A wrong line in /etc/fstab containing LABEL=... could prevent dump from running....
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.253 2004/07/05 15:12:44 stelian Exp $
2
3 Changes between versions 0.4b36 and 0.4b37 (released ??????????????)
4 ====================================================================
5
6 1. Added the --enable-staticz configure option which enables
7 dump and restore to be linked with static versions of
8 libz and libbz2 (and dynamic versions of all other libraries).
9 This will make Debian users happy, because libz and libbz2
10 were the only needed libraries living in /usr, all the
11 others live in /lib. In case of system emergency, it is
12 better not to have to rely on an extra filesystem.
13 Thanks to Bdale Garbee <bdale@gag.com> for the suggestion.
14
15 2. Fix compilation on (at least the Linux Debian port to) AMD64.
16 (<ext2fs/ext2_types.h> defines some types (__s64 and __u64)
17 that are also defined by <linux/types.h> (<asm/types.h>) and
18 they conflict).
19
20 3. Make dump's reading of the dumpdates file a bit more robust,
21 preventing dump from crashing when the dumpdates file has
22 been modified by hand.
23
24 4. Fixed some offset calculations in dump code which could
25 lead to "bread lseek errors" on large filesystems. Thanks
26 to Bruce Lowekamp <lowekamp@users.sourceforge.net> for
27 reporting this bug and debugging the issue.
28
29 5. Made dump use the blkid library when searching for devices
30 by label or uuid instead of dump's own routines.
31
32 6. Corrected a bug in dump where a wrong LABEL=... line in
33 /etc/fstab could prevent dump from dumping unrelated
34 filesystems. Thanks to Bruce Lowekamp
35 <lowekamp@users.sourceforge.net> for reporting the bug.
36
37 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
38 ====================================================================
39
40 1. Fixed dump compilation with old gcc versions. Thanks to
41 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
42
43 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
44 when compiling against a recent glibc version.
45
46 3. Fixed a bug in restore preventing the read of a dump tape
47 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
48 <phiggins@transzap.com> for reporting the bug and providing
49 the test case.
50
51 4. Changed dump to enable the creation of volumes of different
52 sizes in a single run (make -B accept a list of values).
53 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
54
55 5. Use the glibc provided minor() and major() macros instead
56 of our own bitmask implementation. This should be safe for
57 when the major/minor namespace will migrate to 32 bits.
58 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
59 the bug.
60
61 6. Made explicit in the dump man page that dump will not create
62 a remote file, it will only write to an already existing one.
63
64 7. Another try at making size estimates better again.
65
66 8. Put back the inconditional running of the end-of-tape
67 script which was changed in 0.434 to be run only when -M
68 or multiple -f were NOT specified. Some users rely on this
69 feature even when it is combined with -M/-f.
70
71 9. Fixed restore when restoring huge backups (where rstdir...
72 temporary files are over 2GB). Thanks to
73 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
74 debugging the issue and making the patch.
75
76 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
77 David <vrtin@users.sourceforge.net> for submitting the bug
78 and providing a test case.
79
80 11. Made dump work with an arbitrary integer level (no more 10
81 levels only limitation). Thanks to Matthew
82 <msvincen@midway.uchicago.edu> for the patch.
83
84 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
85 =======================================================================
86
87 1. Added a note in the dump man page saying that the default
88 blocksize can be 32 if -d is used with a high density argument.
89 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
90 for the patch.
91
92 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
93 LDFLAGS environment variables. Thanks to Arcady Genkin
94 <antipode@users.sourceforge.net> for reporting the bug.
95
96 3. Made -e/-E options of dump accept an unlimited number of inodes
97 to be excluded, rather than a hardcoded maximum. Thanks to
98 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
99
100 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
101 and -D_USE_BSD_SIGNAL defines in configure in order to solve
102 64bit build problems because quad_t is redifined with a
103 different signature. Thanks to Mike Harris <mharris@redhat.com>
104 for reporting this bug.
105
106 5. Made restore build on Solaris, making possible to
107 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
108 <uwe@ugsoft.de> for the patch.
109
110 6. Made an extension in the dump tape format capable of saving
111 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
112 wrote the extension and contributed the restore code back
113 into this codebase. The same extension mechanism will be
114 used in the future to save ACLs...
115
116 7. Made rmt work correctly with regard to QFA and local/remote
117 files and tapes. The remote access will however work only
118 when the dump provided rmt version is used. If you want to
119 use another rmt server, please do not use the QFA feature.
120 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
121
122 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
123 ====================================================================
124
125 1. Fixed the INSTALL file to reflect the actual install paths.
126 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
127 reporting the bug.
128
129 2. Fixed the configure script to only check for headers presence
130 instead of trying to compile them. This should fix issues
131 with old build environments. Thanks to Kari Lempiainen
132 <kari@funky.pp.fi> for reporting the bug.
133
134 3. Fixed restore to correctly ignore sockets when comparing
135 a dump (as socket cannot be properly restored anyway). Thanks
136 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
137
138 4. Fixed restore to correctly access the archive file (-A argument)
139 even when using a remote tape. Thanks to Fabrice Bellet
140 <fabrice@bellet.info> for reporting the bug.
141
142 5. Fixed (again) handling of long (largefile) seeks in rmt.
143 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
144 the bug.
145
146 6. Fixed restore corner case when dealing with large block sizes
147 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
148 <fabrice@bellet.info> for reporting the bug.
149
150 7. Fixed a bug preventing dump to access a filesystem having
151 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
152 for reporting the bug.
153
154 8. Made dump store dump dates using explicit timezones, fixing a
155 problem with incremental dumps if the timezone is modified
156 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
157 the bug report and the patch.
158
159 9. Fixed a bug encountered when dumping individual files (not full
160 filesystems or directories) and dangling symbolic links happen
161 to be in the list of files. For as far as dump is concerned,
162 dangling symbolic links are allowed, and are dumped as is.
163 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
164 bug and providing the fix.
165
166 10. Fixed open and creation modes and permissions for QFA and
167 table-of-contents files in dump and restore. Thanks to
168 Philippe Troin <phil@fifi.org> for the patch.
169
170 11. Fixed the archive file descriptor handling enabling it to be 0.
