UPDATING revision 193093
1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh 4<imp@village.org>. See end of file for further details. For commonly 5done items, please see the COMMON ITEMS: section later in the file. 6 7Items affecting the ports and packages system can be found in 8/usr/ports/UPDATING. Please read that file before running 9portupgrade. 10 11NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW: 12 FreeBSD 8.x has many debugging features turned on, in 13 both the kernel and userland. These features attempt to detect 14 incorrect use of system primitives, and encourage loud failure 15 through extra sanity checking and fail stop semantics. They 16 also substantially impact system performance. If you want to 17 do performance measurement, benchmarking, and optimization, 18 you'll want to turn them off. This includes various WITNESS- 19 related kernel options, INVARIANTS, malloc debugging flags 20 in userland, and various verbose features in the kernel. Many 21 developers choose to disable these features on build machines 22 to maximize performance. (To disable malloc debugging, run 23 ln -s aj /etc/malloc.conf.) 24 2520090530: 26 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 27 Bump __FreeBSD_version to 800094. 28 2920090529: 30 Add mnt_xflag field to 'struct mount'. File system modules 31 need to be rebuilt. 32 Bump __FreeBSD_version to 800093. 33 3420090528: 35 The compiling option ADAPTIVE_SX has been retired while it has been 36 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 37 The KPI for sx_init_flags() changes as accepting flags: 38 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 39 has been introduced in order to handle the reversed logic. 40 Bump __FreeBSD_version to 800092. 41 4220090527: 43 Add support for hierarchical jails. Remove global securelevel. 44 Bump __FreeBSD_version to 800091. 45 4620090523: 47 The layout of struct vnet_net has changed, therefore modules 48 need to be rebuilt. 49 Bump __FreeBSD_version to 800090. 50 5120090523: 52 The newly imported zic(8) produces a new format in the 53 output. Please run tzsetup(8) to install the newly created 54 data to /etc/localtime. 55 5620090520: 57 The sysctl tree for the usb stack has renamed from hw.usb2.* to 58 hw.usb.* and is now consistent again with previous releases. 59 6020090520: 61 802.11 monitor mode support was revised and driver api's 62 were changed. Drivers dependent on net80211 now support 63 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 64 user-visible data structures were changed but applications 65 that use DLT_IEEE802_11 may require changes. 66 Bump __FreeBSD_version to 800088. 67 6820090430: 69 The layout of the following structs has changed: sysctl_oid, 70 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 71 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 72 panics may be experienced. World rebuild is required for 73 correctly checking networking state from userland. 74 Bump __FreeBSD_version to 800085. 75 7620090429: 77 MLDv2 and Source-Specific Multicast (SSM) have been merged 78 to the IPv6 stack. VIMAGE hooks are in but not yet used. 79 The implementation of SSM within FreeBSD's IPv6 stack closely 80 follows the IPv4 implementation. 81 82 For kernel developers: 83 84 * The most important changes are that the ip6_output() and 85 ip6_input() paths no longer take the IN6_MULTI_LOCK, 86 and this lock has been downgraded to a non-recursive mutex. 87 88 * As with the changes to the IPv4 stack to support SSM, filtering 89 of inbound multicast traffic must now be performed by transport 90 protocols within the IPv6 stack. This does not apply to TCP and 91 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 92 93 * The KPIs used by IPv6 multicast are similar to those used by 94 the IPv4 stack, with the following differences: 95 * im6o_mc_filter() is analogous to imo_multicast_filter(). 96 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 97 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 98 * IN6_LOOKUP_MULTI() has been deprecated and removed. 99 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 100 for MLDv1 have an additional 'timer' argument which is used to 101 jitter the initial membership report for the solicited-node 102 multicast membership on-link. 103 * This is not strictly needed for MLDv2, which already jitters 104 its report transmissions. However, the 'timer' argument is 105 preserved in case MLDv1 is active on the interface. 106 107 * The KAME linked-list based IPv6 membership implementation has 108 been refactored to use a vector similar to that used by the IPv4 109 stack. 110 Code which maintains a list of its own multicast memberships 111 internally, e.g. carp, has been updated to reflect the new 112 semantics. 113 114 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 115 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 116 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 117 implementation constraint which needs to be addressed in HEAD. 118 119 For application developers: 120 121 * The changes are broadly similar to those made for the IPv4 122 stack. 123 124 * The use of IPv4 and IPv6 multicast socket options on the same 125 socket, using mapped addresses, HAS NOT been tested or supported. 126 127 * There are a number of issues with the implementation of various 128 IPv6 multicast APIs which need to be resolved in the API surface 129 before the implementation is fully compatible with KAME userland 130 use, and these are mostly to do with interface index treatment. 131 132 * The literature available discusses the use of either the delta / ASM 133 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 134 using setsourcefilter(3)/getsourcefilter(3). For more information 135 please refer to RFC 3768, 'Socket Interface Extensions for 136 Multicast Source Filters'. 137 138 * Applications which use the published RFC 3678 APIs should be fine. 139 140 For systems administrators: 141 142 * The mtest(8) utility has been refactored to support IPv6, in 143 addition to IPv4. Interface addresses are no longer accepted 144 as arguments, their names must be used instead. The utility 145 will map the interface name to its first IPv4 address as 146 returned by getifaddrs(3). 147 148 * The ifmcstat(8) utility has also been updated to print the MLDv2 149 endpoint state and source filter lists via sysctl(3). 150 151 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 152 loopback of IPv6 multicast datagrams by default; it defaults to 1 153 to preserve the existing behaviour. Disabling multicast loopback is 154 recommended for optimal system performance. 155 156 * The IPv6 MROUTING code has been changed to examine this sysctl 157 instead of attempting to perform a group lookup before looping 158 back forwarded datagrams. 159 160 Bump __FreeBSD_version to 800084. 161 16220090422: 163 Implement low-level Bluetooth HCI API. 164 Bump __FreeBSD_version to 800083. 165 16620090419: 167 The layout of struct malloc_type, used by modules to register new 168 memory allocation types, has changed. Most modules will need to 169 be rebuilt or panics may be experienced. 170 Bump __FreeBSD_version to 800081. 171 17220090415: 173 Anticipate overflowing inp_flags - add inp_flags2. 174 This changes most offsets in inpcb, so checking v4 connection 175 state will require a world rebuild. 176 Bump __FreeBSD_version to 800080. 177 17820090415: 179 Add an llentry to struct route and struct route_in6. Modules 180 embedding a struct route will need to be recompiled. 181 Bump __FreeBSD_version to 800079. 182 18320090414: 184 The size of rt_metrics_lite and by extension rtentry has changed. 185 Networking administration apps will need to be recompiled. 186 The route command now supports show as an alias for get, weighting 187 of routes, sticky and nostick flags to alter the behavior of stateful 188 load balancing. 189 Bump __FreeBSD_version to 800078. 190 19120090408: 192 Do not use Giant for kbdmux(4) locking. This is wrong and 193 apparently causing more problems than it solves. This will 194 re-open the issue where interrupt handlers may race with 195 kbdmux(4) in polling mode. Typical symptoms include (but 196 not limited to) duplicated and/or missing characters when 197 low level console functions (such as gets) are used while 198 interrupts are enabled (for example geli password prompt, 199 mountroot prompt etc.). Disabling kbdmux(4) may help. 200 20120090407: 202 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 203 kernel modules referencing any of the above need to be recompiled. 