UPDATING revision 194012
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 2520090611: 26 The layout of struct thread has changed. Kernel and modules 27 need to be rebuilt. 28 2920090608: 30 The layout of structs ifnet, domain, protosw and vnet_net has 31 changed. Kernel modules need to be rebuilt. 32 Bump __FreeBSD_version to 800097. 33 3420090602: 35 window(1) has been removed from the base system. It can now be 36 installed from ports. The port is called misc/window. 37 3820090601: 39 The way we are storing and accessing `routing table' entries 40 has changed. Programs reading the FIB, like netstat, need to 41 be re-compiled. 42 4320090601: 44 A new netisr implementation has been added for FreeBSD 8. Network 45 file system modules, such as igmp, ipdivert, and others, should be 46 rebuilt. 47 Bump __FreeBSD_version to 800096. 48 4920090531: 50 For those who use ipfw and especially pf, those two firewalls 51 are now started BEFORE the network is initialized (i.e., before 52 rc.d/netif). Please review your rules to make sure that your 53 interfaces will be properly described. 54 5520090530: 56 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose 57 is no more valid. 58 5920090530: 60 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 61 Bump __FreeBSD_version to 800094. 62 6320090529: 64 Add mnt_xflag field to 'struct mount'. File system modules 65 need to be rebuilt. 66 Bump __FreeBSD_version to 800093. 67 6820090528: 69 The compiling option ADAPTIVE_SX has been retired while it has been 70 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 71 The KPI for sx_init_flags() changes as accepting flags: 72 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 73 has been introduced in order to handle the reversed logic. 74 Bump __FreeBSD_version to 800092. 75 7620090527: 77 Add support for hierarchical jails. Remove global securelevel. 78 Bump __FreeBSD_version to 800091. 79 8020090523: 81 The layout of struct vnet_net has changed, therefore modules 82 need to be rebuilt. 83 Bump __FreeBSD_version to 800090. 84 8520090523: 86 The newly imported zic(8) produces a new format in the 87 output. Please run tzsetup(8) to install the newly created 88 data to /etc/localtime. 89 9020090520: 91 The sysctl tree for the usb stack has renamed from hw.usb2.* to 92 hw.usb.* and is now consistent again with previous releases. 93 9420090520: 95 802.11 monitor mode support was revised and driver api's 96 were changed. Drivers dependent on net80211 now support 97 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 98 user-visible data structures were changed but applications 99 that use DLT_IEEE802_11 may require changes. 100 Bump __FreeBSD_version to 800088. 101 10220090430: 103 The layout of the following structs has changed: sysctl_oid, 104 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 105 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 106 panics may be experienced. World rebuild is required for 107 correctly checking networking state from userland. 108 Bump __FreeBSD_version to 800085. 109 11020090429: 111 MLDv2 and Source-Specific Multicast (SSM) have been merged 112 to the IPv6 stack. VIMAGE hooks are in but not yet used. 113 The implementation of SSM within FreeBSD's IPv6 stack closely 114 follows the IPv4 implementation. 115 116 For kernel developers: 117 118 * The most important changes are that the ip6_output() and 119 ip6_input() paths no longer take the IN6_MULTI_LOCK, 120 and this lock has been downgraded to a non-recursive mutex. 121 122 * As with the changes to the IPv4 stack to support SSM, filtering 123 of inbound multicast traffic must now be performed by transport 124 protocols within the IPv6 stack. This does not apply to TCP and 125 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 126 127 * The KPIs used by IPv6 multicast are similar to those used by 128 the IPv4 stack, with the following differences: 129 * im6o_mc_filter() is analogous to imo_multicast_filter(). 130 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 131 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 132 * IN6_LOOKUP_MULTI() has been deprecated and removed. 133 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 134 for MLDv1 have an additional 'timer' argument which is used to 135 jitter the initial membership report for the solicited-node 136 multicast membership on-link. 137 * This is not strictly needed for MLDv2, which already jitters 138 its report transmissions. However, the 'timer' argument is 139 preserved in case MLDv1 is active on the interface. 140 141 * The KAME linked-list based IPv6 membership implementation has 142 been refactored to use a vector similar to that used by the IPv4 143 stack. 144 Code which maintains a list of its own multicast memberships 145 internally, e.g. carp, has been updated to reflect the new 146 semantics. 147 148 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 149 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 150 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 151 implementation constraint which needs to be addressed in HEAD. 152 153 For application developers: 154 155 * The changes are broadly similar to those made for the IPv4 156 stack. 157 158 * The use of IPv4 and IPv6 multicast socket options on the same 159 socket, using mapped addresses, HAS NOT been tested or supported. 160 161 * There are a number of issues with the implementation of various 162 IPv6 multicast APIs which need to be resolved in the API surface 163 before the implementation is fully compatible with KAME userland 164 use, and these are mostly to do with interface index treatment. 165 166 * The literature available discusses the use of either the delta / ASM 167 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 168 using setsourcefilter(3)/getsourcefilter(3). For more information 169 please refer to RFC 3768, 'Socket Interface Extensions for 170 Multicast Source Filters'. 171 172 * Applications which use the published RFC 3678 APIs should be fine. 173 174 For systems administrators: 175 176 * The mtest(8) utility has been refactored to support IPv6, in 177 addition to IPv4. Interface addresses are no longer accepted 178 as arguments, their names must be used instead. The utility 179 will map the interface name to its first IPv4 address as 180 returned by getifaddrs(3). 181 182 * The ifmcstat(8) utility has also been updated to print the MLDv2 183 endpoint state and source filter lists via sysctl(3). 184 185 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 186 loopback of IPv6 multicast datagrams by default; it defaults to 1 187 to preserve the existing behaviour. Disabling multicast loopback is 188 recommended for optimal system performance. 189 190 * The IPv6 MROUTING code has been changed to examine this sysctl 191 instead of attempting to perform a group lookup before looping 192 back forwarded datagrams. 193 194 Bump __FreeBSD_version to 800084. 195 19620090422: 197 Implement low-level Bluetooth HCI API. 198 Bump __FreeBSD_version to 800083. 199 20020090419: 201 The layout of struct malloc_type, used by modules to register new 202 memory allocation types, has changed. Most modules will need to 203 be rebuilt or panics may be experienced. 204 Bump __FreeBSD_version to 800081. 205 20620090415: 207 Anticipate overflowing inp_flags - add inp_flags2. 208 This changes most offsets in inpcb, so checking v4 connection 209 state will require a world rebuild. 210 Bump __FreeBSD_version to 800080. 211 21220090415: 213 Add an llentry to struct route and struct route_in6. Modules 214 embedding a struct route will need to be recompiled. 215 Bump __FreeBSD_version to 800079. 216 21720090414: 218 The size of rt_metrics_lite and by extension rtentry has changed. 219 Networking administration apps will need to be recompiled. 220 The route command now supports show as an alias for get, weighting 221 of routes, sticky and nostick flags to alter the behavior of stateful 222 load balancing. 223 Bump __FreeBSD_version to 800078. 