008f92da5dce3b4cf6607228d95c3032e0105e8f
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.284 2006/03/14 11:09:50 stelian Exp $
2
3 Changes between versions 0.4b41 and 0.4b42 (released xxxxxxxxxxxxxxx)
4 =====================================================================
5
6 1. Fix printout of the 'Connection to' message in dump/restore.
7 Thanks to Dale Wiles <dwiles@users.sourceforge.net> for the
8 bug report and its fix.
9
10 2. Fix dump -w/-W output for filesystems having the last backup
11 level equal to 0. Thanks to Pascal Bouchareine
12 <kalou@users.sourceforge.net> for reporting the bug.
13
14 Changes between versions 0.4b40 and 0.4b41 (released January 2, 2006)
15 =====================================================================
16
17 1. Fix restore of dumped Access Control Lists. The previous
18 code for EA works fine, but ACLs needed conversion from the
19 ext2/3 disk format to posix_acl format before restoring.
20
21 2. Fix some issues with restoration of EA on big endian
22 platforms.
23
24 3. Fix restore when the symtab is over 2GB in size.
25
26 4. Made the directory hash indexing an optional feature,
27 accessible by the '-H' option of restore, and disable it
28 by default.
29
30 5. Fixed dump to not include extended attributes information
31 in the toc (archive) file which confused restore -t.
32
33 Changes between versions 0.4b39 and 0.4b40 (released May 2, 2005)
34 =================================================================
35
36 1. Changed restore to emit warnings (instead of emitting a fatal
37 error) if a file (or a directory) is unavailable for a
38 comparision (if the user doesn't have the necessary permissions
39 to access it for example). Thanks to Kenneth Porter
40 <shiva@sewingwitch.com> for the bug report.
41
42 2. Re-done the 'do not save directory entries to non-dumped inodes
43 (excluded from dump)' feature. The previous implementation
44 worked well for excluded directories but not for regular files.
45 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
46 report.
47
48 3. Fixed a bug in dump where the tape size was miscalculated when
49 the user used -d/-s to specify the tape characteristics. Thanks
50 to Philip Goisman <goisman@physics.arizona.edu> for reporting
51 the bug.
52
53 4. Fixed another bug introduced in restore with the hashtree
54 implementation. This one caused restore to stop saying
55 "removenode: non-empty directory" in some cases.
56
57 5. Added support for dumping and restoring ext2/3 extended
58 attributes (EA), like the access control lists (ACL) or
59 the security labels used by SELinux.
60
61 Changes between versions 0.4b38 and 0.4b39 (released January 21, 2005)
62 ======================================================================
63
64 1. The newly added dump_on_cd_3 example was buggy, replace it
65 with an updated version from Andrew Basterfield
66 <bob@cemetery.homeunix.org>.
67
68 2. Made restore to chdir() back into the initial directory when
69 dumping core while aborting a comparision operation. The
70 previous behaviour was to write the corefile at the root of
71 the directory being compared, which could very well be
72 read only and preventing the corefile generation. Thanks
73 to Kenneth Porter <shiva@sewingwitch.com> for the bug report.
74
75 3. Silenced the failure to call fgetflags() when comparing an
76 entry which has no ext2 attributes (as in lsattr()).
77
78 4. Fix a brown paper bug in restore -C which broke restore and
79 caused modifications on the filesystem being compared
80 (directories containing a file with the same name as the
81 directory get renamed to RSTTMP...). Thanks to Kenneth Porter
82 <shiva@sewingwitch.com> for finding the bug and helping me
83 reproduce it.
84
85 5. Made restore -C force the -N flag (no writing allowed on
86 the disk) in order to prevent more bugs like the above one.
87
88 Changes between versions 0.4b37 and 0.4b38 (released January 7, 2005)
89 =====================================================================
90
91 1. Fix a couple of troff syntax bugs in the man pages.
92 Thanks to Eric Raymond <esr@thyrsus.com> for the patch.
93
94 2. Made restore use either libncurses or libtermcap, depending
95 on which one is available at configure time.
96
97 3. Fixed restore negative size display bug when comparing a
98 dump containing files over 2GB. Thanks to Steve Bonds
99 <sbonds@users.sourceforge.net> for the bug report.
100
101 4. Do not save directory entries to non-dumped inodes
102 (excluded from dump). This will eliminate the 'missing
103 file' warnings when doing 'restore -C'.
104
105 5. Fix dump crash when backuping a huge (2TB) filesystem,
106 due to a bogus calculation on the inode map size.
107 Thanks to Kevin B. Haines <K.B.Haines@rl.ac.uk> for
108 submitting the bug and testing the fix.
109
110 6. Fix a problem in restore where the final \0 in the symbolic
111 link names could have been lost, generating corrupt filenames.
112 Thanks to Kyle Wilson <kyle.wilson@amd.com> for reporting the
113 bug.
114
115 7. Implemented a hash list for the directory names in restore.
116 The linear list used before caused problems in interactive
117 restores when dealing with directories having thousands of
118 entries. Thanks to Brian Ristuccia <bristuccia@starentnetworks.com>
119 for reporting the bug.
120
121 8. Improved restore -C, this time including the directory
122 attributes into the comparision.
123
124 9. Made restore understand tapes containing EA/ACLs (which will
125 be dumped by the next version of dump). In this version
126 extended attributes on the tape are ignored, for full EA/ACL
127 support wait for the next version or try the experimental EA
128 patch.
129
130 Changes between versions 0.4b36 and 0.4b37 (released July 7, 2004)
131 ==================================================================
132
133 1. Added the --enable-staticz configure option which enables
134 dump and restore to be linked with static versions of
135 libz and libbz2 (and dynamic versions of all other libraries).
136 This will make Debian users happy, because libz and libbz2
137 were the only needed libraries living in /usr, all the
138 others live in /lib. In case of system emergency, it is
139 better not to have to rely on an extra filesystem.
140 Thanks to Bdale Garbee <bdale@gag.com> for the suggestion.
141
142 2. Fix compilation on (at least the Linux Debian port to) AMD64.
143 (<ext2fs/ext2_types.h> defines some types (__s64 and __u64)
144 that are also defined by <linux/types.h> (<asm/types.h>) and
145 they conflict).
146
147 3. Make dump's reading of the dumpdates file a bit more robust,
148 preventing dump from crashing when the dumpdates file has
149 been modified by hand.
150
151 4. Fixed some offset calculations in dump code which could
152 lead to "bread lseek errors" on large filesystems. Thanks
153 to Bruce Lowekamp <lowekamp@users.sourceforge.net> for
154 reporting this bug and debugging the issue.
155
156 5. Made dump use the blkid library when searching for devices
157 by label or uuid instead of dump's own routines.
158
159 6. Corrected a bug in dump where a wrong LABEL=... line in
160 /etc/fstab could prevent dump from dumping unrelated
161 filesystems. Thanks to Bruce Lowekamp
162 <lowekamp@users.sourceforge.net> for reporting the bug.
