UPDATING revision 193138
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 2520090530: 26 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose 27 is no more valid. 28 2920090530: 30 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 31 Bump __FreeBSD_version to 800094. 32 3320090529: 34 Add mnt_xflag field to 'struct mount'. File system modules 35 need to be rebuilt. 36 Bump __FreeBSD_version to 800093. 37 3820090528: 39 The compiling option ADAPTIVE_SX has been retired while it has been 40 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 41 The KPI for sx_init_flags() changes as accepting flags: 42 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 43 has been introduced in order to handle the reversed logic. 44 Bump __FreeBSD_version to 800092. 45 4620090527: 47 Add support for hierarchical jails. Remove global securelevel. 48 Bump __FreeBSD_version to 800091. 49 5020090523: 51 The layout of struct vnet_net has changed, therefore modules 52 need to be rebuilt. 53 Bump __FreeBSD_version to 800090. 54 5520090523: 56 The newly imported zic(8) produces a new format in the 57 output. Please run tzsetup(8) to install the newly created 58 data to /etc/localtime. 59 6020090520: 61 The sysctl tree for the usb stack has renamed from hw.usb2.* to 62 hw.usb.* and is now consistent again with previous releases. 63 6420090520: 65 802.11 monitor mode support was revised and driver api's 66 were changed. Drivers dependent on net80211 now support 67 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 68 user-visible data structures were changed but applications 69 that use DLT_IEEE802_11 may require changes. 70 Bump __FreeBSD_version to 800088. 71 7220090430: 73 The layout of the following structs has changed: sysctl_oid, 74 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 75 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 76 panics may be experienced. World rebuild is required for 77 correctly checking networking state from userland. 78 Bump __FreeBSD_version to 800085. 79 8020090429: 81 MLDv2 and Source-Specific Multicast (SSM) have been merged 82 to the IPv6 stack. VIMAGE hooks are in but not yet used. 83 The implementation of SSM within FreeBSD's IPv6 stack closely 84 follows the IPv4 implementation. 85 86 For kernel developers: 87 88 * The most important changes are that the ip6_output() and 89 ip6_input() paths no longer take the IN6_MULTI_LOCK, 90 and this lock has been downgraded to a non-recursive mutex. 91 92 * As with the changes to the IPv4 stack to support SSM, filtering 93 of inbound multicast traffic must now be performed by transport 94 protocols within the IPv6 stack. This does not apply to TCP and 95 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 96 97 * The KPIs used by IPv6 multicast are similar to those used by 98 the IPv4 stack, with the following differences: 99 * im6o_mc_filter() is analogous to imo_multicast_filter(). 100 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 101 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 102 * IN6_LOOKUP_MULTI() has been deprecated and removed. 103 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 104 for MLDv1 have an additional 'timer' argument which is used to 105 jitter the initial membership report for the solicited-node 106 multicast membership on-link. 107 * This is not strictly needed for MLDv2, which already jitters 108 its report transmissions. However, the 'timer' argument is 109 preserved in case MLDv1 is active on the interface. 110 111 * The KAME linked-list based IPv6 membership implementation has 112 been refactored to use a vector similar to that used by the IPv4 113 stack. 114 Code which maintains a list of its own multicast memberships 115 internally, e.g. carp, has been updated to reflect the new 116 semantics. 117 118 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 119 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 120 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 121 implementation constraint which needs to be addressed in HEAD. 122 123 For application developers: 124 125 * The changes are broadly similar to those made for the IPv4 126 stack. 127 128 * The use of IPv4 and IPv6 multicast socket options on the same 129 socket, using mapped addresses, HAS NOT been tested or supported. 130 131 * There are a number of issues with the implementation of various 132 IPv6 multicast APIs which need to be resolved in the API surface 133 before the implementation is fully compatible with KAME userland 134 use, and these are mostly to do with interface index treatment. 135 136 * The literature available discusses the use of either the delta / ASM 137 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 138 using setsourcefilter(3)/getsourcefilter(3). For more information 139 please refer to RFC 3768, 'Socket Interface Extensions for 140 Multicast Source Filters'. 141 142 * Applications which use the published RFC 3678 APIs should be fine. 143 144 For systems administrators: 145 146 * The mtest(8) utility has been refactored to support IPv6, in 147 addition to IPv4. Interface addresses are no longer accepted 148 as arguments, their names must be used instead. The utility 149 will map the interface name to its first IPv4 address as 150 returned by getifaddrs(3). 151 152 * The ifmcstat(8) utility has also been updated to print the MLDv2 153 endpoint state and source filter lists via sysctl(3). 154 155 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 156 loopback of IPv6 multicast datagrams by default; it defaults to 1 157 to preserve the existing behaviour. Disabling multicast loopback is 158 recommended for optimal system performance. 159 160 * The IPv6 MROUTING code has been changed to examine this sysctl 161 instead of attempting to perform a group lookup before looping 162 back forwarded datagrams. 163 164 Bump __FreeBSD_version to 800084. 165 16620090422: 167 Implement low-level Bluetooth HCI API. 168 Bump __FreeBSD_version to 800083. 169 17020090419: 171 The layout of struct malloc_type, used by modules to register new 172 memory allocation types, has changed. Most modules will need to 173 be rebuilt or panics may be experienced. 174 Bump __FreeBSD_version to 800081. 175 17620090415: 177 Anticipate overflowing inp_flags - add inp_flags2. 178 This changes most offsets in inpcb, so checking v4 connection 179 state will require a world rebuild. 180 Bump __FreeBSD_version to 800080. 181 18220090415: 183 Add an llentry to struct route and struct route_in6. Modules 184 embedding a struct route will need to be recompiled. 185 Bump __FreeBSD_version to 800079. 186 18720090414: 188 The size of rt_metrics_lite and by extension rtentry has changed. 189 Networking administration apps will need to be recompiled. 190 The route command now supports show as an alias for get, weighting 191 of routes, sticky and nostick flags to alter the behavior of stateful 192 load balancing. 193 Bump __FreeBSD_version to 800078. 194 19520090408: 196 Do not use Giant for kbdmux(4) locking. This is wrong and 197 apparently causing more problems than it solves. This will 198 re-open the issue where interrupt handlers may race with 199 kbdmux(4) in polling mode. Typical symptoms include (but 200 not limited to) duplicated and/or missing characters when 201 low level console functions (such as gets) are used while 202 interrupts are enabled (for example geli password prompt, 203 mountroot prompt etc.). Disabling kbdmux(4) may help. 204 20520090407: 206 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 207 kernel modules referencing any of the above need to be recompiled. 208 Bump __FreeBSD_version to 800075. 209 21020090320: 211 GEOM_PART has become the default partition slicer for storage devices, 212 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 213 introduces some changes: 214 215 MSDOS/EBR: the devices created from MSDOS extended partition entries 216 (EBR) can be named differently than with GEOM_MBR and are now symlinks 217 to devices with offset-based names. fstabs may need to be modified. 