UPDATING revision 192502
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 2520090520: 26 The sysctl tree for the usb stack has renamed from hw.usb2.* to 27 hw.usb.* and is now consistent again with previous releases. 28 2920090520: 30 802.11 monitor mode support was revised and driver api's 31 were changed. Drivers dependent on net80211 now support 32 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 33 user-visible data structures were changed but applications 34 that use DLT_IEEE802_11 may require changes. 35 Bump __FreeBSD_version to 800088. 36 3720090430: 38 The layout of the following structs has changed: sysctl_oid, 39 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 40 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 41 panics may be experienced. World rebuild is required for 42 correctly checking networking state from userland. 43 Bump __FreeBSD_version to 800085. 44 4520090429: 46 MLDv2 and Source-Specific Multicast (SSM) have been merged 47 to the IPv6 stack. VIMAGE hooks are in but not yet used. 48 The implementation of SSM within FreeBSD's IPv6 stack closely 49 follows the IPv4 implementation. 50 51 For kernel developers: 52 53 * The most important changes are that the ip6_output() and 54 ip6_input() paths no longer take the IN6_MULTI_LOCK, 55 and this lock has been downgraded to a non-recursive mutex. 56 57 * As with the changes to the IPv4 stack to support SSM, filtering 58 of inbound multicast traffic must now be performed by transport 59 protocols within the IPv6 stack. This does not apply to TCP and 60 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 61 62 * The KPIs used by IPv6 multicast are similar to those used by 63 the IPv4 stack, with the following differences: 64 * im6o_mc_filter() is analogous to imo_multicast_filter(). 65 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 66 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 67 * IN6_LOOKUP_MULTI() has been deprecated and removed. 68 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 69 for MLDv1 have an additional 'timer' argument which is used to 70 jitter the initial membership report for the solicited-node 71 multicast membership on-link. 72 * This is not strictly needed for MLDv2, which already jitters 73 its report transmissions. However, the 'timer' argument is 74 preserved in case MLDv1 is active on the interface. 75 76 * The KAME linked-list based IPv6 membership implementation has 77 been refactored to use a vector similar to that used by the IPv4 78 stack. 79 Code which maintains a list of its own multicast memberships 80 internally, e.g. carp, has been updated to reflect the new 81 semantics. 82 83 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 84 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 85 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 86 implementation constraint which needs to be addressed in HEAD. 87 88 For application developers: 89 90 * The changes are broadly similar to those made for the IPv4 91 stack. 92 93 * The use of IPv4 and IPv6 multicast socket options on the same 94 socket, using mapped addresses, HAS NOT been tested or supported. 95 96 * There are a number of issues with the implementation of various 97 IPv6 multicast APIs which need to be resolved in the API surface 98 before the implementation is fully compatible with KAME userland 99 use, and these are mostly to do with interface index treatment. 100 101 * The literature available discusses the use of either the delta / ASM 102 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 103 using setsourcefilter(3)/getsourcefilter(3). For more information 104 please refer to RFC 3768, 'Socket Interface Extensions for 105 Multicast Source Filters'. 106 107 * Applications which use the published RFC 3678 APIs should be fine. 108 109 For systems administrators: 110 111 * The mtest(8) utility has been refactored to support IPv6, in 112 addition to IPv4. Interface addresses are no longer accepted 113 as arguments, their names must be used instead. The utility 114 will map the interface name to its first IPv4 address as 115 returned by getifaddrs(3). 116 117 * The ifmcstat(8) utility has also been updated to print the MLDv2 118 endpoint state and source filter lists via sysctl(3). 119 120 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 121 loopback of IPv6 multicast datagrams by default; it defaults to 1 122 to preserve the existing behaviour. Disabling multicast loopback is 123 recommended for optimal system performance. 124 125 * The IPv6 MROUTING code has been changed to examine this sysctl 126 instead of attempting to perform a group lookup before looping 127 back forwarded datagrams. 128 129 Bump __FreeBSD_version to 800084. 130 13120090422: 132 Implement low-level Bluetooth HCI API. 133 Bump __FreeBSD_version to 800083. 134 13520090419: 136 The layout of struct malloc_type, used by modules to register new 137 memory allocation types, has changed. Most modules will need to 138 be rebuilt or panics may be experienced. 139 Bump __FreeBSD_version to 800081. 140 14120090415: 142 Anticipate overflowing inp_flags - add inp_flags2. 143 This changes most offsets in inpcb, so checking v4 connection 144 state will require a world rebuild. 145 Bump __FreeBSD_version to 800080. 146 14720090415: 148 Add an llentry to struct route and struct route_in6. Modules 149 embedding a struct route will need to be recompiled. 150 Bump __FreeBSD_version to 800079. 151 15220090414: 153 The size of rt_metrics_lite and by extension rtentry has changed. 154 Networking administration apps will need to be recompiled. 155 The route command now supports show as an alias for get, weighting 156 of routes, sticky and nostick flags to alter the behavior of stateful 157 load balancing. 158 Bump __FreeBSD_version to 800078. 159 16020090408: 161 Do not use Giant for kbdmux(4) locking. This is wrong and 162 apparently causing more problems than it solves. This will 163 re-open the issue where interrupt handlers may race with 164 kbdmux(4) in polling mode. Typical symptoms include (but 165 not limited to) duplicated and/or missing characters when 166 low level console functions (such as gets) are used while 167 interrupts are enabled (for example geli password prompt, 168 mountroot prompt etc.). Disabling kbdmux(4) may help. 169 17020090407: 171 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 172 kernel modules referencing any of the above need to be recompiled. 173 Bump __FreeBSD_version to 800075. 174 17520090320: 176 GEOM_PART has become the default partition slicer for storage devices, 177 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 178 introduces some changes: 179 180 MSDOS/EBR: the devices created from MSDOS extended partition entries 181 (EBR) can be named differently than with GEOM_MBR and are now symlinks 182 to devices with offset-based names. fstabs may need to be modified. 183 184 BSD: the "geometry does not match label" warning is harmless in most 185 cases but it points to problems in file system misalignment with 186 disk geometry. The "c" partition is now implicit, covers the whole 187 top-level drive and cannot be (mis)used by users. 188 189 General: Kernel dumps are now not allowed to be written to devices 190 whose partition types indicate they are meant to be used for file 191 systems (or, in case of MSDOS partitions, as something else than 192 the "386BSD" type). 193 194 Most of these changes date approximately from 200812. 195 19620090319: 197 The uscanner(4) driver has been removed from the kernel. This follows 198 Linux removing theirs in 2.6 and making libusb the default interface 199 (supported by sane). 200 20120090319: 202 The multicast forwarding code has been cleaned up. netstat(1) 203 only relies on KVM now for printing bandwidth upcall meters. 204 The IPv4 and IPv6 modules are split into ip_mroute_mod and 205 ip6_mroute_mod respectively. The config(5) options for statically 206 compiling this code remain the same, i.e. 'options MROUTING'. 