UPDATING revision 193285
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 2520090601: 26 The way we are storing and accessing `routing table' entries 27 has changed. Programs reading the FIB, like netstat, need to 28 be re-compiled. 29 3020090601: 31 A new netisr implementation has been added for FreeBSD 8. Network 32 file system modules, such as igmp, ipdivert, and others, should be 33 rebuilt. 34 Bump __FreeBSD_version to 800096. 35 3620090531: 37 For those who use ipfw and especially pf, those two firewalls 38 are now started BEFORE the network is initialized (i.e., before 39 rc.d/netif). Please review your rules to make sure that your 40 interfaces will be properly described. 41 4220090530: 43 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose 44 is no more valid. 45 4620090530: 47 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 48 Bump __FreeBSD_version to 800094. 49 5020090529: 51 Add mnt_xflag field to 'struct mount'. File system modules 52 need to be rebuilt. 53 Bump __FreeBSD_version to 800093. 54 5520090528: 56 The compiling option ADAPTIVE_SX has been retired while it has been 57 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 58 The KPI for sx_init_flags() changes as accepting flags: 59 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag 60 has been introduced in order to handle the reversed logic. 61 Bump __FreeBSD_version to 800092. 62 6320090527: 64 Add support for hierarchical jails. Remove global securelevel. 65 Bump __FreeBSD_version to 800091. 66 6720090523: 68 The layout of struct vnet_net has changed, therefore modules 69 need to be rebuilt. 70 Bump __FreeBSD_version to 800090. 71 7220090523: 73 The newly imported zic(8) produces a new format in the 74 output. Please run tzsetup(8) to install the newly created 75 data to /etc/localtime. 76 7720090520: 78 The sysctl tree for the usb stack has renamed from hw.usb2.* to 79 hw.usb.* and is now consistent again with previous releases. 80 8120090520: 82 802.11 monitor mode support was revised and driver api's 83 were changed. Drivers dependent on net80211 now support 84 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No 85 user-visible data structures were changed but applications 86 that use DLT_IEEE802_11 may require changes. 87 Bump __FreeBSD_version to 800088. 88 8920090430: 90 The layout of the following structs has changed: sysctl_oid, 91 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 92 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 93 panics may be experienced. World rebuild is required for 94 correctly checking networking state from userland. 95 Bump __FreeBSD_version to 800085. 96 9720090429: 98 MLDv2 and Source-Specific Multicast (SSM) have been merged 99 to the IPv6 stack. VIMAGE hooks are in but not yet used. 100 The implementation of SSM within FreeBSD's IPv6 stack closely 101 follows the IPv4 implementation. 102 103 For kernel developers: 104 105 * The most important changes are that the ip6_output() and 106 ip6_input() paths no longer take the IN6_MULTI_LOCK, 107 and this lock has been downgraded to a non-recursive mutex. 108 109 * As with the changes to the IPv4 stack to support SSM, filtering 110 of inbound multicast traffic must now be performed by transport 111 protocols within the IPv6 stack. This does not apply to TCP and 112 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 113 114 * The KPIs used by IPv6 multicast are similar to those used by 115 the IPv4 stack, with the following differences: 116 * im6o_mc_filter() is analogous to imo_multicast_filter(). 117 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 118 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 119 * IN6_LOOKUP_MULTI() has been deprecated and removed. 120 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 121 for MLDv1 have an additional 'timer' argument which is used to 122 jitter the initial membership report for the solicited-node 123 multicast membership on-link. 124 * This is not strictly needed for MLDv2, which already jitters 125 its report transmissions. However, the 'timer' argument is 126 preserved in case MLDv1 is active on the interface. 127 128 * The KAME linked-list based IPv6 membership implementation has 129 been refactored to use a vector similar to that used by the IPv4 130 stack. 131 Code which maintains a list of its own multicast memberships 132 internally, e.g. carp, has been updated to reflect the new 133 semantics. 134 135 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 136 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 137 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 138 implementation constraint which needs to be addressed in HEAD. 139 140 For application developers: 141 142 * The changes are broadly similar to those made for the IPv4 143 stack. 144 145 * The use of IPv4 and IPv6 multicast socket options on the same 146 socket, using mapped addresses, HAS NOT been tested or supported. 147 148 * There are a number of issues with the implementation of various 149 IPv6 multicast APIs which need to be resolved in the API surface 150 before the implementation is fully compatible with KAME userland 151 use, and these are mostly to do with interface index treatment. 152 153 * The literature available discusses the use of either the delta / ASM 154 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 155 using setsourcefilter(3)/getsourcefilter(3). For more information 156 please refer to RFC 3768, 'Socket Interface Extensions for 157 Multicast Source Filters'. 158 159 * Applications which use the published RFC 3678 APIs should be fine. 160 161 For systems administrators: 162 163 * The mtest(8) utility has been refactored to support IPv6, in 164 addition to IPv4. Interface addresses are no longer accepted 165 as arguments, their names must be used instead. The utility 166 will map the interface name to its first IPv4 address as 167 returned by getifaddrs(3). 168 169 * The ifmcstat(8) utility has also been updated to print the MLDv2 170 endpoint state and source filter lists via sysctl(3). 171 172 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 173 loopback of IPv6 multicast datagrams by default; it defaults to 1 174 to preserve the existing behaviour. Disabling multicast loopback is 175 recommended for optimal system performance. 176 177 * The IPv6 MROUTING code has been changed to examine this sysctl 178 instead of attempting to perform a group lookup before looping 179 back forwarded datagrams. 180 181 Bump __FreeBSD_version to 800084. 182 18320090422: 184 Implement low-level Bluetooth HCI API. 185 Bump __FreeBSD_version to 800083. 186 18720090419: 188 The layout of struct malloc_type, used by modules to register new 189 memory allocation types, has changed. Most modules will need to 190 be rebuilt or panics may be experienced. 191 Bump __FreeBSD_version to 800081. 192 19320090415: 194 Anticipate overflowing inp_flags - add inp_flags2. 195 This changes most offsets in inpcb, so checking v4 connection 196 state will require a world rebuild. 197 Bump __FreeBSD_version to 800080. 198 19920090415: 200 Add an llentry to struct route and struct route_in6. Modules 201 embedding a struct route will need to be recompiled. 202 Bump __FreeBSD_version to 800079. 203 20420090414: 205 The size of rt_metrics_lite and by extension rtentry has changed. 206 Networking administration apps will need to be recompiled. 207 The route command now supports show as an alias for get, weighting 208 of routes, sticky and nostick flags to alter the behavior of stateful 209 load balancing. 210 Bump __FreeBSD_version to 800078. 211 21220090408: 213 Do not use Giant for kbdmux(4) locking. This is wrong and 214 apparently causing more problems than it solves. This will 215 re-open the issue where interrupt handlers may race with 216 kbdmux(4) in polling mode. Typical symptoms include (but 217 not limited to) duplicated and/or missing characters when 218 low level console functions (such as gets) are used while 219 interrupts are enabled (for example geli password prompt, 220 mountroot prompt etc.). Disabling kbdmux(4) may help. 221 22220090407: 223 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 224 kernel modules referencing any of the above need to be recompiled. 225 Bump __FreeBSD_version to 800075. 