218 219 BSD: the "geometry does not match label" warning is harmless in most 220 cases but it points to problems in file system misalignment with 221 disk geometry. The "c" partition is now implicit, covers the whole 222 top-level drive and cannot be (mis)used by users. 223 224 General: Kernel dumps are now not allowed to be written to devices 225 whose partition types indicate they are meant to be used for file 226 systems (or, in case of MSDOS partitions, as something else than 227 the "386BSD" type). 228 229 Most of these changes date approximately from 200812. 230 23120090319: 232 The uscanner(4) driver has been removed from the kernel. This follows 233 Linux removing theirs in 2.6 and making libusb the default interface 234 (supported by sane). 235 23620090319: 237 The multicast forwarding code has been cleaned up. netstat(1) 238 only relies on KVM now for printing bandwidth upcall meters. 239 The IPv4 and IPv6 modules are split into ip_mroute_mod and 240 ip6_mroute_mod respectively. The config(5) options for statically 241 compiling this code remain the same, i.e. 'options MROUTING'. 242 24320090315: 244 Support for the IFF_NEEDSGIANT network interface flag has been 245 removed, which means that non-MPSAFE network device drivers are no 246 longer supported. In particular, if_ar, if_sr, and network device 247 drivers from the old (legacy) USB stack can no longer be built or 248 used. 249 25020090313: 251 POSIX.1 Native Language Support (NLS) has been enabled in libc and 252 a bunch of new language catalog files have also been added. 253 This means that some common libc messages are now localized and 254 they depend on the LC_MESSAGES environmental variable. 255 25620090313: 257 The k8temp(4) driver has been renamed to amdtemp(4) since 258 support for K10 and K11 CPU families was added. 259 26020090309: 261 IGMPv3 and Source-Specific Multicast (SSM) have been merged 262 to the IPv4 stack. VIMAGE hooks are in but not yet used. 263 264 For kernel developers, the most important changes are that the 265 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 266 and this lock has been downgraded to a non-recursive mutex. 267 268 Transport protocols (UDP, Raw IP) are now responsible for filtering 269 inbound multicast traffic according to group membership and source 270 filters. The imo_multicast_filter() KPI exists for this purpose. 271 Transports which do not use multicast (SCTP, TCP) already reject 272 multicast by default. Forwarding and receive performance may improve 273 as a mutex acquisition is no longer needed in the ip_input() 274 low-level input path. in_addmulti() and in_delmulti() are shimmed 275 to new KPIs which exist to support SSM in-kernel. 276 277 For application developers, it is recommended that loopback of 278 multicast datagrams be disabled for best performance, as this 279 will still cause the lock to be taken for each looped-back 280 datagram transmission. The net.inet.ip.mcast.loop sysctl may 281 be tuned to 0 to disable loopback by default; it defaults to 1 282 to preserve the existing behaviour. 283 284 For systems administrators, to obtain best performance with 285 multicast reception and multiple groups, it is always recommended 286 that a card with a suitably precise hash filter is used. Hash 287 collisions will still result in the lock being taken within the 288 transport protocol input path to check group membership. 289 290 If deploying FreeBSD in an environment with IGMP snooping switches, 291 it is recommended that the net.inet.igmp.sendlocal sysctl remain 292 enabled; this forces 224.0.0.0/24 group membership to be announced 293 via IGMP. 294 295 The size of 'struct igmpstat' has changed; netstat needs to be 296 recompiled to reflect this. 297 Bump __FreeBSD_version to 800070. 298 29920090309: 300 libusb20.so.1 is now installed as libusb.so.1 and the ports system 301 updated to use it. This requires a buildworld/installworld in order to 302 update the library and dependencies (usbconfig, etc). Its advisable to 303 rebuild all ports which uses libusb. More specific directions are given 304 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 305 libusb are no longer required and can be removed. 306 30720090302: 308 A workaround is committed to allow the creation of System V shared 309 memory segment of size > 2 GB on the 64-bit architectures. 310 Due to a limitation of the existing ABI, the shm_segsz member 311 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 312 wrong for large segments. Note that limits must be explicitly 313 raised to allow such segments to be created. 314 31520090301: 316 The layout of struct ifnet has changed, requiring a rebuild of all 317 network device driver modules. 318 31920090227: 320 The /dev handling for the new USB stack has changed, a 321 buildworld/installworld is required for libusb20. 322 32320090223: 324 The new USB2 stack has now been permanently moved in and all kernel and 325 module names reverted to their previous values (eg, usb, ehci, ohci, 326 ums, ...). The old usb stack can be compiled in by prefixing the name 327 with the letter 'o', the old usb modules have been removed. 328 Updating entry 20090216 for xorg and 20090215 for libmap may still 329 apply. 330 33120090217: 332 The rc.conf(5) option if_up_delay has been renamed to 333 defaultroute_delay to better reflect its purpose. If you have 334 customized this setting in /etc/rc.conf you need to update it to 335 use the new name. 336 33720090216: 338 xorg 7.4 wants to configure its input devices via hald which does not 339 yet work with USB2. If the keyboard/mouse does not work in xorg then 340 add 341 Option "AllowEmptyInput" "off" 342 to your ServerLayout section. This will cause X to use the configured 343 kbd and mouse sections from your xorg.conf. 344 34520090215: 346 The GENERIC kernels for all architectures now default to the new USB2 347 stack. No kernel config options or code have been removed so if a 348 problem arises please report it and optionally revert to the old USB 349 stack. If you are loading USB kernel modules or have a custom kernel 350 that includes GENERIC then ensure that usb names are also changed over, 351 eg uftdi -> usb2_serial_ftdi. 352 353 Older programs linked against the ports libusb 0.1 need to be 354 redirected to the new stack's libusb20. /etc/libmap.conf can 355 be used for this: 356 # Map old usb library to new one for usb2 stack 357 libusb-0.1.so.8 libusb20.so.1 358 35920090203: 360 The ichsmb(4) driver has been changed to require SMBus slave 361 addresses be left-justified (xxxxxxx0b) rather than right-justified. 362 All of the other SMBus controller drivers require left-justified 363 slave addresses, so this change makes all the drivers provide the 364 same interface. 365 36620090201: 367 INET6 statistics (struct ip6stat) was updated. 368 netstat(1) needs to be recompiled. 369 37020090119: 371 NTFS has been removed from GENERIC kernel on amd64 to match 372 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 373 will load ntfs.ko module automatically when NTFS support is 374 actually needed, unless ntfs.ko is not installed or security 375 level prohibits loading kernel modules. If either is the case, 376 "options NTFS" has to be added into kernel config. 377 37820090115: 379 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 380 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 381 800061. User space tools that rely on the size of struct tcpcb in 382 tcp_var.h (e.g. sockstat) need to be recompiled. 383 38420081225: 385 ng_tty(4) module updated to match the new TTY subsystem. 386 Due to API change, user-level applications must be updated. 387 New API support added to mpd5 CVS and expected to be present 388 in next mpd5.3 release. 389 39020081219: 391 With __FreeBSD_version 800060 the makefs tool is part of 392 the base system (it was a port). 393 39420081216: 395 The afdata and ifnet locks have been changed from mutexes to 396 rwlocks, network modules will need to be re-compiled. 397 39820081214: 399 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 400 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 401 The new code reduced struct rtentry{} by 16 bytes on 32-bit 402 architecture and 40 bytes on 64-bit architecture. The userland 403 applications "arp" and "ndp" have been updated accordingly. 