207 20820090315: 209 Support for the IFF_NEEDSGIANT network interface flag has been 210 removed, which means that non-MPSAFE network device drivers are no 211 longer supported. In particular, if_ar, if_sr, and network device 212 drivers from the old (legacy) USB stack can no longer be built or 213 used. 214 21520090313: 216 POSIX.1 Native Language Support (NLS) has been enabled in libc and 217 a bunch of new language catalog files have also been added. 218 This means that some common libc messages are now localized and 219 they depend on the LC_MESSAGES environmental variable. 220 22120090313: 222 The k8temp(4) driver has been renamed to amdtemp(4) since 223 support for K10 and K11 CPU families was added. 224 22520090309: 226 IGMPv3 and Source-Specific Multicast (SSM) have been merged 227 to the IPv4 stack. VIMAGE hooks are in but not yet used. 228 229 For kernel developers, the most important changes are that the 230 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 231 and this lock has been downgraded to a non-recursive mutex. 232 233 Transport protocols (UDP, Raw IP) are now responsible for filtering 234 inbound multicast traffic according to group membership and source 235 filters. The imo_multicast_filter() KPI exists for this purpose. 236 Transports which do not use multicast (SCTP, TCP) already reject 237 multicast by default. Forwarding and receive performance may improve 238 as a mutex acquisition is no longer needed in the ip_input() 239 low-level input path. in_addmulti() and in_delmulti() are shimmed 240 to new KPIs which exist to support SSM in-kernel. 241 242 For application developers, it is recommended that loopback of 243 multicast datagrams be disabled for best performance, as this 244 will still cause the lock to be taken for each looped-back 245 datagram transmission. The net.inet.ip.mcast.loop sysctl may 246 be tuned to 0 to disable loopback by default; it defaults to 1 247 to preserve the existing behaviour. 248 249 For systems administrators, to obtain best performance with 250 multicast reception and multiple groups, it is always recommended 251 that a card with a suitably precise hash filter is used. Hash 252 collisions will still result in the lock being taken within the 253 transport protocol input path to check group membership. 254 255 If deploying FreeBSD in an environment with IGMP snooping switches, 256 it is recommended that the net.inet.igmp.sendlocal sysctl remain 257 enabled; this forces 224.0.0.0/24 group membership to be announced 258 via IGMP. 259 260 The size of 'struct igmpstat' has changed; netstat needs to be 261 recompiled to reflect this. 262 Bump __FreeBSD_version to 800070. 263 26420090309: 265 libusb20.so.1 is now installed as libusb.so.1 and the ports system 266 updated to use it. This requires a buildworld/installworld in order to 267 update the library and dependencies (usbconfig, etc). Its advisable to 268 rebuild all ports which uses libusb. More specific directions are given 269 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 270 libusb are no longer required and can be removed. 271 27220090302: 273 A workaround is committed to allow the creation of System V shared 274 memory segment of size > 2 GB on the 64-bit architectures. 275 Due to a limitation of the existing ABI, the shm_segsz member 276 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 277 wrong for large segments. Note that limits must be explicitely 278 raised to allow such segments to be created. 279 28020090301: 281 The layout of struct ifnet has changed, requiring a rebuild of all 282 network device driver modules. 283 28420090227: 285 The /dev handling for the new USB stack has changed, a 286 buildworld/installworld is required for libusb20. 287 28820090223: 289 The new USB2 stack has now been permanently moved in and all kernel and 290 module names reverted to their previous values (eg, usb, ehci, ohci, 291 ums, ...). The old usb stack can be compiled in by prefixing the name 292 with the letter 'o', the old usb modules have been removed. 293 Updating entry 20090216 for xorg and 20090215 for libmap may still 294 apply. 295 29620090217: 297 The rc.conf(5) option if_up_delay has been renamed to 298 defaultroute_delay to better reflect its purpose. If you have 299 customized this setting in /etc/rc.conf you need to update it to 300 use the new name. 301 30220090216: 303 xorg 7.4 wants to configure its input devices via hald which does not 304 yet work with USB2. If the keyboard/mouse does not work in xorg then 305 add 306 Option "AllowEmptyInput" "off" 307 to your ServerLayout section. This will cause X to use the configured 308 kbd and mouse sections from your xorg.conf. 309 31020090215: 311 The GENERIC kernels for all architectures now default to the new USB2 312 stack. No kernel config options or code have been removed so if a 313 problem arises please report it and optionally revert to the old USB 314 stack. If you are loading USB kernel modules or have a custom kernel 315 that includes GENERIC then ensure that usb names are also changed over, 316 eg uftdi -> usb2_serial_ftdi. 317 318 Older programs linked against the ports libusb 0.1 need to be 319 redirected to the new stack's libusb20. /etc/libmap.conf can 320 be used for this: 321 # Map old usb library to new one for usb2 stack 322 libusb-0.1.so.8 libusb20.so.1 323 32420090203: 325 The ichsmb(4) driver has been changed to require SMBus slave 326 addresses be left-justified (xxxxxxx0b) rather than right-justified. 327 All of the other SMBus controller drivers require left-justified 328 slave addresses, so this change makes all the drivers provide the 329 same interface. 330 33120090201: 332 INET6 statistics (struct ip6stat) was updated. 333 netstat(1) needs to be recompiled. 334 33520090119: 336 NTFS has been removed from GENERIC kernel on amd64 to match 337 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 338 will load ntfs.ko module automatically when NTFS support is 339 actually needed, unless ntfs.ko is not installed or security 340 level prohibits loading kernel modules. If either is the case, 341 "options NTFS" has to be added into kernel config. 342 34320090115: 344 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 345 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 346 800061. User space tools that rely on the size of struct tcpcb in 347 tcp_var.h (e.g. sockstat) need to be recompiled. 348 34920081225: 350 ng_tty(4) module updated to match the new TTY subsystem. 351 Due to API change, user-level applications must be updated. 352 New API support added to mpd5 CVS and expected to be present 353 in next mpd5.3 release. 354 35520081219: 356 With __FreeBSD_version 800060 the makefs tool is part of 357 the base system (it was a port). 358 35920081216: 360 The afdata and ifnet locks have been changed from mutexes to 361 rwlocks, network modules will need to be re-compiled. 362 36320081214: 364 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 365 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 366 The new code reduced struct rtentry{} by 16 bytes on 32-bit 367 architecture and 40 bytes on 64-bit architecture. The userland 368 applications "arp" and "ndp" have been updated accordingly. 369 The output from "netstat -r" shows only routing entries and 370 none of the L2 information. 371 37220081130: 373 __FreeBSD_version 800057 marks the switchover from the 374 binary ath hal to source code. Users must add the line: 375 376 options AH_SUPPORT_AR5416 377 378 to their kernel config files when specifying: 379 380 device ath_hal 381 382 The ath_hal module no longer exists; the code is now compiled 383 together with the driver in the ath module. It is now 384 possible to tailor chip support (i.e. reduce the set of chips 385 and thereby the code size); consult ath_hal(4) for details. 386 38720081121: 388 __FreeBSD_version 800054 adds memory barriers to 389 <machine/atomic.h>, new interfaces to ifnet to facilitate 390 multiple hardware transmit queues for cards that support 391 them, and a lock-less ring-buffer implementation to 392 enable drivers to more efficiently manage queueing of 393 packets. 