204 Bump __FreeBSD_version to 800075. 205 20620090320: 207 GEOM_PART has become the default partition slicer for storage devices, 208 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 209 introduces some changes: 210 211 MSDOS/EBR: the devices created from MSDOS extended partition entries 212 (EBR) can be named differently than with GEOM_MBR and are now symlinks 213 to devices with offset-based names. fstabs may need to be modified. 214 215 BSD: the "geometry does not match label" warning is harmless in most 216 cases but it points to problems in file system misalignment with 217 disk geometry. The "c" partition is now implicit, covers the whole 218 top-level drive and cannot be (mis)used by users. 219 220 General: Kernel dumps are now not allowed to be written to devices 221 whose partition types indicate they are meant to be used for file 222 systems (or, in case of MSDOS partitions, as something else than 223 the "386BSD" type). 224 225 Most of these changes date approximately from 200812. 226 22720090319: 228 The uscanner(4) driver has been removed from the kernel. This follows 229 Linux removing theirs in 2.6 and making libusb the default interface 230 (supported by sane). 231 23220090319: 233 The multicast forwarding code has been cleaned up. netstat(1) 234 only relies on KVM now for printing bandwidth upcall meters. 235 The IPv4 and IPv6 modules are split into ip_mroute_mod and 236 ip6_mroute_mod respectively. The config(5) options for statically 237 compiling this code remain the same, i.e. 'options MROUTING'. 238 23920090315: 240 Support for the IFF_NEEDSGIANT network interface flag has been 241 removed, which means that non-MPSAFE network device drivers are no 242 longer supported. In particular, if_ar, if_sr, and network device 243 drivers from the old (legacy) USB stack can no longer be built or 244 used. 245 24620090313: 247 POSIX.1 Native Language Support (NLS) has been enabled in libc and 248 a bunch of new language catalog files have also been added. 249 This means that some common libc messages are now localized and 250 they depend on the LC_MESSAGES environmental variable. 251 25220090313: 253 The k8temp(4) driver has been renamed to amdtemp(4) since 254 support for K10 and K11 CPU families was added. 255 25620090309: 257 IGMPv3 and Source-Specific Multicast (SSM) have been merged 258 to the IPv4 stack. VIMAGE hooks are in but not yet used. 259 260 For kernel developers, the most important changes are that the 261 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 262 and this lock has been downgraded to a non-recursive mutex. 263 264 Transport protocols (UDP, Raw IP) are now responsible for filtering 265 inbound multicast traffic according to group membership and source 266 filters. The imo_multicast_filter() KPI exists for this purpose. 267 Transports which do not use multicast (SCTP, TCP) already reject 268 multicast by default. Forwarding and receive performance may improve 269 as a mutex acquisition is no longer needed in the ip_input() 270 low-level input path. in_addmulti() and in_delmulti() are shimmed 271 to new KPIs which exist to support SSM in-kernel. 272 273 For application developers, it is recommended that loopback of 274 multicast datagrams be disabled for best performance, as this 275 will still cause the lock to be taken for each looped-back 276 datagram transmission. The net.inet.ip.mcast.loop sysctl may 277 be tuned to 0 to disable loopback by default; it defaults to 1 278 to preserve the existing behaviour. 279 280 For systems administrators, to obtain best performance with 281 multicast reception and multiple groups, it is always recommended 282 that a card with a suitably precise hash filter is used. Hash 283 collisions will still result in the lock being taken within the 284 transport protocol input path to check group membership. 285 286 If deploying FreeBSD in an environment with IGMP snooping switches, 287 it is recommended that the net.inet.igmp.sendlocal sysctl remain 288 enabled; this forces 224.0.0.0/24 group membership to be announced 289 via IGMP. 290 291 The size of 'struct igmpstat' has changed; netstat needs to be 292 recompiled to reflect this. 293 Bump __FreeBSD_version to 800070. 294 29520090309: 296 libusb20.so.1 is now installed as libusb.so.1 and the ports system 297 updated to use it. This requires a buildworld/installworld in order to 298 update the library and dependencies (usbconfig, etc). Its advisable to 299 rebuild all ports which uses libusb. More specific directions are given 300 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 301 libusb are no longer required and can be removed. 302 30320090302: 304 A workaround is committed to allow the creation of System V shared 305 memory segment of size > 2 GB on the 64-bit architectures. 306 Due to a limitation of the existing ABI, the shm_segsz member 307 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 308 wrong for large segments. Note that limits must be explicitly 309 raised to allow such segments to be created. 310 31120090301: 312 The layout of struct ifnet has changed, requiring a rebuild of all 313 network device driver modules. 314 31520090227: 316 The /dev handling for the new USB stack has changed, a 317 buildworld/installworld is required for libusb20. 318 31920090223: 320 The new USB2 stack has now been permanently moved in and all kernel and 321 module names reverted to their previous values (eg, usb, ehci, ohci, 322 ums, ...). The old usb stack can be compiled in by prefixing the name 323 with the letter 'o', the old usb modules have been removed. 324 Updating entry 20090216 for xorg and 20090215 for libmap may still 325 apply. 326 32720090217: 328 The rc.conf(5) option if_up_delay has been renamed to 329 defaultroute_delay to better reflect its purpose. If you have 330 customized this setting in /etc/rc.conf you need to update it to 331 use the new name. 332 33320090216: 334 xorg 7.4 wants to configure its input devices via hald which does not 335 yet work with USB2. If the keyboard/mouse does not work in xorg then 336 add 337 Option "AllowEmptyInput" "off" 338 to your ServerLayout section. This will cause X to use the configured 339 kbd and mouse sections from your xorg.conf. 340 34120090215: 342 The GENERIC kernels for all architectures now default to the new USB2 343 stack. No kernel config options or code have been removed so if a 344 problem arises please report it and optionally revert to the old USB 345 stack. If you are loading USB kernel modules or have a custom kernel 346 that includes GENERIC then ensure that usb names are also changed over, 347 eg uftdi -> usb2_serial_ftdi. 348 349 Older programs linked against the ports libusb 0.1 need to be 350 redirected to the new stack's libusb20. /etc/libmap.conf can 351 be used for this: 352 # Map old usb library to new one for usb2 stack 353 libusb-0.1.so.8 libusb20.so.1 354 35520090203: 356 The ichsmb(4) driver has been changed to require SMBus slave 357 addresses be left-justified (xxxxxxx0b) rather than right-justified. 358 All of the other SMBus controller drivers require left-justified 359 slave addresses, so this change makes all the drivers provide the 360 same interface. 361 36220090201: 363 INET6 statistics (struct ip6stat) was updated. 364 netstat(1) needs to be recompiled. 365 36620090119: 367 NTFS has been removed from GENERIC kernel on amd64 to match 368 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 369 will load ntfs.ko module automatically when NTFS support is 370 actually needed, unless ntfs.ko is not installed or security 371 level prohibits loading kernel modules. If either is the case, 372 "options NTFS" has to be added into kernel config. 373 37420090115: 375 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 376 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 377 800061. User space tools that rely on the size of struct tcpcb in 378 tcp_var.h (e.g. sockstat) need to be recompiled. 