UPDATING revision 192625
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 2520090523: 26 The newly imported zic(8) produces a new format in the 27 output. Please run tzsetup(8) to install a newly /etc/localtime. 28 2920090520: 30 The sysctl tree for the usb stack has renamed from hw.usb2.* to 31 hw.usb.* and is now consistent again with previous releases. 32 3320090520: 34 802.11 monitor mode support was revised and driver api's 35 were changed. Drivers dependent on net80211 now support 36 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 37 user-visible data structures were changed but applications 38 that use DLT_IEEE802_11 may require changes. 39 Bump __FreeBSD_version to 800088. 40 4120090430: 42 The layout of the following structs has changed: sysctl_oid, 43 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 44 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 45 panics may be experienced. World rebuild is required for 46 correctly checking networking state from userland. 47 Bump __FreeBSD_version to 800085. 48 4920090429: 50 MLDv2 and Source-Specific Multicast (SSM) have been merged 51 to the IPv6 stack. VIMAGE hooks are in but not yet used. 52 The implementation of SSM within FreeBSD's IPv6 stack closely 53 follows the IPv4 implementation. 54 55 For kernel developers: 56 57 * The most important changes are that the ip6_output() and 58 ip6_input() paths no longer take the IN6_MULTI_LOCK, 59 and this lock has been downgraded to a non-recursive mutex. 60 61 * As with the changes to the IPv4 stack to support SSM, filtering 62 of inbound multicast traffic must now be performed by transport 63 protocols within the IPv6 stack. This does not apply to TCP and 64 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 65 66 * The KPIs used by IPv6 multicast are similar to those used by 67 the IPv4 stack, with the following differences: 68 * im6o_mc_filter() is analogous to imo_multicast_filter(). 69 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 70 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 71 * IN6_LOOKUP_MULTI() has been deprecated and removed. 72 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 73 for MLDv1 have an additional 'timer' argument which is used to 74 jitter the initial membership report for the solicited-node 75 multicast membership on-link. 76 * This is not strictly needed for MLDv2, which already jitters 77 its report transmissions. However, the 'timer' argument is 78 preserved in case MLDv1 is active on the interface. 79 80 * The KAME linked-list based IPv6 membership implementation has 81 been refactored to use a vector similar to that used by the IPv4 82 stack. 83 Code which maintains a list of its own multicast memberships 84 internally, e.g. carp, has been updated to reflect the new 85 semantics. 86 87 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 88 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 89 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 90 implementation constraint which needs to be addressed in HEAD. 91 92 For application developers: 93 94 * The changes are broadly similar to those made for the IPv4 95 stack. 96 97 * The use of IPv4 and IPv6 multicast socket options on the same 98 socket, using mapped addresses, HAS NOT been tested or supported. 99 100 * There are a number of issues with the implementation of various 101 IPv6 multicast APIs which need to be resolved in the API surface 102 before the implementation is fully compatible with KAME userland 103 use, and these are mostly to do with interface index treatment. 104 105 * The literature available discusses the use of either the delta / ASM 106 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 107 using setsourcefilter(3)/getsourcefilter(3). For more information 108 please refer to RFC 3768, 'Socket Interface Extensions for 109 Multicast Source Filters'. 110 111 * Applications which use the published RFC 3678 APIs should be fine. 112 113 For systems administrators: 114 115 * The mtest(8) utility has been refactored to support IPv6, in 116 addition to IPv4. Interface addresses are no longer accepted 117 as arguments, their names must be used instead. The utility 118 will map the interface name to its first IPv4 address as 119 returned by getifaddrs(3). 120 121 * The ifmcstat(8) utility has also been updated to print the MLDv2 122 endpoint state and source filter lists via sysctl(3). 123 124 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 125 loopback of IPv6 multicast datagrams by default; it defaults to 1 126 to preserve the existing behaviour. Disabling multicast loopback is 127 recommended for optimal system performance. 128 129 * The IPv6 MROUTING code has been changed to examine this sysctl 130 instead of attempting to perform a group lookup before looping 131 back forwarded datagrams. 132 133 Bump __FreeBSD_version to 800084. 134 13520090422: 136 Implement low-level Bluetooth HCI API. 137 Bump __FreeBSD_version to 800083. 138 13920090419: 140 The layout of struct malloc_type, used by modules to register new 141 memory allocation types, has changed. Most modules will need to 142 be rebuilt or panics may be experienced. 143 Bump __FreeBSD_version to 800081. 144 14520090415: 146 Anticipate overflowing inp_flags - add inp_flags2. 147 This changes most offsets in inpcb, so checking v4 connection 148 state will require a world rebuild. 149 Bump __FreeBSD_version to 800080. 150 15120090415: 152 Add an llentry to struct route and struct route_in6. Modules 153 embedding a struct route will need to be recompiled. 154 Bump __FreeBSD_version to 800079. 155 15620090414: 157 The size of rt_metrics_lite and by extension rtentry has changed. 158 Networking administration apps will need to be recompiled. 159 The route command now supports show as an alias for get, weighting 160 of routes, sticky and nostick flags to alter the behavior of stateful 161 load balancing. 162 Bump __FreeBSD_version to 800078. 163 16420090408: 165 Do not use Giant for kbdmux(4) locking. This is wrong and 166 apparently causing more problems than it solves. This will 167 re-open the issue where interrupt handlers may race with 168 kbdmux(4) in polling mode. Typical symptoms include (but 169 not limited to) duplicated and/or missing characters when 170 low level console functions (such as gets) are used while 171 interrupts are enabled (for example geli password prompt, 172 mountroot prompt etc.). Disabling kbdmux(4) may help. 173 17420090407: 175 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 176 kernel modules referencing any of the above need to be recompiled. 177 Bump __FreeBSD_version to 800075. 178 17920090320: 180 GEOM_PART has become the default partition slicer for storage devices, 181 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 182 introduces some changes: 183 184 MSDOS/EBR: the devices created from MSDOS extended partition entries 185 (EBR) can be named differently than with GEOM_MBR and are now symlinks 186 to devices with offset-based names. fstabs may need to be modified. 187 188 BSD: the "geometry does not match label" warning is harmless in most 189 cases but it points to problems in file system misalignment with 190 disk geometry. The "c" partition is now implicit, covers the whole 191 top-level drive and cannot be (mis)used by users. 192 193 General: Kernel dumps are now not allowed to be written to devices 194 whose partition types indicate they are meant to be used for file 195 systems (or, in case of MSDOS partitions, as something else than 196 the "386BSD" type). 197 198 Most of these changes date approximately from 200812. 199 20020090319: 201 The uscanner(4) driver has been removed from the kernel. This follows 202 Linux removing theirs in 2.6 and making libusb the default interface 203 (supported by sane). 204 20520090319: 206 The multicast forwarding code has been cleaned up. netstat(1) 207 only relies on KVM now for printing bandwidth upcall meters. 