UPDATING revision 121816
1Updating Information for FreeBSD current users
2
3This file is maintained and copyrighted by M. Warner Losh
4<imp@village.org>.  See end of file for further details.  For commonly
5done items, please see the COMMON ITEMS: section later in the file.
6
7NOTE TO PEOPLE WHO THINK THAT FreeBSD 5.x IS SLOW:
8	FreeBSD 5.x has many debugging features turned on, in
9	both the kernel and userland.  These features attempt to detect
10	incorrect use of system primitives, and encourage loud failure
11	through extra sanity checking and fail stop semantics.  They
12	also substantially impact system performance.  If you want to
13	do performance measurement, benchmarking, and optimization,
14	you'll want to turn them off.  This includes various WITNESS-
15	related kernel options, INVARIANTS, malloc debugging flags
16	in userland, and various verbose features in the kernel.  Many
17	developers choose to disable these features on build machines
18	to maximize performance.
19
2020031031:
21        The API and ABI of struct ifnet have been changed by removing
22        the if_name and if_unit members and replacing them with
23        if_xname, if_dname, and if_dunit.  All network drivers and most
24        userland programs which include net/if_var.h must be updated
25        and recompiled.  __FreeBSD_version has been bumped to 501113 to
26        reflect this change.
27
2820030928:
29	Changes to the cdevsw default functions have been made to remove
30	the need to specify nullopen() and nullclose() explicitly.
31	__FreeBSD_version bumpted to 501110.
32
3320030926:
34	kiconv(3) has been added. mount_msdosfs(8), mount_ntfs(8) and
35	mount_cd9660(8) need to be in sync with kernel.
36
3720030925:
38	Configuring a system to use IPFILTER now requires that PFIL_HOOKS
39	also be explicitly configured.  Previously this dependency was
40	magically handled through some cruft in net/pfil.h; but that has
41	been removed.  Building a kernel with IPFILTER but not PFIL_HOOKS
42	will fail with obtuse errors in ip_fil.c.
43
4420030923:
45	Fix a bug in arplookup(), whereby a hostile party on a locally
46	attached network could exhaust kernel memory, and cause a system 
47	panic, by sending a flood of spoofed ARP requests. See
48	FreeBSD-SA-03:14.arp.
49
5020030915:
51	A change to /etc/defaults/rc.conf now causes inetd to be started
52	with `-C 60' if it is not overridden in /etc/rc.conf.  This
53	causes inetd to stop accepting connections from an IP address
54	that exceeds the rate of 60 connections per minute.
55
5620030829:
57	The following rc.d scripts have been removed and should be
58	deleted from your installation: atm2.sh atm3.sh devdb
59	localdaemons network1 network2 network3. Depending on when
60	you last updated world and used mergemaster(8) you may or
61	may not have problems during the rc boot sequence. The simplest
62	solution is an 'rm -rf /etc/rc.d/*' and then 'mergemaster -i'.
63	The atm2.sh atm3.sh and devdb scripts were removed some time
64	ago, so depending on when you installed -CURRENT these scripts
65	may or may not exist on your system.
66
6720030824:
68	ATAng has been committed. You need to build world as sys/ata.h 
69	has changed, and userland atacontrol depends on it.
70	If you use ATA SW raids you need "device ataraid" in your
71	kernel config file, as it is no longer pulled in automatically.
72
7320030819:
74	The OFW_NEWPCI option has been turned on in the Sparc64 GENERIC kernel.
75	Among other things, this changes the device enumeration to be
76	closer to Solaris.  Be aware that, this can even cause the machine
77	to not boot without manual intervention before the fstab is adjusted.
78
7920030728:
80	All current USB and Firewire quirks in da(4) have been deprecated
81	and will be removed for 5.2.  If this causes failure for your
82	umass(4) devices, enable "options DA_OLD_QUIRKS" in your kernel
83	and send the output of "camcontrol inquiry da0" to scsi@freebsd.org
84	so the quirk can be re-enabled.
85
8620030722:
87	FPU-less support has been removed from FreeBSD.  Chances are you won't
88	notice.  386+387 support should still work after this change, but
89	it is now a minimum requirement for the i386 port that you have real
90	FPU hardware.
91
9220030714:
93	Some people are having problems with changes related to /rescue.
94	If you are building -j N, you will need to define NO_RESCUE.  Others
95	will need to define it if /rescue has issues with their environment.
96	People should report those issues to current@.
97
9820030711:
99	gcc was upgraded to 3.3.  You are advised to not build -DNOCLEAN
100	across this point.  Further, it might be a good idea to remove
101	/usr/obj.
102
10320030613: [retrospective]
104	There was a small window in which sed(1) was broken.  If you
105	happen to have sed(1) installed during that window, which is
106	evidenced by an inability to build world with the failure
107	given below, you need to manually build and install sed(1)
108	(and only sed(1)) before doing anything else. This is a one-
109	time snafu. Typical failure mode:
110
111	In file included from /usr/src/contrib/binutils/bfd/targets.c:1092:
112	targmatch.h:7:1: null character(s) ignored
113	targmatch.h:12:1: null character(s) ignored
114	targmatch.h:16:1: null character(s) ignored
115		:
116
117	The window of "sed(1)-uction" is from Wed Jun 4 15:31:55 2003 UTC
118	to Thu Jun 5 12:10:19 2003 UTC (from rev 1.30 to rev 1.31 of
119	usr.bin/sed/process.c).
120
12120030610:
122	Remove deprecated locale names and transition period code
123	for them, finishing switching to the new scheme. Check your
124	LANG environment variable.
125
12620030609:
127	CCD has been changed to be a fully GEOMified class.  Kernel
128	and ccdconfig(8) needs to be in sync, this is particularly
129	important to remember beforehand if your source tree is on
130	a ccd device.  Consider making a copy of the old ccdconfig
131	into /boot/kernel.good or wherever you keep your backup
132	kernel.
133
13420030505:
135	Kerberos 5 (Heimdal) is now built by default. Setting
136	MAKE_KERBEROS5 no longer has any effect. If you do NOT
137	want the "base" Kerberos 5, you need to set NO_KERBEROS.
138
13920030502:
140	groff has been updated.  If you try to do a buildworld and
141	get an infinite loop in troff, update to May 4th or newer.  If you
142	have a newer kernel than userland, you may need to set the OSRELDATE
143	to 500110 in your environment before starting a buildworld.
144
14520030501:
146	The old rc system has been removed.  Please report any problems
147	to freebsd-rc@yahoogroups.com, and/or freebsd-current@freebsd.org.
148	Your personal versions of these files will not be removed, so you can
149	continue to use them. However, you should take great care when updating,
150	especially when using mergemaster, since the compatibility code that
151	utilizes these old scripts has also been removed.
152
15320030423:
154	A bug has been fixed in /dev/devctl which would cause devd
155	to hang on boot, were it not for a workaround in devd.  The
156	work around in devd will be removed around 20030507.  You
157	have until then to upgrade your kernel before updating
158	userland.  In general, you should have a userland and
159	kernel that's in sync with each other.  However, given the
160	effects of this bug (hang on boot when starting devd), some
161	allowances are made.