226 22720090320: 228 GEOM_PART has become the default partition slicer for storage devices, 229 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 230 introduces some changes: 231 232 MSDOS/EBR: the devices created from MSDOS extended partition entries 233 (EBR) can be named differently than with GEOM_MBR and are now symlinks 234 to devices with offset-based names. fstabs may need to be modified. 235 236 BSD: the "geometry does not match label" warning is harmless in most 237 cases but it points to problems in file system misalignment with 238 disk geometry. The "c" partition is now implicit, covers the whole 239 top-level drive and cannot be (mis)used by users. 240 241 General: Kernel dumps are now not allowed to be written to devices 242 whose partition types indicate they are meant to be used for file 243 systems (or, in case of MSDOS partitions, as something else than 244 the "386BSD" type). 245 246 Most of these changes date approximately from 200812. 247 24820090319: 249 The uscanner(4) driver has been removed from the kernel. This follows 250 Linux removing theirs in 2.6 and making libusb the default interface 251 (supported by sane). 252 25320090319: 254 The multicast forwarding code has been cleaned up. netstat(1) 255 only relies on KVM now for printing bandwidth upcall meters. 256 The IPv4 and IPv6 modules are split into ip_mroute_mod and 257 ip6_mroute_mod respectively. The config(5) options for statically 258 compiling this code remain the same, i.e. 'options MROUTING'. 259 26020090315: 261 Support for the IFF_NEEDSGIANT network interface flag has been 262 removed, which means that non-MPSAFE network device drivers are no 263 longer supported. In particular, if_ar, if_sr, and network device 264 drivers from the old (legacy) USB stack can no longer be built or 265 used. 266 26720090313: 268 POSIX.1 Native Language Support (NLS) has been enabled in libc and 269 a bunch of new language catalog files have also been added. 270 This means that some common libc messages are now localized and 271 they depend on the LC_MESSAGES environmental variable. 272 27320090313: 274 The k8temp(4) driver has been renamed to amdtemp(4) since 275 support for K10 and K11 CPU families was added. 276 27720090309: 278 IGMPv3 and Source-Specific Multicast (SSM) have been merged 279 to the IPv4 stack. VIMAGE hooks are in but not yet used. 280 281 For kernel developers, the most important changes are that the 282 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 283 and this lock has been downgraded to a non-recursive mutex. 284 285 Transport protocols (UDP, Raw IP) are now responsible for filtering 286 inbound multicast traffic according to group membership and source 287 filters. The imo_multicast_filter() KPI exists for this purpose. 288 Transports which do not use multicast (SCTP, TCP) already reject 289 multicast by default. Forwarding and receive performance may improve 290 as a mutex acquisition is no longer needed in the ip_input() 291 low-level input path. in_addmulti() and in_delmulti() are shimmed 292 to new KPIs which exist to support SSM in-kernel. 293 294 For application developers, it is recommended that loopback of 295 multicast datagrams be disabled for best performance, as this 296 will still cause the lock to be taken for each looped-back 297 datagram transmission. The net.inet.ip.mcast.loop sysctl may 298 be tuned to 0 to disable loopback by default; it defaults to 1 299 to preserve the existing behaviour. 300 301 For systems administrators, to obtain best performance with 302 multicast reception and multiple groups, it is always recommended 303 that a card with a suitably precise hash filter is used. Hash 304 collisions will still result in the lock being taken within the 305 transport protocol input path to check group membership. 306 307 If deploying FreeBSD in an environment with IGMP snooping switches, 308 it is recommended that the net.inet.igmp.sendlocal sysctl remain 309 enabled; this forces 224.0.0.0/24 group membership to be announced 310 via IGMP. 311 312 The size of 'struct igmpstat' has changed; netstat needs to be 313 recompiled to reflect this. 314 Bump __FreeBSD_version to 800070. 315 31620090309: 317 libusb20.so.1 is now installed as libusb.so.1 and the ports system 318 updated to use it. This requires a buildworld/installworld in order to 319 update the library and dependencies (usbconfig, etc). Its advisable to 320 rebuild all ports which uses libusb. More specific directions are given 321 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 322 libusb are no longer required and can be removed. 323 32420090302: 325 A workaround is committed to allow the creation of System V shared 326 memory segment of size > 2 GB on the 64-bit architectures. 327 Due to a limitation of the existing ABI, the shm_segsz member 328 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 329 wrong for large segments. Note that limits must be explicitly 330 raised to allow such segments to be created. 331 33220090301: 333 The layout of struct ifnet has changed, requiring a rebuild of all 334 network device driver modules. 335 33620090227: 337 The /dev handling for the new USB stack has changed, a 338 buildworld/installworld is required for libusb20. 339 34020090223: 341 The new USB2 stack has now been permanently moved in and all kernel and 342 module names reverted to their previous values (eg, usb, ehci, ohci, 343 ums, ...). The old usb stack can be compiled in by prefixing the name 344 with the letter 'o', the old usb modules have been removed. 345 Updating entry 20090216 for xorg and 20090215 for libmap may still 346 apply. 347 34820090217: 349 The rc.conf(5) option if_up_delay has been renamed to 350 defaultroute_delay to better reflect its purpose. If you have 351 customized this setting in /etc/rc.conf you need to update it to 352 use the new name. 353 35420090216: 355 xorg 7.4 wants to configure its input devices via hald which does not 356 yet work with USB2. If the keyboard/mouse does not work in xorg then 357 add 358 Option "AllowEmptyInput" "off" 359 to your ServerLayout section. This will cause X to use the configured 360 kbd and mouse sections from your xorg.conf. 361 36220090215: 363 The GENERIC kernels for all architectures now default to the new USB2 364 stack. No kernel config options or code have been removed so if a 365 problem arises please report it and optionally revert to the old USB 366 stack. If you are loading USB kernel modules or have a custom kernel 367 that includes GENERIC then ensure that usb names are also changed over, 368 eg uftdi -> usb2_serial_ftdi. 369 370 Older programs linked against the ports libusb 0.1 need to be 371 redirected to the new stack's libusb20. /etc/libmap.conf can 372 be used for this: 373 # Map old usb library to new one for usb2 stack 374 libusb-0.1.so.8 libusb20.so.1 375 37620090203: 377 The ichsmb(4) driver has been changed to require SMBus slave 378 addresses be left-justified (xxxxxxx0b) rather than right-justified. 379 All of the other SMBus controller drivers require left-justified 380 slave addresses, so this change makes all the drivers provide the 381 same interface. 382 38320090201: 384 INET6 statistics (struct ip6stat) was updated. 385 netstat(1) needs to be recompiled. 386 38720090119: 388 NTFS has been removed from GENERIC kernel on amd64 to match 389 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 390 will load ntfs.ko module automatically when NTFS support is 391 actually needed, unless ntfs.ko is not installed or security 392 level prohibits loading kernel modules. If either is the case, 393 "options NTFS" has to be added into kernel config. 394 39520090115: 396 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 397 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 398 800061. User space tools that rely on the size of struct tcpcb in 399 tcp_var.h (e.g. sockstat) need to be recompiled. 400 40120081225: 402 ng_tty(4) module updated to match the new TTY subsystem. 403 Due to API change, user-level applications must be updated. 404 New API support added to mpd5 CVS and expected to be present 405 in next mpd5.3 release. 406 40720081219: 408 With __FreeBSD_version 800060 the makefs tool is part of 409 the base system (it was a port). 