Instead, the following new rc 435 variables are added to rc.d/ipfw: 436 437 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 438 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 439 firewall_simple_onet_ipv6, firewall_trusted_ipv6 440 441 The meanings correspond to the relevant IPv4 variables. 442 44320091125: 444 8.0-RELEASE. 445 44620091113: 447 The default terminal emulation for syscons(4) has been changed 448 from cons25 to xterm on all platforms except pc98. This means 449 that the /etc/ttys file needs to be updated to ensure correct 450 operation of applications on the console. 451 452 The terminal emulation style can be toggled per window by using 453 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 454 options can be used to change the compile-time default back to 455 cons25. 456 457 To prevent graphical artifacts, make sure the TERM environment 458 variable is set to match the terminal emulation that is being 459 performed by syscons(4). 460 46120091109: 462 The layout of the structure ieee80211req_scan_result has changed. 463 Applications that require wireless scan results (e.g. ifconfig(8)) 464 from net80211 need to be recompiled. 465 466 Applications such as wpa_supplicant(8) may require a full world 467 build without using NO_CLEAN in order to get synchronized with the 468 new structure. 469 47020091025: 471 The iwn(4) driver has been updated to support the 5000 and 5150 series. 472 There's one kernel module for each firmware. Adding "device iwnfw" 473 to the kernel configuration file means including all three firmware 474 images inside the kernel. If you want to include just the one for 475 your wireless card, use the devices iwn4965fw, iwn5000fw or 476 iwn5150fw. 477 47820090926: 479 The rc.d/network_ipv6, IPv6 configuration script has been integrated 480 into rc.d/netif. The changes are the following: 481 482 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 483 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 484 Note that both variables need the "inet6" keyword at the head. 485 486 Do not set $ipv6_network_interfaces manually if you do not 487 understand what you are doing. It is not needed in most cases. 488 489 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 490 they are obsolete. 491 492 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 493 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 494 495 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 496 all configured interfaces have "inet6 accept_rtadv" in the 497 $ifconfig_IF_ipv6. These are for backward compatibility. 498 499 3. A new variable $ipv6_prefer has been added. If NO, IPv6 500 functionality of interfaces with no corresponding 501 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 502 and the default address selection policy of ip6addrctl(8) 503 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 504 Note that if you want to configure IPv6 functionality on the 505 disabled interfaces after boot, first you need to clear the flag by 506 using ifconfig(8) like: 507 508 ifconfig em0 inet6 -ifdisabled 509 510 If YES, the default address selection policy is set as 511 IPv6-preferred. 512 513 The default value of $ipv6_prefer is NO. 514 515 4. If your system need to receive Router Advertisement messages, 516 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 517 scripts automatically invoke rtsol(8) when the interface becomes 518 UP. The Router Advertisement messages are used for SLAAC 519 (State-Less Address AutoConfiguration). 520 52120090922: 522 802.11s D3.03 support was committed. This is incompatible with the 523 previous code, which was based on D3.0. 524 52520090912: 526 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 527 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 528 control whether accepting Router Advertisement messages or not. 529 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 530 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 531 The ifconfig(8) utility now supports these flags. 532 53320090910: 534 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 535 mount(8) and -a option for df(1) to see them. 536 53720090825: 538 The old tunable hw.bus.devctl_disable has been superseded by 539 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 540 replaced by hw.bus.devctl_queue=0. The default for this new tunable 541 is 1000. 542 54320090813: 544 Remove the option STOP_NMI. The default action is now to use NMI only 545 for KDB via the newly introduced function stop_cpus_hard() and 546 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 547 54820090803: 549 The stable/8 branch created in subversion. This corresponds to the 550 RELENG_8 branch in CVS. 551 55220090719: 553 Bump the shared library version numbers for all libraries that do not 554 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 555 __FreeBSD_version to 800105. 556 55720090714: 558 Due to changes in the implementation of virtual network stack support, 559 all network-related kernel modules must be recompiled. As this change 560 breaks the ABI, bump __FreeBSD_version to 800104. 561 56220090713: 563 The TOE interface to the TCP syncache has been modified to remove 564 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 565 The cxgb driver is the only TOE consumer affected by this change, and 566 needs to be recompiled along with the kernel. As this change breaks 567 the ABI, bump __FreeBSD_version to 800103. 568 56920090712: 570 Padding has been added to struct tcpcb, sackhint and tcpstat in 571 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 572 maintaining the ABI. However, this change breaks the ABI, so bump 573 __FreeBSD_version to 800102. User space tools that rely on the size of 574 any of these structs (e.g. sockstat) need to be recompiled. 