Don't attempt to extract EA in 'restore -N' mode.
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.307 2010/03/08 10:40:52 stelian Exp $
2
3 Changes between versions 0.4b42 and 0.4b43 (released ?????????????)
4 ===================================================================
5
6 1. Fix a bug in dump making impossible to handle large toc files
7 (> 2 GB). Thanks to X DUGi <xdugi@users.sourceforge.net> for
8 reporting the bug (Sourceforge bug #2820629)
9
10 2. Fix 'restore -x' in multi-volume mode, which caused files being
11 spanned on the first and second volumes to be incorrectly extracted.
12 Thanks to Adam Tkac <atkac@redhat.com> for reporting the bug.
13 (there may be several bug reports about this issue, including
14 Sourceforge bug #2117008, RedHat bugs #232415 and #444958).
15
16 3. Remove -lselinux -lsepol from the standard libraries list,
17 they shouldn't be needed if selinux is not enabled in dump
18 (this also fixes a build failure when selinux libraries are
19 not installed).
20
21 4. Fix restoration of extended attributes of fifos and device nodes.
22 Thanks to Igor Zhbanov <izh1979@gmail.com> for the bug report.
23
24 5. Don't attempt to set extended attributes on files that were not
25 extracted in 'restore -N' mode. Thanks to Jan Görig
26 <jgorig@users.sourceforge.net> for the patch.
27
28 Changes between versions 0.4b41 and 0.4b42 (released June 18, 2009)
29 ===================================================================
30
31 1. Fix printout of the 'Connection to' message in dump/restore.
32 Thanks to Dale Wiles <dwiles@users.sourceforge.net> for the
33 bug report and its fix.
34
35 2. Fix dump -w/-W output for filesystems having the last backup
36 level equal to 0. Thanks to Pascal Bouchareine
37 <kalou@users.sourceforge.net> for reporting the bug.
38
39 3. Enable restore to handle restoring onto a different SELinux
40 policy from the dump. Thanks to Tony Nelson
41 <tony_nelson@users.sourceforge.net> for the patch.
42 (see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=189845
43 for details)
44
45 4. Fix EA set failures when restoring immutable files. Thanks
46 to Andrew Kroeger for the patch.
47
48 5. Fix "mode file too large" errors when restoring huge backups.
49 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
50 report.
51
52 6. Add the ability to link against libtinfo library if present,
53 instead of libtermcap or libncurses libraries. Thanks to
54 Adam Tkac <atkac@redhat.com> for the patch.
55
56 7. When comparing a backup, do not consider to be an error the fact
57 that we encounter files created while dump was in progress.
58 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
59 report.
60
61 8. Force '-a' to be the default value when running 'restore -C'.
62 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
63 report.
64
65 9. Many improvements to the 'cron_dump_to_disk' example.
66 Thanks to Aaron S. Hawley <ashawley@users.sourceforge.net> for
67 the patch.
68
69 10. Fix the QFA generation when extended attributes are backuped
70 along with the inodes. Prior to this fix, the entries for
71 some inodes may get corrupted (duplicated entries or incorrect
72 ones), making the QFA file unusable for repositionning in
73 restore. Many thanks to Kenneth Porter <shiva@sewingwitch.com>
74 for the bug report and the testing of the fix.
75
76 11. Fix EA restoration in debug mode (Sourceforge bug #1986216).
77
78 12. Stefan Auracher <star7@onlinehome.de> noticed that the Tower
79 of Hanoi backup strategy documented in the man page wasn't
80 actually based on the Tower of Hanoi algorithm. The man page
81 was updated accordingly.
82
83 13. Fix missing level information from dump output when using
84 the default level (RedHat bug #493635). Thanks to Adam Tkac
85 <atkac@redhat.com> for the patch.
86
87 14. Fix the dump man page to reflect the fact that the default
88 dump level is 0 not 9 (RedHat bug #356121). Thanks to Adam Tkac
89 <atkac@redhat.com> for the patch.
90
91 15. Fixed a few spelling errors in the man pages (RedHat bug #489853).
92 Thanks to Adam Tkac <atkac@redhat.com> for the patch.
93
94 16. Fixed restore man page and program usage which incorrectly stated
95 that -P and -A were both allowed in the same invocation (RedHat
96 bug #490627). Thanks to Adam Tkac <atkac@redhat.com> for the patch.
97
98 17. Use sys_clone under Linux to share I/O contexts between dump
99 processes, thus drastically increasing the performance of dump
100 under CFQ (which is the default I/O scheduler used in a number of
101 distributions). Thanks to Jeff Moyer <jmoyer@redhat.com> for the
102 patch.
103
104 18. Add (preliminary) ext4 support - thanks to libext2fs which does
105 all the job for us. Thanks to Gertjan van Wingerde
106 <gwingerde@gmail.com> for the patch.
107
108 Changes between versions 0.4b40 and 0.4b41 (released January 2, 2006)
109 =====================================================================
110
111 1. Fix restore of dumped Access Control Lists. The previous
112 code for EA works fine, but ACLs needed conversion from the
113 ext2/3 disk format to posix_acl format before restoring.
114
115 2. Fix some issues with restoration of EA on big endian
116 platforms.
117
118 3. Fix restore when the symtab is over 2GB in size.
119
120 4. Made the directory hash indexing an optional feature,
121 accessible by the '-H' option of restore, and disable it
122 by default.
123
124 5. Fixed dump to not include extended attributes information
125 in the toc (archive) file which confused restore -t.
126
127 Changes between versions 0.4b39 and 0.4b40 (released May 2, 2005)
128 =================================================================
129
130 1. Changed restore to emit warnings (instead of emitting a fatal
131 error) if a file (or a directory) is unavailable for a
132 comparision (if the user doesn't have the necessary permissions
133 to access it for example). Thanks to Kenneth Porter
134 <shiva@sewingwitch.com> for the bug report.
135
136 2. Re-done the 'do not save directory entries to non-dumped inodes
137 (excluded from dump)' feature. The previous implementation
138 worked well for excluded directories but not for regular files.
139 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
140 report.
141
142 3. Fixed a bug in dump where the tape size was miscalculated when
143 the user used -d/-s to specify the tape characteristics. Thanks
144 to Philip Goisman <goisman@physics.arizona.edu> for reporting
145 the bug.
146
147 4. Fixed another bug introduced in restore with the hashtree
148 implementation. This one caused restore to stop saying
149 "removenode: non-empty directory" in some cases.
150
151 5. Added support for dumping and restoring ext2/3 extended
152 attributes (EA), like the access control lists (ACL) or
153 the security labels used by SELinux.
154
155 Changes between versions 0.4b38 and 0.4b39 (released January 21, 2005)
156 ======================================================================
157
158 1. The newly added dump_on_cd_3 example was buggy, replace it
159 with an updated version from Andrew Basterfield
160 <bob@cemetery.homeunix.org>.
161
162 2. Made restore to chdir() back into the initial directory when
163 dumping core while aborting a comparision operation. The
164 previous behaviour was to write the corefile at the root of
165 the directory being compared, which could very well be
166 read only and preventing the corefile generation. Thanks
167 to Kenneth Porter <shiva@sewingwitch.com> for the bug report.
168
169 3. Silenced the failure to call fgetflags() when comparing an
170 entry which has no ext2 attributes (as in lsattr()).
171
172 4. Fix a brown paper bug in restore -C which broke restore and
173 caused modifications on the filesystem being compared
174 (directories containing a file with the same name as the
175 directory get renamed to RSTTMP...). Thanks to Kenneth Porter
176 <shiva@sewingwitch.com> for finding the bug and helping me
177 reproduce it.
