Fix restore when symtab file is over 2GB in size.
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.278 2005/07/07 08:47:13 stelian Exp $
2
3 Changes between versions 0.4b40 and 0.4b41 (released ???????????)
4 =================================================================
5
6 1. Fix restore of dumped Access Control Lists. The previous
7 code for EA works fine, but ACLs needed conversion from the
8 ext2/3 disk format to posix_acl format before restoring.
9
10 2. Fix some issues with restoration of EA on big endian
11 platforms.
12
13 3. Fix restore when the symtab is over 2GB in size.
14
15 Changes between versions 0.4b39 and 0.4b40 (released May 2, 2005)
16 =================================================================
17
18 1. Changed restore to emit warnings (instead of emitting a fatal
19 error) if a file (or a directory) is unavailable for a
20 comparision (if the user doesn't have the necessary permissions
21 to access it for example). Thanks to Kenneth Porter
22 <shiva@sewingwitch.com> for the bug report.
23
24 2. Re-done the 'do not save directory entries to non-dumped inodes
25 (excluded from dump)' feature. The previous implementation
26 worked well for excluded directories but not for regular files.
27 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
28 report.
29
30 3. Fixed a bug in dump where the tape size was miscalculated when
31 the user used -d/-s to specify the tape characteristics. Thanks
32 to Philip Goisman <goisman@physics.arizona.edu> for reporting
33 the bug.
34
35 4. Fixed another bug introduced in restore with the hashtree
36 implementation. This one caused restore to stop saying
37 "removenode: non-empty directory" in some cases.
38
39 5. Added support for dumping and restoring ext2/3 extended
40 attributes (EA), like the access control lists (ACL) or
41 the security labels used by SELinux.
42
43 Changes between versions 0.4b38 and 0.4b39 (released January 21, 2005)
44 ======================================================================
45
46 1. The newly added dump_on_cd_3 example was buggy, replace it
47 with an updated version from Andrew Basterfield
48 <bob@cemetery.homeunix.org>.
49
50 2. Made restore to chdir() back into the initial directory when
51 dumping core while aborting a comparision operation. The
52 previous behaviour was to write the corefile at the root of
53 the directory being compared, which could very well be
54 read only and preventing the corefile generation. Thanks
55 to Kenneth Porter <shiva@sewingwitch.com> for the bug report.
56
57 3. Silenced the failure to call fgetflags() when comparing an
58 entry which has no ext2 attributes (as in lsattr()).
59
60 4. Fix a brown paper bug in restore -C which broke restore and
61 caused modifications on the filesystem being compared
62 (directories containing a file with the same name as the
63 directory get renamed to RSTTMP...). Thanks to Kenneth Porter
64 <shiva@sewingwitch.com> for finding the bug and helping me
65 reproduce it.
66
67 5. Made restore -C force the -N flag (no writing allowed on
68 the disk) in order to prevent more bugs like the above one.
69
70 Changes between versions 0.4b37 and 0.4b38 (released January 7, 2005)
71 =====================================================================
72
73 1. Fix a couple of troff syntax bugs in the man pages.
74 Thanks to Eric Raymond <esr@thyrsus.com> for the patch.
75
76 2. Made restore use either libncurses or libtermcap, depending
77 on which one is available at configure time.
78
79 3. Fixed restore negative size display bug when comparing a
80 dump containing files over 2GB. Thanks to Steve Bonds
81 <sbonds@users.sourceforge.net> for the bug report.
82
83 4. Do not save directory entries to non-dumped inodes
84 (excluded from dump). This will eliminate the 'missing
85 file' warnings when doing 'restore -C'.
86
87 5. Fix dump crash when backuping a huge (2TB) filesystem,
88 due to a bogus calculation on the inode map size.
89 Thanks to Kevin B. Haines <K.B.Haines@rl.ac.uk> for
90 submitting the bug and testing the fix.
91
92 6. Fix a problem in restore where the final \0 in the symbolic
93 link names could have been lost, generating corrupt filenames.
94 Thanks to Kyle Wilson <kyle.wilson@amd.com> for reporting the
95 bug.
96
97 7. Implemented a hash list for the directory names in restore.
98 The linear list used before caused problems in interactive
99 restores when dealing with directories having thousands of
100 entries. Thanks to Brian Ristuccia <bristuccia@starentnetworks.com>
101 for reporting the bug.
102
103 8. Improved restore -C, this time including the directory
104 attributes into the comparision.
105
106 9. Made restore understand tapes containing EA/ACLs (which will
107 be dumped by the next version of dump). In this version
108 extended attributes on the tape are ignored, for full EA/ACL
109 support wait for the next version or try the experimental EA
110 patch.
111
112 Changes between versions 0.4b36 and 0.4b37 (released July 7, 2004)
113 ==================================================================
114
115 1. Added the --enable-staticz configure option which enables
116 dump and restore to be linked with static versions of
117 libz and libbz2 (and dynamic versions of all other libraries).
118 This will make Debian users happy, because libz and libbz2
119 were the only needed libraries living in /usr, all the
120 others live in /lib. In case of system emergency, it is
121 better not to have to rely on an extra filesystem.
122 Thanks to Bdale Garbee <bdale@gag.com> for the suggestion.
123
124 2. Fix compilation on (at least the Linux Debian port to) AMD64.
125 (<ext2fs/ext2_types.h> defines some types (__s64 and __u64)
126 that are also defined by <linux/types.h> (<asm/types.h>) and
127 they conflict).
128
129 3. Make dump's reading of the dumpdates file a bit more robust,
130 preventing dump from crashing when the dumpdates file has
131 been modified by hand.
132
133 4. Fixed some offset calculations in dump code which could
134 lead to "bread lseek errors" on large filesystems. Thanks
135 to Bruce Lowekamp <lowekamp@users.sourceforge.net> for
136 reporting this bug and debugging the issue.
137
138 5. Made dump use the blkid library when searching for devices
139 by label or uuid instead of dump's own routines.
140
141 6. Corrected a bug in dump where a wrong LABEL=... line in
142 /etc/fstab could prevent dump from dumping unrelated
143 filesystems. Thanks to Bruce Lowekamp
144 <lowekamp@users.sourceforge.net> for reporting the bug.
145
146 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
147 ====================================================================
148
149 1. Fixed dump compilation with old gcc versions. Thanks to
150 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
151
152 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
153 when compiling against a recent glibc version.
154
155 3. Fixed a bug in restore preventing the read of a dump tape
156 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
157 <phiggins@transzap.com> for reporting the bug and providing
158 the test case.
159
160 4. Changed dump to enable the creation of volumes of different
161 sizes in a single run (make -B accept a list of values).
162 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
163
164 5. Use the glibc provided minor() and major() macros instead
165 of our own bitmask implementation. This should be safe for
166 when the major/minor namespace will migrate to 32 bits.
167 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
168 the bug.