394 39520081117: 396 A new version of ZFS (version 13) has been merged to -HEAD. 397 This version has zpool attribute "listsnapshots" off by 398 default, which means "zfs list" does not show snapshots, 399 and is the same as Solaris behavior. 400 40120081028: 402 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 403 40420081009: 405 The uhci, ohci, ehci and slhci USB Host controller drivers have 406 been put into separate modules. If you load the usb module 407 separately through loader.conf you will need to load the 408 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 409 controller add the following to loader.conf: 410 411 uhci_load="YES" 412 ehci_load="YES" 413 41420081009: 415 The ABI used by the PMC toolset has changed. Please keep 416 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 417 sync. 418 41920080820: 420 The TTY subsystem of the kernel has been replaced by a new 421 implementation, which provides better scalability and an 422 improved driver model. Most common drivers have been migrated to 423 the new TTY subsystem, while others have not. The following 424 drivers have not yet been ported to the new TTY layer: 425 426 PCI/ISA: 427 cy, digi, rc, rp, sio 428 429 USB: 430 ubser, ucycom 431 432 Line disciplines: 433 ng_h4, ng_tty, ppp, sl, snp 434 435 Adding these drivers to your kernel configuration file shall 436 cause compilation to fail. 437 43820080818: 439 ntpd has been upgraded to 4.2.4p5. 440 44120080801: 442 OpenSSH has been upgraded to 5.1p1. 443 444 For many years, FreeBSD's version of OpenSSH preferred DSA 445 over RSA for host and user authentication keys. With this 446 upgrade, we've switched to the vendor's default of RSA over 447 DSA. This may cause upgraded clients to warn about unknown 448 host keys even for previously known hosts. Users should 449 follow the usual procedure for verifying host keys before 450 accepting the RSA key. 451 452 This can be circumvented by setting the "HostKeyAlgorithms" 453 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 454 command line. 455 456 Please note that the sequence of keys offered for 457 authentication has been changed as well. You may want to 458 specify IdentityFile in a different order to revert this 459 behavior. 460 46120080713: 462 The sio(4) driver has been removed from the i386 and amd64 463 kernel configuration files. This means uart(4) is now the 464 default serial port driver on those platforms as well. 465 466 To prevent collisions with the sio(4) driver, the uart(4) driver 467 uses different names for its device nodes. This means the 468 onboard serial port will now most likely be called "ttyu0" 469 instead of "ttyd0". You may need to reconfigure applications to 470 use the new device names. 471 472 When using the serial port as a boot console, be sure to update 473 /boot/device.hints and /etc/ttys before booting the new kernel. 474 If you forget to do so, you can still manually specify the hints 475 at the loader prompt: 476 477 set hint.uart.0.at="isa" 478 set hint.uart.0.port="0x3F8" 479 set hint.uart.0.flags="0x10" 480 set hint.uart.0.irq="4" 481 boot -s 482 48320080609: 484 The gpt(8) utility has been removed. Use gpart(8) to partition 485 disks instead. 486 48720080603: 488 The version that Linuxulator emulates was changed from 2.4.2 489 to 2.6.16. If you experience any problems with Linux binaries 490 please try to set sysctl compat.linux.osrelease to 2.4.2 and 491 if it fixes the problem contact emulation mailing list. 492 49320080525: 494 ISDN4BSD (I4B) was removed from the src tree. You may need to 495 update a your kernel configuration and remove relevant entries. 496 49720080509: 498 I have checked in code to support multiple routing tables. 499 See the man pages setfib(1) and setfib(2). 500 This is a hopefully backwards compatible version, 501 but to make use of it you need to compile your kernel 502 with options ROUTETABLES=2 (or more up to 16). 503 50420080420: 505 The 802.11 wireless support was redone to enable multi-bss 506 operation on devices that are capable. The underlying device 507 is no longer used directly but instead wlanX devices are 508 cloned with ifconfig. This requires changes to rc.conf files. 509 For example, change: 510 ifconfig_ath0="WPA DHCP" 511 to 512 wlans_ath0=wlan0 513 ifconfig_wlan0="WPA DHCP" 514 see rc.conf(5) for more details. In addition, mergemaster of 515 /etc/rc.d is highly recommended. Simultaneous update of userland 516 and kernel wouldn't hurt either. 517 518 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 519 modules were merged into the base wlan module. All references 520 to these modules (e.g. in kernel config files) must be removed. 521 52220080408: 523 psm(4) has gained write(2) support in native operation level. 524 Arbitrary commands can be written to /dev/psm%d and status can 525 be read back from it. Therefore, an application is responsible 526 for status validation and error recovery. It is a no-op in 527 other operation levels. 528 52920080312: 530 Support for KSE threading has been removed from the kernel. To 531 run legacy applications linked against KSE libmap.conf may 532 be used. The following libmap.conf may be used to ensure 533 compatibility with any prior release: 534 535 libpthread.so.1 libthr.so.1 536 libpthread.so.2 libthr.so.2 537 libkse.so.3 libthr.so.3 538 53920080301: 540 The layout of struct vmspace has changed. This affects libkvm 541 and any executables that link against libkvm and use the 542 kvm_getprocs() function. In particular, but not exclusively, 543 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 544 The effects are minimal, but it's advisable to upgrade world 545 nonetheless. 546 54720080229: 548 The latest em driver no longer has support in it for the 549 82575 adapter, this is now moved to the igb driver. The 550 split was done to make new features that are incompatible 551 with older hardware easier to do. 552 55320080220: 554 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 555 likewise the kernel option is now GEOM_LINUX_LVM. 556 55720080211: 558 The default NFS mount mode has changed from UDP to TCP for 559 increased reliability. If you rely on (insecurely) NFS 560 mounting across a firewall you may need to update your 561 firewall rules. 562 56320080208: 564 Belatedly note the addition of m_collapse for compacting 565 mbuf chains. 566 56720080126: 568 The fts(3) structures have been changed to use adequate 569 integer types for their members and so to be able to cope 570 with huge file trees. The old fts(3) ABI is preserved 571 through symbol versioning in libc, so third-party binaries 572 using fts(3) should still work, although they will not take 573 advantage of the extended types. At the same time, some 574 third-party software might fail to build after this change 575 due to unportable assumptions made in its source code about 576 fts(3) structure members. Such software should be fixed 577 by its vendor or, in the worst case, in the ports tree. 578 FreeBSD_version 800015 marks this change for the unlikely 579 case that a portable fix is impossible. 580 58120080123: 582 To upgrade to -current after this date, you must be running 583 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 584 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 585 58620071128: 587 The ADAPTIVE_GIANT kernel option has been retired because its 588 functionality is the default now. 589 59020071118: 591 The AT keyboard emulation of sunkbd(4) has been turned on 592 by default. In order to make the special symbols of the Sun 593 keyboards driven by sunkbd(4) work under X these now have 594 to be configured the same way as Sun USB keyboards driven 595 by ukbd(4) (which also does AT keyboard emulation), f.e.: 596 597 Option "XkbLayout" "us" 598 Option "XkbRules" "xorg" 599 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 600 60120071024: 602 It has been decided that it is desirable to provide ABI 603 backwards compatibility to the FreeBSD 4/5/6 versions of the 604 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 605 broken with the introduction of PCI domain support (see the 606 20070930 entry). Unfortunately, this required the ABI of 607 PCIOCGETCONF to be broken again in order to be able to 608 provide backwards compatibility to the old version of that 609 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 610 again. As for prominent ports this affects neither pciutils 611 nor xorg-server this time, the hal port needs to be rebuilt 612 however. 