UPDATING revision 221114
154033Sn_hibmaUpdating Information for FreeBSD current users 254033Sn_hibma 354033Sn_hibmaThis file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 454033Sn_hibmaSee end of file for further details. For commonly done items, please see the 554033Sn_hibmaCOMMON ITEMS: section later in the file. These instructions assume that you 654033Sn_hibmabasically know what you are doing. If not, then please consult the FreeBSD 754033Sn_hibmahandbook. 854033Sn_hibma 954033Sn_hibmaItems affecting the ports and packages system can be found in 1054033Sn_hibma/usr/ports/UPDATING. Please read that file before running portupgrade. 1154033Sn_hibma 1254033Sn_hibmaNOTE TO PEOPLE WHO THINK THAT FreeBSD 9.x IS SLOW: 1354033Sn_hibma FreeBSD 9.x has many debugging features turned on, in both the kernel 1454033Sn_hibma and userland. These features attempt to detect incorrect use of 1554033Sn_hibma system primitives, and encourage loud failure through extra sanity 1654033Sn_hibma checking and fail stop semantics. They also substantially impact 1754033Sn_hibma system performance. If you want to do performance measurement, 1854033Sn_hibma benchmarking, and optimization, you'll want to turn them off. This 1954033Sn_hibma includes various WITNESS- related kernel options, INVARIANTS, malloc 2054033Sn_hibma debugging flags in userland, and various verbose features in the 2154033Sn_hibma kernel. Many developers choose to disable these features on build 2254033Sn_hibma machines to maximize performance. (To disable malloc debugging, run 2354033Sn_hibma ln -s aj /etc/malloc.conf.) 2454033Sn_hibma 2554033Sn_hibma20110424: 2654033Sn_hibma The GENERIC kernels for all architectures now default to the new 2754033Sn_hibma CAM-based ATA stack. It means that all legacy ATA drivers were 2854033Sn_hibma removed and replaced by respective CAM drivers. If you are using 2954033Sn_hibma ATA device names in /etc/fstab or other places, make sure to update 3054033Sn_hibma them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 31182039Simp where 'Y's are the sequential numbers starting from zero for each type 3254033Sn_hibma in order of detection, unless configured otherwise with tunables, 3379538Sru see cam(4)). There will be symbolic links created in /dev/ to map 3454033Sn_hibma old adX devices to the respective adaY. They should provide basic 3554033Sn_hibma compatibility for file systems mounting in most cases, but they do 3654033Sn_hibma not support old user-level APIs and do not have respective providers 3754033Sn_hibma in GEOM. Consider using updated management tools with new device names. 3884306Sru 3984306Sru It is possible to load devices ahci, ata, siis and mvs as modules, 4054033Sn_hibma but option ATA_CAM should remain in kernel configuration to make ata 4154033Sn_hibma module work as CAM driver supporting legacy ATA controllers. Device ata 4254033Sn_hibma still can be used in modular fashion (atacore + ...). Modules atadisk 4354033Sn_hibma and atapi* are not used and won't affect operation in ATA_CAM mode. 4454033Sn_hibma Note that to use CAM-based ATA kernel should include CAM devices 4554033Sn_hibma scbus, pass, da (or explicitly ada), cd and optionally others. All of 4654033Sn_hibma them are parts of the cam module. 4754033Sn_hibma 4854033Sn_hibma ataraid(4) functionality is now supported by the RAID GEOM class. 4954033Sn_hibma To use it you can load geom_raid kernel module and use graid(8) tool 5054033Sn_hibma for management. Instead of /dev/arX device names, use /dev/raid/rX. 51233648Seadler 52182039Simp No kernel config options or code have been removed, so if a problem 53233648Seadler arises, please report it and optionally revert to the old ATA stack. 54182039Simp In order to do it you can remove from the kernel config: 5554033Sn_hibma options ATA_CAM 5654033Sn_hibma device ahci 5754033Sn_hibma device mvs 5854033Sn_hibma device siis 5954033Sn_hibma , and instead add back: 6054033Sn_hibma device atadisk # ATA disk drives 61121414Shmp device ataraid # ATA RAID drives 6254033Sn_hibma device atapicd # ATAPI CDROM drives 63 device atapifd # ATAPI floppy drives 64 device atapist # ATAPI tape drives 65 6620110423: 67 The default NFS server has been changed to the new server, which 68 was referred to as the experimental server. If you need to switch 69 back to the old NFS server, you must now put the "-o" option on 70 both the mountd and nfsd commands. This can be done using the 71 mountd_flags and nfs_server_flags rc.conf variables until an 72 update to the rc scripts is committed, which is coming soon. 73 7420110418: 75 The GNU Objective-C runtime library (libobjc), and other Objective-C 76 related components have been removed from the base system. If you 77 require an Objective-C library, please use one of the available ports. 78 7920110331: 80 ath(4) has been split into bus- and device- modules. if_ath contains 81 the HAL, the TX rate control and the network device code. if_ath_pci 82 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 83 contains the AHB glue. Users need to load both if_ath_pci and if_ath 84 in order to use ath on everything else. 85 86 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 87 need to load if_ath and if_ath_pci for ath(4) operation. 88 8920110314: 90 As part of the replacement of sysinstall, the process of building 91 release media has changed significantly. For details, please re-read 92 release(7), which has been updated to reflect the new build process. 93 9420110218: 95 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 96 is the last available version under GPLv2. It brings a number of new 97 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 98 4.1 and SSE 4.2), better support for powerpc64, a number of new 99 directives, and lots of other small improvements. See the ChangeLog 100 file in contrib/binutils for the full details. 101 10220110218: 103 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 104 compliant, and will now use half of hash for authentication. 105 This will break interoperability with all stacks (including all 106 actual FreeBSD versions) who implement 107 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 108 authentication). 109 The only workaround with such peers is to use another HMAC 110 algorithm for IPsec ("phase 2") authentication. 111 11220110207: 113 Remove the uio_yield prototype and symbol. This function has 114 been misnamed since it was introduced and should not be 115 globally exposed with this name. The equivalent functionality 116 is now available using kern_yield(curthread->td_user_pri). 117 The function remains undocumented. 118 11920110112: 120 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 121 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 122 for scalar sysctls is defined but disabled. Code that needs 123 UQUAD to pass the type checking that must compile on older 124 systems where the define is not present can check against 125 __FreeBSD_version >= 900030. 126 127 The system dialog(1) has been replaced with a new version previously 128 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 129 with the previous version, but the libdialog associated with it has 130 a largely incompatible API. As such, the original version of libdialog 131 will be kept temporarily as libodialog, until its base system consumers 132 are replaced or updated. Bump __FreeBSD_version to 900030. 133 13420110103: 135 If you are trying to run make universe on a -stable system, and you get 136 the following warning: 137 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 138 unknown. config(8) likely too old." 139 or something similar to it, then you must upgrade your -stable system 140 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 141 stable/8) or build the config from the latest stable/8 branch and 142 install it on your system. 