UPDATING revision 192629
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 the newly created 28 data to /etc/localtime. 29 3020090520: 31 The sysctl tree for the usb stack has renamed from hw.usb2.* to 32 hw.usb.* and is now consistent again with previous releases. 33 3420090520: 35 802.11 monitor mode support was revised and driver api's 36 were changed. Drivers dependent on net80211 now support 37 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 38 user-visible data structures were changed but applications 39 that use DLT_IEEE802_11 may require changes. 40 Bump __FreeBSD_version to 800088. 41 4220090430: 43 The layout of the following structs has changed: sysctl_oid, 44 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 45 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 46 panics may be experienced. World rebuild is required for 47 correctly checking networking state from userland. 48 Bump __FreeBSD_version to 800085. 49 5020090429: 51 MLDv2 and Source-Specific Multicast (SSM) have been merged 52 to the IPv6 stack. VIMAGE hooks are in but not yet used. 53 The implementation of SSM within FreeBSD's IPv6 stack closely 54 follows the IPv4 implementation. 55 56 For kernel developers: 57 58 * The most important changes are that the ip6_output() and 59 ip6_input() paths no longer take the IN6_MULTI_LOCK, 60 and this lock has been downgraded to a non-recursive mutex. 61 62 * As with the changes to the IPv4 stack to support SSM, filtering 63 of inbound multicast traffic must now be performed by transport 64 protocols within the IPv6 stack. This does not apply to TCP and 65 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 66 67 * The KPIs used by IPv6 multicast are similar to those used by 68 the IPv4 stack, with the following differences: 69 * im6o_mc_filter() is analogous to imo_multicast_filter(). 70 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 71 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 72 * IN6_LOOKUP_MULTI() has been deprecated and removed. 73 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 74 for MLDv1 have an additional 'timer' argument which is used to 75 jitter the initial membership report for the solicited-node 76 multicast membership on-link. 77 * This is not strictly needed for MLDv2, which already jitters 78 its report transmissions. However, the 'timer' argument is 79 preserved in case MLDv1 is active on the interface. 80 81 * The KAME linked-list based IPv6 membership implementation has 82 been refactored to use a vector similar to that used by the IPv4 83 stack. 84 Code which maintains a list of its own multicast memberships 85 internally, e.g. carp, has been updated to reflect the new 86 semantics. 87 88 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 89 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 90 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 91 implementation constraint which needs to be addressed in HEAD. 92 93 For application developers: 94 95 * The changes are broadly similar to those made for the IPv4 96 stack. 97 98 * The use of IPv4 and IPv6 multicast socket options on the same 99 socket, using mapped addresses, HAS NOT been tested or supported. 100 101 * There are a number of issues with the implementation of various 102 IPv6 multicast APIs which need to be resolved in the API surface 103 before the implementation is fully compatible with KAME userland 104 use, and these are mostly to do with interface index treatment. 105 106 * The literature available discusses the use of either the delta / ASM 107 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 108 using setsourcefilter(3)/getsourcefilter(3). For more information 109 please refer to RFC 3768, 'Socket Interface Extensions for 110 Multicast Source Filters'. 111 112 * Applications which use the published RFC 3678 APIs should be fine. 113 114 For systems administrators: 115 116 * The mtest(8) utility has been refactored to support IPv6, in 117 addition to IPv4. Interface addresses are no longer accepted 118 as arguments, their names must be used instead. The utility 119 will map the interface name to its first IPv4 address as 120 returned by getifaddrs(3). 121 122 * The ifmcstat(8) utility has also been updated to print the MLDv2 123 endpoint state and source filter lists via sysctl(3). 124 125 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 126 loopback of IPv6 multicast datagrams by default; it defaults to 1 127 to preserve the existing behaviour. Disabling multicast loopback is 128 recommended for optimal system performance. 129 130 * The IPv6 MROUTING code has been changed to examine this sysctl 131 instead of attempting to perform a group lookup before looping 132 back forwarded datagrams. 133 134 Bump __FreeBSD_version to 800084. 135 13620090422: 137 Implement low-level Bluetooth HCI API. 138 Bump __FreeBSD_version to 800083. 139 14020090419: 141 The layout of struct malloc_type, used by modules to register new 142 memory allocation types, has changed. Most modules will need to 143 be rebuilt or panics may be experienced. 144 Bump __FreeBSD_version to 800081. 145 14620090415: 147 Anticipate overflowing inp_flags - add inp_flags2. 148 This changes most offsets in inpcb, so checking v4 connection 149 state will require a world rebuild. 150 Bump __FreeBSD_version to 800080. 151 15220090415: 153 Add an llentry to struct route and struct route_in6. Modules 154 embedding a struct route will need to be recompiled. 155 Bump __FreeBSD_version to 800079. 156 15720090414: 158 The size of rt_metrics_lite and by extension rtentry has changed. 159 Networking administration apps will need to be recompiled. 160 The route command now supports show as an alias for get, weighting 161 of routes, sticky and nostick flags to alter the behavior of stateful 162 load balancing. 163 Bump __FreeBSD_version to 800078. 164 16520090408: 166 Do not use Giant for kbdmux(4) locking. This is wrong and 167 apparently causing more problems than it solves. This will 168 re-open the issue where interrupt handlers may race with 169 kbdmux(4) in polling mode. Typical symptoms include (but 170 not limited to) duplicated and/or missing characters when 171 low level console functions (such as gets) are used while 172 interrupts are enabled (for example geli password prompt, 173 mountroot prompt etc.). Disabling kbdmux(4) may help. 174 17520090407: 176 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 177 kernel modules referencing any of the above need to be recompiled. 178 Bump __FreeBSD_version to 800075. 179 18020090320: 181 GEOM_PART has become the default partition slicer for storage devices, 182 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 183 introduces some changes: 184 185 MSDOS/EBR: the devices created from MSDOS extended partition entries 186 (EBR) can be named differently than with GEOM_MBR and are now symlinks 187 to devices with offset-based names. fstabs may need to be modified. 188 189 BSD: the "geometry does not match label" warning is harmless in most 190 cases but it points to problems in file system misalignment with 191 disk geometry. The "c" partition is now implicit, covers the whole 192 top-level drive and cannot be (mis)used by users. 193 194 General: Kernel dumps are now not allowed to be written to devices 195 whose partition types indicate they are meant to be used for file 196 systems (or, in case of MSDOS partitions, as something else than 197 the "386BSD" type). 198 199 Most of these changes date approximately from 200812. 200 20120090319: 202 The uscanner(4) driver has been removed from the kernel. This follows 203 Linux removing theirs in 2.6 and making libusb the default interface 204 (supported by sane). 205 20620090319: 207 The multicast forwarding code has been cleaned up. netstat(1) 208 only relies on KVM now for printing bandwidth upcall meters. 209 The IPv4 and IPv6 modules are split into ip_mroute_mod and 210 ip6_mroute_mod respectively. The config(5) options for statically 211 compiling this code remain the same, i.e. 