Prepare for dump 0.4b36 release.
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.247 2004/04/21 09:18:49 stelian Exp $
2
3 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
4 ====================================================================
5
6 1. Fixed dump compilation with old gcc versions. Thanks to
7 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
8
9 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
10 when compiling against a recent glibc version.
11
12 3. Fixed a bug in restore preventing the read of a dump tape
13 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
14 <phiggins@transzap.com> for reporting the bug and providing
15 the test case.
16
17 4. Changed dump to enable the creation of volumes of different
18 sizes in a single run (make -B accept a list of values).
19 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
20
21 5. Use the glibc provided minor() and major() macros instead
22 of our own bitmask implementation. This should be safe for
23 when the major/minor namespace will migrate to 32 bits.
24 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
25 the bug.
26
27 6. Made explicit in the dump man page that dump will not create
28 a remote file, it will only write to an already existing one.
29
30 7. Another try at making size estimates better again.
31
32 8. Put back the inconditional running of the end-of-tape
33 script which was changed in 0.434 to be run only when -M
34 or multiple -f were NOT specified. Some users rely on this
35 feature even when it is combined with -M/-f.
36
37 9. Fixed restore when restoring huge backups (where rstdir...
38 temporary files are over 2GB). Thanks to
39 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
40 debugging the issue and making the patch.
41
42 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
43 David <vrtin@users.sourceforge.net> for submitting the bug
44 and providing a test case.
45
46 11. Made dump work with an arbitrary integer level (no more 10
47 levels only limitation). Thanks to Matthew
48 <msvincen@midway.uchicago.edu> for the patch.
49
50 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
51 =======================================================================
52
53 1. Added a note in the dump man page saying that the default
54 blocksize can be 32 if -d is used with a high density argument.
55 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
56 for the patch.
57
58 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
59 LDFLAGS environment variables. Thanks to Arcady Genkin
60 <antipode@users.sourceforge.net> for reporting the bug.
61
62 3. Made -e/-E options of dump accept an unlimited number of inodes
63 to be excluded, rather than a hardcoded maximum. Thanks to
64 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
65
66 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
67 and -D_USE_BSD_SIGNAL defines in configure in order to solve
68 64bit build problems because quad_t is redifined with a
69 different signature. Thanks to Mike Harris <mharris@redhat.com>
70 for reporting this bug.
71
72 5. Made restore build on Solaris, making possible to
73 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
74 <uwe@ugsoft.de> for the patch.
75
76 6. Made an extension in the dump tape format capable of saving
77 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
78 wrote the extension and contributed the restore code back
79 into this codebase. The same extension mechanism will be
80 used in the future to save ACLs...
81
82 7. Made rmt work correctly with regard to QFA and local/remote
83 files and tapes. The remote access will however work only
84 when the dump provided rmt version is used. If you want to
85 use another rmt server, please do not use the QFA feature.
86 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
87
88 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
89 ====================================================================
90
91 1. Fixed the INSTALL file to reflect the actual install paths.
92 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
93 reporting the bug.
94
95 2. Fixed the configure script to only check for headers presence
96 instead of trying to compile them. This should fix issues
97 with old build environments. Thanks to Kari Lempiainen
98 <kari@funky.pp.fi> for reporting the bug.
99
100 3. Fixed restore to correctly ignore sockets when comparing
101 a dump (as socket cannot be properly restored anyway). Thanks
102 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
103
104 4. Fixed restore to correctly access the archive file (-A argument)
105 even when using a remote tape. Thanks to Fabrice Bellet
106 <fabrice@bellet.info> for reporting the bug.
107
108 5. Fixed (again) handling of long (largefile) seeks in rmt.
109 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
110 the bug.
111
112 6. Fixed restore corner case when dealing with large block sizes
113 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
114 <fabrice@bellet.info> for reporting the bug.
115
116 7. Fixed a bug preventing dump to access a filesystem having
117 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
118 for reporting the bug.
119
120 8. Made dump store dump dates using explicit timezones, fixing a
121 problem with incremental dumps if the timezone is modified
122 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
123 the bug report and the patch.