379 38020081225: 381 ng_tty(4) module updated to match the new TTY subsystem. 382 Due to API change, user-level applications must be updated. 383 New API support added to mpd5 CVS and expected to be present 384 in next mpd5.3 release. 385 38620081219: 387 With __FreeBSD_version 800060 the makefs tool is part of 388 the base system (it was a port). 389 39020081216: 391 The afdata and ifnet locks have been changed from mutexes to 392 rwlocks, network modules will need to be re-compiled. 393 39420081214: 395 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 396 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 397 The new code reduced struct rtentry{} by 16 bytes on 32-bit 398 architecture and 40 bytes on 64-bit architecture. The userland 399 applications "arp" and "ndp" have been updated accordingly. 400 The output from "netstat -r" shows only routing entries and 401 none of the L2 information. 402 40320081130: 404 __FreeBSD_version 800057 marks the switchover from the 405 binary ath hal to source code. Users must add the line: 406 407 options AH_SUPPORT_AR5416 408 409 to their kernel config files when specifying: 410 411 device ath_hal 412 413 The ath_hal module no longer exists; the code is now compiled 414 together with the driver in the ath module. It is now 415 possible to tailor chip support (i.e. reduce the set of chips 416 and thereby the code size); consult ath_hal(4) for details. 417 41820081121: 419 __FreeBSD_version 800054 adds memory barriers to 420 <machine/atomic.h>, new interfaces to ifnet to facilitate 421 multiple hardware transmit queues for cards that support 422 them, and a lock-less ring-buffer implementation to 423 enable drivers to more efficiently manage queueing of 424 packets. 425 42620081117: 427 A new version of ZFS (version 13) has been merged to -HEAD. 428 This version has zpool attribute "listsnapshots" off by 429 default, which means "zfs list" does not show snapshots, 430 and is the same as Solaris behavior. 431 43220081028: 433 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 434 43520081009: 436 The uhci, ohci, ehci and slhci USB Host controller drivers have 437 been put into separate modules. If you load the usb module 438 separately through loader.conf you will need to load the 439 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 440 controller add the following to loader.conf: 441 442 uhci_load="YES" 443 ehci_load="YES" 444 44520081009: 446 The ABI used by the PMC toolset has changed. Please keep 447 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 448 sync. 449 45020080820: 451 The TTY subsystem of the kernel has been replaced by a new 452 implementation, which provides better scalability and an 453 improved driver model. Most common drivers have been migrated to 454 the new TTY subsystem, while others have not. The following 455 drivers have not yet been ported to the new TTY layer: 456 457 PCI/ISA: 458 cy, digi, rc, rp, sio 459 460 USB: 461 ubser, ucycom 462 463 Line disciplines: 464 ng_h4, ng_tty, ppp, sl, snp 465 466 Adding these drivers to your kernel configuration file shall 467 cause compilation to fail. 468 46920080818: 470 ntpd has been upgraded to 4.2.4p5. 471 47220080801: 473 OpenSSH has been upgraded to 5.1p1. 474 475 For many years, FreeBSD's version of OpenSSH preferred DSA 476 over RSA for host and user authentication keys. With this 477 upgrade, we've switched to the vendor's default of RSA over 478 DSA. This may cause upgraded clients to warn about unknown 479 host keys even for previously known hosts. Users should 480 follow the usual procedure for verifying host keys before 481 accepting the RSA key. 482 483 This can be circumvented by setting the "HostKeyAlgorithms" 484 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 485 command line. 486 487 Please note that the sequence of keys offered for 488 authentication has been changed as well. You may want to 489 specify IdentityFile in a different order to revert this 490 behavior. 491 49220080713: 493 The sio(4) driver has been removed from the i386 and amd64 494 kernel configuration files. This means uart(4) is now the 495 default serial port driver on those platforms as well. 496 497 To prevent collisions with the sio(4) driver, the uart(4) driver 498 uses different names for its device nodes. This means the 499 onboard serial port will now most likely be called "ttyu0" 500 instead of "ttyd0". You may need to reconfigure applications to 501 use the new device names. 502 503 When using the serial port as a boot console, be sure to update 504 /boot/device.hints and /etc/ttys before booting the new kernel. 505 If you forget to do so, you can still manually specify the hints 506 at the loader prompt: 507 508 set hint.uart.0.at="isa" 509 set hint.uart.0.port="0x3F8" 510 set hint.uart.0.flags="0x10" 511 set hint.uart.0.irq="4" 512 boot -s 513 51420080609: 515 The gpt(8) utility has been removed. Use gpart(8) to partition 516 disks instead. 517 51820080603: 519 The version that Linuxulator emulates was changed from 2.4.2 520 to 2.6.16. If you experience any problems with Linux binaries 521 please try to set sysctl compat.linux.osrelease to 2.4.2 and 522 if it fixes the problem contact emulation mailing list. 523 52420080525: 525 ISDN4BSD (I4B) was removed from the src tree. You may need to 526 update a your kernel configuration and remove relevant entries. 527 52820080509: 529 I have checked in code to support multiple routing tables. 530 See the man pages setfib(1) and setfib(2). 531 This is a hopefully backwards compatible version, 532 but to make use of it you need to compile your kernel 533 with options ROUTETABLES=2 (or more up to 16). 534 53520080420: 536 The 802.11 wireless support was redone to enable multi-bss 537 operation on devices that are capable. The underlying device 538 is no longer used directly but instead wlanX devices are 539 cloned with ifconfig. This requires changes to rc.conf files. 540 For example, change: 541 ifconfig_ath0="WPA DHCP" 542 to 543 wlans_ath0=wlan0 544 ifconfig_wlan0="WPA DHCP" 545 see rc.conf(5) for more details. In addition, mergemaster of 546 /etc/rc.d is highly recommended. Simultaneous update of userland 547 and kernel wouldn't hurt either. 548 549 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 550 modules were merged into the base wlan module. All references 551 to these modules (e.g. in kernel config files) must be removed. 552 55320080408: 554 psm(4) has gained write(2) support in native operation level. 555 Arbitrary commands can be written to /dev/psm%d and status can 556 be read back from it. Therefore, an application is responsible 557 for status validation and error recovery. It is a no-op in 558 other operation levels. 559 56020080312: 561 Support for KSE threading has been removed from the kernel. To 562 run legacy applications linked against KSE libmap.conf may 563 be used. The following libmap.conf may be used to ensure 564 compatibility with any prior release: 565 566 libpthread.so.1 libthr.so.1 567 libpthread.so.2 libthr.so.2 568 libkse.so.3 libthr.so.3 569 57020080301: 571 The layout of struct vmspace has changed. This affects libkvm 572 and any executables that link against libkvm and use the 573 kvm_getprocs() function. In particular, but not exclusively, 574 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 575 The effects are minimal, but it's advisable to upgrade world 576 nonetheless. 577 57820080229: 579 The latest em driver no longer has support in it for the 580 82575 adapter, this is now moved to the igb driver. The 581 split was done to make new features that are incompatible 582 with older hardware easier to do. 583 58420080220: 585 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 586 likewise the kernel option is now GEOM_LINUX_LVM. 587 58820080211: 589 The default NFS mount mode has changed from UDP to TCP for 590 increased reliability. If you rely on (insecurely) NFS 591 mounting across a firewall you may need to update your 592 firewall rules. 593 59420080208: 595 Belatedly note the addition of m_collapse for compacting 596 mbuf chains. 