UPDATING revision 153044
1210284SjmallettUpdating Information for FreeBSD current users 2215990Sjmallett 3215990SjmallettThis file is maintained and copyrighted by M. Warner Losh 4210284Sjmallett<imp@village.org>. See end of file for further details. For commonly 5210284Sjmallettdone items, please see the COMMON ITEMS: section later in the file. 6215990Sjmallett 7215990SjmallettItems affecting the ports and packages system can be found in 8215990Sjmallett/usr/ports/UPDATING. Please read that file before running 9210284Sjmallettportupgrade. 10215990Sjmallett 11215990SjmallettNOTE TO PEOPLE WHO THINK THAT FreeBSD 7.x IS SLOW: 12210284Sjmallett FreeBSD 7.x has many debugging features turned on, in 13215990Sjmallett both the kernel and userland. These features attempt to detect 14215990Sjmallett incorrect use of system primitives, and encourage loud failure 15215990Sjmallett through extra sanity checking and fail stop semantics. They 16215990Sjmallett also substantially impact system performance. If you want to 17215990Sjmallett do performance measurement, benchmarking, and optimization, 18215990Sjmallett you'll want to turn them off. This includes various WITNESS- 19215990Sjmallett related kernel options, INVARIANTS, malloc debugging flags 20215990Sjmallett in userland, and various verbose features in the kernel. Many 21215990Sjmallett developers choose to disable these features on build machines 22215990Sjmallett to maximize performance. 23215990Sjmallett 24215990Sjmallett20051202: 25215990Sjmallett Scripts in the local_startup directories (as defined in 26215990Sjmallett /etc/defaults/rc.conf) that have the new rc.d semantics will 27215990Sjmallett now be run as part of the base system rcorder. If there are 28215990Sjmallett errors or problems with one of these local scripts, it could 29215990Sjmallett cause boot problems. If you encounter such problems, boot in 30215990Sjmallett single user mode, remove that script from the */rc.d directory. 31215990Sjmallett Please report the problem to the port's maintainer, and the 32215990Sjmallett freebsd-ports@freebsd.org mailing list. 33215990Sjmallett 34215990Sjmallett20051129: 35215990Sjmallett The nodev mount option was deprecated in RELENG_6 (where it 36215990Sjmallett was a no-op), and is now unsupported. If you have nodev or dev listed 37215990Sjmallett in /etc/fstab, remove it, otherwise it will result in a mount error. 38210284Sjmallett 39210284Sjmallett20051129: 40210284Sjmallett ABI between ipfw(4) and ipfw(8) has been changed. You need 41210284Sjmallett to rebuild ipfw(8) when rebuilding kernel. 42210284Sjmallett 43210284Sjmallett20051029: 44210284Sjmallett /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp. 45215990Sjmallett Its /etc/rc.conf.d configuration file has been `ppp' from 46210284Sjmallett the beginning, and hence there is no need to touch it. 47210284Sjmallett 48210284Sjmallett20051001: 49210284Sjmallett kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8) 50210284Sjmallett to turn polling(4) on your interfaces. 51210284Sjmallett 52210284Sjmallett20050927: 53210284Sjmallett The old bridge(4) implementation was retired. The new 54215990Sjmallett if_bridge(4) serves as a full functional replacement. 55210284Sjmallett 56210284Sjmallett20050722: 57210284Sjmallett The ai_addrlen of a struct addrinfo was changed to a socklen_t 58210284Sjmallett to conform to POSIX-2001. This change broke an ABI 59210284Sjmallett compatibility on 64 bit architecture. You have to recompile 60210284Sjmallett userland programs that use getaddrinfo(3) on 64 bit 61210284Sjmallett architecture. 62210284Sjmallett 63210284Sjmallett20050711: 64210284Sjmallett RELENG_6 branched here. 65210284Sjmallett 66210284Sjmallett20050629: 67210284Sjmallett The pccard_ifconfig rc.conf variable has been removed and a new 68210284Sjmallett variable, ifconfig_DEFAULT has been introduced. Unlike 69210284Sjmallett pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that 70210284Sjmallett do not have ifconfig_ifn entries rather than just those in 71210284Sjmallett removable_interfaces. 72210284Sjmallett 73210284Sjmallett20050616: 74210284Sjmallett Some previous versions of PAM have permitted the use of 75210284Sjmallett non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring 76210284Sjmallett to third party PAM modules in /usr/local/lib. A change has been 77210284Sjmallett made to require the use of absolute paths in order to avoid 78210284Sjmallett ambiguity and dependence on library path configuration, which may 79210284Sjmallett affect existing configurations. 80210284Sjmallett 81210284Sjmallett20050610: 82210284Sjmallett Major changes to network interface API. All drivers must be 83210284Sjmallett recompiled. Drivers not in the base system will need to be 84210284Sjmallett updated to the new APIs. 85210284Sjmallett 86210284Sjmallett20050609: 87210284Sjmallett Changes were made to kinfo_proc in sys/user.h. Please recompile 88210284Sjmallett userland, or commands like `fstat', `pkill', `ps', `top' and `w' 89210284Sjmallett will not behave correctly. 