163
164 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
165 ====================================================================
166
167 1. Fixed dump compilation with old gcc versions. Thanks to
168 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
169
170 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
171 when compiling against a recent glibc version.
172
173 3. Fixed a bug in restore preventing the read of a dump tape
174 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
175 <phiggins@transzap.com> for reporting the bug and providing
176 the test case.
177
178 4. Changed dump to enable the creation of volumes of different
179 sizes in a single run (make -B accept a list of values).
180 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
181
182 5. Use the glibc provided minor() and major() macros instead
183 of our own bitmask implementation. This should be safe for
184 when the major/minor namespace will migrate to 32 bits.
185 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
186 the bug.
187
188 6. Made explicit in the dump man page that dump will not create
189 a remote file, it will only write to an already existing one.
190
191 7. Another try at making size estimates better again.
192
193 8. Put back the inconditional running of the end-of-tape
194 script which was changed in 0.434 to be run only when -M
195 or multiple -f were NOT specified. Some users rely on this
196 feature even when it is combined with -M/-f.
197
198 9. Fixed restore when restoring huge backups (where rstdir...
199 temporary files are over 2GB). Thanks to
200 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
201 debugging the issue and making the patch.
202
203 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
204 David <vrtin@users.sourceforge.net> for submitting the bug
205 and providing a test case.
206
207 11. Made dump work with an arbitrary integer level (no more 10
208 levels only limitation). Thanks to Matthew
209 <msvincen@midway.uchicago.edu> for the patch.
210
211 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
212 =======================================================================
213
214 1. Added a note in the dump man page saying that the default
215 blocksize can be 32 if -d is used with a high density argument.
216 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
217 for the patch.
218
219 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
220 LDFLAGS environment variables. Thanks to Arcady Genkin
221 <antipode@users.sourceforge.net> for reporting the bug.
222
223 3. Made -e/-E options of dump accept an unlimited number of inodes
224 to be excluded, rather than a hardcoded maximum. Thanks to
225 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
226
227 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
228 and -D_USE_BSD_SIGNAL defines in configure in order to solve
229 64bit build problems because quad_t is redifined with a
230 different signature. Thanks to Mike Harris <mharris@redhat.com>
231 for reporting this bug.
232
233 5. Made restore build on Solaris, making possible to
234 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
235 <uwe@ugsoft.de> for the patch.
236
237 6. Made an extension in the dump tape format capable of saving
238 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
239 wrote the extension and contributed the restore code back
240 into this codebase. The same extension mechanism will be
241 used in the future to save ACLs...
242
243 7. Made rmt work correctly with regard to QFA and local/remote
244 files and tapes. The remote access will however work only
245 when the dump provided rmt version is used. If you want to
246 use another rmt server, please do not use the QFA feature.
247 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
248
249 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
250 ====================================================================
251
252 1. Fixed the INSTALL file to reflect the actual install paths.
253 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
254 reporting the bug.
255
256 2. Fixed the configure script to only check for headers presence
257 instead of trying to compile them. This should fix issues
258 with old build environments. Thanks to Kari Lempiainen
259 <kari@funky.pp.fi> for reporting the bug.
260
261 3. Fixed restore to correctly ignore sockets when comparing
262 a dump (as socket cannot be properly restored anyway). Thanks
263 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
264
265 4. Fixed restore to correctly access the archive file (-A argument)
266 even when using a remote tape. Thanks to Fabrice Bellet
267 <fabrice@bellet.info> for reporting the bug.
268
269 5. Fixed (again) handling of long (largefile) seeks in rmt.
270 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
271 the bug.
272
273 6. Fixed restore corner case when dealing with large block sizes
274 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
275 <fabrice@bellet.info> for reporting the bug.
276
277 7. Fixed a bug preventing dump to access a filesystem having
278 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
279 for reporting the bug.
280
281 8. Made dump store dump dates using explicit timezones, fixing a
282 problem with incremental dumps if the timezone is modified
283 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
284 the bug report and the patch.
285
286 9. Fixed a bug encountered when dumping individual files (not full
287 filesystems or directories) and dangling symbolic links happen
288 to be in the list of files. For as far as dump is concerned,
289 dangling symbolic links are allowed, and are dumped as is.
290 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
291 bug and providing the fix.
292
293 10. Fixed open and creation modes and permissions for QFA and
294 table-of-contents files in dump and restore. Thanks to
295 Philippe Troin <phil@fifi.org> for the patch.
296
297 11. Fixed the archive file descriptor handling enabling it to be 0.
298 This can happen in some cases when shell redirections are used.
299 Thanks to Philippe Troin <phil@fifi.org> for the patch.
300
301 12. Delayed the opening of archive file until after suid had been
302 dropped (fixing a possible security issue if dump is suid).
303 Thanks to Philippe Troin <phil@fifi.org> for the patch.
304
305 13. Fixed the 'S' command handling in the rmt client part.
306 Thanks to Philippe Troin <phil@fifi.org> for the patch.
307
308 14. Modified the end-of-tape script handling to print out statistics
309 (and stop the timer) before launching the eot script. Also, the eot
310 script does not get run anymore when using -M (which makes sense) or
311 when multiple tapes are listed on the command line
312 (-f tape0,tape1,tapen) (which also makes sense).
313 Thanks to Philippe Troin <phil@fifi.org> for the patch.
314
315 15. Relicensed dump/restore under the 'revised' BSD license, as per
316 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
317
318 16. Added LZO compression to dump. This new compression method has
319 the advantage of being super fast, thus not killing tape streaming
320 on slow machines. Thanks to Helmut Jarausch
321 <jarausch@igpm.rwth-aachen.de> for the patch and to
322 Markus Oberhumer <markus@oberhumer.com> for giving special permission
323 to include his miniLZO project (GPL licensed) in dump/restore.
324
325 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
326 <ant@notatla.demon.co.uk> for reporting the bugs.
327
328 18. Added a special rmt version which can do encryption when writing
329 to tape. Read examples/encrypted_rmt/README for details on
330 how to enable and configure it. Thanks to Ken Lalonde
331 <ken@globalremit.com> for the patch.
332
333 19. Made dump work with 2.5 kernel end of tape early warning semantics.
334 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
335
336 20. Fixed a bug which caused dump -w|-W not to work anymore, because
337 the fs_freq and fs_passno fields in /etc/mtab are always set
338 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
339 reporting the bug.
340
341 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
342 =======================================================================
343
344 1. Added a note in the restore man page clarifying the question
345 'set the permissions on the current directory ?' asked by
346 restore at the end of treatment in -i and -x modes.
347
348 2. Fixed the endianess issues when reading compressed tapes.
349 Thanks to Dark Force <daq4th@users.sourceforge.net> for
350 reporting this bug and providing test cases.
351
352 3. Fixed the "ACL won't be dumped" warning message (which showed
353 an extra, unrelated error message). Thanks to Dragan Krnic
354 <dkrnic@lycos.com> for reporting this bug.