124
125 9. Fixed a bug encountered when dumping individual files (not full
126 filesystems or directories) and dangling symbolic links happen
127 to be in the list of files. For as far as dump is concerned,
128 dangling symbolic links are allowed, and are dumped as is.
129 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
130 bug and providing the fix.
131
132 10. Fixed open and creation modes and permissions for QFA and
133 table-of-contents files in dump and restore. Thanks to
134 Philippe Troin <phil@fifi.org> for the patch.
135
136 11. Fixed the archive file descriptor handling enabling it to be 0.
137 This can happen in some cases when shell redirections are used.
138 Thanks to Philippe Troin <phil@fifi.org> for the patch.
139
140 12. Delayed the opening of archive file until after suid had been
141 dropped (fixing a possible security issue if dump is suid).
142 Thanks to Philippe Troin <phil@fifi.org> for the patch.
143
144 13. Fixed the 'S' command handling in the rmt client part.
145 Thanks to Philippe Troin <phil@fifi.org> for the patch.
146
147 14. Modified the end-of-tape script handling to print out statistics
148 (and stop the timer) before launching the eot script. Also, the eot
149 script does not get run anymore when using -M (which makes sense) or
150 when multiple tapes are listed on the command line
151 (-f tape0,tape1,tapen) (which also makes sense).
152 Thanks to Philippe Troin <phil@fifi.org> for the patch.
153
154 15. Relicensed dump/restore under the 'revised' BSD license, as per
155 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
156
157 16. Added LZO compression to dump. This new compression method has
158 the advantage of being super fast, thus not killing tape streaming
159 on slow machines. Thanks to Helmut Jarausch
160 <jarausch@igpm.rwth-aachen.de> for the patch and to
161 Markus Oberhumer <markus@oberhumer.com> for giving special permission
162 to include his miniLZO project (GPL licensed) in dump/restore.
163
164 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
165 <ant@notatla.demon.co.uk> for reporting the bugs.
166
167 18. Added a special rmt version which can do encryption when writing
168 to tape. Read examples/encrypted_rmt/README for details on
169 how to enable and configure it. Thanks to Ken Lalonde
170 <ken@globalremit.com> for the patch.
171
172 19. Made dump work with 2.5 kernel end of tape early warning semantics.
173 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
174
175 20. Fixed a bug which caused dump -w|-W not to work anymore, because
176 the fs_freq and fs_passno fields in /etc/mtab are always set
177 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
178 reporting the bug.
179
180 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
181 =======================================================================
182
183 1. Added a note in the restore man page clarifying the question
184 'set the permissions on the current directory ?' asked by
185 restore at the end of treatment in -i and -x modes.
186
187 2. Fixed the endianess issues when reading compressed tapes.
188 Thanks to Dark Force <daq4th@users.sourceforge.net> for
189 reporting this bug and providing test cases.
190
191 3. Fixed the "ACL won't be dumped" warning message (which showed
192 an extra, unrelated error message). Thanks to Dragan Krnic
193 <dkrnic@lycos.com> for reporting this bug.
194
195 4. Made dump look first into /etc/mtab, then into /etc/fstab
196 when searching for filesystem paths. Also fixed some problems
197 caused by binding mounts or multiple block device mounts.
198 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
199 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
200 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
201 and #160305, Sourceforge bugs #618699 and #679832).
202
203 5. Made dump's -I option accept the value '0' meaning all the
204 read errors will be ignored. This can be useful when running
205 dump from unattended sessions (like cron jobs). Thanks to
206 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
207
208 6. Fixed the output of dump to indicate 'blocks' instead of
209 'tape blocks' in the various messages (blocks are always
210 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
211 made it clearly print the current blocksize at the start of
212 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
213 the suggestions.
214
215 7. Made rmt understand long (largefiles) seeks.
216
217 8. Fixed build with very old versions of libext2fs, where
218 EXT2_FT_* constants were undefined.
219
220 9. Made dump accept the dumpdates path on the command line
221 (-D file option) instead of using only the hardcoded one.
222 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
223 suggestion.
224
225 10. Enabled rmt, LFS, readline, QFA options by default in
226 ./configure. Updated the configure process (new versions
227 of config.guess, config.sub etc).