208 The IPv4 and IPv6 modules are split into ip_mroute_mod and 209 ip6_mroute_mod respectively. The config(5) options for statically 210 compiling this code remain the same, i.e. 'options MROUTING'. 211 21220090315: 213 Support for the IFF_NEEDSGIANT network interface flag has been 214 removed, which means that non-MPSAFE network device drivers are no 215 longer supported. In particular, if_ar, if_sr, and network device 216 drivers from the old (legacy) USB stack can no longer be built or 217 used. 218 21920090313: 220 POSIX.1 Native Language Support (NLS) has been enabled in libc and 221 a bunch of new language catalog files have also been added. 222 This means that some common libc messages are now localized and 223 they depend on the LC_MESSAGES environmental variable. 224 22520090313: 226 The k8temp(4) driver has been renamed to amdtemp(4) since 227 support for K10 and K11 CPU families was added. 228 22920090309: 230 IGMPv3 and Source-Specific Multicast (SSM) have been merged 231 to the IPv4 stack. VIMAGE hooks are in but not yet used. 232 233 For kernel developers, the most important changes are that the 234 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 235 and this lock has been downgraded to a non-recursive mutex. 236 237 Transport protocols (UDP, Raw IP) are now responsible for filtering 238 inbound multicast traffic according to group membership and source 239 filters. The imo_multicast_filter() KPI exists for this purpose. 240 Transports which do not use multicast (SCTP, TCP) already reject 241 multicast by default. Forwarding and receive performance may improve 242 as a mutex acquisition is no longer needed in the ip_input() 243 low-level input path. in_addmulti() and in_delmulti() are shimmed 244 to new KPIs which exist to support SSM in-kernel. 245 246 For application developers, it is recommended that loopback of 247 multicast datagrams be disabled for best performance, as this 248 will still cause the lock to be taken for each looped-back 249 datagram transmission. The net.inet.ip.mcast.loop sysctl may 250 be tuned to 0 to disable loopback by default; it defaults to 1 251 to preserve the existing behaviour. 252 253 For systems administrators, to obtain best performance with 254 multicast reception and multiple groups, it is always recommended 255 that a card with a suitably precise hash filter is used. Hash 256 collisions will still result in the lock being taken within the 257 transport protocol input path to check group membership. 258 259 If deploying FreeBSD in an environment with IGMP snooping switches, 260 it is recommended that the net.inet.igmp.sendlocal sysctl remain 261 enabled; this forces 224.0.0.0/24 group membership to be announced 262 via IGMP. 263 264 The size of 'struct igmpstat' has changed; netstat needs to be 265 recompiled to reflect this. 266 Bump __FreeBSD_version to 800070. 267 26820090309: 269 libusb20.so.1 is now installed as libusb.so.1 and the ports system 270 updated to use it. This requires a buildworld/installworld in order to 271 update the library and dependencies (usbconfig, etc). Its advisable to 272 rebuild all ports which uses libusb. More specific directions are given 273 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 274 libusb are no longer required and can be removed. 275 27620090302: 277 A workaround is committed to allow the creation of System V shared 278 memory segment of size > 2 GB on the 64-bit architectures. 279 Due to a limitation of the existing ABI, the shm_segsz member 280 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 281 wrong for large segments. Note that limits must be explicitely 282 raised to allow such segments to be created. 283 28420090301: 285 The layout of struct ifnet has changed, requiring a rebuild of all 286 network device driver modules. 287 28820090227: 289 The /dev handling for the new USB stack has changed, a 290 buildworld/installworld is required for libusb20. 291 29220090223: 293 The new USB2 stack has now been permanently moved in and all kernel and 294 module names reverted to their previous values (eg, usb, ehci, ohci, 295 ums, ...). The old usb stack can be compiled in by prefixing the name 296 with the letter 'o', the old usb modules have been removed. 297 Updating entry 20090216 for xorg and 20090215 for libmap may still 298 apply. 299 30020090217: 301 The rc.conf(5) option if_up_delay has been renamed to 302 defaultroute_delay to better reflect its purpose. If you have 303 customized this setting in /etc/rc.conf you need to update it to 304 use the new name. 305 30620090216: 307 xorg 7.4 wants to configure its input devices via hald which does not 308 yet work with USB2. If the keyboard/mouse does not work in xorg then 309 add 310 Option "AllowEmptyInput" "off" 311 to your ServerLayout section. This will cause X to use the configured 312 kbd and mouse sections from your xorg.conf. 313 31420090215: 315 The GENERIC kernels for all architectures now default to the new USB2 316 stack. No kernel config options or code have been removed so if a 317 problem arises please report it and optionally revert to the old USB 318 stack. If you are loading USB kernel modules or have a custom kernel 319 that includes GENERIC then ensure that usb names are also changed over, 320 eg uftdi -> usb2_serial_ftdi. 321 322 Older programs linked against the ports libusb 0.1 need to be 323 redirected to the new stack's libusb20. /etc/libmap.conf can 324 be used for this: 325 # Map old usb library to new one for usb2 stack 326 libusb-0.1.so.8 libusb20.so.1 327 32820090203: 329 The ichsmb(4) driver has been changed to require SMBus slave 330 addresses be left-justified (xxxxxxx0b) rather than right-justified. 331 All of the other SMBus controller drivers require left-justified 332 slave addresses, so this change makes all the drivers provide the 333 same interface. 334 33520090201: 336 INET6 statistics (struct ip6stat) was updated. 337 netstat(1) needs to be recompiled. 338 33920090119: 340 NTFS has been removed from GENERIC kernel on amd64 to match 341 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 342 will load ntfs.ko module automatically when NTFS support is 343 actually needed, unless ntfs.ko is not installed or security 344 level prohibits loading kernel modules. If either is the case, 345 "options NTFS" has to be added into kernel config. 346 34720090115: 348 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 349 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 350 800061. User space tools that rely on the size of struct tcpcb in 351 tcp_var.h (e.g. sockstat) need to be recompiled. 352 35320081225: 354 ng_tty(4) module updated to match the new TTY subsystem. 355 Due to API change, user-level applications must be updated. 356 New API support added to mpd5 CVS and expected to be present 357 in next mpd5.3 release. 358 35920081219: 360 With __FreeBSD_version 800060 the makefs tool is part of 361 the base system (it was a port). 362 36320081216: 364 The afdata and ifnet locks have been changed from mutexes to 365 rwlocks, network modules will need to be re-compiled. 366 36720081214: 368 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 369 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 370 The new code reduced struct rtentry{} by 16 bytes on 32-bit 371 architecture and 40 bytes on 64-bit architecture. The userland 372 applications "arp" and "ndp" have been updated accordingly. 373 The output from "netstat -r" shows only routing entries and 374 none of the L2 information. 375 37620081130: 377 __FreeBSD_version 800057 marks the switchover from the 378 binary ath hal to source code. Users must add the line: 379 380 options AH_SUPPORT_AR5416 381 382 to their kernel config files when specifying: 383 384 device ath_hal 385 386 The ath_hal module no longer exists; the code is now compiled 387 together with the driver in the ath module. It is now 388 possible to tailor chip support (i.e. reduce the set of chips 389 and thereby the code size); consult ath_hal(4) for details. 