1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh
4 <imp@village.org>. See end of file for further details. For commonly
5 done items, please see the COMMON ITEMS: section later in the file.
7 Items affecting the ports and packages system can be found in
8 /usr/ports/UPDATING. Please read that file before running
11 NOTE 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.)
26 The layout of the structure returned by IEEE80211_IOC_STA_INFO
27 has changed. User applications that use this ioctl need to be
31 The layout of struct thread has changed. Kernel and modules
35 The layout of structs ifnet, domain, protosw and vnet_net has
36 changed. Kernel modules need to be rebuilt.
37 Bump __FreeBSD_version to 800097.
40 window(1) has been removed from the base system. It can now be
41 installed from ports. The port is called misc/window.
44 The way we are storing and accessing `routing table' entries
45 has changed. Programs reading the FIB, like netstat, need to
49 A new netisr implementation has been added for FreeBSD 8. Network
50 file system modules, such as igmp, ipdivert, and others, should be
52 Bump __FreeBSD_version to 800096.
55 For those who use ipfw and especially pf, those two firewalls
56 are now started BEFORE the network is initialized (i.e., before
57 rc.d/netif). Please review your rules to make sure that your
58 interfaces will be properly described.
61 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
65 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
66 Bump __FreeBSD_version to 800094.
69 Add mnt_xflag field to 'struct mount'. File system modules
71 Bump __FreeBSD_version to 800093.
74 The compiling option ADAPTIVE_SX has been retired while it has been
75 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
76 The KPI for sx_init_flags() changes as accepting flags:
77 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
78 has been introduced in order to handle the reversed logic.
79 Bump __FreeBSD_version to 800092.
82 Add support for hierarchical jails. Remove global securelevel.
83 Bump __FreeBSD_version to 800091.
86 The layout of struct vnet_net has changed, therefore modules
88 Bump __FreeBSD_version to 800090.
91 The newly imported zic(8) produces a new format in the
92 output. Please run tzsetup(8) to install the newly created
93 data to /etc/localtime.
96 The sysctl tree for the usb stack has renamed from hw.usb2.* to
97 hw.usb.* and is now consistent again with previous releases.
100 802.11 monitor mode support was revised and driver api's
101 were changed. Drivers dependent on net80211 now support
102 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
103 user-visible data structures were changed but applications
104 that use DLT_IEEE802_11 may require changes.
105 Bump __FreeBSD_version to 800088.
108 The layout of the following structs has changed: sysctl_oid,
109 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
110 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
111 panics may be experienced. World rebuild is required for
112 correctly checking networking state from userland.
113 Bump __FreeBSD_version to 800085.
116 MLDv2 and Source-Specific Multicast (SSM) have been merged
117 to the IPv6 stack. VIMAGE hooks are in but not yet used.
118 The implementation of SSM within FreeBSD's IPv6 stack closely
119 follows the IPv4 implementation.
121 For kernel developers:
123 * The most important changes are that the ip6_output() and
124 ip6_input() paths no longer take the IN6_MULTI_LOCK,
125 and this lock has been downgraded to a non-recursive mutex.
127 * As with the changes to the IPv4 stack to support SSM, filtering
128 of inbound multicast traffic must now be performed by transport
129 protocols within the IPv6 stack. This does not apply to TCP and
130 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
132 * The KPIs used by IPv6 multicast are similar to those used by
133 the IPv4 stack, with the following differences:
134 * im6o_mc_filter() is analogous to imo_multicast_filter().
135 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
136 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
137 * IN6_LOOKUP_MULTI() has been deprecated and removed.
138 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
139 for MLDv1 have an additional 'timer' argument which is used to
140 jitter the initial membership report for the solicited-node
141 multicast membership on-link.
142 * This is not strictly needed for MLDv2, which already jitters
143 its report transmissions. However, the 'timer' argument is
144 preserved in case MLDv1 is active on the interface.
146 * The KAME linked-list based IPv6 membership implementation has
147 been refactored to use a vector similar to that used by the IPv4
149 Code which maintains a list of its own multicast memberships
150 internally, e.g. carp, has been updated to reflect the new
153 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
154 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
155 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
156 implementation constraint which needs to be addressed in HEAD.
158 For application developers:
160 * The changes are broadly similar to those made for the IPv4
163 * The use of IPv4 and IPv6 multicast socket options on the same
164 socket, using mapped addresses, HAS NOT been tested or supported.
166 * There are a number of issues with the implementation of various
167 IPv6 multicast APIs which need to be resolved in the API surface
168 before the implementation is fully compatible with KAME userland
169 use, and these are mostly to do with interface index treatment.
171 * The literature available discusses the use of either the delta / ASM
172 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
173 using setsourcefilter(3)/getsourcefilter(3). For more information
174 please refer to RFC 3768, 'Socket Interface Extensions for
175 Multicast Source Filters'.
177 * Applications which use the published RFC 3678 APIs should be fine.
179 For systems administrators:
181 * The mtest(8) utility has been refactored to support IPv6, in
182 addition to IPv4. Interface addresses are no longer accepted
183 as arguments, their names must be used instead. The utility
184 will map the interface name to its first IPv4 address as
185 returned by getifaddrs(3).
187 * The ifmcstat(8) utility has also been updated to print the MLDv2
188 endpoint state and source filter lists via sysctl(3).
190 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
191 loopback of IPv6 multicast datagrams by default; it defaults to 1
192 to preserve the existing behaviour. Disabling multicast loopback is
193 recommended for optimal system performance.
195 * The IPv6 MROUTING code has been changed to examine this sysctl
196 instead of attempting to perform a group lookup before looping
197 back forwarded datagrams.
199 Bump __FreeBSD_version to 800084.
202 Implement low-level Bluetooth HCI API.
203 Bump __FreeBSD_version to 800083.
206 The layout of struct malloc_type, used by modules to register new
207 memory allocation types, has changed. Most modules will need to
208 be rebuilt or panics may be experienced.
209 Bump __FreeBSD_version to 800081.
212 Anticipate overflowing inp_flags - add inp_flags2.
213 This changes most offsets in inpcb, so checking v4 connection
214 state will require a world rebuild.
215 Bump __FreeBSD_version to 800080.
218 Add an llentry to struct route and struct route_in6. Modules
219 embedding a struct route will need to be recompiled.
