UPDATING revision 1.375 1 $NetBSD: UPDATING,v 1.375 2025/01/31 22:33:30 christos Exp $
2
3 This file (UPDATING) is intended to be a brief reference to recent
4 changes that might cause problems in the build process, and a guide for
5 what to do if something doesn't work.
6
7 For a more detailed description of the recommended way to build NetBSD
8 using build.sh, see the BUILDING file.
9
10 Note that much of the advice in this UPDATING file was written before
11 build.sh existed. Nevertheless, the advice here may be useful for
12 working around specific problems with build.sh.
13
14 Sections are marked with "^^^^^". After the section on "Recent changes"
15 are several sections containing more general information.
16
17 See also: BUILDING, build.sh, Makefile.
18
19 Recent changes:
20 ^^^^^^^^^^^^^^^
21
22 20250131:
23 The switch to the new jemalloc requires cleaning in libc.
24 20241122:
25 Changes to various libraries' build options require cleaning
26 their objdirs in update builds:
27
28 cd external/bsd/file/lib && $TOOLDIR/bin/nbmake-$ARCH clean
29 cd external/bsd/libarchive/lib && $TOOLDIR/bin/nbmake-$ARCH clean
30 cd external/public-domain/xz/lib && $TOOLDIR/bin/nbmake-$ARCH clean
31
32 Also, for architectures with MKCOMPAT, it is necessary to clean
33 the compat objdirs too. The easiest way is:
34
35 rm -rf OBJDIR/compat/*/*/external/bsd/file/lib
36 rm -rf OBJDIR/compat/*/*/external/bsd/libarchive/lib
37 rm -rf OBJDIR/compat/*/*/external/public-domain/xz/lib
38
39 Changes to bsd.lib.mk to improve detecting differences in
40 shared library symbol exports may cause some .actsym files in
41 the objdir to become stale in update builds.
42
43 To work around this, delete all files matching `*.actsym' in
44 the objdir. For example:
45
46 find OBJDIR -name '*.actsym' -type f -print0 | xargs -0 rm
47
48 20241104:
49 Changes around the integration of the zstd compression
50 library may require manual deletion of some object directories
51 if you update from a build from a few days ago:
52 rm -rf DESTDIR/usr/lib/*/libarchive*
53 rm -rf DESTDIR/usr/lib/*/libmagic*
54 rm -rf DESTDIR/usr/lib/*/libzstd*
55 rm -rf DESTDIR/usr/lib/libarchive*
56 rm -rf DESTDIR/usr/lib/libmagic*
57 rm -rf DESTDIR/usr/lib/libzstd*
58 rm -rf OBJDIR/compat/*/*/external/bsd/file/
59 rm -rf OBJDIR/compat/*/*/external/bsd/libarchive/
60 rm -rf OBJDIR/compat/*/*/external/bsd/zstd/
61 rm -rf OBJDIR/external/bsd/file/
62 rm -rf OBJDIR/external/bsd/libarchive/
63 rm -rf OBJDIR/external/bsd/zstd/
64 rm -rf OBJDIR/external/gpl3/gcc/
65 rm -rf OBJDIR/tools/gcc/
66
67 20240926:
68 Building -current when running on amd64 from about 20240924
69 to about 20240926 will not work due to a "malloc_np.h"
70 error. Please downgrade to a version from 20240924 or older,
71 or upgrade to a newer version e.g. using a binary release from
72 the NetBSD build servers.
73
74 20240923:
75 Update builds will require cleaning the object directories for
76 jemalloc (like: "rm -rf $OBJ/external/bsd/jemalloc*") and the
77 libc dependency files (like: "rm $OBJ/lib/libc/jemalloc.*").
78 On architectures with COMPAT libs, those also have to be cleaned,
79 e.g. on sparc64: "rm -rf $OBJ/compat/sparc64/sparc/external/bsd/jemalloc*"
80 and "rm $OBJ/compat/sparc64/sparc/lib/libc/jemalloc.*".
81
82 20240817:
83 Update builds will require cleaning in src/external/historical/nawk/bin
84 in order to remove the awk binary since now there is a subdirectory
85 called awk.