410 41120081216: 412 The afdata and ifnet locks have been changed from mutexes to 413 rwlocks, network modules will need to be re-compiled. 414 41520081214: 416 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 417 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 418 The new code reduced struct rtentry{} by 16 bytes on 32-bit 419 architecture and 40 bytes on 64-bit architecture. The userland 420 applications "arp" and "ndp" have been updated accordingly. 421 The output from "netstat -r" shows only routing entries and 422 none of the L2 information. 423 42420081130: 425 __FreeBSD_version 800057 marks the switchover from the 426 binary ath hal to source code. Users must add the line: 427 428 options AH_SUPPORT_AR5416 429 430 to their kernel config files when specifying: 431 432 device ath_hal 433 434 The ath_hal module no longer exists; the code is now compiled 435 together with the driver in the ath module. It is now 436 possible to tailor chip support (i.e. reduce the set of chips 437 and thereby the code size); consult ath_hal(4) for details. 438 43920081121: 440 __FreeBSD_version 800054 adds memory barriers to 441 <machine/atomic.h>, new interfaces to ifnet to facilitate 442 multiple hardware transmit queues for cards that support 443 them, and a lock-less ring-buffer implementation to 444 enable drivers to more efficiently manage queueing of 445 packets. 446 44720081117: 448 A new version of ZFS (version 13) has been merged to -HEAD. 449 This version has zpool attribute "listsnapshots" off by 450 default, which means "zfs list" does not show snapshots, 451 and is the same as Solaris behavior. 452 45320081028: 454 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 455 45620081009: 457 The uhci, ohci, ehci and slhci USB Host controller drivers have 458 been put into separate modules. If you load the usb module 459 separately through loader.conf you will need to load the 460 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 461 controller add the following to loader.conf: 462 463 uhci_load="YES" 464 ehci_load="YES" 465 46620081009: 467 The ABI used by the PMC toolset has changed. Please keep 468 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 469 sync. 470 47120080820: 472 The TTY subsystem of the kernel has been replaced by a new 473 implementation, which provides better scalability and an 474 improved driver model. Most common drivers have been migrated to 475 the new TTY subsystem, while others have not. The following 476 drivers have not yet been ported to the new TTY layer: 477 478 PCI/ISA: 479 cy, digi, rc, rp, sio 480 481 USB: 482 ubser, ucycom 483 484 Line disciplines: 485 ng_h4, ng_tty, ppp, sl, snp 486 487 Adding these drivers to your kernel configuration file shall 488 cause compilation to fail. 489 49020080818: 491 ntpd has been upgraded to 4.2.4p5. 492 49320080801: 494 OpenSSH has been upgraded to 5.1p1. 495 496 For many years, FreeBSD's version of OpenSSH preferred DSA 497 over RSA for host and user authentication keys. With this 498 upgrade, we've switched to the vendor's default of RSA over 499 DSA. This may cause upgraded clients to warn about unknown 500 host keys even for previously known hosts. Users should 501 follow the usual procedure for verifying host keys before 502 accepting the RSA key. 503 504 This can be circumvented by setting the "HostKeyAlgorithms" 505 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 506 command line. 507 508 Please note that the sequence of keys offered for 509 authentication has been changed as well. You may want to 510 specify IdentityFile in a different order to revert this 511 behavior. 512 51320080713: 514 The sio(4) driver has been removed from the i386 and amd64 515 kernel configuration files. This means uart(4) is now the 516 default serial port driver on those platforms as well. 517 518 To prevent collisions with the sio(4) driver, the uart(4) driver 519 uses different names for its device nodes. This means the 520 onboard serial port will now most likely be called "ttyu0" 521 instead of "ttyd0". You may need to reconfigure applications to 522 use the new device names. 523 524 When using the serial port as a boot console, be sure to update 525 /boot/device.hints and /etc/ttys before booting the new kernel. 526 If you forget to do so, you can still manually specify the hints 527 at the loader prompt: 528 529 set hint.uart.0.at="isa" 530 set hint.uart.0.port="0x3F8" 531 set hint.uart.0.flags="0x10" 532 set hint.uart.0.irq="4" 533 boot -s 534 53520080609: 536 The gpt(8) utility has been removed. Use gpart(8) to partition 537 disks instead. 538 53920080603: 540 The version that Linuxulator emulates was changed from 2.4.2 541 to 2.6.16. If you experience any problems with Linux binaries 542 please try to set sysctl compat.linux.osrelease to 2.4.2 and 543 if it fixes the problem contact emulation mailing list. 544 54520080525: 546 ISDN4BSD (I4B) was removed from the src tree. You may need to 547 update a your kernel configuration and remove relevant entries. 548 54920080509: 550 I have checked in code to support multiple routing tables. 551 See the man pages setfib(1) and setfib(2). 552 This is a hopefully backwards compatible version, 553 but to make use of it you need to compile your kernel 554 with options ROUTETABLES=2 (or more up to 16). 555 55620080420: 557 The 802.11 wireless support was redone to enable multi-bss 558 operation on devices that are capable. The underlying device 559 is no longer used directly but instead wlanX devices are 560 cloned with ifconfig. This requires changes to rc.conf files. 561 For example, change: 562 ifconfig_ath0="WPA DHCP" 563 to 564 wlans_ath0=wlan0 565 ifconfig_wlan0="WPA DHCP" 566 see rc.conf(5) for more details. In addition, mergemaster of 567 /etc/rc.d is highly recommended. Simultaneous update of userland 568 and kernel wouldn't hurt either. 569 570 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 571 modules were merged into the base wlan module. All references 572 to these modules (e.g. in kernel config files) must be removed. 573 57420080408: 575 psm(4) has gained write(2) support in native operation level. 576 Arbitrary commands can be written to /dev/psm%d and status can 577 be read back from it. Therefore, an application is responsible 578 for status validation and error recovery. It is a no-op in 579 other operation levels. 580 58120080312: 582 Support for KSE threading has been removed from the kernel. To 583 run legacy applications linked against KSE libmap.conf may 584 be used. The following libmap.conf may be used to ensure 585 compatibility with any prior release: 586 587 libpthread.so.1 libthr.so.1 588 libpthread.so.2 libthr.so.2 589 libkse.so.3 libthr.so.3 590 59120080301: 592 The layout of struct vmspace has changed. This affects libkvm 593 and any executables that link against libkvm and use the 594 kvm_getprocs() function. In particular, but not exclusively, 595 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 596 The effects are minimal, but it's advisable to upgrade world 597 nonetheless. 598 59920080229: 600 The latest em driver no longer has support in it for the 601 82575 adapter, this is now moved to the igb driver. The 602 split was done to make new features that are incompatible 603 with older hardware easier to do. 604 60520080220: 606 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 607 likewise the kernel option is now GEOM_LINUX_LVM. 608 60920080211: 610 The default NFS mount mode has changed from UDP to TCP for 611 increased reliability. If you rely on (insecurely) NFS 612 mounting across a firewall you may need to update your 613 firewall rules. 614 61520080208: 616 Belatedly note the addition of m_collapse for compacting 617 mbuf chains. 618 61920080126: 620 The fts(3) structures have been changed to use adequate 621 integer types for their members and so to be able to cope 622 with huge file trees. The old fts(3) ABI is preserved 623 through symbol versioning in libc, so third-party binaries 624 using fts(3) should still work, although they will not take 625 advantage of the extended types. At the same time, some 626 third-party software might fail to build after this change 627 due to unportable assumptions made in its source code about 628 fts(3) structure members. Such software should be fixed 629 by its vendor or, in the worst case, in the ports tree. 630 FreeBSD_version 800015 marks this change for the unlikely 631 case that a portable fix is impossible. 