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 ON IA64 OR SUN4V:
12 For ia64 the INVARIANTS and INVARIANT_SUPPORT kernel options
13 were left in the GENERIC kernel because the kernel does not
14 work properly without them. For sun4v all of the normal kernel
15 debugging tools present in HEAD were left in place because
16 sun4v support still needs work to become production ready.
18 20100920: p1 FreeBSD-SA-10:08.bzip2
19 Fix an integer overflow in RLE length parsing when decompressing
25 20100713: FreeBSD-SA-10:07.mbuf
26 Correctly copy the M_RDONLY flag when duplicating a reference
27 to an mbuf external buffer.
30 The config(8) command has been updated to maintain compatibility
31 with config files from 8.0-RELEASE. You will need a new version
32 of config to build kernels (this version can be used from 8.0-RELEASE
33 forward). The buildworld target will generate it, so following
34 the instructions in this file for updating will work glitch-free.
35 Merely doing a make buildkernel without first doing a make buildworld
36 (or kernel-toolchain), or attempting to build a kernel using
37 traidtional methods will generate a config version warning, indicating
41 The rc.firewall and rc.firewall6 were unified, and
42 rc.firewall6 and rc.d/ip6fw were removed.
43 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
44 variables are obsoleted. Instead, the following new rc
45 variables are added to rc.d/ipfw:
47 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
48 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
49 firewall_simple_onet_ipv6
51 The meanings correspond to the relevant IPv4 variables.
54 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
55 version of config(8) is required. The error message when you hit this
56 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
57 should really say "your config is too old to compile this new kernel."
60 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
61 to allow 32-bit compatibility on non-x86 platforms. All kernel
62 configurations on amd64 and ia64 platforms using these options must
63 be modified accordingly.
66 Introduce the kernel thread "deadlock resolver" (which can be enabled
67 via the DEADLKRES option, see NOTES for more details) and the
68 sleepq_type() function for sleepqueues.
74 802.11s D3.03 support was committed. This is incompatible with
75 the previous code, which was based on D3.0.
78 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
79 mount(8) and -a option for df(1) to see them.
82 Remove the option STOP_NMI. The default action is now to use NMI
83 only for KDB via the newly introduced function stop_cpus_hard()
84 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
91 Bump the shared library version numbers for all libraries that
92 do not use symbol versioning as part of the 8.0-RELEASE cycle.
93 Bump __FreeBSD_version to 800105.
96 Due to changes in the implementation of virtual network stack
97 support, all network-related kernel modules must be recompiled.
98 As this change breaks the ABI, bump __FreeBSD_version to 800104.
101 The TOE interface to the TCP syncache has been modified to remove struct
102 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
103 cxgb driver is the only TOE consumer affected by this change, and needs
104 to be recompiled along with the kernel. As this change breaks the ABI,
105 bump __FreeBSD_version to 800103.
108 Padding has been added to struct tcpcb, sackhint and tcpstat in
109 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
110 maintainig the ABI. However, this change breaks the ABI, so bump
111 __FreeBSD_version to 800102. User space tools that rely on the size of
112 any of these structs (e.g. sockstat) need to be recompiled.
115 The NFS_LEGACYRPC option has been removed along with the old
116 kernel RPC implementation that this option selected. Kernel
117 configurations may need to be adjusted.
120 The network interface device nodes at /dev/net/<interface> have
121 been removed. All ioctl operations can be performed the normal
122 way using routing sockets. The kqueue functionality can
123 generally be replaced with routing sockets.
126 The documentation from the FreeBSD Documentation Project
127 (Handbook, FAQ, etc.) is now installed via packages by
128 sysinstall(8) and under the /usr/local/share/doc/freebsd
129 directory instead of /usr/share/doc.
132 The ABI of various structures related to the SYSV IPC API have
133 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
134 kernel options now all require COMPAT_FREEBSD7.
135 Bump __FreeBSD_version to 800100.
138 Layout of struct vnet has changed as routing related variables
139 were moved to their own Vimage module. Modules need to be
140 recompiled. Bump __FreeBSD_version to 800099.
143 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
144 and 1024 respectively. As long as no more than 16 groups per
145 process are used, no changes should be visible. When more
146 than 16 groups are used, old binaries may fail if they call
147 getgroups() or getgrouplist() with statically sized storage.
148 Recompiling will work around this, but applications should be
149 modified to use dynamically allocated storage for group arrays
150 as POSIX.1-2008 does not cap an implementation's number of
151 supported groups at NGROUPS_MAX+1 as previous versions did.
153 NFS and portalfs mounts may also be affected as the list of
154 groups is truncated to 16. Users of NFS who use more than 16
155 groups, should take care that negative group permissions are not
156 used on the exported file systems as they will not be reliable
157 unless a GSSAPI based authentication method is used.
160 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
161 This option compiles in the support for adaptive spinning for lockmgrs
162 which want to enable it. The lockinit() function now accepts the
163 flag LK_ADAPTIVE in order to make the lock object subject to
164 adaptive spinning when both held in write and read mode.
167 The layout of the structure returned by IEEE80211_IOC_STA_INFO
168 has changed. User applications that use this ioctl need to be
172 The layout of struct thread has changed. Kernel and modules
176 The layout of structs ifnet, domain, protosw and vnet_net has
177 changed. Kernel modules need to be rebuilt.
178 Bump __FreeBSD_version to 800097.
181 window(1) has been removed from the base system. It can now be
182 installed from ports. The port is called misc/window.
185 The way we are storing and accessing `routing table' entries
186 has changed. Programs reading the FIB, like netstat, need to
190 A new netisr implementation has been added for FreeBSD 8. Network
191 file system modules, such as igmp, ipdivert, and others, should be
193 Bump __FreeBSD_version to 800096.
196 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
200 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
201 Bump __FreeBSD_version to 800094.
204 Add mnt_xflag field to 'struct mount'. File system modules
206 Bump __FreeBSD_version to 800093.
209 The compiling option ADAPTIVE_SX has been retired while it has been
210 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
211 The KPI for sx_init_flags() changes as accepting flags:
212 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
213 has been introduced in order to handle the reversed logic.
214 Bump __FreeBSD_version to 800092.
217 Add support for hierarchical jails. Remove global securelevel.
218 Bump __FreeBSD_version to 800091.
221 The layout of struct vnet_net has changed, therefore modules
223 Bump __FreeBSD_version to 800090.
226 The newly imported zic(8) produces a new format in the
227 output. Please run tzsetup(8) to install the newly created
228 data to /etc/localtime.
231 The sysctl tree for the usb stack has renamed from hw.usb2.* to
232 hw.usb.* and is now consistent again with previous releases.
235 802.11 monitor mode support was revised and driver api's
236 were changed. Drivers dependent on net80211 now support
237 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
238 user-visible data structures were changed but applications
239 that use DLT_IEEE802_11 may require changes.
240 Bump __FreeBSD_version to 800088.
243 The layout of the following structs has changed: sysctl_oid,
244 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
245 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
246 panics may be experienced. World rebuild is required for
247 correctly checking networking state from userland.