613 61420071020: 615 The misnamed kthread_create() and friends have been renamed 616 to kproc_create() etc. Many of the callers already 617 used kproc_start().. 618 I will return kthread_create() and friends in a while 619 with implementations that actually create threads, not procs. 620 Renaming corresponds with version 800002. 621 62220071010: 623 RELENG_7 branched. 624 62520071009: 626 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 627 WITHOUT_LIBTHR are set. 628 62920070930: 630 The PCI code has been made aware of PCI domains. This means that 631 the location strings as used by pciconf(8) etc are now in the 632 following format: pci<domain>:<bus>:<device>[:<function>]. It 633 also means that consumers of <sys/pciio.h> potentially need to 634 be recompiled; this includes the hal and xorg-server ports. 635 63620070928: 637 The caching daemon (cached) was renamed to nscd. nscd.conf 638 configuration file should be used instead of cached.conf and 639 nscd_enable, nscd_pidfile and nscd_flags options should be used 640 instead of cached_enable, cached_pidfile and cached_flags in 641 rc.conf. 642 64320070921: 644 The getfacl(1) utility now prints owning user and group name 645 instead of owning uid and gid in the three line comment header. 646 This is the same behavior as getfacl(1) on Solaris and Linux. 647 64820070704: 649 The new IPsec code is now compiled in using the IPSEC option. The 650 IPSEC option now requires "device crypto" be defined in your kernel 651 configuration. The FAST_IPSEC kernel option is now deprecated. 652 65320070702: 654 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 655 note the changed syntax - keep state is now on by default. Also 656 note the fact that ftp-proxy(8) has been changed from bottom up and 657 has been moved from libexec to usr/sbin. Changes in the ALTQ 658 handling also affect users of IPFW's ALTQ capabilities. 659 66020070701: 661 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 662 only IPsec supported by FreeBSD. The new IPsec stack 663 supports both IPv4 and IPv6. The kernel option will change 664 after the code changes have settled in. For now the kernel 665 option IPSEC is deprecated and FAST_IPSEC is the only option, that 666 will change after some settling time. 667 66820070701: 669 The wicontrol(8) utility has been removed from the base system. wi(4) 670 cards should be configured using ifconfig(8), see the man page for more 671 information. 672 67320070612: 674 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 675 instead of the nve(4) driver. Please update your configuration 676 accordingly. 677 67820070612: 679 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 680 database if it is missing or older than the aliases file. If 681 desired, set the new rc.conf option sendmail_rebuild_aliases 682 to "YES" to restore that functionality. 683 68420070612: 685 The IPv4 multicast socket code has been considerably modified, and 686 moved to the file sys/netinet/in_mcast.c. Initial support for the 687 RFC 3678 Source-Specific Multicast Socket API has been added to 688 the IPv4 network stack. 689 690 Strict multicast and broadcast reception is now the default for 691 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 692 has now been removed. 693 694 The RFC 1724 hack for interface selection has been removed; the use 695 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 696 been added to replace it. Consumers such as routed will soon be 697 updated to reflect this. 698 699 These changes affect users who are running routed(8) or rdisc(8) 700 from the FreeBSD base system on point-to-point or unnumbered 701 interfaces. 702 70320070610: 704 The net80211 layer has changed significantly and all wireless 705 drivers that depend on it need to be recompiled. Further these 706 changes require that any program that interacts with the wireless 707 support in the kernel be recompiled; this includes: ifconfig, 708 wpa_supplicant, hostapd, and wlanstats. Users must also, for 709 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 710 if they use modules for wireless support. These modules implement 711 scanning support for station and ap modes, respectively. Failure 712 to load the appropriate module before marking a wireless interface 713 up will result in a message to the console and the device not 714 operating properly. 715 71620070610: 717 The pam_nologin(8) module ceases to provide an authentication 718 function and starts providing an account management function. 719 Consequent changes to /etc/pam.d should be brought in using 720 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 721 need manual editing as follows. Locate this line (or similar): 722 723 auth required pam_nologin.so no_warn 724 725 and change it according to this example: 726 727 account required pam_nologin.so no_warn 728 729 That is, the first word needs to be changed from "auth" to 730 "account". The new line can be moved to the account section 731 within the file for clarity. Not updating pam.conf(5) files 732 will result in nologin(5) ignored by the respective services. 733 73420070529: 735 The ether_ioctl() function has been synchronized with ioctl(2) 736 and ifnet.if_ioctl. Due to that, the size of one of its arguments 737 has changed on 64-bit architectures. All kernel modules using 738 ether_ioctl() need to be rebuilt on such architectures. 739 74020070516: 741 Improved INCLUDE_CONFIG_FILE support has been introduced to the 742 config(8) utility. In order to take advantage of this new 743 functionality, you are expected to recompile and install 744 src/usr.sbin/config. If you don't rebuild config(8), and your 745 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 746 build will be broken because of a missing "kernconfstring" 747 symbol. 748 74920070513: 750 Symbol versioning is enabled by default. To disable it, use 751 option WITHOUT_SYMVER. It is not advisable to attempt to 752 disable symbol versioning once it is enabled; your installworld 753 will break because a symbol version-less libc will get installed 754 before the install tools. As a result, the old install tools, 755 which previously had symbol dependencies to FBSD_1.0, will fail 756 because the freshly installed libc will not have them. 757 758 The default threading library (providing "libpthread") has been 759 changed to libthr. If you wish to have libkse as your default, 760 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 761 76220070423: 763 The ABI breakage in sendmail(8)'s libmilter has been repaired 764 so it is no longer necessary to recompile mail filters (aka, 765 milters). If you recompiled mail filters after the 20070408 766 note, it is not necessary to recompile them again. 767 76820070417: 769 The new trunk(4) driver has been renamed to lagg(4) as it better 770 reflects its purpose. ifconfig will need to be recompiled. 771 77220070408: 773 sendmail(8) has been updated to version 8.14.1. Mail filters 774 (aka, milters) compiled against the libmilter included in the 775 base operating system should be recompiled. 776 77720070302: 778 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 779 In order to use them one must agree to the respective LICENSE in 780 share/doc/legal and define legal.intel_<name>.license_ack=1 via 781 loader.conf(5) or kenv(1). Make sure to deinstall the now 782 deprecated modules from the respective firmware ports. 