UPDATING revision 195064
1169695SkanUpdating Information for FreeBSD current users 2169695Skan 3169695SkanThis file is maintained and copyrighted by M. Warner Losh 4169695Skan<imp@village.org>. See end of file for further details. For commonly 5169695Skandone items, please see the COMMON ITEMS: section later in the file. 6169695Skan 7169695SkanItems affecting the ports and packages system can be found in 8169695Skan/usr/ports/UPDATING. Please read that file before running 9169695Skanportupgrade. 10169695Skan 11169695SkanNOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW: 12169695Skan FreeBSD 8.x has many debugging features turned on, in 13169695Skan both the kernel and userland. These features attempt to detect 14169695Skan incorrect use of system primitives, and encourage loud failure 15169695Skan through extra sanity checking and fail stop semantics. They 16169695Skan also substantially impact system performance. If you want to 17169695Skan do performance measurement, benchmarking, and optimization, 18169695Skan you'll want to turn them off. This includes various WITNESS- 19169695Skan related kernel options, INVARIANTS, malloc debugging flags 20169695Skan in userland, and various verbose features in the kernel. Many 21169695Skan developers choose to disable these features on build machines 22169695Skan to maximize performance. (To disable malloc debugging, run 23169695Skan ln -s aj /etc/malloc.conf.) 24169695Skan 25169695Skan20090624: 26169695Skan The ABI of various structures related to the SYSV IPC API have 27169695Skan been changed. As a result, the COMPAT_FREEBSD[456] kernel 28169695Skan options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version 29169695Skan to 800100. 30169695Skan 31169695Skan20090622: 32169695Skan Layout of struct vnet has changed as routing related variables 33169695Skan were moved to their own Vimage module. Modules need to be 34169695Skan recompiled. Bump __FreeBSD_version to 800099. 35169695Skan 36169695Skan20090619: 37169695Skan NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 38169695Skan and 1024 respectively. As long as no more than 16 groups per 39169695Skan process are used, no changes should be visible. When more 40169695Skan than 16 groups are used, old binaries may fail if they call 41169695Skan getgroups() or getgrouplist() with statically sized storage. 42169695Skan Recompiling will work around this, but applications should be 43169695Skan modified to use dynamically allocated storage for group arrays 44169695Skan as POSIX.1-2008 does not cap an implementation's number of 45169695Skan supported groups at NGROUPS_MAX+1 as previous versions did. 46169695Skan 47169695Skan NFS and portalfs mounts may also be affected as the list of 48169695Skan groups is truncated to 16. Users of NFS who use more than 16 49169695Skan groups, should take care that negative group permissions are not 50169695Skan used on the exported file systems as they will not be reliable 51169695Skan unless a GSSAPI based authentication method is used. 52169695Skan 53169695Skan20090616: 54169695Skan The compiling option ADAPTIVE_LOCKMGRS has been introduced. 55169695Skan This option compiles in the support for adaptive spinning for lockmgrs 56169695Skan which want to enable it. The lockinit() function now accepts the 57169695Skan flag LK_ADAPTIVE in order to make the lock object subject to 58169695Skan adaptive spinning when both held in write and read mode. 59169695Skan 60169695Skan20090613: 61169695Skan The layout of the structure returned by IEEE80211_IOC_STA_INFO 62169695Skan has changed. User applications that use this ioctl need to be 63169695Skan rebuilt. 64169695Skan 65169695Skan20090611: 66169695Skan The layout of struct thread has changed. Kernel and modules 67169695Skan need to be rebuilt. 68169695Skan 69169695Skan20090608: 70169695Skan The layout of structs ifnet, domain, protosw and vnet_net has 71169695Skan changed. Kernel modules need to be rebuilt. 72169695Skan Bump __FreeBSD_version to 800097. 73169695Skan 74169695Skan20090602: 75169695Skan window(1) has been removed from the base system. It can now be 76169695Skan installed from ports. The port is called misc/window. 77169695Skan 78169695Skan20090601: 79169695Skan The way we are storing and accessing `routing table' entries 80169695Skan has changed. Programs reading the FIB, like netstat, need to 81169695Skan be re-compiled. 82169695Skan 83169695Skan20090601: 84169695Skan A new netisr implementation has been added for FreeBSD 8. Network 85169695Skan file system modules, such as igmp, ipdivert, and others, should be 86169695Skan rebuilt. 87169695Skan Bump __FreeBSD_version to 800096. 88169695Skan 89169695Skan20090530: 90169695Skan Remove the tunable/sysctl debug.mpsafevfs as its initial purpose 91169695Skan is no more valid. 92169695Skan 93169695Skan20090530: 94169695Skan Add VOP_ACCESSX(9). File system modules need to be rebuilt. 95169695Skan Bump __FreeBSD_version to 800094. 96169695Skan 97169695Skan20090529: 98169695Skan Add mnt_xflag field to 'struct mount'. File system modules 99169695Skan need to be rebuilt. 100169695Skan Bump __FreeBSD_version to 800093. 101169695Skan 10220090528: 103 The compiling option ADAPTIVE_SX has been retired while it has been 104 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 105 The KPI for sx_init_flags() changes as accepting flags: 106 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 107 has been introduced in order to handle the reversed logic. 108 Bump __FreeBSD_version to 800092. 109 11020090527: 111 Add support for hierarchical jails. Remove global securelevel. 112 Bump __FreeBSD_version to 800091. 113 11420090523: 115 The layout of struct vnet_net has changed, therefore modules 116 need to be rebuilt. 117 Bump __FreeBSD_version to 800090. 118 11920090523: 120 The newly imported zic(8) produces a new format in the 121 output. Please run tzsetup(8) to install the newly created 122 data to /etc/localtime. 123 12420090520: 125 The sysctl tree for the usb stack has renamed from hw.usb2.* to 126 hw.usb.* and is now consistent again with previous releases. 127 12820090520: 129 802.11 monitor mode support was revised and driver api's 130 were changed. Drivers dependent on net80211 now support 131 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 132 user-visible data structures were changed but applications 133 that use DLT_IEEE802_11 may require changes. 134 Bump __FreeBSD_version to 800088. 135 13620090430: 137 The layout of the following structs has changed: sysctl_oid, 138 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 139 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 140 panics may be experienced. World rebuild is required for 141 correctly checking networking state from userland. 142 Bump __FreeBSD_version to 800085. 143 14420090429: 145 MLDv2 and Source-Specific Multicast (SSM) have been merged 146 to the IPv6 stack. VIMAGE hooks are in but not yet used. 147 The implementation of SSM within FreeBSD's IPv6 stack closely 148 follows the IPv4 implementation. 149 150 For kernel developers: 151 152 * The most important changes are that the ip6_output() and 153 ip6_input() paths no longer take the IN6_MULTI_LOCK, 154 and this lock has been downgraded to a non-recursive mutex. 155 156 * As with the changes to the IPv4 stack to support SSM, filtering 157 of inbound multicast traffic must now be performed by transport 158 protocols within the IPv6 stack. This does not apply to TCP and 159 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 160 161 * The KPIs used by IPv6 multicast are similar to those used by 162 the IPv4 stack, with the following differences: 163 * im6o_mc_filter() is analogous to imo_multicast_filter(). 164 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 165 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 166 * IN6_LOOKUP_MULTI() has been deprecated and removed. 167 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 168 for MLDv1 have an additional 'timer' argument which is used to 169 jitter the initial membership report for the solicited-node 170 multicast membership on-link. 171 * This is not strictly needed for MLDv2, which already jitters 172 its report transmissions. However, the 'timer' argument is 173 preserved in case MLDv1 is active on the interface. 174 175 * The KAME linked-list based IPv6 membership implementation has 176 been refactored to use a vector similar to that used by the IPv4 177 stack. 178 Code which maintains a list of its own multicast memberships 179 internally, e.g. carp, has been updated to reflect the new 180 semantics. 