143 144 Prior to this date, building a current universe on 8-stable system from 145 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 146 error in the first kernel build phase. A new config on those old 147 systems will fix that problem for older versions of -current. 148 14920101228: 150 The TCP stack has been modified to allow Khelp modules to interact with 151 it via helper hook points and store per-connection data in the TCP 152 control block. Bump __FreeBSD_version to 900029. User space tools that 153 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 154 be recompiled. 155 15620101114: 157 Generic IEEE 802.3 annex 31B full duplex flow control support has been 158 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 159 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 160 to take advantage of it instead of using custom implementations. This 161 means that these drivers now no longer unconditionally advertise 162 support for flow control but only do so if flow control is a selected 163 media option. This was implemented in the generic support that way in 164 order to allow flow control to be switched on and off via ifconfig(8) 165 with the PHY specific default to typically off in order to protect 166 from unwanted effects. Consequently, if you used flow control with 167 one of the above mentioned drivers you now need to explicitly enable 168 it, for example via: 169 ifconfig bge0 media auto mediaopt flowcontrol 170 171 Along with the above mentioned changes generic support for setting 172 1000baseT master mode also has been added and brgphy(4), ciphy(4), 173 e1000phy(4) as well as ip1000phy(4) have been converted to take 174 advantage of it. This means that these drivers now no longer take the 175 link0 parameter for selecting master mode but the master media option 176 has to be used instead, for example like in the following: 177 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 178 179 Selection of master mode now is also available with all other PHY 180 drivers supporting 1000baseT. 181 18220101111: 183 The TCP stack has received a significant update to add support for 184 modularised congestion control and generally improve the clarity of 185 congestion control decisions. Bump __FreeBSD_version to 900025. User 186 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 187 sockstat) need to be recompiled. 188 18920101002: 190 The man(1) utility has been replaced by a new version that no longer 191 uses /etc/manpath.config. Please consult man.conf(5) for how to 192 migrate local entries to the new format. 193 19420100928: 195 The copyright strings printed by login(1) and sshd(8) at the time of a 196 new connection have been removed to follow other operating systems and 197 upstream sshd. 198 19920100915: 200 A workaround for a fixed ld bug has been removed in kernel code, 201 so make sure that your system ld is built from sources after 202 revision 210245 from 2010-07-19 (r211583 if building head kernel 203 on stable/8, r211584 for stable/7; both from 2010-08-21). 204 A symptom of incorrect ld version is different addresses for 205 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 206 20720100913: 208 The $ipv6_prefer variable in rc.conf(5) has been split into 209 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 210 211 The $ip6addrctl_policy is a variable to choose a pre-defined 212 address selection policy set by ip6addrctl(8). A value 213 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 214 default is "AUTO". 215 216 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 217 flag (see an entry of 20090926) is set on an interface with no 218 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 219 security reason. If you want IPv6 link-local address on all 220 interfaces by default, set this to "YES". 221 222 The old ipv6_prefer="YES" is equivalent to 223 ipv6_activate_all_interfaces="YES" and 224 ip6addrctl_policy="ipv6_prefer". 225 22620100913: 227 DTrace has grown support for userland tracing. Due to this, DTrace is 228 now i386 and amd64 only. 229 dtruss(1) is now installed by default on those systems and a new 230 kernel module is needed for userland tracing: fasttrap. 231 No changes to your kernel config file are necessary to enable 232 userland tracing, but you might consider adding 'STRIP=' and 233 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 234 to have informative userland stack traces in DTrace (ustack). 235 23620100725: 237 The acpi_aiboost(4) driver has been removed in favor of the new 238 aibs(4) driver. You should update your kernel configuration file. 239 24020100722: 241 BSD grep has been imported to the base system and it is built by 242 default. It is completely BSD licensed, highly GNU-compatible, uses 243 less memory than its GNU counterpart and has a small codebase. 244 However, it is slower than its GNU counterpart, which is mostly 245 noticeable for larger searches, for smaller ones it is measurable 246 but not significant. The reason is complex, the most important factor 247 is that we lack a modern and efficient regex library and GNU 248 overcomes this by optimizing the searches internally. Future work 249 on improving the regex performance is planned, for the meantime, 250 users that need better performance, can build GNU grep instead by 251 setting the WITH_GNU_GREP knob. 252 25320100713: 254 Due to the import of powerpc64 support, all existing powerpc kernel 255 configuration files must be updated with a machine directive like this: 256 machine powerpc powerpc 257 258 In addition, an updated config(8) is required to build powerpc kernels 259 after this change. 260 26120100713: 262 A new version of ZFS (version 15) has been merged to -HEAD. 263 This version uses a python library for the following subcommands: 264 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 265 For full functionality of these commands the following port must 266 be installed: sysutils/py-zfs 267 26820100429: 269 'vm_page's are now hashed by physical address to an array of mutexes. 270 Currently this is only used to serialize access to hold_count. Over 271 time the page queue mutex will be peeled away. This changes the size 272 of pmap on every architecture. And requires all callers of vm_page_hold 273 and vm_page_unhold to be updated. 274 27520100402: 276 WITH_CTF can now be specified in src.conf (not recommended, there 277 are some problems with static executables), make.conf (would also 278 affect ports which do not use GNU make and do not override the 279 compile targets) or in the kernel config (via "makeoptions 280 WITH_CTF=yes"). 281 When WITH_CTF was specified there before this was silently ignored, 282 so make sure that WITH_CTF is not used in places which could lead 283 to unwanted behavior. 284 28520100311: 286 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 287 to allow 32-bit compatibility on non-x86 platforms. All kernel 288 configurations on amd64 and ia64 platforms using these options must 289 be modified accordingly. 290 29120100113: 292 The utmp user accounting database has been replaced with utmpx, 293 the user accounting interface standardized by POSIX. 294 Unfortunately the semantics of utmp and utmpx don't match, 295 making it practically impossible to support both interfaces. 296 The user accounting database is used by tools like finger(1), 297 last(1), talk(1), w(1) and ac(8). 298 299 All applications in the base system use utmpx. This means only 300 local binaries (e.g. from the ports tree) may still use these 301 utmp database files. These applications must be rebuilt to make 302 use of utmpx. 