178
179 5. Made restore -C force the -N flag (no writing allowed on
180 the disk) in order to prevent more bugs like the above one.
181
182 Changes between versions 0.4b37 and 0.4b38 (released January 7, 2005)
183 =====================================================================
184
185 1. Fix a couple of troff syntax bugs in the man pages.
186 Thanks to Eric Raymond <esr@thyrsus.com> for the patch.
187
188 2. Made restore use either libncurses or libtermcap, depending
189 on which one is available at configure time.
190
191 3. Fixed restore negative size display bug when comparing a
192 dump containing files over 2GB. Thanks to Steve Bonds
193 <sbonds@users.sourceforge.net> for the bug report.
194
195 4. Do not save directory entries to non-dumped inodes
196 (excluded from dump). This will eliminate the 'missing
197 file' warnings when doing 'restore -C'.
198
199 5. Fix dump crash when backuping a huge (2TB) filesystem,
200 due to a bogus calculation on the inode map size.
201 Thanks to Kevin B. Haines <K.B.Haines@rl.ac.uk> for
202 submitting the bug and testing the fix.
203
204 6. Fix a problem in restore where the final \0 in the symbolic
205 link names could have been lost, generating corrupt filenames.
206 Thanks to Kyle Wilson <kyle.wilson@amd.com> for reporting the
207 bug.
208
209 7. Implemented a hash list for the directory names in restore.
210 The linear list used before caused problems in interactive
211 restores when dealing with directories having thousands of
212 entries. Thanks to Brian Ristuccia <bristuccia@starentnetworks.com>
213 for reporting the bug.
214
215 8. Improved restore -C, this time including the directory
216 attributes into the comparision.
217
218 9. Made restore understand tapes containing EA/ACLs (which will
219 be dumped by the next version of dump). In this version
220 extended attributes on the tape are ignored, for full EA/ACL
221 support wait for the next version or try the experimental EA
222 patch.
223
224 Changes between versions 0.4b36 and 0.4b37 (released July 7, 2004)
225 ==================================================================
226
227 1. Added the --enable-staticz configure option which enables
228 dump and restore to be linked with static versions of
229 libz and libbz2 (and dynamic versions of all other libraries).
230 This will make Debian users happy, because libz and libbz2
231 were the only needed libraries living in /usr, all the
232 others live in /lib. In case of system emergency, it is
233 better not to have to rely on an extra filesystem.
234 Thanks to Bdale Garbee <bdale@gag.com> for the suggestion.
235
236 2. Fix compilation on (at least the Linux Debian port to) AMD64.
237 (<ext2fs/ext2_types.h> defines some types (__s64 and __u64)
238 that are also defined by <linux/types.h> (<asm/types.h>) and
239 they conflict).
240
241 3. Make dump's reading of the dumpdates file a bit more robust,
242 preventing dump from crashing when the dumpdates file has
243 been modified by hand.
244
245 4. Fixed some offset calculations in dump code which could
246 lead to "bread lseek errors" on large filesystems. Thanks
247 to Bruce Lowekamp <lowekamp@users.sourceforge.net> for
248 reporting this bug and debugging the issue.
249
250 5. Made dump use the blkid library when searching for devices
251 by label or uuid instead of dump's own routines.
252
253 6. Corrected a bug in dump where a wrong LABEL=... line in
254 /etc/fstab could prevent dump from dumping unrelated
255 filesystems. Thanks to Bruce Lowekamp
256 <lowekamp@users.sourceforge.net> for reporting the bug.
257
258 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
259 ====================================================================
260
261 1. Fixed dump compilation with old gcc versions. Thanks to
262 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
263
264 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
265 when compiling against a recent glibc version.
266
267 3. Fixed a bug in restore preventing the read of a dump tape
268 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
269 <phiggins@transzap.com> for reporting the bug and providing
270 the test case.
271
272 4. Changed dump to enable the creation of volumes of different
273 sizes in a single run (make -B accept a list of values).
274 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
275
276 5. Use the glibc provided minor() and major() macros instead
277 of our own bitmask implementation. This should be safe for
278 when the major/minor namespace will migrate to 32 bits.
279 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
280 the bug.
281
282 6. Made explicit in the dump man page that dump will not create
283 a remote file, it will only write to an already existing one.
284
285 7. Another try at making size estimates better again.
286
287 8. Put back the inconditional running of the end-of-tape
288 script which was changed in 0.434 to be run only when -M
289 or multiple -f were NOT specified. Some users rely on this
290 feature even when it is combined with -M/-f.
291
292 9. Fixed restore when restoring huge backups (where rstdir...
293 temporary files are over 2GB). Thanks to
294 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
295 debugging the issue and making the patch.
296
297 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
298 David <vrtin@users.sourceforge.net> for submitting the bug
299 and providing a test case.
300
301 11. Made dump work with an arbitrary integer level (no more 10
302 levels only limitation). Thanks to Matthew
303 <msvincen@midway.uchicago.edu> for the patch.
304
305 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
306 =======================================================================
307
308 1. Added a note in the dump man page saying that the default
309 blocksize can be 32 if -d is used with a high density argument.
310 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
311 for the patch.
312
313 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
314 LDFLAGS environment variables. Thanks to Arcady Genkin
315 <antipode@users.sourceforge.net> for reporting the bug.
316
317 3. Made -e/-E options of dump accept an unlimited number of inodes
318 to be excluded, rather than a hardcoded maximum. Thanks to
319 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
320
321 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
322 and -D_USE_BSD_SIGNAL defines in configure in order to solve
323 64bit build problems because quad_t is redifined with a
324 different signature. Thanks to Mike Harris <mharris@redhat.com>
325 for reporting this bug.
326
327 5. Made restore build on Solaris, making possible to
328 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
329 <uwe@ugsoft.de> for the patch.
330
331 6. Made an extension in the dump tape format capable of saving
332 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
333 wrote the extension and contributed the restore code back
334 into this codebase. The same extension mechanism will be
335 used in the future to save ACLs...
336
337 7. Made rmt work correctly with regard to QFA and local/remote
338 files and tapes. The remote access will however work only
339 when the dump provided rmt version is used. If you want to
340 use another rmt server, please do not use the QFA feature.
341 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
342
343 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
344 ====================================================================
345
346 1. Fixed the INSTALL file to reflect the actual install paths.
347 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
348 reporting the bug.
349
350 2. Fixed the configure script to only check for headers presence
351 instead of trying to compile them. This should fix issues
352 with old build environments. Thanks to Kari Lempiainen
353 <kari@funky.pp.fi> for reporting the bug.
354
355 3. Fixed restore to correctly ignore sockets when comparing
356 a dump (as socket cannot be properly restored anyway). Thanks
357 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
358
359 4. Fixed restore to correctly access the archive file (-A argument)
360 even when using a remote tape. Thanks to Fabrice Bellet
361 <fabrice@bellet.info> for reporting the bug.
362
363 5. Fixed (again) handling of long (largefile) seeks in rmt.
364 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
365 the bug.
366
367 6. Fixed restore corner case when dealing with large block sizes
368 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
369 <fabrice@bellet.info> for reporting the bug.
370
371 7. Fixed a bug preventing dump to access a filesystem having
372 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
373 for reporting the bug.
374
375 8. Made dump store dump dates using explicit timezones, fixing a
376 problem with incremental dumps if the timezone is modified
377 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
378 the bug report and the patch.