'options MROUTING'. 212 21320090315: 214 Support for the IFF_NEEDSGIANT network interface flag has been 215 removed, which means that non-MPSAFE network device drivers are no 216 longer supported. In particular, if_ar, if_sr, and network device 217 drivers from the old (legacy) USB stack can no longer be built or 218 used. 219 22020090313: 221 POSIX.1 Native Language Support (NLS) has been enabled in libc and 222 a bunch of new language catalog files have also been added. 223 This means that some common libc messages are now localized and 224 they depend on the LC_MESSAGES environmental variable. 225 22620090313: 227 The k8temp(4) driver has been renamed to amdtemp(4) since 228 support for K10 and K11 CPU families was added. 229 23020090309: 231 IGMPv3 and Source-Specific Multicast (SSM) have been merged 232 to the IPv4 stack. VIMAGE hooks are in but not yet used. 233 234 For kernel developers, the most important changes are that the 235 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 236 and this lock has been downgraded to a non-recursive mutex. 237 238 Transport protocols (UDP, Raw IP) are now responsible for filtering 239 inbound multicast traffic according to group membership and source 240 filters. The imo_multicast_filter() KPI exists for this purpose. 241 Transports which do not use multicast (SCTP, TCP) already reject 242 multicast by default. Forwarding and receive performance may improve 243 as a mutex acquisition is no longer needed in the ip_input() 244 low-level input path. in_addmulti() and in_delmulti() are shimmed 245 to new KPIs which exist to support SSM in-kernel. 246 247 For application developers, it is recommended that loopback of 248 multicast datagrams be disabled for best performance, as this 249 will still cause the lock to be taken for each looped-back 250 datagram transmission. The net.inet.ip.mcast.loop sysctl may 251 be tuned to 0 to disable loopback by default; it defaults to 1 252 to preserve the existing behaviour. 253 254 For systems administrators, to obtain best performance with 255 multicast reception and multiple groups, it is always recommended 256 that a card with a suitably precise hash filter is used. Hash 257 collisions will still result in the lock being taken within the 258 transport protocol input path to check group membership. 259 260 If deploying FreeBSD in an environment with IGMP snooping switches, 261 it is recommended that the net.inet.igmp.sendlocal sysctl remain 262 enabled; this forces 224.0.0.0/24 group membership to be announced 263 via IGMP. 264 265 The size of 'struct igmpstat' has changed; netstat needs to be 266 recompiled to reflect this. 267 Bump __FreeBSD_version to 800070. 268 26920090309: 270 libusb20.so.1 is now installed as libusb.so.1 and the ports system 271 updated to use it. This requires a buildworld/installworld in order to 272 update the library and dependencies (usbconfig, etc). Its advisable to 273 rebuild all ports which uses libusb. More specific directions are given 274 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 275 libusb are no longer required and can be removed. 276 27720090302: 278 A workaround is committed to allow the creation of System V shared 279 memory segment of size > 2 GB on the 64-bit architectures. 280 Due to a limitation of the existing ABI, the shm_segsz member 281 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 282 wrong for large segments. Note that limits must be explicitely 283 raised to allow such segments to be created. 284 28520090301: 286 The layout of struct ifnet has changed, requiring a rebuild of all 287 network device driver modules. 288 28920090227: 290 The /dev handling for the new USB stack has changed, a 291 buildworld/installworld is required for libusb20. 292 29320090223: 294 The new USB2 stack has now been permanently moved in and all kernel and 295 module names reverted to their previous values (eg, usb, ehci, ohci, 296 ums, ...). The old usb stack can be compiled in by prefixing the name 297 with the letter 'o', the old usb modules have been removed. 298 Updating entry 20090216 for xorg and 20090215 for libmap may still 299 apply. 300 30120090217: 302 The rc.conf(5) option if_up_delay has been renamed to 303 defaultroute_delay to better reflect its purpose. If you have 304 customized this setting in /etc/rc.conf you need to update it to 305 use the new name. 306 30720090216: 308 xorg 7.4 wants to configure its input devices via hald which does not 309 yet work with USB2. If the keyboard/mouse does not work in xorg then 310 add 311 Option "AllowEmptyInput" "off" 312 to your ServerLayout section. This will cause X to use the configured 313 kbd and mouse sections from your xorg.conf. 314 31520090215: 316 The GENERIC kernels for all architectures now default to the new USB2 317 stack. No kernel config options or code have been removed so if a 318 problem arises please report it and optionally revert to the old USB 319 stack. If you are loading USB kernel modules or have a custom kernel 320 that includes GENERIC then ensure that usb names are also changed over, 321 eg uftdi -> usb2_serial_ftdi. 322 323 Older programs linked against the ports libusb 0.1 need to be 324 redirected to the new stack's libusb20. /etc/libmap.conf can 325 be used for this: 326 # Map old usb library to new one for usb2 stack 327 libusb-0.1.so.8 libusb20.so.1 328 32920090203: 330 The ichsmb(4) driver has been changed to require SMBus slave 331 addresses be left-justified (xxxxxxx0b) rather than right-justified. 332 All of the other SMBus controller drivers require left-justified 333 slave addresses, so this change makes all the drivers provide the 334 same interface. 335 33620090201: 337 INET6 statistics (struct ip6stat) was updated. 338 netstat(1) needs to be recompiled. 339 34020090119: 341 NTFS has been removed from GENERIC kernel on amd64 to match 342 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 343 will load ntfs.ko module automatically when NTFS support is 344 actually needed, unless ntfs.ko is not installed or security 345 level prohibits loading kernel modules. If either is the case, 346 "options NTFS" has to be added into kernel config. 347 34820090115: 349 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 350 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 351 800061. User space tools that rely on the size of struct tcpcb in 352 tcp_var.h (e.g. sockstat) need to be recompiled. 353 35420081225: 355 ng_tty(4) module updated to match the new TTY subsystem. 356 Due to API change, user-level applications must be updated. 357 New API support added to mpd5 CVS and expected to be present 358 in next mpd5.3 release. 359 36020081219: 361 With __FreeBSD_version 800060 the makefs tool is part of 362 the base system (it was a port). 363 36420081216: 365 The afdata and ifnet locks have been changed from mutexes to 366 rwlocks, network modules will need to be re-compiled. 367 36820081214: 369 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 370 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 371 The new code reduced struct rtentry{} by 16 bytes on 32-bit 372 architecture and 40 bytes on 64-bit architecture. The userland 373 applications "arp" and "ndp" have been updated accordingly. 374 The output from "netstat -r" shows only routing entries and 375 none of the L2 information. 376 37720081130: 378 __FreeBSD_version 800057 marks the switchover from the 379 binary ath hal to source code. Users must add the line: 380 381 options AH_SUPPORT_AR5416 382 383 to their kernel config files when specifying: 384 385 device ath_hal 386 387 The ath_hal module no longer exists; the code is now compiled 388 together with the driver in the ath module. It is now 389 possible to tailor chip support (i.e. reduce the set of chips 390 and thereby the code size); consult ath_hal(4) for details. 