575 57620090630: 577 The NFS_LEGACYRPC option has been removed along with the old kernel 578 RPC implementation that this option selected. Kernel configurations 579 may need to be adjusted. 580 58120090629: 582 The network interface device nodes at /dev/net/<interface> have been 583 removed. All ioctl operations can be performed the normal way using 584 routing sockets. The kqueue functionality can generally be replaced 585 with routing sockets. 586 58720090628: 588 The documentation from the FreeBSD Documentation Project (Handbook, 589 FAQ, etc.) is now installed via packages by sysinstall(8) and under 590 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 591 59220090624: 593 The ABI of various structures related to the SYSV IPC API have been 594 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 595 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 596 800100. 597 59820090622: 599 Layout of struct vnet has changed as routing related variables were 600 moved to their own Vimage module. Modules need to be recompiled. Bump 601 __FreeBSD_version to 800099. 602 60320090619: 604 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 605 respectively. As long as no more than 16 groups per process are used, 606 no changes should be visible. When more than 16 groups are used, old 607 binaries may fail if they call getgroups() or getgrouplist() with 608 statically sized storage. Recompiling will work around this, but 609 applications should be modified to use dynamically allocated storage 610 for group arrays as POSIX.1-2008 does not cap an implementation's 611 number of supported groups at NGROUPS_MAX+1 as previous versions did. 612 613 NFS and portalfs mounts may also be affected as the list of groups is 614 truncated to 16. Users of NFS who use more than 16 groups, should 615 take care that negative group permissions are not used on the exported 616 file systems as they will not be reliable unless a GSSAPI based 617 authentication method is used. 618 61920090616: 620 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 621 option compiles in the support for adaptive spinning for lockmgrs 622 which want to enable it. The lockinit() function now accepts the flag 623 LK_ADAPTIVE in order to make the lock object subject to adaptive 624 spinning when both held in write and read mode. 625 62620090613: 627 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 628 changed. User applications that use this ioctl need to be rebuilt. 629 63020090611: 631 The layout of struct thread has changed. Kernel and modules need to 632 be rebuilt. 633 63420090608: 635 The layout of structs ifnet, domain, protosw and vnet_net has changed. 636 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 637 63820090602: 639 window(1) has been removed from the base system. It can now be 640 installed from ports. The port is called misc/window. 641 64220090601: 643 The way we are storing and accessing `routing table' entries has 644 changed. Programs reading the FIB, like netstat, need to be 645 re-compiled. 646 64720090601: 648 A new netisr implementation has been added for FreeBSD 8. Network 649 file system modules, such as igmp, ipdivert, and others, should be 650 rebuilt. 651 Bump __FreeBSD_version to 800096. 652 65320090530: 654 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 655 more valid. 656 65720090530: 658 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 659 Bump __FreeBSD_version to 800094. 660 66120090529: 662 Add mnt_xflag field to 'struct mount'. File system modules need to be 663 rebuilt. 664 Bump __FreeBSD_version to 800093. 665 66620090528: 667 The compiling option ADAPTIVE_SX has been retired while it has been 668 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 669 The KPI for sx_init_flags() changes as accepting flags: 670 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 671 been introduced in order to handle the reversed logic. 672 Bump __FreeBSD_version to 800092. 673 67420090527: 675 Add support for hierarchical jails. Remove global securelevel. 676 Bump __FreeBSD_version to 800091. 677 67820090523: 679 The layout of struct vnet_net has changed, therefore modules 680 need to be rebuilt. 681 Bump __FreeBSD_version to 800090. 682 68320090523: 684 The newly imported zic(8) produces a new format in the output. Please 685 run tzsetup(8) to install the newly created data to /etc/localtime. 686 68720090520: 688 The sysctl tree for the usb stack has renamed from hw.usb2.* to 689 hw.usb.* and is now consistent again with previous releases. 690 69120090520: 692 802.11 monitor mode support was revised and driver api's were changed. 693 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 694 of DLT_IEEE802_11. No user-visible data structures were changed but 695 applications that use DLT_IEEE802_11 may require changes. 696 Bump __FreeBSD_version to 800088. 697 69820090430: 699 The layout of the following structs has changed: sysctl_oid, 700 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 701 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 702 panics may be experienced. World rebuild is required for 703 correctly checking networking state from userland. 704 Bump __FreeBSD_version to 800085. 705 70620090429: 707 MLDv2 and Source-Specific Multicast (SSM) have been merged 708 to the IPv6 stack. VIMAGE hooks are in but not yet used. 709 The implementation of SSM within FreeBSD's IPv6 stack closely 710 follows the IPv4 implementation. 711 712 For kernel developers: 713 714 * The most important changes are that the ip6_output() and 715 ip6_input() paths no longer take the IN6_MULTI_LOCK, 716 and this lock has been downgraded to a non-recursive mutex. 