90210284Sjmallett 91210284Sjmallett The API and ABI for hwpmc(4) have changed with the addition 92210284Sjmallett of sampling support. Please recompile lib/libpmc(3) and 93210284Sjmallett usr.sbin/{pmcstat,pmccontrol}. 94210284Sjmallett 95210284Sjmallett20050606: 96210284Sjmallett The OpenBSD dhclient was imported in place of the ISC dhclient 97210284Sjmallett and the network interface configuration scripts were updated 98210284Sjmallett accordingly. If you use DHCP to configure your interfaces, you 99210284Sjmallett must now run devd. Also, DNS updating was lost so you will need 100210284Sjmallett to find a workaround if you use this feature. 101210284Sjmallett 102210284Sjmallett20050605: 103210284Sjmallett if_bridge was added to the tree. This has changed struct ifnet. 104210284Sjmallett Please recompile userland and all network related modules. 105210284Sjmallett 106210284Sjmallett20050603: 107210284Sjmallett The n_net of a struct netent was changed to an uint32_t, and 108210284Sjmallett 1st argument of getnetbyaddr() was changed to an uint32_t, to 109210284Sjmallett conform to POSIX-2001. These changes broke an ABI 110210284Sjmallett compatibility on 64 bit architecture. With these changes, 111210284Sjmallett shlib major of libpcap was bumped. You have to recompile 112210284Sjmallett userland programs that use getnetbyaddr(3), getnetbyname(3), 113210284Sjmallett getnetent(3) and/or libpcap on 64 bit architecture. 114210284Sjmallett 115210284Sjmallett20050528: 116210284Sjmallett Kernel parsing of extra options on '#!' first lines of shell 117210284Sjmallett scripts has changed. Lines with multiple options likely will 118210284Sjmallett fail after this date. For full details, please see 119210284Sjmallett http://people.freebsd.org/~gad/Updating-20050528.txt 120210284Sjmallett 121210284Sjmallett20050503: 122210284Sjmallett The packet filter (pf) code has been updated to OpenBSD 3.7 123210284Sjmallett Please note the changed anchor syntax and the fact that 124210284Sjmallett authpf(8) now needs a mounted fdescfs(5) to function. 125210284Sjmallett 126210284Sjmallett20050415: 127210284Sjmallett The NO_MIXED_MODE kernel option has been removed from the i386 128210284Sjmallett amd64 platforms as its use has been superceded by the new local 129210284Sjmallett APIC timer code. Any kernel config files containing this option 130210284Sjmallett should be updated. 131210284Sjmallett 132210284Sjmallett20050227: 133210284Sjmallett The on-disk format of LC_CTYPE files was changed to be machine 134210284Sjmallett independent. Please make sure NOT to use NO_CLEAN buildworld 135 when crossing this point. 136 13720050225: 138 The ifi_epoch member of struct if_data has been changed to 139 contain the uptime at which the interface was created or the 140 statistics zeroed rather then the wall clock time because 141 wallclock time may go backwards. This should have no impact 142 unless an snmp implementation is using this value (I know of 143 none at this point.) 144 14520050224: 146 The acpi_perf and acpi_throttle drivers are now part of the 147 acpi(4) main module. They are no longer built separately. 148 14920050223: 150 The layout of struct image_params has changed. You have to 151 recompile all compatibility modules (linux, svr4, etc) for use 152 with the new kernel. 153 15420050223: 155 The p4tcc driver has been merged into cpufreq(4). This makes 156 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or 157 compile in "device cpufreq" to restore this functionality. 158 15920050220: 160 The responsibility of recomputing the file system summary of 161 a SoftUpdates-enabled dirty volume has been transferred to the 162 background fsck. A rebuild of fsck(8) utility is recommended 163 if you have updated the kernel. 164 165 To get the old behavior (recompute file system summary at mount 166 time), you can set vfs.ffs.compute_summary_at_mount=1 before 167 mounting the new volume. 168 16920050206: 170 The cpufreq import is complete. As part of this, the sysctls for 171 acpi(4) throttling have been removed. The power_profile script 172 has been updated, so you can use performance/economy_cpu_freq in 173 rc.conf(5) to set AC on/offline cpu frequencies. 174 17520050206: 176 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko) 177 requires recompiling libnetgraph and userland netgraph utilities. 178 17920050114: 180 Support for abbreviated forms of a number of ipfw options is 181 now deprecated. Warnings are printed to stderr indicating the 182 correct full form when a match occurs. Some abbreviations may 183 be supported at a later date based on user feedback. To be 184 considered for support, abbreviations must be in use prior to 185 this commit and unlikely to be confused with current key words. 186 18720041221: 188 By a popular demand, a lot of NOFOO options were renamed 189 to NO_FOO (see bsd.compat.mk for a full list). The old 190 spellings are still supported, but will cause annoying 191 warnings on stderr. Make sure you upgrade properly (see 192 the COMMON ITEMS: section later in this file). 