UPDATING revision 193011
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 2520090528: 26 The compiling option ADAPTIVE_SX has been retired while it has been 27 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 28 The KPI for sx_init_flags() changes as accepting flags: 29 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 30 has been introduced in order to handle the reversed logic. 31 Bump __FreeBSD_version to 800092. 32 3320090527: 34 Add support for hierarchical jails. Remove global securelevel. 35 Bump __FreeBSD_version to 800091. 36 3720090523: 38 The layout of struct vnet_net has changed, therefore modules 39 need to be rebuilt. 40 Bump __FreeBSD_version to 800090. 41 4220090523: 43 The newly imported zic(8) produces a new format in the 44 output. Please run tzsetup(8) to install the newly created 45 data to /etc/localtime. 46 4720090520: 48 The sysctl tree for the usb stack has renamed from hw.usb2.* to 49 hw.usb.* and is now consistent again with previous releases. 50 5120090520: 52 802.11 monitor mode support was revised and driver api's 53 were changed. Drivers dependent on net80211 now support 54 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 55 user-visible data structures were changed but applications 56 that use DLT_IEEE802_11 may require changes. 57 Bump __FreeBSD_version to 800088. 58 5920090430: 60 The layout of the following structs has changed: sysctl_oid, 61 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 62 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 63 panics may be experienced. World rebuild is required for 64 correctly checking networking state from userland. 65 Bump __FreeBSD_version to 800085. 66 6720090429: 68 MLDv2 and Source-Specific Multicast (SSM) have been merged 69 to the IPv6 stack. VIMAGE hooks are in but not yet used. 70 The implementation of SSM within FreeBSD's IPv6 stack closely 71 follows the IPv4 implementation. 72 73 For kernel developers: 74 75 * The most important changes are that the ip6_output() and 76 ip6_input() paths no longer take the IN6_MULTI_LOCK, 77 and this lock has been downgraded to a non-recursive mutex. 78 79 * As with the changes to the IPv4 stack to support SSM, filtering 80 of inbound multicast traffic must now be performed by transport 81 protocols within the IPv6 stack. This does not apply to TCP and 82 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 83 84 * The KPIs used by IPv6 multicast are similar to those used by 85 the IPv4 stack, with the following differences: 86 * im6o_mc_filter() is analogous to imo_multicast_filter(). 87 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 88 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 89 * IN6_LOOKUP_MULTI() has been deprecated and removed. 90 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 91 for MLDv1 have an additional 'timer' argument which is used to 92 jitter the initial membership report for the solicited-node 93 multicast membership on-link. 94 * This is not strictly needed for MLDv2, which already jitters 95 its report transmissions. However, the 'timer' argument is 96 preserved in case MLDv1 is active on the interface. 97 98 * The KAME linked-list based IPv6 membership implementation has 99 been refactored to use a vector similar to that used by the IPv4 100 stack. 101 Code which maintains a list of its own multicast memberships 102 internally, e.g. carp, has been updated to reflect the new 103 semantics. 104 105 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 106 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 107 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 108 implementation constraint which needs to be addressed in HEAD. 109 110 For application developers: 111 112 * The changes are broadly similar to those made for the IPv4 113 stack. 114 115 * The use of IPv4 and IPv6 multicast socket options on the same 116 socket, using mapped addresses, HAS NOT been tested or supported. 117 118 * There are a number of issues with the implementation of various 119 IPv6 multicast APIs which need to be resolved in the API surface 120 before the implementation is fully compatible with KAME userland 121 use, and these are mostly to do with interface index treatment. 122 123 * The literature available discusses the use of either the delta / ASM 124 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 125 using setsourcefilter(3)/getsourcefilter(3). For more information 126 please refer to RFC 3768, 'Socket Interface Extensions for 127 Multicast Source Filters'. 128 129 * Applications which use the published RFC 3678 APIs should be fine. 130 131 For systems administrators: 132 133 * The mtest(8) utility has been refactored to support IPv6, in 134 addition to IPv4. Interface addresses are no longer accepted 135 as arguments, their names must be used instead. The utility 136 will map the interface name to its first IPv4 address as 137 returned by getifaddrs(3). 138 139 * The ifmcstat(8) utility has also been updated to print the MLDv2 140 endpoint state and source filter lists via sysctl(3). 141 142 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 143 loopback of IPv6 multicast datagrams by default; it defaults to 1 144 to preserve the existing behaviour. Disabling multicast loopback is 145 recommended for optimal system performance. 146 147 * The IPv6 MROUTING code has been changed to examine this sysctl 148 instead of attempting to perform a group lookup before looping 149 back forwarded datagrams. 150 151 Bump __FreeBSD_version to 800084. 152 15320090422: 154 Implement low-level Bluetooth HCI API. 155 Bump __FreeBSD_version to 800083. 156 15720090419: 158 The layout of struct malloc_type, used by modules to register new 159 memory allocation types, has changed. Most modules will need to 160 be rebuilt or panics may be experienced. 161 Bump __FreeBSD_version to 800081. 162 16320090415: 164 Anticipate overflowing inp_flags - add inp_flags2. 165 This changes most offsets in inpcb, so checking v4 connection 166 state will require a world rebuild. 167 Bump __FreeBSD_version to 800080. 168 16920090415: 170 Add an llentry to struct route and struct route_in6. Modules 171 embedding a struct route will need to be recompiled. 172 Bump __FreeBSD_version to 800079. 173 17420090414: 175 The size of rt_metrics_lite and by extension rtentry has changed. 176 Networking administration apps will need to be recompiled. 177 The route command now supports show as an alias for get, weighting 178 of routes, sticky and nostick flags to alter the behavior of stateful 179 load balancing. 180 Bump __FreeBSD_version to 800078. 181 18220090408: 183 Do not use Giant for kbdmux(4) locking. This is wrong and 184 apparently causing more problems than it solves. This will 185 re-open the issue where interrupt handlers may race with 186 kbdmux(4) in polling mode. Typical symptoms include (but 187 not limited to) duplicated and/or missing characters when 188 low level console functions (such as gets) are used while 189 interrupts are enabled (for example geli password prompt, 190 mountroot prompt etc.). Disabling kbdmux(4) may help. 191 19220090407: 193 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 194 kernel modules referencing any of the above need to be recompiled. 195 Bump __FreeBSD_version to 800075. 196 19720090320: 198 GEOM_PART has become the default partition slicer for storage devices, 199 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 200 introduces some changes: 201 202 MSDOS/EBR: the devices created from MSDOS extended partition entries 203 (EBR) can be named differently than with GEOM_MBR and are now symlinks 204 to devices with offset-based names. fstabs may need to be modified. 205 206 BSD: the "geometry does not match label" warning is harmless in most 207 cases but it points to problems in file system misalignment with 208 disk geometry. The "c" partition is now implicit, covers the whole 209 top-level drive and cannot be (mis)used by users. 210 211 General: Kernel dumps are now not allowed to be written to devices 212 whose partition types indicate they are meant to be used for file 213 systems (or, in case of MSDOS partitions, as something else than 214 the "386BSD" type). 