UPDATING revision 192895
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 2520090527: 26 Add support for hierarchical jails. Remove global securelevel. 27 Bump __FreeBSD_version to 800091. 28 2920090523: 30 The layout of struct vnet_net has changed, therefore modules 31 need to be rebuilt. 32 Bump __FreeBSD_version to 800090. 33 3420090523: 35 The newly imported zic(8) produces a new format in the 36 output. Please run tzsetup(8) to install the newly created 37 data to /etc/localtime. 38 3920090520: 40 The sysctl tree for the usb stack has renamed from hw.usb2.* to 41 hw.usb.* and is now consistent again with previous releases. 42 4320090520: 44 802.11 monitor mode support was revised and driver api's 45 were changed. Drivers dependent on net80211 now support 46 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 47 user-visible data structures were changed but applications 48 that use DLT_IEEE802_11 may require changes. 49 Bump __FreeBSD_version to 800088. 50 5120090430: 52 The layout of the following structs has changed: sysctl_oid, 53 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 54 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 55 panics may be experienced. World rebuild is required for 56 correctly checking networking state from userland. 57 Bump __FreeBSD_version to 800085. 58 5920090429: 60 MLDv2 and Source-Specific Multicast (SSM) have been merged 61 to the IPv6 stack. VIMAGE hooks are in but not yet used. 62 The implementation of SSM within FreeBSD's IPv6 stack closely 63 follows the IPv4 implementation. 64 65 For kernel developers: 66 67 * The most important changes are that the ip6_output() and 68 ip6_input() paths no longer take the IN6_MULTI_LOCK, 69 and this lock has been downgraded to a non-recursive mutex. 70 71 * As with the changes to the IPv4 stack to support SSM, filtering 72 of inbound multicast traffic must now be performed by transport 73 protocols within the IPv6 stack. This does not apply to TCP and 74 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 75 76 * The KPIs used by IPv6 multicast are similar to those used by 77 the IPv4 stack, with the following differences: 78 * im6o_mc_filter() is analogous to imo_multicast_filter(). 79 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 80 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 81 * IN6_LOOKUP_MULTI() has been deprecated and removed. 82 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 83 for MLDv1 have an additional 'timer' argument which is used to 84 jitter the initial membership report for the solicited-node 85 multicast membership on-link. 86 * This is not strictly needed for MLDv2, which already jitters 87 its report transmissions. However, the 'timer' argument is 88 preserved in case MLDv1 is active on the interface. 89 90 * The KAME linked-list based IPv6 membership implementation has 91 been refactored to use a vector similar to that used by the IPv4 92 stack. 93 Code which maintains a list of its own multicast memberships 94 internally, e.g. carp, has been updated to reflect the new 95 semantics. 96 97 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 98 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 99 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 100 implementation constraint which needs to be addressed in HEAD. 101 102 For application developers: 103 104 * The changes are broadly similar to those made for the IPv4 105 stack. 106 107 * The use of IPv4 and IPv6 multicast socket options on the same 108 socket, using mapped addresses, HAS NOT been tested or supported. 109 110 * There are a number of issues with the implementation of various 111 IPv6 multicast APIs which need to be resolved in the API surface 112 before the implementation is fully compatible with KAME userland 113 use, and these are mostly to do with interface index treatment. 114 115 * The literature available discusses the use of either the delta / ASM 116 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 117 using setsourcefilter(3)/getsourcefilter(3). For more information 118 please refer to RFC 3768, 'Socket Interface Extensions for 119 Multicast Source Filters'. 120 121 * Applications which use the published RFC 3678 APIs should be fine. 122 123 For systems administrators: 124 125 * The mtest(8) utility has been refactored to support IPv6, in 126 addition to IPv4. Interface addresses are no longer accepted 127 as arguments, their names must be used instead. The utility 128 will map the interface name to its first IPv4 address as 129 returned by getifaddrs(3). 130 131 * The ifmcstat(8) utility has also been updated to print the MLDv2 132 endpoint state and source filter lists via sysctl(3). 133 134 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 135 loopback of IPv6 multicast datagrams by default; it defaults to 1 136 to preserve the existing behaviour. Disabling multicast loopback is 137 recommended for optimal system performance. 138 139 * The IPv6 MROUTING code has been changed to examine this sysctl 140 instead of attempting to perform a group lookup before looping 141 back forwarded datagrams. 142 143 Bump __FreeBSD_version to 800084. 144 14520090422: 146 Implement low-level Bluetooth HCI API. 147 Bump __FreeBSD_version to 800083. 148 14920090419: 150 The layout of struct malloc_type, used by modules to register new 151 memory allocation types, has changed. Most modules will need to 152 be rebuilt or panics may be experienced. 153 Bump __FreeBSD_version to 800081. 154 15520090415: 156 Anticipate overflowing inp_flags - add inp_flags2. 157 This changes most offsets in inpcb, so checking v4 connection 158 state will require a world rebuild. 159 Bump __FreeBSD_version to 800080. 160 16120090415: 162 Add an llentry to struct route and struct route_in6. Modules 163 embedding a struct route will need to be recompiled. 164 Bump __FreeBSD_version to 800079. 165 16620090414: 167 The size of rt_metrics_lite and by extension rtentry has changed. 168 Networking administration apps will need to be recompiled. 169 The route command now supports show as an alias for get, weighting 170 of routes, sticky and nostick flags to alter the behavior of stateful 171 load balancing. 172 Bump __FreeBSD_version to 800078. 173 17420090408: 175 Do not use Giant for kbdmux(4) locking. This is wrong and 176 apparently causing more problems than it solves. This will 177 re-open the issue where interrupt handlers may race with 178 kbdmux(4) in polling mode. Typical symptoms include (but 179 not limited to) duplicated and/or missing characters when 180 low level console functions (such as gets) are used while 181 interrupts are enabled (for example geli password prompt, 182 mountroot prompt etc.). Disabling kbdmux(4) may help. 183 18420090407: 185 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 186 kernel modules referencing any of the above need to be recompiled. 187 Bump __FreeBSD_version to 800075. 188 18920090320: 190 GEOM_PART has become the default partition slicer for storage devices, 191 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 192 introduces some changes: 193 194 MSDOS/EBR: the devices created from MSDOS extended partition entries 195 (EBR) can be named differently than with GEOM_MBR and are now symlinks 196 to devices with offset-based names. fstabs may need to be modified. 197 198 BSD: the "geometry does not match label" warning is harmless in most 199 cases but it points to problems in file system misalignment with 200 disk geometry. The "c" partition is now implicit, covers the whole 201 top-level drive and cannot be (mis)used by users. 202 203 General: Kernel dumps are now not allowed to be written to devices 204 whose partition types indicate they are meant to be used for file 205 systems (or, in case of MSDOS partitions, as something else than 206 the "386BSD" type). 207 208 Most of these changes date approximately from 200812. 209 21020090319: 211 The uscanner(4) driver has been removed from the kernel. This follows 212 Linux removing theirs in 2.6 and making libusb the default interface 213 (supported by sane). 