181 182 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 183 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 184 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 185 implementation constraint which needs to be addressed in HEAD. 186 187 For application developers: 188 189 * The changes are broadly similar to those made for the IPv4 190 stack. 191 192 * The use of IPv4 and IPv6 multicast socket options on the same 193 socket, using mapped addresses, HAS NOT been tested or supported. 194 195 * There are a number of issues with the implementation of various 196 IPv6 multicast APIs which need to be resolved in the API surface 197 before the implementation is fully compatible with KAME userland 198 use, and these are mostly to do with interface index treatment. 199 200 * The literature available discusses the use of either the delta / ASM 201 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 202 using setsourcefilter(3)/getsourcefilter(3). For more information 203 please refer to RFC 3768, 'Socket Interface Extensions for 204 Multicast Source Filters'. 205 206 * Applications which use the published RFC 3678 APIs should be fine. 207 208 For systems administrators: 209 210 * The mtest(8) utility has been refactored to support IPv6, in 211 addition to IPv4. Interface addresses are no longer accepted 212 as arguments, their names must be used instead. The utility 213 will map the interface name to its first IPv4 address as 214 returned by getifaddrs(3). 215 216 * The ifmcstat(8) utility has also been updated to print the MLDv2 217 endpoint state and source filter lists via sysctl(3). 218 219 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 220 loopback of IPv6 multicast datagrams by default; it defaults to 1 221 to preserve the existing behaviour. Disabling multicast loopback is 222 recommended for optimal system performance. 223 224 * The IPv6 MROUTING code has been changed to examine this sysctl 225 instead of attempting to perform a group lookup before looping 226 back forwarded datagrams. 227 228 Bump __FreeBSD_version to 800084. 229 23020090422: 231 Implement low-level Bluetooth HCI API. 232 Bump __FreeBSD_version to 800083. 233 23420090419: 235 The layout of struct malloc_type, used by modules to register new 236 memory allocation types, has changed. Most modules will need to 237 be rebuilt or panics may be experienced. 238 Bump __FreeBSD_version to 800081. 239 24020090415: 241 Anticipate overflowing inp_flags - add inp_flags2. 242 This changes most offsets in inpcb, so checking v4 connection 243 state will require a world rebuild. 244 Bump __FreeBSD_version to 800080. 245 24620090415: 247 Add an llentry to struct route and struct route_in6. Modules 248 embedding a struct route will need to be recompiled. 249 Bump __FreeBSD_version to 800079. 250 25120090414: 252 The size of rt_metrics_lite and by extension rtentry has changed. 253 Networking administration apps will need to be recompiled. 254 The route command now supports show as an alias for get, weighting 255 of routes, sticky and nostick flags to alter the behavior of stateful 256 load balancing. 257 Bump __FreeBSD_version to 800078. 258 25920090408: 260 Do not use Giant for kbdmux(4) locking. This is wrong and 261 apparently causing more problems than it solves. This will 262 re-open the issue where interrupt handlers may race with 263 kbdmux(4) in polling mode. Typical symptoms include (but 264 not limited to) duplicated and/or missing characters when 265 low level console functions (such as gets) are used while 266 interrupts are enabled (for example geli password prompt, 267 mountroot prompt etc.). Disabling kbdmux(4) may help. 268 26920090407: 270 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 271 kernel modules referencing any of the above need to be recompiled. 272 Bump __FreeBSD_version to 800075. 273 27420090320: 275 GEOM_PART has become the default partition slicer for storage devices, 276 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 277 introduces some changes: 278 279 MSDOS/EBR: the devices created from MSDOS extended partition entries 280 (EBR) can be named differently than with GEOM_MBR and are now symlinks 281 to devices with offset-based names. fstabs may need to be modified. 282 283 BSD: the "geometry does not match label" warning is harmless in most 284 cases but it points to problems in file system misalignment with 285 disk geometry. The "c" partition is now implicit, covers the whole 286 top-level drive and cannot be (mis)used by users. 287 288 General: Kernel dumps are now not allowed to be written to devices 289 whose partition types indicate they are meant to be used for file 290 systems (or, in case of MSDOS partitions, as something else than 291 the "386BSD" type). 292 293 Most of these changes date approximately from 200812. 294 29520090319: 296 The uscanner(4) driver has been removed from the kernel. This follows 297 Linux removing theirs in 2.6 and making libusb the default interface 298 (supported by sane). 299 30020090319: 301 The multicast forwarding code has been cleaned up. netstat(1) 302 only relies on KVM now for printing bandwidth upcall meters. 303 The IPv4 and IPv6 modules are split into ip_mroute_mod and 304 ip6_mroute_mod respectively. The config(5) options for statically 305 compiling this code remain the same, i.e. 'options MROUTING'. 306 30720090315: 308 Support for the IFF_NEEDSGIANT network interface flag has been 309 removed, which means that non-MPSAFE network device drivers are no 310 longer supported. In particular, if_ar, if_sr, and network device 311 drivers from the old (legacy) USB stack can no longer be built or 312 used. 313 31420090313: 315 POSIX.1 Native Language Support (NLS) has been enabled in libc and 316 a bunch of new language catalog files have also been added. 317 This means that some common libc messages are now localized and 318 they depend on the LC_MESSAGES environmental variable. 319 32020090313: 321 The k8temp(4) driver has been renamed to amdtemp(4) since 322 support for K10 and K11 CPU families was added. 323 32420090309: 325 IGMPv3 and Source-Specific Multicast (SSM) have been merged 326 to the IPv4 stack. VIMAGE hooks are in but not yet used. 327 328 For kernel developers, the most important changes are that the 329 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 330 and this lock has been downgraded to a non-recursive mutex. 331 332 Transport protocols (UDP, Raw IP) are now responsible for filtering 333 inbound multicast traffic according to group membership and source 334 filters. The imo_multicast_filter() KPI exists for this purpose. 335 Transports which do not use multicast (SCTP, TCP) already reject 336 multicast by default. Forwarding and receive performance may improve 337 as a mutex acquisition is no longer needed in the ip_input() 338 low-level input path. in_addmulti() and in_delmulti() are shimmed 339 to new KPIs which exist to support SSM in-kernel. 340 341 For application developers, it is recommended that loopback of 342 multicast datagrams be disabled for best performance, as this 343 will still cause the lock to be taken for each looped-back 344 datagram transmission. The net.inet.ip.mcast.loop sysctl may 345 be tuned to 0 to disable loopback by default; it defaults to 1 346 to preserve the existing behaviour. 347 348 For systems administrators, to obtain best performance with 349 multicast reception and multiple groups, it is always recommended 350 that a card with a suitably precise hash filter is used. Hash 351 collisions will still result in the lock being taken within the 352 transport protocol input path to check group membership. 353 354 If deploying FreeBSD in an environment with IGMP snooping switches, 355 it is recommended that the net.inet.igmp.sendlocal sysctl remain 356 enabled; this forces 224.0.0.0/24 group membership to be announced 357 via IGMP. 358 359 The size of 'struct igmpstat' has changed; netstat needs to be 360 recompiled to reflect this. 361 Bump __FreeBSD_version to 800070. 362 36320090309: 364 libusb20.so.1 is now installed as libusb.so.1 and the ports system 365 updated to use it. This requires a buildworld/installworld in order to 366 update the library and dependencies (usbconfig, etc). Its advisable to 367 rebuild all ports which uses libusb. More specific directions are given 368 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 369 libusb are no longer required and can be removed. 370 37120090302: 372 A workaround is committed to allow the creation of System V shared 373 memory segment of size > 2 GB on the 64-bit architectures. 374 Due to a limitation of the existing ABI, the shm_segsz member 375 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 376 wrong for large segments. Note that limits must be explicitly 377 raised to allow such segments to be created. 378 37920090301: 380 The layout of struct ifnet has changed, requiring a rebuild of all 381 network device driver modules. 