355
356 4. Made dump look first into /etc/mtab, then into /etc/fstab
357 when searching for filesystem paths. Also fixed some problems
358 caused by binding mounts or multiple block device mounts.
359 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
360 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
361 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
362 and #160305, Sourceforge bugs #618699 and #679832).
363
364 5. Made dump's -I option accept the value '0' meaning all the
365 read errors will be ignored. This can be useful when running
366 dump from unattended sessions (like cron jobs). Thanks to
367 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
368
369 6. Fixed the output of dump to indicate 'blocks' instead of
370 'tape blocks' in the various messages (blocks are always
371 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
372 made it clearly print the current blocksize at the start of
373 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
374 the suggestions.
375
376 7. Made rmt understand long (largefiles) seeks.
377
378 8. Fixed build with very old versions of libext2fs, where
379 EXT2_FT_* constants were undefined.
380
381 9. Made dump accept the dumpdates path on the command line
382 (-D file option) instead of using only the hardcoded one.
383 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
384 suggestion.
385
386 10. Enabled rmt, LFS, readline, QFA options by default in
387 ./configure. Updated the configure process (new versions
388 of config.guess, config.sub etc).
389
390 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
391 =======================================================================
392
393 1. Changed dump to use fcntl(F_SETLK) style locking instead
394 of flock() when locking the dumpdates file. With the old
395 locking scheme, a local user having read rights on the
396 dumpdates file could be able to do a Denial of Service attack
397 on dump. In order to lock the dumpdates file with the new
398 scheme, the user would need to have write access on the file.
399 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
400 reporting the bug (originally a bugtraq post).
401
402 2. Fixed interactive 'ls' which caused spurious errors warnings
403 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
404 <jorgen_ostling@users.sourceforge.net> for reporting this
405 bug.
406
407 3. Fixed dump's estimate when dealing with sparse inodes.
408
409 4. Modified dump to allow setting a blocksize bigger than 32kB
410 (raised the limit to 1024kB), because newer hardware needs
411 this for proper operation. Thanks to Dirk Traenapp
412 <dtraenapp@users.sourceforge.net> for reporting this.
413
414 5. Fixed a bug causing Dump to stop and report an error if an
415 inode number in the exclude file was followed by some amount
416 of whitespace. Thanks to Jeffrey Sofferin
417 <sofferin@users.sourceforge.net> for reporting this bug.
418
419 6. Fixed a bug which caused restore, in some particular cases,
420 to ask some 'scary' questions and leave a bunch of RSTTMP
421 directories behind when restoring incremental tapes. Thanks
422 to Philippe Troin <phil@fifi.org> for reporting this bug and
423 providing the test cases.
424
425 7. Changed the wording when inodes are excluded from dump:
426 replaced 'Added inode 7 to exclude list' with
427 'Excluding inode 7 (resize inode) from dump', as suggested
428 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
429
430 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
431 ===================================================================
432
433 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
434 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
435 <eros@lamel.bo.cnr.it> for reporting the bug.
436
437 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
438 ===================================================================
439
440 1. Made dump print out the ext2 logical block number in case of a read
441 error, which can be given as an argument to debugfs' ncheck command,
442 in order to find out the affected inode. Added note about this
443 usage in dump's man page.
444
445 2. Fixed a problem in restore when reading tapes written on big
446 endian machines with very old versions of dump. The patch was
447 contributed by George Helffrich <george@geology.bristol.ac.uk>.
448
449 3. Fixed the tape length calculation when using large tapes
450 and compression. Thanks to Georg Lippold
451 <g_lippold@sourceforge.net> for reporting the bug.
452
453 4. Added a new set of examples in dump_on_cd_2 directory, based
454 on dump_on_cd examples but somewhat enhanced, supporting DVD
455 media, and localized in english and german. Thanks to
456 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
457
458 5. Made dump save 32 bit UID/GID. Internally, this was achieved
459 by switching from the old BSD inode format to the new BSD
460 inode format, which means that the tape format was changed.
461 However, since all restore versions out there should
462 transparently support both inode formats, the change should
463 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
464 reporting the bug.
465
466 6. Fixed a lot of warnings in the code shown when compiling
467 with 'gcc -W'. Thanks to Matthias Andree
468 <matthias.andree@stud.uni-dortmund.de> for reporting this.
469
470 7. Fixed a small markup bug in the dump man page. Thanks to
471 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
472 patch.
473
474 8. Rewrote entirely the man pages using the tmac.an macro
475 package (Linux man page format) instead of the original BSD
476 format. They should be now cleaner and easier to modify.
477
478 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
479 ==================================================================
480
481 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
482 non Linux clients were misinterpreted. The description of the problem
483 (incompatible numbering in Linux mtio opcodes) is documented at
484 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
485 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
486 providing an excellent, cross-platform replacement for rmt in his
487 star package.
488
489 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
490 which caused restore to fail when the inode maps were not entirely
491 contained on the first volume (when using really small volumes or
492 when dumping a huge number of inodes).
493
494 3. Fixed a problem in dump, where files in subdirectories of directories
495 that have the nodump flag set (or being excluded with -e/-E) were
496 sometimes incorrectly dumped (instead of being excluded). The original
497 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
498 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
499 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
500 help testing the patch.
501
502 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
503 which makes one able to pipe the output of dump, by the net, to
504 a remote CD-burner server.
505
506 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
507 and use GNU's symbolic syntax over rmt instead of numerical values
508 to assure multiple platform compatibility.
509
510 6. Documented the -d option in restore.
511
512 7. Added a -v (verbose) mode to dump. For now it just prints the number
513 of the inode being dumped, but this could evolve in future versions
514 to include interesting debugging output.
515
516 8. Added a -o flag to restore, which automatically restores the current
517 directory permissions in -i or -x mode, without asking the operator
518 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
519 and Peter Samuel <peters@e-smith.com>.
520
521 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
522 ====================================================================
523
524 1. Fixed a bug in the QFA feature which could have caused
525 a bad tape positionning on restore (causing extra delays in
526 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
527
528 2. Added a small note in the dump man page specifying that
529 there should be no white space between the option letter and
530 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
531
532 3. Made restore work with older versions of the readline library,
533 by checking in configure for several extended symbols. Restore
534 can now be compiled with a readline as old as the 2.0 release
535 (though it may be a good idea to upgrade it to a more recent
536 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
537 reporting the build failures.
538
539 4. Fixed a performance problem with the QFA file creation in
540 dump, which made unnecessary seeks on the tape slowing down
541 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
542 reporting this issue.
543
544 5. Removed the inclusion of some kernel headers in the dump
545 source, which prevented the compile in some kernel/glibc
546 headers/architecture combination. Thanks to Bdale Garbee
547 <bdale@gag.com> for reporting the bug.
548
549 6. Added the appropriate error message when dump fails to
550 open the output file for writing. Thanks to Amith Varghese
551 <amithv@yahoo.com> for reporting this bug.