224 22520090408: 226 Do not use Giant for kbdmux(4) locking. This is wrong and 227 apparently causing more problems than it solves. This will 228 re-open the issue where interrupt handlers may race with 229 kbdmux(4) in polling mode. Typical symptoms include (but 230 not limited to) duplicated and/or missing characters when 231 low level console functions (such as gets) are used while 232 interrupts are enabled (for example geli password prompt, 233 mountroot prompt etc.). Disabling kbdmux(4) may help. 234 23520090407: 236 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 237 kernel modules referencing any of the above need to be recompiled. 238 Bump __FreeBSD_version to 800075. 239 24020090320: 241 GEOM_PART has become the default partition slicer for storage devices, 242 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 243 introduces some changes: 244 245 MSDOS/EBR: the devices created from MSDOS extended partition entries 246 (EBR) can be named differently than with GEOM_MBR and are now symlinks 247 to devices with offset-based names. fstabs may need to be modified. 248 249 BSD: the "geometry does not match label" warning is harmless in most 250 cases but it points to problems in file system misalignment with 251 disk geometry. The "c" partition is now implicit, covers the whole 252 top-level drive and cannot be (mis)used by users. 253 254 General: Kernel dumps are now not allowed to be written to devices 255 whose partition types indicate they are meant to be used for file 256 systems (or, in case of MSDOS partitions, as something else than 257 the "386BSD" type). 258 259 Most of these changes date approximately from 200812. 260 26120090319: 262 The uscanner(4) driver has been removed from the kernel. This follows 263 Linux removing theirs in 2.6 and making libusb the default interface 264 (supported by sane). 265 26620090319: 267 The multicast forwarding code has been cleaned up. netstat(1) 268 only relies on KVM now for printing bandwidth upcall meters. 269 The IPv4 and IPv6 modules are split into ip_mroute_mod and 270 ip6_mroute_mod respectively. The config(5) options for statically 271 compiling this code remain the same, i.e. 'options MROUTING'. 272 27320090315: 274 Support for the IFF_NEEDSGIANT network interface flag has been 275 removed, which means that non-MPSAFE network device drivers are no 276 longer supported. In particular, if_ar, if_sr, and network device 277 drivers from the old (legacy) USB stack can no longer be built or 278 used. 279 28020090313: 281 POSIX.1 Native Language Support (NLS) has been enabled in libc and 282 a bunch of new language catalog files have also been added. 283 This means that some common libc messages are now localized and 284 they depend on the LC_MESSAGES environmental variable. 285 28620090313: 287 The k8temp(4) driver has been renamed to amdtemp(4) since 288 support for K10 and K11 CPU families was added. 289 29020090309: 291 IGMPv3 and Source-Specific Multicast (SSM) have been merged 292 to the IPv4 stack. VIMAGE hooks are in but not yet used. 293 294 For kernel developers, the most important changes are that the 295 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 296 and this lock has been downgraded to a non-recursive mutex. 297 298 Transport protocols (UDP, Raw IP) are now responsible for filtering 299 inbound multicast traffic according to group membership and source 300 filters. The imo_multicast_filter() KPI exists for this purpose. 301 Transports which do not use multicast (SCTP, TCP) already reject 302 multicast by default. Forwarding and receive performance may improve 303 as a mutex acquisition is no longer needed in the ip_input() 304 low-level input path. in_addmulti() and in_delmulti() are shimmed 305 to new KPIs which exist to support SSM in-kernel. 306 307 For application developers, it is recommended that loopback of 308 multicast datagrams be disabled for best performance, as this 309 will still cause the lock to be taken for each looped-back 310 datagram transmission. The net.inet.ip.mcast.loop sysctl may 311 be tuned to 0 to disable loopback by default; it defaults to 1 312 to preserve the existing behaviour. 313 314 For systems administrators, to obtain best performance with 315 multicast reception and multiple groups, it is always recommended 316 that a card with a suitably precise hash filter is used. Hash 317 collisions will still result in the lock being taken within the 318 transport protocol input path to check group membership. 319 320 If deploying FreeBSD in an environment with IGMP snooping switches, 321 it is recommended that the net.inet.igmp.sendlocal sysctl remain 322 enabled; this forces 224.0.0.0/24 group membership to be announced 323 via IGMP. 324 325 The size of 'struct igmpstat' has changed; netstat needs to be 326 recompiled to reflect this. 327 Bump __FreeBSD_version to 800070. 328 32920090309: 330 libusb20.so.1 is now installed as libusb.so.1 and the ports system 331 updated to use it. This requires a buildworld/installworld in order to 332 update the library and dependencies (usbconfig, etc). Its advisable to 333 rebuild all ports which uses libusb. More specific directions are given 334 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 335 libusb are no longer required and can be removed. 336 33720090302: 338 A workaround is committed to allow the creation of System V shared 339 memory segment of size > 2 GB on the 64-bit architectures. 340 Due to a limitation of the existing ABI, the shm_segsz member 341 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 342 wrong for large segments. Note that limits must be explicitly 343 raised to allow such segments to be created. 344 34520090301: 346 The layout of struct ifnet has changed, requiring a rebuild of all 347 network device driver modules. 348 34920090227: 350 The /dev handling for the new USB stack has changed, a 351 buildworld/installworld is required for libusb20. 352 35320090223: 354 The new USB2 stack has now been permanently moved in and all kernel and 355 module names reverted to their previous values (eg, usb, ehci, ohci, 356 ums, ...). The old usb stack can be compiled in by prefixing the name 357 with the letter 'o', the old usb modules have been removed. 358 Updating entry 20090216 for xorg and 20090215 for libmap may still 359 apply. 360 36120090217: 362 The rc.conf(5) option if_up_delay has been renamed to 363 defaultroute_delay to better reflect its purpose. If you have 364 customized this setting in /etc/rc.conf you need to update it to 365 use the new name. 366 36720090216: 368 xorg 7.4 wants to configure its input devices via hald which does not 369 yet work with USB2. If the keyboard/mouse does not work in xorg then 370 add 371 Option "AllowEmptyInput" "off" 372 to your ServerLayout section. This will cause X to use the configured 373 kbd and mouse sections from your xorg.conf. 374 37520090215: 376 The GENERIC kernels for all architectures now default to the new USB2 377 stack. No kernel config options or code have been removed so if a 378 problem arises please report it and optionally revert to the old USB 379 stack. If you are loading USB kernel modules or have a custom kernel 380 that includes GENERIC then ensure that usb names are also changed over, 381 eg uftdi -> usb2_serial_ftdi. 382 383 Older programs linked against the ports libusb 0.1 need to be 384 redirected to the new stack's libusb20. /etc/libmap.conf can 385 be used for this: 386 # Map old usb library to new one for usb2 stack 387 libusb-0.1.so.8 libusb20.so.1 388 38920090203: 390 The ichsmb(4) driver has been changed to require SMBus slave 391 addresses be left-justified (xxxxxxx0b) rather than right-justified. 392 All of the other SMBus controller drivers require left-justified 393 slave addresses, so this change makes all the drivers provide the 394 same interface. 395 39620090201: 397 INET6 statistics (struct ip6stat) was updated. 398 netstat(1) needs to be recompiled. 399 40020090119: 401 NTFS has been removed from GENERIC kernel on amd64 to match 402 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 403 will load ntfs.ko module automatically when NTFS support is 404 actually needed, unless ntfs.ko is not installed or security 405 level prohibits loading kernel modules. If either is the case, 406 "options NTFS" has to be added into kernel config. 407 40820090115: 409 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 410 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 411 800061. User space tools that rely on the size of struct tcpcb in 412 tcp_var.h (e.g. sockstat) need to be recompiled. 