215 216 Most of these changes date approximately from 200812. 217 21820090319: 219 The uscanner(4) driver has been removed from the kernel. This follows 220 Linux removing theirs in 2.6 and making libusb the default interface 221 (supported by sane). 222 22320090319: 224 The multicast forwarding code has been cleaned up. netstat(1) 225 only relies on KVM now for printing bandwidth upcall meters. 226 The IPv4 and IPv6 modules are split into ip_mroute_mod and 227 ip6_mroute_mod respectively. The config(5) options for statically 228 compiling this code remain the same, i.e. 'options MROUTING'. 229 23020090315: 231 Support for the IFF_NEEDSGIANT network interface flag has been 232 removed, which means that non-MPSAFE network device drivers are no 233 longer supported. In particular, if_ar, if_sr, and network device 234 drivers from the old (legacy) USB stack can no longer be built or 235 used. 236 23720090313: 238 POSIX.1 Native Language Support (NLS) has been enabled in libc and 239 a bunch of new language catalog files have also been added. 240 This means that some common libc messages are now localized and 241 they depend on the LC_MESSAGES environmental variable. 242 24320090313: 244 The k8temp(4) driver has been renamed to amdtemp(4) since 245 support for K10 and K11 CPU families was added. 246 24720090309: 248 IGMPv3 and Source-Specific Multicast (SSM) have been merged 249 to the IPv4 stack. VIMAGE hooks are in but not yet used. 250 251 For kernel developers, the most important changes are that the 252 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 253 and this lock has been downgraded to a non-recursive mutex. 254 255 Transport protocols (UDP, Raw IP) are now responsible for filtering 256 inbound multicast traffic according to group membership and source 257 filters. The imo_multicast_filter() KPI exists for this purpose. 258 Transports which do not use multicast (SCTP, TCP) already reject 259 multicast by default. Forwarding and receive performance may improve 260 as a mutex acquisition is no longer needed in the ip_input() 261 low-level input path. in_addmulti() and in_delmulti() are shimmed 262 to new KPIs which exist to support SSM in-kernel. 263 264 For application developers, it is recommended that loopback of 265 multicast datagrams be disabled for best performance, as this 266 will still cause the lock to be taken for each looped-back 267 datagram transmission. The net.inet.ip.mcast.loop sysctl may 268 be tuned to 0 to disable loopback by default; it defaults to 1 269 to preserve the existing behaviour. 270 271 For systems administrators, to obtain best performance with 272 multicast reception and multiple groups, it is always recommended 273 that a card with a suitably precise hash filter is used. Hash 274 collisions will still result in the lock being taken within the 275 transport protocol input path to check group membership. 276 277 If deploying FreeBSD in an environment with IGMP snooping switches, 278 it is recommended that the net.inet.igmp.sendlocal sysctl remain 279 enabled; this forces 224.0.0.0/24 group membership to be announced 280 via IGMP. 281 282 The size of 'struct igmpstat' has changed; netstat needs to be 283 recompiled to reflect this. 284 Bump __FreeBSD_version to 800070. 285 28620090309: 287 libusb20.so.1 is now installed as libusb.so.1 and the ports system 288 updated to use it. This requires a buildworld/installworld in order to 289 update the library and dependencies (usbconfig, etc). Its advisable to 290 rebuild all ports which uses libusb. More specific directions are given 291 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 292 libusb are no longer required and can be removed. 293 29420090302: 295 A workaround is committed to allow the creation of System V shared 296 memory segment of size > 2 GB on the 64-bit architectures. 297 Due to a limitation of the existing ABI, the shm_segsz member 298 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 299 wrong for large segments. Note that limits must be explicitly 300 raised to allow such segments to be created. 301 30220090301: 303 The layout of struct ifnet has changed, requiring a rebuild of all 304 network device driver modules. 305 30620090227: 307 The /dev handling for the new USB stack has changed, a 308 buildworld/installworld is required for libusb20. 309 31020090223: 311 The new USB2 stack has now been permanently moved in and all kernel and 312 module names reverted to their previous values (eg, usb, ehci, ohci, 313 ums, ...). The old usb stack can be compiled in by prefixing the name 314 with the letter 'o', the old usb modules have been removed. 315 Updating entry 20090216 for xorg and 20090215 for libmap may still 316 apply. 317 31820090217: 319 The rc.conf(5) option if_up_delay has been renamed to 320 defaultroute_delay to better reflect its purpose. If you have 321 customized this setting in /etc/rc.conf you need to update it to 322 use the new name. 323 32420090216: 325 xorg 7.4 wants to configure its input devices via hald which does not 326 yet work with USB2. If the keyboard/mouse does not work in xorg then 327 add 328 Option "AllowEmptyInput" "off" 329 to your ServerLayout section. This will cause X to use the configured 330 kbd and mouse sections from your xorg.conf. 331 33220090215: 333 The GENERIC kernels for all architectures now default to the new USB2 334 stack. No kernel config options or code have been removed so if a 335 problem arises please report it and optionally revert to the old USB 336 stack. If you are loading USB kernel modules or have a custom kernel 337 that includes GENERIC then ensure that usb names are also changed over, 338 eg uftdi -> usb2_serial_ftdi. 339 340 Older programs linked against the ports libusb 0.1 need to be 341 redirected to the new stack's libusb20. /etc/libmap.conf can 342 be used for this: 343 # Map old usb library to new one for usb2 stack 344 libusb-0.1.so.8 libusb20.so.1 345 34620090203: 347 The ichsmb(4) driver has been changed to require SMBus slave 348 addresses be left-justified (xxxxxxx0b) rather than right-justified. 349 All of the other SMBus controller drivers require left-justified 350 slave addresses, so this change makes all the drivers provide the 351 same interface. 352 35320090201: 354 INET6 statistics (struct ip6stat) was updated. 355 netstat(1) needs to be recompiled. 356 35720090119: 358 NTFS has been removed from GENERIC kernel on amd64 to match 359 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 360 will load ntfs.ko module automatically when NTFS support is 361 actually needed, unless ntfs.ko is not installed or security 362 level prohibits loading kernel modules. If either is the case, 363 "options NTFS" has to be added into kernel config. 364 36520090115: 366 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 367 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 368 800061. User space tools that rely on the size of struct tcpcb in 369 tcp_var.h (e.g. sockstat) need to be recompiled. 370 37120081225: 372 ng_tty(4) module updated to match the new TTY subsystem. 373 Due to API change, user-level applications must be updated. 374 New API support added to mpd5 CVS and expected to be present 375 in next mpd5.3 release. 376 37720081219: 378 With __FreeBSD_version 800060 the makefs tool is part of 379 the base system (it was a port). 380 38120081216: 382 The afdata and ifnet locks have been changed from mutexes to 383 rwlocks, network modules will need to be re-compiled. 384 38520081214: 386 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 387 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 388 The new code reduced struct rtentry{} by 16 bytes on 32-bit 389 architecture and 40 bytes on 64-bit architecture. The userland 390 applications "arp" and "ndp" have been updated accordingly. 391 The output from "netstat -r" shows only routing entries and 392 none of the L2 information. 