404 The output from "netstat -r" shows only routing entries and 405 none of the L2 information. 406 40720081130: 408 __FreeBSD_version 800057 marks the switchover from the 409 binary ath hal to source code. Users must add the line: 410 411 options AH_SUPPORT_AR5416 412 413 to their kernel config files when specifying: 414 415 device ath_hal 416 417 The ath_hal module no longer exists; the code is now compiled 418 together with the driver in the ath module. It is now 419 possible to tailor chip support (i.e. reduce the set of chips 420 and thereby the code size); consult ath_hal(4) for details. 421 42220081121: 423 __FreeBSD_version 800054 adds memory barriers to 424 <machine/atomic.h>, new interfaces to ifnet to facilitate 425 multiple hardware transmit queues for cards that support 426 them, and a lock-less ring-buffer implementation to 427 enable drivers to more efficiently manage queueing of 428 packets. 429 43020081117: 431 A new version of ZFS (version 13) has been merged to -HEAD. 432 This version has zpool attribute "listsnapshots" off by 433 default, which means "zfs list" does not show snapshots, 434 and is the same as Solaris behavior. 435 43620081028: 437 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 438 43920081009: 440 The uhci, ohci, ehci and slhci USB Host controller drivers have 441 been put into separate modules. If you load the usb module 442 separately through loader.conf you will need to load the 443 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 444 controller add the following to loader.conf: 445 446 uhci_load="YES" 447 ehci_load="YES" 448 44920081009: 450 The ABI used by the PMC toolset has changed. Please keep 451 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 452 sync. 453 45420080820: 455 The TTY subsystem of the kernel has been replaced by a new 456 implementation, which provides better scalability and an 457 improved driver model. Most common drivers have been migrated to 458 the new TTY subsystem, while others have not. The following 459 drivers have not yet been ported to the new TTY layer: 460 461 PCI/ISA: 462 cy, digi, rc, rp, sio 463 464 USB: 465 ubser, ucycom 466 467 Line disciplines: 468 ng_h4, ng_tty, ppp, sl, snp 469 470 Adding these drivers to your kernel configuration file shall 471 cause compilation to fail. 472 47320080818: 474 ntpd has been upgraded to 4.2.4p5. 475 47620080801: 477 OpenSSH has been upgraded to 5.1p1. 478 479 For many years, FreeBSD's version of OpenSSH preferred DSA 480 over RSA for host and user authentication keys. With this 481 upgrade, we've switched to the vendor's default of RSA over 482 DSA. This may cause upgraded clients to warn about unknown 483 host keys even for previously known hosts. Users should 484 follow the usual procedure for verifying host keys before 485 accepting the RSA key. 486 487 This can be circumvented by setting the "HostKeyAlgorithms" 488 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 489 command line. 490 491 Please note that the sequence of keys offered for 492 authentication has been changed as well. You may want to 493 specify IdentityFile in a different order to revert this 494 behavior. 495 49620080713: 497 The sio(4) driver has been removed from the i386 and amd64 498 kernel configuration files. This means uart(4) is now the 499 default serial port driver on those platforms as well. 500 501 To prevent collisions with the sio(4) driver, the uart(4) driver 502 uses different names for its device nodes. This means the 503 onboard serial port will now most likely be called "ttyu0" 504 instead of "ttyd0". You may need to reconfigure applications to 505 use the new device names. 506 507 When using the serial port as a boot console, be sure to update 508 /boot/device.hints and /etc/ttys before booting the new kernel. 509 If you forget to do so, you can still manually specify the hints 510 at the loader prompt: 511 512 set hint.uart.0.at="isa" 513 set hint.uart.0.port="0x3F8" 514 set hint.uart.0.flags="0x10" 515 set hint.uart.0.irq="4" 516 boot -s 517 51820080609: 519 The gpt(8) utility has been removed. Use gpart(8) to partition 520 disks instead. 521 52220080603: 523 The version that Linuxulator emulates was changed from 2.4.2 524 to 2.6.16. If you experience any problems with Linux binaries 525 please try to set sysctl compat.linux.osrelease to 2.4.2 and 526 if it fixes the problem contact emulation mailing list. 527 52820080525: 529 ISDN4BSD (I4B) was removed from the src tree. You may need to 530 update a your kernel configuration and remove relevant entries. 531 53220080509: 533 I have checked in code to support multiple routing tables. 534 See the man pages setfib(1) and setfib(2). 535 This is a hopefully backwards compatible version, 536 but to make use of it you need to compile your kernel 537 with options ROUTETABLES=2 (or more up to 16). 538 53920080420: 540 The 802.11 wireless support was redone to enable multi-bss 541 operation on devices that are capable. The underlying device 542 is no longer used directly but instead wlanX devices are 543 cloned with ifconfig. This requires changes to rc.conf files. 544 For example, change: 545 ifconfig_ath0="WPA DHCP" 546 to 547 wlans_ath0=wlan0 548 ifconfig_wlan0="WPA DHCP" 549 see rc.conf(5) for more details. In addition, mergemaster of 550 /etc/rc.d is highly recommended. Simultaneous update of userland 551 and kernel wouldn't hurt either. 552 553 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 554 modules were merged into the base wlan module. All references 555 to these modules (e.g. in kernel config files) must be removed. 556 55720080408: 558 psm(4) has gained write(2) support in native operation level. 559 Arbitrary commands can be written to /dev/psm%d and status can 560 be read back from it. Therefore, an application is responsible 561 for status validation and error recovery. It is a no-op in 562 other operation levels. 563 56420080312: 565 Support for KSE threading has been removed from the kernel. To 566 run legacy applications linked against KSE libmap.conf may 567 be used. The following libmap.conf may be used to ensure 568 compatibility with any prior release: 569 570 libpthread.so.1 libthr.so.1 571 libpthread.so.2 libthr.so.2 572 libkse.so.3 libthr.so.3 573 57420080301: 575 The layout of struct vmspace has changed. This affects libkvm 576 and any executables that link against libkvm and use the 577 kvm_getprocs() function. In particular, but not exclusively, 578 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 579 The effects are minimal, but it's advisable to upgrade world 580 nonetheless. 581 58220080229: 583 The latest em driver no longer has support in it for the 584 82575 adapter, this is now moved to the igb driver. The 585 split was done to make new features that are incompatible 586 with older hardware easier to do. 587 58820080220: 589 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 590 likewise the kernel option is now GEOM_LINUX_LVM. 591 59220080211: 593 The default NFS mount mode has changed from UDP to TCP for 594 increased reliability. If you rely on (insecurely) NFS 595 mounting across a firewall you may need to update your 596 firewall rules. 597 59820080208: 599 Belatedly note the addition of m_collapse for compacting 600 mbuf chains. 601 60220080126: 603 The fts(3) structures have been changed to use adequate 604 integer types for their members and so to be able to cope 605 with huge file trees. The old fts(3) ABI is preserved 606 through symbol versioning in libc, so third-party binaries 607 using fts(3) should still work, although they will not take 608 advantage of the extended types. At the same time, some 609 third-party software might fail to build after this change 610 due to unportable assumptions made in its source code about 611 fts(3) structure members. Such software should be fixed 612 by its vendor or, in the worst case, in the ports tree. 613 FreeBSD_version 800015 marks this change for the unlikely 614 case that a portable fix is impossible. 