169
170 6. Made explicit in the dump man page that dump will not create
171 a remote file, it will only write to an already existing one.
172
173 7. Another try at making size estimates better again.
174
175 8. Put back the inconditional running of the end-of-tape
176 script which was changed in 0.434 to be run only when -M
177 or multiple -f were NOT specified. Some users rely on this
178 feature even when it is combined with -M/-f.
179
180 9. Fixed restore when restoring huge backups (where rstdir...
181 temporary files are over 2GB). Thanks to
182 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
183 debugging the issue and making the patch.
184
185 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
186 David <vrtin@users.sourceforge.net> for submitting the bug
187 and providing a test case.
188
189 11. Made dump work with an arbitrary integer level (no more 10
190 levels only limitation). Thanks to Matthew
191 <msvincen@midway.uchicago.edu> for the patch.
192
193 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
194 =======================================================================
195
196 1. Added a note in the dump man page saying that the default
197 blocksize can be 32 if -d is used with a high density argument.
198 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
199 for the patch.
200
201 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
202 LDFLAGS environment variables. Thanks to Arcady Genkin
203 <antipode@users.sourceforge.net> for reporting the bug.
204
205 3. Made -e/-E options of dump accept an unlimited number of inodes
206 to be excluded, rather than a hardcoded maximum. Thanks to
207 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
208
209 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
210 and -D_USE_BSD_SIGNAL defines in configure in order to solve
211 64bit build problems because quad_t is redifined with a
212 different signature. Thanks to Mike Harris <mharris@redhat.com>
213 for reporting this bug.
214
215 5. Made restore build on Solaris, making possible to
216 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
217 <uwe@ugsoft.de> for the patch.
218
219 6. Made an extension in the dump tape format capable of saving
220 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
221 wrote the extension and contributed the restore code back
222 into this codebase. The same extension mechanism will be
223 used in the future to save ACLs...
224
225 7. Made rmt work correctly with regard to QFA and local/remote
226 files and tapes. The remote access will however work only
227 when the dump provided rmt version is used. If you want to
228 use another rmt server, please do not use the QFA feature.
229 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
230
231 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
232 ====================================================================
233
234 1. Fixed the INSTALL file to reflect the actual install paths.
235 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
236 reporting the bug.
237
238 2. Fixed the configure script to only check for headers presence
239 instead of trying to compile them. This should fix issues
240 with old build environments. Thanks to Kari Lempiainen
241 <kari@funky.pp.fi> for reporting the bug.
242
243 3. Fixed restore to correctly ignore sockets when comparing
244 a dump (as socket cannot be properly restored anyway). Thanks
245 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
246
247 4. Fixed restore to correctly access the archive file (-A argument)
248 even when using a remote tape. Thanks to Fabrice Bellet
249 <fabrice@bellet.info> for reporting the bug.
250
251 5. Fixed (again) handling of long (largefile) seeks in rmt.
252 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
253 the bug.
254
255 6. Fixed restore corner case when dealing with large block sizes
256 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
257 <fabrice@bellet.info> for reporting the bug.
258
259 7. Fixed a bug preventing dump to access a filesystem having
260 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
261 for reporting the bug.
262
263 8. Made dump store dump dates using explicit timezones, fixing a
264 problem with incremental dumps if the timezone is modified
265 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
266 the bug report and the patch.
267
268 9. Fixed a bug encountered when dumping individual files (not full
269 filesystems or directories) and dangling symbolic links happen
270 to be in the list of files. For as far as dump is concerned,
271 dangling symbolic links are allowed, and are dumped as is.
272 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
273 bug and providing the fix.
274
275 10. Fixed open and creation modes and permissions for QFA and
276 table-of-contents files in dump and restore. Thanks to
277 Philippe Troin <phil@fifi.org> for the patch.
278
279 11. Fixed the archive file descriptor handling enabling it to be 0.
280 This can happen in some cases when shell redirections are used.
281 Thanks to Philippe Troin <phil@fifi.org> for the patch.
282
283 12. Delayed the opening of archive file until after suid had been
284 dropped (fixing a possible security issue if dump is suid).
285 Thanks to Philippe Troin <phil@fifi.org> for the patch.
286
287 13. Fixed the 'S' command handling in the rmt client part.
288 Thanks to Philippe Troin <phil@fifi.org> for the patch.
289
290 14. Modified the end-of-tape script handling to print out statistics
291 (and stop the timer) before launching the eot script. Also, the eot
292 script does not get run anymore when using -M (which makes sense) or
293 when multiple tapes are listed on the command line
294 (-f tape0,tape1,tapen) (which also makes sense).
295 Thanks to Philippe Troin <phil@fifi.org> for the patch.
296
297 15. Relicensed dump/restore under the 'revised' BSD license, as per
298 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
299
300 16. Added LZO compression to dump. This new compression method has
301 the advantage of being super fast, thus not killing tape streaming
302 on slow machines. Thanks to Helmut Jarausch
303 <jarausch@igpm.rwth-aachen.de> for the patch and to
304 Markus Oberhumer <markus@oberhumer.com> for giving special permission
305 to include his miniLZO project (GPL licensed) in dump/restore.
306
307 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
308 <ant@notatla.demon.co.uk> for reporting the bugs.
309
310 18. Added a special rmt version which can do encryption when writing
311 to tape. Read examples/encrypted_rmt/README for details on
312 how to enable and configure it. Thanks to Ken Lalonde
313 <ken@globalremit.com> for the patch.
314
315 19. Made dump work with 2.5 kernel end of tape early warning semantics.
316 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
317
318 20. Fixed a bug which caused dump -w|-W not to work anymore, because
319 the fs_freq and fs_passno fields in /etc/mtab are always set
320 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
321 reporting the bug.
322
323 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
324 =======================================================================
325
326 1. Added a note in the restore man page clarifying the question
327 'set the permissions on the current directory ?' asked by
328 restore at the end of treatment in -i and -x modes.
329
330 2. Fixed the endianess issues when reading compressed tapes.
331 Thanks to Dark Force <daq4th@users.sourceforge.net> for
332 reporting this bug and providing test cases.
333
334 3. Fixed the "ACL won't be dumped" warning message (which showed
335 an extra, unrelated error message). Thanks to Dragan Krnic
336 <dkrnic@lycos.com> for reporting this bug.
337
338 4. Made dump look first into /etc/mtab, then into /etc/fstab
339 when searching for filesystem paths. Also fixed some problems
340 caused by binding mounts or multiple block device mounts.
341 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
342 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
343 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
344 and #160305, Sourceforge bugs #618699 and #679832).
345
346 5. Made dump's -I option accept the value '0' meaning all the
347 read errors will be ignored. This can be useful when running
348 dump from unattended sessions (like cron jobs). Thanks to
349 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
350
351 6. Fixed the output of dump to indicate 'blocks' instead of
352 'tape blocks' in the various messages (blocks are always
353 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
354 made it clearly print the current blocksize at the start of
355 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
356 the suggestions.