248 Bump __FreeBSD_version to 800085.
251 MLDv2 and Source-Specific Multicast (SSM) have been merged
252 to the IPv6 stack. VIMAGE hooks are in but not yet used.
253 The implementation of SSM within FreeBSD's IPv6 stack closely
254 follows the IPv4 implementation.
256 For kernel developers:
258 * The most important changes are that the ip6_output() and
259 ip6_input() paths no longer take the IN6_MULTI_LOCK,
260 and this lock has been downgraded to a non-recursive mutex.
262 * As with the changes to the IPv4 stack to support SSM, filtering
263 of inbound multicast traffic must now be performed by transport
264 protocols within the IPv6 stack. This does not apply to TCP and
265 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
267 * The KPIs used by IPv6 multicast are similar to those used by
268 the IPv4 stack, with the following differences:
269 * im6o_mc_filter() is analogous to imo_multicast_filter().
270 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
271 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
272 * IN6_LOOKUP_MULTI() has been deprecated and removed.
273 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
274 for MLDv1 have an additional 'timer' argument which is used to
275 jitter the initial membership report for the solicited-node
276 multicast membership on-link.
277 * This is not strictly needed for MLDv2, which already jitters
278 its report transmissions. However, the 'timer' argument is
279 preserved in case MLDv1 is active on the interface.
281 * The KAME linked-list based IPv6 membership implementation has
282 been refactored to use a vector similar to that used by the IPv4
284 Code which maintains a list of its own multicast memberships
285 internally, e.g. carp, has been updated to reflect the new
288 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
289 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
290 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
291 implementation constraint which needs to be addressed in HEAD.
293 For application developers:
295 * The changes are broadly similar to those made for the IPv4
298 * The use of IPv4 and IPv6 multicast socket options on the same
299 socket, using mapped addresses, HAS NOT been tested or supported.
301 * There are a number of issues with the implementation of various
302 IPv6 multicast APIs which need to be resolved in the API surface
303 before the implementation is fully compatible with KAME userland
304 use, and these are mostly to do with interface index treatment.
306 * The literature available discusses the use of either the delta / ASM
307 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
308 using setsourcefilter(3)/getsourcefilter(3). For more information
309 please refer to RFC 3768, 'Socket Interface Extensions for
310 Multicast Source Filters'.
312 * Applications which use the published RFC 3678 APIs should be fine.
314 For systems administrators:
316 * The mtest(8) utility has been refactored to support IPv6, in
317 addition to IPv4. Interface addresses are no longer accepted
318 as arguments, their names must be used instead. The utility
319 will map the interface name to its first IPv4 address as
320 returned by getifaddrs(3).
322 * The ifmcstat(8) utility has also been updated to print the MLDv2
323 endpoint state and source filter lists via sysctl(3).
325 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
326 loopback of IPv6 multicast datagrams by default; it defaults to 1
327 to preserve the existing behaviour. Disabling multicast loopback is
328 recommended for optimal system performance.
330 * The IPv6 MROUTING code has been changed to examine this sysctl
331 instead of attempting to perform a group lookup before looping
332 back forwarded datagrams.
334 Bump __FreeBSD_version to 800084.
337 Implement low-level Bluetooth HCI API.
338 Bump __FreeBSD_version to 800083.
341 The layout of struct malloc_type, used by modules to register new
342 memory allocation types, has changed. Most modules will need to
343 be rebuilt or panics may be experienced.
344 Bump __FreeBSD_version to 800081.
347 Anticipate overflowing inp_flags - add inp_flags2.
348 This changes most offsets in inpcb, so checking v4 connection
349 state will require a world rebuild.
350 Bump __FreeBSD_version to 800080.
353 Add an llentry to struct route and struct route_in6. Modules
354 embedding a struct route will need to be recompiled.
355 Bump __FreeBSD_version to 800079.
358 The size of rt_metrics_lite and by extension rtentry has changed.
359 Networking administration apps will need to be recompiled.
360 The route command now supports show as an alias for get, weighting
361 of routes, sticky and nostick flags to alter the behavior of stateful
363 Bump __FreeBSD_version to 800078.
366 Do not use Giant for kbdmux(4) locking. This is wrong and
367 apparently causing more problems than it solves. This will
368 re-open the issue where interrupt handlers may race with
369 kbdmux(4) in polling mode. Typical symptoms include (but
370 not limited to) duplicated and/or missing characters when
371 low level console functions (such as gets) are used while
372 interrupts are enabled (for example geli password prompt,
373 mountroot prompt etc.). Disabling kbdmux(4) may help.
376 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
377 kernel modules referencing any of the above need to be recompiled.
378 Bump __FreeBSD_version to 800075.
381 GEOM_PART has become the default partition slicer for storage devices,
382 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
383 introduces some changes:
385 MSDOS/EBR: the devices created from MSDOS extended partition entries
386 (EBR) can be named differently than with GEOM_MBR and are now symlinks
387 to devices with offset-based names. fstabs may need to be modified.
389 BSD: the "geometry does not match label" warning is harmless in most
390 cases but it points to problems in file system misalignment with
391 disk geometry. The "c" partition is now implicit, covers the whole
392 top-level drive and cannot be (mis)used by users.
394 General: Kernel dumps are now not allowed to be written to devices
395 whose partition types indicate they are meant to be used for file
396 systems (or, in case of MSDOS partitions, as something else than
399 Most of these changes date approximately from 200812.
402 The uscanner(4) driver has been removed from the kernel. This follows
403 Linux removing theirs in 2.6 and making libusb the default interface
407 The multicast forwarding code has been cleaned up. netstat(1)
408 only relies on KVM now for printing bandwidth upcall meters.
409 The IPv4 and IPv6 modules are split into ip_mroute_mod and
410 ip6_mroute_mod respectively. The config(5) options for statically
411 compiling this code remain the same, i.e. 'options MROUTING'.
414 Support for the IFF_NEEDSGIANT network interface flag has been
415 removed, which means that non-MPSAFE network device drivers are no
416 longer supported. In particular, if_ar, if_sr, and network device
417 drivers from the old (legacy) USB stack can no longer be built or
421 POSIX.1 Native Language Support (NLS) has been enabled in libc and
422 a bunch of new language catalog files have also been added.
423 This means that some common libc messages are now localized and
424 they depend on the LC_MESSAGES environmental variable.
427 The k8temp(4) driver has been renamed to amdtemp(4) since
428 support for K10 and K11 CPU families was added.
431 IGMPv3 and Source-Specific Multicast (SSM) have been merged
432 to the IPv4 stack. VIMAGE hooks are in but not yet used.
434 For kernel developers, the most important changes are that the
435 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
436 and this lock has been downgraded to a non-recursive mutex.
438 Transport protocols (UDP, Raw IP) are now responsible for filtering
439 inbound multicast traffic according to group membership and source
440 filters. The imo_multicast_filter() KPI exists for this purpose.