379
380 9. Fixed a bug encountered when dumping individual files (not full
381 filesystems or directories) and dangling symbolic links happen
382 to be in the list of files. For as far as dump is concerned,
383 dangling symbolic links are allowed, and are dumped as is.
384 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
385 bug and providing the fix.
386
387 10. Fixed open and creation modes and permissions for QFA and
388 table-of-contents files in dump and restore. Thanks to
389 Philippe Troin <phil@fifi.org> for the patch.
390
391 11. Fixed the archive file descriptor handling enabling it to be 0.
392 This can happen in some cases when shell redirections are used.
393 Thanks to Philippe Troin <phil@fifi.org> for the patch.
394
395 12. Delayed the opening of archive file until after suid had been
396 dropped (fixing a possible security issue if dump is suid).
397 Thanks to Philippe Troin <phil@fifi.org> for the patch.
398
399 13. Fixed the 'S' command handling in the rmt client part.
400 Thanks to Philippe Troin <phil@fifi.org> for the patch.
401
402 14. Modified the end-of-tape script handling to print out statistics
403 (and stop the timer) before launching the eot script. Also, the eot
404 script does not get run anymore when using -M (which makes sense) or
405 when multiple tapes are listed on the command line
406 (-f tape0,tape1,tapen) (which also makes sense).
407 Thanks to Philippe Troin <phil@fifi.org> for the patch.
408
409 15. Relicensed dump/restore under the 'revised' BSD license, as per
410 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
411
412 16. Added LZO compression to dump. This new compression method has
413 the advantage of being super fast, thus not killing tape streaming
414 on slow machines. Thanks to Helmut Jarausch
415 <jarausch@igpm.rwth-aachen.de> for the patch and to
416 Markus Oberhumer <markus@oberhumer.com> for giving special permission
417 to include his miniLZO project (GPL licensed) in dump/restore.
418
419 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
420 <ant@notatla.demon.co.uk> for reporting the bugs.
421
422 18. Added a special rmt version which can do encryption when writing
423 to tape. Read examples/encrypted_rmt/README for details on
424 how to enable and configure it. Thanks to Ken Lalonde
425 <ken@globalremit.com> for the patch.
426
427 19. Made dump work with 2.5 kernel end of tape early warning semantics.
428 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
429
430 20. Fixed a bug which caused dump -w|-W not to work anymore, because
431 the fs_freq and fs_passno fields in /etc/mtab are always set
432 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
433 reporting the bug.
434
435 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
436 =======================================================================
437
438 1. Added a note in the restore man page clarifying the question
439 'set the permissions on the current directory ?' asked by
440 restore at the end of treatment in -i and -x modes.
441
442 2. Fixed the endianess issues when reading compressed tapes.
443 Thanks to Dark Force <daq4th@users.sourceforge.net> for
444 reporting this bug and providing test cases.
445
446 3. Fixed the "ACL won't be dumped" warning message (which showed
447 an extra, unrelated error message). Thanks to Dragan Krnic
448 <dkrnic@lycos.com> for reporting this bug.
449
450 4. Made dump look first into /etc/mtab, then into /etc/fstab
451 when searching for filesystem paths. Also fixed some problems
452 caused by binding mounts or multiple block device mounts.
453 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
454 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
455 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
456 and #160305, Sourceforge bugs #618699 and #679832).
457
458 5. Made dump's -I option accept the value '0' meaning all the
459 read errors will be ignored. This can be useful when running
460 dump from unattended sessions (like cron jobs). Thanks to
461 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
462
463 6. Fixed the output of dump to indicate 'blocks' instead of
464 'tape blocks' in the various messages (blocks are always
465 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
466 made it clearly print the current blocksize at the start of
467 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
468 the suggestions.
469
470 7. Made rmt understand long (largefiles) seeks.
471
472 8. Fixed build with very old versions of libext2fs, where
473 EXT2_FT_* constants were undefined.
474
475 9. Made dump accept the dumpdates path on the command line
476 (-D file option) instead of using only the hardcoded one.
477 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
478 suggestion.
479
480 10. Enabled rmt, LFS, readline, QFA options by default in
481 ./configure. Updated the configure process (new versions
482 of config.guess, config.sub etc).
483
484 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
485 =======================================================================
486
487 1. Changed dump to use fcntl(F_SETLK) style locking instead
488 of flock() when locking the dumpdates file. With the old
489 locking scheme, a local user having read rights on the
490 dumpdates file could be able to do a Denial of Service attack
491 on dump. In order to lock the dumpdates file with the new
492 scheme, the user would need to have write access on the file.
493 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
494 reporting the bug (originally a bugtraq post).
495
496 2. Fixed interactive 'ls' which caused spurious errors warnings
497 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
498 <jorgen_ostling@users.sourceforge.net> for reporting this
499 bug.
500
501 3. Fixed dump's estimate when dealing with sparse inodes.
502
503 4. Modified dump to allow setting a blocksize bigger than 32kB
504 (raised the limit to 1024kB), because newer hardware needs
505 this for proper operation. Thanks to Dirk Traenapp
506 <dtraenapp@users.sourceforge.net> for reporting this.
507
508 5. Fixed a bug causing Dump to stop and report an error if an
509 inode number in the exclude file was followed by some amount
510 of whitespace. Thanks to Jeffrey Sofferin
511 <sofferin@users.sourceforge.net> for reporting this bug.
512
513 6. Fixed a bug which caused restore, in some particular cases,
514 to ask some 'scary' questions and leave a bunch of RSTTMP
515 directories behind when restoring incremental tapes. Thanks
516 to Philippe Troin <phil@fifi.org> for reporting this bug and
517 providing the test cases.
518
519 7. Changed the wording when inodes are excluded from dump:
520 replaced 'Added inode 7 to exclude list' with
521 'Excluding inode 7 (resize inode) from dump', as suggested
522 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
523
524 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
525 ===================================================================
526
527 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
528 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
529 <eros@lamel.bo.cnr.it> for reporting the bug.
530
531 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
532 ===================================================================
533
534 1. Made dump print out the ext2 logical block number in case of a read
535 error, which can be given as an argument to debugfs' ncheck command,
536 in order to find out the affected inode. Added note about this
537 usage in dump's man page.
538
539 2. Fixed a problem in restore when reading tapes written on big
540 endian machines with very old versions of dump. The patch was
541 contributed by George Helffrich <george@geology.bristol.ac.uk>.
542
543 3. Fixed the tape length calculation when using large tapes
544 and compression. Thanks to Georg Lippold
545 <g_lippold@sourceforge.net> for reporting the bug.
546
547 4. Added a new set of examples in dump_on_cd_2 directory, based
548 on dump_on_cd examples but somewhat enhanced, supporting DVD
549 media, and localized in english and german. Thanks to
550 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
551
552 5. Made dump save 32 bit UID/GID. Internally, this was achieved
553 by switching from the old BSD inode format to the new BSD
554 inode format, which means that the tape format was changed.
555 However, since all restore versions out there should
556 transparently support both inode formats, the change should
557 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
558 reporting the bug.
559
560 6. Fixed a lot of warnings in the code shown when compiling
561 with 'gcc -W'. Thanks to Matthias Andree
562 <matthias.andree@stud.uni-dortmund.de> for reporting this.
563
564 7. Fixed a small markup bug in the dump man page. Thanks to
565 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
566 patch.
567
568 8. Rewrote entirely the man pages using the tmac.an macro
569 package (Linux man page format) instead of the original BSD
570 format. They should be now cleaner and easier to modify.