193 19420041219: 195 Auto-loading of ancillary wlan modules such as wlan_wep has 196 been temporarily disabled; you need to statically configure 197 the modules you need into your kernel or explicitly load them 198 prior to use. Specifically, if you intend to use WEP encryption 199 with an 802.11 device load/configure wlan_wep; if you want to 200 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp, 201 and wlan_xauth as required. 202 20320041213: 204 The behaviour of ppp(8) has changed slightly. If lqr is enabled 205 (``enable lqr''), older versions would revert to LCP ECHO mode on 206 negotiation failure. Now, ``enable echo'' is required for this 207 behaviour. The ppp version number has been bumped to 3.4.2 to 208 reflect the change. 209 21020041201: 211 The wlan support has been updated to split the crypto support 212 into separate modules. For static WEP you must configure the 213 wlan_wep module in your system or build and install the module 214 in place where it can be loaded (the kernel will auto-load 215 the module when a wep key is configured). 216 21720041201: 218 The ath driver has been updated to split the tx rate control 219 algorithm into a separate module. You need to include either 220 ath_rate_onoe or ath_rate_amrr when configuring the kernel. 221 22220041116: 223 Support for systems with an 80386 CPU has been removed. Please 224 use FreeBSD 5.x or earlier on systems with an 80386. 225 22620041110: 227 We have had a hack which would mount the root filesystem 228 R/W if the device were named 'md*'. As part of the vnode 229 work I'm doing I have had to remove this hack. People 230 building systems which use preloaded MD root filesystems 231 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in 232 their /etc/rc scripts. 233 23420041104: 235 FreeBSD 5.3 shipped here. 236 23720041102: 238 The size of struct tcpcb has changed again due to the removal 239 of RFC1644 T/TCP. You have to recompile userland programs that 240 read kmem for tcp sockets directly (netstat, sockstat, etc.) 241 24220041022: 243 The size of struct tcpcb has changed. You have to recompile 244 userland programs that read kmem for tcp sockets directly 245 (netstat, sockstat, etc.) 246 24720041016: 248 RELENG_5 branched here. For older entries, please see updating 249 in the RELENG_5 branch. 250 251COMMON ITEMS: 252 253 General Notes 254 ------------- 255 Avoid using make -j when upgrading. From time to time in the 256 past there have been problems using -j with buildworld and/or 257 installworld. This is especially true when upgrading between 258 "distant" versions (eg one that cross a major release boundary 259 or several minor releases, or when several months have passed 260 on the -current branch). 261 262 Sometimes, obscure build problems are the result of environment 263 poisoning. This can happen because the make utility reads its 264 environment when searching for values for global variables. 265 To run your build attempts in an "environmental clean room", 266 prefix all make commands with 'env -i '. See the env(1) manual 267 page for more details. 268 269 To build a kernel 270 ----------------- 271 If you are updating from a prior version of FreeBSD (even one just 272 a few days old), you should follow this procedure. It is the most 273 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 274 275 make kernel-toolchain 276 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 277 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 278 279 To test a kernel once 280 --------------------- 281 If you just want to boot a kernel once (because you are not sure 282 if it works, or if you want to boot a known bad kernel to provide 283 debugging information) run 284 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 285 nextboot -k testkernel 286 287 To just build a kernel when you know that it won't mess you up 288 -------------------------------------------------------------- 289 This assumes you are already running a 5.X system. Replace 290 ${arch} with the architecture of your machine (e.g. "i386", 291 "alpha", "amd64", "ia64", "pc98", "sparc64", etc). 292 293 cd src/sys/${arch}/conf 294 config KERNEL_NAME_HERE 295 cd ../compile/KERNEL_NAME_HERE 296 make depend 297 make 298 make install 299 300 If this fails, go to the "To build a kernel" section. 301 302 To rebuild everything and install it on the current system. 303 ----------------------------------------------------------- 304 # Note: sometimes if you are running current you gotta do more than 305 # is listed here if you are upgrading from a really old current. 