214 21520090319: 216 The multicast forwarding code has been cleaned up. netstat(1) 217 only relies on KVM now for printing bandwidth upcall meters. 218 The IPv4 and IPv6 modules are split into ip_mroute_mod and 219 ip6_mroute_mod respectively. The config(5) options for statically 220 compiling this code remain the same, i.e. 'options MROUTING'. 221 22220090315: 223 Support for the IFF_NEEDSGIANT network interface flag has been 224 removed, which means that non-MPSAFE network device drivers are no 225 longer supported. In particular, if_ar, if_sr, and network device 226 drivers from the old (legacy) USB stack can no longer be built or 227 used. 228 22920090313: 230 POSIX.1 Native Language Support (NLS) has been enabled in libc and 231 a bunch of new language catalog files have also been added. 232 This means that some common libc messages are now localized and 233 they depend on the LC_MESSAGES environmental variable. 234 23520090313: 236 The k8temp(4) driver has been renamed to amdtemp(4) since 237 support for K10 and K11 CPU families was added. 238 23920090309: 240 IGMPv3 and Source-Specific Multicast (SSM) have been merged 241 to the IPv4 stack. VIMAGE hooks are in but not yet used. 242 243 For kernel developers, the most important changes are that the 244 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 245 and this lock has been downgraded to a non-recursive mutex. 246 247 Transport protocols (UDP, Raw IP) are now responsible for filtering 248 inbound multicast traffic according to group membership and source 249 filters. The imo_multicast_filter() KPI exists for this purpose. 250 Transports which do not use multicast (SCTP, TCP) already reject 251 multicast by default. Forwarding and receive performance may improve 252 as a mutex acquisition is no longer needed in the ip_input() 253 low-level input path. in_addmulti() and in_delmulti() are shimmed 254 to new KPIs which exist to support SSM in-kernel. 255 256 For application developers, it is recommended that loopback of 257 multicast datagrams be disabled for best performance, as this 258 will still cause the lock to be taken for each looped-back 259 datagram transmission. The net.inet.ip.mcast.loop sysctl may 260 be tuned to 0 to disable loopback by default; it defaults to 1 261 to preserve the existing behaviour. 262 263 For systems administrators, to obtain best performance with 264 multicast reception and multiple groups, it is always recommended 265 that a card with a suitably precise hash filter is used. Hash 266 collisions will still result in the lock being taken within the 267 transport protocol input path to check group membership. 268 269 If deploying FreeBSD in an environment with IGMP snooping switches, 270 it is recommended that the net.inet.igmp.sendlocal sysctl remain 271 enabled; this forces 224.0.0.0/24 group membership to be announced 272 via IGMP. 273 274 The size of 'struct igmpstat' has changed; netstat needs to be 275 recompiled to reflect this. 276 Bump __FreeBSD_version to 800070. 277 27820090309: 279 libusb20.so.1 is now installed as libusb.so.1 and the ports system 280 updated to use it. This requires a buildworld/installworld in order to 281 update the library and dependencies (usbconfig, etc). Its advisable to 282 rebuild all ports which uses libusb. More specific directions are given 283 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 284 libusb are no longer required and can be removed. 285 28620090302: 287 A workaround is committed to allow the creation of System V shared 288 memory segment of size > 2 GB on the 64-bit architectures. 289 Due to a limitation of the existing ABI, the shm_segsz member 290 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 291 wrong for large segments. Note that limits must be explicitly 292 raised to allow such segments to be created. 293 29420090301: 295 The layout of struct ifnet has changed, requiring a rebuild of all 296 network device driver modules. 297 29820090227: 299 The /dev handling for the new USB stack has changed, a 300 buildworld/installworld is required for libusb20. 301 30220090223: 303 The new USB2 stack has now been permanently moved in and all kernel and 304 module names reverted to their previous values (eg, usb, ehci, ohci, 305 ums, ...). The old usb stack can be compiled in by prefixing the name 306 with the letter 'o', the old usb modules have been removed. 307 Updating entry 20090216 for xorg and 20090215 for libmap may still 308 apply. 309 31020090217: 311 The rc.conf(5) option if_up_delay has been renamed to 312 defaultroute_delay to better reflect its purpose. If you have 313 customized this setting in /etc/rc.conf you need to update it to 314 use the new name. 315 31620090216: 317 xorg 7.4 wants to configure its input devices via hald which does not 318 yet work with USB2. If the keyboard/mouse does not work in xorg then 319 add 320 Option "AllowEmptyInput" "off" 321 to your ServerLayout section. This will cause X to use the configured 322 kbd and mouse sections from your xorg.conf. 323 32420090215: 325 The GENERIC kernels for all architectures now default to the new USB2 326 stack. No kernel config options or code have been removed so if a 327 problem arises please report it and optionally revert to the old USB 328 stack. If you are loading USB kernel modules or have a custom kernel 329 that includes GENERIC then ensure that usb names are also changed over, 330 eg uftdi -> usb2_serial_ftdi. 331 332 Older programs linked against the ports libusb 0.1 need to be 333 redirected to the new stack's libusb20. /etc/libmap.conf can 334 be used for this: 335 # Map old usb library to new one for usb2 stack 336 libusb-0.1.so.8 libusb20.so.1 337 33820090203: 339 The ichsmb(4) driver has been changed to require SMBus slave 340 addresses be left-justified (xxxxxxx0b) rather than right-justified. 341 All of the other SMBus controller drivers require left-justified 342 slave addresses, so this change makes all the drivers provide the 343 same interface. 344 34520090201: 346 INET6 statistics (struct ip6stat) was updated. 347 netstat(1) needs to be recompiled. 348 34920090119: 350 NTFS has been removed from GENERIC kernel on amd64 to match 351 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 352 will load ntfs.ko module automatically when NTFS support is 353 actually needed, unless ntfs.ko is not installed or security 354 level prohibits loading kernel modules. If either is the case, 355 "options NTFS" has to be added into kernel config. 356 35720090115: 358 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 359 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 360 800061. User space tools that rely on the size of struct tcpcb in 361 tcp_var.h (e.g. sockstat) need to be recompiled. 362 36320081225: 364 ng_tty(4) module updated to match the new TTY subsystem. 365 Due to API change, user-level applications must be updated. 366 New API support added to mpd5 CVS and expected to be present 367 in next mpd5.3 release. 368 36920081219: 370 With __FreeBSD_version 800060 the makefs tool is part of 371 the base system (it was a port). 372 37320081216: 374 The afdata and ifnet locks have been changed from mutexes to 375 rwlocks, network modules will need to be re-compiled. 376 37720081214: 378 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 379 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 380 The new code reduced struct rtentry{} by 16 bytes on 32-bit 381 architecture and 40 bytes on 64-bit architecture. The userland 382 applications "arp" and "ndp" have been updated accordingly. 383 The output from "netstat -r" shows only routing entries and 384 none of the L2 information. 385 38620081130: 387 __FreeBSD_version 800057 marks the switchover from the 388 binary ath hal to source code. Users must add the line: 389 390 options AH_SUPPORT_AR5416 391 392 to their kernel config files when specifying: 393 394 device ath_hal 395 396 The ath_hal module no longer exists; the code is now compiled 397 together with the driver in the ath module. It is now 398 possible to tailor chip support (i.e. reduce the set of chips 399 and thereby the code size); consult ath_hal(4) for details. 