390 39120081121: 392 __FreeBSD_version 800054 adds memory barriers to 393 <machine/atomic.h>, new interfaces to ifnet to facilitate 394 multiple hardware transmit queues for cards that support 395 them, and a lock-less ring-buffer implementation to 396 enable drivers to more efficiently manage queueing of 397 packets. 398 39920081117: 400 A new version of ZFS (version 13) has been merged to -HEAD. 401 This version has zpool attribute "listsnapshots" off by 402 default, which means "zfs list" does not show snapshots, 403 and is the same as Solaris behavior. 404 40520081028: 406 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 407 40820081009: 409 The uhci, ohci, ehci and slhci USB Host controller drivers have 410 been put into separate modules. If you load the usb module 411 separately through loader.conf you will need to load the 412 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 413 controller add the following to loader.conf: 414 415 uhci_load="YES" 416 ehci_load="YES" 417 41820081009: 419 The ABI used by the PMC toolset has changed. Please keep 420 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 421 sync. 422 42320080820: 424 The TTY subsystem of the kernel has been replaced by a new 425 implementation, which provides better scalability and an 426 improved driver model. Most common drivers have been migrated to 427 the new TTY subsystem, while others have not. The following 428 drivers have not yet been ported to the new TTY layer: 429 430 PCI/ISA: 431 cy, digi, rc, rp, sio 432 433 USB: 434 ubser, ucycom 435 436 Line disciplines: 437 ng_h4, ng_tty, ppp, sl, snp 438 439 Adding these drivers to your kernel configuration file shall 440 cause compilation to fail. 441 44220080818: 443 ntpd has been upgraded to 4.2.4p5. 444 44520080801: 446 OpenSSH has been upgraded to 5.1p1. 447 448 For many years, FreeBSD's version of OpenSSH preferred DSA 449 over RSA for host and user authentication keys. With this 450 upgrade, we've switched to the vendor's default of RSA over 451 DSA. This may cause upgraded clients to warn about unknown 452 host keys even for previously known hosts. Users should 453 follow the usual procedure for verifying host keys before 454 accepting the RSA key. 455 456 This can be circumvented by setting the "HostKeyAlgorithms" 457 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 458 command line. 459 460 Please note that the sequence of keys offered for 461 authentication has been changed as well. You may want to 462 specify IdentityFile in a different order to revert this 463 behavior. 464 46520080713: 466 The sio(4) driver has been removed from the i386 and amd64 467 kernel configuration files. This means uart(4) is now the 468 default serial port driver on those platforms as well. 469 470 To prevent collisions with the sio(4) driver, the uart(4) driver 471 uses different names for its device nodes. This means the 472 onboard serial port will now most likely be called "ttyu0" 473 instead of "ttyd0". You may need to reconfigure applications to 474 use the new device names. 475 476 When using the serial port as a boot console, be sure to update 477 /boot/device.hints and /etc/ttys before booting the new kernel. 478 If you forget to do so, you can still manually specify the hints 479 at the loader prompt: 480 481 set hint.uart.0.at="isa" 482 set hint.uart.0.port="0x3F8" 483 set hint.uart.0.flags="0x10" 484 set hint.uart.0.irq="4" 485 boot -s 486 48720080609: 488 The gpt(8) utility has been removed. Use gpart(8) to partition 489 disks instead. 490 49120080603: 492 The version that Linuxulator emulates was changed from 2.4.2 493 to 2.6.16. If you experience any problems with Linux binaries 494 please try to set sysctl compat.linux.osrelease to 2.4.2 and 495 if it fixes the problem contact emulation mailing list. 496 49720080525: 498 ISDN4BSD (I4B) was removed from the src tree. You may need to 499 update a your kernel configuration and remove relevant entries. 500 50120080509: 502 I have checked in code to support multiple routing tables. 503 See the man pages setfib(1) and setfib(2). 504 This is a hopefully backwards compatible version, 505 but to make use of it you need to compile your kernel 506 with options ROUTETABLES=2 (or more up to 16). 507 50820080420: 509 The 802.11 wireless support was redone to enable multi-bss 510 operation on devices that are capable. The underlying device 511 is no longer used directly but instead wlanX devices are 512 cloned with ifconfig. This requires changes to rc.conf files. 513 For example, change: 514 ifconfig_ath0="WPA DHCP" 515 to 516 wlans_ath0=wlan0 517 ifconfig_wlan0="WPA DHCP" 518 see rc.conf(5) for more details. In addition, mergemaster of 519 /etc/rc.d is highly recommended. Simultaneous update of userland 520 and kernel wouldn't hurt either. 521 522 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 523 modules were merged into the base wlan module. All references 524 to these modules (e.g. in kernel config files) must be removed. 525 52620080408: 527 psm(4) has gained write(2) support in native operation level. 528 Arbitrary commands can be written to /dev/psm%d and status can 529 be read back from it. Therefore, an application is responsible 530 for status validation and error recovery. It is a no-op in 531 other operation levels. 532 53320080312: 534 Support for KSE threading has been removed from the kernel. To 535 run legacy applications linked against KSE libmap.conf may 536 be used. The following libmap.conf may be used to ensure 537 compatibility with any prior release: 538 539 libpthread.so.1 libthr.so.1 540 libpthread.so.2 libthr.so.2 541 libkse.so.3 libthr.so.3 542 54320080301: 544 The layout of struct vmspace has changed. This affects libkvm 545 and any executables that link against libkvm and use the 546 kvm_getprocs() function. In particular, but not exclusively, 547 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 548 The effects are minimal, but it's advisable to upgrade world 549 nonetheless. 550 55120080229: 552 The latest em driver no longer has support in it for the 553 82575 adapter, this is now moved to the igb driver. The 554 split was done to make new features that are incompatible 555 with older hardware easier to do. 556 55720080220: 558 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 559 likewise the kernel option is now GEOM_LINUX_LVM. 560 56120080211: 562 The default NFS mount mode has changed from UDP to TCP for 563 increased reliability. If you rely on (insecurely) NFS 564 mounting across a firewall you may need to update your 565 firewall rules. 566 56720080208: 568 Belatedly note the addition of m_collapse for compacting 569 mbuf chains. 570 57120080126: 572 The fts(3) structures have been changed to use adequate 573 integer types for their members and so to be able to cope 574 with huge file trees. The old fts(3) ABI is preserved 575 through symbol versioning in libc, so third-party binaries 576 using fts(3) should still work, although they will not take 577 advantage of the extended types. At the same time, some 578 third-party software might fail to build after this change 579 due to unportable assumptions made in its source code about 580 fts(3) structure members. Such software should be fixed 581 by its vendor or, in the worst case, in the ports tree. 582 FreeBSD_version 800015 marks this change for the unlikely 583 case that a portable fix is impossible. 