357
358 7. Made rmt understand long (largefiles) seeks.
359
360 8. Fixed build with very old versions of libext2fs, where
361 EXT2_FT_* constants were undefined.
362
363 9. Made dump accept the dumpdates path on the command line
364 (-D file option) instead of using only the hardcoded one.
365 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
366 suggestion.
367
368 10. Enabled rmt, LFS, readline, QFA options by default in
369 ./configure. Updated the configure process (new versions
370 of config.guess, config.sub etc).
371
372 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
373 =======================================================================
374
375 1. Changed dump to use fcntl(F_SETLK) style locking instead
376 of flock() when locking the dumpdates file. With the old
377 locking scheme, a local user having read rights on the
378 dumpdates file could be able to do a Denial of Service attack
379 on dump. In order to lock the dumpdates file with the new
380 scheme, the user would need to have write access on the file.
381 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
382 reporting the bug (originally a bugtraq post).
383
384 2. Fixed interactive 'ls' which caused spurious errors warnings
385 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
386 <jorgen_ostling@users.sourceforge.net> for reporting this
387 bug.
388
389 3. Fixed dump's estimate when dealing with sparse inodes.
390
391 4. Modified dump to allow setting a blocksize bigger than 32kB
392 (raised the limit to 1024kB), because newer hardware needs
393 this for proper operation. Thanks to Dirk Traenapp
394 <dtraenapp@users.sourceforge.net> for reporting this.
395
396 5. Fixed a bug causing Dump to stop and report an error if an
397 inode number in the exclude file was followed by some amount
398 of whitespace. Thanks to Jeffrey Sofferin
399 <sofferin@users.sourceforge.net> for reporting this bug.
400
401 6. Fixed a bug which caused restore, in some particular cases,
402 to ask some 'scary' questions and leave a bunch of RSTTMP
403 directories behind when restoring incremental tapes. Thanks
404 to Philippe Troin <phil@fifi.org> for reporting this bug and
405 providing the test cases.
406
407 7. Changed the wording when inodes are excluded from dump:
408 replaced 'Added inode 7 to exclude list' with
409 'Excluding inode 7 (resize inode) from dump', as suggested
410 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
411
412 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
413 ===================================================================
414
415 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
416 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
417 <eros@lamel.bo.cnr.it> for reporting the bug.
418
419 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
420 ===================================================================
421
422 1. Made dump print out the ext2 logical block number in case of a read
423 error, which can be given as an argument to debugfs' ncheck command,
424 in order to find out the affected inode. Added note about this
425 usage in dump's man page.
426
427 2. Fixed a problem in restore when reading tapes written on big
428 endian machines with very old versions of dump. The patch was
429 contributed by George Helffrich <george@geology.bristol.ac.uk>.
430
431 3. Fixed the tape length calculation when using large tapes
432 and compression. Thanks to Georg Lippold
433 <g_lippold@sourceforge.net> for reporting the bug.
434
435 4. Added a new set of examples in dump_on_cd_2 directory, based
436 on dump_on_cd examples but somewhat enhanced, supporting DVD
437 media, and localized in english and german. Thanks to
438 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
439
440 5. Made dump save 32 bit UID/GID. Internally, this was achieved
441 by switching from the old BSD inode format to the new BSD
442 inode format, which means that the tape format was changed.
443 However, since all restore versions out there should
444 transparently support both inode formats, the change should
445 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
446 reporting the bug.
447
448 6. Fixed a lot of warnings in the code shown when compiling
449 with 'gcc -W'. Thanks to Matthias Andree
450 <matthias.andree@stud.uni-dortmund.de> for reporting this.
451
452 7. Fixed a small markup bug in the dump man page. Thanks to
453 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
454 patch.
455
456 8. Rewrote entirely the man pages using the tmac.an macro
457 package (Linux man page format) instead of the original BSD
458 format. They should be now cleaner and easier to modify.
459
460 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
461 ==================================================================
462
463 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
464 non Linux clients were misinterpreted. The description of the problem
465 (incompatible numbering in Linux mtio opcodes) is documented at
466 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
467 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
468 providing an excellent, cross-platform replacement for rmt in his
469 star package.
470
471 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
472 which caused restore to fail when the inode maps were not entirely
473 contained on the first volume (when using really small volumes or
474 when dumping a huge number of inodes).
475
476 3. Fixed a problem in dump, where files in subdirectories of directories
477 that have the nodump flag set (or being excluded with -e/-E) were
478 sometimes incorrectly dumped (instead of being excluded). The original
479 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
480 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
481 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
482 help testing the patch.
483
484 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
485 which makes one able to pipe the output of dump, by the net, to
486 a remote CD-burner server.
487
488 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
489 and use GNU's symbolic syntax over rmt instead of numerical values
490 to assure multiple platform compatibility.
491
492 6. Documented the -d option in restore.
493
494 7. Added a -v (verbose) mode to dump. For now it just prints the number
495 of the inode being dumped, but this could evolve in future versions
496 to include interesting debugging output.
497
498 8. Added a -o flag to restore, which automatically restores the current
499 directory permissions in -i or -x mode, without asking the operator
500 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
501 and Peter Samuel <peters@e-smith.com>.
502
503 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
504 ====================================================================
505
506 1. Fixed a bug in the QFA feature which could have caused
507 a bad tape positionning on restore (causing extra delays in
508 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
509
510 2. Added a small note in the dump man page specifying that
511 there should be no white space between the option letter and
512 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
513
514 3. Made restore work with older versions of the readline library,
515 by checking in configure for several extended symbols. Restore
516 can now be compiled with a readline as old as the 2.0 release
517 (though it may be a good idea to upgrade it to a more recent
518 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
519 reporting the build failures.
520
521 4. Fixed a performance problem with the QFA file creation in
522 dump, which made unnecessary seeks on the tape slowing down
523 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
524 reporting this issue.
525
526 5. Removed the inclusion of some kernel headers in the dump
527 source, which prevented the compile in some kernel/glibc
528 headers/architecture combination. Thanks to Bdale Garbee
529 <bdale@gag.com> for reporting the bug.
530
531 6. Added the appropriate error message when dump fails to
532 open the output file for writing. Thanks to Amith Varghese
533 <amithv@yahoo.com> for reporting this bug.
534
535 7. Made restore able to understand large Solaris ufsdump tapes
536 (containing inodes bigger than 4194304). Sun have introduced
537 an "extension" to the dump tape format when dealing with
538 those inodes, which was uncorrectly handled by Linux restore.
539 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
540 providing a test case.
541
542 8. Added the -m parameter to dump which optimises the output for
543 inodes having been changed but not modified since the last dump
544 ('changed' and 'modified' have the meaning defined in stat(2)).