303 304 After the system has been upgraded, it is safe to remove the old 305 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 306 assuming their contents is of no importance anymore. Old wtmp 307 databases can only be used by last(1) and ac(8) after they have 308 been converted to the new format using wtmpcvt(1). 309 31020100108: 311 Introduce the kernel thread "deadlock resolver" (which can be enabled 312 via the DEADLKRES option, see NOTES for more details) and the 313 sleepq_type() function for sleepqueues. 314 31520091202: 316 The rc.firewall and rc.firewall6 were unified, and 317 rc.firewall6 and rc.d/ip6fw were removed. 318 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 319 variables are obsoleted. Instead, the following new rc 320 variables are added to rc.d/ipfw: 321 322 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 323 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 324 firewall_simple_onet_ipv6, firewall_trusted_ipv6 325 326 The meanings correspond to the relevant IPv4 variables. 327 32820091125: 329 8.0-RELEASE. 330 33120091113: 332 The default terminal emulation for syscons(4) has been changed 333 from cons25 to xterm on all platforms except pc98. This means 334 that the /etc/ttys file needs to be updated to ensure correct 335 operation of applications on the console. 336 337 The terminal emulation style can be toggled per window by using 338 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 339 options can be used to change the compile-time default back to 340 cons25. 341 342 To prevent graphical artifacts, make sure the TERM environment 343 variable is set to match the terminal emulation that is being 344 performed by syscons(4). 345 34620091109: 347 The layout of the structure ieee80211req_scan_result has changed. 348 Applications that require wireless scan results (e.g. ifconfig(8)) 349 from net80211 need to be recompiled. 350 351 Applications such as wpa_supplicant(8) may require a full world 352 build without using NO_CLEAN in order to get synchronized with the 353 new structure. 354 35520091025: 356 The iwn(4) driver has been updated to support the 5000 and 5150 series. 357 There's one kernel module for each firmware. Adding "device iwnfw" 358 to the kernel configuration file means including all three firmware 359 images inside the kernel. If you want to include just the one for 360 your wireless card, use the the devices iwn4965fw, iwn5000fw or 361 iwn5150fw. 362 36320090926: 364 The rc.d/network_ipv6, IPv6 configuration script has been integrated 365 into rc.d/netif. The changes are the following: 366 367 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 368 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 369 Note that both variables need the "inet6" keyword at the head. 370 371 Do not set $ipv6_network_interfaces manually if you do not 372 understand what you are doing. It is not needed in most cases. 373 374 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 375 they are obsolete. 376 377 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 378 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 379 380 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 381 all configured interfaces have "inet6 accept_rtadv" in the 382 $ifconfig_IF_ipv6. These are for backward compatibility. 383 384 3. A new variable $ipv6_prefer has been added. If NO, IPv6 385 functionality of interfaces with no corresponding 386 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 387 and the default address selection policy of ip6addrctl(8) 388 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 389 Note that if you want to configure IPv6 functionality on the 390 disabled interfaces after boot, first you need to clear the flag by 391 using ifconfig(8) like: 392 393 ifconfig em0 inet6 -ifdisabled 394 395 If YES, the default address selection policy is set as 396 IPv6-preferred. 397 398 The default value of $ipv6_prefer is NO. 399 400 4. If your system need to receive Router Advertisement messages, 401 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 402 scripts automatically invoke rtsol(8) when the interface becomes 403 UP. The Router Advertisement messages are used for SLAAC 404 (State-Less Address AutoConfiguration). 405 40620090922: 407 802.11s D3.03 support was committed. This is incompatible with the 408 previous code, which was based on D3.0. 409 41020090912: 411 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 412 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 413 control whether accepting Router Advertisement messages or not. 414 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 415 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 416 The ifconfig(8) utility now supports these flags. 417 41820090910: 419 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 420 mount(8) and -a option for df(1) to see them. 421 42220090825: 423 The old tunable hw.bus.devctl_disable has been superseded by 424 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 425 replaced by hw.bus.devctl_queue=0. The default for this new tunable 426 is 1000. 427 42820090813: 429 Remove the option STOP_NMI. The default action is now to use NMI only 430 for KDB via the newly introduced function stop_cpus_hard() and 431 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 432 43320090803: 434 The stable/8 branch created in subversion. This corresponds to the 435 RELENG_8 branch in CVS. 436 43720090719: 438 Bump the shared library version numbers for all libraries that do not 439 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 440 __FreeBSD_version to 800105. 441 44220090714: 443 Due to changes in the implementation of virtual network stack support, 444 all network-related kernel modules must be recompiled. As this change 445 breaks the ABI, bump __FreeBSD_version to 800104. 446 44720090713: 448 The TOE interface to the TCP syncache has been modified to remove 449 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 450 The cxgb driver is the only TOE consumer affected by this change, and 451 needs to be recompiled along with the kernel. As this change breaks 452 the ABI, bump __FreeBSD_version to 800103. 453 45420090712: 455 Padding has been added to struct tcpcb, sackhint and tcpstat in 456 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 457 maintaining the ABI. However, this change breaks the ABI, so bump 458 __FreeBSD_version to 800102. User space tools that rely on the size of 459 any of these structs (e.g. sockstat) need to be recompiled. 460 46120090630: 462 The NFS_LEGACYRPC option has been removed along with the old kernel 463 RPC implementation that this option selected. Kernel configurations 464 may need to be adjusted. 465 46620090629: 467 The network interface device nodes at /dev/net/<interface> have been 468 removed. All ioctl operations can be performed the normal way using 469 routing sockets. The kqueue functionality can generally be replaced 470 with routing sockets. 471 47220090628: 473 The documentation from the FreeBSD Documentation Project (Handbook, 474 FAQ, etc.) is now installed via packages by sysinstall(8) and under 475 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 476 47720090624: 478 The ABI of various structures related to the SYSV IPC API have been 479 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 480 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 481 800100. 482 48320090622: 484 Layout of struct vnet has changed as routing related variables were 485 moved to their own Vimage module. Modules need to be recompiled. Bump 486 __FreeBSD_version to 800099. 