632 63320080123: 634 To upgrade to -current after this date, you must be running 635 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 636 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 637 63820071128: 639 The ADAPTIVE_GIANT kernel option has been retired because its 640 functionality is the default now. 641 64220071118: 643 The AT keyboard emulation of sunkbd(4) has been turned on 644 by default. In order to make the special symbols of the Sun 645 keyboards driven by sunkbd(4) work under X these now have 646 to be configured the same way as Sun USB keyboards driven 647 by ukbd(4) (which also does AT keyboard emulation), f.e.: 648 649 Option "XkbLayout" "us" 650 Option "XkbRules" "xorg" 651 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 652 65320071024: 654 It has been decided that it is desirable to provide ABI 655 backwards compatibility to the FreeBSD 4/5/6 versions of the 656 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 657 broken with the introduction of PCI domain support (see the 658 20070930 entry). Unfortunately, this required the ABI of 659 PCIOCGETCONF to be broken again in order to be able to 660 provide backwards compatibility to the old version of that 661 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 662 again. As for prominent ports this affects neither pciutils 663 nor xorg-server this time, the hal port needs to be rebuilt 664 however. 665 66620071020: 667 The misnamed kthread_create() and friends have been renamed 668 to kproc_create() etc. Many of the callers already 669 used kproc_start().. 670 I will return kthread_create() and friends in a while 671 with implementations that actually create threads, not procs. 672 Renaming corresponds with version 800002. 673 67420071010: 675 RELENG_7 branched. 676 67720071009: 678 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and 679 WITHOUT_LIBTHR are set. 680 68120070930: 682 The PCI code has been made aware of PCI domains. This means that 683 the location strings as used by pciconf(8) etc are now in the 684 following format: pci<domain>:<bus>:<device>[:<function>]. It 685 also means that consumers of <sys/pciio.h> potentially need to 686 be recompiled; this includes the hal and xorg-server ports. 687 68820070928: 689 The caching daemon (cached) was renamed to nscd. nscd.conf 690 configuration file should be used instead of cached.conf and 691 nscd_enable, nscd_pidfile and nscd_flags options should be used 692 instead of cached_enable, cached_pidfile and cached_flags in 693 rc.conf. 694 69520070921: 696 The getfacl(1) utility now prints owning user and group name 697 instead of owning uid and gid in the three line comment header. 698 This is the same behavior as getfacl(1) on Solaris and Linux. 699 70020070704: 701 The new IPsec code is now compiled in using the IPSEC option. The 702 IPSEC option now requires "device crypto" be defined in your kernel 703 configuration. The FAST_IPSEC kernel option is now deprecated. 704 70520070702: 706 The packet filter (pf) code has been updated to OpenBSD 4.1 Please 707 note the changed syntax - keep state is now on by default. Also 708 note the fact that ftp-proxy(8) has been changed from bottom up and 709 has been moved from libexec to usr/sbin. Changes in the ALTQ 710 handling also affect users of IPFW's ALTQ capabilities. 711 71220070701: 713 Remove KAME IPsec in favor of FAST_IPSEC, which is now the 714 only IPsec supported by FreeBSD. The new IPsec stack 715 supports both IPv4 and IPv6. The kernel option will change 716 after the code changes have settled in. For now the kernel 717 option IPSEC is deprecated and FAST_IPSEC is the only option, that 718 will change after some settling time. 719 72020070701: 721 The wicontrol(8) utility has been removed from the base system. wi(4) 722 cards should be configured using ifconfig(8), see the man page for more 723 information. 724 72520070612: 726 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver 727 instead of the nve(4) driver. Please update your configuration 728 accordingly. 729 73020070612: 731 By default, /etc/rc.d/sendmail no longer rebuilds the aliases 732 database if it is missing or older than the aliases file. If 733 desired, set the new rc.conf option sendmail_rebuild_aliases 734 to "YES" to restore that functionality. 735 73620070612: 737 The IPv4 multicast socket code has been considerably modified, and 738 moved to the file sys/netinet/in_mcast.c. Initial support for the 739 RFC 3678 Source-Specific Multicast Socket API has been added to 740 the IPv4 network stack. 741 742 Strict multicast and broadcast reception is now the default for 743 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable 744 has now been removed. 745 746 The RFC 1724 hack for interface selection has been removed; the use 747 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has 748 been added to replace it. Consumers such as routed will soon be 749 updated to reflect this. 750 751 These changes affect users who are running routed(8) or rdisc(8) 752 from the FreeBSD base system on point-to-point or unnumbered 753 interfaces. 754 75520070610: 756 The net80211 layer has changed significantly and all wireless 757 drivers that depend on it need to be recompiled. Further these 758 changes require that any program that interacts with the wireless 759 support in the kernel be recompiled; this includes: ifconfig, 760 wpa_supplicant, hostapd, and wlanstats. Users must also, for 761 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules 762 if they use modules for wireless support. These modules implement 763 scanning support for station and ap modes, respectively. Failure 764 to load the appropriate module before marking a wireless interface 765 up will result in a message to the console and the device not 766 operating properly. 767 76820070610: 769 The pam_nologin(8) module ceases to provide an authentication 770 function and starts providing an account management function. 771 Consequent changes to /etc/pam.d should be brought in using 772 mergemaster(8). Third-party files in /usr/local/etc/pam.d may 773 need manual editing as follows. Locate this line (or similar): 774 775 auth required pam_nologin.so no_warn 776 777 and change it according to this example: 778 779 account required pam_nologin.so no_warn 780 781 That is, the first word needs to be changed from "auth" to 782 "account". The new line can be moved to the account section 783 within the file for clarity. Not updating pam.conf(5) files 784 will result in nologin(5) ignored by the respective services. 785 78620070529: 787 The ether_ioctl() function has been synchronized with ioctl(2) 788 and ifnet.if_ioctl. Due to that, the size of one of its arguments 789 has changed on 64-bit architectures. All kernel modules using 790 ether_ioctl() need to be rebuilt on such architectures. 791 79220070516: 793 Improved INCLUDE_CONFIG_FILE support has been introduced to the 794 config(8) utility. In order to take advantage of this new 795 functionality, you are expected to recompile and install 796 src/usr.sbin/config. If you don't rebuild config(8), and your 797 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel 798 build will be broken because of a missing "kernconfstring" 799 symbol. 800 80120070513: 802 Symbol versioning is enabled by default. To disable it, use 803 option WITHOUT_SYMVER. It is not advisable to attempt to 804 disable symbol versioning once it is enabled; your installworld 805 will break because a symbol version-less libc will get installed 806 before the install tools. As a result, the old install tools, 807 which previously had symbol dependencies to FBSD_1.0, will fail 808 because the freshly installed libc will not have them. 809 810 The default threading library (providing "libpthread") has been 811 changed to libthr. If you wish to have libkse as your default, 812 use option DEFAULT_THREAD_LIB=libkse for the buildworld. 