400 40120081121: 402 __FreeBSD_version 800054 adds memory barriers to 403 <machine/atomic.h>, new interfaces to ifnet to facilitate 404 multiple hardware transmit queues for cards that support 405 them, and a lock-less ring-buffer implementation to 406 enable drivers to more efficiently manage queueing of 407 packets. 408 40920081117: 410 A new version of ZFS (version 13) has been merged to -HEAD. 411 This version has zpool attribute "listsnapshots" off by 412 default, which means "zfs list" does not show snapshots, 413 and is the same as Solaris behavior. 414 41520081028: 416 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 417 41820081009: 419 The uhci, ohci, ehci and slhci USB Host controller drivers have 420 been put into separate modules. If you load the usb module 421 separately through loader.conf you will need to load the 422 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 423 controller add the following to loader.conf: 424 425 uhci_load="YES" 426 ehci_load="YES" 427 42820081009: 429 The ABI used by the PMC toolset has changed. Please keep 430 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 431 sync. 432 43320080820: 434 The TTY subsystem of the kernel has been replaced by a new 435 implementation, which provides better scalability and an 436 improved driver model. Most common drivers have been migrated to 437 the new TTY subsystem, while others have not. The following 438 drivers have not yet been ported to the new TTY layer: 439 440 PCI/ISA: 441 cy, digi, rc, rp, sio 442 443 USB: 444 ubser, ucycom 445 446 Line disciplines: 447 ng_h4, ng_tty, ppp, sl, snp 448 449 Adding these drivers to your kernel configuration file shall 450 cause compilation to fail. 451 45220080818: 453 ntpd has been upgraded to 4.2.4p5. 454 45520080801: 456 OpenSSH has been upgraded to 5.1p1. 457 458 For many years, FreeBSD's version of OpenSSH preferred DSA 459 over RSA for host and user authentication keys. With this 460 upgrade, we've switched to the vendor's default of RSA over 461 DSA. This may cause upgraded clients to warn about unknown 462 host keys even for previously known hosts. Users should 463 follow the usual procedure for verifying host keys before 464 accepting the RSA key. 465 466 This can be circumvented by setting the "HostKeyAlgorithms" 467 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 468 command line. 469 470 Please note that the sequence of keys offered for 471 authentication has been changed as well. You may want to 472 specify IdentityFile in a different order to revert this 473 behavior. 474 47520080713: 476 The sio(4) driver has been removed from the i386 and amd64 477 kernel configuration files. This means uart(4) is now the 478 default serial port driver on those platforms as well. 479 480 To prevent collisions with the sio(4) driver, the uart(4) driver 481 uses different names for its device nodes. This means the 482 onboard serial port will now most likely be called "ttyu0" 483 instead of "ttyd0". You may need to reconfigure applications to 484 use the new device names. 485 486 When using the serial port as a boot console, be sure to update 487 /boot/device.hints and /etc/ttys before booting the new kernel. 488 If you forget to do so, you can still manually specify the hints 489 at the loader prompt: 490 491 set hint.uart.0.at="isa" 492 set hint.uart.0.port="0x3F8" 493 set hint.uart.0.flags="0x10" 494 set hint.uart.0.irq="4" 495 boot -s 496 49720080609: 498 The gpt(8) utility has been removed. Use gpart(8) to partition 499 disks instead. 500 50120080603: 502 The version that Linuxulator emulates was changed from 2.4.2 503 to 2.6.16. If you experience any problems with Linux binaries 504 please try to set sysctl compat.linux.osrelease to 2.4.2 and 505 if it fixes the problem contact emulation mailing list. 506 50720080525: 508 ISDN4BSD (I4B) was removed from the src tree. You may need to 509 update a your kernel configuration and remove relevant entries. 510 51120080509: 512 I have checked in code to support multiple routing tables. 513 See the man pages setfib(1) and setfib(2). 514 This is a hopefully backwards compatible version, 515 but to make use of it you need to compile your kernel 516 with options ROUTETABLES=2 (or more up to 16). 517 51820080420: 519 The 802.11 wireless support was redone to enable multi-bss 520 operation on devices that are capable. The underlying device 521 is no longer used directly but instead wlanX devices are 522 cloned with ifconfig. This requires changes to rc.conf files. 523 For example, change: 524 ifconfig_ath0="WPA DHCP" 525 to 526 wlans_ath0=wlan0 527 ifconfig_wlan0="WPA DHCP" 528 see rc.conf(5) for more details. In addition, mergemaster of 529 /etc/rc.d is highly recommended. Simultaneous update of userland 530 and kernel wouldn't hurt either. 531 532 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 533 modules were merged into the base wlan module. All references 534 to these modules (e.g. in kernel config files) must be removed. 535 53620080408: 537 psm(4) has gained write(2) support in native operation level. 538 Arbitrary commands can be written to /dev/psm%d and status can 539 be read back from it. Therefore, an application is responsible 540 for status validation and error recovery. It is a no-op in 541 other operation levels. 542 54320080312: 544 Support for KSE threading has been removed from the kernel. To 545 run legacy applications linked against KSE libmap.conf may 546 be used. The following libmap.conf may be used to ensure 547 compatibility with any prior release: 548 549 libpthread.so.1 libthr.so.1 550 libpthread.so.2 libthr.so.2 551 libkse.so.3 libthr.so.3 552 55320080301: 554 The layout of struct vmspace has changed. This affects libkvm 555 and any executables that link against libkvm and use the 556 kvm_getprocs() function. In particular, but not exclusively, 557 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 558 The effects are minimal, but it's advisable to upgrade world 559 nonetheless. 560 56120080229: 562 The latest em driver no longer has support in it for the 563 82575 adapter, this is now moved to the igb driver. The 564 split was done to make new features that are incompatible 565 with older hardware easier to do. 566 56720080220: 568 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 569 likewise the kernel option is now GEOM_LINUX_LVM. 570 57120080211: 572 The default NFS mount mode has changed from UDP to TCP for 573 increased reliability. If you rely on (insecurely) NFS 574 mounting across a firewall you may need to update your 575 firewall rules. 576 57720080208: 578 Belatedly note the addition of m_collapse for compacting 579 mbuf chains. 580 58120080126: 582 The fts(3) structures have been changed to use adequate 583 integer types for their members and so to be able to cope 584 with huge file trees. The old fts(3) ABI is preserved 585 through symbol versioning in libc, so third-party binaries 586 using fts(3) should still work, although they will not take 587 advantage of the extended types. At the same time, some 588 third-party software might fail to build after this change 589 due to unportable assumptions made in its source code about 590 fts(3) structure members. Such software should be fixed 591 by its vendor or, in the worst case, in the ports tree. 592 FreeBSD_version 800015 marks this change for the unlikely 593 case that a portable fix is impossible. 