597 59820080126: 599 The fts(3) structures have been changed to use adequate 600 integer types for their members and so to be able to cope 601 with huge file trees. The old fts(3) ABI is preserved 602 through symbol versioning in libc, so third-party binaries 603 using fts(3) should still work, although they will not take 604 advantage of the extended types. At the same time, some 605 third-party software might fail to build after this change 606 due to unportable assumptions made in its source code about 607 fts(3) structure members. Such software should be fixed 608 by its vendor or, in the worst case, in the ports tree. 609 FreeBSD_version 800015 marks this change for the unlikely 610 case that a portable fix is impossible. 611 61220080123: 613 To upgrade to -current after this date, you must be running 614 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 615 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 616 61720071128: 618 The ADAPTIVE_GIANT kernel option has been retired because its 619 functionality is the default now. 620 62120071118: 622 The AT keyboard emulation of sunkbd(4) has been turned on 623 by default. In order to make the special symbols of the Sun 624 keyboards driven by sunkbd(4) work under X these now have 625 to be configured the same way as Sun USB keyboards driven 626 by ukbd(4) (which also does AT keyboard emulation), f.e.: 627 628 Option "XkbLayout" "us" 629 Option "XkbRules" "xorg" 630 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 631 63220071024: 633 It has been decided that it is desirable to provide ABI 634 backwards compatibility to the FreeBSD 4/5/6 versions of the 635 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 636 broken with the introduction of PCI domain support (see the 637 20070930 entry). Unfortunately, this required the ABI of 638 PCIOCGETCONF to be broken again in order to be able to 639 provide backwards compatibility to the old version of that 640 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 641 again. As for prominent ports this affects neither pciutils 642 nor xorg-server this time, the hal port needs to be rebuilt 643 however. 644 64520071020: 646 The misnamed kthread_create() and friends have been renamed 647 to kproc_create() etc. Many of the callers already 648 used kproc_start().. 649 I will return kthread_create() and friends in a while 650 with implementations that actually create threads, not procs. 651 Renaming corresponds with version 800002. 652 65320071010: 654 RELENG_7 branched. 655 65620071009: 657 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 658 WITHOUT_LIBTHR are set. 659 66020070930: 661 The PCI code has been made aware of PCI domains. This means that 662 the location strings as used by pciconf(8) etc are now in the 663 following format: pci<domain>:<bus>:<device>[:<function>]. It 664 also means that consumers of <sys/pciio.h> potentially need to 665 be recompiled; this includes the hal and xorg-server ports. 666 66720070928: 668 The caching daemon (cached) was renamed to nscd. nscd.conf 669 configuration file should be used instead of cached.conf and 670 nscd_enable, nscd_pidfile and nscd_flags options should be used 671 instead of cached_enable, cached_pidfile and cached_flags in 672 rc.conf. 673 67420070921: 675 The getfacl(1) utility now prints owning user and group name 676 instead of owning uid and gid in the three line comment header. 677 This is the same behavior as getfacl(1) on Solaris and Linux. 678 67920070704: 680 The new IPsec code is now compiled in using the IPSEC option. The 681 IPSEC option now requires "device crypto" be defined in your kernel 682 configuration. The FAST_IPSEC kernel option is now deprecated. 683 68420070702: 685 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 686 note the changed syntax - keep state is now on by default. Also 687 note the fact that ftp-proxy(8) has been changed from bottom up and 688 has been moved from libexec to usr/sbin. Changes in the ALTQ 689 handling also affect users of IPFW's ALTQ capabilities. 690 69120070701: 692 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 693 only IPsec supported by FreeBSD. The new IPsec stack 694 supports both IPv4 and IPv6. The kernel option will change 695 after the code changes have settled in. For now the kernel 696 option IPSEC is deprecated and FAST_IPSEC is the only option, that 697 will change after some settling time. 698 69920070701: 700 The wicontrol(8) utility has been removed from the base system. wi(4) 701 cards should be configured using ifconfig(8), see the man page for more 702 information. 703 70420070612: 705 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 706 instead of the nve(4) driver. Please update your configuration 707 accordingly. 708 70920070612: 710 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 711 database if it is missing or older than the aliases file. If 712 desired, set the new rc.conf option sendmail_rebuild_aliases 713 to "YES" to restore that functionality. 714 71520070612: 716 The IPv4 multicast socket code has been considerably modified, and 717 moved to the file sys/netinet/in_mcast.c. Initial support for the 718 RFC 3678 Source-Specific Multicast Socket API has been added to 719 the IPv4 network stack. 720 721 Strict multicast and broadcast reception is now the default for 722 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 723 has now been removed. 724 725 The RFC 1724 hack for interface selection has been removed; the use 726 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 727 been added to replace it. Consumers such as routed will soon be 728 updated to reflect this. 729 730 These changes affect users who are running routed(8) or rdisc(8) 731 from the FreeBSD base system on point-to-point or unnumbered 732 interfaces. 733 73420070610: 735 The net80211 layer has changed significantly and all wireless 736 drivers that depend on it need to be recompiled. Further these 737 changes require that any program that interacts with the wireless 738 support in the kernel be recompiled; this includes: ifconfig, 739 wpa_supplicant, hostapd, and wlanstats. Users must also, for 740 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 741 if they use modules for wireless support. These modules implement 742 scanning support for station and ap modes, respectively. Failure 743 to load the appropriate module before marking a wireless interface 744 up will result in a message to the console and the device not 745 operating properly. 746 74720070610: 748 The pam_nologin(8) module ceases to provide an authentication 749 function and starts providing an account management function. 750 Consequent changes to /etc/pam.d should be brought in using 751 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 752 need manual editing as follows. Locate this line (or similar): 753 754 auth required pam_nologin.so no_warn 755 756 and change it according to this example: 757 758 account required pam_nologin.so no_warn 759 760 That is, the first word needs to be changed from "auth" to 761 "account". The new line can be moved to the account section 762 within the file for clarity. Not updating pam.conf(5) files 763 will result in nologin(5) ignored by the respective services. 764 76520070529: 766 The ether_ioctl() function has been synchronized with ioctl(2) 767 and ifnet.if_ioctl. Due to that, the size of one of its arguments 768 has changed on 64-bit architectures. All kernel modules using 769 ether_ioctl() need to be rebuilt on such architectures. 770 77120070516: 772 Improved INCLUDE_CONFIG_FILE support has been introduced to the 773 config(8) utility. In order to take advantage of this new 774 functionality, you are expected to recompile and install 775 src/usr.sbin/config. If you don't rebuild config(8), and your 776 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 777 build will be broken because of a missing "kernconfstring" 778 symbol. 779 78020070513: 781 Symbol versioning is enabled by default. To disable it, use 782 option WITHOUT_SYMVER. It is not advisable to attempt to 783 disable symbol versioning once it is enabled; your installworld 784 will break because a symbol version-less libc will get installed 785 before the install tools. As a result, the old install tools, 786 which previously had symbol dependencies to FBSD_1.0, will fail 787 because the freshly installed libc will not have them. 788 789 The default threading library (providing "libpthread") has been 790 changed to libthr. If you wish to have libkse as your default, 791 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 792 79320070423: 794 The ABI breakage in sendmail(8)'s libmilter has been repaired 795 so it is no longer necessary to recompile mail filters (aka, 796 milters). If you recompiled mail filters after the 20070408 797 note, it is not necessary to recompile them again. 