220 Bump __FreeBSD_version to 800079.
223 The size of rt_metrics_lite and by extension rtentry has changed.
224 Networking administration apps will need to be recompiled.
225 The route command now supports show as an alias for get, weighting
226 of routes, sticky and nostick flags to alter the behavior of stateful
228 Bump __FreeBSD_version to 800078.
231 Do not use Giant for kbdmux(4) locking. This is wrong and
232 apparently causing more problems than it solves. This will
233 re-open the issue where interrupt handlers may race with
234 kbdmux(4) in polling mode. Typical symptoms include (but
235 not limited to) duplicated and/or missing characters when
236 low level console functions (such as gets) are used while
237 interrupts are enabled (for example geli password prompt,
238 mountroot prompt etc.). Disabling kbdmux(4) may help.
241 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
242 kernel modules referencing any of the above need to be recompiled.
243 Bump __FreeBSD_version to 800075.
246 GEOM_PART has become the default partition slicer for storage devices,
247 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
248 introduces some changes:
250 MSDOS/EBR: the devices created from MSDOS extended partition entries
251 (EBR) can be named differently than with GEOM_MBR and are now symlinks
252 to devices with offset-based names. fstabs may need to be modified.
254 BSD: the "geometry does not match label" warning is harmless in most
255 cases but it points to problems in file system misalignment with
256 disk geometry. The "c" partition is now implicit, covers the whole
257 top-level drive and cannot be (mis)used by users.
259 General: Kernel dumps are now not allowed to be written to devices
260 whose partition types indicate they are meant to be used for file
261 systems (or, in case of MSDOS partitions, as something else than
264 Most of these changes date approximately from 200812.
267 The uscanner(4) driver has been removed from the kernel. This follows
268 Linux removing theirs in 2.6 and making libusb the default interface
272 The multicast forwarding code has been cleaned up. netstat(1)
273 only relies on KVM now for printing bandwidth upcall meters.
274 The IPv4 and IPv6 modules are split into ip_mroute_mod and
275 ip6_mroute_mod respectively. The config(5) options for statically
276 compiling this code remain the same, i.e. 'options MROUTING'.
279 Support for the IFF_NEEDSGIANT network interface flag has been
280 removed, which means that non-MPSAFE network device drivers are no
281 longer supported. In particular, if_ar, if_sr, and network device
282 drivers from the old (legacy) USB stack can no longer be built or
286 POSIX.1 Native Language Support (NLS) has been enabled in libc and
287 a bunch of new language catalog files have also been added.
288 This means that some common libc messages are now localized and
289 they depend on the LC_MESSAGES environmental variable.
292 The k8temp(4) driver has been renamed to amdtemp(4) since
293 support for K10 and K11 CPU families was added.
296 IGMPv3 and Source-Specific Multicast (SSM) have been merged
297 to the IPv4 stack. VIMAGE hooks are in but not yet used.
299 For kernel developers, the most important changes are that the
300 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
301 and this lock has been downgraded to a non-recursive mutex.
303 Transport protocols (UDP, Raw IP) are now responsible for filtering
304 inbound multicast traffic according to group membership and source
305 filters. The imo_multicast_filter() KPI exists for this purpose.
306 Transports which do not use multicast (SCTP, TCP) already reject
307 multicast by default. Forwarding and receive performance may improve
308 as a mutex acquisition is no longer needed in the ip_input()
309 low-level input path. in_addmulti() and in_delmulti() are shimmed
310 to new KPIs which exist to support SSM in-kernel.
312 For application developers, it is recommended that loopback of
313 multicast datagrams be disabled for best performance, as this
314 will still cause the lock to be taken for each looped-back
315 datagram transmission. The net.inet.ip.mcast.loop sysctl may
316 be tuned to 0 to disable loopback by default; it defaults to 1
317 to preserve the existing behaviour.
319 For systems administrators, to obtain best performance with
320 multicast reception and multiple groups, it is always recommended
321 that a card with a suitably precise hash filter is used. Hash
322 collisions will still result in the lock being taken within the
323 transport protocol input path to check group membership.
325 If deploying FreeBSD in an environment with IGMP snooping switches,
326 it is recommended that the net.inet.igmp.sendlocal sysctl remain
327 enabled; this forces 224.0.0.0/24 group membership to be announced
330 The size of 'struct igmpstat' has changed; netstat needs to be
331 recompiled to reflect this.
332 Bump __FreeBSD_version to 800070.
335 libusb20.so.1 is now installed as libusb.so.1 and the ports system
336 updated to use it. This requires a buildworld/installworld in order to
337 update the library and dependencies (usbconfig, etc). Its advisable to
338 rebuild all ports which uses libusb. More specific directions are given
339 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
340 libusb are no longer required and can be removed.
343 A workaround is committed to allow the creation of System V shared
344 memory segment of size > 2 GB on the 64-bit architectures.
345 Due to a limitation of the existing ABI, the shm_segsz member
346 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
347 wrong for large segments. Note that limits must be explicitly
348 raised to allow such segments to be created.
351 The layout of struct ifnet has changed, requiring a rebuild of all
352 network device driver modules.
355 The /dev handling for the new USB stack has changed, a
356 buildworld/installworld is required for libusb20.
359 The new USB2 stack has now been permanently moved in and all kernel and
360 module names reverted to their previous values (eg, usb, ehci, ohci,
361 ums, ...). The old usb stack can be compiled in by prefixing the name
362 with the letter 'o', the old usb modules have been removed.
363 Updating entry 20090216 for xorg and 20090215 for libmap may still
367 The rc.conf(5) option if_up_delay has been renamed to
368 defaultroute_delay to better reflect its purpose. If you have
369 customized this setting in /etc/rc.conf you need to update it to
373 xorg 7.4 wants to configure its input devices via hald which does not
374 yet work with USB2. If the keyboard/mouse does not work in xorg then
376 Option "AllowEmptyInput" "off"
377 to your ServerLayout section. This will cause X to use the configured
378 kbd and mouse sections from your xorg.conf.
381 The GENERIC kernels for all architectures now default to the new USB2
382 stack. No kernel config options or code have been removed so if a
383 problem arises please report it and optionally revert to the old USB
384 stack. If you are loading USB kernel modules or have a custom kernel
385 that includes GENERIC then ensure that usb names are also changed over,
386 eg uftdi -> usb2_serial_ftdi.