717 718 * As with the changes to the IPv4 stack to support SSM, filtering 719 of inbound multicast traffic must now be performed by transport 720 protocols within the IPv6 stack. This does not apply to TCP and 721 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 722 723 * The KPIs used by IPv6 multicast are similar to those used by 724 the IPv4 stack, with the following differences: 725 * im6o_mc_filter() is analogous to imo_multicast_filter(). 726 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 727 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 728 * IN6_LOOKUP_MULTI() has been deprecated and removed. 729 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 730 for MLDv1 have an additional 'timer' argument which is used to 731 jitter the initial membership report for the solicited-node 732 multicast membership on-link. 733 * This is not strictly needed for MLDv2, which already jitters 734 its report transmissions. However, the 'timer' argument is 735 preserved in case MLDv1 is active on the interface. 736 737 * The KAME linked-list based IPv6 membership implementation has 738 been refactored to use a vector similar to that used by the IPv4 739 stack. 740 Code which maintains a list of its own multicast memberships 741 internally, e.g. carp, has been updated to reflect the new 742 semantics. 743 744 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 745 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 746 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 747 implementation constraint which needs to be addressed in HEAD. 748 749 For application developers: 750 751 * The changes are broadly similar to those made for the IPv4 752 stack. 753 754 * The use of IPv4 and IPv6 multicast socket options on the same 755 socket, using mapped addresses, HAS NOT been tested or supported. 756 757 * There are a number of issues with the implementation of various 758 IPv6 multicast APIs which need to be resolved in the API surface 759 before the implementation is fully compatible with KAME userland 760 use, and these are mostly to do with interface index treatment. 761 762 * The literature available discusses the use of either the delta / ASM 763 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 764 using setsourcefilter(3)/getsourcefilter(3). For more information 765 please refer to RFC 3768, 'Socket Interface Extensions for 766 Multicast Source Filters'. 767 768 * Applications which use the published RFC 3678 APIs should be fine. 769 770 For systems administrators: 771 772 * The mtest(8) utility has been refactored to support IPv6, in 773 addition to IPv4. Interface addresses are no longer accepted 774 as arguments, their names must be used instead. The utility 775 will map the interface name to its first IPv4 address as 776 returned by getifaddrs(3). 777 778 * The ifmcstat(8) utility has also been updated to print the MLDv2 779 endpoint state and source filter lists via sysctl(3). 780 781 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 782 loopback of IPv6 multicast datagrams by default; it defaults to 1 783 to preserve the existing behaviour. Disabling multicast loopback is 784 recommended for optimal system performance. 785 786 * The IPv6 MROUTING code has been changed to examine this sysctl 787 instead of attempting to perform a group lookup before looping 788 back forwarded datagrams. 789 790 Bump __FreeBSD_version to 800084. 791 79220090422: 793 Implement low-level Bluetooth HCI API. 794 Bump __FreeBSD_version to 800083. 795 79620090419: 797 The layout of struct malloc_type, used by modules to register new 798 memory allocation types, has changed. Most modules will need to 799 be rebuilt or panics may be experienced. 800 Bump __FreeBSD_version to 800081. 801 80220090415: 803 Anticipate overflowing inp_flags - add inp_flags2. 804 This changes most offsets in inpcb, so checking v4 connection 805 state will require a world rebuild. 806 Bump __FreeBSD_version to 800080. 807 80820090415: 809 Add an llentry to struct route and struct route_in6. Modules 810 embedding a struct route will need to be recompiled. 811 Bump __FreeBSD_version to 800079. 812 81320090414: 814 The size of rt_metrics_lite and by extension rtentry has changed. 815 Networking administration apps will need to be recompiled. 816 The route command now supports show as an alias for get, weighting 817 of routes, sticky and nostick flags to alter the behavior of stateful 818 load balancing. 819 Bump __FreeBSD_version to 800078. 820 82120090408: 822 Do not use Giant for kbdmux(4) locking. This is wrong and 823 apparently causing more problems than it solves. This will 824 re-open the issue where interrupt handlers may race with 825 kbdmux(4) in polling mode. Typical symptoms include (but 826 not limited to) duplicated and/or missing characters when 827 low level console functions (such as gets) are used while 828 interrupts are enabled (for example geli password prompt, 829 mountroot prompt etc.). Disabling kbdmux(4) may help. 830 83120090407: 832 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 833 kernel modules referencing any of the above need to be recompiled. 834 Bump __FreeBSD_version to 800075. 835 83620090320: 837 GEOM_PART has become the default partition slicer for storage devices, 838 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 839 introduces some changes: 840 841 MSDOS/EBR: the devices created from MSDOS extended partition entries 842 (EBR) can be named differently than with GEOM_MBR and are now symlinks 843 to devices with offset-based names. fstabs may need to be modified. 