393 39420081130: 395 __FreeBSD_version 800057 marks the switchover from the 396 binary ath hal to source code. Users must add the line: 397 398 options AH_SUPPORT_AR5416 399 400 to their kernel config files when specifying: 401 402 device ath_hal 403 404 The ath_hal module no longer exists; the code is now compiled 405 together with the driver in the ath module. It is now 406 possible to tailor chip support (i.e. reduce the set of chips 407 and thereby the code size); consult ath_hal(4) for details. 408 40920081121: 410 __FreeBSD_version 800054 adds memory barriers to 411 <machine/atomic.h>, new interfaces to ifnet to facilitate 412 multiple hardware transmit queues for cards that support 413 them, and a lock-less ring-buffer implementation to 414 enable drivers to more efficiently manage queueing of 415 packets. 416 41720081117: 418 A new version of ZFS (version 13) has been merged to -HEAD. 419 This version has zpool attribute "listsnapshots" off by 420 default, which means "zfs list" does not show snapshots, 421 and is the same as Solaris behavior. 422 42320081028: 424 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 425 42620081009: 427 The uhci, ohci, ehci and slhci USB Host controller drivers have 428 been put into separate modules. If you load the usb module 429 separately through loader.conf you will need to load the 430 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 431 controller add the following to loader.conf: 432 433 uhci_load="YES" 434 ehci_load="YES" 435 43620081009: 437 The ABI used by the PMC toolset has changed. Please keep 438 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 439 sync. 440 44120080820: 442 The TTY subsystem of the kernel has been replaced by a new 443 implementation, which provides better scalability and an 444 improved driver model. Most common drivers have been migrated to 445 the new TTY subsystem, while others have not. The following 446 drivers have not yet been ported to the new TTY layer: 447 448 PCI/ISA: 449 cy, digi, rc, rp, sio 450 451 USB: 452 ubser, ucycom 453 454 Line disciplines: 455 ng_h4, ng_tty, ppp, sl, snp 456 457 Adding these drivers to your kernel configuration file shall 458 cause compilation to fail. 459 46020080818: 461 ntpd has been upgraded to 4.2.4p5. 462 46320080801: 464 OpenSSH has been upgraded to 5.1p1. 465 466 For many years, FreeBSD's version of OpenSSH preferred DSA 467 over RSA for host and user authentication keys. With this 468 upgrade, we've switched to the vendor's default of RSA over 469 DSA. This may cause upgraded clients to warn about unknown 470 host keys even for previously known hosts. Users should 471 follow the usual procedure for verifying host keys before 472 accepting the RSA key. 473 474 This can be circumvented by setting the "HostKeyAlgorithms" 475 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 476 command line. 477 478 Please note that the sequence of keys offered for 479 authentication has been changed as well. You may want to 480 specify IdentityFile in a different order to revert this 481 behavior. 482 48320080713: 484 The sio(4) driver has been removed from the i386 and amd64 485 kernel configuration files. This means uart(4) is now the 486 default serial port driver on those platforms as well. 487 488 To prevent collisions with the sio(4) driver, the uart(4) driver 489 uses different names for its device nodes. This means the 490 onboard serial port will now most likely be called "ttyu0" 491 instead of "ttyd0". You may need to reconfigure applications to 492 use the new device names. 493 494 When using the serial port as a boot console, be sure to update 495 /boot/device.hints and /etc/ttys before booting the new kernel. 496 If you forget to do so, you can still manually specify the hints 497 at the loader prompt: 498 499 set hint.uart.0.at="isa" 500 set hint.uart.0.port="0x3F8" 501 set hint.uart.0.flags="0x10" 502 set hint.uart.0.irq="4" 503 boot -s 504 50520080609: 506 The gpt(8) utility has been removed. Use gpart(8) to partition 507 disks instead. 508 50920080603: 510 The version that Linuxulator emulates was changed from 2.4.2 511 to 2.6.16. If you experience any problems with Linux binaries 512 please try to set sysctl compat.linux.osrelease to 2.4.2 and 513 if it fixes the problem contact emulation mailing list. 514 51520080525: 516 ISDN4BSD (I4B) was removed from the src tree. You may need to 517 update a your kernel configuration and remove relevant entries. 518 51920080509: 520 I have checked in code to support multiple routing tables. 521 See the man pages setfib(1) and setfib(2). 522 This is a hopefully backwards compatible version, 523 but to make use of it you need to compile your kernel 524 with options ROUTETABLES=2 (or more up to 16). 525 52620080420: 527 The 802.11 wireless support was redone to enable multi-bss 528 operation on devices that are capable. The underlying device 529 is no longer used directly but instead wlanX devices are 530 cloned with ifconfig. This requires changes to rc.conf files. 531 For example, change: 532 ifconfig_ath0="WPA DHCP" 533 to 534 wlans_ath0=wlan0 535 ifconfig_wlan0="WPA DHCP" 536 see rc.conf(5) for more details. In addition, mergemaster of 537 /etc/rc.d is highly recommended. Simultaneous update of userland 538 and kernel wouldn't hurt either. 539 540 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 541 modules were merged into the base wlan module. All references 542 to these modules (e.g. in kernel config files) must be removed. 543 54420080408: 545 psm(4) has gained write(2) support in native operation level. 546 Arbitrary commands can be written to /dev/psm%d and status can 547 be read back from it. Therefore, an application is responsible 548 for status validation and error recovery. It is a no-op in 549 other operation levels. 550 55120080312: 552 Support for KSE threading has been removed from the kernel. To 553 run legacy applications linked against KSE libmap.conf may 554 be used. The following libmap.conf may be used to ensure 555 compatibility with any prior release: 556 557 libpthread.so.1 libthr.so.1 558 libpthread.so.2 libthr.so.2 559 libkse.so.3 libthr.so.3 560 56120080301: 562 The layout of struct vmspace has changed. This affects libkvm 563 and any executables that link against libkvm and use the 564 kvm_getprocs() function. In particular, but not exclusively, 565 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 566 The effects are minimal, but it's advisable to upgrade world 567 nonetheless. 568 56920080229: 570 The latest em driver no longer has support in it for the 571 82575 adapter, this is now moved to the igb driver. The 572 split was done to make new features that are incompatible 573 with older hardware easier to do. 574 57520080220: 576 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 577 likewise the kernel option is now GEOM_LINUX_LVM. 578 57920080211: 580 The default NFS mount mode has changed from UDP to TCP for 581 increased reliability. If you rely on (insecurely) NFS 582 mounting across a firewall you may need to update your 583 firewall rules. 584 58520080208: 586 Belatedly note the addition of m_collapse for compacting 587 mbuf chains. 588 58920080126: 590 The fts(3) structures have been changed to use adequate 591 integer types for their members and so to be able to cope 592 with huge file trees. The old fts(3) ABI is preserved 593 through symbol versioning in libc, so third-party binaries 594 using fts(3) should still work, although they will not take 595 advantage of the extended types. At the same time, some 596 third-party software might fail to build after this change 597 due to unportable assumptions made in its source code about 598 fts(3) structure members. Such software should be fixed 599 by its vendor or, in the worst case, in the ports tree. 600 FreeBSD_version 800015 marks this change for the unlikely 601 case that a portable fix is impossible. 