86
87 20240812:
88 Update builds will require removing the tools objdir for gdb
89 if building with MKCROSSGDB=yes. All architectures use gdb.old
90 now.
91
92 20240630:
93 Update builds will require removing the tools objdir for binutils
94 (as most architectures should use binutils.old now).
95
96 20240610:
97 Update builds are likely to require removing the objdir for
98 distrib/<arch>/cdroms - or at least references to libarchive
99 from within there after the recent libarchive update.
100
101 20240504:
102 Update builds on x86 require making the `cleandir' target in
103 lib/libm, or deleting the objdir for lib/libm.
104
105 20240423:
106 Update builds with x11 may fail after switching to Mesa 21.
107
108 20240410:
109 Update builds may require manually deleting
110 $DESTDIR/var/run/named (and, potentially,
111 $DESTDIR/var/run/lwresd) in order to avoid checkflist failure.
112
113 20240409:
114 32-bit compatibility libraries were moved into the base32
115 and debug32 sets. HTML man pages were moved into the manhtml set.
116
117 20230828:
118 If:
119 - you updated to current and ran postinstall between 20230826
120 and 20230828 inclusive, and
121 - you are not using anything outside the base system to
122 populate /etc/openssl/certs (e.g., manually adding
123 certificates or using ca-certificates or mozilla-rootcerts or
124 mozilla-rootcerts-openssl from pkgsrc),
125 delete /etc/openssl/certs and rerun postinstall or just
126 `certctl rehash'.
127
128 Otherwise, certctl(8) will think someone else has left
129 /etc/openssl/certs in the way and will avoid clobbering it on
130 upgrade from older NetBSD.
131
132 20230718:
133 build.sh will use mk.conf in the same directory as build.sh instead
134 of /etc/mk.conf, unless MAKECONF is already defined in the environment.
135
136 20230714:
137 Import of gcc 10.5 requires a clean build of at least tools/gcc
138 and external/gpl3/gcc* object directories. An update build
139 without cleaning will result in obscure failures in rare corner
140 cases.
141
142 20230604:
143 Building native kernels with the installed make(1) instead of
144 the $TOOLDIR/bin/nbmake-${arch} wrapper will fail if userland
145 has not been updated. Note that this is an unsupported build
146 configuration (but usually works if userland is -current enough).
147
148 20230523:
149 ctfmerge was fixed as macOS host tool. This may require a clean tools
150 rebuild to detect the update to tools/compat/configure.
151
152 20230515:
153 New openssl build requires removal of the crypto/external/bsd/openssl
154 and tests/crypto/libcrypto subdirectories in the ${OBJDIR} hierarchy.
155 Otherwise test results may be wrong due to wrong "golden" output
156 files being installed.
157
158 20230322:
159 Fixes for moved /lib/libisns* mean that builds will complain about
160 ./usr/lib/libisns* being missing until src/lib/libisns is forced
161 to (re)install the files, including the symlinks. The simplest
162 way is to clean this subdir before building.
163
164 20230112:
165 New binutils require an updated ld.elf_so. If you are doing
166 (unsupported) in-place self builds (with the -E flag to build.sh),
167 make sure to have installed latest ld.elf_so before you rebuild
168 userland.
169
170 20221116:
171 The addition to NetBSD's version of UFS2 of support for extended
172 attributes broke backward compatibility with previous releases
173 of NetBSD, so UFS2 has been restored to being compatible with
174 previous NetBSD releases by disabling extended attributes.
175 (Note that ACLs are implemented as extended attributes, so
176 this changes disables ACLs as well.)
177
178 Support for UFS2 with extended attributes is now available in a new
179 UFS variant called UFS2ea. If you have created extended attributes
180 in an original UFS2 file system then "fsck -p" will now fail due to
181 the unexpected presence of extended attributes and "fsck -y" will
182 remove all extended attributes. If you wish to preserve extended
183 attributes rather than delete them, there is a utility to convert
184 a UFS2 file system to UFS2ea and leave extended attributes in place,
185 but this should be used with caution since it will preserve any
186 extended attributes that have been corrupted by the backward
187 incompatibility too.
188
189 If you wish to use a UFS2ea file system as your root file system,
190 then you will need to update your boot loader to a version that
191 supports UFS2ea.