552
553 7. Made restore able to understand large Solaris ufsdump tapes
554 (containing inodes bigger than 4194304). Sun have introduced
555 an "extension" to the dump tape format when dealing with
556 those inodes, which was uncorrectly handled by Linux restore.
557 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
558 providing a test case.
559
560 8. Added the -m parameter to dump which optimises the output for
561 inodes having been changed but not modified since the last dump
562 ('changed' and 'modified' have the meaning defined in stat(2)).
563 For those inodes, dump will save only the metadata, instead of
564 saving the entire inode contents. Inodes which are either
565 directories or have been modified since the last dump are saved
566 in a regular way. Uses of this flag must be consistent, meaning
567 that either every dump in an incremental dump set have the flag,
568 or no one has it.
569
570 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
571 =======================================================================
572
573 1. Fixed behaviour of dump when exceeding resource limits
574 (SIGXFSZ treatment).
575
576 2. Added the -L flag to restore to allow the user to specify a
577 maximal allowed number of miscompares when using restore
578 with the -C option to check the backup.
579
580 3. Detailed the manual entry for the -N option of restore.
581
582 4. Added the -a flag to restore to make able doing unattended
583 restores in -i or -x mode (automatically walks through the
584 multiple dump volumes).
585
586 5. Extended the QFA mode to work with local files and/or
587 remote tapes and files. This way, restore can know in advance
588 the tape number and the offset for the inodes to extract and
589 can minimize the extraction time by seeking directly to the
590 good tape/offset.
591
592 6. Added the -A <archive> option to both dump and restore,
593 which makes dump to archive a dump table-of-contents in
594 the specified file to be used by restore to determine
595 whether a file is in the dump file that is being restored.
596 (the archive file syntax is also compatible with the
597 Solaris ufsdump generated one).
598
599 7. Small fix in restore making it able to read some (broken ?)
600 Solaris ufsdump tapes.
601
602 8. Fixed dump to correctly recognise the root filesystem when using
603 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
604 for reporting this bug.
605
606 9. Added the -P <file> option to restore to create a
607 Quick File Access file from an already made dump. Patch
608 contributed by Uwe Gohlke <uwe@ugsoft.de>.
609
610 10. Made restore compile and run on Solaris, making it a
611 possible replacement for the standard ufsrestore. Port was
612 contributed by Uwe Gohlke <uwe@ugsoft.de>.
613
614 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
615 =====================================================================
616
617 1. Added a set of backup scripts from Eugenio Diaz
618 <getnito@yahoo.com> in the examples section. It features
619 automatic (cron based) full and incremental dumping of
620 several filesystems on a separate filesystem.
621
622 2. Fixed a off-by-one miscalculation which disabled dumping
623 a one letter subdirectory. Thanks to Chris Siebenmann
624 <cks@utcc.utoronto.ca> for reporting the bug.
625
626 3. Fixed several restore bugs occuring when trying to
627 restore some missing files on the tape. Thanks to Chris
628 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
629
630 4. Fixed --with-ldopts configure argument passing, installing from
631 a separate object directory, makefile cleanups contributed
632 by <splite@purdue.edu>.
633
634 5. Fix a bug which could caused, in some conditions, the highest
635 number inode of a filesystem, to not be dumped. Many thanks
636 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
637 chase this bug.
638
639 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
640 =======================================================================
641
642 1. Added a mini howto from Patrick Walsh in the examples
643 directory.
644
645 2. Minor man pages syntax corrections. Thanks to
646 Chris Danis <screechco@home.com> for reporting the bugs.
647
648 3. Added a script from David B. Peterson <dave@toppledwagon.com>
649 to the examples section. It features dumping several
650 filesystems to a remote tape drive upon ssh.
651
652 4. Added a patch provided by Richard Jones <rich@annexia.org>
653 which allows BRADEMAX (number of read errors tolerated by
654 dump) to be adjusted using the -I option.
655
656 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
657 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
658 patch.
659
660 6. Add the -l option to restore to specify if, when doing a
661 remote restore, the file used to access the backup is a
662 regular file (the defaults being a tape drive). Restore needs
663 to know this information when reading a remote compressed
664 dump. Previously, this information was autodetected, but
665 the autodetection code fails (with ioctl: Inappropriate ioctl
666 for device) when using a non Linux remote box. Thanks to
667 many users and especially to Eros Albertazzi
668 <eros@lamel.bo.cnr.it> for reporting this.
669
670 7. Found a workaroung for the dump deadlock problem (3 childs
671 stuck in pause(), father in read()). The workaround seems
672 to work for me and several beta-testers. If it doesn't work
673 for you, please report back.
674
675 8. Updated the RPM spec file (BuildPrereq, URL etc).
676
677 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
678 ========================================================================
679
680 1. Fixed the permissions of a newly created QFA file by dump.
681
682 2. Cleaned up the source of dump (the external variables
683 definition was a complete mess, making possible to have
684 objects overlap).
685
686 3. Fixed restore to use the full tape volume path when doing
687 a compare (since it changes the working directory to the
688 filesystem being compared in the process).
689
690 4. Added the -q option to dump which makes dump abort
691 whenever it needs operator attention. It should be
692 easier to use dump in scripts with this option.
693
694 5. Detect the use of incompatible options to dump and
695 refuse them (like -a and -B options together).
696
697 6. Added bzip2 compression to dump/restore (use option -j level
698 to select it). Note that you will need a restore version
699 >= 0.4b24 in order to restore a bzip2 compressed dump.
700 The same warning as for the zlib compression applies:
701 the tape format of a bzip2 dump is not compatible with the
702 original BSD tape format.
703
704 7. Fixed a overflow problem in dump corrupting the dump when
705 very large files were encountered. Thanks to Vladimir Nadvornik
706 for the bug report.
707
708 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
709 kernel buffer/page cache before starting the dump, helping
710 a bit those who use dump on mounted filesystems. Thanks to
711 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
712 for this suggestion.
713
714 9. Updated the RPM spec file following the RedHat changes
715 (dynamically linked binaries now in /usr/sbin etc).
716
717 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
718 which enables restore to recognise multi volume compressed dumps
719 done on CD. Included his scripts for dump (which pipe the dump
720 output directly into cdrecord) and restore. There is now
721 possible to to backups to CD on the fly!
722
723 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
724 ===================================================================
725
726 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
727 Marcus Meissner (Caldera International Security Dept.).
728
729 2. Implement the Sun rmt extended protocol. Patch submitted
730 by Ian Gordon <iangordon@users.sourceforge.net>.
731
732 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
733 the linux kernel header. This ensures that dump always has the
734 latest version of this file. Patch submitted by
735 Andreas Dilger <adilger@turbolinux.com>.
736
737 4. Report any filesystem present in either /etc/fstab with a
738 positive passno or /etc/dumpdates in dump -w output.
739 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
740
741 5. Fixed the looping problem in dump introduced in the
742 previous version.
743
744 6. Changed the -B option of dump to limit the size of
745 _compressed_ output per volume if compression is on.