571
572 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
573 ==================================================================
574
575 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
576 non Linux clients were misinterpreted. The description of the problem
577 (incompatible numbering in Linux mtio opcodes) is documented at
578 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
579 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
580 providing an excellent, cross-platform replacement for rmt in his
581 star package.
582
583 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
584 which caused restore to fail when the inode maps were not entirely
585 contained on the first volume (when using really small volumes or
586 when dumping a huge number of inodes).
587
588 3. Fixed a problem in dump, where files in subdirectories of directories
589 that have the nodump flag set (or being excluded with -e/-E) were
590 sometimes incorrectly dumped (instead of being excluded). The original
591 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
592 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
593 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
594 help testing the patch.
595
596 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
597 which makes one able to pipe the output of dump, by the net, to
598 a remote CD-burner server.
599
600 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
601 and use GNU's symbolic syntax over rmt instead of numerical values
602 to assure multiple platform compatibility.
603
604 6. Documented the -d option in restore.
605
606 7. Added a -v (verbose) mode to dump. For now it just prints the number
607 of the inode being dumped, but this could evolve in future versions
608 to include interesting debugging output.
609
610 8. Added a -o flag to restore, which automatically restores the current
611 directory permissions in -i or -x mode, without asking the operator
612 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
613 and Peter Samuel <peters@e-smith.com>.
614
615 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
616 ====================================================================
617
618 1. Fixed a bug in the QFA feature which could have caused
619 a bad tape positionning on restore (causing extra delays in
620 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
621
622 2. Added a small note in the dump man page specifying that
623 there should be no white space between the option letter and
624 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
625
626 3. Made restore work with older versions of the readline library,
627 by checking in configure for several extended symbols. Restore
628 can now be compiled with a readline as old as the 2.0 release
629 (though it may be a good idea to upgrade it to a more recent
630 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
631 reporting the build failures.
632
633 4. Fixed a performance problem with the QFA file creation in
634 dump, which made unnecessary seeks on the tape slowing down
635 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
636 reporting this issue.
637
638 5. Removed the inclusion of some kernel headers in the dump
639 source, which prevented the compile in some kernel/glibc
640 headers/architecture combination. Thanks to Bdale Garbee
641 <bdale@gag.com> for reporting the bug.
642
643 6. Added the appropriate error message when dump fails to
644 open the output file for writing. Thanks to Amith Varghese
645 <amithv@yahoo.com> for reporting this bug.
646
647 7. Made restore able to understand large Solaris ufsdump tapes
648 (containing inodes bigger than 4194304). Sun have introduced
649 an "extension" to the dump tape format when dealing with
650 those inodes, which was uncorrectly handled by Linux restore.
651 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
652 providing a test case.
653
654 8. Added the -m parameter to dump which optimises the output for
655 inodes having been changed but not modified since the last dump
656 ('changed' and 'modified' have the meaning defined in stat(2)).
657 For those inodes, dump will save only the metadata, instead of
658 saving the entire inode contents. Inodes which are either
659 directories or have been modified since the last dump are saved
660 in a regular way. Uses of this flag must be consistent, meaning
661 that either every dump in an incremental dump set have the flag,
662 or no one has it.
663
664 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
665 =======================================================================
666
667 1. Fixed behaviour of dump when exceeding resource limits
668 (SIGXFSZ treatment).
669
670 2. Added the -L flag to restore to allow the user to specify a
671 maximal allowed number of miscompares when using restore
672 with the -C option to check the backup.
673
674 3. Detailed the manual entry for the -N option of restore.
675
676 4. Added the -a flag to restore to make able doing unattended
677 restores in -i or -x mode (automatically walks through the
678 multiple dump volumes).
679
680 5. Extended the QFA mode to work with local files and/or
681 remote tapes and files. This way, restore can know in advance
682 the tape number and the offset for the inodes to extract and
683 can minimize the extraction time by seeking directly to the
684 good tape/offset.
685
686 6. Added the -A <archive> option to both dump and restore,
687 which makes dump to archive a dump table-of-contents in
688 the specified file to be used by restore to determine
689 whether a file is in the dump file that is being restored.
690 (the archive file syntax is also compatible with the
691 Solaris ufsdump generated one).
692
693 7. Small fix in restore making it able to read some (broken ?)
694 Solaris ufsdump tapes.
695
696 8. Fixed dump to correctly recognise the root filesystem when using
697 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
698 for reporting this bug.
699
700 9. Added the -P <file> option to restore to create a
701 Quick File Access file from an already made dump. Patch
702 contributed by Uwe Gohlke <uwe@ugsoft.de>.
703
704 10. Made restore compile and run on Solaris, making it a
705 possible replacement for the standard ufsrestore. Port was
706 contributed by Uwe Gohlke <uwe@ugsoft.de>.
707
708 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
709 =====================================================================
710
711 1. Added a set of backup scripts from Eugenio Diaz
712 <getnito@yahoo.com> in the examples section. It features
713 automatic (cron based) full and incremental dumping of
714 several filesystems on a separate filesystem.
715
716 2. Fixed a off-by-one miscalculation which disabled dumping
717 a one letter subdirectory. Thanks to Chris Siebenmann
718 <cks@utcc.utoronto.ca> for reporting the bug.
719
720 3. Fixed several restore bugs occuring when trying to
721 restore some missing files on the tape. Thanks to Chris
722 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
723
724 4. Fixed --with-ldopts configure argument passing, installing from
725 a separate object directory, makefile cleanups contributed
726 by <splite@purdue.edu>.
727
728 5. Fix a bug which could caused, in some conditions, the highest
729 number inode of a filesystem, to not be dumped. Many thanks
730 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
731 chase this bug.
732
733 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
734 =======================================================================
735
736 1. Added a mini howto from Patrick Walsh in the examples
737 directory.
738
739 2. Minor man pages syntax corrections. Thanks to
740 Chris Danis <screechco@home.com> for reporting the bugs.
741
742 3. Added a script from David B. Peterson <dave@toppledwagon.com>
743 to the examples section. It features dumping several
744 filesystems to a remote tape drive upon ssh.
745
746 4. Added a patch provided by Richard Jones <rich@annexia.org>
747 which allows BRADEMAX (number of read errors tolerated by
748 dump) to be adjusted using the -I option.
749
750 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
751 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
752 patch.
753
754 6. Add the -l option to restore to specify if, when doing a
755 remote restore, the file used to access the backup is a
756 regular file (the defaults being a tape drive). Restore needs
757 to know this information when reading a remote compressed
758 dump. Previously, this information was autodetected, but
759 the autodetection code fails (with ioctl: Inappropriate ioctl
760 for device) when using a non Linux remote box. Thanks to
761 many users and especially to Eros Albertazzi
762 <eros@lamel.bo.cnr.it> for reporting this.
763
764 7. Found a workaroung for the dump deadlock problem (3 childs
765 stuck in pause(), father in read()). The workaround seems
766 to work for me and several beta-testers. If it doesn't work
767 for you, please report back.
768
769 8. Updated the RPM spec file (BuildPrereq, URL etc).
770
771 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
772 ========================================================================
773
774 1. Fixed the permissions of a newly created QFA file by dump.
775
776 2. Cleaned up the source of dump (the external variables
777 definition was a complete mess, making possible to have
778 objects overlap).
779
780 3. Fixed restore to use the full tape volume path when doing
781 a compare (since it changes the working directory to the
782 filesystem being compared in the process).