602 60320080123: 604 To upgrade to -current after this date, you must be running 605 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 606 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 607 60820071128: 609 The ADAPTIVE_GIANT kernel option has been retired because its 610 functionality is the default now. 611 61220071118: 613 The AT keyboard emulation of sunkbd(4) has been turned on 614 by default. In order to make the special symbols of the Sun 615 keyboards driven by sunkbd(4) work under X these now have 616 to be configured the same way as Sun USB keyboards driven 617 by ukbd(4) (which also does AT keyboard emulation), f.e.: 618 619 Option "XkbLayout" "us" 620 Option "XkbRules" "xorg" 621 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 622 62320071024: 624 It has been decided that it is desirable to provide ABI 625 backwards compatibility to the FreeBSD 4/5/6 versions of the 626 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 627 broken with the introduction of PCI domain support (see the 628 20070930 entry). Unfortunately, this required the ABI of 629 PCIOCGETCONF to be broken again in order to be able to 630 provide backwards compatibility to the old version of that 631 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 632 again. As for prominent ports this affects neither pciutils 633 nor xorg-server this time, the hal port needs to be rebuilt 634 however. 635 63620071020: 637 The misnamed kthread_create() and friends have been renamed 638 to kproc_create() etc. Many of the callers already 639 used kproc_start().. 640 I will return kthread_create() and friends in a while 641 with implementations that actually create threads, not procs. 642 Renaming corresponds with version 800002. 643 64420071010: 645 RELENG_7 branched. 646 64720071009: 648 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 649 WITHOUT_LIBTHR are set. 650 65120070930: 652 The PCI code has been made aware of PCI domains. This means that 653 the location strings as used by pciconf(8) etc are now in the 654 following format: pci<domain>:<bus>:<device>[:<function>]. It 655 also means that consumers of <sys/pciio.h> potentially need to 656 be recompiled; this includes the hal and xorg-server ports. 657 65820070928: 659 The caching daemon (cached) was renamed to nscd. nscd.conf 660 configuration file should be used instead of cached.conf and 661 nscd_enable, nscd_pidfile and nscd_flags options should be used 662 instead of cached_enable, cached_pidfile and cached_flags in 663 rc.conf. 664 66520070921: 666 The getfacl(1) utility now prints owning user and group name 667 instead of owning uid and gid in the three line comment header. 668 This is the same behavior as getfacl(1) on Solaris and Linux. 669 67020070704: 671 The new IPsec code is now compiled in using the IPSEC option. The 672 IPSEC option now requires "device crypto" be defined in your kernel 673 configuration. The FAST_IPSEC kernel option is now deprecated. 674 67520070702: 676 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 677 note the changed syntax - keep state is now on by default. Also 678 note the fact that ftp-proxy(8) has been changed from bottom up and 679 has been moved from libexec to usr/sbin. Changes in the ALTQ 680 handling also affect users of IPFW's ALTQ capabilities. 681 68220070701: 683 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 684 only IPsec supported by FreeBSD. The new IPsec stack 685 supports both IPv4 and IPv6. The kernel option will change 686 after the code changes have settled in. For now the kernel 687 option IPSEC is deprecated and FAST_IPSEC is the only option, that 688 will change after some settling time. 689 69020070701: 691 The wicontrol(8) utility has been removed from the base system. wi(4) 692 cards should be configured using ifconfig(8), see the man page for more 693 information. 694 69520070612: 696 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 697 instead of the nve(4) driver. Please update your configuration 698 accordingly. 699 70020070612: 701 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 702 database if it is missing or older than the aliases file. If 703 desired, set the new rc.conf option sendmail_rebuild_aliases 704 to "YES" to restore that functionality. 705 70620070612: 707 The IPv4 multicast socket code has been considerably modified, and 708 moved to the file sys/netinet/in_mcast.c. Initial support for the 709 RFC 3678 Source-Specific Multicast Socket API has been added to 710 the IPv4 network stack. 711 712 Strict multicast and broadcast reception is now the default for 713 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 714 has now been removed. 715 716 The RFC 1724 hack for interface selection has been removed; the use 717 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 718 been added to replace it. Consumers such as routed will soon be 719 updated to reflect this. 720 721 These changes affect users who are running routed(8) or rdisc(8) 722 from the FreeBSD base system on point-to-point or unnumbered 723 interfaces. 724 72520070610: 726 The net80211 layer has changed significantly and all wireless 727 drivers that depend on it need to be recompiled. Further these 728 changes require that any program that interacts with the wireless 729 support in the kernel be recompiled; this includes: ifconfig, 730 wpa_supplicant, hostapd, and wlanstats. Users must also, for 731 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 732 if they use modules for wireless support. These modules implement 733 scanning support for station and ap modes, respectively. Failure 734 to load the appropriate module before marking a wireless interface 735 up will result in a message to the console and the device not 736 operating properly. 737 73820070610: 739 The pam_nologin(8) module ceases to provide an authentication 740 function and starts providing an account management function. 741 Consequent changes to /etc/pam.d should be brought in using 742 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 743 need manual editing as follows. Locate this line (or similar): 744 745 auth required pam_nologin.so no_warn 746 747 and change it according to this example: 748 749 account required pam_nologin.so no_warn 750 751 That is, the first word needs to be changed from "auth" to 752 "account". The new line can be moved to the account section 753 within the file for clarity. Not updating pam.conf(5) files 754 will result in nologin(5) ignored by the respective services. 755 75620070529: 757 The ether_ioctl() function has been synchronized with ioctl(2) 758 and ifnet.if_ioctl. Due to that, the size of one of its arguments 759 has changed on 64-bit architectures. All kernel modules using 760 ether_ioctl() need to be rebuilt on such architectures. 761 76220070516: 763 Improved INCLUDE_CONFIG_FILE support has been introduced to the 764 config(8) utility. In order to take advantage of this new 765 functionality, you are expected to recompile and install 766 src/usr.sbin/config. If you don't rebuild config(8), and your 767 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 768 build will be broken because of a missing "kernconfstring" 769 symbol. 770 77120070513: 772 Symbol versioning is enabled by default. To disable it, use 773 option WITHOUT_SYMVER. It is not advisable to attempt to 774 disable symbol versioning once it is enabled; your installworld 775 will break because a symbol version-less libc will get installed 776 before the install tools. As a result, the old install tools, 777 which previously had symbol dependencies to FBSD_1.0, will fail 778 because the freshly installed libc will not have them. 779 780 The default threading library (providing "libpthread") has been 781 changed to libthr. If you wish to have libkse as your default, 782 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 783 78420070423: 785 The ABI breakage in sendmail(8)'s libmilter has been repaired 786 so it is no longer necessary to recompile mail filters (aka, 787 milters). If you recompiled mail filters after the 20070408 788 note, it is not necessary to recompile them again. 789 79020070417: 791 The new trunk(4) driver has been renamed to lagg(4) as it better 792 reflects its purpose. ifconfig will need to be recompiled. 