746 Patch contributed by Helmut Jarausch
747 <jarausch@igpm.rwth-aachen.de>. Note however that, since
748 it is impossible to predict the size of the compressed
749 data before doing the compression, the -B limit is a bit
750 conservative.
751
752 7. Fixed a bug in reading the operator typed file/tape path for
753 the next volume in restore.
754
755 8. Implemented a "-F script" option to restore which permits the
756 user to specify a script which will be launched at the
757 beginning of each tape, useful for automatic programming of
758 tape changers for example. See the restore man page for the
759 script parameters and return codes.
760
761 9. Small fix for the QFA routines provided by Uwe Gohlke
762 <uwe@ugsoft.de>, and some recommendations for QFA uses in
763 the man pages.
764
765 10. Fixed the multivolume restoring where making a mistake
766 to the 'Mount next tape' prompt caused several blocks to
767 be lost.
768
769 11. Enhanced the -e option of dump to take as a parameter a
770 comma separated list of inode numbers.
771
772 12. Added the -E option to dump which specify a file containing
773 inode numbers to exclude from the dump.
774
775 13. Fixed the compressed multi-volume dump + restore.
776
777 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
778 ==================================================================
779
780 1. Made dump report the number of blocks dumped per volume.
781 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
782
783 2. Fix a bug in dump where waiting too much at the 'change volumes'
784 question caused the volume to be rewritten. Thanks to
785 Graham Reed <greed@users.sourceforge.net> for reporting the
786 bug and providing a patch.
787
788 3. Added a compression option to dump, contributed by Jerry
789 Peters <gapeters@worldnet.att.net>.
790
791 WARNING: the compression works only on files/pipes and
792 drives supporting variable block size.
793
794 WARNING2: tapes created using the compression feature are
795 incompatible with the standard dump tape format, and a
796 version of restore >= 0.4b22 will be needed for extraction.
797
798 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
799 architectures. Thanks to Paul Slootman <paul@debian.org> for
800 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
801 it upstream.
802
803 5. Many cleanups (CPP defines, const char warnings, check of
804 ext2fs COMPAT flags, time_t cleanups, added libext2 version
805 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
806
807 6. Made --prefix option work in configure. All the install path
808 are now based on the configure parameters.
809
810 7. Added the Quick File Access mode in dump/restore, contributed
811 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
812 a file tape position for each inode, and this file is used by
813 restore (if called with parameter Q and the filename)
814 to directly position the tape at the file restore is currently
815 working on. This saves hours when restoring single files from
816 large backups, saves the tapes and the drive's head. Use
817 --enable-qfa option of configure to compile in the QFA support.
818
819 8. Added the possibility to dump several files and directories
820 in a single invocation of dump. Thanks to Uwe Gohlke
821 <uwe@ugsoft.de> for implementing this option.
822
823 9. Fixed the dumping and restoring of files with holes
824 (files ending with holes didn't get dumped or restored
825 correctly).
826
827 10. Fixed a socket descriptor leak in dump, which leaved opened
828 3 file descriptors per dump process (and there is one dump
829 process per tape).
830
831 11. Fixed dump large file system support, by explicit use of
832 open64/lseek64/etc functions (explicit use needed because
833 e2fsprogs libraries don't behave well when compiled with
834 FILE_OFFSET_BITS=64).
835
836 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
837 ======================================================================
838
839 1. Fixed some bugs in the dump -w|-W logic introduced by
840 the previous version. Thanks to Andreas Dilger
841 <adilger@turbolinux.com> for his help on this one.
842
843 2. Fixed again a compilation problem when using old e2fs
844 headers (filesystem label related). Thanks to many users
845 who reported this stupid error.
846
847 3. Fixed a build problem on old lib5 based systems dealing with
848 _PATH_MNTTAB being undefined. Thanks to John Adams
849 <johna@onevista.com> for reporting the bug.
850
851 4. Improved the error detection in restore when creating
852 the temporary files in TMPDIR. Now restore will corectly
853 report a 'no space left on device' error instead of
854 strange errors which could imply an archive corruption.
855 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
856 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
857
858 5. Added the throughput information in dump's progression
859 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
860 for the patch.
861
862 6. Use libext2fs's inode scanning routines, which are particularly
863 robust when dealing with errors (especially when having some
864 bad blocks on the filesystem). Many thanks to Colin
865 <colin@horizon.com> for reporting the bug, investigating
866 the issues, finding a workaround, writing the patch and
867 fully testing it... (of course, if this patch will break
868 anything, he is to blame for :-)).
869
870 7. Made dump and restore LFS aware. Dump can dump a filesystem
871 containing large files, generate a large file on output and
872 restore can restore them. This feature is not enabled by
873 default, use --enable-largefile option of configure to enable
874 it (you need to have a LFS aware glibc though). Thanks to
875 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
876 and to Theodore T'so <tytso@valinux.com> for his always
877 useful thoughts.
878
879 8. Made dump ask upon a tape write error if it should rewrite
880 the current volume (assume this is a bad tape) or if it should
881 assume an end-of-tape condition (useful for tape drives which
882 behaves badly at the end of the tape). Thanks to Andreas
883 Dilger <adilger@turbolinux.com> for the suggestion.
884
885 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
886 =======================================================================
887
888 1. Fixed a small compilation problem due to a change
889 in the definintion of the struct sigaction in
890 glibc 2.0 / libc5. Thanks to Gunther Schlegel
891 <schlegel@riege.de> for reporting the bug and to
892 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
893 a fix.
894
895 2. Modified the label and uuid analysis in order to be
896 self-contained (independant of kernel/libc headers). This
897 should fix the compile with older kernel/libc headers and
898 will preserve the functionality. Thanks to Bernhard Erdmann
899 <bernhard.erdmann@gmx.de> for reporting the bug.
900
901 3. The 'exclude inode' option, if applied to a directory
902 inode, excludes now correctly all the leaves of this
903 directory. Thanks to John R. Dennison
904 <gerdesas@users.sourceforge.net> for reporting the bug.
905
906 4. Fixed the '-e' option to disable the possibility
907 to exclude the root inode (which causes the dumps to
908 be unreadable by restore). Prevented array overflow
909 when multiple -e options are used.
910
911 5. Fixed dump to correctly interpret a filesystem argument
912 which is a mountpoint and it is not an absolute path
913 (as specified in the fstab). Thanks to Bernhard R. Erdmann
914 <be@berdmann.de> for reporting the bug.
915
916 6. Made dump able to backup files larger than 2 GB. Note that
917 dump still doesn't cope with files larger than 4 GB.
918
919 7. Restore the real uid and gid before invoking an external
920 RSH program (big hole when dump or restore is suid root!).
921
922 8. Get the values for the default tape device and the location
923 of fstab file from the system headers. Thanks to
924 Andreas Dilger <adilger@turbolinux.com> for the patch.
925
926 9. Made dump -w|-W report all recognized filesystems
927 present in either /etc/fstab or /etc/dumpdates, and present
928 the list in the same order as in fstab file. Thanks
929 to Andreas Dilger <adilger@turbolinux.com> for the patch.