545 For those inodes, dump will save only the metadata, instead of
546 saving the entire inode contents. Inodes which are either
547 directories or have been modified since the last dump are saved
548 in a regular way. Uses of this flag must be consistent, meaning
549 that either every dump in an incremental dump set have the flag,
550 or no one has it.
551
552 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
553 =======================================================================
554
555 1. Fixed behaviour of dump when exceeding resource limits
556 (SIGXFSZ treatment).
557
558 2. Added the -L flag to restore to allow the user to specify a
559 maximal allowed number of miscompares when using restore
560 with the -C option to check the backup.
561
562 3. Detailed the manual entry for the -N option of restore.
563
564 4. Added the -a flag to restore to make able doing unattended
565 restores in -i or -x mode (automatically walks through the
566 multiple dump volumes).
567
568 5. Extended the QFA mode to work with local files and/or
569 remote tapes and files. This way, restore can know in advance
570 the tape number and the offset for the inodes to extract and
571 can minimize the extraction time by seeking directly to the
572 good tape/offset.
573
574 6. Added the -A <archive> option to both dump and restore,
575 which makes dump to archive a dump table-of-contents in
576 the specified file to be used by restore to determine
577 whether a file is in the dump file that is being restored.
578 (the archive file syntax is also compatible with the
579 Solaris ufsdump generated one).
580
581 7. Small fix in restore making it able to read some (broken ?)
582 Solaris ufsdump tapes.
583
584 8. Fixed dump to correctly recognise the root filesystem when using
585 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
586 for reporting this bug.
587
588 9. Added the -P <file> option to restore to create a
589 Quick File Access file from an already made dump. Patch
590 contributed by Uwe Gohlke <uwe@ugsoft.de>.
591
592 10. Made restore compile and run on Solaris, making it a
593 possible replacement for the standard ufsrestore. Port was
594 contributed by Uwe Gohlke <uwe@ugsoft.de>.
595
596 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
597 =====================================================================
598
599 1. Added a set of backup scripts from Eugenio Diaz
600 <getnito@yahoo.com> in the examples section. It features
601 automatic (cron based) full and incremental dumping of
602 several filesystems on a separate filesystem.
603
604 2. Fixed a off-by-one miscalculation which disabled dumping
605 a one letter subdirectory. Thanks to Chris Siebenmann
606 <cks@utcc.utoronto.ca> for reporting the bug.
607
608 3. Fixed several restore bugs occuring when trying to
609 restore some missing files on the tape. Thanks to Chris
610 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
611
612 4. Fixed --with-ldopts configure argument passing, installing from
613 a separate object directory, makefile cleanups contributed
614 by <splite@purdue.edu>.
615
616 5. Fix a bug which could caused, in some conditions, the highest
617 number inode of a filesystem, to not be dumped. Many thanks
618 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
619 chase this bug.
620
621 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
622 =======================================================================
623
624 1. Added a mini howto from Patrick Walsh in the examples
625 directory.
626
627 2. Minor man pages syntax corrections. Thanks to
628 Chris Danis <screechco@home.com> for reporting the bugs.
629
630 3. Added a script from David B. Peterson <dave@toppledwagon.com>
631 to the examples section. It features dumping several
632 filesystems to a remote tape drive upon ssh.
633
634 4. Added a patch provided by Richard Jones <rich@annexia.org>
635 which allows BRADEMAX (number of read errors tolerated by
636 dump) to be adjusted using the -I option.
637
638 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
639 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
640 patch.
641
642 6. Add the -l option to restore to specify if, when doing a
643 remote restore, the file used to access the backup is a
644 regular file (the defaults being a tape drive). Restore needs
645 to know this information when reading a remote compressed
646 dump. Previously, this information was autodetected, but
647 the autodetection code fails (with ioctl: Inappropriate ioctl
648 for device) when using a non Linux remote box. Thanks to
649 many users and especially to Eros Albertazzi
650 <eros@lamel.bo.cnr.it> for reporting this.
651
652 7. Found a workaroung for the dump deadlock problem (3 childs
653 stuck in pause(), father in read()). The workaround seems
654 to work for me and several beta-testers. If it doesn't work
655 for you, please report back.
656
657 8. Updated the RPM spec file (BuildPrereq, URL etc).
658
659 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
660 ========================================================================
661
662 1. Fixed the permissions of a newly created QFA file by dump.
663
664 2. Cleaned up the source of dump (the external variables
665 definition was a complete mess, making possible to have
666 objects overlap).
667
668 3. Fixed restore to use the full tape volume path when doing
669 a compare (since it changes the working directory to the
670 filesystem being compared in the process).
671
672 4. Added the -q option to dump which makes dump abort
673 whenever it needs operator attention. It should be
674 easier to use dump in scripts with this option.
675
676 5. Detect the use of incompatible options to dump and
677 refuse them (like -a and -B options together).
678
679 6. Added bzip2 compression to dump/restore (use option -j level
680 to select it). Note that you will need a restore version
681 >= 0.4b24 in order to restore a bzip2 compressed dump.
682 The same warning as for the zlib compression applies:
683 the tape format of a bzip2 dump is not compatible with the
684 original BSD tape format.
685
686 7. Fixed a overflow problem in dump corrupting the dump when
687 very large files were encountered. Thanks to Vladimir Nadvornik
688 for the bug report.
689
690 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
691 kernel buffer/page cache before starting the dump, helping
692 a bit those who use dump on mounted filesystems. Thanks to
693 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
694 for this suggestion.
695
696 9. Updated the RPM spec file following the RedHat changes
697 (dynamically linked binaries now in /usr/sbin etc).
698
699 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
700 which enables restore to recognise multi volume compressed dumps
701 done on CD. Included his scripts for dump (which pipe the dump
702 output directly into cdrecord) and restore. There is now
703 possible to to backups to CD on the fly!
704
705 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
706 ===================================================================
707
708 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
709 Marcus Meissner (Caldera International Security Dept.).
710
711 2. Implement the Sun rmt extended protocol. Patch submitted
712 by Ian Gordon <iangordon@users.sourceforge.net>.
713
714 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
715 the linux kernel header. This ensures that dump always has the
716 latest version of this file. Patch submitted by
717 Andreas Dilger <adilger@turbolinux.com>.
718
719 4. Report any filesystem present in either /etc/fstab with a
720 positive passno or /etc/dumpdates in dump -w output.
721 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
722
723 5. Fixed the looping problem in dump introduced in the
724 previous version.
725
726 6. Changed the -B option of dump to limit the size of
727 _compressed_ output per volume if compression is on.
728 Patch contributed by Helmut Jarausch
729 <jarausch@igpm.rwth-aachen.de>. Note however that, since
730 it is impossible to predict the size of the compressed
731 data before doing the compression, the -B limit is a bit
732 conservative.
733
734 7. Fixed a bug in reading the operator typed file/tape path for
735 the next volume in restore.