844 845 BSD: the "geometry does not match label" warning is harmless in most 846 cases but it points to problems in file system misalignment with 847 disk geometry. The "c" partition is now implicit, covers the whole 848 top-level drive and cannot be (mis)used by users. 849 850 General: Kernel dumps are now not allowed to be written to devices 851 whose partition types indicate they are meant to be used for file 852 systems (or, in case of MSDOS partitions, as something else than 853 the "386BSD" type). 854 855 Most of these changes date approximately from 200812. 856 85720090319: 858 The uscanner(4) driver has been removed from the kernel. This follows 859 Linux removing theirs in 2.6 and making libusb the default interface 860 (supported by sane). 861 86220090319: 863 The multicast forwarding code has been cleaned up. netstat(1) 864 only relies on KVM now for printing bandwidth upcall meters. 865 The IPv4 and IPv6 modules are split into ip_mroute_mod and 866 ip6_mroute_mod respectively. The config(5) options for statically 867 compiling this code remain the same, i.e. 'options MROUTING'. 868 86920090315: 870 Support for the IFF_NEEDSGIANT network interface flag has been 871 removed, which means that non-MPSAFE network device drivers are no 872 longer supported. In particular, if_ar, if_sr, and network device 873 drivers from the old (legacy) USB stack can no longer be built or 874 used. 875 87620090313: 877 POSIX.1 Native Language Support (NLS) has been enabled in libc and 878 a bunch of new language catalog files have also been added. 879 This means that some common libc messages are now localized and 880 they depend on the LC_MESSAGES environmental variable. 881 88220090313: 883 The k8temp(4) driver has been renamed to amdtemp(4) since 884 support for Family 10 and Family 11 CPU families was added. 885 88620090309: 887 IGMPv3 and Source-Specific Multicast (SSM) have been merged 888 to the IPv4 stack. VIMAGE hooks are in but not yet used. 889 890 For kernel developers, the most important changes are that the 891 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 892 and this lock has been downgraded to a non-recursive mutex. 893 894 Transport protocols (UDP, Raw IP) are now responsible for filtering 895 inbound multicast traffic according to group membership and source 896 filters. The imo_multicast_filter() KPI exists for this purpose. 897 Transports which do not use multicast (SCTP, TCP) already reject 898 multicast by default. Forwarding and receive performance may improve 899 as a mutex acquisition is no longer needed in the ip_input() 900 low-level input path. in_addmulti() and in_delmulti() are shimmed 901 to new KPIs which exist to support SSM in-kernel. 902 903 For application developers, it is recommended that loopback of 904 multicast datagrams be disabled for best performance, as this 905 will still cause the lock to be taken for each looped-back 906 datagram transmission. The net.inet.ip.mcast.loop sysctl may 907 be tuned to 0 to disable loopback by default; it defaults to 1 908 to preserve the existing behaviour. 909 910 For systems administrators, to obtain best performance with 911 multicast reception and multiple groups, it is always recommended 912 that a card with a suitably precise hash filter is used. Hash 913 collisions will still result in the lock being taken within the 914 transport protocol input path to check group membership. 915 916 If deploying FreeBSD in an environment with IGMP snooping switches, 917 it is recommended that the net.inet.igmp.sendlocal sysctl remain 918 enabled; this forces 224.0.0.0/24 group membership to be announced 919 via IGMP. 920 921 The size of 'struct igmpstat' has changed; netstat needs to be 922 recompiled to reflect this. 923 Bump __FreeBSD_version to 800070. 924 92520090309: 926 libusb20.so.1 is now installed as libusb.so.1 and the ports system 927 updated to use it. This requires a buildworld/installworld in order to 928 update the library and dependencies (usbconfig, etc). Its advisable to 929 rebuild all ports which uses libusb. More specific directions are given 930 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 931 libusb are no longer required and can be removed. 932 93320090302: 934 A workaround is committed to allow the creation of System V shared 935 memory segment of size > 2 GB on the 64-bit architectures. 936 Due to a limitation of the existing ABI, the shm_segsz member 937 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 938 wrong for large segments. Note that limits must be explicitly 939 raised to allow such segments to be created. 940 94120090301: 942 The layout of struct ifnet has changed, requiring a rebuild of all 943 network device driver modules. 944 94520090227: 946 The /dev handling for the new USB stack has changed, a 947 buildworld/installworld is required for libusb20. 948 94920090223: 950 The new USB2 stack has now been permanently moved in and all kernel and 951 module names reverted to their previous values (eg, usb, ehci, ohci, 952 ums, ...). The old usb stack can be compiled in by prefixing the name 953 with the letter 'o', the old usb modules have been removed. 954 Updating entry 20090216 for xorg and 20090215 for libmap may still 955 apply. 