413 41420081225: 415 ng_tty(4) module updated to match the new TTY subsystem. 416 Due to API change, user-level applications must be updated. 417 New API support added to mpd5 CVS and expected to be present 418 in next mpd5.3 release. 419 42020081219: 421 With __FreeBSD_version 800060 the makefs tool is part of 422 the base system (it was a port). 423 42420081216: 425 The afdata and ifnet locks have been changed from mutexes to 426 rwlocks, network modules will need to be re-compiled. 427 42820081214: 429 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 430 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 431 The new code reduced struct rtentry{} by 16 bytes on 32-bit 432 architecture and 40 bytes on 64-bit architecture. The userland 433 applications "arp" and "ndp" have been updated accordingly. 434 The output from "netstat -r" shows only routing entries and 435 none of the L2 information. 436 43720081130: 438 __FreeBSD_version 800057 marks the switchover from the 439 binary ath hal to source code. Users must add the line: 440 441 options AH_SUPPORT_AR5416 442 443 to their kernel config files when specifying: 444 445 device ath_hal 446 447 The ath_hal module no longer exists; the code is now compiled 448 together with the driver in the ath module. It is now 449 possible to tailor chip support (i.e. reduce the set of chips 450 and thereby the code size); consult ath_hal(4) for details. 451 45220081121: 453 __FreeBSD_version 800054 adds memory barriers to 454 <machine/atomic.h>, new interfaces to ifnet to facilitate 455 multiple hardware transmit queues for cards that support 456 them, and a lock-less ring-buffer implementation to 457 enable drivers to more efficiently manage queueing of 458 packets. 459 46020081117: 461 A new version of ZFS (version 13) has been merged to -HEAD. 462 This version has zpool attribute "listsnapshots" off by 463 default, which means "zfs list" does not show snapshots, 464 and is the same as Solaris behavior. 465 46620081028: 467 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 468 46920081009: 470 The uhci, ohci, ehci and slhci USB Host controller drivers have 471 been put into separate modules. If you load the usb module 472 separately through loader.conf you will need to load the 473 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 474 controller add the following to loader.conf: 475 476 uhci_load="YES" 477 ehci_load="YES" 478 47920081009: 480 The ABI used by the PMC toolset has changed. Please keep 481 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 482 sync. 483 48420080820: 485 The TTY subsystem of the kernel has been replaced by a new 486 implementation, which provides better scalability and an 487 improved driver model. Most common drivers have been migrated to 488 the new TTY subsystem, while others have not. The following 489 drivers have not yet been ported to the new TTY layer: 490 491 PCI/ISA: 492 cy, digi, rc, rp, sio 493 494 USB: 495 ubser, ucycom 496 497 Line disciplines: 498 ng_h4, ng_tty, ppp, sl, snp 499 500 Adding these drivers to your kernel configuration file shall 501 cause compilation to fail. 502 50320080818: 504 ntpd has been upgraded to 4.2.4p5. 505 50620080801: 507 OpenSSH has been upgraded to 5.1p1. 508 509 For many years, FreeBSD's version of OpenSSH preferred DSA 510 over RSA for host and user authentication keys. With this 511 upgrade, we've switched to the vendor's default of RSA over 512 DSA. This may cause upgraded clients to warn about unknown 513 host keys even for previously known hosts. Users should 514 follow the usual procedure for verifying host keys before 515 accepting the RSA key. 516 517 This can be circumvented by setting the "HostKeyAlgorithms" 518 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 519 command line. 520 521 Please note that the sequence of keys offered for 522 authentication has been changed as well. You may want to 523 specify IdentityFile in a different order to revert this 524 behavior. 525 52620080713: 527 The sio(4) driver has been removed from the i386 and amd64 528 kernel configuration files. This means uart(4) is now the 529 default serial port driver on those platforms as well. 530 531 To prevent collisions with the sio(4) driver, the uart(4) driver 532 uses different names for its device nodes. This means the 533 onboard serial port will now most likely be called "ttyu0" 534 instead of "ttyd0". You may need to reconfigure applications to 535 use the new device names. 536 537 When using the serial port as a boot console, be sure to update 538 /boot/device.hints and /etc/ttys before booting the new kernel. 539 If you forget to do so, you can still manually specify the hints 540 at the loader prompt: 541 542 set hint.uart.0.at="isa" 543 set hint.uart.0.port="0x3F8" 544 set hint.uart.0.flags="0x10" 545 set hint.uart.0.irq="4" 546 boot -s 547 54820080609: 549 The gpt(8) utility has been removed. Use gpart(8) to partition 550 disks instead. 551 55220080603: 553 The version that Linuxulator emulates was changed from 2.4.2 554 to 2.6.16. If you experience any problems with Linux binaries 555 please try to set sysctl compat.linux.osrelease to 2.4.2 and 556 if it fixes the problem contact emulation mailing list. 557 55820080525: 559 ISDN4BSD (I4B) was removed from the src tree. You may need to 560 update a your kernel configuration and remove relevant entries. 561 56220080509: 563 I have checked in code to support multiple routing tables. 564 See the man pages setfib(1) and setfib(2). 565 This is a hopefully backwards compatible version, 566 but to make use of it you need to compile your kernel 567 with options ROUTETABLES=2 (or more up to 16). 568 56920080420: 570 The 802.11 wireless support was redone to enable multi-bss 571 operation on devices that are capable. The underlying device 572 is no longer used directly but instead wlanX devices are 573 cloned with ifconfig. This requires changes to rc.conf files. 574 For example, change: 575 ifconfig_ath0="WPA DHCP" 576 to 577 wlans_ath0=wlan0 578 ifconfig_wlan0="WPA DHCP" 579 see rc.conf(5) for more details. In addition, mergemaster of 580 /etc/rc.d is highly recommended. Simultaneous update of userland 581 and kernel wouldn't hurt either. 582 583 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 584 modules were merged into the base wlan module. All references 585 to these modules (e.g. in kernel config files) must be removed. 586 58720080408: 588 psm(4) has gained write(2) support in native operation level. 589 Arbitrary commands can be written to /dev/psm%d and status can 590 be read back from it. Therefore, an application is responsible 591 for status validation and error recovery. It is a no-op in 592 other operation levels. 593 59420080312: 595 Support for KSE threading has been removed from the kernel. To 596 run legacy applications linked against KSE libmap.conf may 597 be used. The following libmap.conf may be used to ensure 598 compatibility with any prior release: 599 600 libpthread.so.1 libthr.so.1 601 libpthread.so.2 libthr.so.2 602 libkse.so.3 libthr.so.3 603 60420080301: 605 The layout of struct vmspace has changed. This affects libkvm 606 and any executables that link against libkvm and use the 607 kvm_getprocs() function. In particular, but not exclusively, 608 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 609 The effects are minimal, but it's advisable to upgrade world 610 nonetheless. 611 61220080229: 613 The latest em driver no longer has support in it for the 614 82575 adapter, this is now moved to the igb driver. The 615 split was done to make new features that are incompatible 616 with older hardware easier to do. 617 61820080220: 619 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 620 likewise the kernel option is now GEOM_LINUX_LVM. 621 62220080211: 623 The default NFS mount mode has changed from UDP to TCP for 624 increased reliability. If you rely on (insecurely) NFS 625 mounting across a firewall you may need to update your 626 firewall rules. 627 62820080208: 629 Belatedly note the addition of m_collapse for compacting 630 mbuf chains. 