798 79920070417: 800 The new trunk(4) driver has been renamed to lagg(4) as it better 801 reflects its purpose. ifconfig will need to be recompiled. 802 80320070408: 804 sendmail(8) has been updated to version 8.14.1. Mail filters 805 (aka, milters) compiled against the libmilter included in the 806 base operating system should be recompiled. 807 80820070302: 809 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 810 In order to use them one must agree to the respective LICENSE in 811 share/doc/legal and define legal.intel_<name>.license_ack=1 via 812 loader.conf(5) or kenv(1). Make sure to deinstall the now 813 deprecated modules from the respective firmware ports. 814 81520070228: 816 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 817 were removed from FreeBSD's libc. These originally came from INRIA 818 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 819 deprecated in previous releases. 820 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 821 replace it as a more portable (and re-entrant) API. 822 82320070224: 824 To support interrupt filtering a modification to the newbus API 825 has occurred, ABI was broken and __FreeBSD_version was bumped 826 to 700031. Please make sure that your kernel and modules are in 827 sync. For more info: 828 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 829 83020070224: 831 The IPv6 multicast forwarding code may now be loaded into GENERIC 832 kernels by loading the ip_mroute.ko module. This is built into the 833 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 834 set; see src.conf(5) for more information. 835 83620070214: 837 The output of netstat -r has changed. Without -n, we now only 838 print a "network name" without the prefix length if the network 839 address and mask exactly match a Class A/B/C network, and an entry 840 exists in the nsswitch "networks" map. 841 With -n, we print the full unabbreviated CIDR network prefix in 842 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 843 This change is in preparation for changes such as equal-cost 844 multipath, and to more generally assist operational deployment 845 of FreeBSD as a modern IPv4 router. 846 84720070210: 848 PIM has been turned on by default in the IPv4 multicast 849 routing code. The kernel option 'PIM' has now been removed. 850 PIM is now built by default if option 'MROUTING' is specified. 851 It may now be loaded into GENERIC kernels by loading the 852 ip_mroute.ko module. 853 85420070207: 855 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 856 has been removed. Its functionality may be achieved by explicitly 857 configuring gif(4) interfaces and using the 'phyint' keyword in 858 mrouted.conf. 859 XORP does not support source-routed IPv4 multicast tunnels nor the 860 integrated IPIP tunneling, therefore it is not affected by this 861 change. The __FreeBSD_version macro has been bumped to 700030. 862 86320061221: 864 Support for PCI Message Signalled Interrupts has been 865 re-enabled in the bge driver, only for those chips which are 866 believed to support it properly. If there are any problems, 867 MSI can be disabled completely by setting the 868 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 869 in the loader. 870 87120061214: 872 Support for PCI Message Signalled Interrupts has been 873 disabled again in the bge driver. Many revisions of the 874 hardware fail to support it properly. Support can be 875 re-enabled by removing the #define of BGE_DISABLE_MSI in 876 "src/sys/dev/bge/if_bge.c". 877 87820061214: 879 Support for PCI Message Signalled Interrupts has been added 880 to the bge driver. If there are any problems, MSI can be 881 disabled completely by setting the 'hw.pci.enable_msi' and 882 'hw.pci.enable_msix' tunables to 0 in the loader. 883 88420061205: 885 The removal of several facets of the experimental Threading 886 system from the kernel means that the proc and thread structures 887 have changed quite a bit. I suggest all kernel modules that might 888 reference these structures be recompiled.. Especially the 889 linux module. 890 89120061126: 892 Sound infrastructure has been updated with various fixes and 893 improvements. Most of the changes are pretty much transparent, 894 with exceptions of followings: 895 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 896 moved to their own dev sysctl nodes, for example: 897 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 898 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 899 own chardev in the form of "dsp%d.<function>%d", where <function> 900 is p = playback, r = record and v = virtual, respectively. Users 901 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 902 This does not affect those who are using "/dev/dsp". 903 90420061122: 905 geom(4)'s gmirror(8) class metadata structure has been 906 rev'd from v3 to v4. If you update across this point and 907 your metadata is converted for you, you will not be easily 908 able to downgrade since the /boot/kernel.old/geom_mirror.ko 909 kernel module will be unable to read the v4 metadata. You 910 can resolve this by doing from the loader(8) prompt: 911 912 set vfs.root.mountfrom="ufs:/dev/XXX" 913 914 where XXX is the root slice of one of the disks that composed 915 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 916 the array the same way you built it originally. 917 91820061122: 919 The following binaries have been disconnected from the build: 920 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 921 and mount_std. The functionality of these programs has been 922 moved into the mount program. For example, to mount a devfs 923 filesystem, instead of using mount_devfs, use: "mount -t devfs". 924 This does not affect entries in /etc/fstab, since entries in 925 /etc/fstab are always processed with "mount -t fstype". 926 92720061113: 928 Support for PCI Message Signalled Interrupts on i386 and amd64 929 has been added to the kernel and various drivers will soon be 930 updated to use MSI when it is available. If there are any problems, 931 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 932 and 'hw.pci.enable_msix' tunables to 0 in the loader. 933 93420061110: 935 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 936 The lockmgr object layout has been changed as a result of having 937 a lock_object embedded in it. As a consequence all file system 938 kernel modules must be re-compiled. The mutex profiling man page 939 has not yet been updated to reflect this change. 940 94120061026: 942 KSE in the kernel has now been made optional and turned on by 943 default. Use 'nooption KSE' in your kernel config to turn it 944 off. All kernel modules *must* be recompiled after this change. 945 There-after, modules from a KSE kernel should be compatible with 946 modules from a NOKSE kernel due to the temporary padding fields 947 added to 'struct proc'. 948 94920060929: 950 mrouted and its utilities have been removed from the base system. 951 95220060927: 953 Some ioctl(2) command codes have changed. Full backward ABI 954 compatibility is provided if the "options COMPAT_FREEBSD6" is 955 present in the kernel configuration file. Make sure to add 956 this option to your kernel config file, or recompile X.Org 957 and the rest of ports; otherwise they may refuse to work. 958 95920060924: 960 tcpslice has been removed from the base system. 961 96220060913: 963 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 964 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 965 systat needs to be rebuilt. 966 96720060903: 968 libpcap updated to v0.9.4 and tcpdump to v3.9.4 969 97020060816: 971 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 972 for IPFIREWALL_FORWARD is now as it was before when it was first 973 committed and for years after. The behaviour is now ON. 974 97520060725: 976 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 977 Now it can decrypt files created from different architectures. 