813 81420070423: 815 The ABI breakage in sendmail(8)'s libmilter has been repaired 816 so it is no longer necessary to recompile mail filters (aka, 817 milters). If you recompiled mail filters after the 20070408 818 note, it is not necessary to recompile them again. 819 82020070417: 821 The new trunk(4) driver has been renamed to lagg(4) as it better 822 reflects its purpose. ifconfig will need to be recompiled. 823 82420070408: 825 sendmail(8) has been updated to version 8.14.1. Mail filters 826 (aka, milters) compiled against the libmilter included in the 827 base operating system should be recompiled. 828 82920070302: 830 Firmwares for ipw(4) and iwi(4) are now included in the base tree. 831 In order to use them one must agree to the respective LICENSE in 832 share/doc/legal and define legal.intel_<name>.license_ack=1 via 833 loader.conf(5) or kenv(1). Make sure to deinstall the now 834 deprecated modules from the respective firmware ports. 835 83620070228: 837 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3) 838 were removed from FreeBSD's libc. These originally came from INRIA 839 IPv6. Nothing in FreeBSD ever used them. They may be regarded as 840 deprecated in previous releases. 841 The AF_LINK support for getnameinfo(3) was merged from NetBSD to 842 replace it as a more portable (and re-entrant) API. 843 84420070224: 845 To support interrupt filtering a modification to the newbus API 846 has occurred, ABI was broken and __FreeBSD_version was bumped 847 to 700031. Please make sure that your kernel and modules are in 848 sync. For more info: 849 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941 850 85120070224: 852 The IPv6 multicast forwarding code may now be loaded into GENERIC 853 kernels by loading the ip_mroute.ko module. This is built into the 854 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are 855 set; see src.conf(5) for more information. 856 85720070214: 858 The output of netstat -r has changed. Without -n, we now only 859 print a "network name" without the prefix length if the network 860 address and mask exactly match a Class A/B/C network, and an entry 861 exists in the nsswitch "networks" map. 862 With -n, we print the full unabbreviated CIDR network prefix in 863 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default". 864 This change is in preparation for changes such as equal-cost 865 multipath, and to more generally assist operational deployment 866 of FreeBSD as a modern IPv4 router. 867 86820070210: 869 PIM has been turned on by default in the IPv4 multicast 870 routing code. The kernel option 'PIM' has now been removed. 871 PIM is now built by default if option 'MROUTING' is specified. 872 It may now be loaded into GENERIC kernels by loading the 873 ip_mroute.ko module. 874 87520070207: 876 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing 877 has been removed. Its functionality may be achieved by explicitly 878 configuring gif(4) interfaces and using the 'phyint' keyword in 879 mrouted.conf. 880 XORP does not support source-routed IPv4 multicast tunnels nor the 881 integrated IPIP tunneling, therefore it is not affected by this 882 change. The __FreeBSD_version macro has been bumped to 700030. 883 88420061221: 885 Support for PCI Message Signalled Interrupts has been 886 re-enabled in the bge driver, only for those chips which are 887 believed to support it properly. If there are any problems, 888 MSI can be disabled completely by setting the 889 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0 890 in the loader. 891 89220061214: 893 Support for PCI Message Signalled Interrupts has been 894 disabled again in the bge driver. Many revisions of the 895 hardware fail to support it properly. Support can be 896 re-enabled by removing the #define of BGE_DISABLE_MSI in 897 "src/sys/dev/bge/if_bge.c". 898 89920061214: 900 Support for PCI Message Signalled Interrupts has been added 901 to the bge driver. If there are any problems, MSI can be 902 disabled completely by setting the 'hw.pci.enable_msi' and 903 'hw.pci.enable_msix' tunables to 0 in the loader. 904 90520061205: 906 The removal of several facets of the experimental Threading 907 system from the kernel means that the proc and thread structures 908 have changed quite a bit. I suggest all kernel modules that might 909 reference these structures be recompiled.. Especially the 910 linux module. 911 91220061126: 913 Sound infrastructure has been updated with various fixes and 914 improvements. Most of the changes are pretty much transparent, 915 with exceptions of followings: 916 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been 917 moved to their own dev sysctl nodes, for example: 918 hw.snd.pcm0.vchans -> dev.pcm.0.vchans 919 2) /dev/dspr%d.%d has been deprecated. Each channel now has its 920 own chardev in the form of "dsp%d.<function>%d", where <function> 921 is p = playback, r = record and v = virtual, respectively. Users 922 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d". 923 This does not affect those who are using "/dev/dsp". 924 92520061122: 926 geom(4)'s gmirror(8) class metadata structure has been 927 rev'd from v3 to v4. If you update across this point and 928 your metadata is converted for you, you will not be easily 929 able to downgrade since the /boot/kernel.old/geom_mirror.ko 930 kernel module will be unable to read the v4 metadata. You 931 can resolve this by doing from the loader(8) prompt: 932 933 set vfs.root.mountfrom="ufs:/dev/XXX" 934 935 where XXX is the root slice of one of the disks that composed 936 the mirror (i.e.: /dev/ad0s1a). You can then rebuild 937 the array the same way you built it originally. 938 93920061122: 940 The following binaries have been disconnected from the build: 941 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs, 942 and mount_std. The functionality of these programs has been 943 moved into the mount program. For example, to mount a devfs 944 filesystem, instead of using mount_devfs, use: "mount -t devfs". 945 This does not affect entries in /etc/fstab, since entries in 946 /etc/fstab are always processed with "mount -t fstype". 947 94820061113: 949 Support for PCI Message Signalled Interrupts on i386 and amd64 950 has been added to the kernel and various drivers will soon be 951 updated to use MSI when it is available. If there are any problems, 952 MSI can be disabled completely by setting the 'hw.pci.enable_msi' 953 and 'hw.pci.enable_msix' tunables to 0 in the loader. 954 95520061110: 956 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING. 957 The lockmgr object layout has been changed as a result of having 958 a lock_object embedded in it. As a consequence all file system 959 kernel modules must be re-compiled. The mutex profiling man page 960 has not yet been updated to reflect this change. 961 96220061026: 963 KSE in the kernel has now been made optional and turned on by 964 default. Use 'nooption KSE' in your kernel config to turn it 965 off. All kernel modules *must* be recompiled after this change. 966 There-after, modules from a KSE kernel should be compatible with 967 modules from a NOKSE kernel due to the temporary padding fields 968 added to 'struct proc'. 969 97020060929: 971 mrouted and its utilities have been removed from the base system. 972 97320060927: 974 Some ioctl(2) command codes have changed. Full backward ABI 975 compatibility is provided if the "options COMPAT_FREEBSD6" is 976 present in the kernel configuration file. Make sure to add 977 this option to your kernel config file, or recompile X.Org 978 and the rest of ports; otherwise they may refuse to work. 979 98020060924: 981 tcpslice has been removed from the base system. 982 98320060913: 984 The sizes of struct tcpcb (and struct xtcpcb) have changed due to 985 the rewrite of TCP syncookies. Tools like netstat, sockstat, and 986 systat needs to be rebuilt. 987 98820060903: 989 libpcap updated to v0.9.4 and tcpdump to v3.9.4 990 99120060816: 992 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour 993 for IPFIREWALL_FORWARD is now as it was before when it was first 994 committed and for years after. The behaviour is now ON. 995 99620060725: 997 enigma(1)/crypt(1) utility has been changed on 64 bit architectures. 998 Now it can decrypt files created from different architectures. 999 Unfortunately, it is no longer able to decrypt a cipher text 1000 generated with an older version on 64 bit architectures. 