631 63220080126: 633 The fts(3) structures have been changed to use adequate 634 integer types for their members and so to be able to cope 635 with huge file trees. The old fts(3) ABI is preserved 636 through symbol versioning in libc, so third-party binaries 637 using fts(3) should still work, although they will not take 638 advantage of the extended types. At the same time, some 639 third-party software might fail to build after this change 640 due to unportable assumptions made in its source code about 641 fts(3) structure members. Such software should be fixed 642 by its vendor or, in the worst case, in the ports tree. 643 FreeBSD_version 800015 marks this change for the unlikely 644 case that a portable fix is impossible. 645 64620080123: 647 To upgrade to -current after this date, you must be running 648 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 649 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 650 65120071128: 652 The ADAPTIVE_GIANT kernel option has been retired because its 653 functionality is the default now. 654 65520071118: 656 The AT keyboard emulation of sunkbd(4) has been turned on 657 by default. In order to make the special symbols of the Sun 658 keyboards driven by sunkbd(4) work under X these now have 659 to be configured the same way as Sun USB keyboards driven 660 by ukbd(4) (which also does AT keyboard emulation), f.e.: 661 662 Option "XkbLayout" "us" 663 Option "XkbRules" "xorg" 664 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 665 66620071024: 667 It has been decided that it is desirable to provide ABI 668 backwards compatibility to the FreeBSD 4/5/6 versions of the 669 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 670 broken with the introduction of PCI domain support (see the 671 20070930 entry). Unfortunately, this required the ABI of 672 PCIOCGETCONF to be broken again in order to be able to 673 provide backwards compatibility to the old version of that 674 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 675 again. As for prominent ports this affects neither pciutils 676 nor xorg-server this time, the hal port needs to be rebuilt 677 however. 678 67920071020: 680 The misnamed kthread_create() and friends have been renamed 681 to kproc_create() etc. Many of the callers already 682 used kproc_start().. 683 I will return kthread_create() and friends in a while 684 with implementations that actually create threads, not procs. 685 Renaming corresponds with version 800002. 686 68720071010: 688 RELENG_7 branched. 689 69020071009: 691 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 692 WITHOUT_LIBTHR are set. 693 69420070930: 695 The PCI code has been made aware of PCI domains. This means that 696 the location strings as used by pciconf(8) etc are now in the 697 following format: pci<domain>:<bus>:<device>[:<function>]. It 698 also means that consumers of <sys/pciio.h> potentially need to 699 be recompiled; this includes the hal and xorg-server ports. 700 70120070928: 702 The caching daemon (cached) was renamed to nscd. nscd.conf 703 configuration file should be used instead of cached.conf and 704 nscd_enable, nscd_pidfile and nscd_flags options should be used 705 instead of cached_enable, cached_pidfile and cached_flags in 706 rc.conf. 707 70820070921: 709 The getfacl(1) utility now prints owning user and group name 710 instead of owning uid and gid in the three line comment header. 711 This is the same behavior as getfacl(1) on Solaris and Linux. 712 71320070704: 714 The new IPsec code is now compiled in using the IPSEC option. The 715 IPSEC option now requires "device crypto" be defined in your kernel 716 configuration. The FAST_IPSEC kernel option is now deprecated. 717 71820070702: 719 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 720 note the changed syntax - keep state is now on by default. Also 721 note the fact that ftp-proxy(8) has been changed from bottom up and 722 has been moved from libexec to usr/sbin. Changes in the ALTQ 723 handling also affect users of IPFW's ALTQ capabilities. 724 72520070701: 726 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 727 only IPsec supported by FreeBSD. The new IPsec stack 728 supports both IPv4 and IPv6. The kernel option will change 729 after the code changes have settled in. For now the kernel 730 option IPSEC is deprecated and FAST_IPSEC is the only option, that 731 will change after some settling time. 732 73320070701: 734 The wicontrol(8) utility has been removed from the base system. wi(4) 735 cards should be configured using ifconfig(8), see the man page for more 736 information. 737 73820070612: 739 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 740 instead of the nve(4) driver. Please update your configuration 741 accordingly. 742 74320070612: 744 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 745 database if it is missing or older than the aliases file. If 746 desired, set the new rc.conf option sendmail_rebuild_aliases 747 to "YES" to restore that functionality. 748 74920070612: 750 The IPv4 multicast socket code has been considerably modified, and 751 moved to the file sys/netinet/in_mcast.c. Initial support for the 752 RFC 3678 Source-Specific Multicast Socket API has been added to 753 the IPv4 network stack. 754 755 Strict multicast and broadcast reception is now the default for 756 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 757 has now been removed. 758 759 The RFC 1724 hack for interface selection has been removed; the use 760 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 761 been added to replace it. Consumers such as routed will soon be 762 updated to reflect this. 763 764 These changes affect users who are running routed(8) or rdisc(8) 765 from the FreeBSD base system on point-to-point or unnumbered 766 interfaces. 767 76820070610: 769 The net80211 layer has changed significantly and all wireless 770 drivers that depend on it need to be recompiled. Further these 771 changes require that any program that interacts with the wireless 772 support in the kernel be recompiled; this includes: ifconfig, 773 wpa_supplicant, hostapd, and wlanstats. Users must also, for 774 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 775 if they use modules for wireless support. These modules implement 776 scanning support for station and ap modes, respectively. Failure 777 to load the appropriate module before marking a wireless interface 778 up will result in a message to the console and the device not 779 operating properly. 780 78120070610: 782 The pam_nologin(8) module ceases to provide an authentication 783 function and starts providing an account management function. 784 Consequent changes to /etc/pam.d should be brought in using 785 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 786 need manual editing as follows. Locate this line (or similar): 787 788 auth required pam_nologin.so no_warn 789 790 and change it according to this example: 791 792 account required pam_nologin.so no_warn 793 794 That is, the first word needs to be changed from "auth" to 795 "account". The new line can be moved to the account section 796 within the file for clarity. Not updating pam.conf(5) files 797 will result in nologin(5) ignored by the respective services. 798 79920070529: 800 The ether_ioctl() function has been synchronized with ioctl(2) 801 and ifnet.if_ioctl. Due to that, the size of one of its arguments 802 has changed on 64-bit architectures. All kernel modules using 803 ether_ioctl() need to be rebuilt on such architectures. 804 80520070516: 806 Improved INCLUDE_CONFIG_FILE support has been introduced to the 807 config(8) utility. In order to take advantage of this new 808 functionality, you are expected to recompile and install 809 src/usr.sbin/config. If you don't rebuild config(8), and your 810 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 811 build will be broken because of a missing "kernconfstring" 812 symbol. 813 81420070513: 815 Symbol versioning is enabled by default. To disable it, use 816 option WITHOUT_SYMVER. It is not advisable to attempt to 817 disable symbol versioning once it is enabled; your installworld 818 will break because a symbol version-less libc will get installed 819 before the install tools. As a result, the old install tools, 820 which previously had symbol dependencies to FBSD_1.0, will fail 821 because the freshly installed libc will not have them. 822 823 The default threading library (providing "libpthread") has been 824 changed to libthr. If you wish to have libkse as your default, 825 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 826 82720070423: 828 The ABI breakage in sendmail(8)'s libmilter has been repaired 829 so it is no longer necessary to recompile mail filters (aka, 830 milters). If you recompiled mail filters after the 20070408 831 note, it is not necessary to recompile them again. 