930
931 10. Made dump's -a (automatic end of tape detection) the
932 default. Specifying one of -B, -c, -d or -s options will
933 override the EOM detection. Thanks to Andreas Dilger
934 <adilger@turbolinux.com> for the patch.
935
936 11. Save the ext2 filesystem label into the dump volume label.
937 Specifying a volume label on the command line (-L option)
938 will override this feature. Thanks to Andreas Dilger
939 <adilger@turbolinux.com> for the patch.
940
941 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
942 =====================================================================
943
944 1. Fixed the signal handling in dump (which I broke in 0.4b17)
945 which was causing several strange dump failures (dump
946 hanged or segmentation faults etc).
947
948 2. Specified the default blocksize in the dump man page.
949
950 3. Changed two info messages of restore to be written on stdout
951 instead of stderr in order to leave stderr only for errors
952 or warnings. Thanks to Stephen Atwell
953 <satwell@urbana.css.mot.com> for the suggestion.
954
955 4. Corrected an off by one calculation which prevented
956 dumping a directory having a 1 character name length.
957 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
958 for reporting the bug.
959
960 5. Reinforce dump in order to allow only level 0 and no
961 -u option when dumping a subdirectory, and document
962 this in the man page. Thanks to Bernhard Erdmann
963 <bernhard.erdmann@gmx.de> for reporting the bug.
964
965 6. Fixed a small harmless bug in restore which caused
966 in some conditions hard links to be restored several
967 times (therefore generation some warning messages).
968 Thanks to Kenneth Porter <shiva@well.com> for
969 reporting the bug.
970
971 7. Updated the RPM spec file to the latest RedHat version,
972 providing FHS packaging and other cosmetic changes.
973 You will need RPM version >= 3.0.5 in order to build the RPM.
974
975 8. Updated the configure script to check for libtermcap
976 before checking for libreadline, because we need this
977 library in order to compile the readline support.
978
979 9. Made dump understand the LABEL= and UUID= notation
980 both in /etc/fstab and on the command line. Note that
981 you will need the /proc filesystem in order to use
982 these notations. Thanks to Erik Troan <ewt@redhat.com>
983 for providing the patch.
984
985 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
986 ===================================================================
987
988 1. Fixed a potential buffer overflow in restore. Thanks
989 to Stan Bubrouski <satan@fastdial.net> for reporting
990 the bug.
991
992 2. Fixed a readline-related bug which prevented
993 'cat DUMPFILE | restore -i -f -' from working. Thanks
994 to Charles Karney <karney@users.sourceforge.net>
995 for the bug report.
996
997 3. Changed a few "panic" into "exit", causing restore to
998 be more stable against some attacks (like the last one
999 reported on Bugtraq, although the last version of restore
1000 was not vulnerable - just dumped core). Thanks to
1001 Andreas Hasenack <andreas@conectiva.com.br> for reporting
1002 the bugs to me.
1003
1004 4. Removed the suid-root bit on dump and restore in the
1005 default build (and generated RPMs). It should be safer
1006 now. Users who need the suid-root capabilities in order
1007 to make network backups should read first the man page
1008 of dump and enable the suid bit manually.
1009
1010 5. Added -ltermcap to the compile parameters for restore
1011 when using readline support, in order to make the compile
1012 process work on some systems (SuSE ?). Thanks to
1013 Patrik Schindler <poc@pocnet.net> for reporting the bug.
1014
1015 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
1016 ====================================================================
1017
1018 1. The -F script is called now *only* at the end of a tape,
1019 not at the end of the dump. Thanks to Christian Haul
1020 <haul@informatik.tu-darmstadt.de> for the bug report.
1021
1022 Normally, the device name and the current volume number
1023 are passed on the command line of the script. However,
1024 if you want the old style script (with no arguments
1025 passed on the command line), you can enable it in
1026 configure with the --enable-oldstylefscript.
1027
1028 2. Use posix signal handling to preserve dump functionality
1029 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
1030 the patch.
1031
1032 3. Made the exit code of restore in case of a 'C'ompare
1033 command reflect the result of the compare. An exit status
1034 of 0 means the dump archive is correct, 1 means tape errors,
1035 2 means that some files were modified. Thanks to Kenneth Porter
1036 <shiva@well.com> for the suggestion.
1037
1038 4. Made (finally) quotes work in interactive restore.
1039
1040 5. Small fixes in order to allow dump to compile with a
1041 really old e2fsprogs version. Thanks to Ian Zimmerman
1042 <itz@speakeasy.org> for the bug report.
1043
1044 6. Add GNU readline capabilities to interactive restore.
1045 Use configure's --enable-readline flag to enable this feature.
1046 Thanks to Patrik Schindler <poc@pocnet.net> for the
1047 suggestion.
1048
1049 7. Do the compare on the fly in restore 'C' mode (this will
1050 allow not to exhaust the available /tmp space when
1051 ccmparing large files). Thanks to Kenneth Porter
1052 <shiva@well.com> for the suggestion.
1053
1054 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
1055 ====================================================================
1056
1057 1. Fixed some several duplicate 'DUMP: DUMP:' in the
1058 output of dump.
1059
1060 2. Corrected the estimation of blocks to dump. Note that
1061 this is still wrong for large directory inodes, due
1062 to the size of a BSD directory entry on the tape
1063 (estimation is based on the size of the ext2 directory,
1064 which is smaller because it doesn't contain the null
1065 character at the end).
1066
1067 3. Made dump report the total number of MB written to
1068 tape at the end of run. Thanks to W. Reilly Cooley
1069 <wcooley@nakedape.cc> for the patch.
1070
1071 4. Added the -X option to restore giving the possibility
1072 to read the names of the files to be extracted/listed
1073 from a text file (in addition of the command line).
1074 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
1075 patch.
1076
1077 5. Added the device name and the current volume number
1078 as arguments to the end of tape script (dump -F option).
1079
1080 6. Made the multi-volume dump work again (after having
1081 broken it in 0.4b15).
1082
1083 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
1084 ===================================================================
1085
1086 1. Added a prompt command in interactive restore mode. Thanks
1087 to Andreas Dilger <adilger@home.com> for the patch.
1088
1089 2. Fixed a buffer overflow problem in dump (caused by
1090 not checking the size of the filesystem parameter).
1091 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
1092 reporting this on Bugtraq (and to several dump users
1093 who forwarded me his mail).
1094
1095 3. Added the '-F script' option to dump in order to
1096 launch a script at the end of each tape (to be used
1097 with a tape changer, or to notify the sysadmin by
1098 pager etc.).
1099
1100 4. Fixed a bug in restore compare code caused by the changes
1101 I made in 0.4b14.
1102
1103 5. Fixed the treatment of options using the old BSD syntax
1104 in both dump and restore.