441 Transports which do not use multicast (SCTP, TCP) already reject
442 multicast by default. Forwarding and receive performance may improve
443 as a mutex acquisition is no longer needed in the ip_input()
444 low-level input path. in_addmulti() and in_delmulti() are shimmed
445 to new KPIs which exist to support SSM in-kernel.
447 For application developers, it is recommended that loopback of
448 multicast datagrams be disabled for best performance, as this
449 will still cause the lock to be taken for each looped-back
450 datagram transmission. The net.inet.ip.mcast.loop sysctl may
451 be tuned to 0 to disable loopback by default; it defaults to 1
452 to preserve the existing behaviour.
454 For systems administrators, to obtain best performance with
455 multicast reception and multiple groups, it is always recommended
456 that a card with a suitably precise hash filter is used. Hash
457 collisions will still result in the lock being taken within the
458 transport protocol input path to check group membership.
460 If deploying FreeBSD in an environment with IGMP snooping switches,
461 it is recommended that the net.inet.igmp.sendlocal sysctl remain
462 enabled; this forces 224.0.0.0/24 group membership to be announced
465 The size of 'struct igmpstat' has changed; netstat needs to be
466 recompiled to reflect this.
467 Bump __FreeBSD_version to 800070.
470 libusb20.so.1 is now installed as libusb.so.1 and the ports system
471 updated to use it. This requires a buildworld/installworld in order to
472 update the library and dependencies (usbconfig, etc). Its advisable to
473 rebuild all ports which uses libusb. More specific directions are given
474 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
475 libusb are no longer required and can be removed.
478 A workaround is committed to allow the creation of System V shared
479 memory segment of size > 2 GB on the 64-bit architectures.
480 Due to a limitation of the existing ABI, the shm_segsz member
481 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
482 wrong for large segments. Note that limits must be explicitly
483 raised to allow such segments to be created.
486 The layout of struct ifnet has changed, requiring a rebuild of all
487 network device driver modules.
490 The /dev handling for the new USB stack has changed, a
491 buildworld/installworld is required for libusb20.
494 The new USB2 stack has now been permanently moved in and all kernel and
495 module names reverted to their previous values (eg, usb, ehci, ohci,
496 ums, ...). The old usb stack can be compiled in by prefixing the name
497 with the letter 'o', the old usb modules have been removed.
498 Updating entry 20090216 for xorg and 20090215 for libmap may still
502 The rc.conf(5) option if_up_delay has been renamed to
503 defaultroute_delay to better reflect its purpose. If you have
504 customized this setting in /etc/rc.conf you need to update it to
508 xorg 7.4 wants to configure its input devices via hald which does not
509 yet work with USB2. If the keyboard/mouse does not work in xorg then
511 Option "AllowEmptyInput" "off"
512 to your ServerLayout section. This will cause X to use the configured
513 kbd and mouse sections from your xorg.conf.
516 The GENERIC kernels for all architectures now default to the new USB2
517 stack. No kernel config options or code have been removed so if a
518 problem arises please report it and optionally revert to the old USB
519 stack. If you are loading USB kernel modules or have a custom kernel
520 that includes GENERIC then ensure that usb names are also changed over,
521 eg uftdi -> usb2_serial_ftdi.
523 Older programs linked against the ports libusb 0.1 need to be
524 redirected to the new stack's libusb20. /etc/libmap.conf can
526 # Map old usb library to new one for usb2 stack
527 libusb-0.1.so.8 libusb20.so.1
530 All USB ethernet devices now attach as interfaces under the name ueN
531 (eg. ue0). This is to provide a predictable name as vendors often
532 change usb chipsets in a product without notice.
535 The ichsmb(4) driver has been changed to require SMBus slave
536 addresses be left-justified (xxxxxxx0b) rather than right-justified.
537 All of the other SMBus controller drivers require left-justified
538 slave addresses, so this change makes all the drivers provide the
542 INET6 statistics (struct ip6stat) was updated.
543 netstat(1) needs to be recompiled.
546 NTFS has been removed from GENERIC kernel on amd64 to match
547 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
548 will load ntfs.ko module automatically when NTFS support is
549 actually needed, unless ntfs.ko is not installed or security
550 level prohibits loading kernel modules. If either is the case,
551 "options NTFS" has to be added into kernel config.
554 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
555 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
556 800061. User space tools that rely on the size of struct tcpcb in
557 tcp_var.h (e.g. sockstat) need to be recompiled.
560 ng_tty(4) module updated to match the new TTY subsystem.
561 Due to API change, user-level applications must be updated.
562 New API support added to mpd5 CVS and expected to be present
563 in next mpd5.3 release.
566 With __FreeBSD_version 800060 the makefs tool is part of
567 the base system (it was a port).
570 The afdata and ifnet locks have been changed from mutexes to
571 rwlocks, network modules will need to be re-compiled.
574 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
575 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
576 The new code reduced struct rtentry{} by 16 bytes on 32-bit
577 architecture and 40 bytes on 64-bit architecture. The userland
578 applications "arp" and "ndp" have been updated accordingly.
579 The output from "netstat -r" shows only routing entries and
580 none of the L2 information.
583 __FreeBSD_version 800057 marks the switchover from the
584 binary ath hal to source code. Users must add the line:
586 options AH_SUPPORT_AR5416
588 to their kernel config files when specifying:
592 The ath_hal module no longer exists; the code is now compiled
593 together with the driver in the ath module. It is now
594 possible to tailor chip support (i.e. reduce the set of chips
595 and thereby the code size); consult ath_hal(4) for details.
598 __FreeBSD_version 800054 adds memory barriers to
599 <machine/atomic.h>, new interfaces to ifnet to facilitate
600 multiple hardware transmit queues for cards that support
601 them, and a lock-less ring-buffer implementation to
602 enable drivers to more efficiently manage queueing of
606 A new version of ZFS (version 13) has been merged to -HEAD.
607 This version has zpool attribute "listsnapshots" off by
608 default, which means "zfs list" does not show snapshots,
609 and is the same as Solaris behavior.
612 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
615 The uhci, ohci, ehci and slhci USB Host controller drivers have
616 been put into separate modules. If you load the usb module
617 separately through loader.conf you will need to load the
618 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
619 controller add the following to loader.conf:
625 The ABI used by the PMC toolset has changed. Please keep
626 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
630 atapci kernel module now includes only generic PCI ATA
631 driver. AHCI driver moved to ataahci kernel module.
632 All vendor-specific code moved into separate kernel modules:
633 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
634 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
635 atamarvell, atamicron, atanational, atanetcell, atanvidia,
636 atapromise, ataserverworks, atasiliconimage, atasis, atavia
639 The TTY subsystem of the kernel has been replaced by a new
640 implementation, which provides better scalability and an
641 improved driver model. Most common drivers have been migrated to
642 the new TTY subsystem, while others have not. The following
643 drivers have not yet been ported to the new TTY layer:
646 cy, digi, rc, rp, sio
652 ng_h4, ng_tty, ppp, sl, snp
654 Adding these drivers to your kernel configuration file shall
655 cause compilation to fail.