832 83320070417: 834 The new trunk(4) driver has been renamed to lagg(4) as it better 835 reflects its purpose. ifconfig will need to be recompiled. 836 83720070408: 838 sendmail(8) has been updated to version 8.14.1. Mail filters 839 (aka, milters) compiled against the libmilter included in the 840 base operating system should be recompiled. 841 84220070302: 843 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 844 In order to use them one must agree to the respective LICENSE in 845 share/doc/legal and define legal.intel_<name>.license_ack=1 via 846 loader.conf(5) or kenv(1). Make sure to deinstall the now 847 deprecated modules from the respective firmware ports. 848 84920070228: 850 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 851 were removed from FreeBSD's libc. These originally came from INRIA 852 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 853 deprecated in previous releases. 854 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 855 replace it as a more portable (and re-entrant) API. 856 85720070224: 858 To support interrupt filtering a modification to the newbus API 859 has occurred, ABI was broken and __FreeBSD_version was bumped 860 to 700031. Please make sure that your kernel and modules are in 861 sync. For more info: 862 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 863 86420070224: 865 The IPv6 multicast forwarding code may now be loaded into GENERIC 866 kernels by loading the ip_mroute.ko module. This is built into the 867 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 868 set; see src.conf(5) for more information. 869 87020070214: 871 The output of netstat -r has changed. Without -n, we now only 872 print a "network name" without the prefix length if the network 873 address and mask exactly match a Class A/B/C network, and an entry 874 exists in the nsswitch "networks" map. 875 With -n, we print the full unabbreviated CIDR network prefix in 876 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 877 This change is in preparation for changes such as equal-cost 878 multipath, and to more generally assist operational deployment 879 of FreeBSD as a modern IPv4 router. 880 88120070210: 882 PIM has been turned on by default in the IPv4 multicast 883 routing code. The kernel option 'PIM' has now been removed. 884 PIM is now built by default if option 'MROUTING' is specified. 885 It may now be loaded into GENERIC kernels by loading the 886 ip_mroute.ko module. 887 88820070207: 889 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 890 has been removed. Its functionality may be achieved by explicitly 891 configuring gif(4) interfaces and using the 'phyint' keyword in 892 mrouted.conf. 893 XORP does not support source-routed IPv4 multicast tunnels nor the 894 integrated IPIP tunneling, therefore it is not affected by this 895 change. The __FreeBSD_version macro has been bumped to 700030. 896 89720061221: 898 Support for PCI Message Signalled Interrupts has been 899 re-enabled in the bge driver, only for those chips which are 900 believed to support it properly. If there are any problems, 901 MSI can be disabled completely by setting the 902 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 903 in the loader. 904 90520061214: 906 Support for PCI Message Signalled Interrupts has been 907 disabled again in the bge driver. Many revisions of the 908 hardware fail to support it properly. Support can be 909 re-enabled by removing the #define of BGE_DISABLE_MSI in 910 "src/sys/dev/bge/if_bge.c". 911 91220061214: 913 Support for PCI Message Signalled Interrupts has been added 914 to the bge driver. If there are any problems, MSI can be 915 disabled completely by setting the 'hw.pci.enable_msi' and 916 'hw.pci.enable_msix' tunables to 0 in the loader. 917 91820061205: 919 The removal of several facets of the experimental Threading 920 system from the kernel means that the proc and thread structures 921 have changed quite a bit. I suggest all kernel modules that might 922 reference these structures be recompiled.. Especially the 923 linux module. 924 92520061126: 926 Sound infrastructure has been updated with various fixes and 927 improvements. Most of the changes are pretty much transparent, 928 with exceptions of followings: 929 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 930 moved to their own dev sysctl nodes, for example: 931 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 932 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 933 own chardev in the form of "dsp%d.<function>%d", where <function> 934 is p = playback, r = record and v = virtual, respectively. Users 935 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 936 This does not affect those who are using "/dev/dsp". 937 93820061122: 939 geom(4)'s gmirror(8) class metadata structure has been 940 rev'd from v3 to v4. If you update across this point and 941 your metadata is converted for you, you will not be easily 942 able to downgrade since the /boot/kernel.old/geom_mirror.ko 943 kernel module will be unable to read the v4 metadata. You 944 can resolve this by doing from the loader(8) prompt: 945 946 set vfs.root.mountfrom="ufs:/dev/XXX" 947 948 where XXX is the root slice of one of the disks that composed 949 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 950 the array the same way you built it originally. 951 95220061122: 953 The following binaries have been disconnected from the build: 954 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 955 and mount_std. The functionality of these programs has been 956 moved into the mount program. For example, to mount a devfs 957 filesystem, instead of using mount_devfs, use: "mount -t devfs". 958 This does not affect entries in /etc/fstab, since entries in 959 /etc/fstab are always processed with "mount -t fstype". 960 96120061113: 962 Support for PCI Message Signalled Interrupts on i386 and amd64 963 has been added to the kernel and various drivers will soon be 964 updated to use MSI when it is available. If there are any problems, 965 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 966 and 'hw.pci.enable_msix' tunables to 0 in the loader. 967 96820061110: 969 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 970 The lockmgr object layout has been changed as a result of having 971 a lock_object embedded in it. As a consequence all file system 972 kernel modules must be re-compiled. The mutex profiling man page 973 has not yet been updated to reflect this change. 974 97520061026: 976 KSE in the kernel has now been made optional and turned on by 977 default. Use 'nooption KSE' in your kernel config to turn it 978 off. All kernel modules *must* be recompiled after this change. 979 There-after, modules from a KSE kernel should be compatible with 980 modules from a NOKSE kernel due to the temporary padding fields 981 added to 'struct proc'. 982 98320060929: 984 mrouted and its utilities have been removed from the base system. 985 98620060927: 987 Some ioctl(2) command codes have changed. Full backward ABI 988 compatibility is provided if the "options COMPAT_FREEBSD6" is 989 present in the kernel configuration file. Make sure to add 990 this option to your kernel config file, or recompile X.Org 991 and the rest of ports; otherwise they may refuse to work. 992 99320060924: 994 tcpslice has been removed from the base system. 995 99620060913: 997 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 998 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 999 systat needs to be rebuilt. 1000 100120060903: 1002 libpcap updated to v0.9.4 and tcpdump to v3.9.4 1003 100420060816: 1005 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 1006 for IPFIREWALL_FORWARD is now as it was before when it was first 1007 committed and for years after. The behaviour is now ON. 1008 100920060725: 1010 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 1011 Now it can decrypt files created from different architectures. 