487 48820090619: 489 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 490 respectively. As long as no more than 16 groups per process are used, 491 no changes should be visible. When more than 16 groups are used, old 492 binaries may fail if they call getgroups() or getgrouplist() with 493 statically sized storage. Recompiling will work around this, but 494 applications should be modified to use dynamically allocated storage 495 for group arrays as POSIX.1-2008 does not cap an implementation's 496 number of supported groups at NGROUPS_MAX+1 as previous versions did. 497 498 NFS and portalfs mounts may also be affected as the list of groups is 499 truncated to 16. Users of NFS who use more than 16 groups, should 500 take care that negative group permissions are not used on the exported 501 file systems as they will not be reliable unless a GSSAPI based 502 authentication method is used. 503 50420090616: 505 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 506 option compiles in the support for adaptive spinning for lockmgrs 507 which want to enable it. The lockinit() function now accepts the flag 508 LK_ADAPTIVE in order to make the lock object subject to adaptive 509 spinning when both held in write and read mode. 510 51120090613: 512 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 513 changed. User applications that use this ioctl need to be rebuilt. 514 51520090611: 516 The layout of struct thread has changed. Kernel and modules need to 517 be rebuilt. 518 51920090608: 520 The layout of structs ifnet, domain, protosw and vnet_net has changed. 521 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 522 52320090602: 524 window(1) has been removed from the base system. It can now be 525 installed from ports. The port is called misc/window. 526 52720090601: 528 The way we are storing and accessing `routing table' entries has 529 changed. Programs reading the FIB, like netstat, need to be 530 re-compiled. 531 53220090601: 533 A new netisr implementation has been added for FreeBSD 8. Network 534 file system modules, such as igmp, ipdivert, and others, should be 535 rebuilt. 536 Bump __FreeBSD_version to 800096. 537 53820090530: 539 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 540 more valid. 541 54220090530: 543 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 544 Bump __FreeBSD_version to 800094. 545 54620090529: 547 Add mnt_xflag field to 'struct mount'. File system modules need to be 548 rebuilt. 549 Bump __FreeBSD_version to 800093. 550 55120090528: 552 The compiling option ADAPTIVE_SX has been retired while it has been 553 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 554 The KPI for sx_init_flags() changes as accepting flags: 555 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 556 been introduced in order to handle the reversed logic. 557 Bump __FreeBSD_version to 800092. 558 55920090527: 560 Add support for hierarchical jails. Remove global securelevel. 561 Bump __FreeBSD_version to 800091. 562 56320090523: 564 The layout of struct vnet_net has changed, therefore modules 565 need to be rebuilt. 566 Bump __FreeBSD_version to 800090. 567 56820090523: 569 The newly imported zic(8) produces a new format in the output. Please 570 run tzsetup(8) to install the newly created data to /etc/localtime. 571 57220090520: 573 The sysctl tree for the usb stack has renamed from hw.usb2.* to 574 hw.usb.* and is now consistent again with previous releases. 575 57620090520: 577 802.11 monitor mode support was revised and driver api's were changed. 578 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 579 of DLT_IEEE802_11. No user-visible data structures were changed but 580 applications that use DLT_IEEE802_11 may require changes. 581 Bump __FreeBSD_version to 800088. 582 58320090430: 584 The layout of the following structs has changed: sysctl_oid, 585 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 586 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 587 panics may be experienced. World rebuild is required for 588 correctly checking networking state from userland. 589 Bump __FreeBSD_version to 800085. 590 59120090429: 592 MLDv2 and Source-Specific Multicast (SSM) have been merged 593 to the IPv6 stack. VIMAGE hooks are in but not yet used. 594 The implementation of SSM within FreeBSD's IPv6 stack closely 595 follows the IPv4 implementation. 596 597 For kernel developers: 598 599 * The most important changes are that the ip6_output() and 600 ip6_input() paths no longer take the IN6_MULTI_LOCK, 601 and this lock has been downgraded to a non-recursive mutex. 602 603 * As with the changes to the IPv4 stack to support SSM, filtering 604 of inbound multicast traffic must now be performed by transport 605 protocols within the IPv6 stack. This does not apply to TCP and 606 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 607 608 * The KPIs used by IPv6 multicast are similar to those used by 609 the IPv4 stack, with the following differences: 610 * im6o_mc_filter() is analogous to imo_multicast_filter(). 611 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 612 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 613 * IN6_LOOKUP_MULTI() has been deprecated and removed. 614 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 615 for MLDv1 have an additional 'timer' argument which is used to 616 jitter the initial membership report for the solicited-node 617 multicast membership on-link. 618 * This is not strictly needed for MLDv2, which already jitters 619 its report transmissions. However, the 'timer' argument is 620 preserved in case MLDv1 is active on the interface. 621 622 * The KAME linked-list based IPv6 membership implementation has 623 been refactored to use a vector similar to that used by the IPv4 624 stack. 625 Code which maintains a list of its own multicast memberships 626 internally, e.g. carp, has been updated to reflect the new 627 semantics. 628 629 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 630 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 631 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 632 implementation constraint which needs to be addressed in HEAD. 633 634 For application developers: 635 636 * The changes are broadly similar to those made for the IPv4 637 stack. 638 639 * The use of IPv4 and IPv6 multicast socket options on the same 640 socket, using mapped addresses, HAS NOT been tested or supported. 641 642 * There are a number of issues with the implementation of various 643 IPv6 multicast APIs which need to be resolved in the API surface 644 before the implementation is fully compatible with KAME userland 645 use, and these are mostly to do with interface index treatment. 646 647 * The literature available discusses the use of either the delta / ASM 648 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 649 using setsourcefilter(3)/getsourcefilter(3). For more information 650 please refer to RFC 3768, 'Socket Interface Extensions for 651 Multicast Source Filters'. 652 653 * Applications which use the published RFC 3678 APIs should be fine. 654 655 For systems administrators: 656 657 * The mtest(8) utility has been refactored to support IPv6, in 658 addition to IPv4. Interface addresses are no longer accepted 659 as arguments, their names must be used instead. The utility 660 will map the interface name to its first IPv4 address as 661 returned by getifaddrs(3). 662 663 * The ifmcstat(8) utility has also been updated to print the MLDv2 664 endpoint state and source filter lists via sysctl(3). 665 666 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 667 loopback of IPv6 multicast datagrams by default; it defaults to 1 668 to preserve the existing behaviour. Disabling multicast loopback is 669 recommended for optimal system performance. 