736
737 8. Implemented a "-F script" option to restore which permits the
738 user to specify a script which will be launched at the
739 beginning of each tape, useful for automatic programming of
740 tape changers for example. See the restore man page for the
741 script parameters and return codes.
742
743 9. Small fix for the QFA routines provided by Uwe Gohlke
744 <uwe@ugsoft.de>, and some recommendations for QFA uses in
745 the man pages.
746
747 10. Fixed the multivolume restoring where making a mistake
748 to the 'Mount next tape' prompt caused several blocks to
749 be lost.
750
751 11. Enhanced the -e option of dump to take as a parameter a
752 comma separated list of inode numbers.
753
754 12. Added the -E option to dump which specify a file containing
755 inode numbers to exclude from the dump.
756
757 13. Fixed the compressed multi-volume dump + restore.
758
759 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
760 ==================================================================
761
762 1. Made dump report the number of blocks dumped per volume.
763 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
764
765 2. Fix a bug in dump where waiting too much at the 'change volumes'
766 question caused the volume to be rewritten. Thanks to
767 Graham Reed <greed@users.sourceforge.net> for reporting the
768 bug and providing a patch.
769
770 3. Added a compression option to dump, contributed by Jerry
771 Peters <gapeters@worldnet.att.net>.
772
773 WARNING: the compression works only on files/pipes and
774 drives supporting variable block size.
775
776 WARNING2: tapes created using the compression feature are
777 incompatible with the standard dump tape format, and a
778 version of restore >= 0.4b22 will be needed for extraction.
779
780 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
781 architectures. Thanks to Paul Slootman <paul@debian.org> for
782 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
783 it upstream.
784
785 5. Many cleanups (CPP defines, const char warnings, check of
786 ext2fs COMPAT flags, time_t cleanups, added libext2 version
787 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
788
789 6. Made --prefix option work in configure. All the install path
790 are now based on the configure parameters.
791
792 7. Added the Quick File Access mode in dump/restore, contributed
793 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
794 a file tape position for each inode, and this file is used by
795 restore (if called with parameter Q and the filename)
796 to directly position the tape at the file restore is currently
797 working on. This saves hours when restoring single files from
798 large backups, saves the tapes and the drive's head. Use
799 --enable-qfa option of configure to compile in the QFA support.
800
801 8. Added the possibility to dump several files and directories
802 in a single invocation of dump. Thanks to Uwe Gohlke
803 <uwe@ugsoft.de> for implementing this option.
804
805 9. Fixed the dumping and restoring of files with holes
806 (files ending with holes didn't get dumped or restored
807 correctly).
808
809 10. Fixed a socket descriptor leak in dump, which leaved opened
810 3 file descriptors per dump process (and there is one dump
811 process per tape).
812
813 11. Fixed dump large file system support, by explicit use of
814 open64/lseek64/etc functions (explicit use needed because
815 e2fsprogs libraries don't behave well when compiled with
816 FILE_OFFSET_BITS=64).
817
818 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
819 ======================================================================
820
821 1. Fixed some bugs in the dump -w|-W logic introduced by
822 the previous version. Thanks to Andreas Dilger
823 <adilger@turbolinux.com> for his help on this one.
824
825 2. Fixed again a compilation problem when using old e2fs
826 headers (filesystem label related). Thanks to many users
827 who reported this stupid error.
828
829 3. Fixed a build problem on old lib5 based systems dealing with
830 _PATH_MNTTAB being undefined. Thanks to John Adams
831 <johna@onevista.com> for reporting the bug.
832
833 4. Improved the error detection in restore when creating
834 the temporary files in TMPDIR. Now restore will corectly
835 report a 'no space left on device' error instead of
836 strange errors which could imply an archive corruption.
837 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
838 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
839
840 5. Added the throughput information in dump's progression
841 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
842 for the patch.
843
844 6. Use libext2fs's inode scanning routines, which are particularly
845 robust when dealing with errors (especially when having some
846 bad blocks on the filesystem). Many thanks to Colin
847 <colin@horizon.com> for reporting the bug, investigating
848 the issues, finding a workaround, writing the patch and
849 fully testing it... (of course, if this patch will break
850 anything, he is to blame for :-)).
851
852 7. Made dump and restore LFS aware. Dump can dump a filesystem
853 containing large files, generate a large file on output and
854 restore can restore them. This feature is not enabled by
855 default, use --enable-largefile option of configure to enable
856 it (you need to have a LFS aware glibc though). Thanks to
857 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
858 and to Theodore T'so <tytso@valinux.com> for his always
859 useful thoughts.
860
861 8. Made dump ask upon a tape write error if it should rewrite
862 the current volume (assume this is a bad tape) or if it should
863 assume an end-of-tape condition (useful for tape drives which
864 behaves badly at the end of the tape). Thanks to Andreas
865 Dilger <adilger@turbolinux.com> for the suggestion.
866
867 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
868 =======================================================================
869
870 1. Fixed a small compilation problem due to a change
871 in the definintion of the struct sigaction in
872 glibc 2.0 / libc5. Thanks to Gunther Schlegel
873 <schlegel@riege.de> for reporting the bug and to
874 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
875 a fix.
876
877 2. Modified the label and uuid analysis in order to be
878 self-contained (independant of kernel/libc headers). This
879 should fix the compile with older kernel/libc headers and
880 will preserve the functionality. Thanks to Bernhard Erdmann
881 <bernhard.erdmann@gmx.de> for reporting the bug.
882
883 3. The 'exclude inode' option, if applied to a directory
884 inode, excludes now correctly all the leaves of this
885 directory. Thanks to John R. Dennison
886 <gerdesas@users.sourceforge.net> for reporting the bug.
887
888 4. Fixed the '-e' option to disable the possibility
889 to exclude the root inode (which causes the dumps to
890 be unreadable by restore). Prevented array overflow
891 when multiple -e options are used.
892
893 5. Fixed dump to correctly interpret a filesystem argument
894 which is a mountpoint and it is not an absolute path
895 (as specified in the fstab). Thanks to Bernhard R. Erdmann
896 <be@berdmann.de> for reporting the bug.
897
898 6. Made dump able to backup files larger than 2 GB. Note that
899 dump still doesn't cope with files larger than 4 GB.
900
901 7. Restore the real uid and gid before invoking an external
902 RSH program (big hole when dump or restore is suid root!).
903
904 8. Get the values for the default tape device and the location
905 of fstab file from the system headers. Thanks to
906 Andreas Dilger <adilger@turbolinux.com> for the patch.
907
908 9. Made dump -w|-W report all recognized filesystems
909 present in either /etc/fstab or /etc/dumpdates, and present
910 the list in the same order as in fstab file. Thanks
911 to Andreas Dilger <adilger@turbolinux.com> for the patch.