382 38320090227: 384 The /dev handling for the new USB stack has changed, a 385 buildworld/installworld is required for libusb20. 386 38720090223: 388 The new USB2 stack has now been permanently moved in and all kernel and 389 module names reverted to their previous values (eg, usb, ehci, ohci, 390 ums, ...). The old usb stack can be compiled in by prefixing the name 391 with the letter 'o', the old usb modules have been removed. 392 Updating entry 20090216 for xorg and 20090215 for libmap may still 393 apply. 394 39520090217: 396 The rc.conf(5) option if_up_delay has been renamed to 397 defaultroute_delay to better reflect its purpose. If you have 398 customized this setting in /etc/rc.conf you need to update it to 399 use the new name. 400 40120090216: 402 xorg 7.4 wants to configure its input devices via hald which does not 403 yet work with USB2. If the keyboard/mouse does not work in xorg then 404 add 405 Option "AllowEmptyInput" "off" 406 to your ServerLayout section. This will cause X to use the configured 407 kbd and mouse sections from your xorg.conf. 408 40920090215: 410 The GENERIC kernels for all architectures now default to the new USB2 411 stack. No kernel config options or code have been removed so if a 412 problem arises please report it and optionally revert to the old USB 413 stack. If you are loading USB kernel modules or have a custom kernel 414 that includes GENERIC then ensure that usb names are also changed over, 415 eg uftdi -> usb2_serial_ftdi. 416 417 Older programs linked against the ports libusb 0.1 need to be 418 redirected to the new stack's libusb20. /etc/libmap.conf can 419 be used for this: 420 # Map old usb library to new one for usb2 stack 421 libusb-0.1.so.8 libusb20.so.1 422 42320090203: 424 The ichsmb(4) driver has been changed to require SMBus slave 425 addresses be left-justified (xxxxxxx0b) rather than right-justified. 426 All of the other SMBus controller drivers require left-justified 427 slave addresses, so this change makes all the drivers provide the 428 same interface. 429 43020090201: 431 INET6 statistics (struct ip6stat) was updated. 432 netstat(1) needs to be recompiled. 433 43420090119: 435 NTFS has been removed from GENERIC kernel on amd64 to match 436 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 437 will load ntfs.ko module automatically when NTFS support is 438 actually needed, unless ntfs.ko is not installed or security 439 level prohibits loading kernel modules. If either is the case, 440 "options NTFS" has to be added into kernel config. 441 44220090115: 443 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 444 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 445 800061. User space tools that rely on the size of struct tcpcb in 446 tcp_var.h (e.g. sockstat) need to be recompiled. 447 44820081225: 449 ng_tty(4) module updated to match the new TTY subsystem. 450 Due to API change, user-level applications must be updated. 451 New API support added to mpd5 CVS and expected to be present 452 in next mpd5.3 release. 453 45420081219: 455 With __FreeBSD_version 800060 the makefs tool is part of 456 the base system (it was a port). 457 45820081216: 459 The afdata and ifnet locks have been changed from mutexes to 460 rwlocks, network modules will need to be re-compiled. 461 46220081214: 463 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 464 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 465 The new code reduced struct rtentry{} by 16 bytes on 32-bit 466 architecture and 40 bytes on 64-bit architecture. The userland 467 applications "arp" and "ndp" have been updated accordingly. 468 The output from "netstat -r" shows only routing entries and 469 none of the L2 information. 470 47120081130: 472 __FreeBSD_version 800057 marks the switchover from the 473 binary ath hal to source code. Users must add the line: 474 475 options AH_SUPPORT_AR5416 476 477 to their kernel config files when specifying: 478 479 device ath_hal 480 481 The ath_hal module no longer exists; the code is now compiled 482 together with the driver in the ath module. It is now 483 possible to tailor chip support (i.e. reduce the set of chips 484 and thereby the code size); consult ath_hal(4) for details. 485 48620081121: 487 __FreeBSD_version 800054 adds memory barriers to 488 <machine/atomic.h>, new interfaces to ifnet to facilitate 489 multiple hardware transmit queues for cards that support 490 them, and a lock-less ring-buffer implementation to 491 enable drivers to more efficiently manage queueing of 492 packets. 493 49420081117: 495 A new version of ZFS (version 13) has been merged to -HEAD. 496 This version has zpool attribute "listsnapshots" off by 497 default, which means "zfs list" does not show snapshots, 498 and is the same as Solaris behavior. 499 50020081028: 501 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 502 50320081009: 504 The uhci, ohci, ehci and slhci USB Host controller drivers have 505 been put into separate modules. If you load the usb module 506 separately through loader.conf you will need to load the 507 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 508 controller add the following to loader.conf: 509 510 uhci_load="YES" 511 ehci_load="YES" 512 51320081009: 514 The ABI used by the PMC toolset has changed. Please keep 515 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 516 sync. 517 51820080820: 519 The TTY subsystem of the kernel has been replaced by a new 520 implementation, which provides better scalability and an 521 improved driver model. Most common drivers have been migrated to 522 the new TTY subsystem, while others have not. The following 523 drivers have not yet been ported to the new TTY layer: 524 525 PCI/ISA: 526 cy, digi, rc, rp, sio 527 528 USB: 529 ubser, ucycom 530 531 Line disciplines: 532 ng_h4, ng_tty, ppp, sl, snp 533 534 Adding these drivers to your kernel configuration file shall 535 cause compilation to fail. 536 53720080818: 538 ntpd has been upgraded to 4.2.4p5. 539 54020080801: 541 OpenSSH has been upgraded to 5.1p1. 542 543 For many years, FreeBSD's version of OpenSSH preferred DSA 544 over RSA for host and user authentication keys. With this 545 upgrade, we've switched to the vendor's default of RSA over 546 DSA. This may cause upgraded clients to warn about unknown 547 host keys even for previously known hosts. Users should 548 follow the usual procedure for verifying host keys before 549 accepting the RSA key. 550 551 This can be circumvented by setting the "HostKeyAlgorithms" 552 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 553 command line. 554 555 Please note that the sequence of keys offered for 556 authentication has been changed as well. You may want to 557 specify IdentityFile in a different order to revert this 558 behavior. 559 56020080713: 561 The sio(4) driver has been removed from the i386 and amd64 562 kernel configuration files. This means uart(4) is now the 563 default serial port driver on those platforms as well. 564 565 To prevent collisions with the sio(4) driver, the uart(4) driver 566 uses different names for its device nodes. This means the 567 onboard serial port will now most likely be called "ttyu0" 568 instead of "ttyd0". You may need to reconfigure applications to 569 use the new device names. 570 571 When using the serial port as a boot console, be sure to update 572 /boot/device.hints and /etc/ttys before booting the new kernel. 573 If you forget to do so, you can still manually specify the hints 574 at the loader prompt: 575 576 set hint.uart.0.at="isa" 577 set hint.uart.0.port="0x3F8" 578 set hint.uart.0.flags="0x10" 579 set hint.uart.0.irq="4" 580 boot -s 581 58220080609: 583 The gpt(8) utility has been removed. Use gpart(8) to partition 584 disks instead. 585 58620080603: 587 The version that Linuxulator emulates was changed from 2.4.2 588 to 2.6.16. If you experience any problems with Linux binaries 589 please try to set sysctl compat.linux.osrelease to 2.4.2 and 590 if it fixes the problem contact emulation mailing list. 591 59220080525: 593 ISDN4BSD (I4B) was removed from the src tree. You may need to 594 update a your kernel configuration and remove relevant entries. 595 59620080509: 597 I have checked in code to support multiple routing tables. 598 See the man pages setfib(1) and setfib(2). 599 This is a hopefully backwards compatible version, 600 but to make use of it you need to compile your kernel 601 with options ROUTETABLES=2 (or more up to 16). 602 60320080420: 604 The 802.11 wireless support was redone to enable multi-bss 605 operation on devices that are capable. The underlying device 606 is no longer used directly but instead wlanX devices are 607 cloned with ifconfig. This requires changes to rc.conf files. 