171 This can happen in some cases when shell redirections are used.
172 Thanks to Philippe Troin <phil@fifi.org> for the patch.
173
174 12. Delayed the opening of archive file until after suid had been
175 dropped (fixing a possible security issue if dump is suid).
176 Thanks to Philippe Troin <phil@fifi.org> for the patch.
177
178 13. Fixed the 'S' command handling in the rmt client part.
179 Thanks to Philippe Troin <phil@fifi.org> for the patch.
180
181 14. Modified the end-of-tape script handling to print out statistics
182 (and stop the timer) before launching the eot script. Also, the eot
183 script does not get run anymore when using -M (which makes sense) or
184 when multiple tapes are listed on the command line
185 (-f tape0,tape1,tapen) (which also makes sense).
186 Thanks to Philippe Troin <phil@fifi.org> for the patch.
187
188 15. Relicensed dump/restore under the 'revised' BSD license, as per
189 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
190
191 16. Added LZO compression to dump. This new compression method has
192 the advantage of being super fast, thus not killing tape streaming
193 on slow machines. Thanks to Helmut Jarausch
194 <jarausch@igpm.rwth-aachen.de> for the patch and to
195 Markus Oberhumer <markus@oberhumer.com> for giving special permission
196 to include his miniLZO project (GPL licensed) in dump/restore.
197
198 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
199 <ant@notatla.demon.co.uk> for reporting the bugs.
200
201 18. Added a special rmt version which can do encryption when writing
202 to tape. Read examples/encrypted_rmt/README for details on
203 how to enable and configure it. Thanks to Ken Lalonde
204 <ken@globalremit.com> for the patch.
205
206 19. Made dump work with 2.5 kernel end of tape early warning semantics.
207 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
208
209 20. Fixed a bug which caused dump -w|-W not to work anymore, because
210 the fs_freq and fs_passno fields in /etc/mtab are always set
211 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
212 reporting the bug.
213
214 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
215 =======================================================================
216
217 1. Added a note in the restore man page clarifying the question
218 'set the permissions on the current directory ?' asked by
219 restore at the end of treatment in -i and -x modes.
220
221 2. Fixed the endianess issues when reading compressed tapes.
222 Thanks to Dark Force <daq4th@users.sourceforge.net> for
223 reporting this bug and providing test cases.
224
225 3. Fixed the "ACL won't be dumped" warning message (which showed
226 an extra, unrelated error message). Thanks to Dragan Krnic
227 <dkrnic@lycos.com> for reporting this bug.
228
229 4. Made dump look first into /etc/mtab, then into /etc/fstab
230 when searching for filesystem paths. Also fixed some problems
231 caused by binding mounts or multiple block device mounts.
232 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
233 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
234 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
235 and #160305, Sourceforge bugs #618699 and #679832).
236
237 5. Made dump's -I option accept the value '0' meaning all the
238 read errors will be ignored. This can be useful when running
239 dump from unattended sessions (like cron jobs). Thanks to
240 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
241
242 6. Fixed the output of dump to indicate 'blocks' instead of
243 'tape blocks' in the various messages (blocks are always
244 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
245 made it clearly print the current blocksize at the start of
246 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
247 the suggestions.
248
249 7. Made rmt understand long (largefiles) seeks.
250
251 8. Fixed build with very old versions of libext2fs, where
252 EXT2_FT_* constants were undefined.
253
254 9. Made dump accept the dumpdates path on the command line
255 (-D file option) instead of using only the hardcoded one.
256 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
257 suggestion.
258
259 10. Enabled rmt, LFS, readline, QFA options by default in
260 ./configure. Updated the configure process (new versions
261 of config.guess, config.sub etc).
262
263 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
264 =======================================================================
265
266 1. Changed dump to use fcntl(F_SETLK) style locking instead
267 of flock() when locking the dumpdates file. With the old
268 locking scheme, a local user having read rights on the
269 dumpdates file could be able to do a Denial of Service attack
270 on dump. In order to lock the dumpdates file with the new
271 scheme, the user would need to have write access on the file.
272 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
273 reporting the bug (originally a bugtraq post).
274
275 2. Fixed interactive 'ls' which caused spurious errors warnings
276 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
277 <jorgen_ostling@users.sourceforge.net> for reporting this
278 bug.
279
280 3. Fixed dump's estimate when dealing with sparse inodes.
281
282 4. Modified dump to allow setting a blocksize bigger than 32kB
283 (raised the limit to 1024kB), because newer hardware needs
284 this for proper operation. Thanks to Dirk Traenapp
285 <dtraenapp@users.sourceforge.net> for reporting this.
286
287 5. Fixed a bug causing Dump to stop and report an error if an
288 inode number in the exclude file was followed by some amount
289 of whitespace. Thanks to Jeffrey Sofferin
290 <sofferin@users.sourceforge.net> for reporting this bug.
291
292 6. Fixed a bug which caused restore, in some particular cases,
293 to ask some 'scary' questions and leave a bunch of RSTTMP
294 directories behind when restoring incremental tapes. Thanks
295 to Philippe Troin <phil@fifi.org> for reporting this bug and
296 providing the test cases.
297
298 7. Changed the wording when inodes are excluded from dump:
299 replaced 'Added inode 7 to exclude list' with
300 'Excluding inode 7 (resize inode) from dump', as suggested
301 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
302
303 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
304 ===================================================================
305
306 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
307 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
308 <eros@lamel.bo.cnr.it> for reporting the bug.
309
310 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
311 ===================================================================
312
313 1. Made dump print out the ext2 logical block number in case of a read
314 error, which can be given as an argument to debugfs' ncheck command,
315 in order to find out the affected inode. Added note about this
316 usage in dump's man page.
317
318 2. Fixed a problem in restore when reading tapes written on big
319 endian machines with very old versions of dump. The patch was
320 contributed by George Helffrich <george@geology.bristol.ac.uk>.
321
322 3. Fixed the tape length calculation when using large tapes
323 and compression. Thanks to Georg Lippold
324 <g_lippold@sourceforge.net> for reporting the bug.
325
326 4. Added a new set of examples in dump_on_cd_2 directory, based
327 on dump_on_cd examples but somewhat enhanced, supporting DVD
328 media, and localized in english and german. Thanks to
329 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
330
331 5. Made dump save 32 bit UID/GID. Internally, this was achieved
332 by switching from the old BSD inode format to the new BSD
333 inode format, which means that the tape format was changed.