912
913 10. Made dump's -a (automatic end of tape detection) the
914 default. Specifying one of -B, -c, -d or -s options will
915 override the EOM detection. Thanks to Andreas Dilger
916 <adilger@turbolinux.com> for the patch.
917
918 11. Save the ext2 filesystem label into the dump volume label.
919 Specifying a volume label on the command line (-L option)
920 will override this feature. Thanks to Andreas Dilger
921 <adilger@turbolinux.com> for the patch.
922
923 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
924 =====================================================================
925
926 1. Fixed the signal handling in dump (which I broke in 0.4b17)
927 which was causing several strange dump failures (dump
928 hanged or segmentation faults etc).
929
930 2. Specified the default blocksize in the dump man page.
931
932 3. Changed two info messages of restore to be written on stdout
933 instead of stderr in order to leave stderr only for errors
934 or warnings. Thanks to Stephen Atwell
935 <satwell@urbana.css.mot.com> for the suggestion.
936
937 4. Corrected an off by one calculation which prevented
938 dumping a directory having a 1 character name length.
939 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
940 for reporting the bug.
941
942 5. Reinforce dump in order to allow only level 0 and no
943 -u option when dumping a subdirectory, and document
944 this in the man page. Thanks to Bernhard Erdmann
945 <bernhard.erdmann@gmx.de> for reporting the bug.
946
947 6. Fixed a small harmless bug in restore which caused
948 in some conditions hard links to be restored several
949 times (therefore generation some warning messages).
950 Thanks to Kenneth Porter <shiva@well.com> for
951 reporting the bug.
952
953 7. Updated the RPM spec file to the latest RedHat version,
954 providing FHS packaging and other cosmetic changes.
955 You will need RPM version >= 3.0.5 in order to build the RPM.
956
957 8. Updated the configure script to check for libtermcap
958 before checking for libreadline, because we need this
959 library in order to compile the readline support.
960
961 9. Made dump understand the LABEL= and UUID= notation
962 both in /etc/fstab and on the command line. Note that
963 you will need the /proc filesystem in order to use
964 these notations. Thanks to Erik Troan <ewt@redhat.com>
965 for providing the patch.
966
967 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
968 ===================================================================
969
970 1. Fixed a potential buffer overflow in restore. Thanks
971 to Stan Bubrouski <satan@fastdial.net> for reporting
972 the bug.
973
974 2. Fixed a readline-related bug which prevented
975 'cat DUMPFILE | restore -i -f -' from working. Thanks
976 to Charles Karney <karney@users.sourceforge.net>
977 for the bug report.
978
979 3. Changed a few "panic" into "exit", causing restore to
980 be more stable against some attacks (like the last one
981 reported on Bugtraq, although the last version of restore
982 was not vulnerable - just dumped core). Thanks to
983 Andreas Hasenack <andreas@conectiva.com.br> for reporting
984 the bugs to me.
985
986 4. Removed the suid-root bit on dump and restore in the
987 default build (and generated RPMs). It should be safer
988 now. Users who need the suid-root capabilities in order
989 to make network backups should read first the man page
990 of dump and enable the suid bit manually.
991
992 5. Added -ltermcap to the compile parameters for restore
993 when using readline support, in order to make the compile
994 process work on some systems (SuSE ?). Thanks to
995 Patrik Schindler <poc@pocnet.net> for reporting the bug.
996
997 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
998 ====================================================================
999
1000 1. The -F script is called now *only* at the end of a tape,
1001 not at the end of the dump. Thanks to Christian Haul
1002 <haul@informatik.tu-darmstadt.de> for the bug report.
1003
1004 Normally, the device name and the current volume number
1005 are passed on the command line of the script. However,
1006 if you want the old style script (with no arguments
1007 passed on the command line), you can enable it in
1008 configure with the --enable-oldstylefscript.
1009
1010 2. Use posix signal handling to preserve dump functionality
1011 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
1012 the patch.
1013
1014 3. Made the exit code of restore in case of a 'C'ompare
1015 command reflect the result of the compare. An exit status
1016 of 0 means the dump archive is correct, 1 means tape errors,
1017 2 means that some files were modified. Thanks to Kenneth Porter
1018 <shiva@well.com> for the suggestion.
1019
1020 4. Made (finally) quotes work in interactive restore.
1021
1022 5. Small fixes in order to allow dump to compile with a
1023 really old e2fsprogs version. Thanks to Ian Zimmerman
1024 <itz@speakeasy.org> for the bug report.
1025
1026 6. Add GNU readline capabilities to interactive restore.
1027 Use configure's --enable-readline flag to enable this feature.
1028 Thanks to Patrik Schindler <poc@pocnet.net> for the
1029 suggestion.
1030
1031 7. Do the compare on the fly in restore 'C' mode (this will
1032 allow not to exhaust the available /tmp space when
1033 ccmparing large files). Thanks to Kenneth Porter
1034 <shiva@well.com> for the suggestion.
1035
1036 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
1037 ====================================================================
1038
1039 1. Fixed some several duplicate 'DUMP: DUMP:' in the
1040 output of dump.
1041
1042 2. Corrected the estimation of blocks to dump. Note that
1043 this is still wrong for large directory inodes, due
1044 to the size of a BSD directory entry on the tape
1045 (estimation is based on the size of the ext2 directory,
1046 which is smaller because it doesn't contain the null
1047 character at the end).
1048
1049 3. Made dump report the total number of MB written to
1050 tape at the end of run. Thanks to W. Reilly Cooley
1051 <wcooley@nakedape.cc> for the patch.
1052
1053 4. Added the -X option to restore giving the possibility
1054 to read the names of the files to be extracted/listed
1055 from a text file (in addition of the command line).
1056 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
1057 patch.
1058
1059 5. Added the device name and the current volume number
1060 as arguments to the end of tape script (dump -F option).
1061
1062 6. Made the multi-volume dump work again (after having
1063 broken it in 0.4b15).
1064
1065 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
1066 ===================================================================
1067
1068 1. Added a prompt command in interactive restore mode. Thanks
1069 to Andreas Dilger <adilger@home.com> for the patch.
1070
1071 2. Fixed a buffer overflow problem in dump (caused by
1072 not checking the size of the filesystem parameter).
1073 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
1074 reporting this on Bugtraq (and to several dump users
1075 who forwarded me his mail).
1076
1077 3. Added the '-F script' option to dump in order to
1078 launch a script at the end of each tape (to be used
1079 with a tape changer, or to notify the sysadmin by
1080 pager etc.).
1081
1082 4. Fixed a bug in restore compare code caused by the changes
1083 I made in 0.4b14.
1084
1085 5. Fixed the treatment of options using the old BSD syntax
1086 in both dump and restore.
1087
1088 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
1089 =======================================================================
1090
1091 1. Fixed a bug in dump which may have caused invalid deleted
1092 directories to be dumped out if they were deleted after the
1093 mapping pass. This could occure on active filesystem and lead
1094 to heap corruption (causing dump malfunction in many possible ways).