584 58520080123: 586 To upgrade to -current after this date, you must be running 587 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 588 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 589 59020071128: 591 The ADAPTIVE_GIANT kernel option has been retired because its 592 functionality is the default now. 593 59420071118: 595 The AT keyboard emulation of sunkbd(4) has been turned on 596 by default. In order to make the special symbols of the Sun 597 keyboards driven by sunkbd(4) work under X these now have 598 to be configured the same way as Sun USB keyboards driven 599 by ukbd(4) (which also does AT keyboard emulation), f.e.: 600 601 Option "XkbLayout" "us" 602 Option "XkbRules" "xorg" 603 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 604 60520071024: 606 It has been decided that it is desirable to provide ABI 607 backwards compatibility to the FreeBSD 4/5/6 versions of the 608 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 609 broken with the introduction of PCI domain support (see the 610 20070930 entry). Unfortunately, this required the ABI of 611 PCIOCGETCONF to be broken again in order to be able to 612 provide backwards compatibility to the old version of that 613 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 614 again. As for prominent ports this affects neither pciutils 615 nor xorg-server this time, the hal port needs to be rebuilt 616 however. 617 61820071020: 619 The misnamed kthread_create() and friends have been renamed 620 to kproc_create() etc. Many of the callers already 621 used kproc_start().. 622 I will return kthread_create() and friends in a while 623 with implementations that actually create threads, not procs. 624 Renaming corresponds with version 800002. 625 62620071010: 627 RELENG_7 branched. 628 62920071009: 630 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 631 WITHOUT_LIBTHR are set. 632 63320070930: 634 The PCI code has been made aware of PCI domains. This means that 635 the location strings as used by pciconf(8) etc are now in the 636 following format: pci<domain>:<bus>:<device>[:<function>]. It 637 also means that consumers of <sys/pciio.h> potentially need to 638 be recompiled; this includes the hal and xorg-server ports. 639 64020070928: 641 The caching daemon (cached) was renamed to nscd. nscd.conf 642 configuration file should be used instead of cached.conf and 643 nscd_enable, nscd_pidfile and nscd_flags options should be used 644 instead of cached_enable, cached_pidfile and cached_flags in 645 rc.conf. 646 64720070921: 648 The getfacl(1) utility now prints owning user and group name 649 instead of owning uid and gid in the three line comment header. 650 This is the same behavior as getfacl(1) on Solaris and Linux. 651 65220070704: 653 The new IPsec code is now compiled in using the IPSEC option. The 654 IPSEC option now requires "device crypto" be defined in your kernel 655 configuration. The FAST_IPSEC kernel option is now deprecated. 656 65720070702: 658 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 659 note the changed syntax - keep state is now on by default. Also 660 note the fact that ftp-proxy(8) has been changed from bottom up and 661 has been moved from libexec to usr/sbin. Changes in the ALTQ 662 handling also affect users of IPFW's ALTQ capabilities. 663 66420070701: 665 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 666 only IPsec supported by FreeBSD. The new IPsec stack 667 supports both IPv4 and IPv6. The kernel option will change 668 after the code changes have settled in. For now the kernel 669 option IPSEC is deprecated and FAST_IPSEC is the only option, that 670 will change after some settling time. 671 67220070701: 673 The wicontrol(8) utility has been removed from the base system. wi(4) 674 cards should be configured using ifconfig(8), see the man page for more 675 information. 676 67720070612: 678 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 679 instead of the nve(4) driver. Please update your configuration 680 accordingly. 681 68220070612: 683 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 684 database if it is missing or older than the aliases file. If 685 desired, set the new rc.conf option sendmail_rebuild_aliases 686 to "YES" to restore that functionality. 687 68820070612: 689 The IPv4 multicast socket code has been considerably modified, and 690 moved to the file sys/netinet/in_mcast.c. Initial support for the 691 RFC 3678 Source-Specific Multicast Socket API has been added to 692 the IPv4 network stack. 693 694 Strict multicast and broadcast reception is now the default for 695 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 696 has now been removed. 697 698 The RFC 1724 hack for interface selection has been removed; the use 699 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 700 been added to replace it. Consumers such as routed will soon be 701 updated to reflect this. 702 703 These changes affect users who are running routed(8) or rdisc(8) 704 from the FreeBSD base system on point-to-point or unnumbered 705 interfaces. 706 70720070610: 708 The net80211 layer has changed significantly and all wireless 709 drivers that depend on it need to be recompiled. Further these 710 changes require that any program that interacts with the wireless 711 support in the kernel be recompiled; this includes: ifconfig, 712 wpa_supplicant, hostapd, and wlanstats. Users must also, for 713 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 714 if they use modules for wireless support. These modules implement 715 scanning support for station and ap modes, respectively. Failure 716 to load the appropriate module before marking a wireless interface 717 up will result in a message to the console and the device not 718 operating properly. 719 72020070610: 721 The pam_nologin(8) module ceases to provide an authentication 722 function and starts providing an account management function. 723 Consequent changes to /etc/pam.d should be brought in using 724 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 725 need manual editing as follows. Locate this line (or similar): 726 727 auth required pam_nologin.so no_warn 728 729 and change it according to this example: 730 731 account required pam_nologin.so no_warn 732 733 That is, the first word needs to be changed from "auth" to 734 "account". The new line can be moved to the account section 735 within the file for clarity. Not updating pam.conf(5) files 736 will result in nologin(5) ignored by the respective services. 737 73820070529: 739 The ether_ioctl() function has been synchronized with ioctl(2) 740 and ifnet.if_ioctl. Due to that, the size of one of its arguments 741 has changed on 64-bit architectures. All kernel modules using 742 ether_ioctl() need to be rebuilt on such architectures. 743 74420070516: 745 Improved INCLUDE_CONFIG_FILE support has been introduced to the 746 config(8) utility. In order to take advantage of this new 747 functionality, you are expected to recompile and install 748 src/usr.sbin/config. If you don't rebuild config(8), and your 749 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 750 build will be broken because of a missing "kernconfstring" 751 symbol. 752 75320070513: 754 Symbol versioning is enabled by default. To disable it, use 755 option WITHOUT_SYMVER. It is not advisable to attempt to 756 disable symbol versioning once it is enabled; your installworld 757 will break because a symbol version-less libc will get installed 758 before the install tools. As a result, the old install tools, 759 which previously had symbol dependencies to FBSD_1.0, will fail 760 because the freshly installed libc will not have them. 761 762 The default threading library (providing "libpthread") has been 763 changed to libthr. If you wish to have libkse as your default, 764 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 765 76620070423: 767 The ABI breakage in sendmail(8)'s libmilter has been repaired 768 so it is no longer necessary to recompile mail filters (aka, 769 milters). If you recompiled mail filters after the 20070408 770 note, it is not necessary to recompile them again. 771 77220070417: 773 The new trunk(4) driver has been renamed to lagg(4) as it better 774 reflects its purpose. ifconfig will need to be recompiled. 775 77620070408: 777 sendmail(8) has been updated to version 8.14.1. Mail filters 778 (aka, milters) compiled against the libmilter included in the 779 base operating system should be recompiled. 780 78120070302: 782 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 783 In order to use them one must agree to the respective LICENSE in 784 share/doc/legal and define legal.intel_<name>.license_ack=1 via 785 loader.conf(5) or kenv(1). Make sure to deinstall the now 786 deprecated modules from the respective firmware ports. 