334 However, since all restore versions out there should
335 transparently support both inode formats, the change should
336 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
337 reporting the bug.
338
339 6. Fixed a lot of warnings in the code shown when compiling
340 with 'gcc -W'. Thanks to Matthias Andree
341 <matthias.andree@stud.uni-dortmund.de> for reporting this.
342
343 7. Fixed a small markup bug in the dump man page. Thanks to
344 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
345 patch.
346
347 8. Rewrote entirely the man pages using the tmac.an macro
348 package (Linux man page format) instead of the original BSD
349 format. They should be now cleaner and easier to modify.
350
351 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
352 ==================================================================
353
354 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
355 non Linux clients were misinterpreted. The description of the problem
356 (incompatible numbering in Linux mtio opcodes) is documented at
357 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
358 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
359 providing an excellent, cross-platform replacement for rmt in his
360 star package.
361
362 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
363 which caused restore to fail when the inode maps were not entirely
364 contained on the first volume (when using really small volumes or
365 when dumping a huge number of inodes).
366
367 3. Fixed a problem in dump, where files in subdirectories of directories
368 that have the nodump flag set (or being excluded with -e/-E) were
369 sometimes incorrectly dumped (instead of being excluded). The original
370 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
371 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
372 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
373 help testing the patch.
374
375 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
376 which makes one able to pipe the output of dump, by the net, to
377 a remote CD-burner server.
378
379 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
380 and use GNU's symbolic syntax over rmt instead of numerical values
381 to assure multiple platform compatibility.
382
383 6. Documented the -d option in restore.
384
385 7. Added a -v (verbose) mode to dump. For now it just prints the number
386 of the inode being dumped, but this could evolve in future versions
387 to include interesting debugging output.
388
389 8. Added a -o flag to restore, which automatically restores the current
390 directory permissions in -i or -x mode, without asking the operator
391 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
392 and Peter Samuel <peters@e-smith.com>.
393
394 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
395 ====================================================================
396
397 1. Fixed a bug in the QFA feature which could have caused
398 a bad tape positionning on restore (causing extra delays in
399 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
400
401 2. Added a small note in the dump man page specifying that
402 there should be no white space between the option letter and
403 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
404
405 3. Made restore work with older versions of the readline library,
406 by checking in configure for several extended symbols. Restore
407 can now be compiled with a readline as old as the 2.0 release
408 (though it may be a good idea to upgrade it to a more recent
409 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
410 reporting the build failures.
411
412 4. Fixed a performance problem with the QFA file creation in
413 dump, which made unnecessary seeks on the tape slowing down
414 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
415 reporting this issue.
416
417 5. Removed the inclusion of some kernel headers in the dump
418 source, which prevented the compile in some kernel/glibc
419 headers/architecture combination. Thanks to Bdale Garbee
420 <bdale@gag.com> for reporting the bug.
421
422 6. Added the appropriate error message when dump fails to
423 open the output file for writing. Thanks to Amith Varghese
424 <amithv@yahoo.com> for reporting this bug.
425
426 7. Made restore able to understand large Solaris ufsdump tapes
427 (containing inodes bigger than 4194304). Sun have introduced
428 an "extension" to the dump tape format when dealing with
429 those inodes, which was uncorrectly handled by Linux restore.
430 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
431 providing a test case.
432
433 8. Added the -m parameter to dump which optimises the output for
434 inodes having been changed but not modified since the last dump
435 ('changed' and 'modified' have the meaning defined in stat(2)).
436 For those inodes, dump will save only the metadata, instead of
437 saving the entire inode contents. Inodes which are either
438 directories or have been modified since the last dump are saved
439 in a regular way. Uses of this flag must be consistent, meaning
440 that either every dump in an incremental dump set have the flag,
441 or no one has it.
442
443 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
444 =======================================================================
445
446 1. Fixed behaviour of dump when exceeding resource limits
447 (SIGXFSZ treatment).
448
449 2. Added the -L flag to restore to allow the user to specify a
450 maximal allowed number of miscompares when using restore
451 with the -C option to check the backup.
452
453 3. Detailed the manual entry for the -N option of restore.
454
455 4. Added the -a flag to restore to make able doing unattended
456 restores in -i or -x mode (automatically walks through the
457 multiple dump volumes).
458
459 5. Extended the QFA mode to work with local files and/or
460 remote tapes and files. This way, restore can know in advance
461 the tape number and the offset for the inodes to extract and
462 can minimize the extraction time by seeking directly to the
463 good tape/offset.
464
465 6. Added the -A <archive> option to both dump and restore,
466 which makes dump to archive a dump table-of-contents in
467 the specified file to be used by restore to determine
468 whether a file is in the dump file that is being restored.
469 (the archive file syntax is also compatible with the
470 Solaris ufsdump generated one).
471
472 7. Small fix in restore making it able to read some (broken ?)
473 Solaris ufsdump tapes.
474
475 8. Fixed dump to correctly recognise the root filesystem when using
476 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
477 for reporting this bug.
478
479 9. Added the -P <file> option to restore to create a
480 Quick File Access file from an already made dump. Patch
481 contributed by Uwe Gohlke <uwe@ugsoft.de>.
482
483 10. Made restore compile and run on Solaris, making it a
484 possible replacement for the standard ufsrestore. Port was
485 contributed by Uwe Gohlke <uwe@ugsoft.de>.
486
487 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
488 =====================================================================
489
490 1. Added a set of backup scripts from Eugenio Diaz
491 <getnito@yahoo.com> in the examples section. It features
492 automatic (cron based) full and incremental dumping of
493 several filesystems on a separate filesystem.
494
495 2. Fixed a off-by-one miscalculation which disabled dumping
496 a one letter subdirectory. Thanks to Chris Siebenmann
497 <cks@utcc.utoronto.ca> for reporting the bug.
498
499 3. Fixed several restore bugs occuring when trying to
500 restore some missing files on the tape. Thanks to Chris
501 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
502
503 4. Fixed --with-ldopts configure argument passing, installing from
504 a separate object directory, makefile cleanups contributed
505 by <splite@purdue.edu>.
506
507 5. Fix a bug which could caused, in some conditions, the highest
508 number inode of a filesystem, to not be dumped. Many thanks
509 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
510 chase this bug.