1012 Unfortunately, it is no longer able to decrypt a cipher text 1013 generated with an older version on 64 bit architectures. 1014 If you have such a file, you need old utility to decrypt it. 1015 101620060709: 1017 The interface version of the i4b kernel part has changed. So 1018 after updating the kernel sources and compiling a new kernel, 1019 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 1020 be rebuilt, and vice versa. 1021 102220060627: 1023 The XBOX kernel now defaults to the nfe(4) driver instead of 1024 the nve(4) driver. Please update your configuration 1025 accordingly. 1026 102720060514: 1028 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 1029 PCnet family of NICs has been removed. The new le(4) driver serves 1030 as an equivalent but cross-platform replacement with the pcn(4) 1031 driver still providing performance-optimized support for the subset 1032 of AMD Am79C971 PCnet-FAST and greater chips as before. 1033 103420060511: 1035 The machdep.* sysctls and the adjkerntz utility have been 1036 modified a bit. The new adjkerntz utility uses the new 1037 sysctl names and sysctlbyname() calls, so it may be impossible 1038 to run an old /sbin/adjkerntz utility in single-user mode 1039 with a new kernel. Replace the `adjkerntz -i' step before 1040 `make installworld' with: 1041 1042 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1043 1044 and proceed as usual with the rest of the installworld-stage 1045 steps. Otherwise, you risk installing binaries with their 1046 timestamp set several hours in the future, especially if 1047 you are running with local time set to GMT+X hours. 1048 104920060412: 1050 The ip6fw utility has been removed. The behavior provided by 1051 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1052 have been updated to deal with it. There are some rules that 1053 might not migrate cleanly. Use rc.firewall6 as a template to 1054 rewrite rules. 1055 105620060428: 1057 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1058 attachments have been removed. Make sure to configure scc(4) 1059 on sparc64. Note also that by default puc(4) will use uart(4) 1060 and not sio(4) for serial ports because interrupt handling has 1061 been optimized for multi-port serial cards and only uart(4) 1062 implements the interface to support it. 1063 106420060330: 1065 The scc(4) driver replaces puc(4) for Serial Communications 1066 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1067 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1068 configuration to make sure that the serial ports remain 1069 functional. 1070 107120060317: 1072 Most world/kernel related NO_* build options changed names. 1073 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1074 after FreeBSD ports) and should be set in /etc/src.conf 1075 (the src.conf(5) manpage is provided). Full backwards 1076 compatibility is maintained for the time being though it's 1077 highly recommended to start moving old options out of the 1078 system-wide /etc/make.conf file into the new /etc/src.conf 1079 while also properly renaming them. More conversions will 1080 likely follow. Posting to current@: 1081 1082 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1083 108420060305: 1085 The NETSMBCRYPTO kernel option has been retired because its 1086 functionality is always included in NETSMB and smbfs.ko now. 1087 108820060303: 1089 The TDFX_LINUX kernel option was retired and replaced by the 1090 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1091 kernel module. Loading it alone should suffice to get 3dfx support 1092 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1093 its dependencies. 1094 109520060204: 1096 The 'audit' group was added to support the new auditing functionality 1097 in the base system. Be sure to follow the directions for updating, 1098 including the requirement to run mergemaster -p. 1099 110020060201: 1101 The kernel ABI to file system modules was changed on i386. 1102 Please make sure that your kernel and modules are in sync. 1103 110420060118: 1105 This actually occured some time ago, but installing the kernel 1106 now also installs a bunch of symbol files for the kernel modules. 1107 This increases the size of /boot/kernel to about 67Mbytes. You 1108 will need twice this if you will eventually back this up to kernel.old 1109 on your next install. 1110 If you have a shortage of room in your root partition, you should add 1111 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1112 to your /etc/make.conf. 1113 111420060113: 1115 libc's malloc implementation has been replaced. This change has the 1116 potential to uncover application bugs that previously went unnoticed. 1117 See the malloc(3) manual page for more details. 1118 111920060112: 1120 The generic netgraph(4) cookie has been changed. If you upgrade 1121 kernel passing this point, you also need to upgrade userland 1122 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1123 112420060106: 1125 si(4)'s device files now contain the unit number. 1126 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1127 112820060106: 1129 The kernel ABI was mostly destroyed due to a change in the size 1130 of struct lock_object which is nested in other structures such 1131 as mutexes which are nested in all sorts of other structures. 1132 Make sure your kernel and modules are in sync. 1133 113420051231: 1135 The page coloring algorithm in the VM subsystem was converted 1136 from tuning with kernel options to autotuning. Please remove 1137 any PQ_* option except PQ_NOOPT from your kernel config. 1138 113920051211: 1140 The net80211-related tools in the tools/tools/ath directory 1141 have been moved to tools/tools/net80211 and renamed with a 1142 "wlan" prefix. Scripts that use them should be adjusted 1143 accordingly. 1144 114520051202: 1146 Scripts in the local_startup directories (as defined in 1147 /etc/defaults/rc.conf) that have the new rc.d semantics will 1148 now be run as part of the base system rcorder. If there are 1149 errors or problems with one of these local scripts, it could 1150 cause boot problems. If you encounter such problems, boot in 1151 single user mode, remove that script from the */rc.d directory. 1152 Please report the problem to the port's maintainer, and the 1153 freebsd-ports@freebsd.org mailing list. 1154 115520051129: 1156 The nodev mount option was deprecated in RELENG_6 (where it 1157 was a no-op), and is now unsupported. If you have nodev or dev listed 1158 in /etc/fstab, remove it, otherwise it will result in a mount error. 1159 116020051129: 1161 ABI between ipfw(4) and ipfw(8) has been changed. You need 1162 to rebuild ipfw(8) when rebuilding kernel. 1163 116420051108: 1165 rp(4)'s device files now contain the unit number. 1166 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1167 116820051029: 1169 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1170 Its /etc/rc.conf.d configuration file has been `ppp' from 1171 the beginning, and hence there is no need to touch it. 1172 117320051014: 1174 Now most modules get their build-time options from the kernel 1175 configuration file. A few modules still have fixed options 1176 due to their non-conformant implementation, but they will be 1177 corrected eventually. You may need to review the options of 1178 the modules in use, explicitly specify the non-default options 1179 in the kernel configuration file, and rebuild the kernel and 1180 modules afterwards. 1181 118220051001: 1183 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1184 to turn polling(4) on your interfaces. 1185 118620050927: 1187 The old bridge(4) implementation was retired. The new 1188 if_bridge(4) serves as a full functional replacement. 1189 119020050722: 1191 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1192 to conform to POSIX-2001. This change broke an ABI 1193 compatibility on 64 bit architecture. You have to recompile 1194 userland programs that use getaddrinfo(3) on 64 bit 1195 architecture. 1196 119720050711: 1198 RELENG_6 branched here. 1199 120020050629: 1201 The pccard_ifconfig rc.conf variable has been removed and a new 1202 variable, ifconfig_DEFAULT has been introduced. Unlike 1203 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1204 do not have ifconfig_ifn entries rather than just those in 1205 removable_interfaces. 