1105
1106 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
1107 =======================================================================
1108
1109 1. Fixed a bug in dump which may have caused invalid deleted
1110 directories to be dumped out if they were deleted after the
1111 mapping pass. This could occure on active filesystem and lead
1112 to heap corruption (causing dump malfunction in many possible ways).
1113 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
1114 bug and submitting the patch.
1115
1116 2. Fixed the handling of the filesystem parameter in dump. A
1117 '/mnt/disk' parameter caused the disk contents to be dumped,
1118 but a '/mnt/disk/' parameter caused the mountpoint directory
1119 to be dumped (generally an empty directory).
1120
1121 3. Improved the output of dump in order to tell which directory
1122 it is currently dumping (when dumping a subtree).
1123
1124 4. Added the '-e' exclude inode option to dump. Thanks to
1125 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
1126
1127 5. Added a REPORTING-BUGS file in order to provide a guide
1128 on how to correctly report a bug in dump/restore.
1129
1130 6. Fixed a restore problem when restoring a hard link to an inode
1131 having the immutable or append-only attribute set. Thanks to
1132 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
1133
1134 7. Fixed a compatibility problem between dumps made on little
1135 endian machines (the format was correct) and big endian
1136 machines (the format was incorrect). This fix break the
1137 compatibility with the older dumps made on big endian
1138 machines (sparc, m86k, ppc etc). For the first time in
1139 linux dump's history (I believe), the dumps made by *BSD,
1140 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
1141 so interchangeable. Thanks to Rob Cermak
1142 <cermak@ahab.rutgers.edu> for submitting the bug and
1143 helping me test the fix.
1144
1145 8. Fixed the way dump reports the remaining percent/time, if
1146 the number of blocks actually dumped exceeds the estimated
1147 number of blocks. Thanks to Jean-Paul van der Jagt
1148 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
1149
1150 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
1151 ======================================================================
1152
1153 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
1154 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
1155
1156 2. Removed the requirement to build the RPM as root from the
1157 spec file. Thanks to Christian Weisgerber
1158 <naddy@mips.rhein-neckar.de> for submitting this.
1159
1160 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1161 causing dump to block when dumping really huge filesystems.
1162 Many thanks to Patrik Schindler <poc@pocnet.net> for
1163 helping me find this bug.
1164
1165 4. Fixed the treatment for an interrupt signal when dump access
1166 the remote tape through RSH. Thanks to Christian Weisgerber
1167 <naddy@mips.rhein-neckar.de> for providing the patch.
1168
1169 5. Fixed a bug which was causing dump/restore to display
1170 garbage characters instead of the remote host name.
1171
1172 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1173 =====================================================================
1174
1175 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1176 <kukuk@suse.de> for submitting the patch.
1177
1178 2. Fix for the exit code when using the size estimate option of
1179 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1180 submitting the patch.
1181
1182 3. Handle EINTR in atomical reads/writes in dump, which was causing
1183 dump to fail on some systems. Thanks to Eric Jergensen
1184 <eric@dvns.com> for reporting the bug and submitting the patch.
1185
1186 4. Handle more than 16 characters for the device names in dumpdates.
1187 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1188 tracking down the problem and proposing the solution.
1189
1190 5. Fixed a bug in dump which prevented the creation of the
1191 dumpdates file when doing a 0-level dump without already
1192 having a dumpdates file. Thanks to Patrik Schindler
1193 <poc@pocnet.net> for reporting the bug.
1194
1195 6. Changed the way dump 'S' flag reports the size estimate
1196 from number of blocks into bytes (making it compatible
1197 with the Solaris version, and simplifying things for
1198 amanda users). Thanks to Jason L Tibbitts III
1199 <tibbs@math.uh.edu> for reporting the bug.
1200
1201 7. Fixed a compatibility problem in linux/alpha dump tape format.
1202 Now the linux/alpha dump are (again) compatible with the
1203 other dump formats. But this breaks compatibility with
1204 older dumps made on alpha. Thanks to Mike Tibor
1205 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1206
1207 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1208 ======================================================================
1209
1210 1. Added a '--enable-kerberos' to configure.
1211
1212 2. Added a 'S' option to dump which determines the amount of space
1213 that is needed to perform the dump without actually doing it, similar
1214 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1215 <cermak@ahab.rutgers.edu>.
1216
1217 3. Added a 'M' multi-volume option to dump and restore which enables
1218 dumping to multiple files (useful when dumping to an ext2
1219 partition to make several dump files in order to bypass the 2GB
1220 file size limitation). The 'f' argument is treated as a prefix and
1221 the output files will be named <prefix>001, <prefix>002 etc. With
1222 the 'M' flag, restore automatically selects the right file without
1223 asking to enter a new tape each time.
1224
1225 4. Fixed a memory leak which was causing dump to grow very big
1226 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1227 Fearon <jasonf@netrider.org.au> for reporting the bug.
1228
1229 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1230 ======================================================================
1231
1232 1. Make configure test if the system glob routines support
1233 extended syntax (ALTDIRFUNC). If not, use the internal glob
1234 routines instead of system ones. Thanks to Bernhard Sadlowski
1235 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1236 and helping me resolve this and other minor libc5 compiling
1237 glitches.
1238
1239 2. Fix a problem when dumping a ext2fs with the 'filetype'
1240 feature enabled. Thanks to Patrick J. LoPresti
1241 <patl@cag.lcs.mit.edu> for reporting the bug and to
1242 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1243
1244 3. Made the nodump flag work on directories. A directory which
1245 has the nodump flag gets never dumped, regardless of its
1246 contents.
1247
1248 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1249 which allows dump on an active ext3 filesystem. However, this
1250 is a "quick and dirty" patch which enables backup of an ext3
1251 filesystem through the ext2 compatibility (by ignoring the
1252 NEEDS_RECOVERY bit). The journal file is not recognized and
1253 it is dumped (it should not).
1254
1255 5. Test the superblock compatibility flags when dumping, in order
1256 to be sure that we know how to deal with specific features.
1257
1258 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1259 ====================================================================
1260
1261 1. Use lchown instead of chown, fixing a possible security problem
1262 when restoring symlinks (a malicious user could use this
1263 to deliberately corrupt the ownership of important system files).
1264 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1265 this and providing the patch.
1266
1267 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1268 ====================================================================
1269
1270 1. Put dump sources under CVS, added Id tags in all files so
1271 one can use 'ident' on binary files.
1272
1273 2. Added the dump/restore version in the usage text so one can
1274 easily verify the version he is using.
1275
1276 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1277 a va_start/va_end problem on linux-ppc (always call va_start
1278 va_end in pairs each time we use a vararg function).
1279
1280 4. Added again the DT_* constants because old libc does not
1281 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1282 for submitting the bug report.
1283
1284 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1285 this should enable dumping big (huge) filesystems.
1286
1287 6. Added the RSH environment variable in order to be able to
1288 use a rsh replacement like ssh when doing remote backups (and
1289 bypass the security limitations of rcmd). Now you can do remote
1290 backups without being root (or making dump setuid root).