783
784 4. Added the -q option to dump which makes dump abort
785 whenever it needs operator attention. It should be
786 easier to use dump in scripts with this option.
787
788 5. Detect the use of incompatible options to dump and
789 refuse them (like -a and -B options together).
790
791 6. Added bzip2 compression to dump/restore (use option -j level
792 to select it). Note that you will need a restore version
793 >= 0.4b24 in order to restore a bzip2 compressed dump.
794 The same warning as for the zlib compression applies:
795 the tape format of a bzip2 dump is not compatible with the
796 original BSD tape format.
797
798 7. Fixed a overflow problem in dump corrupting the dump when
799 very large files were encountered. Thanks to Vladimir Nadvornik
800 for the bug report.
801
802 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
803 kernel buffer/page cache before starting the dump, helping
804 a bit those who use dump on mounted filesystems. Thanks to
805 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
806 for this suggestion.
807
808 9. Updated the RPM spec file following the RedHat changes
809 (dynamically linked binaries now in /usr/sbin etc).
810
811 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
812 which enables restore to recognise multi volume compressed dumps
813 done on CD. Included his scripts for dump (which pipe the dump
814 output directly into cdrecord) and restore. There is now
815 possible to to backups to CD on the fly!
816
817 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
818 ===================================================================
819
820 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
821 Marcus Meissner (Caldera International Security Dept.).
822
823 2. Implement the Sun rmt extended protocol. Patch submitted
824 by Ian Gordon <iangordon@users.sourceforge.net>.
825
826 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
827 the linux kernel header. This ensures that dump always has the
828 latest version of this file. Patch submitted by
829 Andreas Dilger <adilger@turbolinux.com>.
830
831 4. Report any filesystem present in either /etc/fstab with a
832 positive passno or /etc/dumpdates in dump -w output.
833 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
834
835 5. Fixed the looping problem in dump introduced in the
836 previous version.
837
838 6. Changed the -B option of dump to limit the size of
839 _compressed_ output per volume if compression is on.
840 Patch contributed by Helmut Jarausch
841 <jarausch@igpm.rwth-aachen.de>. Note however that, since
842 it is impossible to predict the size of the compressed
843 data before doing the compression, the -B limit is a bit
844 conservative.
845
846 7. Fixed a bug in reading the operator typed file/tape path for
847 the next volume in restore.
848
849 8. Implemented a "-F script" option to restore which permits the
850 user to specify a script which will be launched at the
851 beginning of each tape, useful for automatic programming of
852 tape changers for example. See the restore man page for the
853 script parameters and return codes.
854
855 9. Small fix for the QFA routines provided by Uwe Gohlke
856 <uwe@ugsoft.de>, and some recommendations for QFA uses in
857 the man pages.
858
859 10. Fixed the multivolume restoring where making a mistake
860 to the 'Mount next tape' prompt caused several blocks to
861 be lost.
862
863 11. Enhanced the -e option of dump to take as a parameter a
864 comma separated list of inode numbers.
865
866 12. Added the -E option to dump which specify a file containing
867 inode numbers to exclude from the dump.
868
869 13. Fixed the compressed multi-volume dump + restore.
870
871 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
872 ==================================================================
873
874 1. Made dump report the number of blocks dumped per volume.
875 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
876
877 2. Fix a bug in dump where waiting too much at the 'change volumes'
878 question caused the volume to be rewritten. Thanks to
879 Graham Reed <greed@users.sourceforge.net> for reporting the
880 bug and providing a patch.
881
882 3. Added a compression option to dump, contributed by Jerry
883 Peters <gapeters@worldnet.att.net>.
884
885 WARNING: the compression works only on files/pipes and
886 drives supporting variable block size.
887
888 WARNING2: tapes created using the compression feature are
889 incompatible with the standard dump tape format, and a
890 version of restore >= 0.4b22 will be needed for extraction.
891
892 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
893 architectures. Thanks to Paul Slootman <paul@debian.org> for
894 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
895 it upstream.
896
897 5. Many cleanups (CPP defines, const char warnings, check of
898 ext2fs COMPAT flags, time_t cleanups, added libext2 version
899 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
900
901 6. Made --prefix option work in configure. All the install path
902 are now based on the configure parameters.
903
904 7. Added the Quick File Access mode in dump/restore, contributed
905 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
906 a file tape position for each inode, and this file is used by
907 restore (if called with parameter Q and the filename)
908 to directly position the tape at the file restore is currently
909 working on. This saves hours when restoring single files from
910 large backups, saves the tapes and the drive's head. Use
911 --enable-qfa option of configure to compile in the QFA support.
912
913 8. Added the possibility to dump several files and directories
914 in a single invocation of dump. Thanks to Uwe Gohlke
915 <uwe@ugsoft.de> for implementing this option.
916
917 9. Fixed the dumping and restoring of files with holes
918 (files ending with holes didn't get dumped or restored
919 correctly).
920
921 10. Fixed a socket descriptor leak in dump, which leaved opened
922 3 file descriptors per dump process (and there is one dump
923 process per tape).
924
925 11. Fixed dump large file system support, by explicit use of
926 open64/lseek64/etc functions (explicit use needed because
927 e2fsprogs libraries don't behave well when compiled with
928 FILE_OFFSET_BITS=64).
929
930 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
931 ======================================================================
932
933 1. Fixed some bugs in the dump -w|-W logic introduced by
934 the previous version. Thanks to Andreas Dilger
935 <adilger@turbolinux.com> for his help on this one.
936
937 2. Fixed again a compilation problem when using old e2fs
938 headers (filesystem label related). Thanks to many users
939 who reported this stupid error.
940
941 3. Fixed a build problem on old lib5 based systems dealing with
942 _PATH_MNTTAB being undefined. Thanks to John Adams
943 <johna@onevista.com> for reporting the bug.
944
945 4. Improved the error detection in restore when creating
946 the temporary files in TMPDIR. Now restore will corectly
947 report a 'no space left on device' error instead of
948 strange errors which could imply an archive corruption.
949 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
950 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
951
952 5. Added the throughput information in dump's progression
953 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
954 for the patch.
955
956 6. Use libext2fs's inode scanning routines, which are particularly
957 robust when dealing with errors (especially when having some
958 bad blocks on the filesystem). Many thanks to Colin
959 <colin@horizon.com> for reporting the bug, investigating
960 the issues, finding a workaround, writing the patch and
961 fully testing it... (of course, if this patch will break
962 anything, he is to blame for :-)).
963
964 7. Made dump and restore LFS aware. Dump can dump a filesystem
965 containing large files, generate a large file on output and
966 restore can restore them. This feature is not enabled by
967 default, use --enable-largefile option of configure to enable
968 it (you need to have a LFS aware glibc though). Thanks to
969 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
970 and to Theodore T'so <tytso@valinux.com> for his always
971 useful thoughts.
972
973 8. Made dump ask upon a tape write error if it should rewrite
974 the current volume (assume this is a bad tape) or if it should
975 assume an end-of-tape condition (useful for tape drives which
976 behaves badly at the end of the tape). Thanks to Andreas
977 Dilger <adilger@turbolinux.com> for the suggestion.
978
979 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
980 =======================================================================
981
982 1. Fixed a small compilation problem due to a change
983 in the definintion of the struct sigaction in
984 glibc 2.0 / libc5. Thanks to Gunther Schlegel
985 <schlegel@riege.de> for reporting the bug and to
986 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
987 a fix.