1206 120720050616: 1208 Some previous versions of PAM have permitted the use of 1209 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1210 to third party PAM modules in /usr/local/lib. A change has been 1211 made to require the use of absolute paths in order to avoid 1212 ambiguity and dependence on library path configuration, which may 1213 affect existing configurations. 1214 121520050610: 1216 Major changes to network interface API. All drivers must be 1217 recompiled. Drivers not in the base system will need to be 1218 updated to the new APIs. 1219 122020050609: 1221 Changes were made to kinfo_proc in sys/user.h. Please recompile 1222 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1223 will not behave correctly. 1224 1225 The API and ABI for hwpmc(4) have changed with the addition 1226 of sampling support. Please recompile lib/libpmc(3) and 1227 usr.sbin/{pmcstat,pmccontrol}. 1228 122920050606: 1230 The OpenBSD dhclient was imported in place of the ISC dhclient 1231 and the network interface configuration scripts were updated 1232 accordingly. If you use DHCP to configure your interfaces, you 1233 must now run devd. Also, DNS updating was lost so you will need 1234 to find a workaround if you use this feature. 1235 1236 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1237 sure to run mergemaster -p (like you are supposed to do every time 1238 anyway). 1239 124020050605: 1241 if_bridge was added to the tree. This has changed struct ifnet. 1242 Please recompile userland and all network related modules. 1243 124420050603: 1245 The n_net of a struct netent was changed to an uint32_t, and 1246 1st argument of getnetbyaddr() was changed to an uint32_t, to 1247 conform to POSIX-2001. These changes broke an ABI 1248 compatibility on 64 bit architecture. With these changes, 1249 shlib major of libpcap was bumped. You have to recompile 1250 userland programs that use getnetbyaddr(3), getnetbyname(3), 1251 getnetent(3) and/or libpcap on 64 bit architecture. 1252 125320050528: 1254 Kernel parsing of extra options on '#!' first lines of shell 1255 scripts has changed. Lines with multiple options likely will 1256 fail after this date. For full details, please see 1257 http://people.freebsd.org/~gad/Updating-20050528.txt 1258 125920050503: 1260 The packet filter (pf) code has been updated to OpenBSD 3.7 1261 Please note the changed anchor syntax and the fact that 1262 authpf(8) now needs a mounted fdescfs(5) to function. 1263 126420050415: 1265 The NO_MIXED_MODE kernel option has been removed from the i386 1266 amd64 platforms as its use has been superceded by the new local 1267 APIC timer code. Any kernel config files containing this option 1268 should be updated. 1269 127020050227: 1271 The on-disk format of LC_CTYPE files was changed to be machine 1272 independent. Please make sure NOT to use NO_CLEAN buildworld 1273 when crossing this point. Crossing this point also requires 1274 recompile or reinstall of all locale depended packages. 1275 127620050225: 1277 The ifi_epoch member of struct if_data has been changed to 1278 contain the uptime at which the interface was created or the 1279 statistics zeroed rather then the wall clock time because 1280 wallclock time may go backwards. This should have no impact 1281 unless an snmp implementation is using this value (I know of 1282 none at this point.) 1283 128420050224: 1285 The acpi_perf and acpi_throttle drivers are now part of the 1286 acpi(4) main module. They are no longer built separately. 1287 128820050223: 1289 The layout of struct image_params has changed. You have to 1290 recompile all compatibility modules (linux, svr4, etc) for use 1291 with the new kernel. 1292 129320050223: 1294 The p4tcc driver has been merged into cpufreq(4). This makes 1295 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1296 compile in "device cpufreq" to restore this functionality. 1297 129820050220: 1299 The responsibility of recomputing the file system summary of 1300 a SoftUpdates-enabled dirty volume has been transferred to the 1301 background fsck. A rebuild of fsck(8) utility is recommended 1302 if you have updated the kernel. 1303 1304 To get the old behavior (recompute file system summary at mount 1305 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1306 mounting the new volume. 1307 130820050206: 1309 The cpufreq import is complete. As part of this, the sysctls for 1310 acpi(4) throttling have been removed. The power_profile script 1311 has been updated, so you can use performance/economy_cpu_freq in 1312 rc.conf(5) to set AC on/offline cpu frequencies. 1313 131420050206: 1315 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1316 requires recompiling libnetgraph and userland netgraph utilities. 1317 131820050114: 1319 Support for abbreviated forms of a number of ipfw options is 1320 now deprecated. Warnings are printed to stderr indicating the 1321 correct full form when a match occurs. Some abbreviations may 1322 be supported at a later date based on user feedback. To be 1323 considered for support, abbreviations must be in use prior to 1324 this commit and unlikely to be confused with current key words. 1325 132620041221: 1327 By a popular demand, a lot of NOFOO options were renamed 1328 to NO_FOO (see bsd.compat.mk for a full list). The old 1329 spellings are still supported, but will cause annoying 1330 warnings on stderr. Make sure you upgrade properly (see 1331 the COMMON ITEMS: section later in this file). 1332 133320041219: 1334 Auto-loading of ancillary wlan modules such as wlan_wep has 1335 been temporarily disabled; you need to statically configure 1336 the modules you need into your kernel or explicitly load them 1337 prior to use. Specifically, if you intend to use WEP encryption 1338 with an 802.11 device load/configure wlan_wep; if you want to 1339 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1340 and wlan_xauth as required. 1341 134220041213: 1343 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1344 (``enable lqr''), older versions would revert to LCP ECHO mode on 1345 negotiation failure. Now, ``enable echo'' is required for this 1346 behaviour. The ppp version number has been bumped to 3.4.2 to 1347 reflect the change. 1348 134920041201: 1350 The wlan support has been updated to split the crypto support 1351 into separate modules. For static WEP you must configure the 1352 wlan_wep module in your system or build and install the module 1353 in place where it can be loaded (the kernel will auto-load 1354 the module when a wep key is configured). 1355 135620041201: 1357 The ath driver has been updated to split the tx rate control 1358 algorithm into a separate module. You need to include either 1359 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1360 136120041116: 1362 Support for systems with an 80386 CPU has been removed. Please 1363 use FreeBSD 5.x or earlier on systems with an 80386. 1364 136520041110: 1366 We have had a hack which would mount the root filesystem 1367 R/W if the device were named 'md*'. As part of the vnode 1368 work I'm doing I have had to remove this hack. People 1369 building systems which use preloaded MD root filesystems 1370 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1371 their /etc/rc scripts. 1372 137320041104: 1374 FreeBSD 5.3 shipped here. 1375 137620041102: 1377 The size of struct tcpcb has changed again due to the removal 1378 of RFC1644 T/TCP. You have to recompile userland programs that 1379 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1380 138120041022: 1382 The size of struct tcpcb has changed. You have to recompile 1383 userland programs that read kmem for tcp sockets directly 1384 (netstat, sockstat, etc.) 1385 138620041016: 1387 RELENG_5 branched here. For older entries, please see updating 1388 in the RELENG_5 branch. 1389 1390COMMON ITEMS: 1391 1392 General Notes 1393 ------------- 1394 Avoid using make -j when upgrading. From time to time in the 1395 past there have been problems using -j with buildworld and/or 1396 installworld. This is especially true when upgrading between 1397 "distant" versions (eg one that cross a major release boundary 1398 or several minor releases, or when several months have passed 1399 on the -current branch). 