192
193 For more information, see:
194 https://wiki.netbsd.org/features/UFS2ea
195
196 20221111:
197 The new libdrm import worsened the conflict issues for the
198 kdump/ktruss ioctl, and i915 now conflicts with base, and has
199 been turned off. This will cause update build issues like:
200
201 kdump-ioctl.c:12175:143: error: 'DRM_IOCTL_I915_DESTROY_HEAP'
202 undeclared here (not in a function);
203 did you mean 'DRM_IOCTL_MODE_DESTROY_DUMB'?
204
205 You'll need to clean usr.bin/ktruss, usr.bin/kdump, and rescue.
206
207 20220921:
208 Since the kernel version was bumped to 9.99.100, the bootloader
209 must be updated on x86 or EFI boot platforms in order to load
210 modules from boot.cfg(5) or interactively at the bootloader
211 prompt.
212
213 The kernel can still load modules at runtime, with modload(8)
214 or modules.conf(5), with no bootloader update. This will not
215 affect release branches because it only applies to patch
216 numbers >=100.
217
218 On x86 (i386 or amd64) with BIOS boot, this requires copying a
219 new /usr/mdec/boot to /boot. You can build this in the destdir
220 by running `$TOOLDIR/bin/nbmake-$ARCH dependall install' in
221 sys/arch/i386/stand.
222
223 On platforms with EFI boot (including x86 with EFI boot), this
224 requires copying a new /usr/mdec/boot*.efi to the EFI/BOOT/
225 directory on the EFI system partition. The boot*.efi file is:
226
227 aarch64 bootaa64.efi
228 amd64 bootx64.efi
229 arm bootarm.efi (32-bit arm)
230 i386 bootx32.efi
231
232 You can build this in the destdir by running
233 `$TOOLDIR/bin/nbmake-$ARCH dependall install' in
234 sys/stand/efiboot/boot*.
235
236 20220821:
237 Support for building extsrc/ has been deprecated.
238 EXTSRCSRCDIR and MKEXTSRC have been deprecated.
239
240 20220714:
241 Updates to xorg-server and associated drivers may cause builds to
242 fail. Cleaning both DESTDIR and the xorg build tree may be needed.
243
244 20220628:
245 Changes in the build of src/games/robots require a clean build
246 of that program.
247
248 20211116:
249 Changes in the xorg build require clean obj dirs for external/mit/xorg
250 (or a full clean/non-update build).
251
252 20211112:
253 Device tree sources were updated for evbarm. Some device nodes
254 (in particular, ld(4) devices on the ROCKPro64) will be renumbered.
255
256 20211014:
257 MKPIE default for aarch64 has changed, a clean build is required.
258
259 20210917:
260 Changed MNT_ACLS to default to POSIX1e ACLs instead of NFSv4
261 ACLs, to be compatible with FreeBSD. If you are using NFSv4 ACLs
262 and have "acls" in /etc/fstab you'll need to change it to "nfs4acls".
263
264 20210711:
265 Updated GMP sources may require cleaning in tools/gmp and/or in
266 external/lgpl3/gmp/lib, particularly if GCC itself does not build.
267
268 20210417:
269 GCC 10 was enabled for several platforms. If builds fail in either
270 tools/gcc or external/gpl3/gcc, first try cleaning those objects and
271 removing the $DESTDIR/usr/include/g++ subdirectory.
272
273 20201016:
274 MIPS kernel modules have been disabled until they work. This will
275 turn up in extra files in the DESTDIR, which should be cleaned.
276
277 20200925:
278 GNU MPC and MPFR have been updated. At least MPFR needs cleaning
279 in both the tools and external dirs.
280
281 20200912:
282 GCC 9 has arrived for Arm and x86 platforms, and will be coming
283 for several more, as will binutils 2.34. Clean as required.
284
285 20200907:
286 GCC 9 is coming, and binutils has been updated for MIPS. This
287 probably requires cleaning the tools/binutils.
288
289 20200811:
290 GCC updates may require cleaning the objdir. This may occur
291 due to GCC 7.5 update, GCC 8.4 move to gcc.old, or the upcoming
292 GCC 9 upgrade.
293
294 20200614:
295 blacklist* has been renamed to blocklist*. postinstall(8)
296 should handle the migration.