670 671 * The IPv6 MROUTING code has been changed to examine this sysctl 672 instead of attempting to perform a group lookup before looping 673 back forwarded datagrams. 674 675 Bump __FreeBSD_version to 800084. 676 67720090422: 678 Implement low-level Bluetooth HCI API. 679 Bump __FreeBSD_version to 800083. 680 68120090419: 682 The layout of struct malloc_type, used by modules to register new 683 memory allocation types, has changed. Most modules will need to 684 be rebuilt or panics may be experienced. 685 Bump __FreeBSD_version to 800081. 686 68720090415: 688 Anticipate overflowing inp_flags - add inp_flags2. 689 This changes most offsets in inpcb, so checking v4 connection 690 state will require a world rebuild. 691 Bump __FreeBSD_version to 800080. 692 69320090415: 694 Add an llentry to struct route and struct route_in6. Modules 695 embedding a struct route will need to be recompiled. 696 Bump __FreeBSD_version to 800079. 697 69820090414: 699 The size of rt_metrics_lite and by extension rtentry has changed. 700 Networking administration apps will need to be recompiled. 701 The route command now supports show as an alias for get, weighting 702 of routes, sticky and nostick flags to alter the behavior of stateful 703 load balancing. 704 Bump __FreeBSD_version to 800078. 705 70620090408: 707 Do not use Giant for kbdmux(4) locking. This is wrong and 708 apparently causing more problems than it solves. This will 709 re-open the issue where interrupt handlers may race with 710 kbdmux(4) in polling mode. Typical symptoms include (but 711 not limited to) duplicated and/or missing characters when 712 low level console functions (such as gets) are used while 713 interrupts are enabled (for example geli password prompt, 714 mountroot prompt etc.). Disabling kbdmux(4) may help. 715 71620090407: 717 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 718 kernel modules referencing any of the above need to be recompiled. 719 Bump __FreeBSD_version to 800075. 720 72120090320: 722 GEOM_PART has become the default partition slicer for storage devices, 723 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 724 introduces some changes: 725 726 MSDOS/EBR: the devices created from MSDOS extended partition entries 727 (EBR) can be named differently than with GEOM_MBR and are now symlinks 728 to devices with offset-based names. fstabs may need to be modified. 729 730 BSD: the "geometry does not match label" warning is harmless in most 731 cases but it points to problems in file system misalignment with 732 disk geometry. The "c" partition is now implicit, covers the whole 733 top-level drive and cannot be (mis)used by users. 734 735 General: Kernel dumps are now not allowed to be written to devices 736 whose partition types indicate they are meant to be used for file 737 systems (or, in case of MSDOS partitions, as something else than 738 the "386BSD" type). 739 740 Most of these changes date approximately from 200812. 741 74220090319: 743 The uscanner(4) driver has been removed from the kernel. This follows 744 Linux removing theirs in 2.6 and making libusb the default interface 745 (supported by sane). 746 74720090319: 748 The multicast forwarding code has been cleaned up. netstat(1) 749 only relies on KVM now for printing bandwidth upcall meters. 750 The IPv4 and IPv6 modules are split into ip_mroute_mod and 751 ip6_mroute_mod respectively. The config(5) options for statically 752 compiling this code remain the same, i.e. 'options MROUTING'. 753 75420090315: 755 Support for the IFF_NEEDSGIANT network interface flag has been 756 removed, which means that non-MPSAFE network device drivers are no 757 longer supported. In particular, if_ar, if_sr, and network device 758 drivers from the old (legacy) USB stack can no longer be built or 759 used. 760 76120090313: 762 POSIX.1 Native Language Support (NLS) has been enabled in libc and 763 a bunch of new language catalog files have also been added. 764 This means that some common libc messages are now localized and 765 they depend on the LC_MESSAGES environmental variable. 766 76720090313: 768 The k8temp(4) driver has been renamed to amdtemp(4) since 769 support for Family 10 and Family 11 CPU families was added. 770 77120090309: 772 IGMPv3 and Source-Specific Multicast (SSM) have been merged 773 to the IPv4 stack. VIMAGE hooks are in but not yet used. 774 775 For kernel developers, the most important changes are that the 776 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 777 and this lock has been downgraded to a non-recursive mutex. 778 779 Transport protocols (UDP, Raw IP) are now responsible for filtering 780 inbound multicast traffic according to group membership and source 781 filters. The imo_multicast_filter() KPI exists for this purpose. 782 Transports which do not use multicast (SCTP, TCP) already reject 783 multicast by default. Forwarding and receive performance may improve 784 as a mutex acquisition is no longer needed in the ip_input() 785 low-level input path. in_addmulti() and in_delmulti() are shimmed 786 to new KPIs which exist to support SSM in-kernel. 787 788 For application developers, it is recommended that loopback of 789 multicast datagrams be disabled for best performance, as this 790 will still cause the lock to be taken for each looped-back 791 datagram transmission. The net.inet.ip.mcast.loop sysctl may 792 be tuned to 0 to disable loopback by default; it defaults to 1 793 to preserve the existing behaviour. 794 795 For systems administrators, to obtain best performance with 796 multicast reception and multiple groups, it is always recommended 797 that a card with a suitably precise hash filter is used. Hash 798 collisions will still result in the lock being taken within the 799 transport protocol input path to check group membership. 800 801 If deploying FreeBSD in an environment with IGMP snooping switches, 802 it is recommended that the net.inet.igmp.sendlocal sysctl remain 803 enabled; this forces 224.0.0.0/24 group membership to be announced 804 via IGMP. 805 806 The size of 'struct igmpstat' has changed; netstat needs to be 807 recompiled to reflect this. 808 Bump __FreeBSD_version to 800070. 809 81020090309: 811 libusb20.so.1 is now installed as libusb.so.1 and the ports system 812 updated to use it. This requires a buildworld/installworld in order to 813 update the library and dependencies (usbconfig, etc). Its advisable to 814 rebuild all ports which uses libusb. More specific directions are given 815 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 816 libusb are no longer required and can be removed. 817 81820090302: 819 A workaround is committed to allow the creation of System V shared 820 memory segment of size > 2 GB on the 64-bit architectures. 821 Due to a limitation of the existing ABI, the shm_segsz member 822 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 823 wrong for large segments. Note that limits must be explicitly 824 raised to allow such segments to be created. 825 82620090301: 827 The layout of struct ifnet has changed, requiring a rebuild of all 828 network device driver modules. 829 83020090227: 831 The /dev handling for the new USB stack has changed, a 832 buildworld/installworld is required for libusb20. 833 83420090223: 835 The new USB2 stack has now been permanently moved in and all kernel and 836 module names reverted to their previous values (eg, usb, ehci, ohci, 837 ums, ...). The old usb stack can be compiled in by prefixing the name 838 with the letter 'o', the old usb modules have been removed. 839 Updating entry 20090216 for xorg and 20090215 for libmap may still 840 apply. 