1400 1401 Sometimes, obscure build problems are the result of environment 1402 poisoning. This can happen because the make utility reads its 1403 environment when searching for values for global variables. 1404 To run your build attempts in an "environmental clean room", 1405 prefix all make commands with 'env -i '. See the env(1) manual 1406 page for more details. 1407 1408 When upgrading from one major version to another it is generally 1409 best to upgrade to the latest code in the currently installed branch 1410 first, then do an upgrade to the new branch. This is the best-tested 1411 upgrade path, and has the highest probability of being successful. 1412 Please try this approach before reporting problems with a major 1413 version upgrade. 1414 1415 To build a kernel 1416 ----------------- 1417 If you are updating from a prior version of FreeBSD (even one just 1418 a few days old), you should follow this procedure. It is the most 1419 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1420 1421 make kernel-toolchain 1422 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1423 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1424 1425 To test a kernel once 1426 --------------------- 1427 If you just want to boot a kernel once (because you are not sure 1428 if it works, or if you want to boot a known bad kernel to provide 1429 debugging information) run 1430 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1431 nextboot -k testkernel 1432 1433 To just build a kernel when you know that it won't mess you up 1434 -------------------------------------------------------------- 1435 This assumes you are already running a 5.X system. Replace 1436 ${arch} with the architecture of your machine (e.g. "i386", 1437 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1438 1439 cd src/sys/${arch}/conf 1440 config KERNEL_NAME_HERE 1441 cd ../compile/KERNEL_NAME_HERE 1442 make depend 1443 make 1444 make install 1445 1446 If this fails, go to the "To build a kernel" section. 1447 1448 To rebuild everything and install it on the current system. 1449 ----------------------------------------------------------- 1450 # Note: sometimes if you are running current you gotta do more than 1451 # is listed here if you are upgrading from a really old current. 1452 1453 <make sure you have good level 0 dumps> 1454 make buildworld 1455 make kernel KERNCONF=YOUR_KERNEL_HERE 1456 [1] 1457 <reboot in single user> [3] 1458 mergemaster -p [5] 1459 make installworld 1460 make delete-old 1461 mergemaster [4] 1462 <reboot> 1463 1464 1465 To cross-install current onto a separate partition 1466 -------------------------------------------------- 1467 # In this approach we use a separate partition to hold 1468 # current's root, 'usr', and 'var' directories. A partition 1469 # holding "/", "/usr" and "/var" should be about 2GB in 1470 # size. 1471 1472 <make sure you have good level 0 dumps> 1473 <boot into -stable> 1474 make buildworld 1475 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1476 <maybe newfs current's root partition> 1477 <mount current's root partition on directory ${CURRENT_ROOT}> 1478 make installworld DESTDIR=${CURRENT_ROOT} 1479 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1480 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1481 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1482 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1483 <reboot into current> 1484 <do a "native" rebuild/install as described in the previous section> 1485 <maybe install compatibility libraries from ports/misc/compat*> 1486 <reboot> 1487 1488 1489 To upgrade in-place from 5.x-stable to current 1490 ---------------------------------------------- 1491 <make sure you have good level 0 dumps> 1492 make buildworld [9] 1493 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1494 [1] 1495 <reboot in single user> [3] 1496 mergemaster -p [5] 1497 make installworld 1498 make delete-old 1499 mergemaster -i [4] 1500 <reboot> 1501 1502 Make sure that you've read the UPDATING file to understand the 1503 tweaks to various things you need. At this point in the life 1504 cycle of current, things change often and you are on your own 1505 to cope. The defaults can also change, so please read ALL of 1506 the UPDATING entries. 1507 1508 Also, if you are tracking -current, you must be subscribed to 1509 freebsd-current@freebsd.org. Make sure that before you update 1510 your sources that you have read and understood all the recent 1511 messages there. If in doubt, please track -stable which has 1512 much fewer pitfalls. 1513 1514 [1] If you have third party modules, such as vmware, you 1515 should disable them at this point so they don't crash your 1516 system on reboot. 1517 1518 [3] From the bootblocks, boot -s, and then do 1519 fsck -p 1520 mount -u / 1521 mount -a 1522 cd src 1523 adjkerntz -i # if CMOS is wall time 1524 Also, when doing a major release upgrade, it is required that 1525 you boot into single user mode to do the installworld. 1526 1527 [4] Note: This step is non-optional. Failure to do this step 1528 can result in a significant reduction in the functionality of the 1529 system. Attempting to do it by hand is not recommended and those 1530 that pursue this avenue should read this file carefully, as well 1531 as the archives of freebsd-current and freebsd-hackers mailing lists 1532 for potential gotchas. 1533 1534 [5] Usually this step is a noop. However, from time to time 1535 you may need to do this if you get unknown user in the following 1536 step. It never hurts to do it all the time. You may need to 1537 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1538 install) after the buildworld before this step if you last updated 1539 from current before 20020224 or from -stable before 20020408. 1540 1541 [8] In order to have a kernel that can run the 4.x binaries 1542 needed to do an installworld, you must include the COMPAT_FREEBSD4 1543 option in your kernel. Failure to do so may leave you with a system 1544 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1545 is required to run the 5.x binaries on more recent kernels. 1546 1547 Make sure that you merge any new devices from GENERIC since the 1548 last time you updated your kernel config file. 1549 1550 [9] When checking out sources, you must include the -P flag to have 1551 cvs prune empty directories. 1552 1553 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1554 "?=" instead of the "=" assignment operator, so that buildworld can 1555 override the CPUTYPE if it needs to. 1556 1557 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1558 not on the command line, or in /etc/make.conf. buildworld will 1559 warn if it is improperly defined. 1560FORMAT: 1561 1562This file contains a list, in reverse chronological order, of major 1563breakages in tracking -current. Not all things will be listed here, 1564and it only starts on October 16, 2004. Updating files can found in 1565previous releases if your system is older than this. 1566 1567Copyright information: 1568 1569Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1570 1571Redistribution, publication, translation and use, with or without 1572modification, in full or in part, in any form or format of this 1573document are permitted without further permission from the author. 1574 1575THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1576IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1577WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1578DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1579INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1580(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1581SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1582HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1583STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1584IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1585POSSIBILITY OF SUCH DAMAGE. 1586 1587If you find this document useful, and you want to, you may buy the 1588author a beer. 1589 1590Contact Warner Losh if you have any questions about your use of 1591this document. 1592 1593$FreeBSD: head/UPDATING 194012 2009-06-11 16:50:49Z zec $ 1594