658 ntpd has been upgraded to 4.2.4p5.
661 OpenSSH has been upgraded to 5.1p1.
663 For many years, FreeBSD's version of OpenSSH preferred DSA
664 over RSA for host and user authentication keys. With this
665 upgrade, we've switched to the vendor's default of RSA over
666 DSA. This may cause upgraded clients to warn about unknown
667 host keys even for previously known hosts. Users should
668 follow the usual procedure for verifying host keys before
669 accepting the RSA key.
671 This can be circumvented by setting the "HostKeyAlgorithms"
672 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
675 Please note that the sequence of keys offered for
676 authentication has been changed as well. You may want to
677 specify IdentityFile in a different order to revert this
681 The sio(4) driver has been removed from the i386 and amd64
682 kernel configuration files. This means uart(4) is now the
683 default serial port driver on those platforms as well.
685 To prevent collisions with the sio(4) driver, the uart(4) driver
686 uses different names for its device nodes. This means the
687 onboard serial port will now most likely be called "ttyu0"
688 instead of "ttyd0". You may need to reconfigure applications to
689 use the new device names.
691 When using the serial port as a boot console, be sure to update
692 /boot/device.hints and /etc/ttys before booting the new kernel.
693 If you forget to do so, you can still manually specify the hints
694 at the loader prompt:
696 set hint.uart.0.at="isa"
697 set hint.uart.0.port="0x3F8"
698 set hint.uart.0.flags="0x10"
699 set hint.uart.0.irq="4"
703 The gpt(8) utility has been removed. Use gpart(8) to partition
707 The version that Linuxulator emulates was changed from 2.4.2
708 to 2.6.16. If you experience any problems with Linux binaries
709 please try to set sysctl compat.linux.osrelease to 2.4.2 and
710 if it fixes the problem contact emulation mailing list.
713 ISDN4BSD (I4B) was removed from the src tree. You may need to
714 update a your kernel configuration and remove relevant entries.
717 I have checked in code to support multiple routing tables.
718 See the man pages setfib(1) and setfib(2).
719 This is a hopefully backwards compatible version,
720 but to make use of it you need to compile your kernel
721 with options ROUTETABLES=2 (or more up to 16).
724 The 802.11 wireless support was redone to enable multi-bss
725 operation on devices that are capable. The underlying device
726 is no longer used directly but instead wlanX devices are
727 cloned with ifconfig. This requires changes to rc.conf files.
729 ifconfig_ath0="WPA DHCP"
732 ifconfig_wlan0="WPA DHCP"
733 see rc.conf(5) for more details. In addition, mergemaster of
734 /etc/rc.d is highly recommended. Simultaneous update of userland
735 and kernel wouldn't hurt either.
737 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
738 modules were merged into the base wlan module. All references
739 to these modules (e.g. in kernel config files) must be removed.
742 psm(4) has gained write(2) support in native operation level.
743 Arbitrary commands can be written to /dev/psm%d and status can
744 be read back from it. Therefore, an application is responsible
745 for status validation and error recovery. It is a no-op in
746 other operation levels.
749 Support for KSE threading has been removed from the kernel. To
750 run legacy applications linked against KSE libmap.conf may
751 be used. The following libmap.conf may be used to ensure
752 compatibility with any prior release:
754 libpthread.so.1 libthr.so.1
755 libpthread.so.2 libthr.so.2
756 libkse.so.3 libthr.so.3
759 The layout of struct vmspace has changed. This affects libkvm
760 and any executables that link against libkvm and use the
761 kvm_getprocs() function. In particular, but not exclusively,
762 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
763 The effects are minimal, but it's advisable to upgrade world
767 The latest em driver no longer has support in it for the
768 82575 adapter, this is now moved to the igb driver. The
769 split was done to make new features that are incompatible
770 with older hardware easier to do.
773 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
774 likewise the kernel option is now GEOM_LINUX_LVM.
777 The default NFS mount mode has changed from UDP to TCP for
778 increased reliability. If you rely on (insecurely) NFS
779 mounting across a firewall you may need to update your
783 Belatedly note the addition of m_collapse for compacting
787 The fts(3) structures have been changed to use adequate
788 integer types for their members and so to be able to cope
789 with huge file trees. The old fts(3) ABI is preserved
790 through symbol versioning in libc, so third-party binaries
791 using fts(3) should still work, although they will not take
792 advantage of the extended types. At the same time, some
793 third-party software might fail to build after this change
794 due to unportable assumptions made in its source code about
795 fts(3) structure members. Such software should be fixed
796 by its vendor or, in the worst case, in the ports tree.
797 FreeBSD_version 800015 marks this change for the unlikely
798 case that a portable fix is impossible.
801 To upgrade to -current after this date, you must be running
802 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
803 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
806 The ADAPTIVE_GIANT kernel option has been retired because its
807 functionality is the default now.
810 The AT keyboard emulation of sunkbd(4) has been turned on
811 by default. In order to make the special symbols of the Sun
812 keyboards driven by sunkbd(4) work under X these now have
813 to be configured the same way as Sun USB keyboards driven
814 by ukbd(4) (which also does AT keyboard emulation), f.e.:
816 Option "XkbLayout" "us"
817 Option "XkbRules" "xorg"
818 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
821 It has been decided that it is desirable to provide ABI
822 backwards compatibility to the FreeBSD 4/5/6 versions of the
823 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
824 broken with the introduction of PCI domain support (see the
825 20070930 entry). Unfortunately, this required the ABI of
826 PCIOCGETCONF to be broken again in order to be able to
827 provide backwards compatibility to the old version of that
828 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
829 again. As for prominent ports this affects neither pciutils
830 nor xorg-server this time, the hal port needs to be rebuilt
834 The misnamed kthread_create() and friends have been renamed
835 to kproc_create() etc. Many of the callers already
837 I will return kthread_create() and friends in a while
838 with implementations that actually create threads, not procs.
839 Renaming corresponds with version 800002.
845 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
846 WITHOUT_LIBTHR are set.
849 The PCI code has been made aware of PCI domains. This means that
850 the location strings as used by pciconf(8) etc are now in the
851 following format: pci<domain>:<bus>:<device>[:<function>]. It
852 also means that consumers of <sys/pciio.h> potentially need to
853 be recompiled; this includes the hal and xorg-server ports.
856 The caching daemon (cached) was renamed to nscd. nscd.conf
857 configuration file should be used instead of cached.conf and
858 nscd_enable, nscd_pidfile and nscd_flags options should be used
859 instead of cached_enable, cached_pidfile and cached_flags in
863 The getfacl(1) utility now prints owning user and group name
864 instead of owning uid and gid in the three line comment header.
865 This is the same behavior as getfacl(1) on Solaris and Linux.
868 The new IPsec code is now compiled in using the IPSEC option. The
869 IPSEC option now requires "device crypto" be defined in your kernel
870 configuration. The FAST_IPSEC kernel option is now deprecated.