615 61620080123: 617 To upgrade to -current after this date, you must be running 618 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 619 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 620 62120071128: 622 The ADAPTIVE_GIANT kernel option has been retired because its 623 functionality is the default now. 624 62520071118: 626 The AT keyboard emulation of sunkbd(4) has been turned on 627 by default. In order to make the special symbols of the Sun 628 keyboards driven by sunkbd(4) work under X these now have 629 to be configured the same way as Sun USB keyboards driven 630 by ukbd(4) (which also does AT keyboard emulation), f.e.: 631 632 Option "XkbLayout" "us" 633 Option "XkbRules" "xorg" 634 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 635 63620071024: 637 It has been decided that it is desirable to provide ABI 638 backwards compatibility to the FreeBSD 4/5/6 versions of the 639 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 640 broken with the introduction of PCI domain support (see the 641 20070930 entry). Unfortunately, this required the ABI of 642 PCIOCGETCONF to be broken again in order to be able to 643 provide backwards compatibility to the old version of that 644 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 645 again. As for prominent ports this affects neither pciutils 646 nor xorg-server this time, the hal port needs to be rebuilt 647 however. 648 64920071020: 650 The misnamed kthread_create() and friends have been renamed 651 to kproc_create() etc. Many of the callers already 652 used kproc_start().. 653 I will return kthread_create() and friends in a while 654 with implementations that actually create threads, not procs. 655 Renaming corresponds with version 800002. 656 65720071010: 658 RELENG_7 branched. 659 66020071009: 661 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 662 WITHOUT_LIBTHR are set. 663 66420070930: 665 The PCI code has been made aware of PCI domains. This means that 666 the location strings as used by pciconf(8) etc are now in the 667 following format: pci<domain>:<bus>:<device>[:<function>]. It 668 also means that consumers of <sys/pciio.h> potentially need to 669 be recompiled; this includes the hal and xorg-server ports. 670 67120070928: 672 The caching daemon (cached) was renamed to nscd. nscd.conf 673 configuration file should be used instead of cached.conf and 674 nscd_enable, nscd_pidfile and nscd_flags options should be used 675 instead of cached_enable, cached_pidfile and cached_flags in 676 rc.conf. 677 67820070921: 679 The getfacl(1) utility now prints owning user and group name 680 instead of owning uid and gid in the three line comment header. 681 This is the same behavior as getfacl(1) on Solaris and Linux. 682 68320070704: 684 The new IPsec code is now compiled in using the IPSEC option. The 685 IPSEC option now requires "device crypto" be defined in your kernel 686 configuration. The FAST_IPSEC kernel option is now deprecated. 687 68820070702: 689 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 690 note the changed syntax - keep state is now on by default. Also 691 note the fact that ftp-proxy(8) has been changed from bottom up and 692 has been moved from libexec to usr/sbin. Changes in the ALTQ 693 handling also affect users of IPFW's ALTQ capabilities. 694 69520070701: 696 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 697 only IPsec supported by FreeBSD. The new IPsec stack 698 supports both IPv4 and IPv6. The kernel option will change 699 after the code changes have settled in. For now the kernel 700 option IPSEC is deprecated and FAST_IPSEC is the only option, that 701 will change after some settling time. 702 70320070701: 704 The wicontrol(8) utility has been removed from the base system. wi(4) 705 cards should be configured using ifconfig(8), see the man page for more 706 information. 707 70820070612: 709 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 710 instead of the nve(4) driver. Please update your configuration 711 accordingly. 712 71320070612: 714 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 715 database if it is missing or older than the aliases file. If 716 desired, set the new rc.conf option sendmail_rebuild_aliases 717 to "YES" to restore that functionality. 718 71920070612: 720 The IPv4 multicast socket code has been considerably modified, and 721 moved to the file sys/netinet/in_mcast.c. Initial support for the 722 RFC 3678 Source-Specific Multicast Socket API has been added to 723 the IPv4 network stack. 724 725 Strict multicast and broadcast reception is now the default for 726 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 727 has now been removed. 728 729 The RFC 1724 hack for interface selection has been removed; the use 730 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 731 been added to replace it. Consumers such as routed will soon be 732 updated to reflect this. 733 734 These changes affect users who are running routed(8) or rdisc(8) 735 from the FreeBSD base system on point-to-point or unnumbered 736 interfaces. 737 73820070610: 739 The net80211 layer has changed significantly and all wireless 740 drivers that depend on it need to be recompiled. Further these 741 changes require that any program that interacts with the wireless 742 support in the kernel be recompiled; this includes: ifconfig, 743 wpa_supplicant, hostapd, and wlanstats. Users must also, for 744 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 745 if they use modules for wireless support. These modules implement 746 scanning support for station and ap modes, respectively. Failure 747 to load the appropriate module before marking a wireless interface 748 up will result in a message to the console and the device not 749 operating properly. 750 75120070610: 752 The pam_nologin(8) module ceases to provide an authentication 753 function and starts providing an account management function. 754 Consequent changes to /etc/pam.d should be brought in using 755 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 756 need manual editing as follows. Locate this line (or similar): 757 758 auth required pam_nologin.so no_warn 759 760 and change it according to this example: 761 762 account required pam_nologin.so no_warn 763 764 That is, the first word needs to be changed from "auth" to 765 "account". The new line can be moved to the account section 766 within the file for clarity. Not updating pam.conf(5) files 767 will result in nologin(5) ignored by the respective services. 768 76920070529: 770 The ether_ioctl() function has been synchronized with ioctl(2) 771 and ifnet.if_ioctl. Due to that, the size of one of its arguments 772 has changed on 64-bit architectures. All kernel modules using 773 ether_ioctl() need to be rebuilt on such architectures. 774 77520070516: 776 Improved INCLUDE_CONFIG_FILE support has been introduced to the 777 config(8) utility. In order to take advantage of this new 778 functionality, you are expected to recompile and install 779 src/usr.sbin/config. If you don't rebuild config(8), and your 780 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 781 build will be broken because of a missing "kernconfstring" 782 symbol. 783 78420070513: 785 Symbol versioning is enabled by default. To disable it, use 786 option WITHOUT_SYMVER. It is not advisable to attempt to 787 disable symbol versioning once it is enabled; your installworld 788 will break because a symbol version-less libc will get installed 789 before the install tools. As a result, the old install tools, 790 which previously had symbol dependencies to FBSD_1.0, will fail 791 because the freshly installed libc will not have them. 792 793 The default threading library (providing "libpthread") has been 794 changed to libthr. If you wish to have libkse as your default, 795 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 796 79720070423: 798 The ABI breakage in sendmail(8)'s libmilter has been repaired 799 so it is no longer necessary to recompile mail filters (aka, 800 milters). If you recompiled mail filters after the 20070408 801 note, it is not necessary to recompile them again. 