228
229 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
230 =======================================================================
231
232 1. Changed dump to use fcntl(F_SETLK) style locking instead
233 of flock() when locking the dumpdates file. With the old
234 locking scheme, a local user having read rights on the
235 dumpdates file could be able to do a Denial of Service attack
236 on dump. In order to lock the dumpdates file with the new
237 scheme, the user would need to have write access on the file.
238 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
239 reporting the bug (originally a bugtraq post).
240
241 2. Fixed interactive 'ls' which caused spurious errors warnings
242 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
243 <jorgen_ostling@users.sourceforge.net> for reporting this
244 bug.
245
246 3. Fixed dump's estimate when dealing with sparse inodes.
247
248 4. Modified dump to allow setting a blocksize bigger than 32kB
249 (raised the limit to 1024kB), because newer hardware needs
250 this for proper operation. Thanks to Dirk Traenapp
251 <dtraenapp@users.sourceforge.net> for reporting this.
252
253 5. Fixed a bug causing Dump to stop and report an error if an
254 inode number in the exclude file was followed by some amount
255 of whitespace. Thanks to Jeffrey Sofferin
256 <sofferin@users.sourceforge.net> for reporting this bug.
257
258 6. Fixed a bug which caused restore, in some particular cases,
259 to ask some 'scary' questions and leave a bunch of RSTTMP
260 directories behind when restoring incremental tapes. Thanks
261 to Philippe Troin <phil@fifi.org> for reporting this bug and
262 providing the test cases.
263
264 7. Changed the wording when inodes are excluded from dump:
265 replaced 'Added inode 7 to exclude list' with
266 'Excluding inode 7 (resize inode) from dump', as suggested
267 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
268
269 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
270 ===================================================================
271
272 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
273 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
274 <eros@lamel.bo.cnr.it> for reporting the bug.
275
276 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
277 ===================================================================
278
279 1. Made dump print out the ext2 logical block number in case of a read
280 error, which can be given as an argument to debugfs' ncheck command,
281 in order to find out the affected inode. Added note about this
282 usage in dump's man page.
283
284 2. Fixed a problem in restore when reading tapes written on big
285 endian machines with very old versions of dump. The patch was
286 contributed by George Helffrich <george@geology.bristol.ac.uk>.
287
288 3. Fixed the tape length calculation when using large tapes
289 and compression. Thanks to Georg Lippold
290 <g_lippold@sourceforge.net> for reporting the bug.
291
292 4. Added a new set of examples in dump_on_cd_2 directory, based
293 on dump_on_cd examples but somewhat enhanced, supporting DVD
294 media, and localized in english and german. Thanks to
295 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
296
297 5. Made dump save 32 bit UID/GID. Internally, this was achieved
298 by switching from the old BSD inode format to the new BSD
299 inode format, which means that the tape format was changed.
300 However, since all restore versions out there should
301 transparently support both inode formats, the change should
302 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
303 reporting the bug.
304
305 6. Fixed a lot of warnings in the code shown when compiling
306 with 'gcc -W'. Thanks to Matthias Andree
307 <matthias.andree@stud.uni-dortmund.de> for reporting this.
308
309 7. Fixed a small markup bug in the dump man page. Thanks to
310 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
311 patch.
312
313 8. Rewrote entirely the man pages using the tmac.an macro
314 package (Linux man page format) instead of the original BSD
315 format. They should be now cleaner and easier to modify.
316
317 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
318 ==================================================================
319
320 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
321 non Linux clients were misinterpreted. The description of the problem
322 (incompatible numbering in Linux mtio opcodes) is documented at
323 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
324 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
325 providing an excellent, cross-platform replacement for rmt in his
326 star package.
327
328 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
329 which caused restore to fail when the inode maps were not entirely
330 contained on the first volume (when using really small volumes or
331 when dumping a huge number of inodes).
332
333 3. Fixed a problem in dump, where files in subdirectories of directories
334 that have the nodump flag set (or being excluded with -e/-E) were
335 sometimes incorrectly dumped (instead of being excluded). The original
336 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
337 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
338 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
339 help testing the patch.
340
341 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
342 which makes one able to pipe the output of dump, by the net, to
343 a remote CD-burner server.