787 78820070228: 789 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 790 were removed from FreeBSD's libc. These originally came from INRIA 791 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 792 deprecated in previous releases. 793 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 794 replace it as a more portable (and re-entrant) API. 795 79620070224: 797 To support interrupt filtering a modification to the newbus API 798 has occurred, ABI was broken and __FreeBSD_version was bumped 799 to 700031. Please make sure that your kernel and modules are in 800 sync. For more info: 801 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 802 80320070224: 804 The IPv6 multicast forwarding code may now be loaded into GENERIC 805 kernels by loading the ip_mroute.ko module. This is built into the 806 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 807 set; see src.conf(5) for more information. 808 80920070214: 810 The output of netstat -r has changed. Without -n, we now only 811 print a "network name" without the prefix length if the network 812 address and mask exactly match a Class A/B/C network, and an entry 813 exists in the nsswitch "networks" map. 814 With -n, we print the full unabbreviated CIDR network prefix in 815 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 816 This change is in preparation for changes such as equal-cost 817 multipath, and to more generally assist operational deployment 818 of FreeBSD as a modern IPv4 router. 819 82020070210: 821 PIM has been turned on by default in the IPv4 multicast 822 routing code. The kernel option 'PIM' has now been removed. 823 PIM is now built by default if option 'MROUTING' is specified. 824 It may now be loaded into GENERIC kernels by loading the 825 ip_mroute.ko module. 826 82720070207: 828 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 829 has been removed. Its functionality may be achieved by explicitly 830 configuring gif(4) interfaces and using the 'phyint' keyword in 831 mrouted.conf. 832 XORP does not support source-routed IPv4 multicast tunnels nor the 833 integrated IPIP tunneling, therefore it is not affected by this 834 change. The __FreeBSD_version macro has been bumped to 700030. 835 83620061221: 837 Support for PCI Message Signalled Interrupts has been 838 re-enabled in the bge driver, only for those chips which are 839 believed to support it properly. If there are any problems, 840 MSI can be disabled completely by setting the 841 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 842 in the loader. 843 84420061214: 845 Support for PCI Message Signalled Interrupts has been 846 disabled again in the bge driver. Many revisions of the 847 hardware fail to support it properly. Support can be 848 re-enabled by removing the #define of BGE_DISABLE_MSI in 849 "src/sys/dev/bge/if_bge.c". 850 85120061214: 852 Support for PCI Message Signalled Interrupts has been added 853 to the bge driver. If there are any problems, MSI can be 854 disabled completely by setting the 'hw.pci.enable_msi' and 855 'hw.pci.enable_msix' tunables to 0 in the loader. 856 85720061205: 858 The removal of several facets of the experimental Threading 859 system from the kernel means that the proc and thread structures 860 have changed quite a bit. I suggest all kernel modules that might 861 reference these structures be recompiled.. Especially the 862 linux module. 863 86420061126: 865 Sound infrastructure has been updated with various fixes and 866 improvements. Most of the changes are pretty much transparent, 867 with exceptions of followings: 868 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 869 moved to their own dev sysctl nodes, for example: 870 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 871 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 872 own chardev in the form of "dsp%d.<function>%d", where <function> 873 is p = playback, r = record and v = virtual, respectively. Users 874 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 875 This does not affect those who are using "/dev/dsp". 876 87720061122: 878 geom(4)'s gmirror(8) class metadata structure has been 879 rev'd from v3 to v4. If you update across this point and 880 your metadata is converted for you, you will not be easily 881 able to downgrade since the /boot/kernel.old/geom_mirror.ko 882 kernel module will be unable to read the v4 metadata. You 883 can resolve this by doing from the loader(8) prompt: 884 885 set vfs.root.mountfrom="ufs:/dev/XXX" 886 887 where XXX is the root slice of one of the disks that composed 888 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 889 the array the same way you built it originally. 890 89120061122: 892 The following binaries have been disconnected from the build: 893 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 894 and mount_std. The functionality of these programs has been 895 moved into the mount program. For example, to mount a devfs 896 filesystem, instead of using mount_devfs, use: "mount -t devfs". 897 This does not affect entries in /etc/fstab, since entries in 898 /etc/fstab are always processed with "mount -t fstype". 899 90020061113: 901 Support for PCI Message Signalled Interrupts on i386 and amd64 902 has been added to the kernel and various drivers will soon be 903 updated to use MSI when it is available. If there are any problems, 904 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 905 and 'hw.pci.enable_msix' tunables to 0 in the loader. 906 90720061110: 908 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 909 The lockmgr object layout has been changed as a result of having 910 a lock_object embedded in it. As a consequence all file system 911 kernel modules must be re-compiled. The mutex profiling man page 912 has not yet been updated to reflect this change. 913 91420061026: 915 KSE in the kernel has now been made optional and turned on by 916 default. Use 'nooption KSE' in your kernel config to turn it 917 off. All kernel modules *must* be recompiled after this change. 918 There-after, modules from a KSE kernel should be compatible with 919 modules from a NOKSE kernel due to the temporary padding fields 920 added to 'struct proc'. 921 92220060929: 923 mrouted and its utilities have been removed from the base system. 924 92520060927: 926 Some ioctl(2) command codes have changed. Full backward ABI 927 compatibility is provided if the "options COMPAT_FREEBSD6" is 928 present in the kernel configuration file. Make sure to add 929 this option to your kernel config file, or recompile X.Org 930 and the rest of ports; otherwise they may refuse to work. 931 93220060924: 933 tcpslice has been removed from the base system. 934 93520060913: 936 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 937 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 938 systat needs to be rebuilt. 939 94020060903: 941 libpcap updated to v0.9.4 and tcpdump to v3.9.4 942 94320060816: 944 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 945 for IPFIREWALL_FORWARD is now as it was before when it was first 946 committed and for years after. The behaviour is now ON. 947 94820060725: 949 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 950 Now it can decrypt files created from different architectures. 951 Unfortunately, it is no longer able to decrypt a cipher text 952 generated with an older version on 64 bit architectures. 953 If you have such a file, you need old utility to decrypt it. 954 95520060709: 956 The interface version of the i4b kernel part has changed. So 957 after updating the kernel sources and compiling a new kernel, 958 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 959 be rebuilt, and vice versa. 960 96120060627: 962 The XBOX kernel now defaults to the nfe(4) driver instead of 963 the nve(4) driver. Please update your configuration 964 accordingly. 