388 Older programs linked against the ports libusb 0.1 need to be
389 redirected to the new stack's libusb20. /etc/libmap.conf can
391 # Map old usb library to new one for usb2 stack
392 libusb-0.1.so.8 libusb20.so.1
395 The ichsmb(4) driver has been changed to require SMBus slave
396 addresses be left-justified (xxxxxxx0b) rather than right-justified.
397 All of the other SMBus controller drivers require left-justified
398 slave addresses, so this change makes all the drivers provide the
402 INET6 statistics (struct ip6stat) was updated.
403 netstat(1) needs to be recompiled.
406 NTFS has been removed from GENERIC kernel on amd64 to match
407 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
408 will load ntfs.ko module automatically when NTFS support is
409 actually needed, unless ntfs.ko is not installed or security
410 level prohibits loading kernel modules. If either is the case,
411 "options NTFS" has to be added into kernel config.
414 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
415 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
416 800061. User space tools that rely on the size of struct tcpcb in
417 tcp_var.h (e.g. sockstat) need to be recompiled.
420 ng_tty(4) module updated to match the new TTY subsystem.
421 Due to API change, user-level applications must be updated.
422 New API support added to mpd5 CVS and expected to be present
423 in next mpd5.3 release.
426 With __FreeBSD_version 800060 the makefs tool is part of
427 the base system (it was a port).
430 The afdata and ifnet locks have been changed from mutexes to
431 rwlocks, network modules will need to be re-compiled.
434 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
435 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
436 The new code reduced struct rtentry{} by 16 bytes on 32-bit
437 architecture and 40 bytes on 64-bit architecture. The userland
438 applications "arp" and "ndp" have been updated accordingly.
439 The output from "netstat -r" shows only routing entries and
440 none of the L2 information.
443 __FreeBSD_version 800057 marks the switchover from the
444 binary ath hal to source code. Users must add the line:
446 options AH_SUPPORT_AR5416
448 to their kernel config files when specifying:
452 The ath_hal module no longer exists; the code is now compiled
453 together with the driver in the ath module. It is now
454 possible to tailor chip support (i.e. reduce the set of chips
455 and thereby the code size); consult ath_hal(4) for details.
458 __FreeBSD_version 800054 adds memory barriers to
459 <machine/atomic.h>, new interfaces to ifnet to facilitate
460 multiple hardware transmit queues for cards that support
461 them, and a lock-less ring-buffer implementation to
462 enable drivers to more efficiently manage queueing of
466 A new version of ZFS (version 13) has been merged to -HEAD.
467 This version has zpool attribute "listsnapshots" off by
468 default, which means "zfs list" does not show snapshots,
469 and is the same as Solaris behavior.
472 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
475 The uhci, ohci, ehci and slhci USB Host controller drivers have
476 been put into separate modules. If you load the usb module
477 separately through loader.conf you will need to load the
478 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
479 controller add the following to loader.conf:
485 The ABI used by the PMC toolset has changed. Please keep
486 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
490 The TTY subsystem of the kernel has been replaced by a new
491 implementation, which provides better scalability and an
492 improved driver model. Most common drivers have been migrated to
493 the new TTY subsystem, while others have not. The following
494 drivers have not yet been ported to the new TTY layer:
497 cy, digi, rc, rp, sio
503 ng_h4, ng_tty, ppp, sl, snp
505 Adding these drivers to your kernel configuration file shall
506 cause compilation to fail.
509 ntpd has been upgraded to 4.2.4p5.
512 OpenSSH has been upgraded to 5.1p1.
514 For many years, FreeBSD's version of OpenSSH preferred DSA
515 over RSA for host and user authentication keys. With this
516 upgrade, we've switched to the vendor's default of RSA over
517 DSA. This may cause upgraded clients to warn about unknown
518 host keys even for previously known hosts. Users should
519 follow the usual procedure for verifying host keys before
520 accepting the RSA key.
522 This can be circumvented by setting the "HostKeyAlgorithms"
523 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
526 Please note that the sequence of keys offered for
527 authentication has been changed as well. You may want to
528 specify IdentityFile in a different order to revert this
532 The sio(4) driver has been removed from the i386 and amd64
533 kernel configuration files. This means uart(4) is now the
534 default serial port driver on those platforms as well.
536 To prevent collisions with the sio(4) driver, the uart(4) driver
537 uses different names for its device nodes. This means the
538 onboard serial port will now most likely be called "ttyu0"
539 instead of "ttyd0". You may need to reconfigure applications to
540 use the new device names.
542 When using the serial port as a boot console, be sure to update
543 /boot/device.hints and /etc/ttys before booting the new kernel.
544 If you forget to do so, you can still manually specify the hints
545 at the loader prompt:
547 set hint.uart.0.at="isa"
548 set hint.uart.0.port="0x3F8"
549 set hint.uart.0.flags="0x10"
550 set hint.uart.0.irq="4"
554 The gpt(8) utility has been removed. Use gpart(8) to partition
558 The version that Linuxulator emulates was changed from 2.4.2
559 to 2.6.16. If you experience any problems with Linux binaries
560 please try to set sysctl compat.linux.osrelease to 2.4.2 and
561 if it fixes the problem contact emulation mailing list.
564 ISDN4BSD (I4B) was removed from the src tree. You may need to
565 update a your kernel configuration and remove relevant entries.
568 I have checked in code to support multiple routing tables.
569 See the man pages setfib(1) and setfib(2).
570 This is a hopefully backwards compatible version,
571 but to make use of it you need to compile your kernel
572 with options ROUTETABLES=2 (or more up to 16).
575 The 802.11 wireless support was redone to enable multi-bss
576 operation on devices that are capable. The underlying device
577 is no longer used directly but instead wlanX devices are
578 cloned with ifconfig. This requires changes to rc.conf files.
580 ifconfig_ath0="WPA DHCP"
583 ifconfig_wlan0="WPA DHCP"
584 see rc.conf(5) for more details. In addition, mergemaster of
585 /etc/rc.d is highly recommended. Simultaneous update of userland
586 and kernel wouldn't hurt either.
588 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
589 modules were merged into the base wlan module. All references
590 to these modules (e.g. in kernel config files) must be removed.
593 psm(4) has gained write(2) support in native operation level.
594 Arbitrary commands can be written to /dev/psm%d and status can
595 be read back from it. Therefore, an application is responsible
596 for status validation and error recovery. It is a no-op in
597 other operation levels.