297
298 20200601:
299 Due to a mistake in LIBISPRIVATE handling, .so libraries were
300 created in the build directories and need cleaning.
301
302 20200311:
303 GCC 8 ports will need cleaning in src/tools/gcc and
304 src/external/gpl3/gcc due to GCC 8.4 update.
305
306 20191118:
307 More architectures were switched to gcc8:
308 i386, ia64 powerpc64, sparc, sparc64, arm
309 The same comments as in 20191022 apply.
310
311 20191112:
312 The LLVM update requires a clean rebuild for all architectures using
313 LLVM during the tools build phase (i386, amd64, aarch64).
314
315 20191022:
316 Ports amd64 and aarch64 switched to GCC 8.3 by default.
317 In-place ("expert mode", build.sh -E) builds are not supported
318 when going from a GCC 7 userland to GCC 8. Do a regular
319 build to a different DESTDIR (or preferably: build.sh -U) at least
320 once and install sets, or download comp.{tar.xz,tgz} from the
321 daily builds and install that before doing the next in-place build.
322
323 20191001:
324 GCC 8.3 was imported. Builds of src/tools/gcc may fail if
325 old builds with GCC 7 output now uses GCC 8. Clean this
326 directory, and also clean src/external/gpl3/gcc.
327
328 20190903:
329 Files with names that coincide with existing files' names on
330 case-insensitive file systems were inadvertently committed, for
331 radeon GPU firmware. We cannot mark these as obsolete for
332 postinstall to fix, so if you updated src since 2019-08-26, and
333 ran build.sh distribution or ran build.sh release, you must
334 manually delete the following files in your DESTDIR (which is
335 usually $OBJDIR/destir.$ARCH), or from / if you have installed
336 them:
337
338 /libdata/firmware/radeon/bonaire_ce.bin
339 /libdata/firmware/radeon/bonaire_mc.bin
340 /libdata/firmware/radeon/bonaire_me.bin
341 /libdata/firmware/radeon/bonaire_mec.bin
342 /libdata/firmware/radeon/bonaire_pfp.bin
343 /libdata/firmware/radeon/bonaire_rlc.bin
344 /libdata/firmware/radeon/bonaire_sdma.bin
345 /libdata/firmware/radeon/bonaire_smc.bin
346 /libdata/firmware/radeon/bonaire_uvd.bin
347 /libdata/firmware/radeon/hainan_ce.bin
348 /libdata/firmware/radeon/hainan_mc.bin
349 /libdata/firmware/radeon/hainan_me.bin
350 /libdata/firmware/radeon/hainan_pfp.bin
351 /libdata/firmware/radeon/hainan_rlc.bin
352 /libdata/firmware/radeon/hainan_smc.bin
353 /libdata/firmware/radeon/hawaii_ce.bin
354 /libdata/firmware/radeon/hawaii_mc.bin
355 /libdata/firmware/radeon/hawaii_me.bin
356 /libdata/firmware/radeon/hawaii_mec.bin
357 /libdata/firmware/radeon/hawaii_pfp.bin
358 /libdata/firmware/radeon/hawaii_rlc.bin
359 /libdata/firmware/radeon/hawaii_sdma.bin
360 /libdata/firmware/radeon/hawaii_smc.bin
361 /libdata/firmware/radeon/kabini_ce.bin
362 /libdata/firmware/radeon/kabini_me.bin
363 /libdata/firmware/radeon/kabini_mec.bin
364 /libdata/firmware/radeon/kabini_pfp.bin
365 /libdata/firmware/radeon/kabini_rlc.bin
366 /libdata/firmware/radeon/kabini_sdma.bin
367 /libdata/firmware/radeon/kaveri_ce.bin
368 /libdata/firmware/radeon/kaveri_me.bin
369 /libdata/firmware/radeon/kaveri_mec.bin
370 /libdata/firmware/radeon/kaveri_mec2.bin
371 /libdata/firmware/radeon/kaveri_pfp.bin
372 /libdata/firmware/radeon/kaveri_rlc.bin
373 /libdata/firmware/radeon/kaveri_sdma.bin
374 /libdata/firmware/radeon/mullins_ce.bin
375 /libdata/firmware/radeon/mullins_me.bin
376 /libdata/firmware/radeon/mullins_mec.bin
377 /libdata/firmware/radeon/mullins_pfp.bin
378 /libdata/firmware/radeon/mullins_rlc.bin