608 For example, change: 609 ifconfig_ath0="WPA DHCP" 610 to 611 wlans_ath0=wlan0 612 ifconfig_wlan0="WPA DHCP" 613 see rc.conf(5) for more details. In addition, mergemaster of 614 /etc/rc.d is highly recommended. Simultaneous update of userland 615 and kernel wouldn't hurt either. 616 617 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 618 modules were merged into the base wlan module. All references 619 to these modules (e.g. in kernel config files) must be removed. 620 62120080408: 622 psm(4) has gained write(2) support in native operation level. 623 Arbitrary commands can be written to /dev/psm%d and status can 624 be read back from it. Therefore, an application is responsible 625 for status validation and error recovery. It is a no-op in 626 other operation levels. 627 62820080312: 629 Support for KSE threading has been removed from the kernel. To 630 run legacy applications linked against KSE libmap.conf may 631 be used. The following libmap.conf may be used to ensure 632 compatibility with any prior release: 633 634 libpthread.so.1 libthr.so.1 635 libpthread.so.2 libthr.so.2 636 libkse.so.3 libthr.so.3 637 63820080301: 639 The layout of struct vmspace has changed. This affects libkvm 640 and any executables that link against libkvm and use the 641 kvm_getprocs() function. In particular, but not exclusively, 642 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 643 The effects are minimal, but it's advisable to upgrade world 644 nonetheless. 645 64620080229: 647 The latest em driver no longer has support in it for the 648 82575 adapter, this is now moved to the igb driver. The 649 split was done to make new features that are incompatible 650 with older hardware easier to do. 651 65220080220: 653 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 654 likewise the kernel option is now GEOM_LINUX_LVM. 655 65620080211: 657 The default NFS mount mode has changed from UDP to TCP for 658 increased reliability. If you rely on (insecurely) NFS 659 mounting across a firewall you may need to update your 660 firewall rules. 661 66220080208: 663 Belatedly note the addition of m_collapse for compacting 664 mbuf chains. 665 66620080126: 667 The fts(3) structures have been changed to use adequate 668 integer types for their members and so to be able to cope 669 with huge file trees. The old fts(3) ABI is preserved 670 through symbol versioning in libc, so third-party binaries 671 using fts(3) should still work, although they will not take 672 advantage of the extended types. At the same time, some 673 third-party software might fail to build after this change 674 due to unportable assumptions made in its source code about 675 fts(3) structure members. Such software should be fixed 676 by its vendor or, in the worst case, in the ports tree. 677 FreeBSD_version 800015 marks this change for the unlikely 678 case that a portable fix is impossible. 679 68020080123: 681 To upgrade to -current after this date, you must be running 682 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 683 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 684 68520071128: 686 The ADAPTIVE_GIANT kernel option has been retired because its 687 functionality is the default now. 688 68920071118: 690 The AT keyboard emulation of sunkbd(4) has been turned on 691 by default. In order to make the special symbols of the Sun 692 keyboards driven by sunkbd(4) work under X these now have 693 to be configured the same way as Sun USB keyboards driven 694 by ukbd(4) (which also does AT keyboard emulation), f.e.: 695 696 Option "XkbLayout" "us" 697 Option "XkbRules" "xorg" 698 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 699 70020071024: 701 It has been decided that it is desirable to provide ABI 702 backwards compatibility to the FreeBSD 4/5/6 versions of the 703 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 704 broken with the introduction of PCI domain support (see the 705 20070930 entry). Unfortunately, this required the ABI of 706 PCIOCGETCONF to be broken again in order to be able to 707 provide backwards compatibility to the old version of that 708 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 709 again. As for prominent ports this affects neither pciutils 710 nor xorg-server this time, the hal port needs to be rebuilt 711 however. 712 71320071020: 714 The misnamed kthread_create() and friends have been renamed 715 to kproc_create() etc. Many of the callers already 716 used kproc_start().. 717 I will return kthread_create() and friends in a while 718 with implementations that actually create threads, not procs. 719 Renaming corresponds with version 800002. 720 72120071010: 722 RELENG_7 branched. 723 72420071009: 725 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 726 WITHOUT_LIBTHR are set. 727 72820070930: 729 The PCI code has been made aware of PCI domains. This means that 730 the location strings as used by pciconf(8) etc are now in the 731 following format: pci<domain>:<bus>:<device>[:<function>]. It 732 also means that consumers of <sys/pciio.h> potentially need to 733 be recompiled; this includes the hal and xorg-server ports. 734 73520070928: 736 The caching daemon (cached) was renamed to nscd. nscd.conf 737 configuration file should be used instead of cached.conf and 738 nscd_enable, nscd_pidfile and nscd_flags options should be used 739 instead of cached_enable, cached_pidfile and cached_flags in 740 rc.conf. 741 74220070921: 743 The getfacl(1) utility now prints owning user and group name 744 instead of owning uid and gid in the three line comment header. 745 This is the same behavior as getfacl(1) on Solaris and Linux. 746 74720070704: 748 The new IPsec code is now compiled in using the IPSEC option. The 749 IPSEC option now requires "device crypto" be defined in your kernel 750 configuration. The FAST_IPSEC kernel option is now deprecated. 751 75220070702: 753 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 754 note the changed syntax - keep state is now on by default. Also 755 note the fact that ftp-proxy(8) has been changed from bottom up and 756 has been moved from libexec to usr/sbin. Changes in the ALTQ 757 handling also affect users of IPFW's ALTQ capabilities. 758 75920070701: 760 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 761 only IPsec supported by FreeBSD. The new IPsec stack 762 supports both IPv4 and IPv6. The kernel option will change 763 after the code changes have settled in. For now the kernel 764 option IPSEC is deprecated and FAST_IPSEC is the only option, that 765 will change after some settling time. 766 76720070701: 768 The wicontrol(8) utility has been removed from the base system. wi(4) 769 cards should be configured using ifconfig(8), see the man page for more 770 information. 771 77220070612: 773 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 774 instead of the nve(4) driver. Please update your configuration 775 accordingly. 776 77720070612: 778 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 779 database if it is missing or older than the aliases file. If 780 desired, set the new rc.conf option sendmail_rebuild_aliases 781 to "YES" to restore that functionality. 782 78320070612: 784 The IPv4 multicast socket code has been considerably modified, and 785 moved to the file sys/netinet/in_mcast.c. Initial support for the 786 RFC 3678 Source-Specific Multicast Socket API has been added to 787 the IPv4 network stack. 788 789 Strict multicast and broadcast reception is now the default for 790 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 791 has now been removed. 792 793 The RFC 1724 hack for interface selection has been removed; the use 794 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 795 been added to replace it. Consumers such as routed will soon be 796 updated to reflect this. 797 798 These changes affect users who are running routed(8) or rdisc(8) 799 from the FreeBSD base system on point-to-point or unnumbered 800 interfaces. 801 80220070610: 803 The net80211 layer has changed significantly and all wireless 804 drivers that depend on it need to be recompiled. Further these 805 changes require that any program that interacts with the wireless 806 support in the kernel be recompiled; this includes: ifconfig, 807 wpa_supplicant, hostapd, and wlanstats. Users must also, for 808 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 809 if they use modules for wireless support. These modules implement 810 scanning support for station and ap modes, respectively. Failure 811 to load the appropriate module before marking a wireless interface 812 up will result in a message to the console and the device not 813 operating properly. 