162
16320030329:
164	Alphas with libc from between 20030312 and 20030329 exhibit
165	floating point exceptions (FPEs), most notably in awk(1)
166	while upgrading the system through a buildworld.
167
168	So, to successfully upgrade your Alpha, you must either
169	downgrade your libc.so to a pre-20030312 version, or update
170	/usr/share/mk/bsd.cpu.mk to revision 1.26 which adds -mieee
171	to CFLAGS, then forcibly rebuild and install libc:
172
173	cd /usr/src/lib/libc && \
174	    make cleandir && make obj && \
175	    make -DNOMAN -DNOPROFILE all && \
176	    make -DNOMAN -DNOPROFILE install
177
17820030208:
179	sendmail 8.12.7 has been imported.  It has one important
180	change for IPv6 users.  The default submit.mc now uses
181	'[127.0.0.1]' instead of 'localhost' meaning only IPv4 is
182	used to connect to the MTA.  Users on IPv6-only machines
183	will need to edit /etc/mail/submit.mc appropriately.
184
18520030128:
186	NODEVFS option has been removed and DEVFS thereby made standard.
187	This makes all references to MAKEDEV obsolete, and they should
188	be removed when convenient.
189
19020030126:
191	The name of the device for the ofw console has changed, sparc64 users
192	must run mergemaster to update their installed /etc/ttys.
193
19420030125:
195	The scheduler framework has grown a second scheduler and consequently
196	you must specify one and only one scheduler in your kernel config.
197	The cvs config files have been updated to use the old scheduler
198	which may be selected via 'options SCHED_4BSD'.  If you would like
199	to try the new, much more experimental, scheduler please try
200	'options SCHED_ULE' and contribute to the arch@ discussion.
201
20220030115:
203	A new version of the wi driver has been imported into the tree.
204	One now must have device wlan in the config file for it to operate
205	properly.
206
207	In addition, there have been some changes to how wi devices are
208	configured for point to point links to bring it more in line
209	with the former way of doing things, as well as compatibility
210	with NetBSD.
211
21220021222:
213 	For a period after the GCC 3.2.1 import (from 12/04 to 12/22), GCC
214 	used an incompatible form of ABI for returning structures and unions
215 	which FreeBSD's GCC maintainers were not aware of relative to previous
216 	versions of FreeBSD.  We have gone back to the ABI for now, and any
217 	code compiled which is required to interoperate with other code (not
218 	built at the same time) returning structs or unions should be 
219	rebuilt.
220
22120021216:
222	A name change in /etc/netconfig has been reverted to stay
223	compatible with suns TIRPC and also with NetBSD. You need
224	to run mergemaster after make world. A new libc does still work
225	with an outdated /etc/netconfig for some time, but you'll get
226	a warning. This warning will be removed in 20030301.
227
22820021202:
229	The recent binutils upgrade marks a kernel flag day on
230	sparc64: modules built with the old binutils will not work
231	with new kernels and vice versa. Mismatches will result in
232	panics.  Make sure your kernel and modules are in sync.
233
23420021029:
235	The value of IPPROTO_DIVERT has changed.  Make sure to keep
236	your kernel, netstat, natd and any third-party DIVERT
237	consumers in sync.
238
23920021024:
240	Old, compatibility slices have been removed in GEOM kernels.
241	This means that you will have to update your /etc/fstab to
242	not use disk devices of the form /dev/ad0a.  Instead, you
243	now must specify /dev/ad0s1a, or whatever slice your FreeBSD
244	partition really is on.  The old device names have gone
245	away, so if you use them anywhere else, you must also adjust
246	those uses.  (This doesn't affect the disks formatted in
247	the ``dangerously-dedicated'' mode.)
248
24920021023:
250	Alphas with kernels from between 20020830 and 20021023 and/or
251	rtld (ld-elf.so.1) older than 20021023 may experience problems
252	with groff while doing a buildworld (kernel: "out of memory",
253	fixed in rev 1.129 of kern/imgact_elf.c; rtld: "too few PT_LOAD
254	segments", fixed in rev 1.8 of libexec/rtld-elf/map_object.c).
255
256	So, to successfully upgrade your Alpha, you must either
257	upgrade your kernel and rtld first (which might be a bit
258	tricky), or avoid running the bootstrapped groff during the
259	"transitional" buildworld.  To avoid running groff during the
260	transitional upgrade run make buildworld with -DNOMAN,
261	-DNO_SHAREDOCS, and -DNO_LPR.
262
26320020831:
264	gcc has been upgraded to 3.2.  It is not all binary compatible
265	with earlier versions of gcc for c++ programs.  All c++
266	programs and libraries need to be recompiled.
267
268	Also, if you encounter g++ issues, rm /usr/include/g++/* before
269	doing an installworld to make sure that stale files are removed.
270
27120020827:
272	Our /etc/termcap now has all the entries from the XFree86 xterm
273	almost unchanged. This means xterm now supports color by default.
274	If you used TERM=xterm-color in the past you now should use
275	TERM=xterm. (xterm-color will lead to benign warnings).
276
27720020815:
278	A "bug" in gcc(1) that was hiding warning in system headers was
279	fixed.  It's probably time to add -DNO_WERROR to your make line
280	again.
281
28220020729:
283	COPY is being deprecated.  The 20010530 change was reverted, as
284	it causes far more pain than was expected, and to always compare
285	before installing, please use INSTALL="install -C" again.  The
286	-C option is now silently ignored when used with the -d option.
287
28820020702:
289	Problems with libc_r clients like KDE and GNOME have been resolved.
290	There are still some minor problems with some signals but the 
291	system is stable enough for general use again. SMP is less so than UP
292	but each can successfully complete multiple buildworlds.
293	Libkvm needs to be recompiled due to KSE.
294
29520020701:
296	Now would be a bad time to upgrade.  Something in or near the
297	KSE commit totally broke programs using libc_r like KDE and
298	GNOME.
299
30020020511:
301	The k5su utility installed as part of Kerberos 5 is no longer
302	installed with the set-user-ID bit set by default.  Add
303	ENABLE_SUID_K5SU=yes to /etc/make.conf to have it installed
304	with the set-user-ID bit set.
305
30620020510:
307	Gcc 3.1 debugging format (cc -g) has changed from STABS to DWARF2.
308	Unfortunately our native GDB (at version 4.18) does not understand
309	the DWARF2 debugging format.  Thus you must use `gcc -gstabs+' to
310	generated debugging information for our native GDB.
311
31220020510:
313	Due to the way CVS works, it may not properly update src/contrib/gcc
314	to the 3.1 sources.  The easiest fix is to `rm -rf' src/contrib/gcc
315	and then do a cvs update.
316
31720020421:
318	When exec'ing set[ug]id executables, the kernel now ensures that the
319	stdio file descriptors (0..2) are open.  See FreeBSD-SA-02:23.stdio.