978 Unfortunately, it is no longer able to decrypt a cipher text 979 generated with an older version on 64 bit architectures. 980 If you have such a file, you need old utility to decrypt it. 981 98220060709: 983 The interface version of the i4b kernel part has changed. So 984 after updating the kernel sources and compiling a new kernel, 985 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 986 be rebuilt, and vice versa. 987 98820060627: 989 The XBOX kernel now defaults to the nfe(4) driver instead of 990 the nve(4) driver. Please update your configuration 991 accordingly. 992 99320060514: 994 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 995 PCnet family of NICs has been removed. The new le(4) driver serves 996 as an equivalent but cross-platform replacement with the pcn(4) 997 driver still providing performance-optimized support for the subset 998 of AMD Am79C971 PCnet-FAST and greater chips as before. 999 100020060511: 1001 The machdep.* sysctls and the adjkerntz utility have been 1002 modified a bit. The new adjkerntz utility uses the new 1003 sysctl names and sysctlbyname() calls, so it may be impossible 1004 to run an old /sbin/adjkerntz utility in single-user mode 1005 with a new kernel. Replace the `adjkerntz -i' step before 1006 `make installworld' with: 1007 1008 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1009 1010 and proceed as usual with the rest of the installworld-stage 1011 steps. Otherwise, you risk installing binaries with their 1012 timestamp set several hours in the future, especially if 1013 you are running with local time set to GMT+X hours. 1014 101520060412: 1016 The ip6fw utility has been removed. The behavior provided by 1017 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1018 have been updated to deal with it. There are some rules that 1019 might not migrate cleanly. Use rc.firewall6 as a template to 1020 rewrite rules. 1021 102220060428: 1023 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1024 attachments have been removed. Make sure to configure scc(4) 1025 on sparc64. Note also that by default puc(4) will use uart(4) 1026 and not sio(4) for serial ports because interrupt handling has 1027 been optimized for multi-port serial cards and only uart(4) 1028 implements the interface to support it. 1029 103020060330: 1031 The scc(4) driver replaces puc(4) for Serial Communications 1032 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1033 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1034 configuration to make sure that the serial ports remain 1035 functional. 1036 103720060317: 1038 Most world/kernel related NO_* build options changed names. 1039 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1040 after FreeBSD ports) and should be set in /etc/src.conf 1041 (the src.conf(5) manpage is provided). Full backwards 1042 compatibility is maintained for the time being though it's 1043 highly recommended to start moving old options out of the 1044 system-wide /etc/make.conf file into the new /etc/src.conf 1045 while also properly renaming them. More conversions will 1046 likely follow. Posting to current@: 1047 1048 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1049 105020060305: 1051 The NETSMBCRYPTO kernel option has been retired because its 1052 functionality is always included in NETSMB and smbfs.ko now. 1053 105420060303: 1055 The TDFX_LINUX kernel option was retired and replaced by the 1056 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1057 kernel module. Loading it alone should suffice to get 3dfx support 1058 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1059 its dependencies. 1060 106120060204: 1062 The 'audit' group was added to support the new auditing functionality 1063 in the base system. Be sure to follow the directions for updating, 1064 including the requirement to run mergemaster -p. 1065 106620060201: 1067 The kernel ABI to file system modules was changed on i386. 1068 Please make sure that your kernel and modules are in sync. 1069 107020060118: 1071 This actually occured some time ago, but installing the kernel 1072 now also installs a bunch of symbol files for the kernel modules. 1073 This increases the size of /boot/kernel to about 67Mbytes. You 1074 will need twice this if you will eventually back this up to kernel.old 1075 on your next install. 1076 If you have a shortage of room in your root partition, you should add 1077 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1078 to your /etc/make.conf. 1079 108020060113: 1081 libc's malloc implementation has been replaced. This change has the 1082 potential to uncover application bugs that previously went unnoticed. 1083 See the malloc(3) manual page for more details. 1084 108520060112: 1086 The generic netgraph(4) cookie has been changed. If you upgrade 1087 kernel passing this point, you also need to upgrade userland 1088 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1089 109020060106: 1091 si(4)'s device files now contain the unit number. 1092 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1093 109420060106: 1095 The kernel ABI was mostly destroyed due to a change in the size 1096 of struct lock_object which is nested in other structures such 1097 as mutexes which are nested in all sorts of other structures. 1098 Make sure your kernel and modules are in sync. 1099 110020051231: 1101 The page coloring algorithm in the VM subsystem was converted 1102 from tuning with kernel options to autotuning. Please remove 1103 any PQ_* option except PQ_NOOPT from your kernel config. 1104 110520051211: 1106 The net80211-related tools in the tools/tools/ath directory 1107 have been moved to tools/tools/net80211 and renamed with a 1108 "wlan" prefix. Scripts that use them should be adjusted 1109 accordingly. 1110 111120051202: 1112 Scripts in the local_startup directories (as defined in 1113 /etc/defaults/rc.conf) that have the new rc.d semantics will 1114 now be run as part of the base system rcorder. If there are 1115 errors or problems with one of these local scripts, it could 1116 cause boot problems. If you encounter such problems, boot in 1117 single user mode, remove that script from the */rc.d directory. 1118 Please report the problem to the port's maintainer, and the 1119 freebsd-ports@freebsd.org mailing list. 1120 112120051129: 1122 The nodev mount option was deprecated in RELENG_6 (where it 1123 was a no-op), and is now unsupported. If you have nodev or dev listed 1124 in /etc/fstab, remove it, otherwise it will result in a mount error. 1125 112620051129: 1127 ABI between ipfw(4) and ipfw(8) has been changed. You need 1128 to rebuild ipfw(8) when rebuilding kernel. 1129 113020051108: 1131 rp(4)'s device files now contain the unit number. 1132 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1133 113420051029: 1135 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1136 Its /etc/rc.conf.d configuration file has been `ppp' from 1137 the beginning, and hence there is no need to touch it. 1138 113920051014: 1140 Now most modules get their build-time options from the kernel 1141 configuration file. A few modules still have fixed options 1142 due to their non-conformant implementation, but they will be 1143 corrected eventually. You may need to review the options of 1144 the modules in use, explicitly specify the non-default options 1145 in the kernel configuration file, and rebuild the kernel and 1146 modules afterwards. 1147 114820051001: 1149 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1150 to turn polling(4) on your interfaces. 1151 115220050927: 1153 The old bridge(4) implementation was retired. The new 1154 if_bridge(4) serves as a full functional replacement. 1155 115620050722: 1157 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1158 to conform to POSIX-2001. This change broke an ABI 1159 compatibility on 64 bit architecture. You have to recompile 1160 userland programs that use getaddrinfo(3) on 64 bit 1161 architecture. 1162 116320050711: 1164 RELENG_6 branched here. 1165 116620050629: 1167 The pccard_ifconfig rc.conf variable has been removed and a new 1168 variable, ifconfig_DEFAULT has been introduced. Unlike 1169 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1170 do not have ifconfig_ifn entries rather than just those in 1171 removable_interfaces. 