1001 If you have such a file, you need old utility to decrypt it. 1002 100320060709: 1004 The interface version of the i4b kernel part has changed. So 1005 after updating the kernel sources and compiling a new kernel, 1006 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also 1007 be rebuilt, and vice versa. 1008 100920060627: 1010 The XBOX kernel now defaults to the nfe(4) driver instead of 1011 the nve(4) driver. Please update your configuration 1012 accordingly. 1013 101420060514: 1015 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx 1016 PCnet family of NICs has been removed. The new le(4) driver serves 1017 as an equivalent but cross-platform replacement with the pcn(4) 1018 driver still providing performance-optimized support for the subset 1019 of AMD Am79C971 PCnet-FAST and greater chips as before. 1020 102120060511: 1022 The machdep.* sysctls and the adjkerntz utility have been 1023 modified a bit. The new adjkerntz utility uses the new 1024 sysctl names and sysctlbyname() calls, so it may be impossible 1025 to run an old /sbin/adjkerntz utility in single-user mode 1026 with a new kernel. Replace the `adjkerntz -i' step before 1027 `make installworld' with: 1028 1029 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i 1030 1031 and proceed as usual with the rest of the installworld-stage 1032 steps. Otherwise, you risk installing binaries with their 1033 timestamp set several hours in the future, especially if 1034 you are running with local time set to GMT+X hours. 1035 103620060412: 1037 The ip6fw utility has been removed. The behavior provided by 1038 ip6fw has been in ipfw2 for a good while and the rc.d scripts 1039 have been updated to deal with it. There are some rules that 1040 might not migrate cleanly. Use rc.firewall6 as a template to 1041 rewrite rules. 1042 104320060428: 1044 The puc(4) driver has been overhauled. The ebus(4) and sbus(4) 1045 attachments have been removed. Make sure to configure scc(4) 1046 on sparc64. Note also that by default puc(4) will use uart(4) 1047 and not sio(4) for serial ports because interrupt handling has 1048 been optimized for multi-port serial cards and only uart(4) 1049 implements the interface to support it. 1050 105120060330: 1052 The scc(4) driver replaces puc(4) for Serial Communications 1053 Controllers (SCCs) like the Siemens SAB82532 and the Zilog 1054 Z8530. On sparc64, it is advised to add scc(4) to the kernel 1055 configuration to make sure that the serial ports remain 1056 functional. 1057 105820060317: 1059 Most world/kernel related NO_* build options changed names. 1060 New knobs have common prefixes WITHOUT_*/WITH_* (modelled 1061 after FreeBSD ports) and should be set in /etc/src.conf 1062 (the src.conf(5) manpage is provided). Full backwards 1063 compatibility is maintained for the time being though it's 1064 highly recommended to start moving old options out of the 1065 system-wide /etc/make.conf file into the new /etc/src.conf 1066 while also properly renaming them. More conversions will 1067 likely follow. Posting to current@: 1068 1069 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html 1070 107120060305: 1072 The NETSMBCRYPTO kernel option has been retired because its 1073 functionality is always included in NETSMB and smbfs.ko now. 1074 107520060303: 1076 The TDFX_LINUX kernel option was retired and replaced by the 1077 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko 1078 kernel module. Loading it alone should suffice to get 3dfx support 1079 for Linux apps because it will pull in 3dfx.ko and linux.ko through 1080 its dependencies. 1081 108220060204: 1083 The 'audit' group was added to support the new auditing functionality 1084 in the base system. Be sure to follow the directions for updating, 1085 including the requirement to run mergemaster -p. 1086 108720060201: 1088 The kernel ABI to file system modules was changed on i386. 1089 Please make sure that your kernel and modules are in sync. 1090 109120060118: 1092 This actually occured some time ago, but installing the kernel 1093 now also installs a bunch of symbol files for the kernel modules. 1094 This increases the size of /boot/kernel to about 67Mbytes. You 1095 will need twice this if you will eventually back this up to kernel.old 1096 on your next install. 1097 If you have a shortage of room in your root partition, you should add 1098 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" 1099 to your /etc/make.conf. 1100 110120060113: 1102 libc's malloc implementation has been replaced. This change has the 1103 potential to uncover application bugs that previously went unnoticed. 1104 See the malloc(3) manual page for more details. 1105 110620060112: 1107 The generic netgraph(4) cookie has been changed. If you upgrade 1108 kernel passing this point, you also need to upgrade userland 1109 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4. 1110 111120060106: 1112 si(4)'s device files now contain the unit number. 1113 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f]. 1114 111520060106: 1116 The kernel ABI was mostly destroyed due to a change in the size 1117 of struct lock_object which is nested in other structures such 1118 as mutexes which are nested in all sorts of other structures. 1119 Make sure your kernel and modules are in sync. 1120 112120051231: 1122 The page coloring algorithm in the VM subsystem was converted 1123 from tuning with kernel options to autotuning. Please remove 1124 any PQ_* option except PQ_NOOPT from your kernel config. 1125 112620051211: 1127 The net80211-related tools in the tools/tools/ath directory 1128 have been moved to tools/tools/net80211 and renamed with a 1129 "wlan" prefix. Scripts that use them should be adjusted 1130 accordingly. 1131 113220051202: 1133 Scripts in the local_startup directories (as defined in 1134 /etc/defaults/rc.conf) that have the new rc.d semantics will 1135 now be run as part of the base system rcorder. If there are 1136 errors or problems with one of these local scripts, it could 1137 cause boot problems. If you encounter such problems, boot in 1138 single user mode, remove that script from the */rc.d directory. 1139 Please report the problem to the port's maintainer, and the 1140 freebsd-ports@freebsd.org mailing list. 1141 114220051129: 1143 The nodev mount option was deprecated in RELENG_6 (where it 1144 was a no-op), and is now unsupported. If you have nodev or dev listed 1145 in /etc/fstab, remove it, otherwise it will result in a mount error. 1146 114720051129: 1148 ABI between ipfw(4) and ipfw(8) has been changed. You need 1149 to rebuild ipfw(8) when rebuilding kernel. 1150 115120051108: 1152 rp(4)'s device files now contain the unit number. 1153 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f]. 1154 115520051029: 1156 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 1157 Its /etc/rc.conf.d configuration file has been `ppp' from 1158 the beginning, and hence there is no need to touch it. 1159 116020051014: 1161 Now most modules get their build-time options from the kernel 1162 configuration file. A few modules still have fixed options 1163 due to their non-conformant implementation, but they will be 1164 corrected eventually. You may need to review the options of 1165 the modules in use, explicitly specify the non-default options 1166 in the kernel configuration file, and rebuild the kernel and 1167 modules afterwards. 1168 116920051001: 1170 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 1171 to turn polling(4) on your interfaces. 1172 117320050927: 1174 The old bridge(4) implementation was retired. The new 1175 if_bridge(4) serves as a full functional replacement. 1176 117720050722: 1178 The ai_addrlen of a struct addrinfo was changed to a socklen_t 1179 to conform to POSIX-2001. This change broke an ABI 1180 compatibility on 64 bit architecture. You have to recompile 1181 userland programs that use getaddrinfo(3) on 64 bit 1182 architecture. 1183 118420050711: 1185 RELENG_6 branched here. 1186 118720050629: 1188 The pccard_ifconfig rc.conf variable has been removed and a new 1189 variable, ifconfig_DEFAULT has been introduced. Unlike 1190 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 1191 do not have ifconfig_ifn entries rather than just those in 1192 removable_interfaces. 