320
32120020404:
322	New sendmail startup scripts have been installed to make it
323	easier to use alternative MTAs with FreeBSD.  Setting the rc.conf
324	variable sendmail_enable to "NO" no longer prevents any sendmail
325	daemons from starting.  Instead, either set sendmail_enable to
326	"NONE" or change mta_start_script to a script for starting
327	an alternative MTA.  Setting mta_start_script to "" will
328	also prevent any MTA from being started at boot.
329
33020020403:
331	UCONSOLE is no longer a valid kernel option.
332
33320020315:
334	FreeBSD 5.0 DP-1 was basically branched today.
335
33620020225:
337	Warnings are now errors in the kernel.  Unless you are a developer,
338	you should add -DNO_WERROR to your make line.
339
34020020217:
341	sendmail 8.12.2 has been imported.  The sendmail binary is no
342	longer a set-user-ID root binary and the infrastructure to support
343	command line mail submission has changed.  Be sure to run
344	mergemaster (especially for updating /etc/rc, /etc/defaults/rc.conf,
345	and /etc/mail) and read /etc/mail/README for more details.
346
347	Due to the import of sendmail 8.12.2, a new user and group are
348	required in order for sendmail to run as a set-group-ID
349	binary.  A 'make installworld' will use the new user and group
350	to set the owner and group of /var/spool/clientmqueue and will
351	fail if the new user and group do not exist.  The 'smmsp' user
352	and group must be merged from src/etc/group and
353	src/etc/master.passwd before using 'make installworld'.
354	'mergemaster -p' will do this.  You may need to install
355	mergemaster before this will work if you are updating from a
356	very old version of current.  The updating recipe has changed
357	as of this date.
358
35920020112:
360	The preferred configuration method for PAM is now /etc/pam.d/
361	rather than /etc/pam.conf.  If you have an unmodified
362	pam.conf, just delete it after your next mergemaster run.  If
363	you have local modifications, you can use
364	/usr/src/etc/pam.d/convert.pl to incorporate them into your
365	/etc/pam.d.
366
367	Please see the following url for more details:
368http://www.freebsd.org/cgi/mid.cgi?db=mid&id=<xzp6667fyoa.fsf@flood.ping.uio.no>
36920011229:
370	If anyone here is already using the new rc.conf(5) variable
371	networkfs_types, please note that it has changed
372http://www.freebsd.org/cgi/mid.cgi?db=mid&id=<9744.1009655556@axl.seasidesoftware.co.za>
373
37420011220:
375	sys/i4b/driver/i4b_ispppsubr.c has been retired.  This file
376	started out its life in the ISDN4BSD project as an offspring
377	from sys/net/if_spppsubr.c, which eventually got a life of its
378	own.  All the accumulated features and bugfixes of the i4b
379	version have now been merged back into the base system's
380	version now.  The only user-visible change resulting from this
381	is that i4b's sppp(4) interfaces are to be managed with
382	spppcontrol(8) again, since ispppcontrol(8) has been retired
383	as well.  (There has never been rc file support for
384	ispppcontrol in -current, but only in -stable.  That will be
385	reverted by the time the changes are MFCed.)
386
38720011215:
388	The fdc(4) driver has been updated and now automatically
389	recognizes media in `standard' formats (like 1440 KB and
390	720 KB for a 3.5" high-density drive) when accessing the
391	default device node (e. g. /dev/fd0).  The old variety of
392	floppy device nodes /dev/fd*.* is no longer present by
393	default, devices can be created (in DEVFS) on demand.  They
394	will need to be customized then for `odd' densities using
395	fdcontrol(8).
396
39720011209:
398	The bugs in procfs' debugging support code have been fixed,
399	and truss(1) now works again.
400
40120011207:
402	Daily security checks have been split out to use the periodic(8)
403	scripts.  Some change in configuration may be necessary.  Please
404	see 
405http://www.freebsd.org/cgi/mid.cgi?db=mid&id=<20011207155805.R8975@blossom.cjclark.org>
406	for details.
407
40820011204:
409	sos added VCD/SVCD support to ata driver and that needs the
410	kernel and burncd to be in sync.
411
41220011203:
413	The procfs pseudo-filesystem has now been converted to use the
414	pseudofs framework.  If you have 'options PROCFS' in your
415	kernel config, you'll need to add 'options PSEUDOFS' if it's
416	not there already.
417
418	This change temporarily breaks truss(1); use ktrace(1) instead
419	until the issue has been resolved.
420
42120011202:
422	A security hole in OpenSSH involving `UseLogin yes' has been
423	patched.
424
42520011126:
426	You need to remove /usr/obj/.../usr.bin/tip before rebuilding
427	after this date.  You need to do this only once.
428
42920011103:
430	Most of the awk issues have been resolved.  Some rough
431	edges may be left, but for the most part things should be
432	back to "normal." For CURRENT's usual definition of "normal."
433
43420011030:
435	Awk has been upgraded to the one true awk from bell labs.  Expect
436	choppy waves in the upgrade process.
437
43820011030:
439	The asr driver problem has been resolved.
440
44120011027:
442	Due to changes in other parts of the system, the asr driver
443	now causes the system to panic on boot.  Do not use it pending
444	correction.  Comment it out of any kernel config file that you
445	try to use from this date forward.
446
44720011025:
448	When crossbuilding, use TARGET=xxx where you used to use
449	MACHINE=xxx.  You don't need to set TARGET_ARCH and TARGET,
450	unless you are changing both of them.  To cross build pc98 on
451	an alpha, for example, you need to set TARGET=pc98 and
452	TARGET_ARCH=i386.
453
45420011001:
455	The kernel interface that burncd depends on has changed.
456	You must recompile both the kernel and userland applications
457	at the same time.
458
45920010929:
460	When crossbuilding, please set TARGET_ARCH rather than
461	MACHINE_ARCH to indicate the target.  In the future, one will
462	set TARGET_MACHINE where you set MACHINE now.  At the moment,
463	setting MACHINE alone for same MACHINE_ARCH machines works
464	(eg, you can build pc98 on an i386 machine and vice versa).
465
46620010927:
467	Some weird problems result from using ACPI on some machines.
468	To disable ACPI you can add
469		hint.acpi.0.disabled="1"
470	to /boot/loader.conf (or by putting set X=Y at the boot
471	loader "ok" prompt).
472
473	Alternatively, you can remove it from /boot/kernel/acpi.ko
474	or use the MODULES_OVERRIDE function in your kernel config
475	file and not list acpi in that list.
476
47720010924:
478	The buildworld has been fixed.  You may need to install
479	the 4.x compatibility libraries for some old binaries
480	to work.  Add COMPAT4X=true to your /etc/make.conf to
481	get them installed on every installworld, or execute the
482	following to get them installed only once:
483		cd src/lib/compat/compat4x.<arch>
484		make all install
485	You will see ``__stdoutp undefined'' until you do this.
486
48720010919:
488	There's a bug in the world build process.  The cross-tools
489	are build with the NEW headers, but the OLD libc.a.  This
490	leads to all kinds of problems with the new libc.  A temporary
491	workaround is to add
492		CFLAGS="-O -pipe -D_OLD_STDIO"
493	before building world when upgrading from 4.x to current.  This
494	can be removed afterwards.