965 96620060514: 967 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 968 PCnet family of NICs has been removed. The new le(4) driver serves 969 as an equivalent but cross-platform replacement with the pcn(4) 970 driver still providing performance-optimized support for the subset 971 of AMD Am79C971 PCnet-FAST and greater chips as before. 972 97320060511: 974 The machdep.* sysctls and the adjkerntz utility have been 975 modified a bit. The new adjkerntz utility uses the new 976 sysctl names and sysctlbyname() calls, so it may be impossible 977 to run an old /sbin/adjkerntz utility in single-user mode 978 with a new kernel. Replace the `adjkerntz -i' step before 979 `make installworld' with: 980 981 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 982 983 and proceed as usual with the rest of the installworld-stage 984 steps. Otherwise, you risk installing binaries with their 985 timestamp set several hours in the future, especially if 986 you are running with local time set to GMT+X hours. 987 98820060412: 989 The ip6fw utility has been removed. The behavior provided by 990 ip6fw has been in ipfw2 for a good while and the rc.d scripts 991 have been updated to deal with it. There are some rules that 992 might not migrate cleanly. Use rc.firewall6 as a template to 993 rewrite rules. 994 99520060428: 996 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 997 attachments have been removed. Make sure to configure scc(4) 998 on sparc64. Note also that by default puc(4) will use uart(4) 999 and not sio(4) for serial ports because interrupt handling has 1000 been optimized for multi-port serial cards and only uart(4) 1001 implements the interface to support it. 1002 100320060330: 1004 The scc(4) driver replaces puc(4) for Serial Communications 1005 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1006 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1007 configuration to make sure that the serial ports remain 1008 functional. 1009 101020060317: 1011 Most world/kernel related NO_* build options changed names. 1012 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1013 after FreeBSD ports) and should be set in /etc/src.conf 1014 (the src.conf(5) manpage is provided). Full backwards 1015 compatibility is maintained for the time being though it's 1016 highly recommended to start moving old options out of the 1017 system-wide /etc/make.conf file into the new /etc/src.conf 1018 while also properly renaming them. More conversions will 1019 likely follow. Posting to current@: 1020 1021 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1022 102320060305: 1024 The NETSMBCRYPTO kernel option has been retired because its 1025 functionality is always included in NETSMB and smbfs.ko now. 1026 102720060303: 1028 The TDFX_LINUX kernel option was retired and replaced by the 1029 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1030 kernel module. Loading it alone should suffice to get 3dfx support 1031 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1032 its dependencies. 1033 103420060204: 1035 The 'audit' group was added to support the new auditing functionality 1036 in the base system. Be sure to follow the directions for updating, 1037 including the requirement to run mergemaster -p. 1038 103920060201: 1040 The kernel ABI to file system modules was changed on i386. 1041 Please make sure that your kernel and modules are in sync. 1042 104320060118: 1044 This actually occured some time ago, but installing the kernel 1045 now also installs a bunch of symbol files for the kernel modules. 1046 This increases the size of /boot/kernel to about 67Mbytes. You 1047 will need twice this if you will eventually back this up to kernel.old 1048 on your next install. 1049 If you have a shortage of room in your root partition, you should add 1050 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1051 to your /etc/make.conf. 1052 105320060113: 1054 libc's malloc implementation has been replaced. This change has the 1055 potential to uncover application bugs that previously went unnoticed. 1056 See the malloc(3) manual page for more details. 1057 105820060112: 1059 The generic netgraph(4) cookie has been changed. If you upgrade 1060 kernel passing this point, you also need to upgrade userland 1061 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1062 106320060106: 1064 si(4)'s device files now contain the unit number. 1065 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1066 106720060106: 1068 The kernel ABI was mostly destroyed due to a change in the size 1069 of struct lock_object which is nested in other structures such 1070 as mutexes which are nested in all sorts of other structures. 1071 Make sure your kernel and modules are in sync. 1072 107320051231: 1074 The page coloring algorithm in the VM subsystem was converted 1075 from tuning with kernel options to autotuning. Please remove 1076 any PQ_* option except PQ_NOOPT from your kernel config. 1077 107820051211: 1079 The net80211-related tools in the tools/tools/ath directory 1080 have been moved to tools/tools/net80211 and renamed with a 1081 "wlan" prefix. Scripts that use them should be adjusted 1082 accordingly. 1083 108420051202: 1085 Scripts in the local_startup directories (as defined in 1086 /etc/defaults/rc.conf) that have the new rc.d semantics will 1087 now be run as part of the base system rcorder. If there are 1088 errors or problems with one of these local scripts, it could 1089 cause boot problems. If you encounter such problems, boot in 1090 single user mode, remove that script from the */rc.d directory. 1091 Please report the problem to the port's maintainer, and the 1092 freebsd-ports@freebsd.org mailing list. 1093 109420051129: 1095 The nodev mount option was deprecated in RELENG_6 (where it 1096 was a no-op), and is now unsupported. If you have nodev or dev listed 1097 in /etc/fstab, remove it, otherwise it will result in a mount error. 1098 109920051129: 1100 ABI between ipfw(4) and ipfw(8) has been changed. You need 1101 to rebuild ipfw(8) when rebuilding kernel. 1102 110320051108: 1104 rp(4)'s device files now contain the unit number. 1105 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1106 110720051029: 1108 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1109 Its /etc/rc.conf.d configuration file has been `ppp' from 1110 the beginning, and hence there is no need to touch it. 1111 111220051014: 1113 Now most modules get their build-time options from the kernel 1114 configuration file. A few modules still have fixed options 1115 due to their non-conformant implementation, but they will be 1116 corrected eventually. You may need to review the options of 1117 the modules in use, explicitly specify the non-default options 1118 in the kernel configuration file, and rebuild the kernel and 1119 modules afterwards. 1120 112120051001: 1122 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1123 to turn polling(4) on your interfaces. 1124 112520050927: 1126 The old bridge(4) implementation was retired. The new 1127 if_bridge(4) serves as a full functional replacement. 1128 112920050722: 1130 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1131 to conform to POSIX-2001. This change broke an ABI 1132 compatibility on 64 bit architecture. You have to recompile 1133 userland programs that use getaddrinfo(3) on 64 bit 1134 architecture. 1135 113620050711: 1137 RELENG_6 branched here. 1138 113920050629: 1140 The pccard_ifconfig rc.conf variable has been removed and a new 1141 variable, ifconfig_DEFAULT has been introduced. Unlike 1142 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1143 do not have ifconfig_ifn entries rather than just those in 1144 removable_interfaces. 1145 114620050616: 1147 Some previous versions of PAM have permitted the use of 1148 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1149 to third party PAM modules in /usr/local/lib. A change has been 1150 made to require the use of absolute paths in order to avoid 1151 ambiguity and dependence on library path configuration, which may 1152 affect existing configurations. 