783 78420070228: 785 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 786 were removed from FreeBSD's libc. These originally came from INRIA 787 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 788 deprecated in previous releases. 789 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 790 replace it as a more portable (and re-entrant) API. 791 79220070224: 793 To support interrupt filtering a modification to the newbus API 794 has occurred, ABI was broken and __FreeBSD_version was bumped 795 to 700031. Please make sure that your kernel and modules are in 796 sync. For more info: 797 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 798 79920070224: 800 The IPv6 multicast forwarding code may now be loaded into GENERIC 801 kernels by loading the ip_mroute.ko module. This is built into the 802 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 803 set; see src.conf(5) for more information. 804 80520070214: 806 The output of netstat -r has changed. Without -n, we now only 807 print a "network name" without the prefix length if the network 808 address and mask exactly match a Class A/B/C network, and an entry 809 exists in the nsswitch "networks" map. 810 With -n, we print the full unabbreviated CIDR network prefix in 811 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 812 This change is in preparation for changes such as equal-cost 813 multipath, and to more generally assist operational deployment 814 of FreeBSD as a modern IPv4 router. 815 81620070210: 817 PIM has been turned on by default in the IPv4 multicast 818 routing code. The kernel option 'PIM' has now been removed. 819 PIM is now built by default if option 'MROUTING' is specified. 820 It may now be loaded into GENERIC kernels by loading the 821 ip_mroute.ko module. 822 82320070207: 824 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 825 has been removed. Its functionality may be achieved by explicitly 826 configuring gif(4) interfaces and using the 'phyint' keyword in 827 mrouted.conf. 828 XORP does not support source-routed IPv4 multicast tunnels nor the 829 integrated IPIP tunneling, therefore it is not affected by this 830 change. The __FreeBSD_version macro has been bumped to 700030. 831 83220061221: 833 Support for PCI Message Signalled Interrupts has been 834 re-enabled in the bge driver, only for those chips which are 835 believed to support it properly. If there are any problems, 836 MSI can be disabled completely by setting the 837 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 838 in the loader. 839 84020061214: 841 Support for PCI Message Signalled Interrupts has been 842 disabled again in the bge driver. Many revisions of the 843 hardware fail to support it properly. Support can be 844 re-enabled by removing the #define of BGE_DISABLE_MSI in 845 "src/sys/dev/bge/if_bge.c". 846 84720061214: 848 Support for PCI Message Signalled Interrupts has been added 849 to the bge driver. If there are any problems, MSI can be 850 disabled completely by setting the 'hw.pci.enable_msi' and 851 'hw.pci.enable_msix' tunables to 0 in the loader. 852 85320061205: 854 The removal of several facets of the experimental Threading 855 system from the kernel means that the proc and thread structures 856 have changed quite a bit. I suggest all kernel modules that might 857 reference these structures be recompiled.. Especially the 858 linux module. 859 86020061126: 861 Sound infrastructure has been updated with various fixes and 862 improvements. Most of the changes are pretty much transparent, 863 with exceptions of followings: 864 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 865 moved to their own dev sysctl nodes, for example: 866 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 867 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 868 own chardev in the form of "dsp%d.<function>%d", where <function> 869 is p = playback, r = record and v = virtual, respectively. Users 870 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 871 This does not affect those who are using "/dev/dsp". 872 87320061122: 874 geom(4)'s gmirror(8) class metadata structure has been 875 rev'd from v3 to v4. If you update across this point and 876 your metadata is converted for you, you will not be easily 877 able to downgrade since the /boot/kernel.old/geom_mirror.ko 878 kernel module will be unable to read the v4 metadata. You 879 can resolve this by doing from the loader(8) prompt: 880 881 set vfs.root.mountfrom="ufs:/dev/XXX" 882 883 where XXX is the root slice of one of the disks that composed 884 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 885 the array the same way you built it originally. 886 88720061122: 888 The following binaries have been disconnected from the build: 889 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 890 and mount_std. The functionality of these programs has been 891 moved into the mount program. For example, to mount a devfs 892 filesystem, instead of using mount_devfs, use: "mount -t devfs". 893 This does not affect entries in /etc/fstab, since entries in 894 /etc/fstab are always processed with "mount -t fstype". 895 89620061113: 897 Support for PCI Message Signalled Interrupts on i386 and amd64 898 has been added to the kernel and various drivers will soon be 899 updated to use MSI when it is available. If there are any problems, 900 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 901 and 'hw.pci.enable_msix' tunables to 0 in the loader. 902 90320061110: 904 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 905 The lockmgr object layout has been changed as a result of having 906 a lock_object embedded in it. As a consequence all file system 907 kernel modules must be re-compiled. The mutex profiling man page 908 has not yet been updated to reflect this change. 909 91020061026: 911 KSE in the kernel has now been made optional and turned on by 912 default. Use 'nooption KSE' in your kernel config to turn it 913 off. All kernel modules *must* be recompiled after this change. 914 There-after, modules from a KSE kernel should be compatible with 915 modules from a NOKSE kernel due to the temporary padding fields 916 added to 'struct proc'. 917 91820060929: 919 mrouted and its utilities have been removed from the base system. 920 92120060927: 922 Some ioctl(2) command codes have changed. Full backward ABI 923 compatibility is provided if the "options COMPAT_FREEBSD6" is 924 present in the kernel configuration file. Make sure to add 925 this option to your kernel config file, or recompile X.Org 926 and the rest of ports; otherwise they may refuse to work. 927 92820060924: 929 tcpslice has been removed from the base system. 930 93120060913: 932 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 933 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 934 systat needs to be rebuilt. 935 93620060903: 937 libpcap updated to v0.9.4 and tcpdump to v3.9.4 938 93920060816: 940 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 941 for IPFIREWALL_FORWARD is now as it was before when it was first 942 committed and for years after. The behaviour is now ON. 943 94420060725: 945 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 946 Now it can decrypt files created from different architectures. 947 Unfortunately, it is no longer able to decrypt a cipher text 948 generated with an older version on 64 bit architectures. 949 If you have such a file, you need old utility to decrypt it. 950 95120060709: 952 The interface version of the i4b kernel part has changed. So 953 after updating the kernel sources and compiling a new kernel, 954 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 955 be rebuilt, and vice versa. 956 95720060627: 958 The XBOX kernel now defaults to the nfe(4) driver instead of 959 the nve(4) driver. Please update your configuration 960 accordingly. 