391 39220081121: 393 __FreeBSD_version 800054 adds memory barriers to 394 <machine/atomic.h>, new interfaces to ifnet to facilitate 395 multiple hardware transmit queues for cards that support 396 them, and a lock-less ring-buffer implementation to 397 enable drivers to more efficiently manage queueing of 398 packets. 399 40020081117: 401 A new version of ZFS (version 13) has been merged to -HEAD. 402 This version has zpool attribute "listsnapshots" off by 403 default, which means "zfs list" does not show snapshots, 404 and is the same as Solaris behavior. 405 40620081028: 407 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 408 40920081009: 410 The uhci, ohci, ehci and slhci USB Host controller drivers have 411 been put into separate modules. If you load the usb module 412 separately through loader.conf you will need to load the 413 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 414 controller add the following to loader.conf: 415 416 uhci_load="YES" 417 ehci_load="YES" 418 41920081009: 420 The ABI used by the PMC toolset has changed. Please keep 421 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 422 sync. 423 42420080820: 425 The TTY subsystem of the kernel has been replaced by a new 426 implementation, which provides better scalability and an 427 improved driver model. Most common drivers have been migrated to 428 the new TTY subsystem, while others have not. The following 429 drivers have not yet been ported to the new TTY layer: 430 431 PCI/ISA: 432 cy, digi, rc, rp, sio 433 434 USB: 435 ubser, ucycom 436 437 Line disciplines: 438 ng_h4, ng_tty, ppp, sl, snp 439 440 Adding these drivers to your kernel configuration file shall 441 cause compilation to fail. 442 44320080818: 444 ntpd has been upgraded to 4.2.4p5. 445 44620080801: 447 OpenSSH has been upgraded to 5.1p1. 448 449 For many years, FreeBSD's version of OpenSSH preferred DSA 450 over RSA for host and user authentication keys. With this 451 upgrade, we've switched to the vendor's default of RSA over 452 DSA. This may cause upgraded clients to warn about unknown 453 host keys even for previously known hosts. Users should 454 follow the usual procedure for verifying host keys before 455 accepting the RSA key. 456 457 This can be circumvented by setting the "HostKeyAlgorithms" 458 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 459 command line. 460 461 Please note that the sequence of keys offered for 462 authentication has been changed as well. You may want to 463 specify IdentityFile in a different order to revert this 464 behavior. 465 46620080713: 467 The sio(4) driver has been removed from the i386 and amd64 468 kernel configuration files. This means uart(4) is now the 469 default serial port driver on those platforms as well. 470 471 To prevent collisions with the sio(4) driver, the uart(4) driver 472 uses different names for its device nodes. This means the 473 onboard serial port will now most likely be called "ttyu0" 474 instead of "ttyd0". You may need to reconfigure applications to 475 use the new device names. 476 477 When using the serial port as a boot console, be sure to update 478 /boot/device.hints and /etc/ttys before booting the new kernel. 479 If you forget to do so, you can still manually specify the hints 480 at the loader prompt: 481 482 set hint.uart.0.at="isa" 483 set hint.uart.0.port="0x3F8" 484 set hint.uart.0.flags="0x10" 485 set hint.uart.0.irq="4" 486 boot -s 487 48820080609: 489 The gpt(8) utility has been removed. Use gpart(8) to partition 490 disks instead. 491 49220080603: 493 The version that Linuxulator emulates was changed from 2.4.2 494 to 2.6.16. If you experience any problems with Linux binaries 495 please try to set sysctl compat.linux.osrelease to 2.4.2 and 496 if it fixes the problem contact emulation mailing list. 497 49820080525: 499 ISDN4BSD (I4B) was removed from the src tree. You may need to 500 update a your kernel configuration and remove relevant entries. 501 50220080509: 503 I have checked in code to support multiple routing tables. 504 See the man pages setfib(1) and setfib(2). 505 This is a hopefully backwards compatible version, 506 but to make use of it you need to compile your kernel 507 with options ROUTETABLES=2 (or more up to 16). 508 50920080420: 510 The 802.11 wireless support was redone to enable multi-bss 511 operation on devices that are capable. The underlying device 512 is no longer used directly but instead wlanX devices are 513 cloned with ifconfig. This requires changes to rc.conf files. 514 For example, change: 515 ifconfig_ath0="WPA DHCP" 516 to 517 wlans_ath0=wlan0 518 ifconfig_wlan0="WPA DHCP" 519 see rc.conf(5) for more details. In addition, mergemaster of 520 /etc/rc.d is highly recommended. Simultaneous update of userland 521 and kernel wouldn't hurt either. 522 523 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 524 modules were merged into the base wlan module. All references 525 to these modules (e.g. in kernel config files) must be removed. 526 52720080408: 528 psm(4) has gained write(2) support in native operation level. 529 Arbitrary commands can be written to /dev/psm%d and status can 530 be read back from it. Therefore, an application is responsible 531 for status validation and error recovery. It is a no-op in 532 other operation levels. 533 53420080312: 535 Support for KSE threading has been removed from the kernel. To 536 run legacy applications linked against KSE libmap.conf may 537 be used. The following libmap.conf may be used to ensure 538 compatibility with any prior release: 539 540 libpthread.so.1 libthr.so.1 541 libpthread.so.2 libthr.so.2 542 libkse.so.3 libthr.so.3 543 54420080301: 545 The layout of struct vmspace has changed. This affects libkvm 546 and any executables that link against libkvm and use the 547 kvm_getprocs() function. In particular, but not exclusively, 548 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 549 The effects are minimal, but it's advisable to upgrade world 550 nonetheless. 551 55220080229: 553 The latest em driver no longer has support in it for the 554 82575 adapter, this is now moved to the igb driver. The 555 split was done to make new features that are incompatible 556 with older hardware easier to do. 557 55820080220: 559 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 560 likewise the kernel option is now GEOM_LINUX_LVM. 561 56220080211: 563 The default NFS mount mode has changed from UDP to TCP for 564 increased reliability. If you rely on (insecurely) NFS 565 mounting across a firewall you may need to update your 566 firewall rules. 567 56820080208: 569 Belatedly note the addition of m_collapse for compacting 570 mbuf chains. 571 57220080126: 573 The fts(3) structures have been changed to use adequate 574 integer types for their members and so to be able to cope 575 with huge file trees. The old fts(3) ABI is preserved 576 through symbol versioning in libc, so third-party binaries 577 using fts(3) should still work, although they will not take 578 advantage of the extended types. At the same time, some 579 third-party software might fail to build after this change 580 due to unportable assumptions made in its source code about 581 fts(3) structure members. Such software should be fixed 582 by its vendor or, in the worst case, in the ports tree. 583 FreeBSD_version 800015 marks this change for the unlikely 584 case that a portable fix is impossible. 585 58620080123: 587 To upgrade to -current after this date, you must be running 588 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 589 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 590 59120071128: 592 The ADAPTIVE_GIANT kernel option has been retired because its 593 functionality is the default now. 594 59520071118: 596 The AT keyboard emulation of sunkbd(4) has been turned on 597 by default. In order to make the special symbols of the Sun 598 keyboards driven by sunkbd(4) work under X these now have 599 to be configured the same way as Sun USB keyboards driven 600 by ukbd(4) (which also does AT keyboard emulation), f.e.: 601 602 Option "XkbLayout" "us" 603 Option "XkbRules" "xorg" 604 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 605 60620071024: 607 It has been decided that it is desirable to provide ABI 608 backwards compatibility to the FreeBSD 4/5/6 versions of the 609 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 610 broken with the introduction of PCI domain support (see the 611 20070930 entry). Unfortunately, this required the ABI of 612 PCIOCGETCONF to be broken again in order to be able to 613 provide backwards compatibility to the old version of that 614 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 615 again. As for prominent ports this affects neither pciutils 616 nor xorg-server this time, the hal port needs to be rebuilt 617 however. 