956 95720090217: 958 The rc.conf(5) option if_up_delay has been renamed to 959 defaultroute_delay to better reflect its purpose. If you have 960 customized this setting in /etc/rc.conf you need to update it to 961 use the new name. 962 96320090216: 964 xorg 7.4 wants to configure its input devices via hald which does not 965 yet work with USB2. If the keyboard/mouse does not work in xorg then 966 add 967 Option "AllowEmptyInput" "off" 968 to your ServerLayout section. This will cause X to use the configured 969 kbd and mouse sections from your xorg.conf. 970 97120090215: 972 The GENERIC kernels for all architectures now default to the new USB2 973 stack. No kernel config options or code have been removed so if a 974 problem arises please report it and optionally revert to the old USB 975 stack. If you are loading USB kernel modules or have a custom kernel 976 that includes GENERIC then ensure that usb names are also changed over, 977 eg uftdi -> usb2_serial_ftdi. 978 979 Older programs linked against the ports libusb 0.1 need to be 980 redirected to the new stack's libusb20. /etc/libmap.conf can 981 be used for this: 982 # Map old usb library to new one for usb2 stack 983 libusb-0.1.so.8 libusb20.so.1 984 98520090209: 986 All USB ethernet devices now attach as interfaces under the name ueN 987 (eg. ue0). This is to provide a predictable name as vendors often 988 change usb chipsets in a product without notice. 989 99020090203: 991 The ichsmb(4) driver has been changed to require SMBus slave 992 addresses be left-justified (xxxxxxx0b) rather than right-justified. 993 All of the other SMBus controller drivers require left-justified 994 slave addresses, so this change makes all the drivers provide the 995 same interface. 996 99720090201: 998 INET6 statistics (struct ip6stat) was updated. 999 netstat(1) needs to be recompiled. 1000 100120090119: 1002 NTFS has been removed from GENERIC kernel on amd64 to match 1003 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1004 will load ntfs.ko module automatically when NTFS support is 1005 actually needed, unless ntfs.ko is not installed or security 1006 level prohibits loading kernel modules. If either is the case, 1007 "options NTFS" has to be added into kernel config. 1008 100920090115: 1010 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1011 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1012 800061. User space tools that rely on the size of struct tcpcb in 1013 tcp_var.h (e.g. sockstat) need to be recompiled. 1014 101520081225: 1016 ng_tty(4) module updated to match the new TTY subsystem. 1017 Due to API change, user-level applications must be updated. 1018 New API support added to mpd5 CVS and expected to be present 1019 in next mpd5.3 release. 1020 102120081219: 1022 With __FreeBSD_version 800060 the makefs tool is part of 1023 the base system (it was a port). 1024 102520081216: 1026 The afdata and ifnet locks have been changed from mutexes to 1027 rwlocks, network modules will need to be re-compiled. 1028 102920081214: 1030 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1031 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1032 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1033 architecture and 40 bytes on 64-bit architecture. The userland 1034 applications "arp" and "ndp" have been updated accordingly. 1035 The output from "netstat -r" shows only routing entries and 1036 none of the L2 information. 1037 103820081130: 1039 __FreeBSD_version 800057 marks the switchover from the 1040 binary ath hal to source code. Users must add the line: 1041 1042 options AH_SUPPORT_AR5416 1043 1044 to their kernel config files when specifying: 1045 1046 device ath_hal 1047 1048 The ath_hal module no longer exists; the code is now compiled 1049 together with the driver in the ath module. It is now 1050 possible to tailor chip support (i.e. reduce the set of chips 1051 and thereby the code size); consult ath_hal(4) for details. 1052 105320081121: 1054 __FreeBSD_version 800054 adds memory barriers to 1055 <machine/atomic.h>, new interfaces to ifnet to facilitate 1056 multiple hardware transmit queues for cards that support 1057 them, and a lock-less ring-buffer implementation to 1058 enable drivers to more efficiently manage queueing of 1059 packets. 1060 106120081117: 1062 A new version of ZFS (version 13) has been merged to -HEAD. 1063 This version has zpool attribute "listsnapshots" off by 1064 default, which means "zfs list" does not show snapshots, 1065 and is the same as Solaris behavior. 1066 106720081028: 1068 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1069 107020081009: 1071 The uhci, ohci, ehci and slhci USB Host controller drivers have 1072 been put into separate modules. If you load the usb module 1073 separately through loader.conf you will need to load the 1074 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1075 controller add the following to loader.conf: 1076 1077 uhci_load="YES" 1078 ehci_load="YES" 1079 108020081009: 1081 The ABI used by the PMC toolset has changed. Please keep 1082 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1083 sync. 1084 108520081009: 1086 atapci kernel module now includes only generic PCI ATA 1087 driver. AHCI driver moved to ataahci kernel module. 1088 All vendor-specific code moved into separate kernel modules: 1089 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1090 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1091 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1092 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1093 109420080820: 1095 The TTY subsystem of the kernel has been replaced by a new 1096 implementation, which provides better scalability and an 1097 improved driver model. Most common drivers have been migrated to 1098 the new TTY subsystem, while others have not. The following 1099 drivers have not yet been ported to the new TTY layer: 1100 1101 PCI/ISA: 1102 cy, digi, rc, rp, sio 1103 1104 USB: 1105 ubser, ucycom 1106 1107 Line disciplines: 1108 ng_h4, ng_tty, ppp, sl, snp 1109 1110 Adding these drivers to your kernel configuration file shall 1111 cause compilation to fail. 1112 111320080818: 1114 ntpd has been upgraded to 4.2.4p5. 1115 111620080801: 1117 OpenSSH has been upgraded to 5.1p1. 