793 79420070408: 795 sendmail(8) has been updated to version 8.14.1. Mail filters 796 (aka, milters) compiled against the libmilter included in the 797 base operating system should be recompiled. 798 79920070302: 800 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 801 In order to use them one must agree to the respective LICENSE in 802 share/doc/legal and define legal.intel_<name>.license_ack=1 via 803 loader.conf(5) or kenv(1). Make sure to deinstall the now 804 deprecated modules from the respective firmware ports. 805 80620070228: 807 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 808 were removed from FreeBSD's libc. These originally came from INRIA 809 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 810 deprecated in previous releases. 811 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 812 replace it as a more portable (and re-entrant) API. 813 81420070224: 815 To support interrupt filtering a modification to the newbus API 816 has occurred, ABI was broken and __FreeBSD_version was bumped 817 to 700031. Please make sure that your kernel and modules are in 818 sync. For more info: 819 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 820 82120070224: 822 The IPv6 multicast forwarding code may now be loaded into GENERIC 823 kernels by loading the ip_mroute.ko module. This is built into the 824 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 825 set; see src.conf(5) for more information. 826 82720070214: 828 The output of netstat -r has changed. Without -n, we now only 829 print a "network name" without the prefix length if the network 830 address and mask exactly match a Class A/B/C network, and an entry 831 exists in the nsswitch "networks" map. 832 With -n, we print the full unabbreviated CIDR network prefix in 833 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 834 This change is in preparation for changes such as equal-cost 835 multipath, and to more generally assist operational deployment 836 of FreeBSD as a modern IPv4 router. 837 83820070210: 839 PIM has been turned on by default in the IPv4 multicast 840 routing code. The kernel option 'PIM' has now been removed. 841 PIM is now built by default if option 'MROUTING' is specified. 842 It may now be loaded into GENERIC kernels by loading the 843 ip_mroute.ko module. 844 84520070207: 846 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 847 has been removed. Its functionality may be achieved by explicitly 848 configuring gif(4) interfaces and using the 'phyint' keyword in 849 mrouted.conf. 850 XORP does not support source-routed IPv4 multicast tunnels nor the 851 integrated IPIP tunneling, therefore it is not affected by this 852 change. The __FreeBSD_version macro has been bumped to 700030. 853 85420061221: 855 Support for PCI Message Signalled Interrupts has been 856 re-enabled in the bge driver, only for those chips which are 857 believed to support it properly. If there are any problems, 858 MSI can be disabled completely by setting the 859 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 860 in the loader. 861 86220061214: 863 Support for PCI Message Signalled Interrupts has been 864 disabled again in the bge driver. Many revisions of the 865 hardware fail to support it properly. Support can be 866 re-enabled by removing the #define of BGE_DISABLE_MSI in 867 "src/sys/dev/bge/if_bge.c". 868 86920061214: 870 Support for PCI Message Signalled Interrupts has been added 871 to the bge driver. If there are any problems, MSI can be 872 disabled completely by setting the 'hw.pci.enable_msi' and 873 'hw.pci.enable_msix' tunables to 0 in the loader. 874 87520061205: 876 The removal of several facets of the experimental Threading 877 system from the kernel means that the proc and thread structures 878 have changed quite a bit. I suggest all kernel modules that might 879 reference these structures be recompiled.. Especially the 880 linux module. 881 88220061126: 883 Sound infrastructure has been updated with various fixes and 884 improvements. Most of the changes are pretty much transparent, 885 with exceptions of followings: 886 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 887 moved to their own dev sysctl nodes, for example: 888 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 889 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 890 own chardev in the form of "dsp%d.<function>%d", where <function> 891 is p = playback, r = record and v = virtual, respectively. Users 892 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 893 This does not affect those who are using "/dev/dsp". 894 89520061122: 896 geom(4)'s gmirror(8) class metadata structure has been 897 rev'd from v3 to v4. If you update across this point and 898 your metadata is converted for you, you will not be easily 899 able to downgrade since the /boot/kernel.old/geom_mirror.ko 900 kernel module will be unable to read the v4 metadata. You 901 can resolve this by doing from the loader(8) prompt: 902 903 set vfs.root.mountfrom="ufs:/dev/XXX" 904 905 where XXX is the root slice of one of the disks that composed 906 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 907 the array the same way you built it originally. 908 90920061122: 910 The following binaries have been disconnected from the build: 911 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 912 and mount_std. The functionality of these programs has been 913 moved into the mount program. For example, to mount a devfs 914 filesystem, instead of using mount_devfs, use: "mount -t devfs". 915 This does not affect entries in /etc/fstab, since entries in 916 /etc/fstab are always processed with "mount -t fstype". 917 91820061113: 919 Support for PCI Message Signalled Interrupts on i386 and amd64 920 has been added to the kernel and various drivers will soon be 921 updated to use MSI when it is available. If there are any problems, 922 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 923 and 'hw.pci.enable_msix' tunables to 0 in the loader. 924 92520061110: 926 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 927 The lockmgr object layout has been changed as a result of having 928 a lock_object embedded in it. As a consequence all file system 929 kernel modules must be re-compiled. The mutex profiling man page 930 has not yet been updated to reflect this change. 931 93220061026: 933 KSE in the kernel has now been made optional and turned on by 934 default. Use 'nooption KSE' in your kernel config to turn it 935 off. All kernel modules *must* be recompiled after this change. 936 There-after, modules from a KSE kernel should be compatible with 937 modules from a NOKSE kernel due to the temporary padding fields 938 added to 'struct proc'. 939 94020060929: 941 mrouted and its utilities have been removed from the base system. 942 94320060927: 944 Some ioctl(2) command codes have changed. Full backward ABI 945 compatibility is provided if the "options COMPAT_FREEBSD6" is 946 present in the kernel configuration file. Make sure to add 947 this option to your kernel config file, or recompile X.Org 948 and the rest of ports; otherwise they may refuse to work. 949 95020060924: 951 tcpslice has been removed from the base system. 952 95320060913: 954 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 955 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 956 systat needs to be rebuilt. 957 95820060903: 959 libpcap updated to v0.9.4 and tcpdump to v3.9.4 960 96120060816: 962 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 963 for IPFIREWALL_FORWARD is now as it was before when it was first 964 committed and for years after. The behaviour is now ON. 965 96620060725: 967 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 968 Now it can decrypt files created from different architectures. 969 Unfortunately, it is no longer able to decrypt a cipher text 970 generated with an older version on 64 bit architectures. 971 If you have such a file, you need old utility to decrypt it. 972 97320060709: 974 The interface version of the i4b kernel part has changed. So 975 after updating the kernel sources and compiling a new kernel, 976 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 977 be rebuilt, and vice versa. 