618 61920071020: 620 The misnamed kthread_create() and friends have been renamed 621 to kproc_create() etc. Many of the callers already 622 used kproc_start().. 623 I will return kthread_create() and friends in a while 624 with implementations that actually create threads, not procs. 625 Renaming corresponds with version 800002. 626 62720071010: 628 RELENG_7 branched. 629 63020071009: 631 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 632 WITHOUT_LIBTHR are set. 633 63420070930: 635 The PCI code has been made aware of PCI domains. This means that 636 the location strings as used by pciconf(8) etc are now in the 637 following format: pci<domain>:<bus>:<device>[:<function>]. It 638 also means that consumers of <sys/pciio.h> potentially need to 639 be recompiled; this includes the hal and xorg-server ports. 640 64120070928: 642 The caching daemon (cached) was renamed to nscd. nscd.conf 643 configuration file should be used instead of cached.conf and 644 nscd_enable, nscd_pidfile and nscd_flags options should be used 645 instead of cached_enable, cached_pidfile and cached_flags in 646 rc.conf. 647 64820070921: 649 The getfacl(1) utility now prints owning user and group name 650 instead of owning uid and gid in the three line comment header. 651 This is the same behavior as getfacl(1) on Solaris and Linux. 652 65320070704: 654 The new IPsec code is now compiled in using the IPSEC option. The 655 IPSEC option now requires "device crypto" be defined in your kernel 656 configuration. The FAST_IPSEC kernel option is now deprecated. 657 65820070702: 659 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 660 note the changed syntax - keep state is now on by default. Also 661 note the fact that ftp-proxy(8) has been changed from bottom up and 662 has been moved from libexec to usr/sbin. Changes in the ALTQ 663 handling also affect users of IPFW's ALTQ capabilities. 664 66520070701: 666 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 667 only IPsec supported by FreeBSD. The new IPsec stack 668 supports both IPv4 and IPv6. The kernel option will change 669 after the code changes have settled in. For now the kernel 670 option IPSEC is deprecated and FAST_IPSEC is the only option, that 671 will change after some settling time. 672 67320070701: 674 The wicontrol(8) utility has been removed from the base system. wi(4) 675 cards should be configured using ifconfig(8), see the man page for more 676 information. 677 67820070612: 679 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 680 instead of the nve(4) driver. Please update your configuration 681 accordingly. 682 68320070612: 684 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 685 database if it is missing or older than the aliases file. If 686 desired, set the new rc.conf option sendmail_rebuild_aliases 687 to "YES" to restore that functionality. 688 68920070612: 690 The IPv4 multicast socket code has been considerably modified, and 691 moved to the file sys/netinet/in_mcast.c. Initial support for the 692 RFC 3678 Source-Specific Multicast Socket API has been added to 693 the IPv4 network stack. 694 695 Strict multicast and broadcast reception is now the default for 696 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 697 has now been removed. 698 699 The RFC 1724 hack for interface selection has been removed; the use 700 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 701 been added to replace it. Consumers such as routed will soon be 702 updated to reflect this. 703 704 These changes affect users who are running routed(8) or rdisc(8) 705 from the FreeBSD base system on point-to-point or unnumbered 706 interfaces. 707 70820070610: 709 The net80211 layer has changed significantly and all wireless 710 drivers that depend on it need to be recompiled. Further these 711 changes require that any program that interacts with the wireless 712 support in the kernel be recompiled; this includes: ifconfig, 713 wpa_supplicant, hostapd, and wlanstats. Users must also, for 714 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 715 if they use modules for wireless support. These modules implement 716 scanning support for station and ap modes, respectively. Failure 717 to load the appropriate module before marking a wireless interface 718 up will result in a message to the console and the device not 719 operating properly. 720 72120070610: 722 The pam_nologin(8) module ceases to provide an authentication 723 function and starts providing an account management function. 724 Consequent changes to /etc/pam.d should be brought in using 725 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 726 need manual editing as follows. Locate this line (or similar): 727 728 auth required pam_nologin.so no_warn 729 730 and change it according to this example: 731 732 account required pam_nologin.so no_warn 733 734 That is, the first word needs to be changed from "auth" to 735 "account". The new line can be moved to the account section 736 within the file for clarity. Not updating pam.conf(5) files 737 will result in nologin(5) ignored by the respective services. 738 73920070529: 740 The ether_ioctl() function has been synchronized with ioctl(2) 741 and ifnet.if_ioctl. Due to that, the size of one of its arguments 742 has changed on 64-bit architectures. All kernel modules using 743 ether_ioctl() need to be rebuilt on such architectures. 744 74520070516: 746 Improved INCLUDE_CONFIG_FILE support has been introduced to the 747 config(8) utility. In order to take advantage of this new 748 functionality, you are expected to recompile and install 749 src/usr.sbin/config. If you don't rebuild config(8), and your 750 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 751 build will be broken because of a missing "kernconfstring" 752 symbol. 753 75420070513: 755 Symbol versioning is enabled by default. To disable it, use 756 option WITHOUT_SYMVER. It is not advisable to attempt to 757 disable symbol versioning once it is enabled; your installworld 758 will break because a symbol version-less libc will get installed 759 before the install tools. As a result, the old install tools, 760 which previously had symbol dependencies to FBSD_1.0, will fail 761 because the freshly installed libc will not have them. 762 763 The default threading library (providing "libpthread") has been 764 changed to libthr. If you wish to have libkse as your default, 765 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 766 76720070423: 768 The ABI breakage in sendmail(8)'s libmilter has been repaired 769 so it is no longer necessary to recompile mail filters (aka, 770 milters). If you recompiled mail filters after the 20070408 771 note, it is not necessary to recompile them again. 772 77320070417: 774 The new trunk(4) driver has been renamed to lagg(4) as it better 775 reflects its purpose. ifconfig will need to be recompiled. 776 77720070408: 778 sendmail(8) has been updated to version 8.14.1. Mail filters 779 (aka, milters) compiled against the libmilter included in the 780 base operating system should be recompiled. 781 78220070302: 783 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 784 In order to use them one must agree to the respective LICENSE in 785 share/doc/legal and define legal.intel_<name>.license_ack=1 via 786 loader.conf(5) or kenv(1). Make sure to deinstall the now 787 deprecated modules from the respective firmware ports. 