306 307 <make sure you have good level 0 dumps> 308 make buildworld 309 make kernel KERNCONF=YOUR_KERNEL_HERE 310 [1] 311 <reboot in single user> [3] 312 mergemaster -p [5] 313 make installworld 314 make delete-old 315 mergemaster [4] 316 <reboot> 317 318 319 To cross-install current onto a separate partition 320 -------------------------------------------------- 321 # In this approach we use a separate partition to hold 322 # current's root, 'usr', and 'var' directories. A partition 323 # holding "/", "/usr" and "/var" should be about 2GB in 324 # size. 325 326 <make sure you have good level 0 dumps> 327 <boot into -stable> 328 make buildworld 329 make buildkernel KERNCONF=YOUR_KERNEL_HERE 330 <maybe newfs current's root partition> 331 <mount current's root partition on directory ${CURRENT_ROOT}> 332 make installworld DESTDIR=${CURRENT_ROOT} 333 cd src/etc; make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 334 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 335 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 336 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 337 <reboot into current> 338 <do a "native" rebuild/install as described in the previous section> 339 <maybe install compatibility libraries from src/lib/compat> 340 <reboot> 341 342 343 To upgrade in-place from 5.x-stable to current 344 ---------------------------------------------- 345 <make sure you have good level 0 dumps> 346 make buildworld [9] 347 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 348 [1] 349 <reboot in single user> [3] 350 mergemaster -p [5] 351 make installworld 352 make delete-old 353 mergemaster -i [4] 354 <reboot> 355 356 Make sure that you've read the UPDATING file to understand the 357 tweaks to various things you need. At this point in the life 358 cycle of current, things change often and you are on your own 359 to cope. The defaults can also change, so please read ALL of 360 the UPDATING entries. 361 362 Also, if you are tracking -current, you must be subscribed to 363 freebsd-current@freebsd.org. Make sure that before you update 364 your sources that you have read and understood all the recent 365 messages there. If in doubt, please track -stable which has 366 much fewer pitfalls. 367 368 [1] If you have third party modules, such as vmware, you 369 should disable them at this point so they don't crash your 370 system on reboot. 371 372 [3] From the bootblocks, boot -s, and then do 373 fsck -p 374 mount -u / 375 mount -a 376 cd src 377 adjkerntz -i # if CMOS is wall time 378 Also, when doing a major release upgrade, it is required that 379 you boot into single user mode to do the installworld. 380 381 [4] Note: This step is non-optional. Failure to do this step 382 can result in a significant reduction in the functionality of the 383 system. Attempting to do it by hand is not recommended and those 384 that pursue this avenue should read this file carefully, as well 385 as the archives of freebsd-current and freebsd-hackers mailing lists 386 for potential gotchas. 387 388 [5] Usually this step is a noop. However, from time to time 389 you may need to do this if you get unknown user in the following 390 step. It never hurts to do it all the time. You may need to 391 install a new mergemaster (cd src/usr.sbin/mergemaster && make 392 install) after the buildworld before this step if you last updated 393 from current before 20020224 or from -stable before 20020408. 394 395 [8] In order to have a kernel that can run the 4.x binaries 396 needed to do an installworld, you must include the COMPAT_FREEBSD4 397 option in your kernel. Failure to do so may leave you with a system 398 that is hard to boot to recover. 399 400 Make sure that you merge any new devices from GENERIC since the 401 last time you updated your kernel config file. 402 403 [9] When checking out sources, you must include the -P flag to have 404 cvs prune empty directories. 405 406 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 407 "?=" instead of the "=" assignment operator, so that buildworld can 408 override the CPUTYPE if it needs to. 409 410 MAKEOBJDIRPREFIX must be defined in an environment variable, and 411 not on the command line, or in /etc/make.conf. buildworld will 412 warn if it is improperly defined. 413FORMAT: 414 415This file contains a list, in reverse chronological order, of major 416breakages in tracking -current. Not all things will be listed here, 417and it only starts on October 16, 2004. Updating files can found in 418previous releases if your system is older than this. 419 420Copyright information: 421 422Copyright 1998-2005 M. Warner Losh. All Rights Reserved. 423 424Redistribution, publication, translation and use, with or without 425modification, in full or in part, in any form or format of this 426document are permitted without further permission from the author. 427 428THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 429IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 430WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 431DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 432INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 433(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 434SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 435HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 436STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 437IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 438POSSIBILITY OF SUCH DAMAGE. 439 440If you find this document useful, and you want to, you may buy the 441author a beer. 442 443Contact Warner Losh if you have any questions about your use of 444this document. 445 446$FreeBSD: head/UPDATING 153044 2005-12-03 07:51:07Z dougb $ 447