802 80320070417: 804 The new trunk(4) driver has been renamed to lagg(4) as it better 805 reflects its purpose. ifconfig will need to be recompiled. 806 80720070408: 808 sendmail(8) has been updated to version 8.14.1. Mail filters 809 (aka, milters) compiled against the libmilter included in the 810 base operating system should be recompiled. 811 81220070302: 813 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 814 In order to use them one must agree to the respective LICENSE in 815 share/doc/legal and define legal.intel_<name>.license_ack=1 via 816 loader.conf(5) or kenv(1). Make sure to deinstall the now 817 deprecated modules from the respective firmware ports. 818 81920070228: 820 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 821 were removed from FreeBSD's libc. These originally came from INRIA 822 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 823 deprecated in previous releases. 824 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 825 replace it as a more portable (and re-entrant) API. 826 82720070224: 828 To support interrupt filtering a modification to the newbus API 829 has occurred, ABI was broken and __FreeBSD_version was bumped 830 to 700031. Please make sure that your kernel and modules are in 831 sync. For more info: 832 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 833 83420070224: 835 The IPv6 multicast forwarding code may now be loaded into GENERIC 836 kernels by loading the ip_mroute.ko module. This is built into the 837 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 838 set; see src.conf(5) for more information. 839 84020070214: 841 The output of netstat -r has changed. Without -n, we now only 842 print a "network name" without the prefix length if the network 843 address and mask exactly match a Class A/B/C network, and an entry 844 exists in the nsswitch "networks" map. 845 With -n, we print the full unabbreviated CIDR network prefix in 846 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 847 This change is in preparation for changes such as equal-cost 848 multipath, and to more generally assist operational deployment 849 of FreeBSD as a modern IPv4 router. 850 85120070210: 852 PIM has been turned on by default in the IPv4 multicast 853 routing code. The kernel option 'PIM' has now been removed. 854 PIM is now built by default if option 'MROUTING' is specified. 855 It may now be loaded into GENERIC kernels by loading the 856 ip_mroute.ko module. 857 85820070207: 859 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 860 has been removed. Its functionality may be achieved by explicitly 861 configuring gif(4) interfaces and using the 'phyint' keyword in 862 mrouted.conf. 863 XORP does not support source-routed IPv4 multicast tunnels nor the 864 integrated IPIP tunneling, therefore it is not affected by this 865 change. The __FreeBSD_version macro has been bumped to 700030. 866 86720061221: 868 Support for PCI Message Signalled Interrupts has been 869 re-enabled in the bge driver, only for those chips which are 870 believed to support it properly. If there are any problems, 871 MSI can be disabled completely by setting the 872 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 873 in the loader. 874 87520061214: 876 Support for PCI Message Signalled Interrupts has been 877 disabled again in the bge driver. Many revisions of the 878 hardware fail to support it properly. Support can be 879 re-enabled by removing the #define of BGE_DISABLE_MSI in 880 "src/sys/dev/bge/if_bge.c". 881 88220061214: 883 Support for PCI Message Signalled Interrupts has been added 884 to the bge driver. If there are any problems, MSI can be 885 disabled completely by setting the 'hw.pci.enable_msi' and 886 'hw.pci.enable_msix' tunables to 0 in the loader. 887 88820061205: 889 The removal of several facets of the experimental Threading 890 system from the kernel means that the proc and thread structures 891 have changed quite a bit. I suggest all kernel modules that might 892 reference these structures be recompiled.. Especially the 893 linux module. 894 89520061126: 896 Sound infrastructure has been updated with various fixes and 897 improvements. Most of the changes are pretty much transparent, 898 with exceptions of followings: 899 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 900 moved to their own dev sysctl nodes, for example: 901 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 902 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 903 own chardev in the form of "dsp%d.<function>%d", where <function> 904 is p = playback, r = record and v = virtual, respectively. Users 905 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 906 This does not affect those who are using "/dev/dsp". 907 90820061122: 909 geom(4)'s gmirror(8) class metadata structure has been 910 rev'd from v3 to v4. If you update across this point and 911 your metadata is converted for you, you will not be easily 912 able to downgrade since the /boot/kernel.old/geom_mirror.ko 913 kernel module will be unable to read the v4 metadata. You 914 can resolve this by doing from the loader(8) prompt: 915 916 set vfs.root.mountfrom="ufs:/dev/XXX" 917 918 where XXX is the root slice of one of the disks that composed 919 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 920 the array the same way you built it originally. 921 92220061122: 923 The following binaries have been disconnected from the build: 924 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 925 and mount_std. The functionality of these programs has been 926 moved into the mount program. For example, to mount a devfs 927 filesystem, instead of using mount_devfs, use: "mount -t devfs". 928 This does not affect entries in /etc/fstab, since entries in 929 /etc/fstab are always processed with "mount -t fstype". 930 93120061113: 932 Support for PCI Message Signalled Interrupts on i386 and amd64 933 has been added to the kernel and various drivers will soon be 934 updated to use MSI when it is available. If there are any problems, 935 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 936 and 'hw.pci.enable_msix' tunables to 0 in the loader. 937 93820061110: 939 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 940 The lockmgr object layout has been changed as a result of having 941 a lock_object embedded in it. As a consequence all file system 942 kernel modules must be re-compiled. The mutex profiling man page 943 has not yet been updated to reflect this change. 944 94520061026: 946 KSE in the kernel has now been made optional and turned on by 947 default. Use 'nooption KSE' in your kernel config to turn it 948 off. All kernel modules *must* be recompiled after this change. 949 There-after, modules from a KSE kernel should be compatible with 950 modules from a NOKSE kernel due to the temporary padding fields 951 added to 'struct proc'. 952 95320060929: 954 mrouted and its utilities have been removed from the base system. 955 95620060927: 957 Some ioctl(2) command codes have changed. Full backward ABI 958 compatibility is provided if the "options COMPAT_FREEBSD6" is 959 present in the kernel configuration file. Make sure to add 960 this option to your kernel config file, or recompile X.Org 961 and the rest of ports; otherwise they may refuse to work. 962 96320060924: 964 tcpslice has been removed from the base system. 965 96620060913: 967 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 968 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 969 systat needs to be rebuilt. 970 97120060903: 972 libpcap updated to v0.9.4 and tcpdump to v3.9.4 973 97420060816: 975 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 976 for IPFIREWALL_FORWARD is now as it was before when it was first 977 committed and for years after. The behaviour is now ON. 978 97920060725: 980 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 981 Now it can decrypt files created from different architectures. 982 Unfortunately, it is no longer able to decrypt a cipher text 983 generated with an older version on 64 bit architectures. 984 If you have such a file, you need old utility to decrypt it. 985 98620060709: 987 The interface version of the i4b kernel part has changed. So 988 after updating the kernel sources and compiling a new kernel, 989 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 990 be rebuilt, and vice versa. 