594 59520080123: 596 To upgrade to -current after this date, you must be running 597 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 598 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 599 60020071128: 601 The ADAPTIVE_GIANT kernel option has been retired because its 602 functionality is the default now. 603 60420071118: 605 The AT keyboard emulation of sunkbd(4) has been turned on 606 by default. In order to make the special symbols of the Sun 607 keyboards driven by sunkbd(4) work under X these now have 608 to be configured the same way as Sun USB keyboards driven 609 by ukbd(4) (which also does AT keyboard emulation), f.e.: 610 611 Option "XkbLayout" "us" 612 Option "XkbRules" "xorg" 613 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 614 61520071024: 616 It has been decided that it is desirable to provide ABI 617 backwards compatibility to the FreeBSD 4/5/6 versions of the 618 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 619 broken with the introduction of PCI domain support (see the 620 20070930 entry). Unfortunately, this required the ABI of 621 PCIOCGETCONF to be broken again in order to be able to 622 provide backwards compatibility to the old version of that 623 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 624 again. As for prominent ports this affects neither pciutils 625 nor xorg-server this time, the hal port needs to be rebuilt 626 however. 627 62820071020: 629 The misnamed kthread_create() and friends have been renamed 630 to kproc_create() etc. Many of the callers already 631 used kproc_start().. 632 I will return kthread_create() and friends in a while 633 with implementations that actually create threads, not procs. 634 Renaming corresponds with version 800002. 635 63620071010: 637 RELENG_7 branched. 638 63920071009: 640 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 641 WITHOUT_LIBTHR are set. 642 64320070930: 644 The PCI code has been made aware of PCI domains. This means that 645 the location strings as used by pciconf(8) etc are now in the 646 following format: pci<domain>:<bus>:<device>[:<function>]. It 647 also means that consumers of <sys/pciio.h> potentially need to 648 be recompiled; this includes the hal and xorg-server ports. 649 65020070928: 651 The caching daemon (cached) was renamed to nscd. nscd.conf 652 configuration file should be used instead of cached.conf and 653 nscd_enable, nscd_pidfile and nscd_flags options should be used 654 instead of cached_enable, cached_pidfile and cached_flags in 655 rc.conf. 656 65720070921: 658 The getfacl(1) utility now prints owning user and group name 659 instead of owning uid and gid in the three line comment header. 660 This is the same behavior as getfacl(1) on Solaris and Linux. 661 66220070704: 663 The new IPsec code is now compiled in using the IPSEC option. The 664 IPSEC option now requires "device crypto" be defined in your kernel 665 configuration. The FAST_IPSEC kernel option is now deprecated. 666 66720070702: 668 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 669 note the changed syntax - keep state is now on by default. Also 670 note the fact that ftp-proxy(8) has been changed from bottom up and 671 has been moved from libexec to usr/sbin. Changes in the ALTQ 672 handling also affect users of IPFW's ALTQ capabilities. 673 67420070701: 675 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 676 only IPsec supported by FreeBSD. The new IPsec stack 677 supports both IPv4 and IPv6. The kernel option will change 678 after the code changes have settled in. For now the kernel 679 option IPSEC is deprecated and FAST_IPSEC is the only option, that 680 will change after some settling time. 681 68220070701: 683 The wicontrol(8) utility has been removed from the base system. wi(4) 684 cards should be configured using ifconfig(8), see the man page for more 685 information. 686 68720070612: 688 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 689 instead of the nve(4) driver. Please update your configuration 690 accordingly. 691 69220070612: 693 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 694 database if it is missing or older than the aliases file. If 695 desired, set the new rc.conf option sendmail_rebuild_aliases 696 to "YES" to restore that functionality. 697 69820070612: 699 The IPv4 multicast socket code has been considerably modified, and 700 moved to the file sys/netinet/in_mcast.c. Initial support for the 701 RFC 3678 Source-Specific Multicast Socket API has been added to 702 the IPv4 network stack. 703 704 Strict multicast and broadcast reception is now the default for 705 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 706 has now been removed. 707 708 The RFC 1724 hack for interface selection has been removed; the use 709 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 710 been added to replace it. Consumers such as routed will soon be 711 updated to reflect this. 712 713 These changes affect users who are running routed(8) or rdisc(8) 714 from the FreeBSD base system on point-to-point or unnumbered 715 interfaces. 716 71720070610: 718 The net80211 layer has changed significantly and all wireless 719 drivers that depend on it need to be recompiled. Further these 720 changes require that any program that interacts with the wireless 721 support in the kernel be recompiled; this includes: ifconfig, 722 wpa_supplicant, hostapd, and wlanstats. Users must also, for 723 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 724 if they use modules for wireless support. These modules implement 725 scanning support for station and ap modes, respectively. Failure 726 to load the appropriate module before marking a wireless interface 727 up will result in a message to the console and the device not 728 operating properly. 729 73020070610: 731 The pam_nologin(8) module ceases to provide an authentication 732 function and starts providing an account management function. 733 Consequent changes to /etc/pam.d should be brought in using 734 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 735 need manual editing as follows. Locate this line (or similar): 736 737 auth required pam_nologin.so no_warn 738 739 and change it according to this example: 740 741 account required pam_nologin.so no_warn 742 743 That is, the first word needs to be changed from "auth" to 744 "account". The new line can be moved to the account section 745 within the file for clarity. Not updating pam.conf(5) files 746 will result in nologin(5) ignored by the respective services. 747 74820070529: 749 The ether_ioctl() function has been synchronized with ioctl(2) 750 and ifnet.if_ioctl. Due to that, the size of one of its arguments 751 has changed on 64-bit architectures. All kernel modules using 752 ether_ioctl() need to be rebuilt on such architectures. 753 75420070516: 755 Improved INCLUDE_CONFIG_FILE support has been introduced to the 756 config(8) utility. In order to take advantage of this new 757 functionality, you are expected to recompile and install 758 src/usr.sbin/config. If you don't rebuild config(8), and your 759 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 760 build will be broken because of a missing "kernconfstring" 761 symbol. 762 76320070513: 764 Symbol versioning is enabled by default. To disable it, use 765 option WITHOUT_SYMVER. It is not advisable to attempt to 766 disable symbol versioning once it is enabled; your installworld 767 will break because a symbol version-less libc will get installed 768 before the install tools. As a result, the old install tools, 769 which previously had symbol dependencies to FBSD_1.0, will fail 770 because the freshly installed libc will not have them. 771 772 The default threading library (providing "libpthread") has been 773 changed to libthr. If you wish to have libkse as your default, 774 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 775 77620070423: 777 The ABI breakage in sendmail(8)'s libmilter has been repaired 778 so it is no longer necessary to recompile mail filters (aka, 779 milters). If you recompiled mail filters after the 20070408 780 note, it is not necessary to recompile them again. 781 78220070417: 783 The new trunk(4) driver has been renamed to lagg(4) as it better 784 reflects its purpose. ifconfig will need to be recompiled. 785 78620070408: 787 sendmail(8) has been updated to version 8.14.1. Mail filters 788 (aka, milters) compiled against the libmilter included in the 789 base operating system should be recompiled. 