788 78920070228: 790 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 791 were removed from FreeBSD's libc. These originally came from INRIA 792 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 793 deprecated in previous releases. 794 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 795 replace it as a more portable (and re-entrant) API. 796 79720070224: 798 To support interrupt filtering a modification to the newbus API 799 has occurred, ABI was broken and __FreeBSD_version was bumped 800 to 700031. Please make sure that your kernel and modules are in 801 sync. For more info: 802 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 803 80420070224: 805 The IPv6 multicast forwarding code may now be loaded into GENERIC 806 kernels by loading the ip_mroute.ko module. This is built into the 807 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 808 set; see src.conf(5) for more information. 809 81020070214: 811 The output of netstat -r has changed. Without -n, we now only 812 print a "network name" without the prefix length if the network 813 address and mask exactly match a Class A/B/C network, and an entry 814 exists in the nsswitch "networks" map. 815 With -n, we print the full unabbreviated CIDR network prefix in 816 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 817 This change is in preparation for changes such as equal-cost 818 multipath, and to more generally assist operational deployment 819 of FreeBSD as a modern IPv4 router. 820 82120070210: 822 PIM has been turned on by default in the IPv4 multicast 823 routing code. The kernel option 'PIM' has now been removed. 824 PIM is now built by default if option 'MROUTING' is specified. 825 It may now be loaded into GENERIC kernels by loading the 826 ip_mroute.ko module. 827 82820070207: 829 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 830 has been removed. Its functionality may be achieved by explicitly 831 configuring gif(4) interfaces and using the 'phyint' keyword in 832 mrouted.conf. 833 XORP does not support source-routed IPv4 multicast tunnels nor the 834 integrated IPIP tunneling, therefore it is not affected by this 835 change. The __FreeBSD_version macro has been bumped to 700030. 836 83720061221: 838 Support for PCI Message Signalled Interrupts has been 839 re-enabled in the bge driver, only for those chips which are 840 believed to support it properly. If there are any problems, 841 MSI can be disabled completely by setting the 842 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 843 in the loader. 844 84520061214: 846 Support for PCI Message Signalled Interrupts has been 847 disabled again in the bge driver. Many revisions of the 848 hardware fail to support it properly. Support can be 849 re-enabled by removing the #define of BGE_DISABLE_MSI in 850 "src/sys/dev/bge/if_bge.c". 851 85220061214: 853 Support for PCI Message Signalled Interrupts has been added 854 to the bge driver. If there are any problems, MSI can be 855 disabled completely by setting the 'hw.pci.enable_msi' and 856 'hw.pci.enable_msix' tunables to 0 in the loader. 857 85820061205: 859 The removal of several facets of the experimental Threading 860 system from the kernel means that the proc and thread structures 861 have changed quite a bit. I suggest all kernel modules that might 862 reference these structures be recompiled.. Especially the 863 linux module. 864 86520061126: 866 Sound infrastructure has been updated with various fixes and 867 improvements. Most of the changes are pretty much transparent, 868 with exceptions of followings: 869 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 870 moved to their own dev sysctl nodes, for example: 871 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 872 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 873 own chardev in the form of "dsp%d.<function>%d", where <function> 874 is p = playback, r = record and v = virtual, respectively. Users 875 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 876 This does not affect those who are using "/dev/dsp". 877 87820061122: 879 geom(4)'s gmirror(8) class metadata structure has been 880 rev'd from v3 to v4. If you update across this point and 881 your metadata is converted for you, you will not be easily 882 able to downgrade since the /boot/kernel.old/geom_mirror.ko 883 kernel module will be unable to read the v4 metadata. You 884 can resolve this by doing from the loader(8) prompt: 885 886 set vfs.root.mountfrom="ufs:/dev/XXX" 887 888 where XXX is the root slice of one of the disks that composed 889 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 890 the array the same way you built it originally. 891 89220061122: 893 The following binaries have been disconnected from the build: 894 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 895 and mount_std. The functionality of these programs has been 896 moved into the mount program. For example, to mount a devfs 897 filesystem, instead of using mount_devfs, use: "mount -t devfs". 898 This does not affect entries in /etc/fstab, since entries in 899 /etc/fstab are always processed with "mount -t fstype". 900 90120061113: 902 Support for PCI Message Signalled Interrupts on i386 and amd64 903 has been added to the kernel and various drivers will soon be 904 updated to use MSI when it is available. If there are any problems, 905 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 906 and 'hw.pci.enable_msix' tunables to 0 in the loader. 907 90820061110: 909 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 910 The lockmgr object layout has been changed as a result of having 911 a lock_object embedded in it. As a consequence all file system 912 kernel modules must be re-compiled. The mutex profiling man page 913 has not yet been updated to reflect this change. 914 91520061026: 916 KSE in the kernel has now been made optional and turned on by 917 default. Use 'nooption KSE' in your kernel config to turn it 918 off. All kernel modules *must* be recompiled after this change. 919 There-after, modules from a KSE kernel should be compatible with 920 modules from a NOKSE kernel due to the temporary padding fields 921 added to 'struct proc'. 922 92320060929: 924 mrouted and its utilities have been removed from the base system. 925 92620060927: 927 Some ioctl(2) command codes have changed. Full backward ABI 928 compatibility is provided if the "options COMPAT_FREEBSD6" is 929 present in the kernel configuration file. Make sure to add 930 this option to your kernel config file, or recompile X.Org 931 and the rest of ports; otherwise they may refuse to work. 932 93320060924: 934 tcpslice has been removed from the base system. 935 93620060913: 937 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 938 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 939 systat needs to be rebuilt. 940 94120060903: 942 libpcap updated to v0.9.4 and tcpdump to v3.9.4 943 94420060816: 945 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 946 for IPFIREWALL_FORWARD is now as it was before when it was first 947 committed and for years after. The behaviour is now ON. 948 94920060725: 950 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 951 Now it can decrypt files created from different architectures. 952 Unfortunately, it is no longer able to decrypt a cipher text 953 generated with an older version on 64 bit architectures. 954 If you have such a file, you need old utility to decrypt it. 955 95620060709: 957 The interface version of the i4b kernel part has changed. So 958 after updating the kernel sources and compiling a new kernel, 959 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 960 be rebuilt, and vice versa. 961 96220060627: 963 The XBOX kernel now defaults to the nfe(4) driver instead of 964 the nve(4) driver. Please update your configuration 965 accordingly. 