600 Support for KSE threading has been removed from the kernel. To
601 run legacy applications linked against KSE libmap.conf may
602 be used. The following libmap.conf may be used to ensure
603 compatibility with any prior release:
605 libpthread.so.1 libthr.so.1
606 libpthread.so.2 libthr.so.2
607 libkse.so.3 libthr.so.3
610 The layout of struct vmspace has changed. This affects libkvm
611 and any executables that link against libkvm and use the
612 kvm_getprocs() function. In particular, but not exclusively,
613 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
614 The effects are minimal, but it's advisable to upgrade world
618 The latest em driver no longer has support in it for the
619 82575 adapter, this is now moved to the igb driver. The
620 split was done to make new features that are incompatible
621 with older hardware easier to do.
624 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
625 likewise the kernel option is now GEOM_LINUX_LVM.
628 The default NFS mount mode has changed from UDP to TCP for
629 increased reliability. If you rely on (insecurely) NFS
630 mounting across a firewall you may need to update your
634 Belatedly note the addition of m_collapse for compacting
638 The fts(3) structures have been changed to use adequate
639 integer types for their members and so to be able to cope
640 with huge file trees. The old fts(3) ABI is preserved
641 through symbol versioning in libc, so third-party binaries
642 using fts(3) should still work, although they will not take
643 advantage of the extended types. At the same time, some
644 third-party software might fail to build after this change
645 due to unportable assumptions made in its source code about
646 fts(3) structure members. Such software should be fixed
647 by its vendor or, in the worst case, in the ports tree.
648 FreeBSD_version 800015 marks this change for the unlikely
649 case that a portable fix is impossible.
652 To upgrade to -current after this date, you must be running
653 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
654 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
657 The ADAPTIVE_GIANT kernel option has been retired because its
658 functionality is the default now.
661 The AT keyboard emulation of sunkbd(4) has been turned on
662 by default. In order to make the special symbols of the Sun
663 keyboards driven by sunkbd(4) work under X these now have
664 to be configured the same way as Sun USB keyboards driven
665 by ukbd(4) (which also does AT keyboard emulation), f.e.:
667 Option "XkbLayout" "us"
668 Option "XkbRules" "xorg"
669 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
672 It has been decided that it is desirable to provide ABI
673 backwards compatibility to the FreeBSD 4/5/6 versions of the
674 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
675 broken with the introduction of PCI domain support (see the
676 20070930 entry). Unfortunately, this required the ABI of
677 PCIOCGETCONF to be broken again in order to be able to
678 provide backwards compatibility to the old version of that
679 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
680 again. As for prominent ports this affects neither pciutils
681 nor xorg-server this time, the hal port needs to be rebuilt
685 The misnamed kthread_create() and friends have been renamed
686 to kproc_create() etc. Many of the callers already
688 I will return kthread_create() and friends in a while
689 with implementations that actually create threads, not procs.
690 Renaming corresponds with version 800002.
696 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
697 WITHOUT_LIBTHR are set.
700 The PCI code has been made aware of PCI domains. This means that
701 the location strings as used by pciconf(8) etc are now in the
702 following format: pci<domain>:<bus>:<device>[:<function>]. It
703 also means that consumers of <sys/pciio.h> potentially need to
704 be recompiled; this includes the hal and xorg-server ports.
707 The caching daemon (cached) was renamed to nscd. nscd.conf
708 configuration file should be used instead of cached.conf and
709 nscd_enable, nscd_pidfile and nscd_flags options should be used
710 instead of cached_enable, cached_pidfile and cached_flags in
714 The getfacl(1) utility now prints owning user and group name
715 instead of owning uid and gid in the three line comment header.
716 This is the same behavior as getfacl(1) on Solaris and Linux.
719 The new IPsec code is now compiled in using the IPSEC option. The
720 IPSEC option now requires "device crypto" be defined in your kernel
721 configuration. The FAST_IPSEC kernel option is now deprecated.
724 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
725 note the changed syntax - keep state is now on by default. Also
726 note the fact that ftp-proxy(8) has been changed from bottom up and
727 has been moved from libexec to usr/sbin. Changes in the ALTQ
728 handling also affect users of IPFW's ALTQ capabilities.
731 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
732 only IPsec supported by FreeBSD. The new IPsec stack
733 supports both IPv4 and IPv6. The kernel option will change
734 after the code changes have settled in. For now the kernel
735 option IPSEC is deprecated and FAST_IPSEC is the only option, that
736 will change after some settling time.
739 The wicontrol(8) utility has been removed from the base system. wi(4)
740 cards should be configured using ifconfig(8), see the man page for more
744 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
745 instead of the nve(4) driver. Please update your configuration
749 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
750 database if it is missing or older than the aliases file. If
751 desired, set the new rc.conf option sendmail_rebuild_aliases
752 to "YES" to restore that functionality.
755 The IPv4 multicast socket code has been considerably modified, and
756 moved to the file sys/netinet/in_mcast.c. Initial support for the
757 RFC 3678 Source-Specific Multicast Socket API has been added to
758 the IPv4 network stack.
760 Strict multicast and broadcast reception is now the default for
761 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
762 has now been removed.
764 The RFC 1724 hack for interface selection has been removed; the use
765 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
766 been added to replace it. Consumers such as routed will soon be
767 updated to reflect this.
769 These changes affect users who are running routed(8) or rdisc(8)
770 from the FreeBSD base system on point-to-point or unnumbered
774 The net80211 layer has changed significantly and all wireless
775 drivers that depend on it need to be recompiled. Further these
776 changes require that any program that interacts with the wireless
777 support in the kernel be recompiled; this includes: ifconfig,
778 wpa_supplicant, hostapd, and wlanstats. Users must also, for
779 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
780 if they use modules for wireless support. These modules implement
781 scanning support for station and ap modes, respectively. Failure
782 to load the appropriate module before marking a wireless interface
783 up will result in a message to the console and the device not
787 The pam_nologin(8) module ceases to provide an authentication
788 function and starts providing an account management function.
789 Consequent changes to /etc/pam.d should be brought in using
790 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
791 need manual editing as follows. Locate this line (or similar):
793 auth required pam_nologin.so no_warn
795 and change it according to this example:
797 account required pam_nologin.so no_warn
799 That is, the first word needs to be changed from "auth" to
800 "account". The new line can be moved to the account section
801 within the file for clarity. Not updating pam.conf(5) files
802 will result in nologin(5) ignored by the respective services.