991 99220060627: 993 The XBOX kernel now defaults to the nfe(4) driver instead of 994 the nve(4) driver. Please update your configuration 995 accordingly. 996 99720060514: 998 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 999 PCnet family of NICs has been removed. The new le(4) driver serves 1000 as an equivalent but cross-platform replacement with the pcn(4) 1001 driver still providing performance-optimized support for the subset 1002 of AMD Am79C971 PCnet-FAST and greater chips as before. 1003 100420060511: 1005 The machdep.* sysctls and the adjkerntz utility have been 1006 modified a bit. The new adjkerntz utility uses the new 1007 sysctl names and sysctlbyname() calls, so it may be impossible 1008 to run an old /sbin/adjkerntz utility in single-user mode 1009 with a new kernel. Replace the `adjkerntz -i' step before 1010 `make installworld' with: 1011 1012 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1013 1014 and proceed as usual with the rest of the installworld-stage 1015 steps. Otherwise, you risk installing binaries with their 1016 timestamp set several hours in the future, especially if 1017 you are running with local time set to GMT+X hours. 1018 101920060412: 1020 The ip6fw utility has been removed. The behavior provided by 1021 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1022 have been updated to deal with it. There are some rules that 1023 might not migrate cleanly. Use rc.firewall6 as a template to 1024 rewrite rules. 1025 102620060428: 1027 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1028 attachments have been removed. Make sure to configure scc(4) 1029 on sparc64. Note also that by default puc(4) will use uart(4) 1030 and not sio(4) for serial ports because interrupt handling has 1031 been optimized for multi-port serial cards and only uart(4) 1032 implements the interface to support it. 1033 103420060330: 1035 The scc(4) driver replaces puc(4) for Serial Communications 1036 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1037 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1038 configuration to make sure that the serial ports remain 1039 functional. 1040 104120060317: 1042 Most world/kernel related NO_* build options changed names. 1043 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1044 after FreeBSD ports) and should be set in /etc/src.conf 1045 (the src.conf(5) manpage is provided). Full backwards 1046 compatibility is maintained for the time being though it's 1047 highly recommended to start moving old options out of the 1048 system-wide /etc/make.conf file into the new /etc/src.conf 1049 while also properly renaming them. More conversions will 1050 likely follow. Posting to current@: 1051 1052 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1053 105420060305: 1055 The NETSMBCRYPTO kernel option has been retired because its 1056 functionality is always included in NETSMB and smbfs.ko now. 1057 105820060303: 1059 The TDFX_LINUX kernel option was retired and replaced by the 1060 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1061 kernel module. Loading it alone should suffice to get 3dfx support 1062 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1063 its dependencies. 1064 106520060204: 1066 The 'audit' group was added to support the new auditing functionality 1067 in the base system. Be sure to follow the directions for updating, 1068 including the requirement to run mergemaster -p. 1069 107020060201: 1071 The kernel ABI to file system modules was changed on i386. 1072 Please make sure that your kernel and modules are in sync. 1073 107420060118: 1075 This actually occured some time ago, but installing the kernel 1076 now also installs a bunch of symbol files for the kernel modules. 1077 This increases the size of /boot/kernel to about 67Mbytes. You 1078 will need twice this if you will eventually back this up to kernel.old 1079 on your next install. 1080 If you have a shortage of room in your root partition, you should add 1081 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1082 to your /etc/make.conf. 1083 108420060113: 1085 libc's malloc implementation has been replaced. This change has the 1086 potential to uncover application bugs that previously went unnoticed. 1087 See the malloc(3) manual page for more details. 1088 108920060112: 1090 The generic netgraph(4) cookie has been changed. If you upgrade 1091 kernel passing this point, you also need to upgrade userland 1092 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1093 109420060106: 1095 si(4)'s device files now contain the unit number. 1096 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1097 109820060106: 1099 The kernel ABI was mostly destroyed due to a change in the size 1100 of struct lock_object which is nested in other structures such 1101 as mutexes which are nested in all sorts of other structures. 1102 Make sure your kernel and modules are in sync. 1103 110420051231: 1105 The page coloring algorithm in the VM subsystem was converted 1106 from tuning with kernel options to autotuning. Please remove 1107 any PQ_* option except PQ_NOOPT from your kernel config. 1108 110920051211: 1110 The net80211-related tools in the tools/tools/ath directory 1111 have been moved to tools/tools/net80211 and renamed with a 1112 "wlan" prefix. Scripts that use them should be adjusted 1113 accordingly. 1114 111520051202: 1116 Scripts in the local_startup directories (as defined in 1117 /etc/defaults/rc.conf) that have the new rc.d semantics will 1118 now be run as part of the base system rcorder. If there are 1119 errors or problems with one of these local scripts, it could 1120 cause boot problems. If you encounter such problems, boot in 1121 single user mode, remove that script from the */rc.d directory. 1122 Please report the problem to the port's maintainer, and the 1123 freebsd-ports@freebsd.org mailing list. 1124 112520051129: 1126 The nodev mount option was deprecated in RELENG_6 (where it 1127 was a no-op), and is now unsupported. If you have nodev or dev listed 1128 in /etc/fstab, remove it, otherwise it will result in a mount error. 1129 113020051129: 1131 ABI between ipfw(4) and ipfw(8) has been changed. You need 1132 to rebuild ipfw(8) when rebuilding kernel. 1133 113420051108: 1135 rp(4)'s device files now contain the unit number. 1136 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1137 113820051029: 1139 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1140 Its /etc/rc.conf.d configuration file has been `ppp' from 1141 the beginning, and hence there is no need to touch it. 1142 114320051014: 1144 Now most modules get their build-time options from the kernel 1145 configuration file. A few modules still have fixed options 1146 due to their non-conformant implementation, but they will be 1147 corrected eventually. You may need to review the options of 1148 the modules in use, explicitly specify the non-default options 1149 in the kernel configuration file, and rebuild the kernel and 1150 modules afterwards. 1151 115220051001: 1153 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1154 to turn polling(4) on your interfaces. 1155 115620050927: 1157 The old bridge(4) implementation was retired. The new 1158 if_bridge(4) serves as a full functional replacement. 1159 116020050722: 1161 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1162 to conform to POSIX-2001. This change broke an ABI 1163 compatibility on 64 bit architecture. You have to recompile 1164 userland programs that use getaddrinfo(3) on 64 bit 1165 architecture. 1166 116720050711: 1168 RELENG_6 branched here. 1169 117020050629: 1171 The pccard_ifconfig rc.conf variable has been removed and a new 1172 variable, ifconfig_DEFAULT has been introduced. Unlike 1173 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1174 do not have ifconfig_ifn entries rather than just those in 1175 removable_interfaces. 