790 79120070302: 792 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 793 In order to use them one must agree to the respective LICENSE in 794 share/doc/legal and define legal.intel_<name>.license_ack=1 via 795 loader.conf(5) or kenv(1). Make sure to deinstall the now 796 deprecated modules from the respective firmware ports. 797 79820070228: 799 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 800 were removed from FreeBSD's libc. These originally came from INRIA 801 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 802 deprecated in previous releases. 803 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 804 replace it as a more portable (and re-entrant) API. 805 80620070224: 807 To support interrupt filtering a modification to the newbus API 808 has occurred, ABI was broken and __FreeBSD_version was bumped 809 to 700031. Please make sure that your kernel and modules are in 810 sync. For more info: 811 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 812 81320070224: 814 The IPv6 multicast forwarding code may now be loaded into GENERIC 815 kernels by loading the ip_mroute.ko module. This is built into the 816 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 817 set; see src.conf(5) for more information. 818 81920070214: 820 The output of netstat -r has changed. Without -n, we now only 821 print a "network name" without the prefix length if the network 822 address and mask exactly match a Class A/B/C network, and an entry 823 exists in the nsswitch "networks" map. 824 With -n, we print the full unabbreviated CIDR network prefix in 825 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 826 This change is in preparation for changes such as equal-cost 827 multipath, and to more generally assist operational deployment 828 of FreeBSD as a modern IPv4 router. 829 83020070210: 831 PIM has been turned on by default in the IPv4 multicast 832 routing code. The kernel option 'PIM' has now been removed. 833 PIM is now built by default if option 'MROUTING' is specified. 834 It may now be loaded into GENERIC kernels by loading the 835 ip_mroute.ko module. 836 83720070207: 838 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 839 has been removed. Its functionality may be achieved by explicitly 840 configuring gif(4) interfaces and using the 'phyint' keyword in 841 mrouted.conf. 842 XORP does not support source-routed IPv4 multicast tunnels nor the 843 integrated IPIP tunneling, therefore it is not affected by this 844 change. The __FreeBSD_version macro has been bumped to 700030. 845 84620061221: 847 Support for PCI Message Signalled Interrupts has been 848 re-enabled in the bge driver, only for those chips which are 849 believed to support it properly. If there are any problems, 850 MSI can be disabled completely by setting the 851 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 852 in the loader. 853 85420061214: 855 Support for PCI Message Signalled Interrupts has been 856 disabled again in the bge driver. Many revisions of the 857 hardware fail to support it properly. Support can be 858 re-enabled by removing the #define of BGE_DISABLE_MSI in 859 "src/sys/dev/bge/if_bge.c". 860 86120061214: 862 Support for PCI Message Signalled Interrupts has been added 863 to the bge driver. If there are any problems, MSI can be 864 disabled completely by setting the 'hw.pci.enable_msi' and 865 'hw.pci.enable_msix' tunables to 0 in the loader. 866 86720061205: 868 The removal of several facets of the experimental Threading 869 system from the kernel means that the proc and thread structures 870 have changed quite a bit. I suggest all kernel modules that might 871 reference these structures be recompiled.. Especially the 872 linux module. 873 87420061126: 875 Sound infrastructure has been updated with various fixes and 876 improvements. Most of the changes are pretty much transparent, 877 with exceptions of followings: 878 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 879 moved to their own dev sysctl nodes, for example: 880 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 881 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 882 own chardev in the form of "dsp%d.<function>%d", where <function> 883 is p = playback, r = record and v = virtual, respectively. Users 884 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 885 This does not affect those who are using "/dev/dsp". 886 88720061122: 888 geom(4)'s gmirror(8) class metadata structure has been 889 rev'd from v3 to v4. If you update across this point and 890 your metadata is converted for you, you will not be easily 891 able to downgrade since the /boot/kernel.old/geom_mirror.ko 892 kernel module will be unable to read the v4 metadata. You 893 can resolve this by doing from the loader(8) prompt: 894 895 set vfs.root.mountfrom="ufs:/dev/XXX" 896 897 where XXX is the root slice of one of the disks that composed 898 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 899 the array the same way you built it originally. 900 90120061122: 902 The following binaries have been disconnected from the build: 903 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 904 and mount_std. The functionality of these programs has been 905 moved into the mount program. For example, to mount a devfs 906 filesystem, instead of using mount_devfs, use: "mount -t devfs". 907 This does not affect entries in /etc/fstab, since entries in 908 /etc/fstab are always processed with "mount -t fstype". 909 91020061113: 911 Support for PCI Message Signalled Interrupts on i386 and amd64 912 has been added to the kernel and various drivers will soon be 913 updated to use MSI when it is available. If there are any problems, 914 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 915 and 'hw.pci.enable_msix' tunables to 0 in the loader. 916 91720061110: 918 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 919 The lockmgr object layout has been changed as a result of having 920 a lock_object embedded in it. As a consequence all file system 921 kernel modules must be re-compiled. The mutex profiling man page 922 has not yet been updated to reflect this change. 923 92420061026: 925 KSE in the kernel has now been made optional and turned on by 926 default. Use 'nooption KSE' in your kernel config to turn it 927 off. All kernel modules *must* be recompiled after this change. 928 There-after, modules from a KSE kernel should be compatible with 929 modules from a NOKSE kernel due to the temporary padding fields 930 added to 'struct proc'. 931 93220060929: 933 mrouted and its utilities have been removed from the base system. 934 93520060927: 936 Some ioctl(2) command codes have changed. Full backward ABI 937 compatibility is provided if the "options COMPAT_FREEBSD6" is 938 present in the kernel configuration file. Make sure to add 939 this option to your kernel config file, or recompile X.Org 940 and the rest of ports; otherwise they may refuse to work. 941 94220060924: 943 tcpslice has been removed from the base system. 944 94520060913: 946 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 947 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 948 systat needs to be rebuilt. 949 95020060903: 951 libpcap updated to v0.9.4 and tcpdump to v3.9.4 952 95320060816: 954 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 955 for IPFIREWALL_FORWARD is now as it was before when it was first 956 committed and for years after. The behaviour is now ON. 957 95820060725: 959 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 960 Now it can decrypt files created from different architectures. 961 Unfortunately, it is no longer able to decrypt a cipher text 962 generated with an older version on 64 bit architectures. 963 If you have such a file, you need old utility to decrypt it. 964 96520060709: 966 The interface version of the i4b kernel part has changed. So 967 after updating the kernel sources and compiling a new kernel, 968 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 969 be rebuilt, and vice versa. 970 97120060627: 972 The XBOX kernel now defaults to the nfe(4) driver instead of 973 the nve(4) driver. Please update your configuration 974 accordingly. 