978 97920060627: 980 The XBOX kernel now defaults to the nfe(4) driver instead of 981 the nve(4) driver. Please update your configuration 982 accordingly. 983 98420060514: 985 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 986 PCnet family of NICs has been removed. The new le(4) driver serves 987 as an equivalent but cross-platform replacement with the pcn(4) 988 driver still providing performance-optimized support for the subset 989 of AMD Am79C971 PCnet-FAST and greater chips as before. 990 99120060511: 992 The machdep.* sysctls and the adjkerntz utility have been 993 modified a bit. The new adjkerntz utility uses the new 994 sysctl names and sysctlbyname() calls, so it may be impossible 995 to run an old /sbin/adjkerntz utility in single-user mode 996 with a new kernel. Replace the `adjkerntz -i' step before 997 `make installworld' with: 998 999 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1000 1001 and proceed as usual with the rest of the installworld-stage 1002 steps. Otherwise, you risk installing binaries with their 1003 timestamp set several hours in the future, especially if 1004 you are running with local time set to GMT+X hours. 1005 100620060412: 1007 The ip6fw utility has been removed. The behavior provided by 1008 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1009 have been updated to deal with it. There are some rules that 1010 might not migrate cleanly. Use rc.firewall6 as a template to 1011 rewrite rules. 1012 101320060428: 1014 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1015 attachments have been removed. Make sure to configure scc(4) 1016 on sparc64. Note also that by default puc(4) will use uart(4) 1017 and not sio(4) for serial ports because interrupt handling has 1018 been optimized for multi-port serial cards and only uart(4) 1019 implements the interface to support it. 1020 102120060330: 1022 The scc(4) driver replaces puc(4) for Serial Communications 1023 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1024 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1025 configuration to make sure that the serial ports remain 1026 functional. 1027 102820060317: 1029 Most world/kernel related NO_* build options changed names. 1030 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1031 after FreeBSD ports) and should be set in /etc/src.conf 1032 (the src.conf(5) manpage is provided). Full backwards 1033 compatibility is maintained for the time being though it's 1034 highly recommended to start moving old options out of the 1035 system-wide /etc/make.conf file into the new /etc/src.conf 1036 while also properly renaming them. More conversions will 1037 likely follow. Posting to current@: 1038 1039 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1040 104120060305: 1042 The NETSMBCRYPTO kernel option has been retired because its 1043 functionality is always included in NETSMB and smbfs.ko now. 1044 104520060303: 1046 The TDFX_LINUX kernel option was retired and replaced by the 1047 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1048 kernel module. Loading it alone should suffice to get 3dfx support 1049 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1050 its dependencies. 1051 105220060204: 1053 The 'audit' group was added to support the new auditing functionality 1054 in the base system. Be sure to follow the directions for updating, 1055 including the requirement to run mergemaster -p. 1056 105720060201: 1058 The kernel ABI to file system modules was changed on i386. 1059 Please make sure that your kernel and modules are in sync. 1060 106120060118: 1062 This actually occured some time ago, but installing the kernel 1063 now also installs a bunch of symbol files for the kernel modules. 1064 This increases the size of /boot/kernel to about 67Mbytes. You 1065 will need twice this if you will eventually back this up to kernel.old 1066 on your next install. 1067 If you have a shortage of room in your root partition, you should add 1068 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1069 to your /etc/make.conf. 1070 107120060113: 1072 libc's malloc implementation has been replaced. This change has the 1073 potential to uncover application bugs that previously went unnoticed. 1074 See the malloc(3) manual page for more details. 1075 107620060112: 1077 The generic netgraph(4) cookie has been changed. If you upgrade 1078 kernel passing this point, you also need to upgrade userland 1079 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1080 108120060106: 1082 si(4)'s device files now contain the unit number. 1083 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1084 108520060106: 1086 The kernel ABI was mostly destroyed due to a change in the size 1087 of struct lock_object which is nested in other structures such 1088 as mutexes which are nested in all sorts of other structures. 1089 Make sure your kernel and modules are in sync. 1090 109120051231: 1092 The page coloring algorithm in the VM subsystem was converted 1093 from tuning with kernel options to autotuning. Please remove 1094 any PQ_* option except PQ_NOOPT from your kernel config. 1095 109620051211: 1097 The net80211-related tools in the tools/tools/ath directory 1098 have been moved to tools/tools/net80211 and renamed with a 1099 "wlan" prefix. Scripts that use them should be adjusted 1100 accordingly. 1101 110220051202: 1103 Scripts in the local_startup directories (as defined in 1104 /etc/defaults/rc.conf) that have the new rc.d semantics will 1105 now be run as part of the base system rcorder. If there are 1106 errors or problems with one of these local scripts, it could 1107 cause boot problems. If you encounter such problems, boot in 1108 single user mode, remove that script from the */rc.d directory. 1109 Please report the problem to the port's maintainer, and the 1110 freebsd-ports@freebsd.org mailing list. 1111 111220051129: 1113 The nodev mount option was deprecated in RELENG_6 (where it 1114 was a no-op), and is now unsupported. If you have nodev or dev listed 1115 in /etc/fstab, remove it, otherwise it will result in a mount error. 1116 111720051129: 1118 ABI between ipfw(4) and ipfw(8) has been changed. You need 1119 to rebuild ipfw(8) when rebuilding kernel. 1120 112120051108: 1122 rp(4)'s device files now contain the unit number. 1123 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1124 112520051029: 1126 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1127 Its /etc/rc.conf.d configuration file has been `ppp' from 1128 the beginning, and hence there is no need to touch it. 1129 113020051014: 1131 Now most modules get their build-time options from the kernel 1132 configuration file. A few modules still have fixed options 1133 due to their non-conformant implementation, but they will be 1134 corrected eventually. You may need to review the options of 1135 the modules in use, explicitly specify the non-default options 1136 in the kernel configuration file, and rebuild the kernel and 1137 modules afterwards. 1138 113920051001: 1140 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1141 to turn polling(4) on your interfaces. 1142 114320050927: 1144 The old bridge(4) implementation was retired. The new 1145 if_bridge(4) serves as a full functional replacement. 1146 114720050722: 1148 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1149 to conform to POSIX-2001. This change broke an ABI 1150 compatibility on 64 bit architecture. You have to recompile 1151 userland programs that use getaddrinfo(3) on 64 bit 1152 architecture. 1153 115420050711: 1155 RELENG_6 branched here. 1156 115720050629: 1158 The pccard_ifconfig rc.conf variable has been removed and a new 1159 variable, ifconfig_DEFAULT has been introduced. Unlike 1160 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1161 do not have ifconfig_ifn entries rather than just those in 1162 removable_interfaces. 1163 116420050616: 1165 Some previous versions of PAM have permitted the use of 1166 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1167 to third party PAM modules in /usr/local/lib. A change has been 1168 made to require the use of absolute paths in order to avoid 1169 ambiguity and dependence on library path configuration, which may 1170 affect existing configurations. 