961 96220060514: 963 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 964 PCnet family of NICs has been removed. The new le(4) driver serves 965 as an equivalent but cross-platform replacement with the pcn(4) 966 driver still providing performance-optimized support for the subset 967 of AMD Am79C971 PCnet-FAST and greater chips as before. 968 96920060511: 970 The machdep.* sysctls and the adjkerntz utility have been 971 modified a bit. The new adjkerntz utility uses the new 972 sysctl names and sysctlbyname() calls, so it may be impossible 973 to run an old /sbin/adjkerntz utility in single-user mode 974 with a new kernel. Replace the `adjkerntz -i' step before 975 `make installworld' with: 976 977 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 978 979 and proceed as usual with the rest of the installworld-stage 980 steps. Otherwise, you risk installing binaries with their 981 timestamp set several hours in the future, especially if 982 you are running with local time set to GMT+X hours. 983 98420060412: 985 The ip6fw utility has been removed. The behavior provided by 986 ip6fw has been in ipfw2 for a good while and the rc.d scripts 987 have been updated to deal with it. There are some rules that 988 might not migrate cleanly. Use rc.firewall6 as a template to 989 rewrite rules. 990 99120060428: 992 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 993 attachments have been removed. Make sure to configure scc(4) 994 on sparc64. Note also that by default puc(4) will use uart(4) 995 and not sio(4) for serial ports because interrupt handling has 996 been optimized for multi-port serial cards and only uart(4) 997 implements the interface to support it. 998 99920060330: 1000 The scc(4) driver replaces puc(4) for Serial Communications 1001 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1002 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1003 configuration to make sure that the serial ports remain 1004 functional. 1005 100620060317: 1007 Most world/kernel related NO_* build options changed names. 1008 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1009 after FreeBSD ports) and should be set in /etc/src.conf 1010 (the src.conf(5) manpage is provided). Full backwards 1011 compatibility is maintained for the time being though it's 1012 highly recommended to start moving old options out of the 1013 system-wide /etc/make.conf file into the new /etc/src.conf 1014 while also properly renaming them. More conversions will 1015 likely follow. Posting to current@: 1016 1017 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1018 101920060305: 1020 The NETSMBCRYPTO kernel option has been retired because its 1021 functionality is always included in NETSMB and smbfs.ko now. 1022 102320060303: 1024 The TDFX_LINUX kernel option was retired and replaced by the 1025 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1026 kernel module. Loading it alone should suffice to get 3dfx support 1027 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1028 its dependencies. 1029 103020060204: 1031 The 'audit' group was added to support the new auditing functionality 1032 in the base system. Be sure to follow the directions for updating, 1033 including the requirement to run mergemaster -p. 1034 103520060201: 1036 The kernel ABI to file system modules was changed on i386. 1037 Please make sure that your kernel and modules are in sync. 1038 103920060118: 1040 This actually occured some time ago, but installing the kernel 1041 now also installs a bunch of symbol files for the kernel modules. 1042 This increases the size of /boot/kernel to about 67Mbytes. You 1043 will need twice this if you will eventually back this up to kernel.old 1044 on your next install. 1045 If you have a shortage of room in your root partition, you should add 1046 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1047 to your /etc/make.conf. 1048 104920060113: 1050 libc's malloc implementation has been replaced. This change has the 1051 potential to uncover application bugs that previously went unnoticed. 1052 See the malloc(3) manual page for more details. 1053 105420060112: 1055 The generic netgraph(4) cookie has been changed. If you upgrade 1056 kernel passing this point, you also need to upgrade userland 1057 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1058 105920060106: 1060 si(4)'s device files now contain the unit number. 1061 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1062 106320060106: 1064 The kernel ABI was mostly destroyed due to a change in the size 1065 of struct lock_object which is nested in other structures such 1066 as mutexes which are nested in all sorts of other structures. 1067 Make sure your kernel and modules are in sync. 1068 106920051231: 1070 The page coloring algorithm in the VM subsystem was converted 1071 from tuning with kernel options to autotuning. Please remove 1072 any PQ_* option except PQ_NOOPT from your kernel config. 1073 107420051211: 1075 The net80211-related tools in the tools/tools/ath directory 1076 have been moved to tools/tools/net80211 and renamed with a 1077 "wlan" prefix. Scripts that use them should be adjusted 1078 accordingly. 1079 108020051202: 1081 Scripts in the local_startup directories (as defined in 1082 /etc/defaults/rc.conf) that have the new rc.d semantics will 1083 now be run as part of the base system rcorder. If there are 1084 errors or problems with one of these local scripts, it could 1085 cause boot problems. If you encounter such problems, boot in 1086 single user mode, remove that script from the */rc.d directory. 1087 Please report the problem to the port's maintainer, and the 1088 freebsd-ports@freebsd.org mailing list. 1089 109020051129: 1091 The nodev mount option was deprecated in RELENG_6 (where it 1092 was a no-op), and is now unsupported. If you have nodev or dev listed 1093 in /etc/fstab, remove it, otherwise it will result in a mount error. 1094 109520051129: 1096 ABI between ipfw(4) and ipfw(8) has been changed. You need 1097 to rebuild ipfw(8) when rebuilding kernel. 1098 109920051108: 1100 rp(4)'s device files now contain the unit number. 1101 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1102 110320051029: 1104 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1105 Its /etc/rc.conf.d configuration file has been `ppp' from 1106 the beginning, and hence there is no need to touch it. 1107 110820051014: 1109 Now most modules get their build-time options from the kernel 1110 configuration file. A few modules still have fixed options 1111 due to their non-conformant implementation, but they will be 1112 corrected eventually. You may need to review the options of 1113 the modules in use, explicitly specify the non-default options 1114 in the kernel configuration file, and rebuild the kernel and 1115 modules afterwards. 1116 111720051001: 1118 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1119 to turn polling(4) on your interfaces. 1120 112120050927: 1122 The old bridge(4) implementation was retired. The new 1123 if_bridge(4) serves as a full functional replacement. 1124 112520050722: 1126 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1127 to conform to POSIX-2001. This change broke an ABI 1128 compatibility on 64 bit architecture. You have to recompile 1129 userland programs that use getaddrinfo(3) on 64 bit 1130 architecture. 1131 113220050711: 1133 RELENG_6 branched here. 1134 113520050629: 1136 The pccard_ifconfig rc.conf variable has been removed and a new 1137 variable, ifconfig_DEFAULT has been introduced. Unlike 1138 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1139 do not have ifconfig_ifn entries rather than just those in 1140 removable_interfaces. 1141 114220050616: 1143 Some previous versions of PAM have permitted the use of 1144 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1145 to third party PAM modules in /usr/local/lib. A change has been 1146 made to require the use of absolute paths in order to avoid 1147 ambiguity and dependence on library path configuration, which may 1148 affect existing configurations. 