511
512 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
513 =======================================================================
514
515 1. Added a mini howto from Patrick Walsh in the examples
516 directory.
517
518 2. Minor man pages syntax corrections. Thanks to
519 Chris Danis <screechco@home.com> for reporting the bugs.
520
521 3. Added a script from David B. Peterson <dave@toppledwagon.com>
522 to the examples section. It features dumping several
523 filesystems to a remote tape drive upon ssh.
524
525 4. Added a patch provided by Richard Jones <rich@annexia.org>
526 which allows BRADEMAX (number of read errors tolerated by
527 dump) to be adjusted using the -I option.
528
529 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
530 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
531 patch.
532
533 6. Add the -l option to restore to specify if, when doing a
534 remote restore, the file used to access the backup is a
535 regular file (the defaults being a tape drive). Restore needs
536 to know this information when reading a remote compressed
537 dump. Previously, this information was autodetected, but
538 the autodetection code fails (with ioctl: Inappropriate ioctl
539 for device) when using a non Linux remote box. Thanks to
540 many users and especially to Eros Albertazzi
541 <eros@lamel.bo.cnr.it> for reporting this.
542
543 7. Found a workaroung for the dump deadlock problem (3 childs
544 stuck in pause(), father in read()). The workaround seems
545 to work for me and several beta-testers. If it doesn't work
546 for you, please report back.
547
548 8. Updated the RPM spec file (BuildPrereq, URL etc).
549
550 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
551 ========================================================================
552
553 1. Fixed the permissions of a newly created QFA file by dump.
554
555 2. Cleaned up the source of dump (the external variables
556 definition was a complete mess, making possible to have
557 objects overlap).
558
559 3. Fixed restore to use the full tape volume path when doing
560 a compare (since it changes the working directory to the
561 filesystem being compared in the process).
562
563 4. Added the -q option to dump which makes dump abort
564 whenever it needs operator attention. It should be
565 easier to use dump in scripts with this option.
566
567 5. Detect the use of incompatible options to dump and
568 refuse them (like -a and -B options together).
569
570 6. Added bzip2 compression to dump/restore (use option -j level
571 to select it). Note that you will need a restore version
572 >= 0.4b24 in order to restore a bzip2 compressed dump.
573 The same warning as for the zlib compression applies:
574 the tape format of a bzip2 dump is not compatible with the
575 original BSD tape format.
576
577 7. Fixed a overflow problem in dump corrupting the dump when
578 very large files were encountered. Thanks to Vladimir Nadvornik
579 for the bug report.
580
581 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
582 kernel buffer/page cache before starting the dump, helping
583 a bit those who use dump on mounted filesystems. Thanks to
584 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
585 for this suggestion.
586
587 9. Updated the RPM spec file following the RedHat changes
588 (dynamically linked binaries now in /usr/sbin etc).
589
590 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
591 which enables restore to recognise multi volume compressed dumps
592 done on CD. Included his scripts for dump (which pipe the dump
593 output directly into cdrecord) and restore. There is now
594 possible to to backups to CD on the fly!
595
596 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
597 ===================================================================
598
599 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
600 Marcus Meissner (Caldera International Security Dept.).
601
602 2. Implement the Sun rmt extended protocol. Patch submitted
603 by Ian Gordon <iangordon@users.sourceforge.net>.
604
605 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
606 the linux kernel header. This ensures that dump always has the
607 latest version of this file. Patch submitted by
608 Andreas Dilger <adilger@turbolinux.com>.
609
610 4. Report any filesystem present in either /etc/fstab with a
611 positive passno or /etc/dumpdates in dump -w output.
612 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
613
614 5. Fixed the looping problem in dump introduced in the
615 previous version.
616
617 6. Changed the -B option of dump to limit the size of
618 _compressed_ output per volume if compression is on.
619 Patch contributed by Helmut Jarausch
620 <jarausch@igpm.rwth-aachen.de>. Note however that, since
621 it is impossible to predict the size of the compressed
622 data before doing the compression, the -B limit is a bit
623 conservative.
624
625 7. Fixed a bug in reading the operator typed file/tape path for
626 the next volume in restore.
627
628 8. Implemented a "-F script" option to restore which permits the
629 user to specify a script which will be launched at the
630 beginning of each tape, useful for automatic programming of
631 tape changers for example. See the restore man page for the
632 script parameters and return codes.
633
634 9. Small fix for the QFA routines provided by Uwe Gohlke
635 <uwe@ugsoft.de>, and some recommendations for QFA uses in
636 the man pages.
637
638 10. Fixed the multivolume restoring where making a mistake
639 to the 'Mount next tape' prompt caused several blocks to
640 be lost.
641
642 11. Enhanced the -e option of dump to take as a parameter a
643 comma separated list of inode numbers.
644
645 12. Added the -E option to dump which specify a file containing
646 inode numbers to exclude from the dump.
647
648 13. Fixed the compressed multi-volume dump + restore.
649
650 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
651 ==================================================================
652
653 1. Made dump report the number of blocks dumped per volume.
654 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
655
656 2. Fix a bug in dump where waiting too much at the 'change volumes'
657 question caused the volume to be rewritten. Thanks to
658 Graham Reed <greed@users.sourceforge.net> for reporting the
659 bug and providing a patch.
660
661 3. Added a compression option to dump, contributed by Jerry
662 Peters <gapeters@worldnet.att.net>.
663
664 WARNING: the compression works only on files/pipes and
665 drives supporting variable block size.
666
667 WARNING2: tapes created using the compression feature are
668 incompatible with the standard dump tape format, and a
669 version of restore >= 0.4b22 will be needed for extraction.
670
671 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
672 architectures. Thanks to Paul Slootman <paul@debian.org> for
673 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
674 it upstream.
675
676 5. Many cleanups (CPP defines, const char warnings, check of
677 ext2fs COMPAT flags, time_t cleanups, added libext2 version
678 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
679
680 6. Made --prefix option work in configure. All the install path
681 are now based on the configure parameters.
682
683 7. Added the Quick File Access mode in dump/restore, contributed
684 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
685 a file tape position for each inode, and this file is used by
686 restore (if called with parameter Q and the filename)
687 to directly position the tape at the file restore is currently
688 working on. This saves hours when restoring single files from
689 large backups, saves the tapes and the drive's head. Use
690 --enable-qfa option of configure to compile in the QFA support.