495
496	A proper fix to the buildworld target is needed.
497
49820010918:
499	Peter has committed his new kthread nfs client/server code.
500	NFS may be unstable after this date.
501
50220010912:
503	KSE has hit the tree.  Lots of things are now different in
504	the kernel.  While a few problems were introduced in the
505	initial commit, most of the major ones have been found and
506	corrected.
507
50820010901:
509	In OLDCARD, CardBus bridges appear to be stable.  The work
510	arounds described in the 20010604 entry are now no longer
511	necessary and will be ignored.  Most insert/remove problems
512	have been rectified around this date.
513
51420010823:
515 	named now runs as user bind and group bind rather than as 
516 	root.  If named_enable is set to YES in /etc/rc.conf, ensure 
517 	that user bind is available in /etc/passwd (using vipw(8)) 
518 	and that group bind is available in /etc/group.  Also make 
519 	sure that user or group bind has read (and not write) 
520 	permission for your name server configuration and that it 
521 	has read and write permission for your slave zone files and 
522 	directory.
523 
524 	If you wish to continue to run named as root (a less secure 
525 	alternative), add a line to /etc/rc.conf saying
526 
527 		named_flags=
528
52920010709:
530	The PAM libraries have had an API upgrade that is beyond
531	the ability of the shared library major number to handle.
532	It is manifested by PAM-using ports dumping core. The
533	solution is to rebuild those ports.
534
53520010628:
536	The kernel compile module has moved from src/sys/compile/FOO
537	to src/sys/${MACHINE}/compile/FOO.
538
53920010625:
540	The pccard modem issue from 20010613 has been corrected.
541	OLDCARD support is still a little weak in -current.  slot 1 is
542	known not to work on some TI based cardbus bridges.  Some
543	cardbus bridges do not properly detect insert/removal events.
544	IRQ configuration needs more safety belts.
545
54620010617:
547	Softupdates problems have been corrected.
548
54920010614:
550	Peter ripped out the linkerset support.  You must, as always,
551	rerun config after you cvsup if you are using the traditional
552	kernel building methods.
553
55420010613:
555	pccard modems may not work with current after 20010604 date.  Some
556	do, others result in panics.  *MAKE*SURE* that you update your
557	config and /etc/rc.conf ala the 20010604 entry, or you will have
558	problems (this issue will be fixed, it just hasn't been yet).
559
56020010613:
561	SOFTUPDATES seem to be broken since the middle of May or so.  Do not
562	use them in current.  You can disable softupdates on all mounted
563	partitions, or remove SOFTUPDATES the kernel config file.
564
56520010612:
566	After Peter's commits to the hints code, people have been noticing
567	that certain devices are attached (or try to) twice.  This is due
568	to having both static hints as well as a /boot/device.hints.  To
569	work around this issue, please use only one or the other mechanism
570	until this bug is fixed.
571
572	Please note that a feature of config is that if you have config
573	file FOO and FOO.hints, it automatically adds FOO.hints to the
574	hints.c file, whether you want it to or not.
575
57620010610:
577	Locale names have changed to match other systems better.
578
57920010604:
580	pccard support for pci cards has been committed.  You must change
581	your /etc/pccard.conf irq lines.  It must match the irq used by
582	pcic device.  Interrupt storms may result if you fail to do this.
583	Interrupt storms look a lot like a hang.
584
585	You must also install a new pccardd, otherwise you will get an
586	interrupt storm at card reset time (just after it tells you what
587	it is).
588
589	pccardd_flags="-I" is necessary for the time being.  It tells pccardd
590	not to ask the kernel if the interrupt is really free or not before
591	using it.  You can either change the /etc/pccard.conf irq lines to
592	match pcic, or add "-i X" to the pccardd_flags.
593
59420010530:
595	INSTALL=install -C is being deprecated.  If you want to do this,
596	use COPY=-C instead.  The former method will be supported for only
597	a limited time.  If you see
598
599install: warning: the -d and -C options may not be specified together
600
601	in your makeworld, then you need to migrate towards using
602	COPY=-C.
603
60420010525:
605	It appears that vm is now stable enough to use again.  However,
606	there may be other problems, so caution is still urged.  alpha
607	definitely is in bad shape.
608
60920010521:
610	Minor repo damage has happened.  This may cause problems
611	with cvsup of ports.  If you get errors, please see
612	http://www.FreeBSD.org/cgi/query-pr.cgi?pr=27495
613	at the bottom for details on a workaround.  The error message
614	is
615Updater failed: Cannot delete "/usr/ports/www/jakarta-tomcat/files": Directory not empty
616
61720010520:
618	Vm and/or swapping are busted on -current.  Please be patient.
619
62020010519:
621	pccard has had much reorganizational work done to it over
622	the past few days.  Everything should still work, but if
623	not, please contact imp@freebsd.org.
624
62520010517:
626	ata ioctl changed.  Make sure to recompile both kernel and
627	userland at the same time.
628
62920010517:
630	New ncurses imported.
631
63220010512:
633	DEVFS is now opt out, not opt in.  Barring major problems, this
634	will be the only way to go starting July 1.
635
63620010504:
637	OpenSSH has been updated to 2.9.  Some defaults are different,
638	including RhostsRSAAuthentication, which changes from yes to no.
639
64020010502:
641	Perl breakage in 20010501 was corrected at 14:18:33 PDT.
642
64320010501:
644	Building perl was broken at 02:25:25 PDT.
645
64620010430:
647	The bug in 20010429 was corrected at 07:35:37 PDT.  It is safe to
648	go back in the water.
649
65020010429:
651	A bad bug was committed at 04:48:42 PDT.  Don't use kernels after
652	this date, but before the correction date.
653
65420010423:
655	old fsck and new kernel interactions appear to have been fixed.
656
65720010411:
658	fsck and the kernel were changed to handle some optimizations
659	to directory layout.  This breaks backward compatibility.
660	Update only if you understand that you must not use the old
661	fsck with the new kernel ever.
662
66320010330:
664	fsck has changed the meaning of the pass column in /etc/fstab.
665	Please see the cvs commit to fsck.8 or the fsck.8 man page for
666	details.  It is unclear if changes to /etc/fstab are necessary.
667
66820010319:
669	portmap had changed name to rpcbind for maximum POLA in your
670	current world.  /etc/hosts.{allow,deny} needs changes.  nfs and
671	other rpc based programs that rely on portmapper will not work
672	without updates to /etc/hosts.{allow,deny} and /etc/netconfig.
673
67420010315:
675	ata subsystem changes.  ATA_ENABLE_ATAPI_DMA, ATA_ENABLE_WC
676	and ATA_ENABLE_TAGS are no longer kernel options.  They have
677	been replaced by tunables.  See ata.4 for details.
678
67920010312:
680	The fxp driver was converted to use miibus.  If you compile
681	fxp into your kernel statically, you will need to add miibus.
682
68320010312:
684	The wi device now defaults to BSS (infrastructure) mode
685	instead of ad-hoc.