814 81520070610: 816 The pam_nologin(8) module ceases to provide an authentication 817 function and starts providing an account management function. 818 Consequent changes to /etc/pam.d should be brought in using 819 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 820 need manual editing as follows. Locate this line (or similar): 821 822 auth required pam_nologin.so no_warn 823 824 and change it according to this example: 825 826 account required pam_nologin.so no_warn 827 828 That is, the first word needs to be changed from "auth" to 829 "account". The new line can be moved to the account section 830 within the file for clarity. Not updating pam.conf(5) files 831 will result in nologin(5) ignored by the respective services. 832 83320070529: 834 The ether_ioctl() function has been synchronized with ioctl(2) 835 and ifnet.if_ioctl. Due to that, the size of one of its arguments 836 has changed on 64-bit architectures. All kernel modules using 837 ether_ioctl() need to be rebuilt on such architectures. 838 83920070516: 840 Improved INCLUDE_CONFIG_FILE support has been introduced to the 841 config(8) utility. In order to take advantage of this new 842 functionality, you are expected to recompile and install 843 src/usr.sbin/config. If you don't rebuild config(8), and your 844 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 845 build will be broken because of a missing "kernconfstring" 846 symbol. 847 84820070513: 849 Symbol versioning is enabled by default. To disable it, use 850 option WITHOUT_SYMVER. It is not advisable to attempt to 851 disable symbol versioning once it is enabled; your installworld 852 will break because a symbol version-less libc will get installed 853 before the install tools. As a result, the old install tools, 854 which previously had symbol dependencies to FBSD_1.0, will fail 855 because the freshly installed libc will not have them. 856 857 The default threading library (providing "libpthread") has been 858 changed to libthr. If you wish to have libkse as your default, 859 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 860 86120070423: 862 The ABI breakage in sendmail(8)'s libmilter has been repaired 863 so it is no longer necessary to recompile mail filters (aka, 864 milters). If you recompiled mail filters after the 20070408 865 note, it is not necessary to recompile them again. 866 86720070417: 868 The new trunk(4) driver has been renamed to lagg(4) as it better 869 reflects its purpose. ifconfig will need to be recompiled. 870 87120070408: 872 sendmail(8) has been updated to version 8.14.1. Mail filters 873 (aka, milters) compiled against the libmilter included in the 874 base operating system should be recompiled. 875 87620070302: 877 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 878 In order to use them one must agree to the respective LICENSE in 879 share/doc/legal and define legal.intel_<name>.license_ack=1 via 880 loader.conf(5) or kenv(1). Make sure to deinstall the now 881 deprecated modules from the respective firmware ports. 882 88320070228: 884 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 885 were removed from FreeBSD's libc. These originally came from INRIA 886 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 887 deprecated in previous releases. 888 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 889 replace it as a more portable (and re-entrant) API. 890 89120070224: 892 To support interrupt filtering a modification to the newbus API 893 has occurred, ABI was broken and __FreeBSD_version was bumped 894 to 700031. Please make sure that your kernel and modules are in 895 sync. For more info: 896 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 897 89820070224: 899 The IPv6 multicast forwarding code may now be loaded into GENERIC 900 kernels by loading the ip_mroute.ko module. This is built into the 901 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 902 set; see src.conf(5) for more information. 903 90420070214: 905 The output of netstat -r has changed. Without -n, we now only 906 print a "network name" without the prefix length if the network 907 address and mask exactly match a Class A/B/C network, and an entry 908 exists in the nsswitch "networks" map. 909 With -n, we print the full unabbreviated CIDR network prefix in 910 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 911 This change is in preparation for changes such as equal-cost 912 multipath, and to more generally assist operational deployment 913 of FreeBSD as a modern IPv4 router. 914 91520070210: 916 PIM has been turned on by default in the IPv4 multicast 917 routing code. The kernel option 'PIM' has now been removed. 918 PIM is now built by default if option 'MROUTING' is specified. 919 It may now be loaded into GENERIC kernels by loading the 920 ip_mroute.ko module. 921 92220070207: 923 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 924 has been removed. Its functionality may be achieved by explicitly 925 configuring gif(4) interfaces and using the 'phyint' keyword in 926 mrouted.conf. 927 XORP does not support source-routed IPv4 multicast tunnels nor the 928 integrated IPIP tunneling, therefore it is not affected by this 929 change. The __FreeBSD_version macro has been bumped to 700030. 930 93120061221: 932 Support for PCI Message Signalled Interrupts has been 933 re-enabled in the bge driver, only for those chips which are 934 believed to support it properly. If there are any problems, 935 MSI can be disabled completely by setting the 936 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 937 in the loader. 938 93920061214: 940 Support for PCI Message Signalled Interrupts has been 941 disabled again in the bge driver. Many revisions of the 942 hardware fail to support it properly. Support can be 943 re-enabled by removing the #define of BGE_DISABLE_MSI in 944 "src/sys/dev/bge/if_bge.c". 945 94620061214: 947 Support for PCI Message Signalled Interrupts has been added 948 to the bge driver. If there are any problems, MSI can be 949 disabled completely by setting the 'hw.pci.enable_msi' and 950 'hw.pci.enable_msix' tunables to 0 in the loader. 951 95220061205: 953 The removal of several facets of the experimental Threading 954 system from the kernel means that the proc and thread structures 955 have changed quite a bit. I suggest all kernel modules that might 956 reference these structures be recompiled.. Especially the 957 linux module. 958 95920061126: 960 Sound infrastructure has been updated with various fixes and 961 improvements. Most of the changes are pretty much transparent, 962 with exceptions of followings: 963 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 964 moved to their own dev sysctl nodes, for example: 965 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 966 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 967 own chardev in the form of "dsp%d.<function>%d", where <function> 968 is p = playback, r = record and v = virtual, respectively. Users 969 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 970 This does not affect those who are using "/dev/dsp". 971 97220061122: 973 geom(4)'s gmirror(8) class metadata structure has been 974 rev'd from v3 to v4. If you update across this point and 975 your metadata is converted for you, you will not be easily 976 able to downgrade since the /boot/kernel.old/geom_mirror.ko 977 kernel module will be unable to read the v4 metadata. You 978 can resolve this by doing from the loader(8) prompt: 979 980 set vfs.root.mountfrom="ufs:/dev/XXX" 981 982 where XXX is the root slice of one of the disks that composed 983 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 984 the array the same way you built it originally. 985 98620061122: 987 The following binaries have been disconnected from the build: 988 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 989 and mount_std. The functionality of these programs has been 990 moved into the mount program. For example, to mount a devfs 991 filesystem, instead of using mount_devfs, use: "mount -t devfs". 992 This does not affect entries in /etc/fstab, since entries in 993 /etc/fstab are always processed with "mount -t fstype". 994 99520061113: 996 Support for PCI Message Signalled Interrupts on i386 and amd64 997 has been added to the kernel and various drivers will soon be 998 updated to use MSI when it is available. If there are any problems, 999 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 1000 and 'hw.pci.enable_msix' tunables to 0 in the loader. 1001 100220061110: 1003 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 1004 The lockmgr object layout has been changed as a result of having 1005 a lock_object embedded in it. As a consequence all file system 1006 kernel modules must be re-compiled. The mutex profiling man page 1007 has not yet been updated to reflect this change. 