691
692 8. Added the possibility to dump several files and directories
693 in a single invocation of dump. Thanks to Uwe Gohlke
694 <uwe@ugsoft.de> for implementing this option.
695
696 9. Fixed the dumping and restoring of files with holes
697 (files ending with holes didn't get dumped or restored
698 correctly).
699
700 10. Fixed a socket descriptor leak in dump, which leaved opened
701 3 file descriptors per dump process (and there is one dump
702 process per tape).
703
704 11. Fixed dump large file system support, by explicit use of
705 open64/lseek64/etc functions (explicit use needed because
706 e2fsprogs libraries don't behave well when compiled with
707 FILE_OFFSET_BITS=64).
708
709 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
710 ======================================================================
711
712 1. Fixed some bugs in the dump -w|-W logic introduced by
713 the previous version. Thanks to Andreas Dilger
714 <adilger@turbolinux.com> for his help on this one.
715
716 2. Fixed again a compilation problem when using old e2fs
717 headers (filesystem label related). Thanks to many users
718 who reported this stupid error.
719
720 3. Fixed a build problem on old lib5 based systems dealing with
721 _PATH_MNTTAB being undefined. Thanks to John Adams
722 <johna@onevista.com> for reporting the bug.
723
724 4. Improved the error detection in restore when creating
725 the temporary files in TMPDIR. Now restore will corectly
726 report a 'no space left on device' error instead of
727 strange errors which could imply an archive corruption.
728 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
729 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
730
731 5. Added the throughput information in dump's progression
732 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
733 for the patch.
734
735 6. Use libext2fs's inode scanning routines, which are particularly
736 robust when dealing with errors (especially when having some
737 bad blocks on the filesystem). Many thanks to Colin
738 <colin@horizon.com> for reporting the bug, investigating
739 the issues, finding a workaround, writing the patch and
740 fully testing it... (of course, if this patch will break
741 anything, he is to blame for :-)).
742
743 7. Made dump and restore LFS aware. Dump can dump a filesystem
744 containing large files, generate a large file on output and
745 restore can restore them. This feature is not enabled by
746 default, use --enable-largefile option of configure to enable
747 it (you need to have a LFS aware glibc though). Thanks to
748 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
749 and to Theodore T'so <tytso@valinux.com> for his always
750 useful thoughts.
751
752 8. Made dump ask upon a tape write error if it should rewrite
753 the current volume (assume this is a bad tape) or if it should
754 assume an end-of-tape condition (useful for tape drives which
755 behaves badly at the end of the tape). Thanks to Andreas
756 Dilger <adilger@turbolinux.com> for the suggestion.
757
758 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
759 =======================================================================
760
761 1. Fixed a small compilation problem due to a change
762 in the definintion of the struct sigaction in
763 glibc 2.0 / libc5. Thanks to Gunther Schlegel
764 <schlegel@riege.de> for reporting the bug and to
765 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
766 a fix.
767
768 2. Modified the label and uuid analysis in order to be
769 self-contained (independant of kernel/libc headers). This
770 should fix the compile with older kernel/libc headers and
771 will preserve the functionality. Thanks to Bernhard Erdmann
772 <bernhard.erdmann@gmx.de> for reporting the bug.
773
774 3. The 'exclude inode' option, if applied to a directory
775 inode, excludes now correctly all the leaves of this
776 directory. Thanks to John R. Dennison
777 <gerdesas@users.sourceforge.net> for reporting the bug.
778
779 4. Fixed the '-e' option to disable the possibility
780 to exclude the root inode (which causes the dumps to
781 be unreadable by restore). Prevented array overflow
782 when multiple -e options are used.
783
784 5. Fixed dump to correctly interpret a filesystem argument
785 which is a mountpoint and it is not an absolute path
786 (as specified in the fstab). Thanks to Bernhard R. Erdmann
787 <be@berdmann.de> for reporting the bug.
788
789 6. Made dump able to backup files larger than 2 GB. Note that
790 dump still doesn't cope with files larger than 4 GB.
791
792 7. Restore the real uid and gid before invoking an external
793 RSH program (big hole when dump or restore is suid root!).
794
795 8. Get the values for the default tape device and the location
796 of fstab file from the system headers. Thanks to
797 Andreas Dilger <adilger@turbolinux.com> for the patch.
798
799 9. Made dump -w|-W report all recognized filesystems
800 present in either /etc/fstab or /etc/dumpdates, and present
801 the list in the same order as in fstab file. Thanks
802 to Andreas Dilger <adilger@turbolinux.com> for the patch.
803
804 10. Made dump's -a (automatic end of tape detection) the
805 default. Specifying one of -B, -c, -d or -s options will
806 override the EOM detection. Thanks to Andreas Dilger
807 <adilger@turbolinux.com> for the patch.
808
809 11. Save the ext2 filesystem label into the dump volume label.
810 Specifying a volume label on the command line (-L option)
811 will override this feature. Thanks to Andreas Dilger
812 <adilger@turbolinux.com> for the patch.
813
814 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
815 =====================================================================
816
817 1. Fixed the signal handling in dump (which I broke in 0.4b17)
818 which was causing several strange dump failures (dump
819 hanged or segmentation faults etc).
820
821 2. Specified the default blocksize in the dump man page.
822
823 3. Changed two info messages of restore to be written on stdout
824 instead of stderr in order to leave stderr only for errors
825 or warnings. Thanks to Stephen Atwell
826 <satwell@urbana.css.mot.com> for the suggestion.
827
828 4. Corrected an off by one calculation which prevented
829 dumping a directory having a 1 character name length.
830 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
831 for reporting the bug.
832
833 5. Reinforce dump in order to allow only level 0 and no
834 -u option when dumping a subdirectory, and document
835 this in the man page. Thanks to Bernhard Erdmann
836 <bernhard.erdmann@gmx.de> for reporting the bug.
837
838 6. Fixed a small harmless bug in restore which caused
839 in some conditions hard links to be restored several
840 times (therefore generation some warning messages).
841 Thanks to Kenneth Porter <shiva@well.com> for
842 reporting the bug.