805 The ether_ioctl() function has been synchronized with ioctl(2)
806 and ifnet.if_ioctl. Due to that, the size of one of its arguments
807 has changed on 64-bit architectures. All kernel modules using
808 ether_ioctl() need to be rebuilt on such architectures.
811 Improved INCLUDE_CONFIG_FILE support has been introduced to the
812 config(8) utility. In order to take advantage of this new
813 functionality, you are expected to recompile and install
814 src/usr.sbin/config. If you don't rebuild config(8), and your
815 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
816 build will be broken because of a missing "kernconfstring"
820 Symbol versioning is enabled by default. To disable it, use
821 option WITHOUT_SYMVER. It is not advisable to attempt to
822 disable symbol versioning once it is enabled; your installworld
823 will break because a symbol version-less libc will get installed
824 before the install tools. As a result, the old install tools,
825 which previously had symbol dependencies to FBSD_1.0, will fail
826 because the freshly installed libc will not have them.
828 The default threading library (providing "libpthread") has been
829 changed to libthr. If you wish to have libkse as your default,
830 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
833 The ABI breakage in sendmail(8)'s libmilter has been repaired
834 so it is no longer necessary to recompile mail filters (aka,
835 milters). If you recompiled mail filters after the 20070408
836 note, it is not necessary to recompile them again.
839 The new trunk(4) driver has been renamed to lagg(4) as it better
840 reflects its purpose. ifconfig will need to be recompiled.
843 sendmail(8) has been updated to version 8.14.1. Mail filters
844 (aka, milters) compiled against the libmilter included in the
845 base operating system should be recompiled.
848 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
849 In order to use them one must agree to the respective LICENSE in
850 share/doc/legal and define legal.intel_<name>.license_ack=1 via
851 loader.conf(5) or kenv(1). Make sure to deinstall the now
852 deprecated modules from the respective firmware ports.
855 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
856 were removed from FreeBSD's libc. These originally came from INRIA
857 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
858 deprecated in previous releases.
859 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
860 replace it as a more portable (and re-entrant) API.
863 To support interrupt filtering a modification to the newbus API
864 has occurred, ABI was broken and __FreeBSD_version was bumped
865 to 700031. Please make sure that your kernel and modules are in
867 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
870 The IPv6 multicast forwarding code may now be loaded into GENERIC
871 kernels by loading the ip_mroute.ko module. This is built into the
872 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
873 set; see src.conf(5) for more information.
876 The output of netstat -r has changed. Without -n, we now only
877 print a "network name" without the prefix length if the network
878 address and mask exactly match a Class A/B/C network, and an entry
879 exists in the nsswitch "networks" map.
880 With -n, we print the full unabbreviated CIDR network prefix in
881 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
882 This change is in preparation for changes such as equal-cost
883 multipath, and to more generally assist operational deployment
884 of FreeBSD as a modern IPv4 router.
887 PIM has been turned on by default in the IPv4 multicast
888 routing code. The kernel option 'PIM' has now been removed.
889 PIM is now built by default if option 'MROUTING' is specified.
890 It may now be loaded into GENERIC kernels by loading the
894 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
895 has been removed. Its functionality may be achieved by explicitly
896 configuring gif(4) interfaces and using the 'phyint' keyword in
898 XORP does not support source-routed IPv4 multicast tunnels nor the
899 integrated IPIP tunneling, therefore it is not affected by this
900 change. The __FreeBSD_version macro has been bumped to 700030.
903 Support for PCI Message Signalled Interrupts has been
904 re-enabled in the bge driver, only for those chips which are
905 believed to support it properly. If there are any problems,
906 MSI can be disabled completely by setting the
907 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
911 Support for PCI Message Signalled Interrupts has been
912 disabled again in the bge driver. Many revisions of the
913 hardware fail to support it properly. Support can be
914 re-enabled by removing the #define of BGE_DISABLE_MSI in
915 "src/sys/dev/bge/if_bge.c".
918 Support for PCI Message Signalled Interrupts has been added
919 to the bge driver. If there are any problems, MSI can be
920 disabled completely by setting the 'hw.pci.enable_msi' and
921 'hw.pci.enable_msix' tunables to 0 in the loader.
924 The removal of several facets of the experimental Threading
925 system from the kernel means that the proc and thread structures
926 have changed quite a bit. I suggest all kernel modules that might
927 reference these structures be recompiled.. Especially the
931 Sound infrastructure has been updated with various fixes and
932 improvements. Most of the changes are pretty much transparent,
933 with exceptions of followings:
934 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
935 moved to their own dev sysctl nodes, for example:
936 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
937 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
938 own chardev in the form of "dsp%d.<function>%d", where <function>
939 is p = playback, r = record and v = virtual, respectively. Users
940 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
941 This does not affect those who are using "/dev/dsp".
944 geom(4)'s gmirror(8) class metadata structure has been
945 rev'd from v3 to v4. If you update across this point and
946 your metadata is converted for you, you will not be easily
947 able to downgrade since the /boot/kernel.old/geom_mirror.ko
948 kernel module will be unable to read the v4 metadata. You
949 can resolve this by doing from the loader(8) prompt:
951 set vfs.root.mountfrom="ufs:/dev/XXX"
953 where XXX is the root slice of one of the disks that composed
954 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
955 the array the same way you built it originally.
958 The following binaries have been disconnected from the build:
959 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
960 and mount_std. The functionality of these programs has been
961 moved into the mount program. For example, to mount a devfs
962 filesystem, instead of using mount_devfs, use: "mount -t devfs".
963 This does not affect entries in /etc/fstab, since entries in
964 /etc/fstab are always processed with "mount -t fstype".
967 Support for PCI Message Signalled Interrupts on i386 and amd64
968 has been added to the kernel and various drivers will soon be
969 updated to use MSI when it is available. If there are any problems,
970 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
971 and 'hw.pci.enable_msix' tunables to 0 in the loader.
974 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
975 The lockmgr object layout has been changed as a result of having
976 a lock_object embedded in it. As a consequence all file system
977 kernel modules must be re-compiled. The mutex profiling man page
978 has not yet been updated to reflect this change.
981 KSE in the kernel has now been made optional and turned on by
982 default. Use 'nooption KSE' in your kernel config to turn it
983 off. All kernel modules *must* be recompiled after this change.