975 97620060514: 977 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 978 PCnet family of NICs has been removed. The new le(4) driver serves 979 as an equivalent but cross-platform replacement with the pcn(4) 980 driver still providing performance-optimized support for the subset 981 of AMD Am79C971 PCnet-FAST and greater chips as before. 982 98320060511: 984 The machdep.* sysctls and the adjkerntz utility have been 985 modified a bit. The new adjkerntz utility uses the new 986 sysctl names and sysctlbyname() calls, so it may be impossible 987 to run an old /sbin/adjkerntz utility in single-user mode 988 with a new kernel. Replace the `adjkerntz -i' step before 989 `make installworld' with: 990 991 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 992 993 and proceed as usual with the rest of the installworld-stage 994 steps. Otherwise, you risk installing binaries with their 995 timestamp set several hours in the future, especially if 996 you are running with local time set to GMT+X hours. 997 99820060412: 999 The ip6fw utility has been removed. The behavior provided by 1000 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1001 have been updated to deal with it. There are some rules that 1002 might not migrate cleanly. Use rc.firewall6 as a template to 1003 rewrite rules. 1004 100520060428: 1006 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1007 attachments have been removed. Make sure to configure scc(4) 1008 on sparc64. Note also that by default puc(4) will use uart(4) 1009 and not sio(4) for serial ports because interrupt handling has 1010 been optimized for multi-port serial cards and only uart(4) 1011 implements the interface to support it. 1012 101320060330: 1014 The scc(4) driver replaces puc(4) for Serial Communications 1015 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1016 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1017 configuration to make sure that the serial ports remain 1018 functional. 1019 102020060317: 1021 Most world/kernel related NO_* build options changed names. 1022 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1023 after FreeBSD ports) and should be set in /etc/src.conf 1024 (the src.conf(5) manpage is provided). Full backwards 1025 compatibility is maintained for the time being though it's 1026 highly recommended to start moving old options out of the 1027 system-wide /etc/make.conf file into the new /etc/src.conf 1028 while also properly renaming them. More conversions will 1029 likely follow. Posting to current@: 1030 1031 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1032 103320060305: 1034 The NETSMBCRYPTO kernel option has been retired because its 1035 functionality is always included in NETSMB and smbfs.ko now. 1036 103720060303: 1038 The TDFX_LINUX kernel option was retired and replaced by the 1039 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1040 kernel module. Loading it alone should suffice to get 3dfx support 1041 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1042 its dependencies. 1043 104420060204: 1045 The 'audit' group was added to support the new auditing functionality 1046 in the base system. Be sure to follow the directions for updating, 1047 including the requirement to run mergemaster -p. 1048 104920060201: 1050 The kernel ABI to file system modules was changed on i386. 1051 Please make sure that your kernel and modules are in sync. 1052 105320060118: 1054 This actually occured some time ago, but installing the kernel 1055 now also installs a bunch of symbol files for the kernel modules. 1056 This increases the size of /boot/kernel to about 67Mbytes. You 1057 will need twice this if you will eventually back this up to kernel.old 1058 on your next install. 1059 If you have a shortage of room in your root partition, you should add 1060 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1061 to your /etc/make.conf. 1062 106320060113: 1064 libc's malloc implementation has been replaced. This change has the 1065 potential to uncover application bugs that previously went unnoticed. 1066 See the malloc(3) manual page for more details. 1067 106820060112: 1069 The generic netgraph(4) cookie has been changed. If you upgrade 1070 kernel passing this point, you also need to upgrade userland 1071 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1072 107320060106: 1074 si(4)'s device files now contain the unit number. 1075 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1076 107720060106: 1078 The kernel ABI was mostly destroyed due to a change in the size 1079 of struct lock_object which is nested in other structures such 1080 as mutexes which are nested in all sorts of other structures. 1081 Make sure your kernel and modules are in sync. 1082 108320051231: 1084 The page coloring algorithm in the VM subsystem was converted 1085 from tuning with kernel options to autotuning. Please remove 1086 any PQ_* option except PQ_NOOPT from your kernel config. 1087 108820051211: 1089 The net80211-related tools in the tools/tools/ath directory 1090 have been moved to tools/tools/net80211 and renamed with a 1091 "wlan" prefix. Scripts that use them should be adjusted 1092 accordingly. 1093 109420051202: 1095 Scripts in the local_startup directories (as defined in 1096 /etc/defaults/rc.conf) that have the new rc.d semantics will 1097 now be run as part of the base system rcorder. If there are 1098 errors or problems with one of these local scripts, it could 1099 cause boot problems. If you encounter such problems, boot in 1100 single user mode, remove that script from the */rc.d directory. 1101 Please report the problem to the port's maintainer, and the 1102 freebsd-ports@freebsd.org mailing list. 1103 110420051129: 1105 The nodev mount option was deprecated in RELENG_6 (where it 1106 was a no-op), and is now unsupported. If you have nodev or dev listed 1107 in /etc/fstab, remove it, otherwise it will result in a mount error. 1108 110920051129: 1110 ABI between ipfw(4) and ipfw(8) has been changed. You need 1111 to rebuild ipfw(8) when rebuilding kernel. 1112 111320051108: 1114 rp(4)'s device files now contain the unit number. 1115 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1116 111720051029: 1118 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1119 Its /etc/rc.conf.d configuration file has been `ppp' from 1120 the beginning, and hence there is no need to touch it. 1121 112220051014: 1123 Now most modules get their build-time options from the kernel 1124 configuration file. A few modules still have fixed options 1125 due to their non-conformant implementation, but they will be 1126 corrected eventually. You may need to review the options of 1127 the modules in use, explicitly specify the non-default options 1128 in the kernel configuration file, and rebuild the kernel and 1129 modules afterwards. 1130 113120051001: 1132 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1133 to turn polling(4) on your interfaces. 1134 113520050927: 1136 The old bridge(4) implementation was retired. The new 1137 if_bridge(4) serves as a full functional replacement. 1138 113920050722: 1140 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1141 to conform to POSIX-2001. This change broke an ABI 1142 compatibility on 64 bit architecture. You have to recompile 1143 userland programs that use getaddrinfo(3) on 64 bit 1144 architecture. 1145 114620050711: 1147 RELENG_6 branched here. 1148 114920050629: 1150 The pccard_ifconfig rc.conf variable has been removed and a new 1151 variable, ifconfig_DEFAULT has been introduced. Unlike 1152 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1153 do not have ifconfig_ifn entries rather than just those in 1154 removable_interfaces. 1155 115620050616: 1157 Some previous versions of PAM have permitted the use of 1158 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1159 to third party PAM modules in /usr/local/lib. A change has been 1160 made to require the use of absolute paths in order to avoid 1161 ambiguity and dependence on library path configuration, which may 1162 affect existing configurations. 