1193 119420050616: 1195 Some previous versions of PAM have permitted the use of 1196 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 1197 to third party PAM modules in /usr/local/lib. A change has been 1198 made to require the use of absolute paths in order to avoid 1199 ambiguity and dependence on library path configuration, which may 1200 affect existing configurations. 1201 120220050610: 1203 Major changes to network interface API. All drivers must be 1204 recompiled. Drivers not in the base system will need to be 1205 updated to the new APIs. 1206 120720050609: 1208 Changes were made to kinfo_proc in sys/user.h. Please recompile 1209 userland, or commands like `fstat', `pkill', `ps', `top' and `w' 1210 will not behave correctly. 1211 1212 The API and ABI for hwpmc(4) have changed with the addition 1213 of sampling support. Please recompile lib/libpmc(3) and 1214 usr.sbin/{pmcstat,pmccontrol}. 1215 121620050606: 1217 The OpenBSD dhclient was imported in place of the ISC dhclient 1218 and the network interface configuration scripts were updated 1219 accordingly. If you use DHCP to configure your interfaces, you 1220 must now run devd. Also, DNS updating was lost so you will need 1221 to find a workaround if you use this feature. 1222 1223 The '_dhcp' user was added to support the OpenBSD dhclient. Be 1224 sure to run mergemaster -p (like you are supposed to do every time 1225 anyway). 1226 122720050605: 1228 if_bridge was added to the tree. This has changed struct ifnet. 1229 Please recompile userland and all network related modules. 1230 123120050603: 1232 The n_net of a struct netent was changed to an uint32_t, and 1233 1st argument of getnetbyaddr() was changed to an uint32_t, to 1234 conform to POSIX-2001. These changes broke an ABI 1235 compatibility on 64 bit architecture. With these changes, 1236 shlib major of libpcap was bumped. You have to recompile 1237 userland programs that use getnetbyaddr(3), getnetbyname(3), 1238 getnetent(3) and/or libpcap on 64 bit architecture. 1239 124020050528: 1241 Kernel parsing of extra options on '#!' first lines of shell 1242 scripts has changed. Lines with multiple options likely will 1243 fail after this date. For full details, please see 1244 http://people.freebsd.org/~gad/Updating-20050528.txt 1245 124620050503: 1247 The packet filter (pf) code has been updated to OpenBSD 3.7 1248 Please note the changed anchor syntax and the fact that 1249 authpf(8) now needs a mounted fdescfs(5) to function. 1250 125120050415: 1252 The NO_MIXED_MODE kernel option has been removed from the i386 1253 amd64 platforms as its use has been superceded by the new local 1254 APIC timer code. Any kernel config files containing this option 1255 should be updated. 1256 125720050227: 1258 The on-disk format of LC_CTYPE files was changed to be machine 1259 independent. Please make sure NOT to use NO_CLEAN buildworld 1260 when crossing this point. Crossing this point also requires 1261 recompile or reinstall of all locale depended packages. 1262 126320050225: 1264 The ifi_epoch member of struct if_data has been changed to 1265 contain the uptime at which the interface was created or the 1266 statistics zeroed rather then the wall clock time because 1267 wallclock time may go backwards. This should have no impact 1268 unless an snmp implementation is using this value (I know of 1269 none at this point.) 1270 127120050224: 1272 The acpi_perf and acpi_throttle drivers are now part of the 1273 acpi(4) main module. They are no longer built separately. 1274 127520050223: 1276 The layout of struct image_params has changed. You have to 1277 recompile all compatibility modules (linux, svr4, etc) for use 1278 with the new kernel. 1279 128020050223: 1281 The p4tcc driver has been merged into cpufreq(4). This makes 1282 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 1283 compile in "device cpufreq" to restore this functionality. 1284 128520050220: 1286 The responsibility of recomputing the file system summary of 1287 a SoftUpdates-enabled dirty volume has been transferred to the 1288 background fsck. A rebuild of fsck(8) utility is recommended 1289 if you have updated the kernel. 1290 1291 To get the old behavior (recompute file system summary at mount 1292 time), you can set vfs.ffs.compute_summary_at_mount=1 before 1293 mounting the new volume. 1294 129520050206: 1296 The cpufreq import is complete. As part of this, the sysctls for 1297 acpi(4) throttling have been removed. The power_profile script 1298 has been updated, so you can use performance/economy_cpu_freq in 1299 rc.conf(5) to set AC on/offline cpu frequencies. 1300 130120050206: 1302 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 1303 requires recompiling libnetgraph and userland netgraph utilities. 1304 130520050114: 1306 Support for abbreviated forms of a number of ipfw options is 1307 now deprecated. Warnings are printed to stderr indicating the 1308 correct full form when a match occurs. Some abbreviations may 1309 be supported at a later date based on user feedback. To be 1310 considered for support, abbreviations must be in use prior to 1311 this commit and unlikely to be confused with current key words. 1312 131320041221: 1314 By a popular demand, a lot of NOFOO options were renamed 1315 to NO_FOO (see bsd.compat.mk for a full list). The old 1316 spellings are still supported, but will cause annoying 1317 warnings on stderr. Make sure you upgrade properly (see 1318 the COMMON ITEMS: section later in this file). 1319 132020041219: 1321 Auto-loading of ancillary wlan modules such as wlan_wep has 1322 been temporarily disabled; you need to statically configure 1323 the modules you need into your kernel or explicitly load them 1324 prior to use. Specifically, if you intend to use WEP encryption 1325 with an 802.11 device load/configure wlan_wep; if you want to 1326 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 1327 and wlan_xauth as required. 1328 132920041213: 1330 The behaviour of ppp(8) has changed slightly. If lqr is enabled 1331 (``enable lqr''), older versions would revert to LCP ECHO mode on 1332 negotiation failure. Now, ``enable echo'' is required for this 1333 behaviour. The ppp version number has been bumped to 3.4.2 to 1334 reflect the change. 1335 133620041201: 1337 The wlan support has been updated to split the crypto support 1338 into separate modules. For static WEP you must configure the 1339 wlan_wep module in your system or build and install the module 1340 in place where it can be loaded (the kernel will auto-load 1341 the module when a wep key is configured). 1342 134320041201: 1344 The ath driver has been updated to split the tx rate control 1345 algorithm into a separate module. You need to include either 1346 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 1347 134820041116: 1349 Support for systems with an 80386 CPU has been removed. Please 1350 use FreeBSD 5.x or earlier on systems with an 80386. 1351 135220041110: 1353 We have had a hack which would mount the root filesystem 1354 R/W if the device were named 'md*'. As part of the vnode 1355 work I'm doing I have had to remove this hack. People 1356 building systems which use preloaded MD root filesystems 1357 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 1358 their /etc/rc scripts. 1359 136020041104: 1361 FreeBSD 5.3 shipped here. 1362 136320041102: 1364 The size of struct tcpcb has changed again due to the removal 1365 of RFC1644 T/TCP. You have to recompile userland programs that 1366 read kmem for tcp sockets directly (netstat, sockstat, etc.) 1367 136820041022: 1369 The size of struct tcpcb has changed. You have to recompile 1370 userland programs that read kmem for tcp sockets directly 1371 (netstat, sockstat, etc.) 1372 137320041016: 1374 RELENG_5 branched here. For older entries, please see updating 1375 in the RELENG_5 branch. 1376 1377COMMON ITEMS: 1378 1379 General Notes 1380 ------------- 1381 Avoid using make -j when upgrading. From time to time in the 1382 past there have been problems using -j with buildworld and/or 1383 installworld. This is especially true when upgrading between 1384 "distant" versions (eg one that cross a major release boundary 1385 or several minor releases, or when several months have passed 1386 on the -current branch). 