1171 117220050610: 1173 Major changes to network interface API. All drivers must be 1174 recompiled. Drivers not in the base system will need to be 1175 updated to the new APIs. 1176 117720050609: 1178 Changes were made to kinfo_proc in sys/user.h. Please recompile 1179 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1180 will not behave correctly. 1181 1182 The API and ABI for hwpmc(4) have changed with the addition 1183 of sampling support. Please recompile lib/libpmc(3) and 1184 usr.sbin/{pmcstat,pmccontrol}. 1185 118620050606: 1187 The OpenBSD dhclient was imported in place of the ISC dhclient 1188 and the network interface configuration scripts were updated 1189 accordingly. If you use DHCP to configure your interfaces, you 1190 must now run devd. Also, DNS updating was lost so you will need 1191 to find a workaround if you use this feature. 1192 1193 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1194 sure to run mergemaster -p (like you are supposed to do every time 1195 anyway). 1196 119720050605: 1198 if_bridge was added to the tree. This has changed struct ifnet. 1199 Please recompile userland and all network related modules. 1200 120120050603: 1202 The n_net of a struct netent was changed to an uint32_t, and 1203 1st argument of getnetbyaddr() was changed to an uint32_t, to 1204 conform to POSIX-2001. These changes broke an ABI 1205 compatibility on 64 bit architecture. With these changes, 1206 shlib major of libpcap was bumped. You have to recompile 1207 userland programs that use getnetbyaddr(3), getnetbyname(3), 1208 getnetent(3) and/or libpcap on 64 bit architecture. 1209 121020050528: 1211 Kernel parsing of extra options on '#!' first lines of shell 1212 scripts has changed. Lines with multiple options likely will 1213 fail after this date. For full details, please see 1214 http://people.freebsd.org/~gad/Updating-20050528.txt 1215 121620050503: 1217 The packet filter (pf) code has been updated to OpenBSD 3.7 1218 Please note the changed anchor syntax and the fact that 1219 authpf(8) now needs a mounted fdescfs(5) to function. 1220 122120050415: 1222 The NO_MIXED_MODE kernel option has been removed from the i386 1223 amd64 platforms as its use has been superceded by the new local 1224 APIC timer code. Any kernel config files containing this option 1225 should be updated. 1226 122720050227: 1228 The on-disk format of LC_CTYPE files was changed to be machine 1229 independent. Please make sure NOT to use NO_CLEAN buildworld 1230 when crossing this point. Crossing this point also requires 1231 recompile or reinstall of all locale depended packages. 1232 123320050225: 1234 The ifi_epoch member of struct if_data has been changed to 1235 contain the uptime at which the interface was created or the 1236 statistics zeroed rather then the wall clock time because 1237 wallclock time may go backwards. This should have no impact 1238 unless an snmp implementation is using this value (I know of 1239 none at this point.) 1240 124120050224: 1242 The acpi_perf and acpi_throttle drivers are now part of the 1243 acpi(4) main module. They are no longer built separately. 1244 124520050223: 1246 The layout of struct image_params has changed. You have to 1247 recompile all compatibility modules (linux, svr4, etc) for use 1248 with the new kernel. 1249 125020050223: 1251 The p4tcc driver has been merged into cpufreq(4). This makes 1252 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1253 compile in "device cpufreq" to restore this functionality. 1254 125520050220: 1256 The responsibility of recomputing the file system summary of 1257 a SoftUpdates-enabled dirty volume has been transferred to the 1258 background fsck. A rebuild of fsck(8) utility is recommended 1259 if you have updated the kernel. 1260 1261 To get the old behavior (recompute file system summary at mount 1262 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1263 mounting the new volume. 1264 126520050206: 1266 The cpufreq import is complete. As part of this, the sysctls for 1267 acpi(4) throttling have been removed. The power_profile script 1268 has been updated, so you can use performance/economy_cpu_freq in 1269 rc.conf(5) to set AC on/offline cpu frequencies. 1270 127120050206: 1272 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1273 requires recompiling libnetgraph and userland netgraph utilities. 1274 127520050114: 1276 Support for abbreviated forms of a number of ipfw options is 1277 now deprecated. Warnings are printed to stderr indicating the 1278 correct full form when a match occurs. Some abbreviations may 1279 be supported at a later date based on user feedback. To be 1280 considered for support, abbreviations must be in use prior to 1281 this commit and unlikely to be confused with current key words. 1282 128320041221: 1284 By a popular demand, a lot of NOFOO options were renamed 1285 to NO_FOO (see bsd.compat.mk for a full list). The old 1286 spellings are still supported, but will cause annoying 1287 warnings on stderr. Make sure you upgrade properly (see 1288 the COMMON ITEMS: section later in this file). 1289 129020041219: 1291 Auto-loading of ancillary wlan modules such as wlan_wep has 1292 been temporarily disabled; you need to statically configure 1293 the modules you need into your kernel or explicitly load them 1294 prior to use. Specifically, if you intend to use WEP encryption 1295 with an 802.11 device load/configure wlan_wep; if you want to 1296 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1297 and wlan_xauth as required. 1298 129920041213: 1300 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1301 (``enable lqr''), older versions would revert to LCP ECHO mode on 1302 negotiation failure. Now, ``enable echo'' is required for this 1303 behaviour. The ppp version number has been bumped to 3.4.2 to 1304 reflect the change. 1305 130620041201: 1307 The wlan support has been updated to split the crypto support 1308 into separate modules. For static WEP you must configure the 1309 wlan_wep module in your system or build and install the module 1310 in place where it can be loaded (the kernel will auto-load 1311 the module when a wep key is configured). 1312 131320041201: 1314 The ath driver has been updated to split the tx rate control 1315 algorithm into a separate module. You need to include either 1316 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1317 131820041116: 1319 Support for systems with an 80386 CPU has been removed. Please 1320 use FreeBSD 5.x or earlier on systems with an 80386. 1321 132220041110: 1323 We have had a hack which would mount the root filesystem 1324 R/W if the device were named 'md*'. As part of the vnode 1325 work I'm doing I have had to remove this hack. People 1326 building systems which use preloaded MD root filesystems 1327 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1328 their /etc/rc scripts. 1329 133020041104: 1331 FreeBSD 5.3 shipped here. 1332 133320041102: 1334 The size of struct tcpcb has changed again due to the removal 1335 of RFC1644 T/TCP. You have to recompile userland programs that 1336 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1337 133820041022: 1339 The size of struct tcpcb has changed. You have to recompile 1340 userland programs that read kmem for tcp sockets directly 1341 (netstat, sockstat, etc.) 1342 134320041016: 1344 RELENG_5 branched here. For older entries, please see updating 1345 in the RELENG_5 branch. 1346 1347COMMON ITEMS: 1348 1349 General Notes 1350 ------------- 1351 Avoid using make -j when upgrading. From time to time in the 1352 past there have been problems using -j with buildworld and/or 1353 installworld. This is especially true when upgrading between 1354 "distant" versions (eg one that cross a major release boundary 1355 or several minor releases, or when several months have passed 1356 on the -current branch). 