873 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
874 note the changed syntax - keep state is now on by default. Also
875 note the fact that ftp-proxy(8) has been changed from bottom up and
876 has been moved from libexec to usr/sbin. Changes in the ALTQ
877 handling also affect users of IPFW's ALTQ capabilities.
880 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
881 only IPsec supported by FreeBSD. The new IPsec stack
882 supports both IPv4 and IPv6. The kernel option will change
883 after the code changes have settled in. For now the kernel
884 option IPSEC is deprecated and FAST_IPSEC is the only option, that
885 will change after some settling time.
888 The wicontrol(8) utility has been removed from the base system. wi(4)
889 cards should be configured using ifconfig(8), see the man page for more
893 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
894 instead of the nve(4) driver. Please update your configuration
898 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
899 database if it is missing or older than the aliases file. If
900 desired, set the new rc.conf option sendmail_rebuild_aliases
901 to "YES" to restore that functionality.
904 The IPv4 multicast socket code has been considerably modified, and
905 moved to the file sys/netinet/in_mcast.c. Initial support for the
906 RFC 3678 Source-Specific Multicast Socket API has been added to
907 the IPv4 network stack.
909 Strict multicast and broadcast reception is now the default for
910 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
911 has now been removed.
913 The RFC 1724 hack for interface selection has been removed; the use
914 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
915 been added to replace it. Consumers such as routed will soon be
916 updated to reflect this.
918 These changes affect users who are running routed(8) or rdisc(8)
919 from the FreeBSD base system on point-to-point or unnumbered
923 The net80211 layer has changed significantly and all wireless
924 drivers that depend on it need to be recompiled. Further these
925 changes require that any program that interacts with the wireless
926 support in the kernel be recompiled; this includes: ifconfig,
927 wpa_supplicant, hostapd, and wlanstats. Users must also, for
928 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
929 if they use modules for wireless support. These modules implement
930 scanning support for station and ap modes, respectively. Failure
931 to load the appropriate module before marking a wireless interface
932 up will result in a message to the console and the device not
936 The pam_nologin(8) module ceases to provide an authentication
937 function and starts providing an account management function.
938 Consequent changes to /etc/pam.d should be brought in using
939 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
940 need manual editing as follows. Locate this line (or similar):
942 auth required pam_nologin.so no_warn
944 and change it according to this example:
946 account required pam_nologin.so no_warn
948 That is, the first word needs to be changed from "auth" to
949 "account". The new line can be moved to the account section
950 within the file for clarity. Not updating pam.conf(5) files
951 will result in nologin(5) ignored by the respective services.
954 The ether_ioctl() function has been synchronized with ioctl(2)
955 and ifnet.if_ioctl. Due to that, the size of one of its arguments
956 has changed on 64-bit architectures. All kernel modules using
957 ether_ioctl() need to be rebuilt on such architectures.
960 Improved INCLUDE_CONFIG_FILE support has been introduced to the
961 config(8) utility. In order to take advantage of this new
962 functionality, you are expected to recompile and install
963 src/usr.sbin/config. If you don't rebuild config(8), and your
964 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
965 build will be broken because of a missing "kernconfstring"
969 Symbol versioning is enabled by default. To disable it, use
970 option WITHOUT_SYMVER. It is not advisable to attempt to
971 disable symbol versioning once it is enabled; your installworld
972 will break because a symbol version-less libc will get installed
973 before the install tools. As a result, the old install tools,
974 which previously had symbol dependencies to FBSD_1.0, will fail
975 because the freshly installed libc will not have them.
977 The default threading library (providing "libpthread") has been
978 changed to libthr. If you wish to have libkse as your default,
979 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
982 The ABI breakage in sendmail(8)'s libmilter has been repaired
983 so it is no longer necessary to recompile mail filters (aka,
984 milters). If you recompiled mail filters after the 20070408
985 note, it is not necessary to recompile them again.
988 The new trunk(4) driver has been renamed to lagg(4) as it better
989 reflects its purpose. ifconfig will need to be recompiled.
992 sendmail(8) has been updated to version 8.14.1. Mail filters
993 (aka, milters) compiled against the libmilter included in the
994 base operating system should be recompiled.
997 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
998 In order to use them one must agree to the respective LICENSE in
999 share/doc/legal and define legal.intel_<name>.license_ack=1 via
1000 loader.conf(5) or kenv(1). Make sure to deinstall the now
1001 deprecated modules from the respective firmware ports.
1004 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
1005 were removed from FreeBSD's libc. These originally came from INRIA
1006 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
1007 deprecated in previous releases.
1008 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
1009 replace it as a more portable (and re-entrant) API.
1012 To support interrupt filtering a modification to the newbus API
1013 has occurred, ABI was broken and __FreeBSD_version was bumped
1014 to 700031. Please make sure that your kernel and modules are in
1015 sync. For more info:
1016 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1019 The IPv6 multicast forwarding code may now be loaded into GENERIC
1020 kernels by loading the ip_mroute.ko module. This is built into the
1021 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1022 set; see src.conf(5) for more information.
1025 The output of netstat -r has changed. Without -n, we now only
1026 print a "network name" without the prefix length if the network
1027 address and mask exactly match a Class A/B/C network, and an entry
1028 exists in the nsswitch "networks" map.
1029 With -n, we print the full unabbreviated CIDR network prefix in
1030 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1031 This change is in preparation for changes such as equal-cost
1032 multipath, and to more generally assist operational deployment
1033 of FreeBSD as a modern IPv4 router.
1036 PIM has been turned on by default in the IPv4 multicast
1037 routing code. The kernel option 'PIM' has now been removed.
1038 PIM is now built by default if option 'MROUTING' is specified.
1039 It may now be loaded into GENERIC kernels by loading the
1040 ip_mroute.ko module.
1043 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1044 has been removed. Its functionality may be achieved by explicitly
1045 configuring gif(4) interfaces and using the 'phyint' keyword in
1047 XORP does not support source-routed IPv4 multicast tunnels nor the
1048 integrated IPIP tunneling, therefore it is not affected by this
1049 change. The __FreeBSD_version macro has been bumped to 700030.
1052 Support for PCI Message Signalled Interrupts has been
1053 re-enabled in the bge driver, only for those chips which are
1054 believed to support it properly. If there are any problems,
1055 MSI can be disabled completely by setting the
1056 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1060 Support for PCI Message Signalled Interrupts has been
1061 disabled again in the bge driver. Many revisions of the
1062 hardware fail to support it properly. Support can be
1063 re-enabled by removing the #define of BGE_DISABLE_MSI in
1064 "src/sys/dev/bge/if_bge.c".
1067 Support for PCI Message Signalled Interrupts has been added
1068 to the bge driver. If there are any problems, MSI can be
1069 disabled completely by setting the 'hw.pci.enable_msi' and
1070 'hw.pci.enable_msix' tunables to 0 in the loader.