1118 1119 For many years, FreeBSD's version of OpenSSH preferred DSA 1120 over RSA for host and user authentication keys. With this 1121 upgrade, we've switched to the vendor's default of RSA over 1122 DSA. This may cause upgraded clients to warn about unknown 1123 host keys even for previously known hosts. Users should 1124 follow the usual procedure for verifying host keys before 1125 accepting the RSA key. 1126 1127 This can be circumvented by setting the "HostKeyAlgorithms" 1128 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1129 command line. 1130 1131 Please note that the sequence of keys offered for 1132 authentication has been changed as well. You may want to 1133 specify IdentityFile in a different order to revert this 1134 behavior. 1135 113620080713: 1137 The sio(4) driver has been removed from the i386 and amd64 1138 kernel configuration files. This means uart(4) is now the 1139 default serial port driver on those platforms as well. 1140 1141 To prevent collisions with the sio(4) driver, the uart(4) driver 1142 uses different names for its device nodes. This means the 1143 onboard serial port will now most likely be called "ttyu0" 1144 instead of "ttyd0". You may need to reconfigure applications to 1145 use the new device names. 1146 1147 When using the serial port as a boot console, be sure to update 1148 /boot/device.hints and /etc/ttys before booting the new kernel. 1149 If you forget to do so, you can still manually specify the hints 1150 at the loader prompt: 1151 1152 set hint.uart.0.at="isa" 1153 set hint.uart.0.port="0x3F8" 1154 set hint.uart.0.flags="0x10" 1155 set hint.uart.0.irq="4" 1156 boot -s 1157 115820080609: 1159 The gpt(8) utility has been removed. Use gpart(8) to partition 1160 disks instead. 1161 116220080603: 1163 The version that Linuxulator emulates was changed from 2.4.2 1164 to 2.6.16. If you experience any problems with Linux binaries 1165 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1166 if it fixes the problem contact emulation mailing list. 1167 116820080525: 1169 ISDN4BSD (I4B) was removed from the src tree. You may need to 1170 update a your kernel configuration and remove relevant entries. 1171 117220080509: 1173 I have checked in code to support multiple routing tables. 1174 See the man pages setfib(1) and setfib(2). 1175 This is a hopefully backwards compatible version, 1176 but to make use of it you need to compile your kernel 1177 with options ROUTETABLES=2 (or more up to 16). 1178 117920080420: 1180 The 802.11 wireless support was redone to enable multi-bss 1181 operation on devices that are capable. The underlying device 1182 is no longer used directly but instead wlanX devices are 1183 cloned with ifconfig. This requires changes to rc.conf files. 1184 For example, change: 1185 ifconfig_ath0="WPA DHCP" 1186 to 1187 wlans_ath0=wlan0 1188 ifconfig_wlan0="WPA DHCP" 1189 see rc.conf(5) for more details. In addition, mergemaster of 1190 /etc/rc.d is highly recommended. Simultaneous update of userland 1191 and kernel wouldn't hurt either. 1192 1193 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1194 modules were merged into the base wlan module. All references 1195 to these modules (e.g. in kernel config files) must be removed. 1196 119720080408: 1198 psm(4) has gained write(2) support in native operation level. 1199 Arbitrary commands can be written to /dev/psm%d and status can 1200 be read back from it. Therefore, an application is responsible 1201 for status validation and error recovery. It is a no-op in 1202 other operation levels. 1203 120420080312: 1205 Support for KSE threading has been removed from the kernel. To 1206 run legacy applications linked against KSE libmap.conf may 1207 be used. The following libmap.conf may be used to ensure 1208 compatibility with any prior release: 1209 1210 libpthread.so.1 libthr.so.1 1211 libpthread.so.2 libthr.so.2 1212 libkse.so.3 libthr.so.3 1213 121420080301: 1215 The layout of struct vmspace has changed. This affects libkvm 1216 and any executables that link against libkvm and use the 1217 kvm_getprocs() function. In particular, but not exclusively, 1218 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1219 The effects are minimal, but it's advisable to upgrade world 1220 nonetheless. 1221 122220080229: 1223 The latest em driver no longer has support in it for the 1224 82575 adapter, this is now moved to the igb driver. The 1225 split was done to make new features that are incompatible 1226 with older hardware easier to do. 1227 122820080220: 1229 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1230 likewise the kernel option is now GEOM_LINUX_LVM. 1231 123220080211: 1233 The default NFS mount mode has changed from UDP to TCP for 1234 increased reliability. If you rely on (insecurely) NFS 1235 mounting across a firewall you may need to update your 1236 firewall rules. 1237 123820080208: 1239 Belatedly note the addition of m_collapse for compacting 1240 mbuf chains. 1241 124220080126: 1243 The fts(3) structures have been changed to use adequate 1244 integer types for their members and so to be able to cope 1245 with huge file trees. The old fts(3) ABI is preserved 1246 through symbol versioning in libc, so third-party binaries 1247 using fts(3) should still work, although they will not take 1248 advantage of the extended types. At the same time, some 1249 third-party software might fail to build after this change 1250 due to unportable assumptions made in its source code about 1251 fts(3) structure members. Such software should be fixed 1252 by its vendor or, in the worst case, in the ports tree. 1253 FreeBSD_version 800015 marks this change for the unlikely 1254 case that a portable fix is impossible. 