984 There-after, modules from a KSE kernel should be compatible with
985 modules from a NOKSE kernel due to the temporary padding fields
986 added to 'struct proc'.
989 mrouted and its utilities have been removed from the base system.
992 Some ioctl(2) command codes have changed. Full backward ABI
993 compatibility is provided if the "options COMPAT_FREEBSD6" is
994 present in the kernel configuration file. Make sure to add
995 this option to your kernel config file, or recompile X.Org
996 and the rest of ports; otherwise they may refuse to work.
999 tcpslice has been removed from the base system.
1002 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1003 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1004 systat needs to be rebuilt.
1007 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1010 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1011 for IPFIREWALL_FORWARD is now as it was before when it was first
1012 committed and for years after. The behaviour is now ON.
1015 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1016 Now it can decrypt files created from different architectures.
1017 Unfortunately, it is no longer able to decrypt a cipher text
1018 generated with an older version on 64 bit architectures.
1019 If you have such a file, you need old utility to decrypt it.
1022 The interface version of the i4b kernel part has changed. So
1023 after updating the kernel sources and compiling a new kernel,
1024 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1025 be rebuilt, and vice versa.
1028 The XBOX kernel now defaults to the nfe(4) driver instead of
1029 the nve(4) driver. Please update your configuration
1033 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1034 PCnet family of NICs has been removed. The new le(4) driver serves
1035 as an equivalent but cross-platform replacement with the pcn(4)
1036 driver still providing performance-optimized support for the subset
1037 of AMD Am79C971 PCnet-FAST and greater chips as before.
1040 The machdep.* sysctls and the adjkerntz utility have been
1041 modified a bit. The new adjkerntz utility uses the new
1042 sysctl names and sysctlbyname() calls, so it may be impossible
1043 to run an old /sbin/adjkerntz utility in single-user mode
1044 with a new kernel. Replace the `adjkerntz -i' step before
1045 `make installworld' with:
1047 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1049 and proceed as usual with the rest of the installworld-stage
1050 steps. Otherwise, you risk installing binaries with their
1051 timestamp set several hours in the future, especially if
1052 you are running with local time set to GMT+X hours.
1055 The ip6fw utility has been removed. The behavior provided by
1056 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1057 have been updated to deal with it. There are some rules that
1058 might not migrate cleanly. Use rc.firewall6 as a template to
1062 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1063 attachments have been removed. Make sure to configure scc(4)
1064 on sparc64. Note also that by default puc(4) will use uart(4)
1065 and not sio(4) for serial ports because interrupt handling has
1066 been optimized for multi-port serial cards and only uart(4)
1067 implements the interface to support it.
1070 The scc(4) driver replaces puc(4) for Serial Communications
1071 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1072 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1073 configuration to make sure that the serial ports remain
1077 Most world/kernel related NO_* build options changed names.
1078 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1079 after FreeBSD ports) and should be set in /etc/src.conf
1080 (the src.conf(5) manpage is provided). Full backwards
1081 compatibility is maintained for the time being though it's
1082 highly recommended to start moving old options out of the
1083 system-wide /etc/make.conf file into the new /etc/src.conf
1084 while also properly renaming them. More conversions will
1085 likely follow. Posting to current@:
1087 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1090 The NETSMBCRYPTO kernel option has been retired because its
1091 functionality is always included in NETSMB and smbfs.ko now.
1094 The TDFX_LINUX kernel option was retired and replaced by the
1095 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1096 kernel module. Loading it alone should suffice to get 3dfx support
1097 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1101 The 'audit' group was added to support the new auditing functionality
1102 in the base system. Be sure to follow the directions for updating,
1103 including the requirement to run mergemaster -p.
1106 The kernel ABI to file system modules was changed on i386.
1107 Please make sure that your kernel and modules are in sync.
1110 This actually occured some time ago, but installing the kernel
1111 now also installs a bunch of symbol files for the kernel modules.
1112 This increases the size of /boot/kernel to about 67Mbytes. You
1113 will need twice this if you will eventually back this up to kernel.old
1114 on your next install.
1115 If you have a shortage of room in your root partition, you should add
1116 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1117 to your /etc/make.conf.
1120 libc's malloc implementation has been replaced. This change has the
1121 potential to uncover application bugs that previously went unnoticed.
1122 See the malloc(3) manual page for more details.
1125 The generic netgraph(4) cookie has been changed. If you upgrade
1126 kernel passing this point, you also need to upgrade userland
1127 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1130 si(4)'s device files now contain the unit number.
1131 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1134 The kernel ABI was mostly destroyed due to a change in the size
1135 of struct lock_object which is nested in other structures such
1136 as mutexes which are nested in all sorts of other structures.
1137 Make sure your kernel and modules are in sync.
1140 The page coloring algorithm in the VM subsystem was converted
1141 from tuning with kernel options to autotuning. Please remove
1142 any PQ_* option except PQ_NOOPT from your kernel config.
1145 The net80211-related tools in the tools/tools/ath directory
1146 have been moved to tools/tools/net80211 and renamed with a
1147 "wlan" prefix. Scripts that use them should be adjusted
1151 Scripts in the local_startup directories (as defined in
1152 /etc/defaults/rc.conf) that have the new rc.d semantics will
1153 now be run as part of the base system rcorder. If there are
1154 errors or problems with one of these local scripts, it could
1155 cause boot problems. If you encounter such problems, boot in
1156 single user mode, remove that script from the */rc.d directory.
1157 Please report the problem to the port's maintainer, and the
1158 freebsd-ports@freebsd.org mailing list.
1161 The nodev mount option was deprecated in RELENG_6 (where it
1162 was a no-op), and is now unsupported. If you have nodev or dev listed
1163 in /etc/fstab, remove it, otherwise it will result in a mount error.
1166 ABI between ipfw(4) and ipfw(8) has been changed. You need
1167 to rebuild ipfw(8) when rebuilding kernel.
1170 rp(4)'s device files now contain the unit number.
1171 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1174 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1175 Its /etc/rc.conf.d configuration file has been `ppp' from
1176 the beginning, and hence there is no need to touch it.
1179 Now most modules get their build-time options from the kernel
1180 configuration file. A few modules still have fixed options
1181 due to their non-conformant implementation, but they will be
1182 corrected eventually. You may need to review the options of
1183 the modules in use, explicitly specify the non-default options
1184 in the kernel configuration file, and rebuild the kernel and
1188 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1189 to turn polling(4) on your interfaces.