686
68720010310:
688	/dev/urandom should be a symbolic link to /dev/random now.
689	Users of current not using DEVFS need to run MAKEDEV std.
690	ssh might not work if you don't.
691
69220010303:
693	The ed driver has been updated.  It now allows mii attachments,
694	which means that you must include the miibus in your kernel if
695	you use the ed driver.
696
69720010220:
698	The problems with libc have been corrected.  It is now mostly
699	safe to go back into the water.
700
70120010211:
702	The size of FILE was changed.  This breaks upgrading.  If
703	you must upgrade, be prepared for pain.  It also breaks almost
704	all binaries that you've compiled on -current.  You are warned
705	that before upgrading would be a good time to do a level 0
706	dump of your system.  No, really, I mean it this time.
707
708	To get to the new system, you'll need to use the following
709	workaround.  Hopefully this can be sorted out so that we
710	don't have to move this to the updating section.
711
712	To get around the installworld problem, do:
713		# cd /usr/src/usr.bin/sed
714		# make install
715		# cd /usr/src
716		# make installworld
717	If that doesn't work, then try:
718		# make -k installworld
719		# make installworld
720
72120010207:
722	DEVFS is now the default.  If you use vinum, make sure that you
723	do not include devfs in your kernel as problems result.
724
72520010205:
726	FFS_ROOT and CD9660_ROOT have been removed or deprecated.
727	Remove them from your config.
728
72920010122:
730	****************************** WARNING ******************************
731			buildkernel has been changed slightly
732	****************************** WARNING ******************************
733	KERNCONF replaces the variable KERNEL for buildkernel.  You
734	should update your scripts and make.conf accordingly.
735
73620010119:
737	config has changed to allow DEV_FOO as a replacement for NFOO.
738	This requires a new config to build correctly.
739
74020010116:
741	The kernel option I386_CPU is now mutually exclusive with the
742	other cpu types. If you have an i386 system, be sure that it
743	only had this line.  Remove it for all other configurations.
744
74520010110:
746	Changes to the kernel require it and burncd be in sync.
747
74820010102:
749	Everyone who has hw.sndunit set to something in
750	/etc/sysctl.conf, it is now hw.snd.unit.
751
75220010101:
753	ex and vi were broken by some changes to sys/queue.h.  If you
754	have a bad vi, you will see make buildworld fail with a core
755	dump while building termcap.  You can work around this problem
756	by adding -k to your make buildworld.  This will cause the
757	build to complete and install a new vi.  Once that's done, you
758	can rebuild again without the -k to pick up anything that
759	might have been ignored by the -k option.
760
761	Others have suggested that you can just rebuild libc if your
762	vi/ex is dynamically linked, but I've not received any reports
763	of this working.
764
76520001228:
766	There have been some changes to libcrypt in -current.  The
767	libscrypt/libdescrypt symlink silliness is gone and the installed
768	libcrypt is fully functional.  Be aware of this.
769
77020001218:
771	Linksys Fast Ethernet PCCARD cards supported by the ed driver
772	now require the addition of flag 0x80000 to their config line
773	in pccard.conf(5).  This flag is not optional.  These Linksys
774	cards will not be recognized without it.
775
77620001205:
777	Important new FreeBSD-version stuff: PAM support has been worked
778	in, partially from the "Unix" OpenSSH version.  This requires
779	adding the following in pam.conf:
780  
781	sshd    auth    sufficient      pam_skey.so
782	sshd    auth    required        pam_unix.so         try_first_pass
783	sshd    session required        pam_permit.so
784
78520001031:
786	cvs updated to 1.11.
787
78820001020:
789	The random device needs more entropy, so you need to make sure
790	that you've run mergemaster to get a /etc/rc which will seed
791	/dev/random.  If you don't and the system hangs after ldconfig,
792	then banging on the keyboard randomly until it unhangs is one
793	workaround.
794
79520001010:
796	****************************** WARNING ******************************
797				Sendmail has been updated.
798	****************************** WARNING ******************************
799	o mail.local(8) is no longer installed as a set-user-id binary.
800	o sendmail(8) is now built with STARTTLS support unless NO_OPENSSL
801	  is set.
802	o The default /etc/mail/sendmail.cf disables the SMTP EXPN and VRFY
803	  commands.
804	o Now using sendmail's version of vacation(1).
805	o The sendmail cf building tools (contrib/sendmail/cf) are installed
806	  in /usr/share/sendmail/cf.
807	o sendmail.cw changed to local-host-names
808
809	More details can be found at
810		http://people.freebsd.org/~imp/UPDATING/sendmail-20001010
811
81220001009:
813	The ports tree's new layout is in place.  Be sure to update
814	your entire ports tree, or you will have problems.
815
81620001006:
817	The perl build procedure no longer installs miniperl, nor uses
818	the installed miniperl.  It is recommended that you delete
819	/usr/bin/miniperl.
820
82120001005:
822	This weekend the ports tree will be updated to a new layout.
823	It will be in an inconsistent state until noted in the UPDATING
824	file, or with asami-san's message to the relevant mailing
825	lists.  With this new layout, you'll need to update the whole
826	tree for anything to work.
827
82820000928:
829	There was a change in the passwd format.  Need more information.
830
83120000916:
832	/boot/kernel/kernel.ko -> /boot/kernel/kernel change has taken
833	place.  Please update boot loader (not the boot blocks) at the
834	same time as your kernel.
835
83620000914:
837	The new pmtimer device is necessary for laptops.  Failure to
838	include the device will cause suspended laptops losing time
839	when they resume.  Include
840		device		pmtimer
841	in your config file and
842		hint.pmtimer.0.at="isa"
843	to your /boot/device.hints file.
844
84520000911:
846	The random device has been turned into a (pseudo-)device,
847	rather than an option. The supplied kernel config files have
848	been updated. You will need to do something similar in your
849	own kernel config file.
850	Remove:
851		options		RANDOMDEV
852	Add:
853		device		random
854	If you prefer to load the loadable module, you need to do
855	nothing.
856
85720000909:
858	The random device module has been renamed from randomdev.ko to
859	random.ko. You will need to edit your /boot/loader.conf to
860	reflect this if you load this module at boot time.
861	The line should read:
862		random_load="YES"
863
86420000907:
865	The SMPNG commit has happened.  It should work, but if it
866	doesn't, fallback to the PRE_SMPNG CVS tag.  There are likely
867	to be a variety of minor issues.  Please see 20000905 to make
868	sure you don't have model loading problems which might at
869	first blush appear related to SMP.
870
87120000906:
872	nsswitch has been imported from NetBSD.  Among other things,
873	this means that /etc/host.conf is no longer used.  See
874	nsswitch.conf(5) instead.  Note that at boot time rc.network
875	will attempt to produce a new nsswitch.conf file for you if you
876	don't have one, and you have host.conf.
877
87820000905:
879	The ucred structure changed size.  This breaks the interface
880	that mountd uses.  Trying to use an older mountd with a newer
881	kernel guarantees a panic.  This means that you need to use
882	kernels newer than today only with matching mountd, but you
883	needed to do that anyway with the boot loader changes.