1163 116420050610: 1165 Major changes to network interface API. All drivers must be 1166 recompiled. Drivers not in the base system will need to be 1167 updated to the new APIs. 1168 116920050609: 1170 Changes were made to kinfo_proc in sys/user.h. Please recompile 1171 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1172 will not behave correctly. 1173 1174 The API and ABI for hwpmc(4) have changed with the addition 1175 of sampling support. Please recompile lib/libpmc(3) and 1176 usr.sbin/{pmcstat,pmccontrol}. 1177 117820050606: 1179 The OpenBSD dhclient was imported in place of the ISC dhclient 1180 and the network interface configuration scripts were updated 1181 accordingly. If you use DHCP to configure your interfaces, you 1182 must now run devd. Also, DNS updating was lost so you will need 1183 to find a workaround if you use this feature. 1184 1185 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1186 sure to run mergemaster -p (like you are supposed to do every time 1187 anyway). 1188 118920050605: 1190 if_bridge was added to the tree. This has changed struct ifnet. 1191 Please recompile userland and all network related modules. 1192 119320050603: 1194 The n_net of a struct netent was changed to an uint32_t, and 1195 1st argument of getnetbyaddr() was changed to an uint32_t, to 1196 conform to POSIX-2001. These changes broke an ABI 1197 compatibility on 64 bit architecture. With these changes, 1198 shlib major of libpcap was bumped. You have to recompile 1199 userland programs that use getnetbyaddr(3), getnetbyname(3), 1200 getnetent(3) and/or libpcap on 64 bit architecture. 1201 120220050528: 1203 Kernel parsing of extra options on '#!' first lines of shell 1204 scripts has changed. Lines with multiple options likely will 1205 fail after this date. For full details, please see 1206 http://people.freebsd.org/~gad/Updating-20050528.txt 1207 120820050503: 1209 The packet filter (pf) code has been updated to OpenBSD 3.7 1210 Please note the changed anchor syntax and the fact that 1211 authpf(8) now needs a mounted fdescfs(5) to function. 1212 121320050415: 1214 The NO_MIXED_MODE kernel option has been removed from the i386 1215 amd64 platforms as its use has been superceded by the new local 1216 APIC timer code. Any kernel config files containing this option 1217 should be updated. 1218 121920050227: 1220 The on-disk format of LC_CTYPE files was changed to be machine 1221 independent. Please make sure NOT to use NO_CLEAN buildworld 1222 when crossing this point. Crossing this point also requires 1223 recompile or reinstall of all locale depended packages. 1224 122520050225: 1226 The ifi_epoch member of struct if_data has been changed to 1227 contain the uptime at which the interface was created or the 1228 statistics zeroed rather then the wall clock time because 1229 wallclock time may go backwards. This should have no impact 1230 unless an snmp implementation is using this value (I know of 1231 none at this point.) 1232 123320050224: 1234 The acpi_perf and acpi_throttle drivers are now part of the 1235 acpi(4) main module. They are no longer built separately. 1236 123720050223: 1238 The layout of struct image_params has changed. You have to 1239 recompile all compatibility modules (linux, svr4, etc) for use 1240 with the new kernel. 1241 124220050223: 1243 The p4tcc driver has been merged into cpufreq(4). This makes 1244 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1245 compile in "device cpufreq" to restore this functionality. 1246 124720050220: 1248 The responsibility of recomputing the file system summary of 1249 a SoftUpdates-enabled dirty volume has been transferred to the 1250 background fsck. A rebuild of fsck(8) utility is recommended 1251 if you have updated the kernel. 1252 1253 To get the old behavior (recompute file system summary at mount 1254 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1255 mounting the new volume. 1256 125720050206: 1258 The cpufreq import is complete. As part of this, the sysctls for 1259 acpi(4) throttling have been removed. The power_profile script 1260 has been updated, so you can use performance/economy_cpu_freq in 1261 rc.conf(5) to set AC on/offline cpu frequencies. 1262 126320050206: 1264 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1265 requires recompiling libnetgraph and userland netgraph utilities. 1266 126720050114: 1268 Support for abbreviated forms of a number of ipfw options is 1269 now deprecated. Warnings are printed to stderr indicating the 1270 correct full form when a match occurs. Some abbreviations may 1271 be supported at a later date based on user feedback. To be 1272 considered for support, abbreviations must be in use prior to 1273 this commit and unlikely to be confused with current key words. 1274 127520041221: 1276 By a popular demand, a lot of NOFOO options were renamed 1277 to NO_FOO (see bsd.compat.mk for a full list). The old 1278 spellings are still supported, but will cause annoying 1279 warnings on stderr. Make sure you upgrade properly (see 1280 the COMMON ITEMS: section later in this file). 1281 128220041219: 1283 Auto-loading of ancillary wlan modules such as wlan_wep has 1284 been temporarily disabled; you need to statically configure 1285 the modules you need into your kernel or explicitly load them 1286 prior to use. Specifically, if you intend to use WEP encryption 1287 with an 802.11 device load/configure wlan_wep; if you want to 1288 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1289 and wlan_xauth as required. 1290 129120041213: 1292 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1293 (``enable lqr''), older versions would revert to LCP ECHO mode on 1294 negotiation failure. Now, ``enable echo'' is required for this 1295 behaviour. The ppp version number has been bumped to 3.4.2 to 1296 reflect the change. 1297 129820041201: 1299 The wlan support has been updated to split the crypto support 1300 into separate modules. For static WEP you must configure the 1301 wlan_wep module in your system or build and install the module 1302 in place where it can be loaded (the kernel will auto-load 1303 the module when a wep key is configured). 1304 130520041201: 1306 The ath driver has been updated to split the tx rate control 1307 algorithm into a separate module. You need to include either 1308 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1309 131020041116: 1311 Support for systems with an 80386 CPU has been removed. Please 1312 use FreeBSD 5.x or earlier on systems with an 80386. 1313 131420041110: 1315 We have had a hack which would mount the root filesystem 1316 R/W if the device were named 'md*'. As part of the vnode 1317 work I'm doing I have had to remove this hack. People 1318 building systems which use preloaded MD root filesystems 1319 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1320 their /etc/rc scripts. 1321 132220041104: 1323 FreeBSD 5.3 shipped here. 1324 132520041102: 1326 The size of struct tcpcb has changed again due to the removal 1327 of RFC1644 T/TCP. You have to recompile userland programs that 1328 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1329 133020041022: 1331 The size of struct tcpcb has changed. You have to recompile 1332 userland programs that read kmem for tcp sockets directly 1333 (netstat, sockstat, etc.) 1334 133520041016: 1336 RELENG_5 branched here. For older entries, please see updating 1337 in the RELENG_5 branch. 1338 1339COMMON ITEMS: 1340 1341 General Notes 1342 ------------- 1343 Avoid using make -j when upgrading. From time to time in the 1344 past there have been problems using -j with buildworld and/or 1345 installworld. This is especially true when upgrading between 1346 "distant" versions (eg one that cross a major release boundary 1347 or several minor releases, or when several months have passed 1348 on the -current branch). 1349 1350 Sometimes, obscure build problems are the result of environment 1351 poisoning. This can happen because the make utility reads its 1352 environment when searching for values for global variables. 