1073 The removal of several facets of the experimental Threading
1074 system from the kernel means that the proc and thread structures
1075 have changed quite a bit. I suggest all kernel modules that might
1076 reference these structures be recompiled.. Especially the
1080 Sound infrastructure has been updated with various fixes and
1081 improvements. Most of the changes are pretty much transparent,
1082 with exceptions of followings:
1083 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1084 moved to their own dev sysctl nodes, for example:
1085 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1086 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1087 own chardev in the form of "dsp%d.<function>%d", where <function>
1088 is p = playback, r = record and v = virtual, respectively. Users
1089 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1090 This does not affect those who are using "/dev/dsp".
1093 geom(4)'s gmirror(8) class metadata structure has been
1094 rev'd from v3 to v4. If you update across this point and
1095 your metadata is converted for you, you will not be easily
1096 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1097 kernel module will be unable to read the v4 metadata. You
1098 can resolve this by doing from the loader(8) prompt:
1100 set vfs.root.mountfrom="ufs:/dev/XXX"
1102 where XXX is the root slice of one of the disks that composed
1103 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1104 the array the same way you built it originally.
1107 The following binaries have been disconnected from the build:
1108 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1109 and mount_std. The functionality of these programs has been
1110 moved into the mount program. For example, to mount a devfs
1111 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1112 This does not affect entries in /etc/fstab, since entries in
1113 /etc/fstab are always processed with "mount -t fstype".
1116 Support for PCI Message Signalled Interrupts on i386 and amd64
1117 has been added to the kernel and various drivers will soon be
1118 updated to use MSI when it is available. If there are any problems,
1119 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1120 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1123 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1124 The lockmgr object layout has been changed as a result of having
1125 a lock_object embedded in it. As a consequence all file system
1126 kernel modules must be re-compiled. The mutex profiling man page
1127 has not yet been updated to reflect this change.
1130 KSE in the kernel has now been made optional and turned on by
1131 default. Use 'nooption KSE' in your kernel config to turn it
1132 off. All kernel modules *must* be recompiled after this change.
1133 There-after, modules from a KSE kernel should be compatible with
1134 modules from a NOKSE kernel due to the temporary padding fields
1135 added to 'struct proc'.
1138 mrouted and its utilities have been removed from the base system.
1141 Some ioctl(2) command codes have changed. Full backward ABI
1142 compatibility is provided if the "options COMPAT_FREEBSD6" is
1143 present in the kernel configuration file. Make sure to add
1144 this option to your kernel config file, or recompile X.Org
1145 and the rest of ports; otherwise they may refuse to work.
1148 tcpslice has been removed from the base system.
1151 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1152 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1153 systat needs to be rebuilt.
1156 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1159 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1160 for IPFIREWALL_FORWARD is now as it was before when it was first
1161 committed and for years after. The behaviour is now ON.
1164 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1165 Now it can decrypt files created from different architectures.
1166 Unfortunately, it is no longer able to decrypt a cipher text
1167 generated with an older version on 64 bit architectures.
1168 If you have such a file, you need old utility to decrypt it.
1171 The interface version of the i4b kernel part has changed. So
1172 after updating the kernel sources and compiling a new kernel,
1173 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1174 be rebuilt, and vice versa.
1177 The XBOX kernel now defaults to the nfe(4) driver instead of
1178 the nve(4) driver. Please update your configuration
1182 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1183 PCnet family of NICs has been removed. The new le(4) driver serves
1184 as an equivalent but cross-platform replacement with the pcn(4)
1185 driver still providing performance-optimized support for the subset
1186 of AMD Am79C971 PCnet-FAST and greater chips as before.
1189 The machdep.* sysctls and the adjkerntz utility have been
1190 modified a bit. The new adjkerntz utility uses the new
1191 sysctl names and sysctlbyname() calls, so it may be impossible
1192 to run an old /sbin/adjkerntz utility in single-user mode
1193 with a new kernel. Replace the `adjkerntz -i' step before
1194 `make installworld' with:
1196 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1198 and proceed as usual with the rest of the installworld-stage
1199 steps. Otherwise, you risk installing binaries with their
1200 timestamp set several hours in the future, especially if
1201 you are running with local time set to GMT+X hours.
1204 The ip6fw utility has been removed. The behavior provided by
1205 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1206 have been updated to deal with it. There are some rules that
1207 might not migrate cleanly. Use rc.firewall6 as a template to
1211 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1212 attachments have been removed. Make sure to configure scc(4)
1213 on sparc64. Note also that by default puc(4) will use uart(4)
1214 and not sio(4) for serial ports because interrupt handling has
1215 been optimized for multi-port serial cards and only uart(4)
1216 implements the interface to support it.
1219 The scc(4) driver replaces puc(4) for Serial Communications
1220 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1221 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1222 configuration to make sure that the serial ports remain
1226 Most world/kernel related NO_* build options changed names.
1227 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1228 after FreeBSD ports) and should be set in /etc/src.conf
1229 (the src.conf(5) manpage is provided). Full backwards
1230 compatibility is maintained for the time being though it's
1231 highly recommended to start moving old options out of the
1232 system-wide /etc/make.conf file into the new /etc/src.conf
1233 while also properly renaming them. More conversions will
1234 likely follow. Posting to current@:
1236 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1239 The NETSMBCRYPTO kernel option has been retired because its
1240 functionality is always included in NETSMB and smbfs.ko now.
1243 The TDFX_LINUX kernel option was retired and replaced by the
1244 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1245 kernel module. Loading it alone should suffice to get 3dfx support
1246 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1250 The 'audit' group was added to support the new auditing functionality
1251 in the base system. Be sure to follow the directions for updating,
1252 including the requirement to run mergemaster -p.
1255 The kernel ABI to file system modules was changed on i386.
1256 Please make sure that your kernel and modules are in sync.
1259 This actually occured some time ago, but installing the kernel
1260 now also installs a bunch of symbol files for the kernel modules.
1261 This increases the size of /boot/kernel to about 67Mbytes. You
1262 will need twice this if you will eventually back this up to kernel.old
1263 on your next install.
1264 If you have a shortage of room in your root partition, you should add
1265 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1266 to your /etc/make.conf.
1269 libc's malloc implementation has been replaced. This change has the
1270 potential to uncover application bugs that previously went unnoticed.
1271 See the malloc(3) manual page for more details.
1274 The generic netgraph(4) cookie has been changed. If you upgrade
1275 kernel passing this point, you also need to upgrade userland
1276 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1279 si(4)'s device files now contain the unit number.
1280 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1283 The kernel ABI was mostly destroyed due to a change in the size
1284 of struct lock_object which is nested in other structures such
1285 as mutexes which are nested in all sorts of other structures.
1286 Make sure your kernel and modules are in sync.
1289 The page coloring algorithm in the VM subsystem was converted
1290 from tuning with kernel options to autotuning. Please remove
1291 any PQ_* option except PQ_NOOPT from your kernel config.