841 84220090217: 843 The rc.conf(5) option if_up_delay has been renamed to 844 defaultroute_delay to better reflect its purpose. If you have 845 customized this setting in /etc/rc.conf you need to update it to 846 use the new name. 847 84820090216: 849 xorg 7.4 wants to configure its input devices via hald which does not 850 yet work with USB2. If the keyboard/mouse does not work in xorg then 851 add 852 Option "AllowEmptyInput" "off" 853 to your ServerLayout section. This will cause X to use the configured 854 kbd and mouse sections from your xorg.conf. 855 85620090215: 857 The GENERIC kernels for all architectures now default to the new USB2 858 stack. No kernel config options or code have been removed so if a 859 problem arises please report it and optionally revert to the old USB 860 stack. If you are loading USB kernel modules or have a custom kernel 861 that includes GENERIC then ensure that usb names are also changed over, 862 eg uftdi -> usb2_serial_ftdi. 863 864 Older programs linked against the ports libusb 0.1 need to be 865 redirected to the new stack's libusb20. /etc/libmap.conf can 866 be used for this: 867 # Map old usb library to new one for usb2 stack 868 libusb-0.1.so.8 libusb20.so.1 869 87020090209: 871 All USB ethernet devices now attach as interfaces under the name ueN 872 (eg. ue0). This is to provide a predictable name as vendors often 873 change usb chipsets in a product without notice. 874 87520090203: 876 The ichsmb(4) driver has been changed to require SMBus slave 877 addresses be left-justified (xxxxxxx0b) rather than right-justified. 878 All of the other SMBus controller drivers require left-justified 879 slave addresses, so this change makes all the drivers provide the 880 same interface. 881 88220090201: 883 INET6 statistics (struct ip6stat) was updated. 884 netstat(1) needs to be recompiled. 885 88620090119: 887 NTFS has been removed from GENERIC kernel on amd64 to match 888 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 889 will load ntfs.ko module automatically when NTFS support is 890 actually needed, unless ntfs.ko is not installed or security 891 level prohibits loading kernel modules. If either is the case, 892 "options NTFS" has to be added into kernel config. 893 89420090115: 895 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 896 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 897 800061. User space tools that rely on the size of struct tcpcb in 898 tcp_var.h (e.g. sockstat) need to be recompiled. 899 90020081225: 901 ng_tty(4) module updated to match the new TTY subsystem. 902 Due to API change, user-level applications must be updated. 903 New API support added to mpd5 CVS and expected to be present 904 in next mpd5.3 release. 905 90620081219: 907 With __FreeBSD_version 800060 the makefs tool is part of 908 the base system (it was a port). 909 91020081216: 911 The afdata and ifnet locks have been changed from mutexes to 912 rwlocks, network modules will need to be re-compiled. 913 91420081214: 915 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 916 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 917 The new code reduced struct rtentry{} by 16 bytes on 32-bit 918 architecture and 40 bytes on 64-bit architecture. The userland 919 applications "arp" and "ndp" have been updated accordingly. 920 The output from "netstat -r" shows only routing entries and 921 none of the L2 information. 922 92320081130: 924 __FreeBSD_version 800057 marks the switchover from the 925 binary ath hal to source code. Users must add the line: 926 927 options AH_SUPPORT_AR5416 928 929 to their kernel config files when specifying: 930 931 device ath_hal 932 933 The ath_hal module no longer exists; the code is now compiled 934 together with the driver in the ath module. It is now 935 possible to tailor chip support (i.e. reduce the set of chips 936 and thereby the code size); consult ath_hal(4) for details. 937 93820081121: 939 __FreeBSD_version 800054 adds memory barriers to 940 <machine/atomic.h>, new interfaces to ifnet to facilitate 941 multiple hardware transmit queues for cards that support 942 them, and a lock-less ring-buffer implementation to 943 enable drivers to more efficiently manage queueing of 944 packets. 945 94620081117: 947 A new version of ZFS (version 13) has been merged to -HEAD. 948 This version has zpool attribute "listsnapshots" off by 949 default, which means "zfs list" does not show snapshots, 950 and is the same as Solaris behavior. 951 95220081028: 953 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 954 95520081009: 956 The uhci, ohci, ehci and slhci USB Host controller drivers have 957 been put into separate modules. If you load the usb module 958 separately through loader.conf you will need to load the 959 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 960 controller add the following to loader.conf: 961 962 uhci_load="YES" 963 ehci_load="YES" 964 96520081009: 966 The ABI used by the PMC toolset has changed. Please keep 967 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 968 sync. 969 97020081009: 971 atapci kernel module now includes only generic PCI ATA 972 driver. AHCI driver moved to ataahci kernel module. 973 All vendor-specific code moved into separate kernel modules: 974 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 975 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 976 atamarvell, atamicron, atanational, atanetcell, atanvidia, 977 atapromise, ataserverworks, atasiliconimage, atasis, atavia 978 97920080820: 980 The TTY subsystem of the kernel has been replaced by a new 981 implementation, which provides better scalability and an 982 improved driver model. Most common drivers have been migrated to 983 the new TTY subsystem, while others have not. The following 984 drivers have not yet been ported to the new TTY layer: 985 986 PCI/ISA: 987 cy, digi, rc, rp, sio 988 989 USB: 990 ubser, ucycom 991 992 Line disciplines: 993 ng_h4, ng_tty, ppp, sl, snp 994 995 Adding these drivers to your kernel configuration file shall 996 cause compilation to fail. 997 99820080818: 999 ntpd has been upgraded to 4.2.4p5. 1000 100120080801: 1002 OpenSSH has been upgraded to 5.1p1. 1003 1004 For many years, FreeBSD's version of OpenSSH preferred DSA 1005 over RSA for host and user authentication keys. With this 1006 upgrade, we've switched to the vendor's default of RSA over 1007 DSA. This may cause upgraded clients to warn about unknown 1008 host keys even for previously known hosts. Users should 1009 follow the usual procedure for verifying host keys before 1010 accepting the RSA key. 1011 1012 This can be circumvented by setting the "HostKeyAlgorithms" 1013 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1014 command line. 1015 1016 Please note that the sequence of keys offered for 1017 authentication has been changed as well. You may want to 1018 specify IdentityFile in a different order to revert this 1019 behavior. 1020 102120080713: 1022 The sio(4) driver has been removed from the i386 and amd64 1023 kernel configuration files. This means uart(4) is now the 1024 default serial port driver on those platforms as well. 1025 1026 To prevent collisions with the sio(4) driver, the uart(4) driver 1027 uses different names for its device nodes. This means the 1028 onboard serial port will now most likely be called "ttyu0" 1029 instead of "ttyd0". You may need to reconfigure applications to 1030 use the new device names. 1031 1032 When using the serial port as a boot console, be sure to update 1033 /boot/device.hints and /etc/ttys before booting the new kernel. 1034 If you forget to do so, you can still manually specify the hints 1035 at the loader prompt: 1036 1037 set hint.uart.0.at="isa" 1038 set hint.uart.0.port="0x3F8" 1039 set hint.uart.0.flags="0x10" 1040 set hint.uart.0.irq="4" 1041 boot -s 1042 104320080609: 1044 The gpt(8) utility has been removed. Use gpart(8) to partition 1045 disks instead. 