884
88520000905:
886	The boot loader has been updated.  The new default kernel is
887	now /boot/kernel/kernel.ko.  The new default module location
888	is /boot/kernel.
889
890	You *MUST* upgrade your boot loader and kernel at the same time.
891	The easiest way to do this is to do the buildworld/buildkernel/
892	installkernel/installworld dance.
893
894	Furthermore, you are urged to delete your old /modules directory
895	before booting the new kernel, since kldload will find stale
896	modules in that directory instead of finding them in the correct
897	path, /boot/kernel.  The most common complaint that this cures
898	is that the linux module crashes your machine after the update.
899
900	if [ ! -d /boot/kernel.old ]; then
901		mv /modules.old /boot/kernel.old
902		chflags noschg /kernel.old
903		mv /kernel.old /boot/kernel.old/kernel.ko
904		chflags schg /boot/kernel.old/kernel.ko
905	fi
906
90720000904:
908	A new issue with the sendmail upgrade has come to light.
909	/etc/aliases has moved to /etc/mail/aliases.  Mergemaster will 
910	incorrectly install the default aliases in /etc/mail rather than
911	move the old one from /etc.  So you'll need to manually move the
912	file, create a symbolic link, remove the old /etc/aliases.db and
913	run newaliases.  For safety sake, you should stop sendmail
914	while doing this and run the upgrade when locally sourced email
915	is not likely to be generated.
916
91720000825:
918	/boot/device.hints is now required for installkernel to
919	succeed.  You should copy GENERIC.hints for your architecture
920	into /boot/device.hints.  If and only if you compile hints
921	into your kernel, then this file may be empty.  Please note,
922	if you have an empty or missing /boot/device.hints file and
923	you neglected to compile hints into your kernel, no boot
924	messages will appear after the boot loader tries to start the
925	kernel.
926
92720000821:
928	If you do NOT have ``options RANDOMDEV'' in your kernel and
929	you DO want the random device then add randomdev_load="YES" to
930	/boot/loader.conf.
931
93220000812:
933	suidperl is now always built and installed on the system, but
934	with permissions of 511.  If you have applications that use
935	this program, you are now required to add ENABLE_SUIDPERL=true
936	to /etc/make.conf.  If you forget to do this,
937		chmod 4511 /usr/bin/suidperl
938	will fix this until the next build.
939
94020000812:
941	sendmail has been updated from 8.9.3 to 8.11.0.  Some of the more
942	visible changes that may immediately affect your configuration
943	include:
944	- New default file locations from src/contrib/sendmail/cf/README
945	- newaliases limited to root and trusted users
946	- MSA port (587) turned on by default
947	- New queue file naming system so can't go from 8.11 -> 8.9
948	- FEATURE(`rbl') renamed to FEATURE(`dnsbl')
949	- FEATURE(`nullclient') is more full featured
950	- FEATURE(`nouucp') requires an argument: `reject' or `nospecial'
951	- mail.local FreeBSD-only -b option changed to -B
952	- See src/contrib/sendmail/RELEASE_NOTES for more info
953
95420000810:
955	suidperl (aka sperl) is no longer build by default.  You must
956	specifically define BUILD_SUIDPERL to "true" for it to be build.
957	Furthermore, we recommend that you remove /usr/bin/sperl* and
958	/usr/bin/suidperl files from your system unless you have a
959	specific use for it.
960
96120000729:
962	Networking defaults have been tightened.  Anybody upgrading
963	/etc/defaults/rc.conf needs to add the following lines to
964	/etc/rc.conf if they want to have the same setup
965	afterwards (unless the variables already are set, of course):
966		# Enable network daemons for user convenience.
967		inetd_enable="YES"
968		portmap_enable="YES"
969		sendmail_enable="YES"
970
97120000728:
972	If you have null_load="YES" in your /boot/loader.conf, you
973	will need to change that to nullfs_load="YES".
974
97520000728:
976	The "installkernel" target has changed slightly. Now even if
977	you override KERNEL e.g. 'make installkernel KERNEL=MYKERNEL'
978	it will install the MYKERNEL file (built with the buildkernel
979	target) as /kernel rather than /MYKERNEL. Those who have
980	updated their /boot/loader.conf files to point to /MYKERNEL
981	should remove that entry or perform manual rename of /kernel
982	to /MYKERNEL.
983
98420000711:
985	If you use CVSUP or CTM to get CVS trees, AND you used to get 
986	the old crypto files from internat.freebsd.org AND you check
987	out files from the CVS tree with the cvs command, please read
988		http://people.freebsd.org/~imp/internat.txt
989	for details on potential problems that you might have and how
990	to get around them.
991
992	If you are merely a mirror, or don't answer yes to each of the
993	clauses above, you needn't worry.
994
99520000711:
996	/etc/security has been updated to print the inode number of
997	setuid programs that have changed.  You will see a large spike
998	in the number of changed programs the first time when you run
999	mergemaster to get a new /etc/security.
1000
100120000710:
1002	/dev/random now has good entropy collection (from the keyboard
1003	and sysmouse drivers). Please ensure that either `options
1004	RANDOMDEV' is present in your kernel config file or that
1005	`randomdev_load="YES"' is in your /boot/loader.conf. If you do
1006	not have the /dev/random driver, OpenSSL (and consequently
1007	lots of crypto tools (like SSH)) will fail with strange
1008	errors. (see below, 20000624).
1009
1010	FreeBSD-current is safe again to run Crypto.
1011
101220000709:
1013	phk made the malloc default options AJ.  This may slow things
1014	down and uncover other latent bugs in the code.  If you need to
1015	run at full speed, you can disable this by doing the following:
1016		ln -s aj /etc/malloc.conf
1017
101820000706:
1019	libftpio's version was accidentally bumped a few days ago.  This
1020	has been corrected.  You may need to remove /usr/lib/libftpio.so.6
1021	before doing your next buildworld/installworld pair.  It certainly
1022	won't hurt to remove it before the update procedure.  It will
1023	break fetch until a new one is built, but ftp can be used in the
1024	interim if needed.
1025
102620000705:
1027	The crypto packages have changed for the cvsup.  This has been done
1028	in a backward compatible way, but the old packages will go away at
1029	some point in the future.  Look at /usr/share/examples/cvsup for
1030	details.
1031
103220000704:
1033	With the new sys/modules/sound/drivers/*, you will need to
1034	set SYSDIR until you do an installworld after July 7th.
1035
103620000704:
1037	rc.shutdown and rc will now call the rc.d scripts with start
1038	or stop.  This may cause some harmless warnings from older
1039	rc.d scripts that haven't been updated.
1040
104120000630:
1042	The libfetch based version of fetch has gone into the tree.
1043	Minor problems may result on some of the less popular sites,
1044	which should be reported to des@freebsd.org.
1045
104620000625:
1047	From approximately this date forward, one must have the crypto
1048	system installed in order to build the system and kernel.