1387 1388 Sometimes, obscure build problems are the result of environment 1389 poisoning. This can happen because the make utility reads its 1390 environment when searching for values for global variables. 1391 To run your build attempts in an "environmental clean room", 1392 prefix all make commands with 'env -i '. See the env(1) manual 1393 page for more details. 1394 1395 When upgrading from one major version to another it is generally 1396 best to upgrade to the latest code in the currently installed branch 1397 first, then do an upgrade to the new branch. This is the best-tested 1398 upgrade path, and has the highest probability of being successful. 1399 Please try this approach before reporting problems with a major 1400 version upgrade. 1401 1402 To build a kernel 1403 ----------------- 1404 If you are updating from a prior version of FreeBSD (even one just 1405 a few days old), you should follow this procedure. It is the most 1406 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1407 1408 make kernel-toolchain 1409 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1410 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1411 1412 To test a kernel once 1413 --------------------- 1414 If you just want to boot a kernel once (because you are not sure 1415 if it works, or if you want to boot a known bad kernel to provide 1416 debugging information) run 1417 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1418 nextboot -k testkernel 1419 1420 To just build a kernel when you know that it won't mess you up 1421 -------------------------------------------------------------- 1422 This assumes you are already running a 5.X system. Replace 1423 ${arch} with the architecture of your machine (e.g. "i386", 1424 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 1425 1426 cd src/sys/${arch}/conf 1427 config KERNEL_NAME_HERE 1428 cd ../compile/KERNEL_NAME_HERE 1429 make depend 1430 make 1431 make install 1432 1433 If this fails, go to the "To build a kernel" section. 1434 1435 To rebuild everything and install it on the current system. 1436 ----------------------------------------------------------- 1437 # Note: sometimes if you are running current you gotta do more than 1438 # is listed here if you are upgrading from a really old current. 1439 1440 <make sure you have good level 0 dumps> 1441 make buildworld 1442 make kernel KERNCONF=YOUR_KERNEL_HERE 1443 [1] 1444 <reboot in single user> [3] 1445 mergemaster -p [5] 1446 make installworld 1447 make delete-old 1448 mergemaster [4] 1449 <reboot> 1450 1451 1452 To cross-install current onto a separate partition 1453 -------------------------------------------------- 1454 # In this approach we use a separate partition to hold 1455 # current's root, 'usr', and 'var' directories. A partition 1456 # holding "/", "/usr" and "/var" should be about 2GB in 1457 # size. 1458 1459 <make sure you have good level 0 dumps> 1460 <boot into -stable> 1461 make buildworld 1462 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1463 <maybe newfs current's root partition> 1464 <mount current's root partition on directory ${CURRENT_ROOT}> 1465 make installworld DESTDIR=${CURRENT_ROOT} 1466 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1467 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1468 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1469 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1470 <reboot into current> 1471 <do a "native" rebuild/install as described in the previous section> 1472 <maybe install compatibility libraries from ports/misc/compat*> 1473 <reboot> 1474 1475 1476 To upgrade in-place from 5.x-stable to current 1477 ---------------------------------------------- 1478 <make sure you have good level 0 dumps> 1479 make buildworld [9] 1480 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1481 [1] 1482 <reboot in single user> [3] 1483 mergemaster -p [5] 1484 make installworld 1485 make delete-old 1486 mergemaster -i [4] 1487 <reboot> 1488 1489 Make sure that you've read the UPDATING file to understand the 1490 tweaks to various things you need. At this point in the life 1491 cycle of current, things change often and you are on your own 1492 to cope. The defaults can also change, so please read ALL of 1493 the UPDATING entries. 1494 1495 Also, if you are tracking -current, you must be subscribed to 1496 freebsd-current@freebsd.org. Make sure that before you update 1497 your sources that you have read and understood all the recent 1498 messages there. If in doubt, please track -stable which has 1499 much fewer pitfalls. 1500 1501 [1] If you have third party modules, such as vmware, you 1502 should disable them at this point so they don't crash your 1503 system on reboot. 1504 1505 [3] From the bootblocks, boot -s, and then do 1506 fsck -p 1507 mount -u / 1508 mount -a 1509 cd src 1510 adjkerntz -i # if CMOS is wall time 1511 Also, when doing a major release upgrade, it is required that 1512 you boot into single user mode to do the installworld. 1513 1514 [4] Note: This step is non-optional. Failure to do this step 1515 can result in a significant reduction in the functionality of the 1516 system. Attempting to do it by hand is not recommended and those 1517 that pursue this avenue should read this file carefully, as well 1518 as the archives of freebsd-current and freebsd-hackers mailing lists 1519 for potential gotchas. 1520 1521 [5] Usually this step is a noop. However, from time to time 1522 you may need to do this if you get unknown user in the following 1523 step. It never hurts to do it all the time. You may need to 1524 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1525 install) after the buildworld before this step if you last updated 1526 from current before 20020224 or from -stable before 20020408. 1527 1528 [8] In order to have a kernel that can run the 4.x binaries 1529 needed to do an installworld, you must include the COMPAT_FREEBSD4 1530 option in your kernel. Failure to do so may leave you with a system 1531 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 1532 is required to run the 5.x binaries on more recent kernels. 1533 1534 Make sure that you merge any new devices from GENERIC since the 1535 last time you updated your kernel config file. 1536 1537 [9] When checking out sources, you must include the -P flag to have 1538 cvs prune empty directories. 1539 1540 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1541 "?=" instead of the "=" assignment operator, so that buildworld can 1542 override the CPUTYPE if it needs to. 1543 1544 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1545 not on the command line, or in /etc/make.conf. buildworld will 1546 warn if it is improperly defined. 1547FORMAT: 1548 1549This file contains a list, in reverse chronological order, of major 1550breakages in tracking -current. Not all things will be listed here, 1551and it only starts on October 16, 2004. Updating files can found in 1552previous releases if your system is older than this. 1553 1554Copyright information: 1555 1556Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 1557 1558Redistribution, publication, translation and use, with or without 1559modification, in full or in part, in any form or format of this 1560document are permitted without further permission from the author. 1561 1562THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1563IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1564WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1565DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1566INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1567(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1568SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1569HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1570STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1571IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1572POSSIBILITY OF SUCH DAMAGE. 1573 1574If you find this document useful, and you want to, you may buy the 1575author a beer. 1576 1577Contact Warner Losh if you have any questions about your use of 1578this document. 1579 1580$FreeBSD: head/UPDATING 193285 2009-06-01 22:47:59Z dougb $ 1581