1095 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
1096 bug and submitting the patch.
1097
1098 2. Fixed the handling of the filesystem parameter in dump. A
1099 '/mnt/disk' parameter caused the disk contents to be dumped,
1100 but a '/mnt/disk/' parameter caused the mountpoint directory
1101 to be dumped (generally an empty directory).
1102
1103 3. Improved the output of dump in order to tell which directory
1104 it is currently dumping (when dumping a subtree).
1105
1106 4. Added the '-e' exclude inode option to dump. Thanks to
1107 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
1108
1109 5. Added a REPORTING-BUGS file in order to provide a guide
1110 on how to correctly report a bug in dump/restore.
1111
1112 6. Fixed a restore problem when restoring a hard link to an inode
1113 having the immutable or append-only attribute set. Thanks to
1114 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
1115
1116 7. Fixed a compatibility problem between dumps made on little
1117 endian machines (the format was correct) and big endian
1118 machines (the format was incorrect). This fix break the
1119 compatibility with the older dumps made on big endian
1120 machines (sparc, m86k, ppc etc). For the first time in
1121 linux dump's history (I believe), the dumps made by *BSD,
1122 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
1123 so interchangeable. Thanks to Rob Cermak
1124 <cermak@ahab.rutgers.edu> for submitting the bug and
1125 helping me test the fix.
1126
1127 8. Fixed the way dump reports the remaining percent/time, if
1128 the number of blocks actually dumped exceeds the estimated
1129 number of blocks. Thanks to Jean-Paul van der Jagt
1130 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
1131
1132 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
1133 ======================================================================
1134
1135 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
1136 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
1137
1138 2. Removed the requirement to build the RPM as root from the
1139 spec file. Thanks to Christian Weisgerber
1140 <naddy@mips.rhein-neckar.de> for submitting this.
1141
1142 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1143 causing dump to block when dumping really huge filesystems.
1144 Many thanks to Patrik Schindler <poc@pocnet.net> for
1145 helping me find this bug.
1146
1147 4. Fixed the treatment for an interrupt signal when dump access
1148 the remote tape through RSH. Thanks to Christian Weisgerber
1149 <naddy@mips.rhein-neckar.de> for providing the patch.
1150
1151 5. Fixed a bug which was causing dump/restore to display
1152 garbage characters instead of the remote host name.
1153
1154 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1155 =====================================================================
1156
1157 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1158 <kukuk@suse.de> for submitting the patch.
1159
1160 2. Fix for the exit code when using the size estimate option of
1161 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1162 submitting the patch.
1163
1164 3. Handle EINTR in atomical reads/writes in dump, which was causing
1165 dump to fail on some systems. Thanks to Eric Jergensen
1166 <eric@dvns.com> for reporting the bug and submitting the patch.
1167
1168 4. Handle more than 16 characters for the device names in dumpdates.
1169 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1170 tracking down the problem and proposing the solution.
1171
1172 5. Fixed a bug in dump which prevented the creation of the
1173 dumpdates file when doing a 0-level dump without already
1174 having a dumpdates file. Thanks to Patrik Schindler
1175 <poc@pocnet.net> for reporting the bug.
1176
1177 6. Changed the way dump 'S' flag reports the size estimate
1178 from number of blocks into bytes (making it compatible
1179 with the Solaris version, and simplifying things for
1180 amanda users). Thanks to Jason L Tibbitts III
1181 <tibbs@math.uh.edu> for reporting the bug.
1182
1183 7. Fixed a compatibility problem in linux/alpha dump tape format.
1184 Now the linux/alpha dump are (again) compatible with the
1185 other dump formats. But this breaks compatibility with
1186 older dumps made on alpha. Thanks to Mike Tibor
1187 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1188
1189 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1190 ======================================================================
1191
1192 1. Added a '--enable-kerberos' to configure.
1193
1194 2. Added a 'S' option to dump which determines the amount of space
1195 that is needed to perform the dump without actually doing it, similar
1196 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1197 <cermak@ahab.rutgers.edu>.
1198
1199 3. Added a 'M' multi-volume option to dump and restore which enables
1200 dumping to multiple files (useful when dumping to an ext2
1201 partition to make several dump files in order to bypass the 2GB
1202 file size limitation). The 'f' argument is treated as a prefix and
1203 the output files will be named <prefix>001, <prefix>002 etc. With
1204 the 'M' flag, restore automatically selects the right file without
1205 asking to enter a new tape each time.
1206
1207 4. Fixed a memory leak which was causing dump to grow very big
1208 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1209 Fearon <jasonf@netrider.org.au> for reporting the bug.
1210
1211 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1212 ======================================================================
1213
1214 1. Make configure test if the system glob routines support
1215 extended syntax (ALTDIRFUNC). If not, use the internal glob
1216 routines instead of system ones. Thanks to Bernhard Sadlowski
1217 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1218 and helping me resolve this and other minor libc5 compiling
1219 glitches.
1220
1221 2. Fix a problem when dumping a ext2fs with the 'filetype'
1222 feature enabled. Thanks to Patrick J. LoPresti
1223 <patl@cag.lcs.mit.edu> for reporting the bug and to
1224 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1225
1226 3. Made the nodump flag work on directories. A directory which
1227 has the nodump flag gets never dumped, regardless of its
1228 contents.
1229
1230 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1231 which allows dump on an active ext3 filesystem. However, this
1232 is a "quick and dirty" patch which enables backup of an ext3
1233 filesystem through the ext2 compatibility (by ignoring the
1234 NEEDS_RECOVERY bit). The journal file is not recognized and
1235 it is dumped (it should not).
1236
1237 5. Test the superblock compatibility flags when dumping, in order
1238 to be sure that we know how to deal with specific features.
1239
1240 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1241 ====================================================================
1242
1243 1. Use lchown instead of chown, fixing a possible security problem
1244 when restoring symlinks (a malicious user could use this
1245 to deliberately corrupt the ownership of important system files).
1246 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1247 this and providing the patch.
1248
1249 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1250 ====================================================================
1251
1252 1. Put dump sources under CVS, added Id tags in all files so
1253 one can use 'ident' on binary files.
1254
1255 2. Added the dump/restore version in the usage text so one can
1256 easily verify the version he is using.
1257
1258 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1259 a va_start/va_end problem on linux-ppc (always call va_start
1260 va_end in pairs each time we use a vararg function).
1261
1262 4. Added again the DT_* constants because old libc does not
1263 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1264 for submitting the bug report.
1265
1266 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1267 this should enable dumping big (huge) filesystems.
1268
1269 6. Added the RSH environment variable in order to be able to
1270 use a rsh replacement like ssh when doing remote backups (and
1271 bypass the security limitations of rcmd). Now you can do remote
1272 backups without being root (or making dump setuid root).