966 96720060514: 968 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 969 PCnet family of NICs has been removed. The new le(4) driver serves 970 as an equivalent but cross-platform replacement with the pcn(4) 971 driver still providing performance-optimized support for the subset 972 of AMD Am79C971 PCnet-FAST and greater chips as before. 973 97420060511: 975 The machdep.* sysctls and the adjkerntz utility have been 976 modified a bit. The new adjkerntz utility uses the new 977 sysctl names and sysctlbyname() calls, so it may be impossible 978 to run an old /sbin/adjkerntz utility in single-user mode 979 with a new kernel. Replace the `adjkerntz -i' step before 980 `make installworld' with: 981 982 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 983 984 and proceed as usual with the rest of the installworld-stage 985 steps. Otherwise, you risk installing binaries with their 986 timestamp set several hours in the future, especially if 987 you are running with local time set to GMT+X hours. 988 98920060412: 990 The ip6fw utility has been removed. The behavior provided by 991 ip6fw has been in ipfw2 for a good while and the rc.d scripts 992 have been updated to deal with it. There are some rules that 993 might not migrate cleanly. Use rc.firewall6 as a template to 994 rewrite rules. 995 99620060428: 997 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 998 attachments have been removed. Make sure to configure scc(4) 999 on sparc64. Note also that by default puc(4) will use uart(4) 1000 and not sio(4) for serial ports because interrupt handling has 1001 been optimized for multi-port serial cards and only uart(4) 1002 implements the interface to support it. 1003 100420060330: 1005 The scc(4) driver replaces puc(4) for Serial Communications 1006 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1007 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1008 configuration to make sure that the serial ports remain 1009 functional. 1010 101120060317: 1012 Most world/kernel related NO_* build options changed names. 1013 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1014 after FreeBSD ports) and should be set in /etc/src.conf 1015 (the src.conf(5) manpage is provided). Full backwards 1016 compatibility is maintained for the time being though it's 1017 highly recommended to start moving old options out of the 1018 system-wide /etc/make.conf file into the new /etc/src.conf 1019 while also properly renaming them. More conversions will 1020 likely follow. Posting to current@: 1021 1022 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1023 102420060305: 1025 The NETSMBCRYPTO kernel option has been retired because its 1026 functionality is always included in NETSMB and smbfs.ko now. 1027 102820060303: 1029 The TDFX_LINUX kernel option was retired and replaced by the 1030 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1031 kernel module. Loading it alone should suffice to get 3dfx support 1032 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1033 its dependencies. 1034 103520060204: 1036 The 'audit' group was added to support the new auditing functionality 1037 in the base system. Be sure to follow the directions for updating, 1038 including the requirement to run mergemaster -p. 1039 104020060201: 1041 The kernel ABI to file system modules was changed on i386. 1042 Please make sure that your kernel and modules are in sync. 1043 104420060118: 1045 This actually occured some time ago, but installing the kernel 1046 now also installs a bunch of symbol files for the kernel modules. 1047 This increases the size of /boot/kernel to about 67Mbytes. You 1048 will need twice this if you will eventually back this up to kernel.old 1049 on your next install. 1050 If you have a shortage of room in your root partition, you should add 1051 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1052 to your /etc/make.conf. 1053 105420060113: 1055 libc's malloc implementation has been replaced. This change has the 1056 potential to uncover application bugs that previously went unnoticed. 1057 See the malloc(3) manual page for more details. 1058 105920060112: 1060 The generic netgraph(4) cookie has been changed. If you upgrade 1061 kernel passing this point, you also need to upgrade userland 1062 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1063 106420060106: 1065 si(4)'s device files now contain the unit number. 1066 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1067 106820060106: 1069 The kernel ABI was mostly destroyed due to a change in the size 1070 of struct lock_object which is nested in other structures such 1071 as mutexes which are nested in all sorts of other structures. 1072 Make sure your kernel and modules are in sync. 1073 107420051231: 1075 The page coloring algorithm in the VM subsystem was converted 1076 from tuning with kernel options to autotuning. Please remove 1077 any PQ_* option except PQ_NOOPT from your kernel config. 1078 107920051211: 1080 The net80211-related tools in the tools/tools/ath directory 1081 have been moved to tools/tools/net80211 and renamed with a 1082 "wlan" prefix. Scripts that use them should be adjusted 1083 accordingly. 1084 108520051202: 1086 Scripts in the local_startup directories (as defined in 1087 /etc/defaults/rc.conf) that have the new rc.d semantics will 1088 now be run as part of the base system rcorder. If there are 1089 errors or problems with one of these local scripts, it could 1090 cause boot problems. If you encounter such problems, boot in 1091 single user mode, remove that script from the */rc.d directory. 1092 Please report the problem to the port's maintainer, and the 1093 freebsd-ports@freebsd.org mailing list. 1094 109520051129: 1096 The nodev mount option was deprecated in RELENG_6 (where it 1097 was a no-op), and is now unsupported. If you have nodev or dev listed 1098 in /etc/fstab, remove it, otherwise it will result in a mount error. 1099 110020051129: 1101 ABI between ipfw(4) and ipfw(8) has been changed. You need 1102 to rebuild ipfw(8) when rebuilding kernel. 1103 110420051108: 1105 rp(4)'s device files now contain the unit number. 1106 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1107 110820051029: 1109 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1110 Its /etc/rc.conf.d configuration file has been `ppp' from 1111 the beginning, and hence there is no need to touch it. 1112 111320051014: 1114 Now most modules get their build-time options from the kernel 1115 configuration file. A few modules still have fixed options 1116 due to their non-conformant implementation, but they will be 1117 corrected eventually. You may need to review the options of 1118 the modules in use, explicitly specify the non-default options 1119 in the kernel configuration file, and rebuild the kernel and 1120 modules afterwards. 1121 112220051001: 1123 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1124 to turn polling(4) on your interfaces. 1125 112620050927: 1127 The old bridge(4) implementation was retired. The new 1128 if_bridge(4) serves as a full functional replacement. 1129 113020050722: 1131 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1132 to conform to POSIX-2001. This change broke an ABI 1133 compatibility on 64 bit architecture. You have to recompile 1134 userland programs that use getaddrinfo(3) on 64 bit 1135 architecture. 1136 113720050711: 1138 RELENG_6 branched here. 1139 114020050629: 1141 The pccard_ifconfig rc.conf variable has been removed and a new 1142 variable, ifconfig_DEFAULT has been introduced. Unlike 1143 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1144 do not have ifconfig_ifn entries rather than just those in 1145 removable_interfaces. 1146 114720050616: 1148 Some previous versions of PAM have permitted the use of 1149 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1150 to third party PAM modules in /usr/local/lib. A change has been 1151 made to require the use of absolute paths in order to avoid 1152 ambiguity and dependence on library path configuration, which may 1153 affect existing configurations. 