843
844 7. Updated the RPM spec file to the latest RedHat version,
845 providing FHS packaging and other cosmetic changes.
846 You will need RPM version >= 3.0.5 in order to build the RPM.
847
848 8. Updated the configure script to check for libtermcap
849 before checking for libreadline, because we need this
850 library in order to compile the readline support.
851
852 9. Made dump understand the LABEL= and UUID= notation
853 both in /etc/fstab and on the command line. Note that
854 you will need the /proc filesystem in order to use
855 these notations. Thanks to Erik Troan <ewt@redhat.com>
856 for providing the patch.
857
858 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
859 ===================================================================
860
861 1. Fixed a potential buffer overflow in restore. Thanks
862 to Stan Bubrouski <satan@fastdial.net> for reporting
863 the bug.
864
865 2. Fixed a readline-related bug which prevented
866 'cat DUMPFILE | restore -i -f -' from working. Thanks
867 to Charles Karney <karney@users.sourceforge.net>
868 for the bug report.
869
870 3. Changed a few "panic" into "exit", causing restore to
871 be more stable against some attacks (like the last one
872 reported on Bugtraq, although the last version of restore
873 was not vulnerable - just dumped core). Thanks to
874 Andreas Hasenack <andreas@conectiva.com.br> for reporting
875 the bugs to me.
876
877 4. Removed the suid-root bit on dump and restore in the
878 default build (and generated RPMs). It should be safer
879 now. Users who need the suid-root capabilities in order
880 to make network backups should read first the man page
881 of dump and enable the suid bit manually.
882
883 5. Added -ltermcap to the compile parameters for restore
884 when using readline support, in order to make the compile
885 process work on some systems (SuSE ?). Thanks to
886 Patrik Schindler <poc@pocnet.net> for reporting the bug.
887
888 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
889 ====================================================================
890
891 1. The -F script is called now *only* at the end of a tape,
892 not at the end of the dump. Thanks to Christian Haul
893 <haul@informatik.tu-darmstadt.de> for the bug report.
894
895 Normally, the device name and the current volume number
896 are passed on the command line of the script. However,
897 if you want the old style script (with no arguments
898 passed on the command line), you can enable it in
899 configure with the --enable-oldstylefscript.
900
901 2. Use posix signal handling to preserve dump functionality
902 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
903 the patch.
904
905 3. Made the exit code of restore in case of a 'C'ompare
906 command reflect the result of the compare. An exit status
907 of 0 means the dump archive is correct, 1 means tape errors,
908 2 means that some files were modified. Thanks to Kenneth Porter
909 <shiva@well.com> for the suggestion.
910
911 4. Made (finally) quotes work in interactive restore.
912
913 5. Small fixes in order to allow dump to compile with a
914 really old e2fsprogs version. Thanks to Ian Zimmerman
915 <itz@speakeasy.org> for the bug report.
916
917 6. Add GNU readline capabilities to interactive restore.
918 Use configure's --enable-readline flag to enable this feature.
919 Thanks to Patrik Schindler <poc@pocnet.net> for the
920 suggestion.
921
922 7. Do the compare on the fly in restore 'C' mode (this will
923 allow not to exhaust the available /tmp space when
924 ccmparing large files). Thanks to Kenneth Porter
925 <shiva@well.com> for the suggestion.
926
927 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
928 ====================================================================
929
930 1. Fixed some several duplicate 'DUMP: DUMP:' in the
931 output of dump.
932
933 2. Corrected the estimation of blocks to dump. Note that
934 this is still wrong for large directory inodes, due
935 to the size of a BSD directory entry on the tape
936 (estimation is based on the size of the ext2 directory,
937 which is smaller because it doesn't contain the null
938 character at the end).
939
940 3. Made dump report the total number of MB written to
941 tape at the end of run. Thanks to W. Reilly Cooley
942 <wcooley@nakedape.cc> for the patch.
943
944 4. Added the -X option to restore giving the possibility
945 to read the names of the files to be extracted/listed
946 from a text file (in addition of the command line).
947 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
948 patch.
949
950 5. Added the device name and the current volume number
951 as arguments to the end of tape script (dump -F option).
952
953 6. Made the multi-volume dump work again (after having
954 broken it in 0.4b15).
955
956 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
957 ===================================================================
958
959 1. Added a prompt command in interactive restore mode. Thanks
960 to Andreas Dilger <adilger@home.com> for the patch.
961
962 2. Fixed a buffer overflow problem in dump (caused by
963 not checking the size of the filesystem parameter).
964 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
965 reporting this on Bugtraq (and to several dump users
966 who forwarded me his mail).
967
968 3. Added the '-F script' option to dump in order to
969 launch a script at the end of each tape (to be used
970 with a tape changer, or to notify the sysadmin by
971 pager etc.).
972
973 4. Fixed a bug in restore compare code caused by the changes
974 I made in 0.4b14.
975
976 5. Fixed the treatment of options using the old BSD syntax
977 in both dump and restore.
978
979 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
980 =======================================================================
981
982 1. Fixed a bug in dump which may have caused invalid deleted
983 directories to be dumped out if they were deleted after the
984 mapping pass. This could occure on active filesystem and lead
985 to heap corruption (causing dump malfunction in many possible ways).
986 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
987 bug and submitting the patch.
988
989 2. Fixed the handling of the filesystem parameter in dump. A
990 '/mnt/disk' parameter caused the disk contents to be dumped,
991 but a '/mnt/disk/' parameter caused the mountpoint directory
992 to be dumped (generally an empty directory).
993
994 3. Improved the output of dump in order to tell which directory
995 it is currently dumping (when dumping a subtree).
996
997 4. Added the '-e' exclude inode option to dump. Thanks to
998 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
999
1000 5. Added a REPORTING-BUGS file in order to provide a guide
1001 on how to correctly report a bug in dump/restore.
1002
1003 6. Fixed a restore problem when restoring a hard link to an inode
1004 having the immutable or append-only attribute set. Thanks to
1005 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
1006
1007 7. Fixed a compatibility problem between dumps made on little
1008 endian machines (the format was correct) and big endian
1009 machines (the format was incorrect). This fix break the
1010 compatibility with the older dumps made on big endian
1011 machines (sparc, m86k, ppc etc). For the first time in
1012 linux dump's history (I believe), the dumps made by *BSD,
1013 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
1014 so interchangeable. Thanks to Rob Cermak
1015 <cermak@ahab.rutgers.edu> for submitting the bug and
1016 helping me test the fix.