1153 115420050610: 1155 Major changes to network interface API. All drivers must be 1156 recompiled. Drivers not in the base system will need to be 1157 updated to the new APIs. 1158 115920050609: 1160 Changes were made to kinfo_proc in sys/user.h. Please recompile 1161 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1162 will not behave correctly. 1163 1164 The API and ABI for hwpmc(4) have changed with the addition 1165 of sampling support. Please recompile lib/libpmc(3) and 1166 usr.sbin/{pmcstat,pmccontrol}. 1167 116820050606: 1169 The OpenBSD dhclient was imported in place of the ISC dhclient 1170 and the network interface configuration scripts were updated 1171 accordingly. If you use DHCP to configure your interfaces, you 1172 must now run devd. Also, DNS updating was lost so you will need 1173 to find a workaround if you use this feature. 1174 1175 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1176 sure to run mergemaster -p (like you are supposed to do every time 1177 anyway). 1178 117920050605: 1180 if_bridge was added to the tree. This has changed struct ifnet. 1181 Please recompile userland and all network related modules. 1182 118320050603: 1184 The n_net of a struct netent was changed to an uint32_t, and 1185 1st argument of getnetbyaddr() was changed to an uint32_t, to 1186 conform to POSIX-2001. These changes broke an ABI 1187 compatibility on 64 bit architecture. With these changes, 1188 shlib major of libpcap was bumped. You have to recompile 1189 userland programs that use getnetbyaddr(3), getnetbyname(3), 1190 getnetent(3) and/or libpcap on 64 bit architecture. 1191 119220050528: 1193 Kernel parsing of extra options on '#!' first lines of shell 1194 scripts has changed. Lines with multiple options likely will 1195 fail after this date. For full details, please see 1196 http://people.freebsd.org/~gad/Updating-20050528.txt 1197 119820050503: 1199 The packet filter (pf) code has been updated to OpenBSD 3.7 1200 Please note the changed anchor syntax and the fact that 1201 authpf(8) now needs a mounted fdescfs(5) to function. 1202 120320050415: 1204 The NO_MIXED_MODE kernel option has been removed from the i386 1205 amd64 platforms as its use has been superceded by the new local 1206 APIC timer code. Any kernel config files containing this option 1207 should be updated. 1208 120920050227: 1210 The on-disk format of LC_CTYPE files was changed to be machine 1211 independent. Please make sure NOT to use NO_CLEAN buildworld 1212 when crossing this point. Crossing this point also requires 1213 recompile or reinstall of all locale depended packages. 1214 121520050225: 1216 The ifi_epoch member of struct if_data has been changed to 1217 contain the uptime at which the interface was created or the 1218 statistics zeroed rather then the wall clock time because 1219 wallclock time may go backwards. This should have no impact 1220 unless an snmp implementation is using this value (I know of 1221 none at this point.) 1222 122320050224: 1224 The acpi_perf and acpi_throttle drivers are now part of the 1225 acpi(4) main module. They are no longer built separately. 1226 122720050223: 1228 The layout of struct image_params has changed. You have to 1229 recompile all compatibility modules (linux, svr4, etc) for use 1230 with the new kernel. 1231 123220050223: 1233 The p4tcc driver has been merged into cpufreq(4). This makes 1234 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1235 compile in "device cpufreq" to restore this functionality. 1236 123720050220: 1238 The responsibility of recomputing the file system summary of 1239 a SoftUpdates-enabled dirty volume has been transferred to the 1240 background fsck. A rebuild of fsck(8) utility is recommended 1241 if you have updated the kernel. 1242 1243 To get the old behavior (recompute file system summary at mount 1244 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1245 mounting the new volume. 1246 124720050206: 1248 The cpufreq import is complete. As part of this, the sysctls for 1249 acpi(4) throttling have been removed. The power_profile script 1250 has been updated, so you can use performance/economy_cpu_freq in 1251 rc.conf(5) to set AC on/offline cpu frequencies. 1252 125320050206: 1254 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1255 requires recompiling libnetgraph and userland netgraph utilities. 1256 125720050114: 1258 Support for abbreviated forms of a number of ipfw options is 1259 now deprecated. Warnings are printed to stderr indicating the 1260 correct full form when a match occurs. Some abbreviations may 1261 be supported at a later date based on user feedback. To be 1262 considered for support, abbreviations must be in use prior to 1263 this commit and unlikely to be confused with current key words. 1264 126520041221: 1266 By a popular demand, a lot of NOFOO options were renamed 1267 to NO_FOO (see bsd.compat.mk for a full list). The old 1268 spellings are still supported, but will cause annoying 1269 warnings on stderr. Make sure you upgrade properly (see 1270 the COMMON ITEMS: section later in this file). 1271 127220041219: 1273 Auto-loading of ancillary wlan modules such as wlan_wep has 1274 been temporarily disabled; you need to statically configure 1275 the modules you need into your kernel or explicitly load them 1276 prior to use. Specifically, if you intend to use WEP encryption 1277 with an 802.11 device load/configure wlan_wep; if you want to 1278 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1279 and wlan_xauth as required. 1280 128120041213: 1282 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1283 (``enable lqr''), older versions would revert to LCP ECHO mode on 1284 negotiation failure. Now, ``enable echo'' is required for this 1285 behaviour. The ppp version number has been bumped to 3.4.2 to 1286 reflect the change. 1287 128820041201: 1289 The wlan support has been updated to split the crypto support 1290 into separate modules. For static WEP you must configure the 1291 wlan_wep module in your system or build and install the module 1292 in place where it can be loaded (the kernel will auto-load 1293 the module when a wep key is configured). 1294 129520041201: 1296 The ath driver has been updated to split the tx rate control 1297 algorithm into a separate module. You need to include either 1298 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1299 130020041116: 1301 Support for systems with an 80386 CPU has been removed. Please 1302 use FreeBSD 5.x or earlier on systems with an 80386. 1303 130420041110: 1305 We have had a hack which would mount the root filesystem 1306 R/W if the device were named 'md*'. As part of the vnode 1307 work I'm doing I have had to remove this hack. People 1308 building systems which use preloaded MD root filesystems 1309 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1310 their /etc/rc scripts. 1311 131220041104: 1313 FreeBSD 5.3 shipped here. 1314 131520041102: 1316 The size of struct tcpcb has changed again due to the removal 1317 of RFC1644 T/TCP. You have to recompile userland programs that 1318 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1319 132020041022: 1321 The size of struct tcpcb has changed. You have to recompile 1322 userland programs that read kmem for tcp sockets directly 1323 (netstat, sockstat, etc.) 1324 132520041016: 1326 RELENG_5 branched here. For older entries, please see updating 1327 in the RELENG_5 branch. 1328 1329COMMON ITEMS: 1330 1331 General Notes 1332 ------------- 1333 Avoid using make -j when upgrading. From time to time in the 1334 past there have been problems using -j with buildworld and/or 1335 installworld. This is especially true when upgrading between 1336 "distant" versions (eg one that cross a major release boundary 1337 or several minor releases, or when several months have passed 1338 on the -current branch). 1339 1340 Sometimes, obscure build problems are the result of environment 1341 poisoning. This can happen because the make utility reads its 1342 environment when searching for values for global variables. 