1291
1292 7. Modified again the way dumpdates works. For incremental dumps,
1293 we need to read dumpdates even if we are not using 'u' option.
1294 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1295 this should work.
1296
1297 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1298 ===================================================================
1299
1300 1. Removed the 'k' flag from the restore 'about' text if kerberos
1301 was not compiled in.
1302
1303 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1304 to them (fsetflags takes a char*, setflags an open fd!).
1305
1306 3. (f)setflags is called only if the flags aren't empty. If the
1307 file is a special file, a warning is printed, because changing
1308 flags implies opening the device. Normally, a special file
1309 should not have any flag... (Debian bug #29775, patch provided
1310 by Abhijit Dasgupta <abhijit@ans.net>).
1311
1312 4. Made possible to dump a file system not mentioned in /etc/fstab.
1313 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1314
1315 5. Changed the default behaviour to not create dumpdates
1316 unless 'u' option is specified. Removed the old "debian-patch"
1317 which provided the same thing. (Debian bug #38136, #33818).
1318
1319 6. Removed all those dump*announce, since they were getting old...
1320
1321 7. Added warning messages if dumpdates does not exist and
1322 when an inferior level dump does not exist (except for a level 0
1323 dump).
1324
1325 8. Debugged the glob calls in interactive mode: restore used a
1326 dirent struct which was different from the /usr/include/dirent.h
1327 one (this used to work, is it a glibc2 change?), so none of the
1328 compat glob (which used /usr/include/dirent.h) or the system glob
1329 worked. Restore use now the system dirent (and the system
1330 DT_* constants), which are compatible with BSD ones.
1331
1332 9. Added a configure flag (--with-dumpdatespath) to specify
1333 the location of dumpdates file. By default, it is
1334 /etc/dumpdates.
1335
1336 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1337 included the current date/version in man pages.
1338
1339 11. Corrected the estimation of remaining time when
1340 the operator doesn't change the tapes quickly enough. This
1341 was an old bug, I thought I corrected it, and discovered
1342 that in fact it was corrected in two different places, so
1343 the results canceled each other...
1344
1345 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1346 ===================================================================
1347
1348 1. Integrated multiple patches from RedHat, Debian and SuSE:
1349
1350 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1351 isn't specified.
1352 - several fixes in the man pages.
1353 - update the default tape device to /dev/st0.
1354 - many updates for Linux Alpha (byte ordering, size_t etc).
1355 - buffer overruns.
1356 - use environment variable for TMPDIR (instead of /tmp).
1357 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1358 - workaround egcs bug (RedHat bugs #4281 and #2989).
1359 - wire $(OPT) throughout Makefile's.
1360
1361 2. Upgrade the dump revision to 1, making possible to dump filesystems
1362 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1363
1364 3. Fix some compile warnings, prototype all functions.
1365
1366 4. Use glibc err/glob instead of internal compatibility
1367 routines (only if available).
1368
1369 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1370 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1371
1372 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1373 ======================================================================
1374
1375 1. Integrated the changes from FreeBSD-3.1-RELEASE
1376 (mostly bug fixes, buffer overruns, dump has now an "automatic
1377 tape length calculation" flag, dump/restore can use kerberos now
1378 (this is NOT tested), use environment variables for TAPE and
1379 RMT etc.).
1380
1381 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1382
1383 3. Corrected a bug in restore when using 'C' option with multi-volumes
1384 tapes (files splited accros two tapes give "size changed" errors
1385 when comparing).
1386
1387 4. Corrected the long standing bug when dumping multiple tapes.
1388 This works for me, needs further testing.
1389
1390 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1391 ====================================================================
1392
1393 1. Dump now runs correctly on kernels 2.1.x
1394 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1395
1396 Changes between versions 0.4b2 and 0.4b3
1397 ========================================
1398
1399 1. Use realpath() if available
1400
1401 2. Report statistics
1402
1403 Changes between versions 0.4b1 and 0.4b2
1404 ========================================
1405
1406 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1407 the patch)
1408
1409 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1410
1411 3. Fixed configure.in to correctly handle --enable-rmt
1412
1413 Changes between versions 0.3 and 0.4b1
1414 ======================================
1415
1416 1. Integrated the changes from 4.4BSD-Lite2
1417
1418 2. Integrated the patches from Debian and Red Hat
1419
1420 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1421
1422 4. Changed dump to use the Ext2fs library to get block addresses. This
1423 should solve the endianness problem on SparcLinux.
1424
1425 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1426 distribution's one) to use autoconf
1427
1428 6. Fixed a few minor bugs
1429
1430 Changes between versions 0.2e and 0.2f
1431 ======================================
1432
1433 1. Added the creation of named pipes (fifos) in restore.
1434
1435 2. Added the -N flag in the restore manual page.
1436
1437 3. Added the file kernel.patch which contains the llseek() optimization
1438 patch for 1.2.x kernels.
1439
1440 4. Fixed a bug in the restoration of symbolic links: owner and group were
1441 not restored.
1442
1443 5. Integrated some changes from FreeBSD 2.2.
1444
1445 6. Added a call to ftruncate() after restoring each file to restore
1446 correctly files ending by a hole.
1447
1448 Changes between versions 0.2d and 0.2e
1449 ======================================
1450
1451 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1452 with owner = root (0) and group = root/wheel/whatever (0).
1453
1454 Changes between versions 0.2c and 0.2d
1455 ======================================
1456
1457 1. Dump is now able to backup 2GB+ filesystems.
1458
1459 2. Dump and restore can now be linked as static binaries.
1460
1461 Changes between versions 0.2b and 0.2c
1462 ======================================
1463
1464 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1465
1466 Changes between versions 0.2a and 0.2b
1467 ======================================
1468
1469 1. Really fixed the bug that I should have corrected in 0.2a.
1470
1471 2. Enabled optimization again.
1472
1473 Changes between versions 0.2 and 0.2a
1474 =====================================
1475
1476 1. Disabled the optimization during compilation.
1477
1478 Changes between versions 0.1 and 0.2
1479 ====================================
1480
1481 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1482 the fs_type field (actually, I modified the file fstab.c to make it
1483 use the mntent functions).
1484
1485 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1486 made by dump should be readable by the BSD restore and backups made
1487 by the BSD dump should be readable by restore. Unfortunately, this
1488 means that the dump format has changed between version 0.1 and version
1489 0.2 :-(
1490
1491 3. Dump is now able to backup a subtree, it is no longer limited to whole
1492 filesystems like the BSD version.
1493
1494 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1495 than 2 GB.
1496
1497 Changes between versions 0.0 and 0.1
1498 ====================================
1499
1500 1. Now create links rdump and rrestore during the `make install' step.
1501
1502 2. Linux port specific bugs added to the manual pages
1503
1504 3. Incorrect estimation of the number of tapes blocks fixed when doing
1505 incremental backups.
1506
1507 4. Better ls-like format in restore in interactive mode.