988
989 2. Modified the label and uuid analysis in order to be
990 self-contained (independant of kernel/libc headers). This
991 should fix the compile with older kernel/libc headers and
992 will preserve the functionality. Thanks to Bernhard Erdmann
993 <bernhard.erdmann@gmx.de> for reporting the bug.
994
995 3. The 'exclude inode' option, if applied to a directory
996 inode, excludes now correctly all the leaves of this
997 directory. Thanks to John R. Dennison
998 <gerdesas@users.sourceforge.net> for reporting the bug.
999
1000 4. Fixed the '-e' option to disable the possibility
1001 to exclude the root inode (which causes the dumps to
1002 be unreadable by restore). Prevented array overflow
1003 when multiple -e options are used.
1004
1005 5. Fixed dump to correctly interpret a filesystem argument
1006 which is a mountpoint and it is not an absolute path
1007 (as specified in the fstab). Thanks to Bernhard R. Erdmann
1008 <be@berdmann.de> for reporting the bug.
1009
1010 6. Made dump able to backup files larger than 2 GB. Note that
1011 dump still doesn't cope with files larger than 4 GB.
1012
1013 7. Restore the real uid and gid before invoking an external
1014 RSH program (big hole when dump or restore is suid root!).
1015
1016 8. Get the values for the default tape device and the location
1017 of fstab file from the system headers. Thanks to
1018 Andreas Dilger <adilger@turbolinux.com> for the patch.
1019
1020 9. Made dump -w|-W report all recognized filesystems
1021 present in either /etc/fstab or /etc/dumpdates, and present
1022 the list in the same order as in fstab file. Thanks
1023 to Andreas Dilger <adilger@turbolinux.com> for the patch.
1024
1025 10. Made dump's -a (automatic end of tape detection) the
1026 default. Specifying one of -B, -c, -d or -s options will
1027 override the EOM detection. Thanks to Andreas Dilger
1028 <adilger@turbolinux.com> for the patch.
1029
1030 11. Save the ext2 filesystem label into the dump volume label.
1031 Specifying a volume label on the command line (-L option)
1032 will override this feature. Thanks to Andreas Dilger
1033 <adilger@turbolinux.com> for the patch.
1034
1035 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
1036 =====================================================================
1037
1038 1. Fixed the signal handling in dump (which I broke in 0.4b17)
1039 which was causing several strange dump failures (dump
1040 hanged or segmentation faults etc).
1041
1042 2. Specified the default blocksize in the dump man page.
1043
1044 3. Changed two info messages of restore to be written on stdout
1045 instead of stderr in order to leave stderr only for errors
1046 or warnings. Thanks to Stephen Atwell
1047 <satwell@urbana.css.mot.com> for the suggestion.
1048
1049 4. Corrected an off by one calculation which prevented
1050 dumping a directory having a 1 character name length.
1051 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
1052 for reporting the bug.
1053
1054 5. Reinforce dump in order to allow only level 0 and no
1055 -u option when dumping a subdirectory, and document
1056 this in the man page. Thanks to Bernhard Erdmann
1057 <bernhard.erdmann@gmx.de> for reporting the bug.
1058
1059 6. Fixed a small harmless bug in restore which caused
1060 in some conditions hard links to be restored several
1061 times (therefore generation some warning messages).
1062 Thanks to Kenneth Porter <shiva@well.com> for
1063 reporting the bug.
1064
1065 7. Updated the RPM spec file to the latest RedHat version,
1066 providing FHS packaging and other cosmetic changes.
1067 You will need RPM version >= 3.0.5 in order to build the RPM.
1068
1069 8. Updated the configure script to check for libtermcap
1070 before checking for libreadline, because we need this
1071 library in order to compile the readline support.
1072
1073 9. Made dump understand the LABEL= and UUID= notation
1074 both in /etc/fstab and on the command line. Note that
1075 you will need the /proc filesystem in order to use
1076 these notations. Thanks to Erik Troan <ewt@redhat.com>
1077 for providing the patch.
1078
1079 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
1080 ===================================================================
1081
1082 1. Fixed a potential buffer overflow in restore. Thanks
1083 to Stan Bubrouski <satan@fastdial.net> for reporting
1084 the bug.
1085
1086 2. Fixed a readline-related bug which prevented
1087 'cat DUMPFILE | restore -i -f -' from working. Thanks
1088 to Charles Karney <karney@users.sourceforge.net>
1089 for the bug report.
1090
1091 3. Changed a few "panic" into "exit", causing restore to
1092 be more stable against some attacks (like the last one
1093 reported on Bugtraq, although the last version of restore
1094 was not vulnerable - just dumped core). Thanks to
1095 Andreas Hasenack <andreas@conectiva.com.br> for reporting
1096 the bugs to me.
1097
1098 4. Removed the suid-root bit on dump and restore in the
1099 default build (and generated RPMs). It should be safer
1100 now. Users who need the suid-root capabilities in order
1101 to make network backups should read first the man page
1102 of dump and enable the suid bit manually.
1103
1104 5. Added -ltermcap to the compile parameters for restore
1105 when using readline support, in order to make the compile
1106 process work on some systems (SuSE ?). Thanks to
1107 Patrik Schindler <poc@pocnet.net> for reporting the bug.
1108
1109 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
1110 ====================================================================
1111
1112 1. The -F script is called now *only* at the end of a tape,
1113 not at the end of the dump. Thanks to Christian Haul
1114 <haul@informatik.tu-darmstadt.de> for the bug report.
1115
1116 Normally, the device name and the current volume number
1117 are passed on the command line of the script. However,
1118 if you want the old style script (with no arguments
1119 passed on the command line), you can enable it in
1120 configure with the --enable-oldstylefscript.
1121
1122 2. Use posix signal handling to preserve dump functionality
1123 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
1124 the patch.
1125
1126 3. Made the exit code of restore in case of a 'C'ompare
1127 command reflect the result of the compare. An exit status
1128 of 0 means the dump archive is correct, 1 means tape errors,
1129 2 means that some files were modified. Thanks to Kenneth Porter
1130 <shiva@well.com> for the suggestion.
1131
1132 4. Made (finally) quotes work in interactive restore.
1133
1134 5. Small fixes in order to allow dump to compile with a
1135 really old e2fsprogs version. Thanks to Ian Zimmerman
1136 <itz@speakeasy.org> for the bug report.
1137
1138 6. Add GNU readline capabilities to interactive restore.
1139 Use configure's --enable-readline flag to enable this feature.
1140 Thanks to Patrik Schindler <poc@pocnet.net> for the
1141 suggestion.
1142
1143 7. Do the compare on the fly in restore 'C' mode (this will
1144 allow not to exhaust the available /tmp space when
1145 ccmparing large files). Thanks to Kenneth Porter
1146 <shiva@well.com> for the suggestion.
1147
1148 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
1149 ====================================================================
1150
1151 1. Fixed some several duplicate 'DUMP: DUMP:' in the
1152 output of dump.
1153
1154 2. Corrected the estimation of blocks to dump. Note that
1155 this is still wrong for large directory inodes, due
1156 to the size of a BSD directory entry on the tape
1157 (estimation is based on the size of the ext2 directory,
1158 which is smaller because it doesn't contain the null
1159 character at the end).
1160
1161 3. Made dump report the total number of MB written to
1162 tape at the end of run. Thanks to W. Reilly Cooley
1163 <wcooley@nakedape.cc> for the patch.
1164
1165 4. Added the -X option to restore giving the possibility
1166 to read the names of the files to be extracted/listed
1167 from a text file (in addition of the command line).