1149 115020050610: 1151 Major changes to network interface API. All drivers must be 1152 recompiled. Drivers not in the base system will need to be 1153 updated to the new APIs. 1154 115520050609: 1156 Changes were made to kinfo_proc in sys/user.h. Please recompile 1157 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1158 will not behave correctly. 1159 1160 The API and ABI for hwpmc(4) have changed with the addition 1161 of sampling support. Please recompile lib/libpmc(3) and 1162 usr.sbin/{pmcstat,pmccontrol}. 1163 116420050606: 1165 The OpenBSD dhclient was imported in place of the ISC dhclient 1166 and the network interface configuration scripts were updated 1167 accordingly. If you use DHCP to configure your interfaces, you 1168 must now run devd. Also, DNS updating was lost so you will need 1169 to find a workaround if you use this feature. 1170 1171 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1172 sure to run mergemaster -p (like you are supposed to do every time 1173 anyway). 1174 117520050605: 1176 if_bridge was added to the tree. This has changed struct ifnet. 1177 Please recompile userland and all network related modules. 1178 117920050603: 1180 The n_net of a struct netent was changed to an uint32_t, and 1181 1st argument of getnetbyaddr() was changed to an uint32_t, to 1182 conform to POSIX-2001. These changes broke an ABI 1183 compatibility on 64 bit architecture. With these changes, 1184 shlib major of libpcap was bumped. You have to recompile 1185 userland programs that use getnetbyaddr(3), getnetbyname(3), 1186 getnetent(3) and/or libpcap on 64 bit architecture. 1187 118820050528: 1189 Kernel parsing of extra options on '#!' first lines of shell 1190 scripts has changed. Lines with multiple options likely will 1191 fail after this date. For full details, please see 1192 http://people.freebsd.org/~gad/Updating-20050528.txt 1193 119420050503: 1195 The packet filter (pf) code has been updated to OpenBSD 3.7 1196 Please note the changed anchor syntax and the fact that 1197 authpf(8) now needs a mounted fdescfs(5) to function. 1198 119920050415: 1200 The NO_MIXED_MODE kernel option has been removed from the i386 1201 amd64 platforms as its use has been superceded by the new local 1202 APIC timer code. Any kernel config files containing this option 1203 should be updated. 1204 120520050227: 1206 The on-disk format of LC_CTYPE files was changed to be machine 1207 independent. Please make sure NOT to use NO_CLEAN buildworld 1208 when crossing this point. Crossing this point also requires 1209 recompile or reinstall of all locale depended packages. 1210 121120050225: 1212 The ifi_epoch member of struct if_data has been changed to 1213 contain the uptime at which the interface was created or the 1214 statistics zeroed rather then the wall clock time because 1215 wallclock time may go backwards. This should have no impact 1216 unless an snmp implementation is using this value (I know of 1217 none at this point.) 1218 121920050224: 1220 The acpi_perf and acpi_throttle drivers are now part of the 1221 acpi(4) main module. They are no longer built separately. 1222 122320050223: 1224 The layout of struct image_params has changed. You have to 1225 recompile all compatibility modules (linux, svr4, etc) for use 1226 with the new kernel. 1227 122820050223: 1229 The p4tcc driver has been merged into cpufreq(4). This makes 1230 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1231 compile in "device cpufreq" to restore this functionality. 1232 123320050220: 1234 The responsibility of recomputing the file system summary of 1235 a SoftUpdates-enabled dirty volume has been transferred to the 1236 background fsck. A rebuild of fsck(8) utility is recommended 1237 if you have updated the kernel. 1238 1239 To get the old behavior (recompute file system summary at mount 1240 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1241 mounting the new volume. 1242 124320050206: 1244 The cpufreq import is complete. As part of this, the sysctls for 1245 acpi(4) throttling have been removed. The power_profile script 1246 has been updated, so you can use performance/economy_cpu_freq in 1247 rc.conf(5) to set AC on/offline cpu frequencies. 1248 124920050206: 1250 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1251 requires recompiling libnetgraph and userland netgraph utilities. 1252 125320050114: 1254 Support for abbreviated forms of a number of ipfw options is 1255 now deprecated. Warnings are printed to stderr indicating the 1256 correct full form when a match occurs. Some abbreviations may 1257 be supported at a later date based on user feedback. To be 1258 considered for support, abbreviations must be in use prior to 1259 this commit and unlikely to be confused with current key words. 1260 126120041221: 1262 By a popular demand, a lot of NOFOO options were renamed 1263 to NO_FOO (see bsd.compat.mk for a full list). The old 1264 spellings are still supported, but will cause annoying 1265 warnings on stderr. Make sure you upgrade properly (see 1266 the COMMON ITEMS: section later in this file). 1267 126820041219: 1269 Auto-loading of ancillary wlan modules such as wlan_wep has 1270 been temporarily disabled; you need to statically configure 1271 the modules you need into your kernel or explicitly load them 1272 prior to use. Specifically, if you intend to use WEP encryption 1273 with an 802.11 device load/configure wlan_wep; if you want to 1274 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1275 and wlan_xauth as required. 1276 127720041213: 1278 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1279 (``enable lqr''), older versions would revert to LCP ECHO mode on 1280 negotiation failure. Now, ``enable echo'' is required for this 1281 behaviour. The ppp version number has been bumped to 3.4.2 to 1282 reflect the change. 1283 128420041201: 1285 The wlan support has been updated to split the crypto support 1286 into separate modules. For static WEP you must configure the 1287 wlan_wep module in your system or build and install the module 1288 in place where it can be loaded (the kernel will auto-load 1289 the module when a wep key is configured). 1290 129120041201: 1292 The ath driver has been updated to split the tx rate control 1293 algorithm into a separate module. You need to include either 1294 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1295 129620041116: 1297 Support for systems with an 80386 CPU has been removed. Please 1298 use FreeBSD 5.x or earlier on systems with an 80386. 1299 130020041110: 1301 We have had a hack which would mount the root filesystem 1302 R/W if the device were named 'md*'. As part of the vnode 1303 work I'm doing I have had to remove this hack. People 1304 building systems which use preloaded MD root filesystems 1305 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1306 their /etc/rc scripts. 1307 130820041104: 1309 FreeBSD 5.3 shipped here. 1310 131120041102: 1312 The size of struct tcpcb has changed again due to the removal 1313 of RFC1644 T/TCP. You have to recompile userland programs that 1314 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1315 131620041022: 1317 The size of struct tcpcb has changed. You have to recompile 1318 userland programs that read kmem for tcp sockets directly 1319 (netstat, sockstat, etc.) 1320 132120041016: 1322 RELENG_5 branched here. For older entries, please see updating 1323 in the RELENG_5 branch. 1324 1325COMMON ITEMS: 1326 1327 General Notes 1328 ------------- 1329 Avoid using make -j when upgrading. From time to time in the 1330 past there have been problems using -j with buildworld and/or 1331 installworld. This is especially true when upgrading between 1332 "distant" versions (eg one that cross a major release boundary 1333 or several minor releases, or when several months have passed 1334 on the -current branch). 1335 1336 Sometimes, obscure build problems are the result of environment 1337 poisoning. This can happen because the make utility reads its 1338 environment when searching for values for global variables. 