1294 The net80211-related tools in the tools/tools/ath directory
1295 have been moved to tools/tools/net80211 and renamed with a
1296 "wlan" prefix. Scripts that use them should be adjusted
1300 Scripts in the local_startup directories (as defined in
1301 /etc/defaults/rc.conf) that have the new rc.d semantics will
1302 now be run as part of the base system rcorder. If there are
1303 errors or problems with one of these local scripts, it could
1304 cause boot problems. If you encounter such problems, boot in
1305 single user mode, remove that script from the */rc.d directory.
1306 Please report the problem to the port's maintainer, and the
1307 freebsd-ports@freebsd.org mailing list.
1310 The nodev mount option was deprecated in RELENG_6 (where it
1311 was a no-op), and is now unsupported. If you have nodev or dev listed
1312 in /etc/fstab, remove it, otherwise it will result in a mount error.
1315 ABI between ipfw(4) and ipfw(8) has been changed. You need
1316 to rebuild ipfw(8) when rebuilding kernel.
1319 rp(4)'s device files now contain the unit number.
1320 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1323 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1324 Its /etc/rc.conf.d configuration file has been `ppp' from
1325 the beginning, and hence there is no need to touch it.
1328 Now most modules get their build-time options from the kernel
1329 configuration file. A few modules still have fixed options
1330 due to their non-conformant implementation, but they will be
1331 corrected eventually. You may need to review the options of
1332 the modules in use, explicitly specify the non-default options
1333 in the kernel configuration file, and rebuild the kernel and
1337 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1338 to turn polling(4) on your interfaces.
1341 The old bridge(4) implementation was retired. The new
1342 if_bridge(4) serves as a full functional replacement.
1345 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1346 to conform to POSIX-2001. This change broke an ABI
1347 compatibility on 64 bit architecture. You have to recompile
1348 userland programs that use getaddrinfo(3) on 64 bit
1352 RELENG_6 branched here.
1355 The pccard_ifconfig rc.conf variable has been removed and a new
1356 variable, ifconfig_DEFAULT has been introduced. Unlike
1357 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1358 do not have ifconfig_ifn entries rather than just those in
1359 removable_interfaces.
1362 Some previous versions of PAM have permitted the use of
1363 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1364 to third party PAM modules in /usr/local/lib. A change has been
1365 made to require the use of absolute paths in order to avoid
1366 ambiguity and dependence on library path configuration, which may
1367 affect existing configurations.
1370 Major changes to network interface API. All drivers must be
1371 recompiled. Drivers not in the base system will need to be
1372 updated to the new APIs.
1375 Changes were made to kinfo_proc in sys/user.h. Please recompile
1376 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1377 will not behave correctly.
1379 The API and ABI for hwpmc(4) have changed with the addition
1380 of sampling support. Please recompile lib/libpmc(3) and
1381 usr.sbin/{pmcstat,pmccontrol}.
1384 The OpenBSD dhclient was imported in place of the ISC dhclient
1385 and the network interface configuration scripts were updated
1386 accordingly. If you use DHCP to configure your interfaces, you
1387 must now run devd. Also, DNS updating was lost so you will need
1388 to find a workaround if you use this feature.
1390 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1391 sure to run mergemaster -p (like you are supposed to do every time
1395 if_bridge was added to the tree. This has changed struct ifnet.
1396 Please recompile userland and all network related modules.
1399 The n_net of a struct netent was changed to an uint32_t, and
1400 1st argument of getnetbyaddr() was changed to an uint32_t, to
1401 conform to POSIX-2001. These changes broke an ABI
1402 compatibility on 64 bit architecture. With these changes,
1403 shlib major of libpcap was bumped. You have to recompile
1404 userland programs that use getnetbyaddr(3), getnetbyname(3),
1405 getnetent(3) and/or libpcap on 64 bit architecture.
1408 Kernel parsing of extra options on '#!' first lines of shell
1409 scripts has changed. Lines with multiple options likely will
1410 fail after this date. For full details, please see
1411 http://people.freebsd.org/~gad/Updating-20050528.txt
1414 The packet filter (pf) code has been updated to OpenBSD 3.7
1415 Please note the changed anchor syntax and the fact that
1416 authpf(8) now needs a mounted fdescfs(5) to function.
1419 The NO_MIXED_MODE kernel option has been removed from the i386
1420 amd64 platforms as its use has been superceded by the new local
1421 APIC timer code. Any kernel config files containing this option
1425 The on-disk format of LC_CTYPE files was changed to be machine
1426 independent. Please make sure NOT to use NO_CLEAN buildworld
1427 when crossing this point. Crossing this point also requires
1428 recompile or reinstall of all locale depended packages.
1431 The ifi_epoch member of struct if_data has been changed to
1432 contain the uptime at which the interface was created or the
1433 statistics zeroed rather then the wall clock time because
1434 wallclock time may go backwards. This should have no impact
1435 unless an snmp implementation is using this value (I know of
1436 none at this point.)
1439 The acpi_perf and acpi_throttle drivers are now part of the
1440 acpi(4) main module. They are no longer built separately.
1443 The layout of struct image_params has changed. You have to
1444 recompile all compatibility modules (linux, svr4, etc) for use
1445 with the new kernel.
1448 The p4tcc driver has been merged into cpufreq(4). This makes
1449 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1450 compile in "device cpufreq" to restore this functionality.
1453 The responsibility of recomputing the file system summary of
1454 a SoftUpdates-enabled dirty volume has been transferred to the
1455 background fsck. A rebuild of fsck(8) utility is recommended
1456 if you have updated the kernel.
1458 To get the old behavior (recompute file system summary at mount
1459 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1460 mounting the new volume.
1463 The cpufreq import is complete. As part of this, the sysctls for
1464 acpi(4) throttling have been removed. The power_profile script
1465 has been updated, so you can use performance/economy_cpu_freq in
1466 rc.conf(5) to set AC on/offline cpu frequencies.
1469 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1470 requires recompiling libnetgraph and userland netgraph utilities.
1473 Support for abbreviated forms of a number of ipfw options is
1474 now deprecated. Warnings are printed to stderr indicating the
1475 correct full form when a match occurs. Some abbreviations may
1476 be supported at a later date based on user feedback. To be
1477 considered for support, abbreviations must be in use prior to
1478 this commit and unlikely to be confused with current key words.
1481 By a popular demand, a lot of NOFOO options were renamed
1482 to NO_FOO (see bsd.compat.mk for a full list). The old
1483 spellings are still supported, but will cause annoying
1484 warnings on stderr. Make sure you upgrade properly (see
1485 the COMMON ITEMS: section later in this file).
1488 Auto-loading of ancillary wlan modules such as wlan_wep has
1489 been temporarily disabled; you need to statically configure
1490 the modules you need into your kernel or explicitly load them
1491 prior to use. Specifically, if you intend to use WEP encryption
1492 with an 802.11 device load/configure wlan_wep; if you want to
1493 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1494 and wlan_xauth as required.