1049	While not technically strictly true, one should treat it as
1050	required and grab the crypto bits.  If you are grabbing CVS
1051	trees, src-all and cvs-crypto should be treated as if they
1052	were required.  You should check with the latest collections
1053	to make sure that these haven't changed.
1054
105520000624:
1056	Mark Murray just committed the first parts of a cleanup of
1057	/dev/zero, et al.  This is also cleaning up /dev/random.
1058	The entropy is disconnected, so DO NOT USE VERSIONS OF FREEBSD
1059	-CURRENT FROM THIS POINT to 2000710 for cryptographic services
1060	until Mark can merge in the fixes to this work in progress.
1061	openssh and openssl should not be used to generate keys from this
1062	date to the completion of the work.
1063
1064	If you must operate at this reduced level of security, add '
1065	options RANDOMDEV' to your kernel or modload the randomdev
1066	module.  You may also need to copy a new MAKEDEV to /dev and
1067	recreate the random and urandom devices.
1068
106920000622:
1070	The license on the softupdates is now a standard 2 clause
1071	BSD license.  You may need to remove your symbolic links
1072	that used to be required when updating.
1073
107420000621:
1075	Scott Flatman <sf@aracnet.com> sent in a decent write-up on
1076	the config file update procedure.
1077		http://people.freebsd.org/~imp/config-upd.html
1078	NOTE: LINT is gone.  It has been replaced with NOTES.  NOTES
1079	isn't buildable.  However, you can generate a LINT file:
1080		cd /sys/<ARCH>/conf && make LINT
1081
108220000620:
1083	Binutils 2.10 have hit the tree, or will shortly.  As soon
1084	as they do, the problem noted in 20000522 will be resolved and
1085	that workaround will no longer be required.
1086
108720000615:
1088	phk removed the compatibility creation of wd devices in the
1089	ad driver.  If you haven't done so already, you must update
1090	your fstab, etc to use the ad devices instead of the wd
1091	devices.
1092
1093	In addition, you'll need to update your boot blocks to a
1094	more modern version, if you haven't already done so.  Modern
1095	here means 4.0 release or newer (although older releases
1096	may work).
1097
109820000612:
1099	Peter took an axe to config(8).  Be sure that you read his mail
1100	on the topic before even thinking about updating.  You will
1101	need to create a /boot/device.hints or add a hints directive
1102	to your config file to compile them in statically.  The format
1103	of the config file has changed as well.  Please see GENERIC or
1104	NEWCARD for examples of the new format.
1105
1106	Indirectly, this also breaks USERCONFIG.  Unless a newer entry
1107	says that it has been fixed, assume that must use the hints mechanism
1108	in the loader if you need to use a machine with very old ISA cards
1109	in it.
1110
111120000522:
1112	A new set of binutils went into the tree today.  Anybody
1113	building a kernel after this point is advised that they need
1114	to rebuild their binutils (or better yet do a
1115	buildworld/installworld) before building a new kernel.
1116
1117	Due to bugs in binutils, using malloc options (eg /etc/malloc.conf
1118	or MALLOC_OPTIONS env var) J will cause ld to dump core.  It
1119	is recommended that you don't set this option until the problem
1120	is resolved.
1121
112220000513:
1123	The ethernet drivers were all updated to clean up the BPF handling.
1124
112520000510:
1126	The problems with boot blocks on the alphas have been corrected.
1127	This will require some care in updating alphas.  A new libstand
1128	is requires for the boot blocks to build properly.
1129
113020000503:
1131	Recompile all kld modules.  Proper version dependency info
1132	is now available.
1133
113420000502:
1135	Modules have been disconnected from the buildworld tree and 
1136	connected to the kernel building instead.
1137
113820000427:
1139	You may need to build gperf
1140		cd /usr/src/gnu/usr.bin/gperf && make depend all install
1141	when upgrading from 4.0 -> current.  The build system now uses
1142	an option only in -current.
1143
114420000417:
1145	The method that we brand ELF binaries has changed to be more
1146	acceptable to the binutils maintainers.  You will need to
1147	rebrand your ELF binaries that aren't native.  One problem
1148	binary is the Linux ldconfig.  After your make world, but
1149	before you reboot, you'll need to issue:
1150		brandelf -t Linux /compat/linux/sbin/ldconfig
1151	if you have Linux compatibility enabled on your machine.
1152
115320000320:
1154	If you have really bad/marginal IDE drives, you may find they
1155	don't work well.  Use pio mode instead.  The easiest way to
1156	cope if you have a problem combination is to add:
1157		/sbin/sysctl hw.ata.ata_dma=0
1158	to the start of /etc/rc.conf.
1159
116020000319:
1161	The ISA and PCI compatibility shims have been connected to the
1162	options COMPAT_OLDISA and COMPAT_OLDPCI.  If you are using old
1163	style PCI or ISA drivers (i.e. tx, voxware, etc.) you must
1164	include the appropriate option in your kernel config.  Drivers
1165	using the shims should be updated or they won't ship with
1166	5.0-RELEASE, targeted for 2001.
1167
116820000318:
1169	We've entered the traditional post release dumping party.
1170	Large kernel changes are being committed and are in the
1171	works.  It is important to keep the systems' klds and kernel
1172	in sync as kernel interfaces and structures are changing.
1173	Before reporting kernel panics, make sure that all modules
1174	that you are loading are up to date.
1175
117620000315:
1177	If you are upgrading from an older version of FreeBSD, you
1178	need to update your boot blocks as well.  'disklabel -B ad0'
1179	will do the trick.  This isn't critical until you remove your
1180	wd device entries in /dev, at which point your system will not
1181	boot.
1182
118320000315:
1184	4.0 RELEASE shipped.  Please see the 4.0 UPDATING file for how
1185	to upgrade to 4.0 from 3.x.
1186
1187COMMON ITEMS:
1188
1189	General Notes
1190	-------------
1191	Avoid using make -j when upgrading.  From time to time in the
1192	past there have been problems using -j with buildworld and/or
1193	installworld.  This is especially true when upgrading between
1194	"distant" versions (eg one that cross a major release boundary
1195	or several minor releases, or when several months have passed
1196	on the -current branch).
1197
1198	Sometimes, obscure build problems are the result of environment
1199	poisoning.  This can happen because the make utility reads its
1200	environment when searching for values for global variables.
1201	To run your build attempts in an "environmental clean room",
1202	prefix all make commands with 'env -i '.  See the env(1) manual
1203	page for more details.
1204
1205	To build a kernel
1206	-----------------
1207	If you are updating from a prior version of FreeBSD (even one just
1208	a few days old), you should follow this procedure. With a
1209	/usr/obj tree with a fresh buildworld,
1210	make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1211	make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1212
1213	To just build a kernel when you know that it won't mess you up
1214	--------------------------------------------------------------
1215	cd src/sys/{i386,alpha}/conf
1216	config KERNEL_NAME_HERE
1217	cd ../../compile/KERNEL_NAME_HERE
1218	make depend
1219	make
1220	make install	
1221
1222	If this fails, go to the "To build a kernel" section.
1223
1224	To rebuild everything and install it on the current system.
1225	-----------------------------------------------------------
1226	# Note: sometimes if you are running current you gotta do more than
1227	# is listed here if you are upgrading from a really old current.