1176 117720050616: 1178 Some previous versions of PAM have permitted the use of 1179 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1180 to third party PAM modules in /usr/local/lib. A change has been 1181 made to require the use of absolute paths in order to avoid 1182 ambiguity and dependence on library path configuration, which may 1183 affect existing configurations. 1184 118520050610: 1186 Major changes to network interface API. All drivers must be 1187 recompiled. Drivers not in the base system will need to be 1188 updated to the new APIs. 1189 119020050609: 1191 Changes were made to kinfo_proc in sys/user.h. Please recompile 1192 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1193 will not behave correctly. 1194 1195 The API and ABI for hwpmc(4) have changed with the addition 1196 of sampling support. Please recompile lib/libpmc(3) and 1197 usr.sbin/{pmcstat,pmccontrol}. 1198 119920050606: 1200 The OpenBSD dhclient was imported in place of the ISC dhclient 1201 and the network interface configuration scripts were updated 1202 accordingly. If you use DHCP to configure your interfaces, you 1203 must now run devd. Also, DNS updating was lost so you will need 1204 to find a workaround if you use this feature. 1205 1206 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1207 sure to run mergemaster -p (like you are supposed to do every time 1208 anyway). 1209 121020050605: 1211 if_bridge was added to the tree. This has changed struct ifnet. 1212 Please recompile userland and all network related modules. 1213 121420050603: 1215 The n_net of a struct netent was changed to an uint32_t, and 1216 1st argument of getnetbyaddr() was changed to an uint32_t, to 1217 conform to POSIX-2001. These changes broke an ABI 1218 compatibility on 64 bit architecture. With these changes, 1219 shlib major of libpcap was bumped. You have to recompile 1220 userland programs that use getnetbyaddr(3), getnetbyname(3), 1221 getnetent(3) and/or libpcap on 64 bit architecture. 1222 122320050528: 1224 Kernel parsing of extra options on '#!' first lines of shell 1225 scripts has changed. Lines with multiple options likely will 1226 fail after this date. For full details, please see 1227 http://people.freebsd.org/~gad/Updating-20050528.txt 1228 122920050503: 1230 The packet filter (pf) code has been updated to OpenBSD 3.7 1231 Please note the changed anchor syntax and the fact that 1232 authpf(8) now needs a mounted fdescfs(5) to function. 1233 123420050415: 1235 The NO_MIXED_MODE kernel option has been removed from the i386 1236 amd64 platforms as its use has been superceded by the new local 1237 APIC timer code. Any kernel config files containing this option 1238 should be updated. 1239 124020050227: 1241 The on-disk format of LC_CTYPE files was changed to be machine 1242 independent. Please make sure NOT to use NO_CLEAN buildworld 1243 when crossing this point. Crossing this point also requires 1244 recompile or reinstall of all locale depended packages. 1245 124620050225: 1247 The ifi_epoch member of struct if_data has been changed to 1248 contain the uptime at which the interface was created or the 1249 statistics zeroed rather then the wall clock time because 1250 wallclock time may go backwards. This should have no impact 1251 unless an snmp implementation is using this value (I know of 1252 none at this point.) 1253 125420050224: 1255 The acpi_perf and acpi_throttle drivers are now part of the 1256 acpi(4) main module. They are no longer built separately. 1257 125820050223: 1259 The layout of struct image_params has changed. You have to 1260 recompile all compatibility modules (linux, svr4, etc) for use 1261 with the new kernel. 1262 126320050223: 1264 The p4tcc driver has been merged into cpufreq(4). This makes 1265 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1266 compile in "device cpufreq" to restore this functionality. 1267 126820050220: 1269 The responsibility of recomputing the file system summary of 1270 a SoftUpdates-enabled dirty volume has been transferred to the 1271 background fsck. A rebuild of fsck(8) utility is recommended 1272 if you have updated the kernel. 1273 1274 To get the old behavior (recompute file system summary at mount 1275 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1276 mounting the new volume. 1277 127820050206: 1279 The cpufreq import is complete. As part of this, the sysctls for 1280 acpi(4) throttling have been removed. The power_profile script 1281 has been updated, so you can use performance/economy_cpu_freq in 1282 rc.conf(5) to set AC on/offline cpu frequencies. 1283 128420050206: 1285 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1286 requires recompiling libnetgraph and userland netgraph utilities. 1287 128820050114: 1289 Support for abbreviated forms of a number of ipfw options is 1290 now deprecated. Warnings are printed to stderr indicating the 1291 correct full form when a match occurs. Some abbreviations may 1292 be supported at a later date based on user feedback. To be 1293 considered for support, abbreviations must be in use prior to 1294 this commit and unlikely to be confused with current key words. 1295 129620041221: 1297 By a popular demand, a lot of NOFOO options were renamed 1298 to NO_FOO (see bsd.compat.mk for a full list). The old 1299 spellings are still supported, but will cause annoying 1300 warnings on stderr. Make sure you upgrade properly (see 1301 the COMMON ITEMS: section later in this file). 1302 130320041219: 1304 Auto-loading of ancillary wlan modules such as wlan_wep has 1305 been temporarily disabled; you need to statically configure 1306 the modules you need into your kernel or explicitly load them 1307 prior to use. Specifically, if you intend to use WEP encryption 1308 with an 802.11 device load/configure wlan_wep; if you want to 1309 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1310 and wlan_xauth as required. 1311 131220041213: 1313 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1314 (``enable lqr''), older versions would revert to LCP ECHO mode on 1315 negotiation failure. Now, ``enable echo'' is required for this 1316 behaviour. The ppp version number has been bumped to 3.4.2 to 1317 reflect the change. 1318 131920041201: 1320 The wlan support has been updated to split the crypto support 1321 into separate modules. For static WEP you must configure the 1322 wlan_wep module in your system or build and install the module 1323 in place where it can be loaded (the kernel will auto-load 1324 the module when a wep key is configured). 1325 132620041201: 1327 The ath driver has been updated to split the tx rate control 1328 algorithm into a separate module. You need to include either 1329 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1330 133120041116: 1332 Support for systems with an 80386 CPU has been removed. Please 1333 use FreeBSD 5.x or earlier on systems with an 80386. 1334 133520041110: 1336 We have had a hack which would mount the root filesystem 1337 R/W if the device were named 'md*'. As part of the vnode 1338 work I'm doing I have had to remove this hack. People 1339 building systems which use preloaded MD root filesystems 1340 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1341 their /etc/rc scripts. 1342 134320041104: 1344 FreeBSD 5.3 shipped here. 1345 134620041102: 1347 The size of struct tcpcb has changed again due to the removal 1348 of RFC1644 T/TCP. You have to recompile userland programs that 1349 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1350 135120041022: 1352 The size of struct tcpcb has changed. You have to recompile 1353 userland programs that read kmem for tcp sockets directly 1354 (netstat, sockstat, etc.) 1355 135620041016: 1357 RELENG_5 branched here. For older entries, please see updating 1358 in the RELENG_5 branch. 1359 1360COMMON ITEMS: 1361 1362 General Notes 1363 ------------- 1364 Avoid using make -j when upgrading. From time to time in the 1365 past there have been problems using -j with buildworld and/or 1366 installworld. This is especially true when upgrading between 1367 "distant" versions (eg one that cross a major release boundary 1368 or several minor releases, or when several months have passed 1369 on the -current branch). 