1497 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1498 (``enable lqr''), older versions would revert to LCP ECHO mode on
1499 negotiation failure. Now, ``enable echo'' is required for this
1500 behaviour. The ppp version number has been bumped to 3.4.2 to
1504 The wlan support has been updated to split the crypto support
1505 into separate modules. For static WEP you must configure the
1506 wlan_wep module in your system or build and install the module
1507 in place where it can be loaded (the kernel will auto-load
1508 the module when a wep key is configured).
1511 The ath driver has been updated to split the tx rate control
1512 algorithm into a separate module. You need to include either
1513 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1516 Support for systems with an 80386 CPU has been removed. Please
1517 use FreeBSD 5.x or earlier on systems with an 80386.
1520 We have had a hack which would mount the root filesystem
1521 R/W if the device were named 'md*'. As part of the vnode
1522 work I'm doing I have had to remove this hack. People
1523 building systems which use preloaded MD root filesystems
1524 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1525 their /etc/rc scripts.
1528 FreeBSD 5.3 shipped here.
1531 The size of struct tcpcb has changed again due to the removal
1532 of RFC1644 T/TCP. You have to recompile userland programs that
1533 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1536 The size of struct tcpcb has changed. You have to recompile
1537 userland programs that read kmem for tcp sockets directly
1538 (netstat, sockstat, etc.)
1541 RELENG_5 branched here. For older entries, please see updating
1542 in the RELENG_5 branch.
1548 Avoid using make -j when upgrading. From time to time in the
1549 past there have been problems using -j with buildworld and/or
1550 installworld. This is especially true when upgrading between
1551 "distant" versions (eg one that cross a major release boundary
1552 or several minor releases, or when several months have passed
1553 on the -current branch).
1555 Sometimes, obscure build problems are the result of environment
1556 poisoning. This can happen because the make utility reads its
1557 environment when searching for values for global variables.
1558 To run your build attempts in an "environmental clean room",
1559 prefix all make commands with 'env -i '. See the env(1) manual
1560 page for more details.
1562 When upgrading from one major version to another it is generally
1563 best to upgrade to the latest code in the currently installed branch
1564 first, then do an upgrade to the new branch. This is the best-tested
1565 upgrade path, and has the highest probability of being successful.
1566 Please try this approach before reporting problems with a major
1571 If you are updating from a prior version of FreeBSD (even one just
1572 a few days old), you should follow this procedure. It is the most
1573 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1575 make kernel-toolchain
1576 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1577 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1579 To test a kernel once
1580 ---------------------
1581 If you just want to boot a kernel once (because you are not sure
1582 if it works, or if you want to boot a known bad kernel to provide
1583 debugging information) run
1584 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1585 nextboot -k testkernel
1587 To just build a kernel when you know that it won't mess you up
1588 --------------------------------------------------------------
1589 This assumes you are already running a 5.X system. Replace
1590 ${arch} with the architecture of your machine (e.g. "i386",
1591 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1593 cd src/sys/${arch}/conf
1594 config KERNEL_NAME_HERE
1595 cd ../compile/KERNEL_NAME_HERE
1600 If this fails, go to the "To build a kernel" section.
1602 To rebuild everything and install it on the current system.
1603 -----------------------------------------------------------
1604 # Note: sometimes if you are running current you gotta do more than
1605 # is listed here if you are upgrading from a really old current.
1607 <make sure you have good level 0 dumps>
1609 make kernel KERNCONF=YOUR_KERNEL_HERE
1611 <reboot in single user> [3]
1619 To cross-install current onto a separate partition
1620 --------------------------------------------------
1621 # In this approach we use a separate partition to hold
1622 # current's root, 'usr', and 'var' directories. A partition
1623 # holding "/", "/usr" and "/var" should be about 2GB in
1626 <make sure you have good level 0 dumps>
1629 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1630 <maybe newfs current's root partition>
1631 <mount current's root partition on directory ${CURRENT_ROOT}>
1632 make installworld DESTDIR=${CURRENT_ROOT}
1633 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1634 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1635 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1636 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1637 <reboot into current>
1638 <do a "native" rebuild/install as described in the previous section>
1639 <maybe install compatibility libraries from ports/misc/compat*>
1643 To upgrade in-place from 5.x-stable to current
1644 ----------------------------------------------
1645 <make sure you have good level 0 dumps>
1647 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1649 <reboot in single user> [3]
1656 Make sure that you've read the UPDATING file to understand the
1657 tweaks to various things you need. At this point in the life
1658 cycle of current, things change often and you are on your own
1659 to cope. The defaults can also change, so please read ALL of
1660 the UPDATING entries.
1662 Also, if you are tracking -current, you must be subscribed to
1663 freebsd-current@freebsd.org. Make sure that before you update
1664 your sources that you have read and understood all the recent
1665 messages there. If in doubt, please track -stable which has
1666 much fewer pitfalls.
1668 [1] If you have third party modules, such as vmware, you
1669 should disable them at this point so they don't crash your
1672 [3] From the bootblocks, boot -s, and then do
1677 adjkerntz -i # if CMOS is wall time
1678 Also, when doing a major release upgrade, it is required that
1679 you boot into single user mode to do the installworld.
1681 [4] Note: This step is non-optional. Failure to do this step
1682 can result in a significant reduction in the functionality of the
1683 system. Attempting to do it by hand is not recommended and those
1684 that pursue this avenue should read this file carefully, as well
1685 as the archives of freebsd-current and freebsd-hackers mailing lists
1686 for potential gotchas.
1688 [5] Usually this step is a noop. However, from time to time
1689 you may need to do this if you get unknown user in the following
1690 step. It never hurts to do it all the time. You may need to
1691 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1692 install) after the buildworld before this step if you last updated
1693 from current before 20020224 or from -stable before 20020408.
1695 [8] In order to have a kernel that can run the 4.x binaries
1696 needed to do an installworld, you must include the COMPAT_FREEBSD4
1697 option in your kernel. Failure to do so may leave you with a system
1698 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1699 is required to run the 5.x binaries on more recent kernels.
1701 Make sure that you merge any new devices from GENERIC since the
1702 last time you updated your kernel config file.
1704 [9] When checking out sources, you must include the -P flag to have
1705 cvs prune empty directories.
1707 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1708 "?=" instead of the "=" assignment operator, so that buildworld can
1709 override the CPUTYPE if it needs to.
1711 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1712 not on the command line, or in /etc/make.conf. buildworld will
1713 warn if it is improperly defined.
1716 This file contains a list, in reverse chronological order, of major
1717 breakages in tracking -current. Not all things will be listed here,
1718 and it only starts on October 16, 2004. Updating files can found in
1719 previous releases if your system is older than this.
1721 Copyright information:
1723 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1725 Redistribution, publication, translation and use, with or without
1726 modification, in full or in part, in any form or format of this
1727 document are permitted without further permission from the author.
1729 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1730 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1731 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1732 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1733 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1734 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1735 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1736 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1737 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1738 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1739 POSSIBILITY OF SUCH DAMAGE.
1741 If you find this document useful, and you want to, you may buy the
1744 Contact Warner Losh if you have any questions about your use of