1255 125620080123: 1257 To upgrade to -current after this date, you must be running 1258 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1259 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1260 126120071128: 1262 The ADAPTIVE_GIANT kernel option has been retired because its 1263 functionality is the default now. 1264 126520071118: 1266 The AT keyboard emulation of sunkbd(4) has been turned on 1267 by default. In order to make the special symbols of the Sun 1268 keyboards driven by sunkbd(4) work under X these now have 1269 to be configured the same way as Sun USB keyboards driven 1270 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1271 1272 Option "XkbLayout" "us" 1273 Option "XkbRules" "xorg" 1274 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1275 127620071024: 1277 It has been decided that it is desirable to provide ABI 1278 backwards compatibility to the FreeBSD 4/5/6 versions of the 1279 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1280 broken with the introduction of PCI domain support (see the 1281 20070930 entry). Unfortunately, this required the ABI of 1282 PCIOCGETCONF to be broken again in order to be able to 1283 provide backwards compatibility to the old version of that 1284 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1285 again. As for prominent ports this affects neither pciutils 1286 nor xorg-server this time, the hal port needs to be rebuilt 1287 however. 1288 128920071020: 1290 The misnamed kthread_create() and friends have been renamed 1291 to kproc_create() etc. Many of the callers already 1292 used kproc_start().. 1293 I will return kthread_create() and friends in a while 1294 with implementations that actually create threads, not procs. 1295 Renaming corresponds with version 800002. 1296 129720071010: 1298 RELENG_7 branched. 1299 1300COMMON ITEMS: 1301 1302 General Notes 1303 ------------- 1304 Avoid using make -j when upgrading. While generally safe, there are 1305 sometimes problems using -j to upgrade. If your upgrade fails with 1306 -j, please try again without -j. From time to time in the past there 1307 have been problems using -j with buildworld and/or installworld. This 1308 is especially true when upgrading between "distant" versions (eg one 1309 that cross a major release boundary or several minor releases, or when 1310 several months have passed on the -current branch). 1311 1312 Sometimes, obscure build problems are the result of environment 1313 poisoning. This can happen because the make utility reads its 1314 environment when searching for values for global variables. To run 1315 your build attempts in an "environmental clean room", prefix all make 1316 commands with 'env -i '. See the env(1) manual page for more details. 1317 1318 When upgrading from one major version to another it is generally best 1319 to upgrade to the latest code in the currently installed branch first, 1320 then do an upgrade to the new branch. This is the best-tested upgrade 1321 path, and has the highest probability of being successful. Please try 1322 this approach before reporting problems with a major version upgrade. 1323 1324 ZFS notes 1325 --------- 1326 When upgrading the boot ZFS pool to a new version, always follow 1327 these two steps: 1328 1329 1.) recompile and reinstall the ZFS boot loader and boot block 1330 (this is part of "make buildworld" and "make installworld") 1331 1332 2.) update the ZFS boot block on your boot drive 1333 1334 The following example updates the ZFS boot block on the first 1335 partition (freebsd-boot) of a GPT partitioned drive ad0: 1336 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1337 1338 Non-boot pools do not need these updates. 1339 1340 To build a kernel 1341 ----------------- 1342 If you are updating from a prior version of FreeBSD (even one just 1343 a few days old), you should follow this procedure. It is the most 1344 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1345 1346 make kernel-toolchain 1347 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1348 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1349 1350 To test a kernel once 1351 --------------------- 1352 If you just want to boot a kernel once (because you are not sure 1353 if it works, or if you want to boot a known bad kernel to provide 1354 debugging information) run 1355 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1356 nextboot -k testkernel 1357 1358 To just build a kernel when you know that it won't mess you up 1359 -------------------------------------------------------------- 1360 This assumes you are already running a CURRENT system. Replace 1361 ${arch} with the architecture of your machine (e.g. "i386", 1362 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1363 1364 cd src/sys/${arch}/conf 1365 config KERNEL_NAME_HERE 1366 cd ../compile/KERNEL_NAME_HERE 1367 make depend 1368 make 1369 make install 1370 1371 If this fails, go to the "To build a kernel" section. 1372 1373 To rebuild everything and install it on the current system. 1374 ----------------------------------------------------------- 1375 # Note: sometimes if you are running current you gotta do more than 1376 # is listed here if you are upgrading from a really old current. 