1008 100920061026: 1010 KSE in the kernel has now been made optional and turned on by 1011 default. Use 'nooption KSE' in your kernel config to turn it 1012 off. All kernel modules *must* be recompiled after this change. 1013 There-after, modules from a KSE kernel should be compatible with 1014 modules from a NOKSE kernel due to the temporary padding fields 1015 added to 'struct proc'. 1016 101720060929: 1018 mrouted and its utilities have been removed from the base system. 1019 102020060927: 1021 Some ioctl(2) command codes have changed. Full backward ABI 1022 compatibility is provided if the "options COMPAT_FREEBSD6" is 1023 present in the kernel configuration file. Make sure to add 1024 this option to your kernel config file, or recompile X.Org 1025 and the rest of ports; otherwise they may refuse to work. 1026 102720060924: 1028 tcpslice has been removed from the base system. 1029 103020060913: 1031 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 1032 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 1033 systat needs to be rebuilt. 1034 103520060903: 1036 libpcap updated to v0.9.4 and tcpdump to v3.9.4 1037 103820060816: 1039 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 1040 for IPFIREWALL_FORWARD is now as it was before when it was first 1041 committed and for years after. The behaviour is now ON. 1042 104320060725: 1044 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 1045 Now it can decrypt files created from different architectures. 1046 Unfortunately, it is no longer able to decrypt a cipher text 1047 generated with an older version on 64 bit architectures. 1048 If you have such a file, you need old utility to decrypt it. 1049 105020060709: 1051 The interface version of the i4b kernel part has changed. So 1052 after updating the kernel sources and compiling a new kernel, 1053 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 1054 be rebuilt, and vice versa. 1055 105620060627: 1057 The XBOX kernel now defaults to the nfe(4) driver instead of 1058 the nve(4) driver. Please update your configuration 1059 accordingly. 1060 106120060514: 1062 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 1063 PCnet family of NICs has been removed. The new le(4) driver serves 1064 as an equivalent but cross-platform replacement with the pcn(4) 1065 driver still providing performance-optimized support for the subset 1066 of AMD Am79C971 PCnet-FAST and greater chips as before. 1067 106820060511: 1069 The machdep.* sysctls and the adjkerntz utility have been 1070 modified a bit. The new adjkerntz utility uses the new 1071 sysctl names and sysctlbyname() calls, so it may be impossible 1072 to run an old /sbin/adjkerntz utility in single-user mode 1073 with a new kernel. Replace the `adjkerntz -i' step before 1074 `make installworld' with: 1075 1076 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1077 1078 and proceed as usual with the rest of the installworld-stage 1079 steps. Otherwise, you risk installing binaries with their 1080 timestamp set several hours in the future, especially if 1081 you are running with local time set to GMT+X hours. 1082 108320060412: 1084 The ip6fw utility has been removed. The behavior provided by 1085 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1086 have been updated to deal with it. There are some rules that 1087 might not migrate cleanly. Use rc.firewall6 as a template to 1088 rewrite rules. 1089 109020060428: 1091 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1092 attachments have been removed. Make sure to configure scc(4) 1093 on sparc64. Note also that by default puc(4) will use uart(4) 1094 and not sio(4) for serial ports because interrupt handling has 1095 been optimized for multi-port serial cards and only uart(4) 1096 implements the interface to support it. 1097 109820060330: 1099 The scc(4) driver replaces puc(4) for Serial Communications 1100 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1101 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1102 configuration to make sure that the serial ports remain 1103 functional. 1104 110520060317: 1106 Most world/kernel related NO_* build options changed names. 1107 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1108 after FreeBSD ports) and should be set in /etc/src.conf 1109 (the src.conf(5) manpage is provided). Full backwards 1110 compatibility is maintained for the time being though it's 1111 highly recommended to start moving old options out of the 1112 system-wide /etc/make.conf file into the new /etc/src.conf 1113 while also properly renaming them. More conversions will 1114 likely follow. Posting to current@: 1115 1116 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1117 111820060305: 1119 The NETSMBCRYPTO kernel option has been retired because its 1120 functionality is always included in NETSMB and smbfs.ko now. 1121 112220060303: 1123 The TDFX_LINUX kernel option was retired and replaced by the 1124 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1125 kernel module. Loading it alone should suffice to get 3dfx support 1126 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1127 its dependencies. 1128 112920060204: 1130 The 'audit' group was added to support the new auditing functionality 1131 in the base system. Be sure to follow the directions for updating, 1132 including the requirement to run mergemaster -p. 1133 113420060201: 1135 The kernel ABI to file system modules was changed on i386. 1136 Please make sure that your kernel and modules are in sync. 1137 113820060118: 1139 This actually occured some time ago, but installing the kernel 1140 now also installs a bunch of symbol files for the kernel modules. 1141 This increases the size of /boot/kernel to about 67Mbytes. You 1142 will need twice this if you will eventually back this up to kernel.old 1143 on your next install. 1144 If you have a shortage of room in your root partition, you should add 1145 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1146 to your /etc/make.conf. 1147 114820060113: 1149 libc's malloc implementation has been replaced. This change has the 1150 potential to uncover application bugs that previously went unnoticed. 1151 See the malloc(3) manual page for more details. 1152 115320060112: 1154 The generic netgraph(4) cookie has been changed. If you upgrade 1155 kernel passing this point, you also need to upgrade userland 1156 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1157 115820060106: 1159 si(4)'s device files now contain the unit number. 1160 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1161 116220060106: 1163 The kernel ABI was mostly destroyed due to a change in the size 1164 of struct lock_object which is nested in other structures such 1165 as mutexes which are nested in all sorts of other structures. 1166 Make sure your kernel and modules are in sync. 1167 116820051231: 1169 The page coloring algorithm in the VM subsystem was converted 1170 from tuning with kernel options to autotuning. Please remove 1171 any PQ_* option except PQ_NOOPT from your kernel config. 1172 117320051211: 1174 The net80211-related tools in the tools/tools/ath directory 1175 have been moved to tools/tools/net80211 and renamed with a 1176 "wlan" prefix. Scripts that use them should be adjusted 1177 accordingly. 1178 117920051202: 1180 Scripts in the local_startup directories (as defined in 1181 /etc/defaults/rc.conf) that have the new rc.d semantics will 1182 now be run as part of the base system rcorder. If there are 1183 errors or problems with one of these local scripts, it could 1184 cause boot problems. If you encounter such problems, boot in 1185 single user mode, remove that script from the */rc.d directory. 1186 Please report the problem to the port's maintainer, and the 1187 freebsd-ports@freebsd.org mailing list. 1188 118920051129: 1190 The nodev mount option was deprecated in RELENG_6 (where it 1191 was a no-op), and is now unsupported. If you have nodev or dev listed 1192 in /etc/fstab, remove it, otherwise it will result in a mount error. 1193 119420051129: 1195 ABI between ipfw(4) and ipfw(8) has been changed. You need 1196 to rebuild ipfw(8) when rebuilding kernel. 1197 119820051108: 1199 rp(4)'s device files now contain the unit number. 1200 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1201 120220051029: 1203 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1204 Its /etc/rc.conf.d configuration file has been `ppp' from 1205 the beginning, and hence there is no need to touch it. 1206 120720051014: 1208 Now most modules get their build-time options from the kernel 1209 configuration file. A few modules still have fixed options 1210 due to their non-conformant implementation, but they will be 1211 corrected eventually. You may need to review the options of 1212 the modules in use, explicitly specify the non-default options 1213 in the kernel configuration file, and rebuild the kernel and 1214 modules afterwards. 