1370 1371 Sometimes, obscure build problems are the result of environment 1372 poisoning. This can happen because the make utility reads its 1373 environment when searching for values for global variables. 1374 To run your build attempts in an "environmental clean room", 1375 prefix all make commands with 'env -i '. See the env(1) manual 1376 page for more details. 1377 1378 When upgrading from one major version to another it is generally 1379 best to upgrade to the latest code in the currently installed branch 1380 first, then do an upgrade to the new branch. This is the best-tested 1381 upgrade path, and has the highest probability of being successful. 1382 Please try this approach before reporting problems with a major 1383 version upgrade. 1384 1385 To build a kernel 1386 ----------------- 1387 If you are updating from a prior version of FreeBSD (even one just 1388 a few days old), you should follow this procedure. It is the most 1389 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1390 1391 make kernel-toolchain 1392 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1393 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1394 1395 To test a kernel once 1396 --------------------- 1397 If you just want to boot a kernel once (because you are not sure 1398 if it works, or if you want to boot a known bad kernel to provide 1399 debugging information) run 1400 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1401 nextboot -k testkernel 1402 1403 To just build a kernel when you know that it won't mess you up 1404 -------------------------------------------------------------- 1405 This assumes you are already running a 5.X system. Replace 1406 ${arch} with the architecture of your machine (e.g. "i386", 1407 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1408 1409 cd src/sys/${arch}/conf 1410 config KERNEL_NAME_HERE 1411 cd ../compile/KERNEL_NAME_HERE 1412 make depend 1413 make 1414 make install 1415 1416 If this fails, go to the "To build a kernel" section. 1417 1418 To rebuild everything and install it on the current system. 1419 ----------------------------------------------------------- 1420 # Note: sometimes if you are running current you gotta do more than 1421 # is listed here if you are upgrading from a really old current. 1422 1423 <make sure you have good level 0 dumps> 1424 make buildworld 1425 make kernel KERNCONF=YOUR_KERNEL_HERE 1426 [1] 1427 <reboot in single user> [3] 1428 mergemaster -p [5] 1429 make installworld 1430 make delete-old 1431 mergemaster [4] 1432 <reboot> 1433 1434 1435 To cross-install current onto a separate partition 1436 -------------------------------------------------- 1437 # In this approach we use a separate partition to hold 1438 # current's root, 'usr', and 'var' directories. A partition 1439 # holding "/", "/usr" and "/var" should be about 2GB in 1440 # size. 1441 1442 <make sure you have good level 0 dumps> 1443 <boot into -stable> 1444 make buildworld 1445 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1446 <maybe newfs current's root partition> 1447 <mount current's root partition on directory ${CURRENT_ROOT}> 1448 make installworld DESTDIR=${CURRENT_ROOT} 1449 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1450 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1451 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1452 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1453 <reboot into current> 1454 <do a "native" rebuild/install as described in the previous section> 1455 <maybe install compatibility libraries from ports/misc/compat*> 1456 <reboot> 1457 1458 1459 To upgrade in-place from 5.x-stable to current 1460 ---------------------------------------------- 1461 <make sure you have good level 0 dumps> 1462 make buildworld [9] 1463 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1464 [1] 1465 <reboot in single user> [3] 1466 mergemaster -p [5] 1467 make installworld 1468 make delete-old 1469 mergemaster -i [4] 1470 <reboot> 1471 1472 Make sure that you've read the UPDATING file to understand the 1473 tweaks to various things you need. At this point in the life 1474 cycle of current, things change often and you are on your own 1475 to cope. The defaults can also change, so please read ALL of 1476 the UPDATING entries. 1477 1478 Also, if you are tracking -current, you must be subscribed to 1479 freebsd-current@freebsd.org. Make sure that before you update 1480 your sources that you have read and understood all the recent 1481 messages there. If in doubt, please track -stable which has 1482 much fewer pitfalls. 1483 1484 [1] If you have third party modules, such as vmware, you 1485 should disable them at this point so they don't crash your 1486 system on reboot. 1487 1488 [3] From the bootblocks, boot -s, and then do 1489 fsck -p 1490 mount -u / 1491 mount -a 1492 cd src 1493 adjkerntz -i # if CMOS is wall time 1494 Also, when doing a major release upgrade, it is required that 1495 you boot into single user mode to do the installworld. 1496 1497 [4] Note: This step is non-optional. Failure to do this step 1498 can result in a significant reduction in the functionality of the 1499 system. Attempting to do it by hand is not recommended and those 1500 that pursue this avenue should read this file carefully, as well 1501 as the archives of freebsd-current and freebsd-hackers mailing lists 1502 for potential gotchas. 1503 1504 [5] Usually this step is a noop. However, from time to time 1505 you may need to do this if you get unknown user in the following 1506 step. It never hurts to do it all the time. You may need to 1507 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1508 install) after the buildworld before this step if you last updated 1509 from current before 20020224 or from -stable before 20020408. 1510 1511 [8] In order to have a kernel that can run the 4.x binaries 1512 needed to do an installworld, you must include the COMPAT_FREEBSD4 1513 option in your kernel. Failure to do so may leave you with a system 1514 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1515 is required to run the 5.x binaries on more recent kernels. 1516 1517 Make sure that you merge any new devices from GENERIC since the 1518 last time you updated your kernel config file. 1519 1520 [9] When checking out sources, you must include the -P flag to have 1521 cvs prune empty directories. 1522 1523 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1524 "?=" instead of the "=" assignment operator, so that buildworld can 1525 override the CPUTYPE if it needs to. 1526 1527 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1528 not on the command line, or in /etc/make.conf. buildworld will 1529 warn if it is improperly defined. 1530FORMAT: 1531 1532This file contains a list, in reverse chronological order, of major 1533breakages in tracking -current. Not all things will be listed here, 1534and it only starts on October 16, 2004. Updating files can found in 1535previous releases if your system is older than this. 1536 1537Copyright information: 1538 1539Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1540 1541Redistribution, publication, translation and use, with or without 1542modification, in full or in part, in any form or format of this 1543document are permitted without further permission from the author. 1544 1545THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1546IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1547WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1548DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1549INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1550(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1551SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1552HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1553STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1554IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1555POSSIBILITY OF SUCH DAMAGE. 1556 1557If you find this document useful, and you want to, you may buy the 1558author a beer. 1559 1560Contact Warner Losh if you have any questions about your use of 1561this document. 1562 1563$FreeBSD: head/UPDATING 193138 2009-05-30 23:52:23Z attilio $ 1564