1046 104720080603: 1048 The version that Linuxulator emulates was changed from 2.4.2 1049 to 2.6.16. If you experience any problems with Linux binaries 1050 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1051 if it fixes the problem contact emulation mailing list. 1052 105320080525: 1054 ISDN4BSD (I4B) was removed from the src tree. You may need to 1055 update a your kernel configuration and remove relevant entries. 1056 105720080509: 1058 I have checked in code to support multiple routing tables. 1059 See the man pages setfib(1) and setfib(2). 1060 This is a hopefully backwards compatible version, 1061 but to make use of it you need to compile your kernel 1062 with options ROUTETABLES=2 (or more up to 16). 1063 106420080420: 1065 The 802.11 wireless support was redone to enable multi-bss 1066 operation on devices that are capable. The underlying device 1067 is no longer used directly but instead wlanX devices are 1068 cloned with ifconfig. This requires changes to rc.conf files. 1069 For example, change: 1070 ifconfig_ath0="WPA DHCP" 1071 to 1072 wlans_ath0=wlan0 1073 ifconfig_wlan0="WPA DHCP" 1074 see rc.conf(5) for more details. In addition, mergemaster of 1075 /etc/rc.d is highly recommended. Simultaneous update of userland 1076 and kernel wouldn't hurt either. 1077 1078 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1079 modules were merged into the base wlan module. All references 1080 to these modules (e.g. in kernel config files) must be removed. 1081 108220080408: 1083 psm(4) has gained write(2) support in native operation level. 1084 Arbitrary commands can be written to /dev/psm%d and status can 1085 be read back from it. Therefore, an application is responsible 1086 for status validation and error recovery. It is a no-op in 1087 other operation levels. 1088 108920080312: 1090 Support for KSE threading has been removed from the kernel. To 1091 run legacy applications linked against KSE libmap.conf may 1092 be used. The following libmap.conf may be used to ensure 1093 compatibility with any prior release: 1094 1095 libpthread.so.1 libthr.so.1 1096 libpthread.so.2 libthr.so.2 1097 libkse.so.3 libthr.so.3 1098 109920080301: 1100 The layout of struct vmspace has changed. This affects libkvm 1101 and any executables that link against libkvm and use the 1102 kvm_getprocs() function. In particular, but not exclusively, 1103 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1104 The effects are minimal, but it's advisable to upgrade world 1105 nonetheless. 1106 110720080229: 1108 The latest em driver no longer has support in it for the 1109 82575 adapter, this is now moved to the igb driver. The 1110 split was done to make new features that are incompatible 1111 with older hardware easier to do. 1112 111320080220: 1114 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1115 likewise the kernel option is now GEOM_LINUX_LVM. 1116 111720080211: 1118 The default NFS mount mode has changed from UDP to TCP for 1119 increased reliability. If you rely on (insecurely) NFS 1120 mounting across a firewall you may need to update your 1121 firewall rules. 1122 112320080208: 1124 Belatedly note the addition of m_collapse for compacting 1125 mbuf chains. 1126 112720080126: 1128 The fts(3) structures have been changed to use adequate 1129 integer types for their members and so to be able to cope 1130 with huge file trees. The old fts(3) ABI is preserved 1131 through symbol versioning in libc, so third-party binaries 1132 using fts(3) should still work, although they will not take 1133 advantage of the extended types. At the same time, some 1134 third-party software might fail to build after this change 1135 due to unportable assumptions made in its source code about 1136 fts(3) structure members. Such software should be fixed 1137 by its vendor or, in the worst case, in the ports tree. 1138 FreeBSD_version 800015 marks this change for the unlikely 1139 case that a portable fix is impossible. 1140 114120080123: 1142 To upgrade to -current after this date, you must be running 1143 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1144 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1145 114620071128: 1147 The ADAPTIVE_GIANT kernel option has been retired because its 1148 functionality is the default now. 1149 115020071118: 1151 The AT keyboard emulation of sunkbd(4) has been turned on 1152 by default. In order to make the special symbols of the Sun 1153 keyboards driven by sunkbd(4) work under X these now have 1154 to be configured the same way as Sun USB keyboards driven 1155 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1156 1157 Option "XkbLayout" "us" 1158 Option "XkbRules" "xorg" 1159 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1160 116120071024: 1162 It has been decided that it is desirable to provide ABI 1163 backwards compatibility to the FreeBSD 4/5/6 versions of the 1164 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1165 broken with the introduction of PCI domain support (see the 1166 20070930 entry). Unfortunately, this required the ABI of 1167 PCIOCGETCONF to be broken again in order to be able to 1168 provide backwards compatibility to the old version of that 1169 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1170 again. As for prominent ports this affects neither pciutils 1171 nor xorg-server this time, the hal port needs to be rebuilt 1172 however. 1173 117420071020: 1175 The misnamed kthread_create() and friends have been renamed 1176 to kproc_create() etc. Many of the callers already 1177 used kproc_start().. 1178 I will return kthread_create() and friends in a while 1179 with implementations that actually create threads, not procs. 1180 Renaming corresponds with version 800002. 1181 118220071010: 1183 RELENG_7 branched. 1184 1185COMMON ITEMS: 1186 1187 General Notes 1188 ------------- 1189 Avoid using make -j when upgrading. While generally safe, there are 1190 sometimes problems using -j to upgrade. If your upgrade fails with 1191 -j, please try again without -j. From time to time in the past there 1192 have been problems using -j with buildworld and/or installworld. This 1193 is especially true when upgrading between "distant" versions (eg one 1194 that cross a major release boundary or several minor releases, or when 1195 several months have passed on the -current branch). 1196 1197 Sometimes, obscure build problems are the result of environment 1198 poisoning. This can happen because the make utility reads its 1199 environment when searching for values for global variables. To run 1200 your build attempts in an "environmental clean room", prefix all make 1201 commands with 'env -i '. See the env(1) manual page for more details. 1202 1203 When upgrading from one major version to another it is generally best 1204 to upgrade to the latest code in the currently installed branch first, 1205 then do an upgrade to the new branch. This is the best-tested upgrade 1206 path, and has the highest probability of being successful. Please try 1207 this approach before reporting problems with a major version upgrade. 1208 1209 ZFS notes 1210 --------- 1211 When upgrading the boot ZFS pool to a new version, always follow 1212 these two steps: 1213 1214 1.) recompile and reinstall the ZFS boot loader and boot block 1215 (this is part of "make buildworld" and "make installworld") 1216 1217 2.) update the ZFS boot block on your boot drive 1218 1219 The following example updates the ZFS boot block on the first 1220 partition (freebsd-boot) of a GPT partitioned drive ad0: 1221 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1222 1223 Non-boot pools do not need these updates. 