1192 The old bridge(4) implementation was retired. The new
1193 if_bridge(4) serves as a full functional replacement.
1196 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1197 to conform to POSIX-2001. This change broke an ABI
1198 compatibility on 64 bit architecture. You have to recompile
1199 userland programs that use getaddrinfo(3) on 64 bit
1203 RELENG_6 branched here.
1206 The pccard_ifconfig rc.conf variable has been removed and a new
1207 variable, ifconfig_DEFAULT has been introduced. Unlike
1208 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1209 do not have ifconfig_ifn entries rather than just those in
1210 removable_interfaces.
1213 Some previous versions of PAM have permitted the use of
1214 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1215 to third party PAM modules in /usr/local/lib. A change has been
1216 made to require the use of absolute paths in order to avoid
1217 ambiguity and dependence on library path configuration, which may
1218 affect existing configurations.
1221 Major changes to network interface API. All drivers must be
1222 recompiled. Drivers not in the base system will need to be
1223 updated to the new APIs.
1226 Changes were made to kinfo_proc in sys/user.h. Please recompile
1227 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1228 will not behave correctly.
1230 The API and ABI for hwpmc(4) have changed with the addition
1231 of sampling support. Please recompile lib/libpmc(3) and
1232 usr.sbin/{pmcstat,pmccontrol}.
1235 The OpenBSD dhclient was imported in place of the ISC dhclient
1236 and the network interface configuration scripts were updated
1237 accordingly. If you use DHCP to configure your interfaces, you
1238 must now run devd. Also, DNS updating was lost so you will need
1239 to find a workaround if you use this feature.
1241 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1242 sure to run mergemaster -p (like you are supposed to do every time
1246 if_bridge was added to the tree. This has changed struct ifnet.
1247 Please recompile userland and all network related modules.
1250 The n_net of a struct netent was changed to an uint32_t, and
1251 1st argument of getnetbyaddr() was changed to an uint32_t, to
1252 conform to POSIX-2001. These changes broke an ABI
1253 compatibility on 64 bit architecture. With these changes,
1254 shlib major of libpcap was bumped. You have to recompile
1255 userland programs that use getnetbyaddr(3), getnetbyname(3),
1256 getnetent(3) and/or libpcap on 64 bit architecture.
1259 Kernel parsing of extra options on '#!' first lines of shell
1260 scripts has changed. Lines with multiple options likely will
1261 fail after this date. For full details, please see
1262 http://people.freebsd.org/~gad/Updating-20050528.txt
1265 The packet filter (pf) code has been updated to OpenBSD 3.7
1266 Please note the changed anchor syntax and the fact that
1267 authpf(8) now needs a mounted fdescfs(5) to function.
1270 The NO_MIXED_MODE kernel option has been removed from the i386
1271 amd64 platforms as its use has been superceded by the new local
1272 APIC timer code. Any kernel config files containing this option
1276 The on-disk format of LC_CTYPE files was changed to be machine
1277 independent. Please make sure NOT to use NO_CLEAN buildworld
1278 when crossing this point. Crossing this point also requires
1279 recompile or reinstall of all locale depended packages.
1282 The ifi_epoch member of struct if_data has been changed to
1283 contain the uptime at which the interface was created or the
1284 statistics zeroed rather then the wall clock time because
1285 wallclock time may go backwards. This should have no impact
1286 unless an snmp implementation is using this value (I know of
1287 none at this point.)
1290 The acpi_perf and acpi_throttle drivers are now part of the
1291 acpi(4) main module. They are no longer built separately.
1294 The layout of struct image_params has changed. You have to
1295 recompile all compatibility modules (linux, svr4, etc) for use
1296 with the new kernel.
1299 The p4tcc driver has been merged into cpufreq(4). This makes
1300 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1301 compile in "device cpufreq" to restore this functionality.
1304 The responsibility of recomputing the file system summary of
1305 a SoftUpdates-enabled dirty volume has been transferred to the
1306 background fsck. A rebuild of fsck(8) utility is recommended
1307 if you have updated the kernel.
1309 To get the old behavior (recompute file system summary at mount
1310 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1311 mounting the new volume.
1314 The cpufreq import is complete. As part of this, the sysctls for
1315 acpi(4) throttling have been removed. The power_profile script
1316 has been updated, so you can use performance/economy_cpu_freq in
1317 rc.conf(5) to set AC on/offline cpu frequencies.
1320 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1321 requires recompiling libnetgraph and userland netgraph utilities.
1324 Support for abbreviated forms of a number of ipfw options is
1325 now deprecated. Warnings are printed to stderr indicating the
1326 correct full form when a match occurs. Some abbreviations may
1327 be supported at a later date based on user feedback. To be
1328 considered for support, abbreviations must be in use prior to
1329 this commit and unlikely to be confused with current key words.
1332 By a popular demand, a lot of NOFOO options were renamed
1333 to NO_FOO (see bsd.compat.mk for a full list). The old
1334 spellings are still supported, but will cause annoying
1335 warnings on stderr. Make sure you upgrade properly (see
1336 the COMMON ITEMS: section later in this file).
1339 Auto-loading of ancillary wlan modules such as wlan_wep has
1340 been temporarily disabled; you need to statically configure
1341 the modules you need into your kernel or explicitly load them
1342 prior to use. Specifically, if you intend to use WEP encryption
1343 with an 802.11 device load/configure wlan_wep; if you want to
1344 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1345 and wlan_xauth as required.
1348 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1349 (``enable lqr''), older versions would revert to LCP ECHO mode on
1350 negotiation failure. Now, ``enable echo'' is required for this
1351 behaviour. The ppp version number has been bumped to 3.4.2 to
1355 The wlan support has been updated to split the crypto support
1356 into separate modules. For static WEP you must configure the
1357 wlan_wep module in your system or build and install the module
1358 in place where it can be loaded (the kernel will auto-load
1359 the module when a wep key is configured).
1362 The ath driver has been updated to split the tx rate control
1363 algorithm into a separate module. You need to include either
1364 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1367 Support for systems with an 80386 CPU has been removed. Please
1368 use FreeBSD 5.x or earlier on systems with an 80386.