1172 117320050616: 1174 Some previous versions of PAM have permitted the use of 1175 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1176 to third party PAM modules in /usr/local/lib. A change has been 1177 made to require the use of absolute paths in order to avoid 1178 ambiguity and dependence on library path configuration, which may 1179 affect existing configurations. 1180 118120050610: 1182 Major changes to network interface API. All drivers must be 1183 recompiled. Drivers not in the base system will need to be 1184 updated to the new APIs. 1185 118620050609: 1187 Changes were made to kinfo_proc in sys/user.h. Please recompile 1188 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1189 will not behave correctly. 1190 1191 The API and ABI for hwpmc(4) have changed with the addition 1192 of sampling support. Please recompile lib/libpmc(3) and 1193 usr.sbin/{pmcstat,pmccontrol}. 1194 119520050606: 1196 The OpenBSD dhclient was imported in place of the ISC dhclient 1197 and the network interface configuration scripts were updated 1198 accordingly. If you use DHCP to configure your interfaces, you 1199 must now run devd. Also, DNS updating was lost so you will need 1200 to find a workaround if you use this feature. 1201 1202 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1203 sure to run mergemaster -p (like you are supposed to do every time 1204 anyway). 1205 120620050605: 1207 if_bridge was added to the tree. This has changed struct ifnet. 1208 Please recompile userland and all network related modules. 1209 121020050603: 1211 The n_net of a struct netent was changed to an uint32_t, and 1212 1st argument of getnetbyaddr() was changed to an uint32_t, to 1213 conform to POSIX-2001. These changes broke an ABI 1214 compatibility on 64 bit architecture. With these changes, 1215 shlib major of libpcap was bumped. You have to recompile 1216 userland programs that use getnetbyaddr(3), getnetbyname(3), 1217 getnetent(3) and/or libpcap on 64 bit architecture. 1218 121920050528: 1220 Kernel parsing of extra options on '#!' first lines of shell 1221 scripts has changed. Lines with multiple options likely will 1222 fail after this date. For full details, please see 1223 http://people.freebsd.org/~gad/Updating-20050528.txt 1224 122520050503: 1226 The packet filter (pf) code has been updated to OpenBSD 3.7 1227 Please note the changed anchor syntax and the fact that 1228 authpf(8) now needs a mounted fdescfs(5) to function. 1229 123020050415: 1231 The NO_MIXED_MODE kernel option has been removed from the i386 1232 amd64 platforms as its use has been superceded by the new local 1233 APIC timer code. Any kernel config files containing this option 1234 should be updated. 1235 123620050227: 1237 The on-disk format of LC_CTYPE files was changed to be machine 1238 independent. Please make sure NOT to use NO_CLEAN buildworld 1239 when crossing this point. Crossing this point also requires 1240 recompile or reinstall of all locale depended packages. 1241 124220050225: 1243 The ifi_epoch member of struct if_data has been changed to 1244 contain the uptime at which the interface was created or the 1245 statistics zeroed rather then the wall clock time because 1246 wallclock time may go backwards. This should have no impact 1247 unless an snmp implementation is using this value (I know of 1248 none at this point.) 1249 125020050224: 1251 The acpi_perf and acpi_throttle drivers are now part of the 1252 acpi(4) main module. They are no longer built separately. 1253 125420050223: 1255 The layout of struct image_params has changed. You have to 1256 recompile all compatibility modules (linux, svr4, etc) for use 1257 with the new kernel. 1258 125920050223: 1260 The p4tcc driver has been merged into cpufreq(4). This makes 1261 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1262 compile in "device cpufreq" to restore this functionality. 1263 126420050220: 1265 The responsibility of recomputing the file system summary of 1266 a SoftUpdates-enabled dirty volume has been transferred to the 1267 background fsck. A rebuild of fsck(8) utility is recommended 1268 if you have updated the kernel. 1269 1270 To get the old behavior (recompute file system summary at mount 1271 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1272 mounting the new volume. 1273 127420050206: 1275 The cpufreq import is complete. As part of this, the sysctls for 1276 acpi(4) throttling have been removed. The power_profile script 1277 has been updated, so you can use performance/economy_cpu_freq in 1278 rc.conf(5) to set AC on/offline cpu frequencies. 1279 128020050206: 1281 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1282 requires recompiling libnetgraph and userland netgraph utilities. 1283 128420050114: 1285 Support for abbreviated forms of a number of ipfw options is 1286 now deprecated. Warnings are printed to stderr indicating the 1287 correct full form when a match occurs. Some abbreviations may 1288 be supported at a later date based on user feedback. To be 1289 considered for support, abbreviations must be in use prior to 1290 this commit and unlikely to be confused with current key words. 1291 129220041221: 1293 By a popular demand, a lot of NOFOO options were renamed 1294 to NO_FOO (see bsd.compat.mk for a full list). The old 1295 spellings are still supported, but will cause annoying 1296 warnings on stderr. Make sure you upgrade properly (see 1297 the COMMON ITEMS: section later in this file). 1298 129920041219: 1300 Auto-loading of ancillary wlan modules such as wlan_wep has 1301 been temporarily disabled; you need to statically configure 1302 the modules you need into your kernel or explicitly load them 1303 prior to use. Specifically, if you intend to use WEP encryption 1304 with an 802.11 device load/configure wlan_wep; if you want to 1305 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1306 and wlan_xauth as required. 1307 130820041213: 1309 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1310 (``enable lqr''), older versions would revert to LCP ECHO mode on 1311 negotiation failure. Now, ``enable echo'' is required for this 1312 behaviour. The ppp version number has been bumped to 3.4.2 to 1313 reflect the change. 1314 131520041201: 1316 The wlan support has been updated to split the crypto support 1317 into separate modules. For static WEP you must configure the 1318 wlan_wep module in your system or build and install the module 1319 in place where it can be loaded (the kernel will auto-load 1320 the module when a wep key is configured). 1321 132220041201: 1323 The ath driver has been updated to split the tx rate control 1324 algorithm into a separate module. You need to include either 1325 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1326 132720041116: 1328 Support for systems with an 80386 CPU has been removed. Please 1329 use FreeBSD 5.x or earlier on systems with an 80386. 1330 133120041110: 1332 We have had a hack which would mount the root filesystem 1333 R/W if the device were named 'md*'. As part of the vnode 1334 work I'm doing I have had to remove this hack. People 1335 building systems which use preloaded MD root filesystems 1336 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1337 their /etc/rc scripts. 1338 133920041104: 1340 FreeBSD 5.3 shipped here. 1341 134220041102: 1343 The size of struct tcpcb has changed again due to the removal 1344 of RFC1644 T/TCP. You have to recompile userland programs that 1345 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1346 134720041022: 1348 The size of struct tcpcb has changed. You have to recompile 1349 userland programs that read kmem for tcp sockets directly 1350 (netstat, sockstat, etc.) 1351 135220041016: 1353 RELENG_5 branched here. For older entries, please see updating 1354 in the RELENG_5 branch. 1355 1356COMMON ITEMS: 1357 1358 General Notes 1359 ------------- 1360 Avoid using make -j when upgrading. From time to time in the 1361 past there have been problems using -j with buildworld and/or 1362 installworld. This is especially true when upgrading between 1363 "distant" versions (eg one that cross a major release boundary 1364 or several minor releases, or when several months have passed 1365 on the -current branch). 