1168 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
1169 patch.
1170
1171 5. Added the device name and the current volume number
1172 as arguments to the end of tape script (dump -F option).
1173
1174 6. Made the multi-volume dump work again (after having
1175 broken it in 0.4b15).
1176
1177 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
1178 ===================================================================
1179
1180 1. Added a prompt command in interactive restore mode. Thanks
1181 to Andreas Dilger <adilger@home.com> for the patch.
1182
1183 2. Fixed a buffer overflow problem in dump (caused by
1184 not checking the size of the filesystem parameter).
1185 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
1186 reporting this on Bugtraq (and to several dump users
1187 who forwarded me his mail).
1188
1189 3. Added the '-F script' option to dump in order to
1190 launch a script at the end of each tape (to be used
1191 with a tape changer, or to notify the sysadmin by
1192 pager etc.).
1193
1194 4. Fixed a bug in restore compare code caused by the changes
1195 I made in 0.4b14.
1196
1197 5. Fixed the treatment of options using the old BSD syntax
1198 in both dump and restore.
1199
1200 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
1201 =======================================================================
1202
1203 1. Fixed a bug in dump which may have caused invalid deleted
1204 directories to be dumped out if they were deleted after the
1205 mapping pass. This could occure on active filesystem and lead
1206 to heap corruption (causing dump malfunction in many possible ways).
1207 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
1208 bug and submitting the patch.
1209
1210 2. Fixed the handling of the filesystem parameter in dump. A
1211 '/mnt/disk' parameter caused the disk contents to be dumped,
1212 but a '/mnt/disk/' parameter caused the mountpoint directory
1213 to be dumped (generally an empty directory).
1214
1215 3. Improved the output of dump in order to tell which directory
1216 it is currently dumping (when dumping a subtree).
1217
1218 4. Added the '-e' exclude inode option to dump. Thanks to
1219 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
1220
1221 5. Added a REPORTING-BUGS file in order to provide a guide
1222 on how to correctly report a bug in dump/restore.
1223
1224 6. Fixed a restore problem when restoring a hard link to an inode
1225 having the immutable or append-only attribute set. Thanks to
1226 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
1227
1228 7. Fixed a compatibility problem between dumps made on little
1229 endian machines (the format was correct) and big endian
1230 machines (the format was incorrect). This fix break the
1231 compatibility with the older dumps made on big endian
1232 machines (sparc, m86k, ppc etc). For the first time in
1233 linux dump's history (I believe), the dumps made by *BSD,
1234 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
1235 so interchangeable. Thanks to Rob Cermak
1236 <cermak@ahab.rutgers.edu> for submitting the bug and
1237 helping me test the fix.
1238
1239 8. Fixed the way dump reports the remaining percent/time, if
1240 the number of blocks actually dumped exceeds the estimated
1241 number of blocks. Thanks to Jean-Paul van der Jagt
1242 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
1243
1244 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
1245 ======================================================================
1246
1247 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
1248 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
1249
1250 2. Removed the requirement to build the RPM as root from the
1251 spec file. Thanks to Christian Weisgerber
1252 <naddy@mips.rhein-neckar.de> for submitting this.
1253
1254 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1255 causing dump to block when dumping really huge filesystems.
1256 Many thanks to Patrik Schindler <poc@pocnet.net> for
1257 helping me find this bug.
1258
1259 4. Fixed the treatment for an interrupt signal when dump access
1260 the remote tape through RSH. Thanks to Christian Weisgerber
1261 <naddy@mips.rhein-neckar.de> for providing the patch.
1262
1263 5. Fixed a bug which was causing dump/restore to display
1264 garbage characters instead of the remote host name.
1265
1266 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1267 =====================================================================
1268
1269 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1270 <kukuk@suse.de> for submitting the patch.
1271
1272 2. Fix for the exit code when using the size estimate option of
1273 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1274 submitting the patch.
1275
1276 3. Handle EINTR in atomical reads/writes in dump, which was causing
1277 dump to fail on some systems. Thanks to Eric Jergensen
1278 <eric@dvns.com> for reporting the bug and submitting the patch.
1279
1280 4. Handle more than 16 characters for the device names in dumpdates.
1281 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1282 tracking down the problem and proposing the solution.
1283
1284 5. Fixed a bug in dump which prevented the creation of the
1285 dumpdates file when doing a 0-level dump without already
1286 having a dumpdates file. Thanks to Patrik Schindler
1287 <poc@pocnet.net> for reporting the bug.
1288
1289 6. Changed the way dump 'S' flag reports the size estimate
1290 from number of blocks into bytes (making it compatible
1291 with the Solaris version, and simplifying things for
1292 amanda users). Thanks to Jason L Tibbitts III
1293 <tibbs@math.uh.edu> for reporting the bug.
1294
1295 7. Fixed a compatibility problem in linux/alpha dump tape format.
1296 Now the linux/alpha dump are (again) compatible with the
1297 other dump formats. But this breaks compatibility with
1298 older dumps made on alpha. Thanks to Mike Tibor
1299 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1300
1301 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1302 ======================================================================
1303
1304 1. Added a '--enable-kerberos' to configure.
1305
1306 2. Added a 'S' option to dump which determines the amount of space
1307 that is needed to perform the dump without actually doing it, similar
1308 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1309 <cermak@ahab.rutgers.edu>.
1310
1311 3. Added a 'M' multi-volume option to dump and restore which enables
1312 dumping to multiple files (useful when dumping to an ext2
1313 partition to make several dump files in order to bypass the 2GB
1314 file size limitation). The 'f' argument is treated as a prefix and
1315 the output files will be named <prefix>001, <prefix>002 etc. With
1316 the 'M' flag, restore automatically selects the right file without
1317 asking to enter a new tape each time.
1318
1319 4. Fixed a memory leak which was causing dump to grow very big
1320 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1321 Fearon <jasonf@netrider.org.au> for reporting the bug.
1322
1323 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1324 ======================================================================
1325
1326 1. Make configure test if the system glob routines support
1327 extended syntax (ALTDIRFUNC). If not, use the internal glob
1328 routines instead of system ones. Thanks to Bernhard Sadlowski
1329 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1330 and helping me resolve this and other minor libc5 compiling
1331 glitches.
1332
1333 2. Fix a problem when dumping a ext2fs with the 'filetype'
1334 feature enabled. Thanks to Patrick J. LoPresti
1335 <patl@cag.lcs.mit.edu> for reporting the bug and to
1336 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1337
1338 3. Made the nodump flag work on directories. A directory which
1339 has the nodump flag gets never dumped, regardless of its
1340 contents.
1341
1342 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1343 which allows dump on an active ext3 filesystem. However, this
1344 is a "quick and dirty" patch which enables backup of an ext3
1345 filesystem through the ext2 compatibility (by ignoring the
1346 NEEDS_RECOVERY bit). The journal file is not recognized and
1347 it is dumped (it should not).
1348
1349 5. Test the superblock compatibility flags when dumping, in order
1350 to be sure that we know how to deal with specific features.
1351
1352 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1353 ====================================================================
1354
1355 1. Use lchown instead of chown, fixing a possible security problem
1356 when restoring symlinks (a malicious user could use this
1357 to deliberately corrupt the ownership of important system files).
1358 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1359 this and providing the patch.
1360
1361 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1362 ====================================================================
1363
1364 1. Put dump sources under CVS, added Id tags in all files so
1365 one can use 'ident' on binary files.
1366
1367 2. Added the dump/restore version in the usage text so one can
1368 easily verify the version he is using.