1371 We have had a hack which would mount the root filesystem
1372 R/W if the device were named 'md*'. As part of the vnode
1373 work I'm doing I have had to remove this hack. People
1374 building systems which use preloaded MD root filesystems
1375 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1376 their /etc/rc scripts.
1379 FreeBSD 5.3 shipped here.
1382 The size of struct tcpcb has changed again due to the removal
1383 of RFC1644 T/TCP. You have to recompile userland programs that
1384 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1387 The size of struct tcpcb has changed. You have to recompile
1388 userland programs that read kmem for tcp sockets directly
1389 (netstat, sockstat, etc.)
1392 RELENG_5 branched here. For older entries, please see updating
1393 in the RELENG_5 branch.
1399 Avoid using make -j when upgrading. From time to time in the
1400 past there have been problems using -j with buildworld and/or
1401 installworld. This is especially true when upgrading between
1402 "distant" versions (eg one that cross a major release boundary
1403 or several minor releases, or when several months have passed
1404 on the -current branch).
1406 Sometimes, obscure build problems are the result of environment
1407 poisoning. This can happen because the make utility reads its
1408 environment when searching for values for global variables.
1409 To run your build attempts in an "environmental clean room",
1410 prefix all make commands with 'env -i '. See the env(1) manual
1411 page for more details.
1413 When upgrading from one major version to another it is generally
1414 best to upgrade to the latest code in the currently installed branch
1415 first, then do an upgrade to the new branch. This is the best-tested
1416 upgrade path, and has the highest probability of being successful.
1417 Please try this approach before reporting problems with a major
1422 If you are updating from a prior version of FreeBSD (even one just
1423 a few days old), you should follow this procedure. It is the most
1424 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1426 make kernel-toolchain
1427 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1428 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1430 To test a kernel once
1431 ---------------------
1432 If you just want to boot a kernel once (because you are not sure
1433 if it works, or if you want to boot a known bad kernel to provide
1434 debugging information) run
1435 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1436 nextboot -k testkernel
1438 To just build a kernel when you know that it won't mess you up
1439 --------------------------------------------------------------
1440 This assumes you are already running a 5.X system. Replace
1441 ${arch} with the architecture of your machine (e.g. "i386",
1442 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1444 cd src/sys/${arch}/conf
1445 config KERNEL_NAME_HERE
1446 cd ../compile/KERNEL_NAME_HERE
1451 If this fails, go to the "To build a kernel" section.
1453 To rebuild everything and install it on the current system.
1454 -----------------------------------------------------------
1455 # Note: sometimes if you are running current you gotta do more than
1456 # is listed here if you are upgrading from a really old current.
1458 <make sure you have good level 0 dumps>
1460 make kernel KERNCONF=YOUR_KERNEL_HERE
1462 <reboot in single user> [3]
1470 To cross-install current onto a separate partition
1471 --------------------------------------------------
1472 # In this approach we use a separate partition to hold
1473 # current's root, 'usr', and 'var' directories. A partition
1474 # holding "/", "/usr" and "/var" should be about 2GB in
1477 <make sure you have good level 0 dumps>
1480 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1481 <maybe newfs current's root partition>
1482 <mount current's root partition on directory ${CURRENT_ROOT}>
1483 make installworld DESTDIR=${CURRENT_ROOT}
1484 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1485 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1486 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1487 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1488 <reboot into current>
1489 <do a "native" rebuild/install as described in the previous section>
1490 <maybe install compatibility libraries from ports/misc/compat*>
1494 To upgrade in-place from 5.x-stable to current
1495 ----------------------------------------------
1496 <make sure you have good level 0 dumps>
1498 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1500 <reboot in single user> [3]
1507 Make sure that you've read the UPDATING file to understand the
1508 tweaks to various things you need. At this point in the life
1509 cycle of current, things change often and you are on your own
1510 to cope. The defaults can also change, so please read ALL of
1511 the UPDATING entries.
1513 Also, if you are tracking -current, you must be subscribed to
1514 freebsd-current@freebsd.org. Make sure that before you update
1515 your sources that you have read and understood all the recent
1516 messages there. If in doubt, please track -stable which has
1517 much fewer pitfalls.
1519 [1] If you have third party modules, such as vmware, you
1520 should disable them at this point so they don't crash your
1523 [3] From the bootblocks, boot -s, and then do
1528 adjkerntz -i # if CMOS is wall time
1529 Also, when doing a major release upgrade, it is required that
1530 you boot into single user mode to do the installworld.
1532 [4] Note: This step is non-optional. Failure to do this step
1533 can result in a significant reduction in the functionality of the
1534 system. Attempting to do it by hand is not recommended and those
1535 that pursue this avenue should read this file carefully, as well
1536 as the archives of freebsd-current and freebsd-hackers mailing lists
1537 for potential gotchas.
1539 [5] Usually this step is a noop. However, from time to time
1540 you may need to do this if you get unknown user in the following
1541 step. It never hurts to do it all the time. You may need to
1542 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1543 install) after the buildworld before this step if you last updated
1544 from current before 20020224 or from -stable before 20020408.
1546 [8] In order to have a kernel that can run the 4.x binaries
1547 needed to do an installworld, you must include the COMPAT_FREEBSD4
1548 option in your kernel. Failure to do so may leave you with a system
1549 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1550 is required to run the 5.x binaries on more recent kernels.
1552 Make sure that you merge any new devices from GENERIC since the
1553 last time you updated your kernel config file.
1555 [9] When checking out sources, you must include the -P flag to have
1556 cvs prune empty directories.
1558 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1559 "?=" instead of the "=" assignment operator, so that buildworld can
1560 override the CPUTYPE if it needs to.
1562 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1563 not on the command line, or in /etc/make.conf. buildworld will
1564 warn if it is improperly defined.
1567 This file contains a list, in reverse chronological order, of major
1568 breakages in tracking -current. Not all things will be listed here,
1569 and it only starts on October 16, 2004. Updating files can found in
1570 previous releases if your system is older than this.
1572 Copyright information:
1574 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1576 Redistribution, publication, translation and use, with or without
1577 modification, in full or in part, in any form or format of this
1578 document are permitted without further permission from the author.
1580 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1581 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1582 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1583 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1584 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1585 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1586 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1587 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1588 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1589 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1590 POSSIBILITY OF SUCH DAMAGE.
1592 If you find this document useful, and you want to, you may buy the
1595 Contact Warner Losh if you have any questions about your use of