1228
1229	<make sure you have good level 0 dumps>
1230	<maybe fix /etc/fstab>				[7]
1231	make buildworld
1232	make buildkernel KERNCONF=YOUR_KERNEL_HERE
1233	make installkernel KERNCONF=YOUR_KERNEL_HERE
1234							[1]
1235	<reboot in single user>				[3]
1236	mergemaster -p					[5]
1237	make installworld
1238	mergemaster					[4]
1239	<reboot>
1240
1241
1242	To cross-install current onto a separate partition
1243	--------------------------------------------------
1244	# In this approach we use a separate partition to hold
1245	# current's root, 'usr', and 'var' directories.   A partition
1246	# holding "/", "/usr" and "/var" should be about 2GB in
1247	# size.
1248
1249	<make sure you have good level 0 dumps>
1250	<boot into -stable>
1251	make buildworld
1252	<maybe newfs current's root partition>
1253	<mount current's root partition on directory ${CURRENT_ROOT}>
1254	make installworld DESTDIR=${CURRENT_ROOT}
1255	make buildkernel KERNCONF=YOUR_KERNEL_HERE
1256	cp /usr/src/sys/${ARCH}/conf/GENERIC.hints \
1257		${CURRENT_ROOT}/boot/device.hints	# as needed
1258	make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1259	cd /usr/src/etc; make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1260	cp /etc/fstab ${CURRENT_ROOT}/etc/fstab 		   # if newfs'd
1261	<edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1262	<reboot into current>
1263	<do a "native" rebuild/install as described in the previous section>
1264	<maybe install compatibility libraries from /usr/src/lib/compat>
1265 	<reboot>	
1266
1267
1268	To upgrade in-place from 4.x-stable to current 
1269	----------------------------------------------
1270	# 5.x uses more space than 4.x.  Also, the location of kernel
1271	# modules has changed.  If you are installing 5.0 onto a 4.x
1272	# system, you'll need about 30MB of free disk space on your /
1273	# partition.  If you have less than this, you may encounter difficult
1274	# to back out of problems with this procedure.  If /tmp is on
1275	# the / partition, you may want to completely remove all its content
1276	# before upgrading, as this can be a common source of shortage of
1277	# space on /.
1278	
1279	<make sure you have good level 0 dumps>
1280	<maybe fix /etc/fstab>				[7]
1281	make buildworld					[9]
1282	make buildkernel KERNCONF=YOUR_KERNEL_HERE	[8]
1283	cp src/sys/${MACHINE}/conf/GENERIC.hints /boot/device.hints [2]
1284	make installkernel KERNCONF=YOUR_KERNEL_HERE
1285	cd src/sys/boot ; make install			[6]
1286							[1]
1287	<reboot in single user>				[3]
1288	mergemaster -p					[5]
1289	rm -rf /usr/include/g++
1290	make installworld
1291	mergemaster					[4]
1292	<reboot>
1293
1294	Make sure that you've read the UPDATING file to understand the
1295	tweaks to various things you need.  At this point in the life
1296	cycle of current, things change often and you are on your own
1297	to cope.  The defaults can also change, so please read ALL of
1298	the UPDATING entries.
1299
1300	Also, if you are tracking -current, you must be subscribed to
1301	freebsd-current@freebsd.org.  Make sure that before you update
1302	your sources that you have read and understood all the recent
1303	messages there.  If in doubt, please track -stable which has
1304	much fewer pitfalls.
1305
1306	[1] If you have third party modules, such as vmware, you
1307	should disable them at this point so they don't crash your
1308	system on reboot.
1309
1310	[2] If you have legacy ISA devices, you may need to create
1311	your own device.hints to reflect your unique hardware
1312	configuration.
1313
1314	[3] From the bootblocks, boot -s, and then do
1315		fsck -p
1316		mount -u /
1317		mount -a
1318		cd /usr/src
1319		adjkerntz -i		# if CMOS is wall time
1320	Also, when doing a major release upgrade, it is required that
1321	you boot into single user mode to do the installworld.
1322	For the 4.x -> 5.0 upgrade, you will also see many messages about
1323	needing to recompile your userland.  These are harmless and can
1324	be ignored while you proceed to the next step.
1325
1326	[4] Note: This step is non-optional.  Failure to do this step
1327	can result in a significant reduction in the functionality of the
1328	system.  Attempting to do it by hand is not recommended and those
1329	that pursue this avenue should read this file carefully, as well
1330	as the archives of freebsd-current and freebsd-hackers mailing lists
1331	for potential gotchas.
1332
1333	[5] Usually this step is a noop.  However, from time to time
1334	you may need to do this if you get unknown user in the following
1335	step.  It never hurts to do it all the time.  You may need to
1336	install a new mergemaster (cd src/usr.sbin/mergemaster && make
1337	install) after the buildworld before this step if you last updated
1338	from current before 20020224 or from -stable before 20020408.
1339
1340	[6] 4.x boot loader can be used to boot a 5.x system, however
1341	it is difficult to do that at best.  If you wish to try, then
1342	you should interrupt the boot and at the ok prompt type:
1343		ok unload
1344		ok boot /boot/kernel/kernel
1345	If this fails to work, you must install a new boot loader as
1346	described here.
1347
1348	[7] Before you upgrade, please make sure that you are not using
1349	compatibility slices.  These are device names of the form, on i386
1350	and other architectures that use MBR slicing, /dev/ad0a without the
1351	actual slice name.  Chances are excellent that these will break.
1352	You generally must update these entries to use the post FreeBSD
1353	2.x form of /dev/ad0s1a.
1354
1355	[8] In order to have a kernel that can run the 4.x binaries
1356	needed to do an installworld, you must include the COMPAT_FREEBSD4
1357	option in your kernel.  Failure to do so may leave you with a system
1358	that is hard to boot to recover.
1359
1360	[9] When checking out sources, you must include the -P flag to have
1361	cvs prune empty directories.
1362FORMAT:
1363
1364This file contains a list, in reverse chronological order, of major
1365breakages in tracking -current.  Not all things will be listed here,
1366and it only starts on March 15, 2000.  Updating files can found in
1367previous releases if your system is older than this.
1368
1369Copyright information:
1370
1371Copyright 1998, 2002 M. Warner Losh.  All Rights Reserved.
1372
1373Redistribution, publication, translation and use, with or without
1374modification, in full or in part, in any form or format of this
1375document are permitted without further permission from the author.
1376
1377THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1378IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1379WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1380DISCLAIMED.  IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1381INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1382(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1383SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1384HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1385STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1386IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1387POSSIBILITY OF SUCH DAMAGE.
1388
1389If you find this document useful, and you want to, you may buy the
1390author a beer.
1391
1392Contact Warner Losh if you have any questions about your use of
1393this document.
1394
1395$FreeBSD: head/UPDATING 121816 2003-10-31 18:32:15Z brooks $
1396