379 /libdata/firmware/radeon/mullins_sdma.bin
380 /libdata/firmware/radeon/oland_ce.bin
381 /libdata/firmware/radeon/oland_mc.bin
382 /libdata/firmware/radeon/oland_me.bin
383 /libdata/firmware/radeon/oland_pfp.bin
384 /libdata/firmware/radeon/oland_rlc.bin
385 /libdata/firmware/radeon/oland_smc.bin
386 /libdata/firmware/radeon/pitcairn_ce.bin
387 /libdata/firmware/radeon/pitcairn_mc.bin
388 /libdata/firmware/radeon/pitcairn_me.bin
389 /libdata/firmware/radeon/pitcairn_pfp.bin
390 /libdata/firmware/radeon/pitcairn_rlc.bin
391 /libdata/firmware/radeon/pitcairn_smc.bin
392 /libdata/firmware/radeon/tahiti_ce.bin
393 /libdata/firmware/radeon/tahiti_mc.bin
394 /libdata/firmware/radeon/tahiti_me.bin
395 /libdata/firmware/radeon/tahiti_pfp.bin
396 /libdata/firmware/radeon/tahiti_rlc.bin
397 /libdata/firmware/radeon/tahiti_smc.bin
398 /libdata/firmware/radeon/verde_ce.bin
399 /libdata/firmware/radeon/verde_mc.bin
400 /libdata/firmware/radeon/verde_me.bin
401 /libdata/firmware/radeon/verde_pfp.bin
402 /libdata/firmware/radeon/verde_rlc.bin
403 /libdata/firmware/radeon/verde_smc.bin
404
405 We will re-import these radeon firmware images another way
406 later.
407
408 20190727:
409 The uefi bootloader has gained tftp support and needs a clean
410 build. If you do update builds, manually clean its object
411 directory by something like:
412 cd sys/arch/i386/stand/efiboot && make clean
413
414 20190723:
415 The jemalloc allocator in libc is now built without extended
416 debugging (for performance reasons). In update builds make sure
417 to rebuild it completely, by removing all affected object files,
418 including compat builds, something like:
419 cd /usr/obj && find . -type d -name jemalloc|xargs rm -rf
420
421 20190207:
422 GCC 7 switched for many ports. Update builds are likely to fail.
423
424 Hints for a more successful build:
425 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
426 Use build.sh, but do not use its "expert mode":
427 This will automatically build the tools in the
428 correct order, and it will keep the tools and the
429 new build products from interfering with the running
430 system. This will allow you to ignore most of the
431 other advice in this file.
432 Build a new kernel first:
433 This makes sure that any new system calls or features
434 expected by the new userland will be present. This
435 helps to avoid critical errors when upgrading.
436 Use object directories:
437 This helps to keep stale object
438 files from polluting the build if a Makefile "forgets"
439 about one. It also makes it easier to clean up after
440 a build. It's also necessary if you want to use the
441 same source tree for multiple machines.
442 To use object directories with build.sh:
443 a) invoke build.sh with the "-M" or "-O" options.
444 To use object directories without using build.sh:
445 a) cd /usr/src ; make cleandir
446 b) Add "OBJMACHINE=yes" to /etc/mk.conf
447 c) Add "MKOBJDIRS=yes" to /etc/mk.conf
448 d) cd /usr/src ; make build
449 Note that running "make obj" in a directory will create
450 in obj.$MACHINE directory.
451 Build to a DESTDIR:
452 This helps to keep old installed files (especially libraries)
453 from interfering with the new build.
454 To build to a DESTDIR with build.sh, use the "-D" option.
455 To build to a DESTDIR without using build.sh, set the DESTDIR
456 environment variable before running make build. It should be
457 set to the pathname of an initially empty directory.