1343 To run your build attempts in an "environmental clean room", 1344 prefix all make commands with 'env -i '. See the env(1) manual 1345 page for more details. 1346 1347 When upgrading from one major version to another it is generally 1348 best to upgrade to the latest code in the currently installed branch 1349 first, then do an upgrade to the new branch. This is the best-tested 1350 upgrade path, and has the highest probability of being successful. 1351 Please try this approach before reporting problems with a major 1352 version upgrade. 1353 1354 To build a kernel 1355 ----------------- 1356 If you are updating from a prior version of FreeBSD (even one just 1357 a few days old), you should follow this procedure. It is the most 1358 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1359 1360 make kernel-toolchain 1361 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1362 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1363 1364 To test a kernel once 1365 --------------------- 1366 If you just want to boot a kernel once (because you are not sure 1367 if it works, or if you want to boot a known bad kernel to provide 1368 debugging information) run 1369 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1370 nextboot -k testkernel 1371 1372 To just build a kernel when you know that it won't mess you up 1373 -------------------------------------------------------------- 1374 This assumes you are already running a 5.X system. Replace 1375 ${arch} with the architecture of your machine (e.g. "i386", 1376 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1377 1378 cd src/sys/${arch}/conf 1379 config KERNEL_NAME_HERE 1380 cd ../compile/KERNEL_NAME_HERE 1381 make depend 1382 make 1383 make install 1384 1385 If this fails, go to the "To build a kernel" section. 1386 1387 To rebuild everything and install it on the current system. 1388 ----------------------------------------------------------- 1389 # Note: sometimes if you are running current you gotta do more than 1390 # is listed here if you are upgrading from a really old current. 1391 1392 <make sure you have good level 0 dumps> 1393 make buildworld 1394 make kernel KERNCONF=YOUR_KERNEL_HERE 1395 [1] 1396 <reboot in single user> [3] 1397 mergemaster -p [5] 1398 make installworld 1399 make delete-old 1400 mergemaster [4] 1401 <reboot> 1402 1403 1404 To cross-install current onto a separate partition 1405 -------------------------------------------------- 1406 # In this approach we use a separate partition to hold 1407 # current's root, 'usr', and 'var' directories. A partition 1408 # holding "/", "/usr" and "/var" should be about 2GB in 1409 # size. 1410 1411 <make sure you have good level 0 dumps> 1412 <boot into -stable> 1413 make buildworld 1414 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1415 <maybe newfs current's root partition> 1416 <mount current's root partition on directory ${CURRENT_ROOT}> 1417 make installworld DESTDIR=${CURRENT_ROOT} 1418 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1419 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1420 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1421 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1422 <reboot into current> 1423 <do a "native" rebuild/install as described in the previous section> 1424 <maybe install compatibility libraries from ports/misc/compat*> 1425 <reboot> 1426 1427 1428 To upgrade in-place from 5.x-stable to current 1429 ---------------------------------------------- 1430 <make sure you have good level 0 dumps> 1431 make buildworld [9] 1432 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1433 [1] 1434 <reboot in single user> [3] 1435 mergemaster -p [5] 1436 make installworld 1437 make delete-old 1438 mergemaster -i [4] 1439 <reboot> 1440 1441 Make sure that you've read the UPDATING file to understand the 1442 tweaks to various things you need. At this point in the life 1443 cycle of current, things change often and you are on your own 1444 to cope. The defaults can also change, so please read ALL of 1445 the UPDATING entries. 1446 1447 Also, if you are tracking -current, you must be subscribed to 1448 freebsd-current@freebsd.org. Make sure that before you update 1449 your sources that you have read and understood all the recent 1450 messages there. If in doubt, please track -stable which has 1451 much fewer pitfalls. 1452 1453 [1] If you have third party modules, such as vmware, you 1454 should disable them at this point so they don't crash your 1455 system on reboot. 1456 1457 [3] From the bootblocks, boot -s, and then do 1458 fsck -p 1459 mount -u / 1460 mount -a 1461 cd src 1462 adjkerntz -i # if CMOS is wall time 1463 Also, when doing a major release upgrade, it is required that 1464 you boot into single user mode to do the installworld. 1465 1466 [4] Note: This step is non-optional. Failure to do this step 1467 can result in a significant reduction in the functionality of the 1468 system. Attempting to do it by hand is not recommended and those 1469 that pursue this avenue should read this file carefully, as well 1470 as the archives of freebsd-current and freebsd-hackers mailing lists 1471 for potential gotchas. 1472 1473 [5] Usually this step is a noop. However, from time to time 1474 you may need to do this if you get unknown user in the following 1475 step. It never hurts to do it all the time. You may need to 1476 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1477 install) after the buildworld before this step if you last updated 1478 from current before 20020224 or from -stable before 20020408. 1479 1480 [8] In order to have a kernel that can run the 4.x binaries 1481 needed to do an installworld, you must include the COMPAT_FREEBSD4 1482 option in your kernel. Failure to do so may leave you with a system 1483 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1484 is required to run the 5.x binaries on more recent kernels. 1485 1486 Make sure that you merge any new devices from GENERIC since the 1487 last time you updated your kernel config file. 1488 1489 [9] When checking out sources, you must include the -P flag to have 1490 cvs prune empty directories. 1491 1492 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1493 "?=" instead of the "=" assignment operator, so that buildworld can 1494 override the CPUTYPE if it needs to. 1495 1496 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1497 not on the command line, or in /etc/make.conf. buildworld will 1498 warn if it is improperly defined. 1499FORMAT: 1500 1501This file contains a list, in reverse chronological order, of major 1502breakages in tracking -current. Not all things will be listed here, 1503and it only starts on October 16, 2004. Updating files can found in 1504previous releases if your system is older than this. 1505 1506Copyright information: 1507 1508Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1509 1510Redistribution, publication, translation and use, with or without 1511modification, in full or in part, in any form or format of this 1512document are permitted without further permission from the author. 1513 1514THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1515IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1516WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1517DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1518INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1519(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1520SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1521HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1522STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1523IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1524POSSIBILITY OF SUCH DAMAGE. 1525 1526If you find this document useful, and you want to, you may buy the 1527author a beer. 1528 1529Contact Warner Losh if you have any questions about your use of 1530this document. 1531 1532$FreeBSD: head/UPDATING 192625 2009-05-23 06:31:50Z edwin $ 1533