1273
1274 7. Modified again the way dumpdates works. For incremental dumps,
1275 we need to read dumpdates even if we are not using 'u' option.
1276 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1277 this should work.
1278
1279 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1280 ===================================================================
1281
1282 1. Removed the 'k' flag from the restore 'about' text if kerberos
1283 was not compiled in.
1284
1285 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1286 to them (fsetflags takes a char*, setflags an open fd!).
1287
1288 3. (f)setflags is called only if the flags aren't empty. If the
1289 file is a special file, a warning is printed, because changing
1290 flags implies opening the device. Normally, a special file
1291 should not have any flag... (Debian bug #29775, patch provided
1292 by Abhijit Dasgupta <abhijit@ans.net>).
1293
1294 4. Made possible to dump a file system not mentioned in /etc/fstab.
1295 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1296
1297 5. Changed the default behaviour to not create dumpdates
1298 unless 'u' option is specified. Removed the old "debian-patch"
1299 which provided the same thing. (Debian bug #38136, #33818).
1300
1301 6. Removed all those dump*announce, since they were getting old...
1302
1303 7. Added warning messages if dumpdates does not exist and
1304 when an inferior level dump does not exist (except for a level 0
1305 dump).
1306
1307 8. Debugged the glob calls in interactive mode: restore used a
1308 dirent struct which was different from the /usr/include/dirent.h
1309 one (this used to work, is it a glibc2 change?), so none of the
1310 compat glob (which used /usr/include/dirent.h) or the system glob
1311 worked. Restore use now the system dirent (and the system
1312 DT_* constants), which are compatible with BSD ones.
1313
1314 9. Added a configure flag (--with-dumpdatespath) to specify
1315 the location of dumpdates file. By default, it is
1316 /etc/dumpdates.
1317
1318 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1319 included the current date/version in man pages.
1320
1321 11. Corrected the estimation of remaining time when
1322 the operator doesn't change the tapes quickly enough. This
1323 was an old bug, I thought I corrected it, and discovered
1324 that in fact it was corrected in two different places, so
1325 the results canceled each other...
1326
1327 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1328 ===================================================================
1329
1330 1. Integrated multiple patches from RedHat, Debian and SuSE:
1331
1332 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1333 isn't specified.
1334 - several fixes in the man pages.
1335 - update the default tape device to /dev/st0.
1336 - many updates for Linux Alpha (byte ordering, size_t etc).
1337 - buffer overruns.
1338 - use environment variable for TMPDIR (instead of /tmp).
1339 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1340 - workaround egcs bug (RedHat bugs #4281 and #2989).
1341 - wire $(OPT) throughout Makefile's.
1342
1343 2. Upgrade the dump revision to 1, making possible to dump filesystems
1344 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1345
1346 3. Fix some compile warnings, prototype all functions.
1347
1348 4. Use glibc err/glob instead of internal compatibility
1349 routines (only if available).
1350
1351 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1352 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1353
1354 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1355 ======================================================================
1356
1357 1. Integrated the changes from FreeBSD-3.1-RELEASE
1358 (mostly bug fixes, buffer overruns, dump has now an "automatic
1359 tape length calculation" flag, dump/restore can use kerberos now
1360 (this is NOT tested), use environment variables for TAPE and
1361 RMT etc.).
1362
1363 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1364
1365 3. Corrected a bug in restore when using 'C' option with multi-volumes
1366 tapes (files splited accros two tapes give "size changed" errors
1367 when comparing).
1368
1369 4. Corrected the long standing bug when dumping multiple tapes.
1370 This works for me, needs further testing.
1371
1372 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1373 ====================================================================
1374
1375 1. Dump now runs correctly on kernels 2.1.x
1376 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1377
1378 Changes between versions 0.4b2 and 0.4b3
1379 ========================================
1380
1381 1. Use realpath() if available
1382
1383 2. Report statistics
1384
1385 Changes between versions 0.4b1 and 0.4b2
1386 ========================================
1387
1388 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1389 the patch)
1390
1391 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1392
1393 3. Fixed configure.in to correctly handle --enable-rmt
1394
1395 Changes between versions 0.3 and 0.4b1
1396 ======================================
1397
1398 1. Integrated the changes from 4.4BSD-Lite2
1399
1400 2. Integrated the patches from Debian and Red Hat
1401
1402 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1403
1404 4. Changed dump to use the Ext2fs library to get block addresses. This
1405 should solve the endianness problem on SparcLinux.
1406
1407 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1408 distribution's one) to use autoconf
1409
1410 6. Fixed a few minor bugs
1411
1412 Changes between versions 0.2e and 0.2f
1413 ======================================
1414
1415 1. Added the creation of named pipes (fifos) in restore.
1416
1417 2. Added the -N flag in the restore manual page.
1418
1419 3. Added the file kernel.patch which contains the llseek() optimization
1420 patch for 1.2.x kernels.
1421
1422 4. Fixed a bug in the restoration of symbolic links: owner and group were
1423 not restored.
1424
1425 5. Integrated some changes from FreeBSD 2.2.
1426
1427 6. Added a call to ftruncate() after restoring each file to restore
1428 correctly files ending by a hole.
1429
1430 Changes between versions 0.2d and 0.2e
1431 ======================================
1432
1433 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1434 with owner = root (0) and group = root/wheel/whatever (0).
1435
1436 Changes between versions 0.2c and 0.2d
1437 ======================================
1438
1439 1. Dump is now able to backup 2GB+ filesystems.
1440
1441 2. Dump and restore can now be linked as static binaries.
1442
1443 Changes between versions 0.2b and 0.2c
1444 ======================================
1445
1446 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1447
1448 Changes between versions 0.2a and 0.2b
1449 ======================================
1450
1451 1. Really fixed the bug that I should have corrected in 0.2a.
1452
1453 2. Enabled optimization again.
1454
1455 Changes between versions 0.2 and 0.2a
1456 =====================================
1457
1458 1. Disabled the optimization during compilation.
1459
1460 Changes between versions 0.1 and 0.2
1461 ====================================
1462
1463 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1464 the fs_type field (actually, I modified the file fstab.c to make it
1465 use the mntent functions).
1466
1467 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1468 made by dump should be readable by the BSD restore and backups made
1469 by the BSD dump should be readable by restore. Unfortunately, this
1470 means that the dump format has changed between version 0.1 and version
1471 0.2 :-(
1472
1473 3. Dump is now able to backup a subtree, it is no longer limited to whole
1474 filesystems like the BSD version.
1475
1476 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1477 than 2 GB.
1478
1479 Changes between versions 0.0 and 0.1
1480 ====================================
1481
1482 1. Now create links rdump and rrestore during the `make install' step.
1483
1484 2. Linux port specific bugs added to the manual pages
1485
1486 3. Incorrect estimation of the number of tapes blocks fixed when doing
1487 incremental backups.
1488
1489 4. Better ls-like format in restore in interactive mode.