1017
1018 8. Fixed the way dump reports the remaining percent/time, if
1019 the number of blocks actually dumped exceeds the estimated
1020 number of blocks. Thanks to Jean-Paul van der Jagt
1021 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
1022
1023 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
1024 ======================================================================
1025
1026 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
1027 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
1028
1029 2. Removed the requirement to build the RPM as root from the
1030 spec file. Thanks to Christian Weisgerber
1031 <naddy@mips.rhein-neckar.de> for submitting this.
1032
1033 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1034 causing dump to block when dumping really huge filesystems.
1035 Many thanks to Patrik Schindler <poc@pocnet.net> for
1036 helping me find this bug.
1037
1038 4. Fixed the treatment for an interrupt signal when dump access
1039 the remote tape through RSH. Thanks to Christian Weisgerber
1040 <naddy@mips.rhein-neckar.de> for providing the patch.
1041
1042 5. Fixed a bug which was causing dump/restore to display
1043 garbage characters instead of the remote host name.
1044
1045 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1046 =====================================================================
1047
1048 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1049 <kukuk@suse.de> for submitting the patch.
1050
1051 2. Fix for the exit code when using the size estimate option of
1052 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1053 submitting the patch.
1054
1055 3. Handle EINTR in atomical reads/writes in dump, which was causing
1056 dump to fail on some systems. Thanks to Eric Jergensen
1057 <eric@dvns.com> for reporting the bug and submitting the patch.
1058
1059 4. Handle more than 16 characters for the device names in dumpdates.
1060 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1061 tracking down the problem and proposing the solution.
1062
1063 5. Fixed a bug in dump which prevented the creation of the
1064 dumpdates file when doing a 0-level dump without already
1065 having a dumpdates file. Thanks to Patrik Schindler
1066 <poc@pocnet.net> for reporting the bug.
1067
1068 6. Changed the way dump 'S' flag reports the size estimate
1069 from number of blocks into bytes (making it compatible
1070 with the Solaris version, and simplifying things for
1071 amanda users). Thanks to Jason L Tibbitts III
1072 <tibbs@math.uh.edu> for reporting the bug.
1073
1074 7. Fixed a compatibility problem in linux/alpha dump tape format.
1075 Now the linux/alpha dump are (again) compatible with the
1076 other dump formats. But this breaks compatibility with
1077 older dumps made on alpha. Thanks to Mike Tibor
1078 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1079
1080 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1081 ======================================================================
1082
1083 1. Added a '--enable-kerberos' to configure.
1084
1085 2. Added a 'S' option to dump which determines the amount of space
1086 that is needed to perform the dump without actually doing it, similar
1087 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1088 <cermak@ahab.rutgers.edu>.
1089
1090 3. Added a 'M' multi-volume option to dump and restore which enables
1091 dumping to multiple files (useful when dumping to an ext2
1092 partition to make several dump files in order to bypass the 2GB
1093 file size limitation). The 'f' argument is treated as a prefix and
1094 the output files will be named <prefix>001, <prefix>002 etc. With
1095 the 'M' flag, restore automatically selects the right file without
1096 asking to enter a new tape each time.
1097
1098 4. Fixed a memory leak which was causing dump to grow very big
1099 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1100 Fearon <jasonf@netrider.org.au> for reporting the bug.
1101
1102 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1103 ======================================================================
1104
1105 1. Make configure test if the system glob routines support
1106 extended syntax (ALTDIRFUNC). If not, use the internal glob
1107 routines instead of system ones. Thanks to Bernhard Sadlowski
1108 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1109 and helping me resolve this and other minor libc5 compiling
1110 glitches.
1111
1112 2. Fix a problem when dumping a ext2fs with the 'filetype'
1113 feature enabled. Thanks to Patrick J. LoPresti
1114 <patl@cag.lcs.mit.edu> for reporting the bug and to
1115 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1116
1117 3. Made the nodump flag work on directories. A directory which
1118 has the nodump flag gets never dumped, regardless of its
1119 contents.
1120
1121 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1122 which allows dump on an active ext3 filesystem. However, this
1123 is a "quick and dirty" patch which enables backup of an ext3
1124 filesystem through the ext2 compatibility (by ignoring the
1125 NEEDS_RECOVERY bit). The journal file is not recognized and
1126 it is dumped (it should not).
1127
1128 5. Test the superblock compatibility flags when dumping, in order
1129 to be sure that we know how to deal with specific features.
1130
1131 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1132 ====================================================================
1133
1134 1. Use lchown instead of chown, fixing a possible security problem
1135 when restoring symlinks (a malicious user could use this
1136 to deliberately corrupt the ownership of important system files).
1137 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1138 this and providing the patch.
1139
1140 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1141 ====================================================================
1142
1143 1. Put dump sources under CVS, added Id tags in all files so
1144 one can use 'ident' on binary files.
1145
1146 2. Added the dump/restore version in the usage text so one can
1147 easily verify the version he is using.
1148
1149 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1150 a va_start/va_end problem on linux-ppc (always call va_start
1151 va_end in pairs each time we use a vararg function).
1152
1153 4. Added again the DT_* constants because old libc does not
1154 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1155 for submitting the bug report.
1156
1157 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1158 this should enable dumping big (huge) filesystems.
1159
1160 6. Added the RSH environment variable in order to be able to
1161 use a rsh replacement like ssh when doing remote backups (and
1162 bypass the security limitations of rcmd). Now you can do remote
1163 backups without being root (or making dump setuid root).
1164
1165 7. Modified again the way dumpdates works. For incremental dumps,
1166 we need to read dumpdates even if we are not using 'u' option.
1167 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1168 this should work.
1169
1170 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1171 ===================================================================
1172
1173 1. Removed the 'k' flag from the restore 'about' text if kerberos
1174 was not compiled in.
1175
1176 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1177 to them (fsetflags takes a char*, setflags an open fd!).
1178
1179 3. (f)setflags is called only if the flags aren't empty. If the
1180 file is a special file, a warning is printed, because changing
1181 flags implies opening the device. Normally, a special file
1182 should not have any flag... (Debian bug #29775, patch provided
1183 by Abhijit Dasgupta <abhijit@ans.net>).