458 Problems: if you do not use build.sh, you might need to
459 update critical utilities without using DESTDIR since
460 nothing is executed from what is installed in DESTDIR.
461 (See critical utils, below.)
462 Build often:
463 This keeps critical utilities current enough to not choke
464 on any other part of the source tree that depends on up to
465 date functionality. If you use build.sh, you should not have
466 this problem.
467
468 What to do if things don't work:
469 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
470 When things don't work there are usually a few things that commonly
471 should be done.
472 1) make includes
473 This should be done automatically by make build.
474 2) cd share/mk && make install
475 Again, automatically done by make build.
476
477 Failsafe rebuild of a small part of the tree:
478 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
479 To make sure you rebuild something correctly you want to do
480 something like the following:
481 1) Make sure the includes and .mk files are up to date.
482 2) Make sure any program used to build the particular
483 utility is up to date. (yacc, lex, etc...)
484 3) cd ...path/to/util...
485 make cleandir
486 rm ...all obj directories...
487 make cleandir # yes, again
488 make obj
489 make depend && make
490
491 Failsafe rebuild of the entire tree:
492 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
493 If you really want to make sure the source tree is clean and
494 ready for a build try the following. Note that sourcing /etc/mk.conf
495 (a make(1) Makefile) in this manner is not right, and will not work
496 for anyone who uses any make(1) features in /etc/mk.conf.
497
498 ---cut here---
499 #!/bin/sh
500 . /etc/mk.conf
501
502 if [ -z $NETBSDSRCDIR ] ; then
503 NETBSDSRCDIR=/usr/src
504 fi
505 if [ \! -d $NETBSDSRCDIR ] ; then
506 echo Unable to find sources
507 exit 1
508 fi
509 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
510
511 if [ -z $BSDOBJDIR ] ; then
512 BSDOBJDIR=/usr/obj
513 fi
514 if [ -d $BSDOBJDIR ] ; then
515 rm -rf $BSDOBJDIR
516 fi
517
518 cd $NETBSDSRCDIR && make cleandir
519
520 ---cut here---
521
522 Critical utilities:
523 ^^^^^^^^^^^^^^^^^^^
524 usr.bin/make
525 usr.bin/yacc
526 usr.bin/lex
527 usr.bin/xlint
528 usr.bin/config
529
530 Other problems and possible solutions:
531 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
532 Symptom:Complaints involving a Makefile.
533 Fix: Rebuild usr.bin/make:
534 cd usr.bin/make && make && make install
535 Or, a failsafe method if that doesn't work:
536 cd usr.bin/make && cc -DMAKE_NATIVE *.c -I. -o make \
537 && install make /usr/bin
538
539 Fix: Make sure .mk files are up to date.
540 cd share/mk && make install
541
542 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
543 Fix: Rebuild usr.bin/config
544
545 Symptom:Obsolete intermediate files are used during compilation
546 Fix: Try the following sequence of commands in the directory in question.
547 make cleandir; rm `make print-objdir`; make cleandir; make obj
548 (If you built the tree without "make obj" in the past, obsolete files
549 may remain. The command tries to clean everything up)
550
551 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible
552 pointer type
553 Fix: Rebuild and install usr.bin/menuc
554
555 Symptom:mklocale not found during build in share/locale/ctype
556 Fix: Build and install usr.bin/mklocale
557
558 Symptom:undefined reference to `__assert13' or `__unsetenv13'
559 Fix: Rebuild and install lib/libc
560
561 Symptom:usr.bin/config fails to build.
562 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
563
564 Symptom:undefined reference to `getprogname' or `setprogname'
565 Fix: Rebuild and install lib/libc
566
567 Symptom:Update build fails in src/tools/gcc complaining that a variable
568 (e.g. CPPFLAGS) has changed since the previous run.
569 Fix: Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build.
570
571 Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...:
572 No such file or directory.
573 Cause: If a directory is created by mistake, then it is sometimes
574 deleted from the CVS repository using administrative commands
575 that bypass the normal cvs access controls. If your cvs working tree
576 contains references to a directory that has been deleted on the
577 server in this way, then "cvs update" reports this error.
578 Fix: Recursively delete the affected directory from your working tree
579 and try the update again.
580