1215 121620051001: 1217 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1218 to turn polling(4) on your interfaces. 1219 122020050927: 1221 The old bridge(4) implementation was retired. The new 1222 if_bridge(4) serves as a full functional replacement. 1223 122420050722: 1225 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1226 to conform to POSIX-2001. This change broke an ABI 1227 compatibility on 64 bit architecture. You have to recompile 1228 userland programs that use getaddrinfo(3) on 64 bit 1229 architecture. 1230 123120050711: 1232 RELENG_6 branched here. 1233 123420050629: 1235 The pccard_ifconfig rc.conf variable has been removed and a new 1236 variable, ifconfig_DEFAULT has been introduced. Unlike 1237 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1238 do not have ifconfig_ifn entries rather than just those in 1239 removable_interfaces. 1240 124120050616: 1242 Some previous versions of PAM have permitted the use of 1243 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1244 to third party PAM modules in /usr/local/lib. A change has been 1245 made to require the use of absolute paths in order to avoid 1246 ambiguity and dependence on library path configuration, which may 1247 affect existing configurations. 1248 124920050610: 1250 Major changes to network interface API. All drivers must be 1251 recompiled. Drivers not in the base system will need to be 1252 updated to the new APIs. 1253 125420050609: 1255 Changes were made to kinfo_proc in sys/user.h. Please recompile 1256 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1257 will not behave correctly. 1258 1259 The API and ABI for hwpmc(4) have changed with the addition 1260 of sampling support. Please recompile lib/libpmc(3) and 1261 usr.sbin/{pmcstat,pmccontrol}. 1262 126320050606: 1264 The OpenBSD dhclient was imported in place of the ISC dhclient 1265 and the network interface configuration scripts were updated 1266 accordingly. If you use DHCP to configure your interfaces, you 1267 must now run devd. Also, DNS updating was lost so you will need 1268 to find a workaround if you use this feature. 1269 1270 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1271 sure to run mergemaster -p (like you are supposed to do every time 1272 anyway). 1273 127420050605: 1275 if_bridge was added to the tree. This has changed struct ifnet. 1276 Please recompile userland and all network related modules. 1277 127820050603: 1279 The n_net of a struct netent was changed to an uint32_t, and 1280 1st argument of getnetbyaddr() was changed to an uint32_t, to 1281 conform to POSIX-2001. These changes broke an ABI 1282 compatibility on 64 bit architecture. With these changes, 1283 shlib major of libpcap was bumped. You have to recompile 1284 userland programs that use getnetbyaddr(3), getnetbyname(3), 1285 getnetent(3) and/or libpcap on 64 bit architecture. 1286 128720050528: 1288 Kernel parsing of extra options on '#!' first lines of shell 1289 scripts has changed. Lines with multiple options likely will 1290 fail after this date. For full details, please see 1291 http://people.freebsd.org/~gad/Updating-20050528.txt 1292 129320050503: 1294 The packet filter (pf) code has been updated to OpenBSD 3.7 1295 Please note the changed anchor syntax and the fact that 1296 authpf(8) now needs a mounted fdescfs(5) to function. 1297 129820050415: 1299 The NO_MIXED_MODE kernel option has been removed from the i386 1300 amd64 platforms as its use has been superceded by the new local 1301 APIC timer code. Any kernel config files containing this option 1302 should be updated. 1303 130420050227: 1305 The on-disk format of LC_CTYPE files was changed to be machine 1306 independent. Please make sure NOT to use NO_CLEAN buildworld 1307 when crossing this point. Crossing this point also requires 1308 recompile or reinstall of all locale depended packages. 1309 131020050225: 1311 The ifi_epoch member of struct if_data has been changed to 1312 contain the uptime at which the interface was created or the 1313 statistics zeroed rather then the wall clock time because 1314 wallclock time may go backwards. This should have no impact 1315 unless an snmp implementation is using this value (I know of 1316 none at this point.) 1317 131820050224: 1319 The acpi_perf and acpi_throttle drivers are now part of the 1320 acpi(4) main module. They are no longer built separately. 1321 132220050223: 1323 The layout of struct image_params has changed. You have to 1324 recompile all compatibility modules (linux, svr4, etc) for use 1325 with the new kernel. 1326 132720050223: 1328 The p4tcc driver has been merged into cpufreq(4). This makes 1329 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1330 compile in "device cpufreq" to restore this functionality. 1331 133220050220: 1333 The responsibility of recomputing the file system summary of 1334 a SoftUpdates-enabled dirty volume has been transferred to the 1335 background fsck. A rebuild of fsck(8) utility is recommended 1336 if you have updated the kernel. 1337 1338 To get the old behavior (recompute file system summary at mount 1339 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1340 mounting the new volume. 1341 134220050206: 1343 The cpufreq import is complete. As part of this, the sysctls for 1344 acpi(4) throttling have been removed. The power_profile script 1345 has been updated, so you can use performance/economy_cpu_freq in 1346 rc.conf(5) to set AC on/offline cpu frequencies. 1347 134820050206: 1349 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1350 requires recompiling libnetgraph and userland netgraph utilities. 1351 135220050114: 1353 Support for abbreviated forms of a number of ipfw options is 1354 now deprecated. Warnings are printed to stderr indicating the 1355 correct full form when a match occurs. Some abbreviations may 1356 be supported at a later date based on user feedback. To be 1357 considered for support, abbreviations must be in use prior to 1358 this commit and unlikely to be confused with current key words. 1359 136020041221: 1361 By a popular demand, a lot of NOFOO options were renamed 1362 to NO_FOO (see bsd.compat.mk for a full list). The old 1363 spellings are still supported, but will cause annoying 1364 warnings on stderr. Make sure you upgrade properly (see 1365 the COMMON ITEMS: section later in this file). 1366 136720041219: 1368 Auto-loading of ancillary wlan modules such as wlan_wep has 1369 been temporarily disabled; you need to statically configure 1370 the modules you need into your kernel or explicitly load them 1371 prior to use. Specifically, if you intend to use WEP encryption 1372 with an 802.11 device load/configure wlan_wep; if you want to 1373 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1374 and wlan_xauth as required. 1375 137620041213: 1377 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1378 (``enable lqr''), older versions would revert to LCP ECHO mode on 1379 negotiation failure. Now, ``enable echo'' is required for this 1380 behaviour. The ppp version number has been bumped to 3.4.2 to 1381 reflect the change. 1382 138320041201: 1384 The wlan support has been updated to split the crypto support 1385 into separate modules. For static WEP you must configure the 1386 wlan_wep module in your system or build and install the module 1387 in place where it can be loaded (the kernel will auto-load 1388 the module when a wep key is configured). 1389 139020041201: 1391 The ath driver has been updated to split the tx rate control 1392 algorithm into a separate module. You need to include either 1393 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1394 139520041116: 1396 Support for systems with an 80386 CPU has been removed. Please 1397 use FreeBSD 5.x or earlier on systems with an 80386. 1398 139920041110: 1400 We have had a hack which would mount the root filesystem 1401 R/W if the device were named 'md*'. As part of the vnode 1402 work I'm doing I have had to remove this hack. People 1403 building systems which use preloaded MD root filesystems 1404 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1405 their /etc/rc scripts. 1406 140720041104: 1408 FreeBSD 5.3 shipped here. 1409 141020041102: 1411 The size of struct tcpcb has changed again due to the removal 1412 of RFC1644 T/TCP. You have to recompile userland programs that 1413 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1414 141520041022: 1416 The size of struct tcpcb has changed. You have to recompile 1417 userland programs that read kmem for tcp sockets directly 1418 (netstat, sockstat, etc.) 1419 142020041016: 1421 RELENG_5 branched here. For older entries, please see updating 1422 in the RELENG_5 branch. 