1377 1378 <make sure you have good level 0 dumps> 1379 make buildworld 1380 make kernel KERNCONF=YOUR_KERNEL_HERE 1381 [1] 1382 <reboot in single user> [3] 1383 mergemaster -p [5] 1384 make installworld 1385 mergemaster -i [4] 1386 make delete-old [6] 1387 <reboot> 1388 1389 1390 To cross-install current onto a separate partition 1391 -------------------------------------------------- 1392 # In this approach we use a separate partition to hold 1393 # current's root, 'usr', and 'var' directories. A partition 1394 # holding "/", "/usr" and "/var" should be about 2GB in 1395 # size. 1396 1397 <make sure you have good level 0 dumps> 1398 <boot into -stable> 1399 make buildworld 1400 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1401 <maybe newfs current's root partition> 1402 <mount current's root partition on directory ${CURRENT_ROOT}> 1403 make installworld DESTDIR=${CURRENT_ROOT} 1404 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1405 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1406 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1407 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1408 <reboot into current> 1409 <do a "native" rebuild/install as described in the previous section> 1410 <maybe install compatibility libraries from ports/misc/compat*> 1411 <reboot> 1412 1413 1414 To upgrade in-place from 8.x-stable to current 1415 ---------------------------------------------- 1416 <make sure you have good level 0 dumps> 1417 make buildworld [9] 1418 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1419 [1] 1420 <reboot in single user> [3] 1421 mergemaster -p [5] 1422 make installworld 1423 mergemaster -i [4] 1424 make delete-old [6] 1425 <reboot> 1426 1427 Make sure that you've read the UPDATING file to understand the 1428 tweaks to various things you need. At this point in the life 1429 cycle of current, things change often and you are on your own 1430 to cope. The defaults can also change, so please read ALL of 1431 the UPDATING entries. 1432 1433 Also, if you are tracking -current, you must be subscribed to 1434 freebsd-current@freebsd.org. Make sure that before you update 1435 your sources that you have read and understood all the recent 1436 messages there. If in doubt, please track -stable which has 1437 much fewer pitfalls. 1438 1439 [1] If you have third party modules, such as vmware, you 1440 should disable them at this point so they don't crash your 1441 system on reboot. 1442 1443 [3] From the bootblocks, boot -s, and then do 1444 fsck -p 1445 mount -u / 1446 mount -a 1447 cd src 1448 adjkerntz -i # if CMOS is wall time 1449 Also, when doing a major release upgrade, it is required that 1450 you boot into single user mode to do the installworld. 1451 1452 [4] Note: This step is non-optional. Failure to do this step 1453 can result in a significant reduction in the functionality of the 1454 system. Attempting to do it by hand is not recommended and those 1455 that pursue this avenue should read this file carefully, as well 1456 as the archives of freebsd-current and freebsd-hackers mailing lists 1457 for potential gotchas. The -U option is also useful to consider. 1458 See mergemaster(8) for more information. 1459 1460 [5] Usually this step is a noop. However, from time to time 1461 you may need to do this if you get unknown user in the following 1462 step. It never hurts to do it all the time. You may need to 1463 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1464 install) after the buildworld before this step if you last updated 1465 from current before 20020224 or from -stable before 20020408. 1466 1467 [6] This only deletes old files and directories. Old libraries 1468 can be deleted by "make delete-old-libs", but you have to make 1469 sure that no program is using those libraries anymore. 1470 1471 [8] In order to have a kernel that can run the 4.x binaries needed to 1472 do an installworld, you must include the COMPAT_FREEBSD4 option in 1473 your kernel. Failure to do so may leave you with a system that is 1474 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1475 required to run the 5.x binaries on more recent kernels. And so on 1476 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1477 1478 Make sure that you merge any new devices from GENERIC since the 1479 last time you updated your kernel config file. 1480 1481 [9] When checking out sources, you must include the -P flag to have 1482 cvs prune empty directories. 1483 1484 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1485 "?=" instead of the "=" assignment operator, so that buildworld can 1486 override the CPUTYPE if it needs to. 1487 1488 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1489 not on the command line, or in /etc/make.conf. buildworld will 1490 warn if it is improperly defined. 1491FORMAT: 1492 1493This file contains a list, in reverse chronological order, of major 1494breakages in tracking -current. It is not guaranteed to be a complete 1495list of such breakages, and only contains entries since October 10, 2007. 1496If you need to see UPDATING entries from before that date, you will need 1497to fetch an UPDATING file from an older FreeBSD release. 1498 1499Copyright information: 1500 1501Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1502 1503Redistribution, publication, translation and use, with or without 1504modification, in full or in part, in any form or format of this 1505document are permitted without further permission from the author. 1506 1507THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1508IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1509WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1510DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1511INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1512(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1513SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1514HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1515STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1516IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1517POSSIBILITY OF SUCH DAMAGE. 1518 1519Contact Warner Losh if you have any questions about your use of 1520this document. 1521 1522$FreeBSD$ 1523