1184
1185 4. Made possible to dump a file system not mentioned in /etc/fstab.
1186 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1187
1188 5. Changed the default behaviour to not create dumpdates
1189 unless 'u' option is specified. Removed the old "debian-patch"
1190 which provided the same thing. (Debian bug #38136, #33818).
1191
1192 6. Removed all those dump*announce, since they were getting old...
1193
1194 7. Added warning messages if dumpdates does not exist and
1195 when an inferior level dump does not exist (except for a level 0
1196 dump).
1197
1198 8. Debugged the glob calls in interactive mode: restore used a
1199 dirent struct which was different from the /usr/include/dirent.h
1200 one (this used to work, is it a glibc2 change?), so none of the
1201 compat glob (which used /usr/include/dirent.h) or the system glob
1202 worked. Restore use now the system dirent (and the system
1203 DT_* constants), which are compatible with BSD ones.
1204
1205 9. Added a configure flag (--with-dumpdatespath) to specify
1206 the location of dumpdates file. By default, it is
1207 /etc/dumpdates.
1208
1209 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1210 included the current date/version in man pages.
1211
1212 11. Corrected the estimation of remaining time when
1213 the operator doesn't change the tapes quickly enough. This
1214 was an old bug, I thought I corrected it, and discovered
1215 that in fact it was corrected in two different places, so
1216 the results canceled each other...
1217
1218 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1219 ===================================================================
1220
1221 1. Integrated multiple patches from RedHat, Debian and SuSE:
1222
1223 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1224 isn't specified.
1225 - several fixes in the man pages.
1226 - update the default tape device to /dev/st0.
1227 - many updates for Linux Alpha (byte ordering, size_t etc).
1228 - buffer overruns.
1229 - use environment variable for TMPDIR (instead of /tmp).
1230 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1231 - workaround egcs bug (RedHat bugs #4281 and #2989).
1232 - wire $(OPT) throughout Makefile's.
1233
1234 2. Upgrade the dump revision to 1, making possible to dump filesystems
1235 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1236
1237 3. Fix some compile warnings, prototype all functions.
1238
1239 4. Use glibc err/glob instead of internal compatibility
1240 routines (only if available).
1241
1242 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1243 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1244
1245 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1246 ======================================================================
1247
1248 1. Integrated the changes from FreeBSD-3.1-RELEASE
1249 (mostly bug fixes, buffer overruns, dump has now an "automatic
1250 tape length calculation" flag, dump/restore can use kerberos now
1251 (this is NOT tested), use environment variables for TAPE and
1252 RMT etc.).
1253
1254 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1255
1256 3. Corrected a bug in restore when using 'C' option with multi-volumes
1257 tapes (files splited accros two tapes give "size changed" errors
1258 when comparing).
1259
1260 4. Corrected the long standing bug when dumping multiple tapes.
1261 This works for me, needs further testing.
1262
1263 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1264 ====================================================================
1265
1266 1. Dump now runs correctly on kernels 2.1.x
1267 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1268
1269 Changes between versions 0.4b2 and 0.4b3
1270 ========================================
1271
1272 1. Use realpath() if available
1273
1274 2. Report statistics
1275
1276 Changes between versions 0.4b1 and 0.4b2
1277 ========================================
1278
1279 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1280 the patch)
1281
1282 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1283
1284 3. Fixed configure.in to correctly handle --enable-rmt
1285
1286 Changes between versions 0.3 and 0.4b1
1287 ======================================
1288
1289 1. Integrated the changes from 4.4BSD-Lite2
1290
1291 2. Integrated the patches from Debian and Red Hat
1292
1293 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1294
1295 4. Changed dump to use the Ext2fs library to get block addresses. This
1296 should solve the endianness problem on SparcLinux.
1297
1298 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1299 distribution's one) to use autoconf
1300
1301 6. Fixed a few minor bugs
1302
1303 Changes between versions 0.2e and 0.2f
1304 ======================================
1305
1306 1. Added the creation of named pipes (fifos) in restore.
1307
1308 2. Added the -N flag in the restore manual page.
1309
1310 3. Added the file kernel.patch which contains the llseek() optimization
1311 patch for 1.2.x kernels.
1312
1313 4. Fixed a bug in the restoration of symbolic links: owner and group were
1314 not restored.
1315
1316 5. Integrated some changes from FreeBSD 2.2.
1317
1318 6. Added a call to ftruncate() after restoring each file to restore
1319 correctly files ending by a hole.
1320
1321 Changes between versions 0.2d and 0.2e
1322 ======================================
1323
1324 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1325 with owner = root (0) and group = root/wheel/whatever (0).
1326
1327 Changes between versions 0.2c and 0.2d
1328 ======================================
1329
1330 1. Dump is now able to backup 2GB+ filesystems.
1331
1332 2. Dump and restore can now be linked as static binaries.
1333
1334 Changes between versions 0.2b and 0.2c
1335 ======================================
1336
1337 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1338
1339 Changes between versions 0.2a and 0.2b
1340 ======================================
1341
1342 1. Really fixed the bug that I should have corrected in 0.2a.
1343
1344 2. Enabled optimization again.
1345
1346 Changes between versions 0.2 and 0.2a
1347 =====================================
1348
1349 1. Disabled the optimization during compilation.
1350
1351 Changes between versions 0.1 and 0.2
1352 ====================================
1353
1354 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1355 the fs_type field (actually, I modified the file fstab.c to make it
1356 use the mntent functions).
1357
1358 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1359 made by dump should be readable by the BSD restore and backups made
1360 by the BSD dump should be readable by restore. Unfortunately, this
1361 means that the dump format has changed between version 0.1 and version
1362 0.2 :-(
1363
1364 3. Dump is now able to backup a subtree, it is no longer limited to whole
1365 filesystems like the BSD version.
1366
1367 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1368 than 2 GB.
1369
1370 Changes between versions 0.0 and 0.1
1371 ====================================
1372
1373 1. Now create links rdump and rrestore during the `make install' step.
1374
1375 2. Linux port specific bugs added to the manual pages
1376
1377 3. Incorrect estimation of the number of tapes blocks fixed when doing
1378 incremental backups.
1379
1380 4. Better ls-like format in restore in interactive mode.