1339 To run your build attempts in an "environmental clean room", 1340 prefix all make commands with 'env -i '. See the env(1) manual 1341 page for more details. 1342 1343 When upgrading from one major version to another it is generally 1344 best to upgrade to the latest code in the currently installed branch 1345 first, then do an upgrade to the new branch. This is the best-tested 1346 upgrade path, and has the highest probability of being successful. 1347 Please try this approach before reporting problems with a major 1348 version upgrade. 1349 1350 To build a kernel 1351 ----------------- 1352 If you are updating from a prior version of FreeBSD (even one just 1353 a few days old), you should follow this procedure. It is the most 1354 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1355 1356 make kernel-toolchain 1357 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1358 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1359 1360 To test a kernel once 1361 --------------------- 1362 If you just want to boot a kernel once (because you are not sure 1363 if it works, or if you want to boot a known bad kernel to provide 1364 debugging information) run 1365 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1366 nextboot -k testkernel 1367 1368 To just build a kernel when you know that it won't mess you up 1369 -------------------------------------------------------------- 1370 This assumes you are already running a 5.X system. Replace 1371 ${arch} with the architecture of your machine (e.g. "i386", 1372 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1373 1374 cd src/sys/${arch}/conf 1375 config KERNEL_NAME_HERE 1376 cd ../compile/KERNEL_NAME_HERE 1377 make depend 1378 make 1379 make install 1380 1381 If this fails, go to the "To build a kernel" section. 1382 1383 To rebuild everything and install it on the current system. 1384 ----------------------------------------------------------- 1385 # Note: sometimes if you are running current you gotta do more than 1386 # is listed here if you are upgrading from a really old current. 1387 1388 <make sure you have good level 0 dumps> 1389 make buildworld 1390 make kernel KERNCONF=YOUR_KERNEL_HERE 1391 [1] 1392 <reboot in single user> [3] 1393 mergemaster -p [5] 1394 make installworld 1395 make delete-old 1396 mergemaster [4] 1397 <reboot> 1398 1399 1400 To cross-install current onto a separate partition 1401 -------------------------------------------------- 1402 # In this approach we use a separate partition to hold 1403 # current's root, 'usr', and 'var' directories. A partition 1404 # holding "/", "/usr" and "/var" should be about 2GB in 1405 # size. 1406 1407 <make sure you have good level 0 dumps> 1408 <boot into -stable> 1409 make buildworld 1410 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1411 <maybe newfs current's root partition> 1412 <mount current's root partition on directory ${CURRENT_ROOT}> 1413 make installworld DESTDIR=${CURRENT_ROOT} 1414 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1415 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1416 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1417 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1418 <reboot into current> 1419 <do a "native" rebuild/install as described in the previous section> 1420 <maybe install compatibility libraries from ports/misc/compat*> 1421 <reboot> 1422 1423 1424 To upgrade in-place from 5.x-stable to current 1425 ---------------------------------------------- 1426 <make sure you have good level 0 dumps> 1427 make buildworld [9] 1428 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1429 [1] 1430 <reboot in single user> [3] 1431 mergemaster -p [5] 1432 make installworld 1433 make delete-old 1434 mergemaster -i [4] 1435 <reboot> 1436 1437 Make sure that you've read the UPDATING file to understand the 1438 tweaks to various things you need. At this point in the life 1439 cycle of current, things change often and you are on your own 1440 to cope. The defaults can also change, so please read ALL of 1441 the UPDATING entries. 1442 1443 Also, if you are tracking -current, you must be subscribed to 1444 freebsd-current@freebsd.org. Make sure that before you update 1445 your sources that you have read and understood all the recent 1446 messages there. If in doubt, please track -stable which has 1447 much fewer pitfalls. 1448 1449 [1] If you have third party modules, such as vmware, you 1450 should disable them at this point so they don't crash your 1451 system on reboot. 1452 1453 [3] From the bootblocks, boot -s, and then do 1454 fsck -p 1455 mount -u / 1456 mount -a 1457 cd src 1458 adjkerntz -i # if CMOS is wall time 1459 Also, when doing a major release upgrade, it is required that 1460 you boot into single user mode to do the installworld. 1461 1462 [4] Note: This step is non-optional. Failure to do this step 1463 can result in a significant reduction in the functionality of the 1464 system. Attempting to do it by hand is not recommended and those 1465 that pursue this avenue should read this file carefully, as well 1466 as the archives of freebsd-current and freebsd-hackers mailing lists 1467 for potential gotchas. 1468 1469 [5] Usually this step is a noop. However, from time to time 1470 you may need to do this if you get unknown user in the following 1471 step. It never hurts to do it all the time. You may need to 1472 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1473 install) after the buildworld before this step if you last updated 1474 from current before 20020224 or from -stable before 20020408. 1475 1476 [8] In order to have a kernel that can run the 4.x binaries 1477 needed to do an installworld, you must include the COMPAT_FREEBSD4 1478 option in your kernel. Failure to do so may leave you with a system 1479 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1480 is required to run the 5.x binaries on more recent kernels. 1481 1482 Make sure that you merge any new devices from GENERIC since the 1483 last time you updated your kernel config file. 1484 1485 [9] When checking out sources, you must include the -P flag to have 1486 cvs prune empty directories. 1487 1488 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1489 "?=" instead of the "=" assignment operator, so that buildworld can 1490 override the CPUTYPE if it needs to. 1491 1492 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1493 not on the command line, or in /etc/make.conf. buildworld will 1494 warn if it is improperly defined. 1495FORMAT: 1496 1497This file contains a list, in reverse chronological order, of major 1498breakages in tracking -current. Not all things will be listed here, 1499and it only starts on October 16, 2004. Updating files can found in 1500previous releases if your system is older than this. 1501 1502Copyright information: 1503 1504Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1505 1506Redistribution, publication, translation and use, with or without 1507modification, in full or in part, in any form or format of this 1508document are permitted without further permission from the author. 1509 1510THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1511IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1512WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1513DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1514INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1515(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1516SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1517HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1518STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1519IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1520POSSIBILITY OF SUCH DAMAGE. 1521 1522If you find this document useful, and you want to, you may buy the 1523author a beer. 1524 1525Contact Warner Losh if you have any questions about your use of 1526this document. 1527 1528$FreeBSD: head/UPDATING 192502 2009-05-21 01:48:42Z thompsa $ 1529