1369
1370 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1371 a va_start/va_end problem on linux-ppc (always call va_start
1372 va_end in pairs each time we use a vararg function).
1373
1374 4. Added again the DT_* constants because old libc does not
1375 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1376 for submitting the bug report.
1377
1378 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1379 this should enable dumping big (huge) filesystems.
1380
1381 6. Added the RSH environment variable in order to be able to
1382 use a rsh replacement like ssh when doing remote backups (and
1383 bypass the security limitations of rcmd). Now you can do remote
1384 backups without being root (or making dump setuid root).
1385
1386 7. Modified again the way dumpdates works. For incremental dumps,
1387 we need to read dumpdates even if we are not using 'u' option.
1388 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1389 this should work.
1390
1391 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1392 ===================================================================
1393
1394 1. Removed the 'k' flag from the restore 'about' text if kerberos
1395 was not compiled in.
1396
1397 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1398 to them (fsetflags takes a char*, setflags an open fd!).
1399
1400 3. (f)setflags is called only if the flags aren't empty. If the
1401 file is a special file, a warning is printed, because changing
1402 flags implies opening the device. Normally, a special file
1403 should not have any flag... (Debian bug #29775, patch provided
1404 by Abhijit Dasgupta <abhijit@ans.net>).
1405
1406 4. Made possible to dump a file system not mentioned in /etc/fstab.
1407 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1408
1409 5. Changed the default behaviour to not create dumpdates
1410 unless 'u' option is specified. Removed the old "debian-patch"
1411 which provided the same thing. (Debian bug #38136, #33818).
1412
1413 6. Removed all those dump*announce, since they were getting old...
1414
1415 7. Added warning messages if dumpdates does not exist and
1416 when an inferior level dump does not exist (except for a level 0
1417 dump).
1418
1419 8. Debugged the glob calls in interactive mode: restore used a
1420 dirent struct which was different from the /usr/include/dirent.h
1421 one (this used to work, is it a glibc2 change?), so none of the
1422 compat glob (which used /usr/include/dirent.h) or the system glob
1423 worked. Restore use now the system dirent (and the system
1424 DT_* constants), which are compatible with BSD ones.
1425
1426 9. Added a configure flag (--with-dumpdatespath) to specify
1427 the location of dumpdates file. By default, it is
1428 /etc/dumpdates.
1429
1430 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1431 included the current date/version in man pages.
1432
1433 11. Corrected the estimation of remaining time when
1434 the operator doesn't change the tapes quickly enough. This
1435 was an old bug, I thought I corrected it, and discovered
1436 that in fact it was corrected in two different places, so
1437 the results canceled each other...
1438
1439 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1440 ===================================================================
1441
1442 1. Integrated multiple patches from RedHat, Debian and SuSE:
1443
1444 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1445 isn't specified.
1446 - several fixes in the man pages.
1447 - update the default tape device to /dev/st0.
1448 - many updates for Linux Alpha (byte ordering, size_t etc).
1449 - buffer overruns.
1450 - use environment variable for TMPDIR (instead of /tmp).
1451 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1452 - workaround egcs bug (RedHat bugs #4281 and #2989).
1453 - wire $(OPT) throughout Makefile's.
1454
1455 2. Upgrade the dump revision to 1, making possible to dump filesystems
1456 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1457
1458 3. Fix some compile warnings, prototype all functions.
1459
1460 4. Use glibc err/glob instead of internal compatibility
1461 routines (only if available).
1462
1463 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1464 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1465
1466 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1467 ======================================================================
1468
1469 1. Integrated the changes from FreeBSD-3.1-RELEASE
1470 (mostly bug fixes, buffer overruns, dump has now an "automatic
1471 tape length calculation" flag, dump/restore can use kerberos now
1472 (this is NOT tested), use environment variables for TAPE and
1473 RMT etc.).
1474
1475 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1476
1477 3. Corrected a bug in restore when using 'C' option with multi-volumes
1478 tapes (files splited accros two tapes give "size changed" errors
1479 when comparing).
1480
1481 4. Corrected the long standing bug when dumping multiple tapes.
1482 This works for me, needs further testing.
1483
1484 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1485 ====================================================================
1486
1487 1. Dump now runs correctly on kernels 2.1.x
1488 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1489
1490 Changes between versions 0.4b2 and 0.4b3
1491 ========================================
1492
1493 1. Use realpath() if available
1494
1495 2. Report statistics
1496
1497 Changes between versions 0.4b1 and 0.4b2
1498 ========================================
1499
1500 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1501 the patch)
1502
1503 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1504
1505 3. Fixed configure.in to correctly handle --enable-rmt
1506
1507 Changes between versions 0.3 and 0.4b1
1508 ======================================
1509
1510 1. Integrated the changes from 4.4BSD-Lite2
1511
1512 2. Integrated the patches from Debian and Red Hat
1513
1514 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1515
1516 4. Changed dump to use the Ext2fs library to get block addresses. This
1517 should solve the endianness problem on SparcLinux.
1518
1519 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1520 distribution's one) to use autoconf
1521
1522 6. Fixed a few minor bugs
1523
1524 Changes between versions 0.2e and 0.2f
1525 ======================================
1526
1527 1. Added the creation of named pipes (fifos) in restore.
1528
1529 2. Added the -N flag in the restore manual page.
1530
1531 3. Added the file kernel.patch which contains the llseek() optimization
1532 patch for 1.2.x kernels.
1533
1534 4. Fixed a bug in the restoration of symbolic links: owner and group were
1535 not restored.
1536
1537 5. Integrated some changes from FreeBSD 2.2.
1538
1539 6. Added a call to ftruncate() after restoring each file to restore
1540 correctly files ending by a hole.
1541
1542 Changes between versions 0.2d and 0.2e
1543 ======================================
1544
1545 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1546 with owner = root (0) and group = root/wheel/whatever (0).
1547
1548 Changes between versions 0.2c and 0.2d
1549 ======================================
1550
1551 1. Dump is now able to backup 2GB+ filesystems.
1552
1553 2. Dump and restore can now be linked as static binaries.
1554
1555 Changes between versions 0.2b and 0.2c
1556 ======================================
1557
1558 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1559
1560 Changes between versions 0.2a and 0.2b
1561 ======================================
1562
1563 1. Really fixed the bug that I should have corrected in 0.2a.
1564
1565 2. Enabled optimization again.
1566
1567 Changes between versions 0.2 and 0.2a
1568 =====================================
1569
1570 1. Disabled the optimization during compilation.
1571
1572 Changes between versions 0.1 and 0.2
1573 ====================================
1574
1575 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1576 the fs_type field (actually, I modified the file fstab.c to make it
1577 use the mntent functions).
1578
1579 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1580 made by dump should be readable by the BSD restore and backups made
1581 by the BSD dump should be readable by restore. Unfortunately, this
1582 means that the dump format has changed between version 0.1 and version
1583 0.2 :-(
1584
1585 3. Dump is now able to backup a subtree, it is no longer limited to whole
1586 filesystems like the BSD version.
1587
1588 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1589 than 2 GB.
1590
1591 Changes between versions 0.0 and 0.1
1592 ====================================
1593
1594 1. Now create links rdump and rrestore during the `make install' step.
1595
1596 2. Linux port specific bugs added to the manual pages
1597
1598 3. Incorrect estimation of the number of tapes blocks fixed when doing
1599 incremental backups.
1600
1601 4. Better ls-like format in restore in interactive mode.