1357 1358 Sometimes, obscure build problems are the result of environment 1359 poisoning. This can happen because the make utility reads its 1360 environment when searching for values for global variables. 1361 To run your build attempts in an "environmental clean room", 1362 prefix all make commands with 'env -i '. See the env(1) manual 1363 page for more details. 1364 1365 When upgrading from one major version to another it is generally 1366 best to upgrade to the latest code in the currently installed branch 1367 first, then do an upgrade to the new branch. This is the best-tested 1368 upgrade path, and has the highest probability of being successful. 1369 Please try this approach before reporting problems with a major 1370 version upgrade. 1371 1372 To build a kernel 1373 ----------------- 1374 If you are updating from a prior version of FreeBSD (even one just 1375 a few days old), you should follow this procedure. It is the most 1376 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1377 1378 make kernel-toolchain 1379 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1380 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1381 1382 To test a kernel once 1383 --------------------- 1384 If you just want to boot a kernel once (because you are not sure 1385 if it works, or if you want to boot a known bad kernel to provide 1386 debugging information) run 1387 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1388 nextboot -k testkernel 1389 1390 To just build a kernel when you know that it won't mess you up 1391 -------------------------------------------------------------- 1392 This assumes you are already running a 5.X system. Replace 1393 ${arch} with the architecture of your machine (e.g. "i386", 1394 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1395 1396 cd src/sys/${arch}/conf 1397 config KERNEL_NAME_HERE 1398 cd ../compile/KERNEL_NAME_HERE 1399 make depend 1400 make 1401 make install 1402 1403 If this fails, go to the "To build a kernel" section. 1404 1405 To rebuild everything and install it on the current system. 1406 ----------------------------------------------------------- 1407 # Note: sometimes if you are running current you gotta do more than 1408 # is listed here if you are upgrading from a really old current. 1409 1410 <make sure you have good level 0 dumps> 1411 make buildworld 1412 make kernel KERNCONF=YOUR_KERNEL_HERE 1413 [1] 1414 <reboot in single user> [3] 1415 mergemaster -p [5] 1416 make installworld 1417 make delete-old 1418 mergemaster [4] 1419 <reboot> 1420 1421 1422 To cross-install current onto a separate partition 1423 -------------------------------------------------- 1424 # In this approach we use a separate partition to hold 1425 # current's root, 'usr', and 'var' directories. A partition 1426 # holding "/", "/usr" and "/var" should be about 2GB in 1427 # size. 1428 1429 <make sure you have good level 0 dumps> 1430 <boot into -stable> 1431 make buildworld 1432 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1433 <maybe newfs current's root partition> 1434 <mount current's root partition on directory ${CURRENT_ROOT}> 1435 make installworld DESTDIR=${CURRENT_ROOT} 1436 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1437 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1438 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1439 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1440 <reboot into current> 1441 <do a "native" rebuild/install as described in the previous section> 1442 <maybe install compatibility libraries from ports/misc/compat*> 1443 <reboot> 1444 1445 1446 To upgrade in-place from 5.x-stable to current 1447 ---------------------------------------------- 1448 <make sure you have good level 0 dumps> 1449 make buildworld [9] 1450 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1451 [1] 1452 <reboot in single user> [3] 1453 mergemaster -p [5] 1454 make installworld 1455 make delete-old 1456 mergemaster -i [4] 1457 <reboot> 1458 1459 Make sure that you've read the UPDATING file to understand the 1460 tweaks to various things you need. At this point in the life 1461 cycle of current, things change often and you are on your own 1462 to cope. The defaults can also change, so please read ALL of 1463 the UPDATING entries. 1464 1465 Also, if you are tracking -current, you must be subscribed to 1466 freebsd-current@freebsd.org. Make sure that before you update 1467 your sources that you have read and understood all the recent 1468 messages there. If in doubt, please track -stable which has 1469 much fewer pitfalls. 1470 1471 [1] If you have third party modules, such as vmware, you 1472 should disable them at this point so they don't crash your 1473 system on reboot. 1474 1475 [3] From the bootblocks, boot -s, and then do 1476 fsck -p 1477 mount -u / 1478 mount -a 1479 cd src 1480 adjkerntz -i # if CMOS is wall time 1481 Also, when doing a major release upgrade, it is required that 1482 you boot into single user mode to do the installworld. 1483 1484 [4] Note: This step is non-optional. Failure to do this step 1485 can result in a significant reduction in the functionality of the 1486 system. Attempting to do it by hand is not recommended and those 1487 that pursue this avenue should read this file carefully, as well 1488 as the archives of freebsd-current and freebsd-hackers mailing lists 1489 for potential gotchas. 1490 1491 [5] Usually this step is a noop. However, from time to time 1492 you may need to do this if you get unknown user in the following 1493 step. It never hurts to do it all the time. You may need to 1494 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1495 install) after the buildworld before this step if you last updated 1496 from current before 20020224 or from -stable before 20020408. 1497 1498 [8] In order to have a kernel that can run the 4.x binaries 1499 needed to do an installworld, you must include the COMPAT_FREEBSD4 1500 option in your kernel. Failure to do so may leave you with a system 1501 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1502 is required to run the 5.x binaries on more recent kernels. 1503 1504 Make sure that you merge any new devices from GENERIC since the 1505 last time you updated your kernel config file. 1506 1507 [9] When checking out sources, you must include the -P flag to have 1508 cvs prune empty directories. 1509 1510 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1511 "?=" instead of the "=" assignment operator, so that buildworld can 1512 override the CPUTYPE if it needs to. 1513 1514 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1515 not on the command line, or in /etc/make.conf. buildworld will 1516 warn if it is improperly defined. 1517FORMAT: 1518 1519This file contains a list, in reverse chronological order, of major 1520breakages in tracking -current. Not all things will be listed here, 1521and it only starts on October 16, 2004. Updating files can found in 1522previous releases if your system is older than this. 1523 1524Copyright information: 1525 1526Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1527 1528Redistribution, publication, translation and use, with or without 1529modification, in full or in part, in any form or format of this 1530document are permitted without further permission from the author. 1531 1532THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1533IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1534WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1535DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1536INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1537(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1538SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1539HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1540STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1541IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1542POSSIBILITY OF SUCH DAMAGE. 1543 1544If you find this document useful, and you want to, you may buy the 1545author a beer. 1546 1547Contact Warner Losh if you have any questions about your use of 1548this document. 1549 1550$FreeBSD: head/UPDATING 193011 2009-05-29 01:49:27Z attilio $ 1551