1224 1225 To build a kernel 1226 ----------------- 1227 If you are updating from a prior version of FreeBSD (even one just 1228 a few days old), you should follow this procedure. It is the most 1229 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1230 1231 make kernel-toolchain 1232 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1233 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1234 1235 To test a kernel once 1236 --------------------- 1237 If you just want to boot a kernel once (because you are not sure 1238 if it works, or if you want to boot a known bad kernel to provide 1239 debugging information) run 1240 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1241 nextboot -k testkernel 1242 1243 To just build a kernel when you know that it won't mess you up 1244 -------------------------------------------------------------- 1245 This assumes you are already running a CURRENT system. Replace 1246 ${arch} with the architecture of your machine (e.g. "i386", 1247 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1248 1249 cd src/sys/${arch}/conf 1250 config KERNEL_NAME_HERE 1251 cd ../compile/KERNEL_NAME_HERE 1252 make depend 1253 make 1254 make install 1255 1256 If this fails, go to the "To build a kernel" section. 1257 1258 To rebuild everything and install it on the current system. 1259 ----------------------------------------------------------- 1260 # Note: sometimes if you are running current you gotta do more than 1261 # is listed here if you are upgrading from a really old current. 1262 1263 <make sure you have good level 0 dumps> 1264 make buildworld 1265 make kernel KERNCONF=YOUR_KERNEL_HERE 1266 [1] 1267 <reboot in single user> [3] 1268 mergemaster -p [5] 1269 make installworld 1270 mergemaster -i [4] 1271 make delete-old [6] 1272 <reboot> 1273 1274 1275 To cross-install current onto a separate partition 1276 -------------------------------------------------- 1277 # In this approach we use a separate partition to hold 1278 # current's root, 'usr', and 'var' directories. A partition 1279 # holding "/", "/usr" and "/var" should be about 2GB in 1280 # size. 1281 1282 <make sure you have good level 0 dumps> 1283 <boot into -stable> 1284 make buildworld 1285 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1286 <maybe newfs current's root partition> 1287 <mount current's root partition on directory ${CURRENT_ROOT}> 1288 make installworld DESTDIR=${CURRENT_ROOT} 1289 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1290 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1291 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1292 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1293 <reboot into current> 1294 <do a "native" rebuild/install as described in the previous section> 1295 <maybe install compatibility libraries from ports/misc/compat*> 1296 <reboot> 1297 1298 1299 To upgrade in-place from 8.x-stable to current 1300 ---------------------------------------------- 1301 <make sure you have good level 0 dumps> 1302 make buildworld [9] 1303 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1304 [1] 1305 <reboot in single user> [3] 1306 mergemaster -p [5] 1307 make installworld 1308 mergemaster -i [4] 1309 make delete-old [6] 1310 <reboot> 1311 1312 Make sure that you've read the UPDATING file to understand the 1313 tweaks to various things you need. At this point in the life 1314 cycle of current, things change often and you are on your own 1315 to cope. The defaults can also change, so please read ALL of 1316 the UPDATING entries. 1317 1318 Also, if you are tracking -current, you must be subscribed to 1319 freebsd-current@freebsd.org. Make sure that before you update 1320 your sources that you have read and understood all the recent 1321 messages there. If in doubt, please track -stable which has 1322 much fewer pitfalls. 1323 1324 [1] If you have third party modules, such as vmware, you 1325 should disable them at this point so they don't crash your 1326 system on reboot. 1327 1328 [3] From the bootblocks, boot -s, and then do 1329 fsck -p 1330 mount -u / 1331 mount -a 1332 cd src 1333 adjkerntz -i # if CMOS is wall time 1334 Also, when doing a major release upgrade, it is required that 1335 you boot into single user mode to do the installworld. 1336 1337 [4] Note: This step is non-optional. Failure to do this step 1338 can result in a significant reduction in the functionality of the 1339 system. Attempting to do it by hand is not recommended and those 1340 that pursue this avenue should read this file carefully, as well 1341 as the archives of freebsd-current and freebsd-hackers mailing lists 1342 for potential gotchas. The -U option is also useful to consider. 1343 See mergemaster(8) for more information. 1344 1345 [5] Usually this step is a noop. However, from time to time 1346 you may need to do this if you get unknown user in the following 1347 step. It never hurts to do it all the time. You may need to 1348 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1349 install) after the buildworld before this step if you last updated 1350 from current before 20020224 or from -stable before 20020408. 1351 1352 [6] This only deletes old files and directories. Old libraries 1353 can be deleted by "make delete-old-libs", but you have to make 1354 sure that no program is using those libraries anymore. 1355 1356 [8] In order to have a kernel that can run the 4.x binaries needed to 1357 do an installworld, you must include the COMPAT_FREEBSD4 option in 1358 your kernel. Failure to do so may leave you with a system that is 1359 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1360 required to run the 5.x binaries on more recent kernels. And so on 1361 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1362 1363 Make sure that you merge any new devices from GENERIC since the 1364 last time you updated your kernel config file. 1365 1366 [9] When checking out sources, you must include the -P flag to have 1367 cvs prune empty directories. 1368 1369 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1370 "?=" instead of the "=" assignment operator, so that buildworld can 1371 override the CPUTYPE if it needs to. 1372 1373 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1374 not on the command line, or in /etc/make.conf. buildworld will 1375 warn if it is improperly defined. 1376FORMAT: 1377 1378This file contains a list, in reverse chronological order, of major 1379breakages in tracking -current. Not all things will be listed here, 1380and it only starts on October 16, 2004. Updating files can found in 1381previous releases if your system is older than this. 1382 1383Copyright information: 1384 1385Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1386 1387Redistribution, publication, translation and use, with or without 1388modification, in full or in part, in any form or format of this 1389document are permitted without further permission from the author. 1390 1391THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1392IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1393WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1394DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1395INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1396(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1397SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1398HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1399STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1400IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1401POSSIBILITY OF SUCH DAMAGE. 1402 1403Contact Warner Losh if you have any questions about your use of 1404this document. 1405 1406$FreeBSD: head/UPDATING 221114 2011-04-27 08:53:52Z mav $ 1407