1366 1367 Sometimes, obscure build problems are the result of environment 1368 poisoning. This can happen because the make utility reads its 1369 environment when searching for values for global variables. 1370 To run your build attempts in an "environmental clean room", 1371 prefix all make commands with 'env -i '. See the env(1) manual 1372 page for more details. 1373 1374 When upgrading from one major version to another it is generally 1375 best to upgrade to the latest code in the currently installed branch 1376 first, then do an upgrade to the new branch. This is the best-tested 1377 upgrade path, and has the highest probability of being successful. 1378 Please try this approach before reporting problems with a major 1379 version upgrade. 1380 1381 To build a kernel 1382 ----------------- 1383 If you are updating from a prior version of FreeBSD (even one just 1384 a few days old), you should follow this procedure. It is the most 1385 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1386 1387 make kernel-toolchain 1388 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1389 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1390 1391 To test a kernel once 1392 --------------------- 1393 If you just want to boot a kernel once (because you are not sure 1394 if it works, or if you want to boot a known bad kernel to provide 1395 debugging information) run 1396 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1397 nextboot -k testkernel 1398 1399 To just build a kernel when you know that it won't mess you up 1400 -------------------------------------------------------------- 1401 This assumes you are already running a 5.X system. Replace 1402 ${arch} with the architecture of your machine (e.g. "i386", 1403 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1404 1405 cd src/sys/${arch}/conf 1406 config KERNEL_NAME_HERE 1407 cd ../compile/KERNEL_NAME_HERE 1408 make depend 1409 make 1410 make install 1411 1412 If this fails, go to the "To build a kernel" section. 1413 1414 To rebuild everything and install it on the current system. 1415 ----------------------------------------------------------- 1416 # Note: sometimes if you are running current you gotta do more than 1417 # is listed here if you are upgrading from a really old current. 1418 1419 <make sure you have good level 0 dumps> 1420 make buildworld 1421 make kernel KERNCONF=YOUR_KERNEL_HERE 1422 [1] 1423 <reboot in single user> [3] 1424 mergemaster -p [5] 1425 make installworld 1426 make delete-old 1427 mergemaster [4] 1428 <reboot> 1429 1430 1431 To cross-install current onto a separate partition 1432 -------------------------------------------------- 1433 # In this approach we use a separate partition to hold 1434 # current's root, 'usr', and 'var' directories. A partition 1435 # holding "/", "/usr" and "/var" should be about 2GB in 1436 # size. 1437 1438 <make sure you have good level 0 dumps> 1439 <boot into -stable> 1440 make buildworld 1441 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1442 <maybe newfs current's root partition> 1443 <mount current's root partition on directory ${CURRENT_ROOT}> 1444 make installworld DESTDIR=${CURRENT_ROOT} 1445 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1446 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1447 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1448 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1449 <reboot into current> 1450 <do a "native" rebuild/install as described in the previous section> 1451 <maybe install compatibility libraries from ports/misc/compat*> 1452 <reboot> 1453 1454 1455 To upgrade in-place from 5.x-stable to current 1456 ---------------------------------------------- 1457 <make sure you have good level 0 dumps> 1458 make buildworld [9] 1459 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1460 [1] 1461 <reboot in single user> [3] 1462 mergemaster -p [5] 1463 make installworld 1464 make delete-old 1465 mergemaster -i [4] 1466 <reboot> 1467 1468 Make sure that you've read the UPDATING file to understand the 1469 tweaks to various things you need. At this point in the life 1470 cycle of current, things change often and you are on your own 1471 to cope. The defaults can also change, so please read ALL of 1472 the UPDATING entries. 1473 1474 Also, if you are tracking -current, you must be subscribed to 1475 freebsd-current@freebsd.org. Make sure that before you update 1476 your sources that you have read and understood all the recent 1477 messages there. If in doubt, please track -stable which has 1478 much fewer pitfalls. 1479 1480 [1] If you have third party modules, such as vmware, you 1481 should disable them at this point so they don't crash your 1482 system on reboot. 1483 1484 [3] From the bootblocks, boot -s, and then do 1485 fsck -p 1486 mount -u / 1487 mount -a 1488 cd src 1489 adjkerntz -i # if CMOS is wall time 1490 Also, when doing a major release upgrade, it is required that 1491 you boot into single user mode to do the installworld. 1492 1493 [4] Note: This step is non-optional. Failure to do this step 1494 can result in a significant reduction in the functionality of the 1495 system. Attempting to do it by hand is not recommended and those 1496 that pursue this avenue should read this file carefully, as well 1497 as the archives of freebsd-current and freebsd-hackers mailing lists 1498 for potential gotchas. 1499 1500 [5] Usually this step is a noop. However, from time to time 1501 you may need to do this if you get unknown user in the following 1502 step. It never hurts to do it all the time. You may need to 1503 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1504 install) after the buildworld before this step if you last updated 1505 from current before 20020224 or from -stable before 20020408. 1506 1507 [8] In order to have a kernel that can run the 4.x binaries 1508 needed to do an installworld, you must include the COMPAT_FREEBSD4 1509 option in your kernel. Failure to do so may leave you with a system 1510 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1511 is required to run the 5.x binaries on more recent kernels. 1512 1513 Make sure that you merge any new devices from GENERIC since the 1514 last time you updated your kernel config file. 1515 1516 [9] When checking out sources, you must include the -P flag to have 1517 cvs prune empty directories. 1518 1519 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1520 "?=" instead of the "=" assignment operator, so that buildworld can 1521 override the CPUTYPE if it needs to. 1522 1523 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1524 not on the command line, or in /etc/make.conf. buildworld will 1525 warn if it is improperly defined. 1526FORMAT: 1527 1528This file contains a list, in reverse chronological order, of major 1529breakages in tracking -current. Not all things will be listed here, 1530and it only starts on October 16, 2004. Updating files can found in 1531previous releases if your system is older than this. 1532 1533Copyright information: 1534 1535Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1536 1537Redistribution, publication, translation and use, with or without 1538modification, in full or in part, in any form or format of this 1539document are permitted without further permission from the author. 1540 1541THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1542IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1543WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1544DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1545INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1546(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1547SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1548HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1549STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1550IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1551POSSIBILITY OF SUCH DAMAGE. 1552 1553If you find this document useful, and you want to, you may buy the 1554author a beer. 1555 1556Contact Warner Losh if you have any questions about your use of 1557this document. 1558 1559$FreeBSD: head/UPDATING 193093 2009-05-30 14:01:01Z trasz $ 1560