1154 115520050610: 1156 Major changes to network interface API. All drivers must be 1157 recompiled. Drivers not in the base system will need to be 1158 updated to the new APIs. 1159 116020050609: 1161 Changes were made to kinfo_proc in sys/user.h. Please recompile 1162 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1163 will not behave correctly. 1164 1165 The API and ABI for hwpmc(4) have changed with the addition 1166 of sampling support. Please recompile lib/libpmc(3) and 1167 usr.sbin/{pmcstat,pmccontrol}. 1168 116920050606: 1170 The OpenBSD dhclient was imported in place of the ISC dhclient 1171 and the network interface configuration scripts were updated 1172 accordingly. If you use DHCP to configure your interfaces, you 1173 must now run devd. Also, DNS updating was lost so you will need 1174 to find a workaround if you use this feature. 1175 1176 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1177 sure to run mergemaster -p (like you are supposed to do every time 1178 anyway). 1179 118020050605: 1181 if_bridge was added to the tree. This has changed struct ifnet. 1182 Please recompile userland and all network related modules. 1183 118420050603: 1185 The n_net of a struct netent was changed to an uint32_t, and 1186 1st argument of getnetbyaddr() was changed to an uint32_t, to 1187 conform to POSIX-2001. These changes broke an ABI 1188 compatibility on 64 bit architecture. With these changes, 1189 shlib major of libpcap was bumped. You have to recompile 1190 userland programs that use getnetbyaddr(3), getnetbyname(3), 1191 getnetent(3) and/or libpcap on 64 bit architecture. 1192 119320050528: 1194 Kernel parsing of extra options on '#!' first lines of shell 1195 scripts has changed. Lines with multiple options likely will 1196 fail after this date. For full details, please see 1197 http://people.freebsd.org/~gad/Updating-20050528.txt 1198 119920050503: 1200 The packet filter (pf) code has been updated to OpenBSD 3.7 1201 Please note the changed anchor syntax and the fact that 1202 authpf(8) now needs a mounted fdescfs(5) to function. 1203 120420050415: 1205 The NO_MIXED_MODE kernel option has been removed from the i386 1206 amd64 platforms as its use has been superceded by the new local 1207 APIC timer code. Any kernel config files containing this option 1208 should be updated. 1209 121020050227: 1211 The on-disk format of LC_CTYPE files was changed to be machine 1212 independent. Please make sure NOT to use NO_CLEAN buildworld 1213 when crossing this point. Crossing this point also requires 1214 recompile or reinstall of all locale depended packages. 1215 121620050225: 1217 The ifi_epoch member of struct if_data has been changed to 1218 contain the uptime at which the interface was created or the 1219 statistics zeroed rather then the wall clock time because 1220 wallclock time may go backwards. This should have no impact 1221 unless an snmp implementation is using this value (I know of 1222 none at this point.) 1223 122420050224: 1225 The acpi_perf and acpi_throttle drivers are now part of the 1226 acpi(4) main module. They are no longer built separately. 1227 122820050223: 1229 The layout of struct image_params has changed. You have to 1230 recompile all compatibility modules (linux, svr4, etc) for use 1231 with the new kernel. 1232 123320050223: 1234 The p4tcc driver has been merged into cpufreq(4). This makes 1235 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1236 compile in "device cpufreq" to restore this functionality. 1237 123820050220: 1239 The responsibility of recomputing the file system summary of 1240 a SoftUpdates-enabled dirty volume has been transferred to the 1241 background fsck. A rebuild of fsck(8) utility is recommended 1242 if you have updated the kernel. 1243 1244 To get the old behavior (recompute file system summary at mount 1245 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1246 mounting the new volume. 1247 124820050206: 1249 The cpufreq import is complete. As part of this, the sysctls for 1250 acpi(4) throttling have been removed. The power_profile script 1251 has been updated, so you can use performance/economy_cpu_freq in 1252 rc.conf(5) to set AC on/offline cpu frequencies. 1253 125420050206: 1255 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1256 requires recompiling libnetgraph and userland netgraph utilities. 1257 125820050114: 1259 Support for abbreviated forms of a number of ipfw options is 1260 now deprecated. Warnings are printed to stderr indicating the 1261 correct full form when a match occurs. Some abbreviations may 1262 be supported at a later date based on user feedback. To be 1263 considered for support, abbreviations must be in use prior to 1264 this commit and unlikely to be confused with current key words. 1265 126620041221: 1267 By a popular demand, a lot of NOFOO options were renamed 1268 to NO_FOO (see bsd.compat.mk for a full list). The old 1269 spellings are still supported, but will cause annoying 1270 warnings on stderr. Make sure you upgrade properly (see 1271 the COMMON ITEMS: section later in this file). 1272 127320041219: 1274 Auto-loading of ancillary wlan modules such as wlan_wep has 1275 been temporarily disabled; you need to statically configure 1276 the modules you need into your kernel or explicitly load them 1277 prior to use. Specifically, if you intend to use WEP encryption 1278 with an 802.11 device load/configure wlan_wep; if you want to 1279 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1280 and wlan_xauth as required. 1281 128220041213: 1283 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1284 (``enable lqr''), older versions would revert to LCP ECHO mode on 1285 negotiation failure. Now, ``enable echo'' is required for this 1286 behaviour. The ppp version number has been bumped to 3.4.2 to 1287 reflect the change. 1288 128920041201: 1290 The wlan support has been updated to split the crypto support 1291 into separate modules. For static WEP you must configure the 1292 wlan_wep module in your system or build and install the module 1293 in place where it can be loaded (the kernel will auto-load 1294 the module when a wep key is configured). 1295 129620041201: 1297 The ath driver has been updated to split the tx rate control 1298 algorithm into a separate module. You need to include either 1299 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1300 130120041116: 1302 Support for systems with an 80386 CPU has been removed. Please 1303 use FreeBSD 5.x or earlier on systems with an 80386. 1304 130520041110: 1306 We have had a hack which would mount the root filesystem 1307 R/W if the device were named 'md*'. As part of the vnode 1308 work I'm doing I have had to remove this hack. People 1309 building systems which use preloaded MD root filesystems 1310 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1311 their /etc/rc scripts. 1312 131320041104: 1314 FreeBSD 5.3 shipped here. 1315 131620041102: 1317 The size of struct tcpcb has changed again due to the removal 1318 of RFC1644 T/TCP. You have to recompile userland programs that 1319 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1320 132120041022: 1322 The size of struct tcpcb has changed. You have to recompile 1323 userland programs that read kmem for tcp sockets directly 1324 (netstat, sockstat, etc.) 1325 132620041016: 1327 RELENG_5 branched here. For older entries, please see updating 1328 in the RELENG_5 branch. 1329 1330COMMON ITEMS: 1331 1332 General Notes 1333 ------------- 1334 Avoid using make -j when upgrading. From time to time in the 1335 past there have been problems using -j with buildworld and/or 1336 installworld. This is especially true when upgrading between 1337 "distant" versions (eg one that cross a major release boundary 1338 or several minor releases, or when several months have passed 1339 on the -current branch). 1340 1341 Sometimes, obscure build problems are the result of environment 1342 poisoning. This can happen because the make utility reads its 1343 environment when searching for values for global variables. 