1423 1424COMMON ITEMS: 1425 1426 General Notes 1427 ------------- 1428 Avoid using make -j when upgrading. From time to time in the 1429 past there have been problems using -j with buildworld and/or 1430 installworld. This is especially true when upgrading between 1431 "distant" versions (eg one that cross a major release boundary 1432 or several minor releases, or when several months have passed 1433 on the -current branch). 1434 1435 Sometimes, obscure build problems are the result of environment 1436 poisoning. This can happen because the make utility reads its 1437 environment when searching for values for global variables. 1438 To run your build attempts in an "environmental clean room", 1439 prefix all make commands with 'env -i '. See the env(1) manual 1440 page for more details. 1441 1442 When upgrading from one major version to another it is generally 1443 best to upgrade to the latest code in the currently installed branch 1444 first, then do an upgrade to the new branch. This is the best-tested 1445 upgrade path, and has the highest probability of being successful. 1446 Please try this approach before reporting problems with a major 1447 version upgrade. 1448 1449 To build a kernel 1450 ----------------- 1451 If you are updating from a prior version of FreeBSD (even one just 1452 a few days old), you should follow this procedure. It is the most 1453 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1454 1455 make kernel-toolchain 1456 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1457 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1458 1459 To test a kernel once 1460 --------------------- 1461 If you just want to boot a kernel once (because you are not sure 1462 if it works, or if you want to boot a known bad kernel to provide 1463 debugging information) run 1464 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1465 nextboot -k testkernel 1466 1467 To just build a kernel when you know that it won't mess you up 1468 -------------------------------------------------------------- 1469 This assumes you are already running a 5.X system. Replace 1470 ${arch} with the architecture of your machine (e.g. "i386", 1471 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1472 1473 cd src/sys/${arch}/conf 1474 config KERNEL_NAME_HERE 1475 cd ../compile/KERNEL_NAME_HERE 1476 make depend 1477 make 1478 make install 1479 1480 If this fails, go to the "To build a kernel" section. 1481 1482 To rebuild everything and install it on the current system. 1483 ----------------------------------------------------------- 1484 # Note: sometimes if you are running current you gotta do more than 1485 # is listed here if you are upgrading from a really old current. 1486 1487 <make sure you have good level 0 dumps> 1488 make buildworld 1489 make kernel KERNCONF=YOUR_KERNEL_HERE 1490 [1] 1491 <reboot in single user> [3] 1492 mergemaster -p [5] 1493 make installworld 1494 make delete-old 1495 mergemaster [4] 1496 <reboot> 1497 1498 1499 To cross-install current onto a separate partition 1500 -------------------------------------------------- 1501 # In this approach we use a separate partition to hold 1502 # current's root, 'usr', and 'var' directories. A partition 1503 # holding "/", "/usr" and "/var" should be about 2GB in 1504 # size. 1505 1506 <make sure you have good level 0 dumps> 1507 <boot into -stable> 1508 make buildworld 1509 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1510 <maybe newfs current's root partition> 1511 <mount current's root partition on directory ${CURRENT_ROOT}> 1512 make installworld DESTDIR=${CURRENT_ROOT} 1513 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1514 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1515 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1516 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1517 <reboot into current> 1518 <do a "native" rebuild/install as described in the previous section> 1519 <maybe install compatibility libraries from ports/misc/compat*> 1520 <reboot> 1521 1522 1523 To upgrade in-place from 5.x-stable to current 1524 ---------------------------------------------- 1525 <make sure you have good level 0 dumps> 1526 make buildworld [9] 1527 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1528 [1] 1529 <reboot in single user> [3] 1530 mergemaster -p [5] 1531 make installworld 1532 make delete-old 1533 mergemaster -i [4] 1534 <reboot> 1535 1536 Make sure that you've read the UPDATING file to understand the 1537 tweaks to various things you need. At this point in the life 1538 cycle of current, things change often and you are on your own 1539 to cope. The defaults can also change, so please read ALL of 1540 the UPDATING entries. 1541 1542 Also, if you are tracking -current, you must be subscribed to 1543 freebsd-current@freebsd.org. Make sure that before you update 1544 your sources that you have read and understood all the recent 1545 messages there. If in doubt, please track -stable which has 1546 much fewer pitfalls. 1547 1548 [1] If you have third party modules, such as vmware, you 1549 should disable them at this point so they don't crash your 1550 system on reboot. 1551 1552 [3] From the bootblocks, boot -s, and then do 1553 fsck -p 1554 mount -u / 1555 mount -a 1556 cd src 1557 adjkerntz -i # if CMOS is wall time 1558 Also, when doing a major release upgrade, it is required that 1559 you boot into single user mode to do the installworld. 1560 1561 [4] Note: This step is non-optional. Failure to do this step 1562 can result in a significant reduction in the functionality of the 1563 system. Attempting to do it by hand is not recommended and those 1564 that pursue this avenue should read this file carefully, as well 1565 as the archives of freebsd-current and freebsd-hackers mailing lists 1566 for potential gotchas. 1567 1568 [5] Usually this step is a noop. However, from time to time 1569 you may need to do this if you get unknown user in the following 1570 step. It never hurts to do it all the time. You may need to 1571 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1572 install) after the buildworld before this step if you last updated 1573 from current before 20020224 or from -stable before 20020408. 1574 1575 [8] In order to have a kernel that can run the 4.x binaries 1576 needed to do an installworld, you must include the COMPAT_FREEBSD4 1577 option in your kernel. Failure to do so may leave you with a system 1578 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1579 is required to run the 5.x binaries on more recent kernels. 1580 1581 Make sure that you merge any new devices from GENERIC since the 1582 last time you updated your kernel config file. 1583 1584 [9] When checking out sources, you must include the -P flag to have 1585 cvs prune empty directories. 1586 1587 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1588 "?=" instead of the "=" assignment operator, so that buildworld can 1589 override the CPUTYPE if it needs to. 1590 1591 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1592 not on the command line, or in /etc/make.conf. buildworld will 1593 warn if it is improperly defined. 1594FORMAT: 1595 1596This file contains a list, in reverse chronological order, of major 1597breakages in tracking -current. Not all things will be listed here, 1598and it only starts on October 16, 2004. Updating files can found in 1599previous releases if your system is older than this. 1600 1601Copyright information: 1602 1603Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1604 1605Redistribution, publication, translation and use, with or without 1606modification, in full or in part, in any form or format of this 1607document are permitted without further permission from the author. 1608 1609THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1610IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1611WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1612DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1613INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1614(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1615SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1616HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1617STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1618IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1619POSSIBILITY OF SUCH DAMAGE. 1620 1621If you find this document useful, and you want to, you may buy the 1622author a beer. 1623 1624Contact Warner Losh if you have any questions about your use of 1625this document. 1626 1627$FreeBSD: head/UPDATING 195064 2009-06-26 17:50:52Z jhb $ 1628