1353 To run your build attempts in an "environmental clean room", 1354 prefix all make commands with 'env -i '. See the env(1) manual 1355 page for more details. 1356 1357 When upgrading from one major version to another it is generally 1358 best to upgrade to the latest code in the currently installed branch 1359 first, then do an upgrade to the new branch. This is the best-tested 1360 upgrade path, and has the highest probability of being successful. 1361 Please try this approach before reporting problems with a major 1362 version upgrade. 1363 1364 To build a kernel 1365 ----------------- 1366 If you are updating from a prior version of FreeBSD (even one just 1367 a few days old), you should follow this procedure. It is the most 1368 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1369 1370 make kernel-toolchain 1371 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1372 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1373 1374 To test a kernel once 1375 --------------------- 1376 If you just want to boot a kernel once (because you are not sure 1377 if it works, or if you want to boot a known bad kernel to provide 1378 debugging information) run 1379 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1380 nextboot -k testkernel 1381 1382 To just build a kernel when you know that it won't mess you up 1383 -------------------------------------------------------------- 1384 This assumes you are already running a 5.X system. Replace 1385 ${arch} with the architecture of your machine (e.g. "i386", 1386 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1387 1388 cd src/sys/${arch}/conf 1389 config KERNEL_NAME_HERE 1390 cd ../compile/KERNEL_NAME_HERE 1391 make depend 1392 make 1393 make install 1394 1395 If this fails, go to the "To build a kernel" section. 1396 1397 To rebuild everything and install it on the current system. 1398 ----------------------------------------------------------- 1399 # Note: sometimes if you are running current you gotta do more than 1400 # is listed here if you are upgrading from a really old current. 1401 1402 <make sure you have good level 0 dumps> 1403 make buildworld 1404 make kernel KERNCONF=YOUR_KERNEL_HERE 1405 [1] 1406 <reboot in single user> [3] 1407 mergemaster -p [5] 1408 make installworld 1409 make delete-old 1410 mergemaster [4] 1411 <reboot> 1412 1413 1414 To cross-install current onto a separate partition 1415 -------------------------------------------------- 1416 # In this approach we use a separate partition to hold 1417 # current's root, 'usr', and 'var' directories. A partition 1418 # holding "/", "/usr" and "/var" should be about 2GB in 1419 # size. 1420 1421 <make sure you have good level 0 dumps> 1422 <boot into -stable> 1423 make buildworld 1424 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1425 <maybe newfs current's root partition> 1426 <mount current's root partition on directory ${CURRENT_ROOT}> 1427 make installworld DESTDIR=${CURRENT_ROOT} 1428 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1429 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1430 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1431 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1432 <reboot into current> 1433 <do a "native" rebuild/install as described in the previous section> 1434 <maybe install compatibility libraries from ports/misc/compat*> 1435 <reboot> 1436 1437 1438 To upgrade in-place from 5.x-stable to current 1439 ---------------------------------------------- 1440 <make sure you have good level 0 dumps> 1441 make buildworld [9] 1442 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1443 [1] 1444 <reboot in single user> [3] 1445 mergemaster -p [5] 1446 make installworld 1447 make delete-old 1448 mergemaster -i [4] 1449 <reboot> 1450 1451 Make sure that you've read the UPDATING file to understand the 1452 tweaks to various things you need. At this point in the life 1453 cycle of current, things change often and you are on your own 1454 to cope. The defaults can also change, so please read ALL of 1455 the UPDATING entries. 1456 1457 Also, if you are tracking -current, you must be subscribed to 1458 freebsd-current@freebsd.org. Make sure that before you update 1459 your sources that you have read and understood all the recent 1460 messages there. If in doubt, please track -stable which has 1461 much fewer pitfalls. 1462 1463 [1] If you have third party modules, such as vmware, you 1464 should disable them at this point so they don't crash your 1465 system on reboot. 1466 1467 [3] From the bootblocks, boot -s, and then do 1468 fsck -p 1469 mount -u / 1470 mount -a 1471 cd src 1472 adjkerntz -i # if CMOS is wall time 1473 Also, when doing a major release upgrade, it is required that 1474 you boot into single user mode to do the installworld. 1475 1476 [4] Note: This step is non-optional. Failure to do this step 1477 can result in a significant reduction in the functionality of the 1478 system. Attempting to do it by hand is not recommended and those 1479 that pursue this avenue should read this file carefully, as well 1480 as the archives of freebsd-current and freebsd-hackers mailing lists 1481 for potential gotchas. 1482 1483 [5] Usually this step is a noop. However, from time to time 1484 you may need to do this if you get unknown user in the following 1485 step. It never hurts to do it all the time. You may need to 1486 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1487 install) after the buildworld before this step if you last updated 1488 from current before 20020224 or from -stable before 20020408. 1489 1490 [8] In order to have a kernel that can run the 4.x binaries 1491 needed to do an installworld, you must include the COMPAT_FREEBSD4 1492 option in your kernel. Failure to do so may leave you with a system 1493 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1494 is required to run the 5.x binaries on more recent kernels. 1495 1496 Make sure that you merge any new devices from GENERIC since the 1497 last time you updated your kernel config file. 1498 1499 [9] When checking out sources, you must include the -P flag to have 1500 cvs prune empty directories. 1501 1502 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1503 "?=" instead of the "=" assignment operator, so that buildworld can 1504 override the CPUTYPE if it needs to. 1505 1506 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1507 not on the command line, or in /etc/make.conf. buildworld will 1508 warn if it is improperly defined. 1509FORMAT: 1510 1511This file contains a list, in reverse chronological order, of major 1512breakages in tracking -current. Not all things will be listed here, 1513and it only starts on October 16, 2004. Updating files can found in 1514previous releases if your system is older than this. 1515 1516Copyright information: 1517 1518Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1519 1520Redistribution, publication, translation and use, with or without 1521modification, in full or in part, in any form or format of this 1522document are permitted without further permission from the author. 1523 1524THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1525IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1526WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1527DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1528INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1529(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1530SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1531HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1532STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1533IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1534POSSIBILITY OF SUCH DAMAGE. 1535 1536If you find this document useful, and you want to, you may buy the 1537author a beer. 1538 1539Contact Warner Losh if you have any questions about your use of 1540this document. 1541 1542$FreeBSD: head/UPDATING 192895 2009-05-27 14:11:23Z jamie $ 1543