1344 To run your build attempts in an "environmental clean room", 1345 prefix all make commands with 'env -i '. See the env(1) manual 1346 page for more details. 1347 1348 When upgrading from one major version to another it is generally 1349 best to upgrade to the latest code in the currently installed branch 1350 first, then do an upgrade to the new branch. This is the best-tested 1351 upgrade path, and has the highest probability of being successful. 1352 Please try this approach before reporting problems with a major 1353 version upgrade. 1354 1355 To build a kernel 1356 ----------------- 1357 If you are updating from a prior version of FreeBSD (even one just 1358 a few days old), you should follow this procedure. It is the most 1359 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1360 1361 make kernel-toolchain 1362 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1363 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1364 1365 To test a kernel once 1366 --------------------- 1367 If you just want to boot a kernel once (because you are not sure 1368 if it works, or if you want to boot a known bad kernel to provide 1369 debugging information) run 1370 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1371 nextboot -k testkernel 1372 1373 To just build a kernel when you know that it won't mess you up 1374 -------------------------------------------------------------- 1375 This assumes you are already running a 5.X system. Replace 1376 ${arch} with the architecture of your machine (e.g. "i386", 1377 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1378 1379 cd src/sys/${arch}/conf 1380 config KERNEL_NAME_HERE 1381 cd ../compile/KERNEL_NAME_HERE 1382 make depend 1383 make 1384 make install 1385 1386 If this fails, go to the "To build a kernel" section. 1387 1388 To rebuild everything and install it on the current system. 1389 ----------------------------------------------------------- 1390 # Note: sometimes if you are running current you gotta do more than 1391 # is listed here if you are upgrading from a really old current. 1392 1393 <make sure you have good level 0 dumps> 1394 make buildworld 1395 make kernel KERNCONF=YOUR_KERNEL_HERE 1396 [1] 1397 <reboot in single user> [3] 1398 mergemaster -p [5] 1399 make installworld 1400 make delete-old 1401 mergemaster [4] 1402 <reboot> 1403 1404 1405 To cross-install current onto a separate partition 1406 -------------------------------------------------- 1407 # In this approach we use a separate partition to hold 1408 # current's root, 'usr', and 'var' directories. A partition 1409 # holding "/", "/usr" and "/var" should be about 2GB in 1410 # size. 1411 1412 <make sure you have good level 0 dumps> 1413 <boot into -stable> 1414 make buildworld 1415 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1416 <maybe newfs current's root partition> 1417 <mount current's root partition on directory ${CURRENT_ROOT}> 1418 make installworld DESTDIR=${CURRENT_ROOT} 1419 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1420 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1421 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1422 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1423 <reboot into current> 1424 <do a "native" rebuild/install as described in the previous section> 1425 <maybe install compatibility libraries from ports/misc/compat*> 1426 <reboot> 1427 1428 1429 To upgrade in-place from 5.x-stable to current 1430 ---------------------------------------------- 1431 <make sure you have good level 0 dumps> 1432 make buildworld [9] 1433 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1434 [1] 1435 <reboot in single user> [3] 1436 mergemaster -p [5] 1437 make installworld 1438 make delete-old 1439 mergemaster -i [4] 1440 <reboot> 1441 1442 Make sure that you've read the UPDATING file to understand the 1443 tweaks to various things you need. At this point in the life 1444 cycle of current, things change often and you are on your own 1445 to cope. The defaults can also change, so please read ALL of 1446 the UPDATING entries. 1447 1448 Also, if you are tracking -current, you must be subscribed to 1449 freebsd-current@freebsd.org. Make sure that before you update 1450 your sources that you have read and understood all the recent 1451 messages there. If in doubt, please track -stable which has 1452 much fewer pitfalls. 1453 1454 [1] If you have third party modules, such as vmware, you 1455 should disable them at this point so they don't crash your 1456 system on reboot. 1457 1458 [3] From the bootblocks, boot -s, and then do 1459 fsck -p 1460 mount -u / 1461 mount -a 1462 cd src 1463 adjkerntz -i # if CMOS is wall time 1464 Also, when doing a major release upgrade, it is required that 1465 you boot into single user mode to do the installworld. 1466 1467 [4] Note: This step is non-optional. Failure to do this step 1468 can result in a significant reduction in the functionality of the 1469 system. Attempting to do it by hand is not recommended and those 1470 that pursue this avenue should read this file carefully, as well 1471 as the archives of freebsd-current and freebsd-hackers mailing lists 1472 for potential gotchas. 1473 1474 [5] Usually this step is a noop. However, from time to time 1475 you may need to do this if you get unknown user in the following 1476 step. It never hurts to do it all the time. You may need to 1477 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1478 install) after the buildworld before this step if you last updated 1479 from current before 20020224 or from -stable before 20020408. 1480 1481 [8] In order to have a kernel that can run the 4.x binaries 1482 needed to do an installworld, you must include the COMPAT_FREEBSD4 1483 option in your kernel. Failure to do so may leave you with a system 1484 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1485 is required to run the 5.x binaries on more recent kernels. 1486 1487 Make sure that you merge any new devices from GENERIC since the 1488 last time you updated your kernel config file. 1489 1490 [9] When checking out sources, you must include the -P flag to have 1491 cvs prune empty directories. 1492 1493 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1494 "?=" instead of the "=" assignment operator, so that buildworld can 1495 override the CPUTYPE if it needs to. 1496 1497 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1498 not on the command line, or in /etc/make.conf. buildworld will 1499 warn if it is improperly defined. 1500FORMAT: 1501 1502This file contains a list, in reverse chronological order, of major 1503breakages in tracking -current. Not all things will be listed here, 1504and it only starts on October 16, 2004. Updating files can found in 1505previous releases if your system is older than this. 1506 1507Copyright information: 1508 1509Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1510 1511Redistribution, publication, translation and use, with or without 1512modification, in full or in part, in any form or format of this 1513document are permitted without further permission from the author. 1514 1515THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1516IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1517WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1518DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1519INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1520(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1521SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1522HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1523STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1524IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1525POSSIBILITY OF SUCH DAMAGE. 1526 1527If you find this document useful, and you want to, you may buy the 1528author a beer. 1529 1530Contact Warner Losh if you have any questions about your use of 1531this document. 1532 1533$FreeBSD: head/UPDATING 192629 2009-05-23 08:49:55Z edwin $ 1534