344
345 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
346 and use GNU's symbolic syntax over rmt instead of numerical values
347 to assure multiple platform compatibility.
348
349 6. Documented the -d option in restore.
350
351 7. Added a -v (verbose) mode to dump. For now it just prints the number
352 of the inode being dumped, but this could evolve in future versions
353 to include interesting debugging output.
354
355 8. Added a -o flag to restore, which automatically restores the current
356 directory permissions in -i or -x mode, without asking the operator
357 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
358 and Peter Samuel <peters@e-smith.com>.
359
360 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
361 ====================================================================
362
363 1. Fixed a bug in the QFA feature which could have caused
364 a bad tape positionning on restore (causing extra delays in
365 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
366
367 2. Added a small note in the dump man page specifying that
368 there should be no white space between the option letter and
369 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
370
371 3. Made restore work with older versions of the readline library,
372 by checking in configure for several extended symbols. Restore
373 can now be compiled with a readline as old as the 2.0 release
374 (though it may be a good idea to upgrade it to a more recent
375 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
376 reporting the build failures.
377
378 4. Fixed a performance problem with the QFA file creation in
379 dump, which made unnecessary seeks on the tape slowing down
380 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
381 reporting this issue.
382
383 5. Removed the inclusion of some kernel headers in the dump
384 source, which prevented the compile in some kernel/glibc
385 headers/architecture combination. Thanks to Bdale Garbee
386 <bdale@gag.com> for reporting the bug.
387
388 6. Added the appropriate error message when dump fails to
389 open the output file for writing. Thanks to Amith Varghese
390 <amithv@yahoo.com> for reporting this bug.
391
392 7. Made restore able to understand large Solaris ufsdump tapes
393 (containing inodes bigger than 4194304). Sun have introduced
394 an "extension" to the dump tape format when dealing with
395 those inodes, which was uncorrectly handled by Linux restore.
396 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
397 providing a test case.
398
399 8. Added the -m parameter to dump which optimises the output for
400 inodes having been changed but not modified since the last dump
401 ('changed' and 'modified' have the meaning defined in stat(2)).
402 For those inodes, dump will save only the metadata, instead of
403 saving the entire inode contents. Inodes which are either
404 directories or have been modified since the last dump are saved
405 in a regular way. Uses of this flag must be consistent, meaning
406 that either every dump in an incremental dump set have the flag,
407 or no one has it.
408
409 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
410 =======================================================================
411
412 1. Fixed behaviour of dump when exceeding resource limits
413 (SIGXFSZ treatment).
414
415 2. Added the -L flag to restore to allow the user to specify a
416 maximal allowed number of miscompares when using restore
417 with the -C option to check the backup.
418
419 3. Detailed the manual entry for the -N option of restore.
420
421 4. Added the -a flag to restore to make able doing unattended
422 restores in -i or -x mode (automatically walks through the
423 multiple dump volumes).
424
425 5. Extended the QFA mode to work with local files and/or
426 remote tapes and files. This way, restore can know in advance
427 the tape number and the offset for the inodes to extract and
428 can minimize the extraction time by seeking directly to the
429 good tape/offset.
430
431 6. Added the -A <archive> option to both dump and restore,
432 which makes dump to archive a dump table-of-contents in
433 the specified file to be used by restore to determine
434 whether a file is in the dump file that is being restored.
435 (the archive file syntax is also compatible with the
436 Solaris ufsdump generated one).
437
438 7. Small fix in restore making it able to read some (broken ?)
439 Solaris ufsdump tapes.
440
441 8. Fixed dump to correctly recognise the root filesystem when using
442 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
443 for reporting this bug.
444
445 9. Added the -P <file> option to restore to create a
446 Quick File Access file from an already made dump. Patch
447 contributed by Uwe Gohlke <uwe@ugsoft.de>.
448
449 10. Made restore compile and run on Solaris, making it a
450 possible replacement for the standard ufsrestore. Port was
451 contributed by Uwe Gohlke <uwe@ugsoft.de>.
452
453 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
454 =====================================================================
455
456 1. Added a set of backup scripts from Eugenio Diaz
457 <getnito@yahoo.com> in the examples section. It features
458 automatic (cron based) full and incremental dumping of
459 several filesystems on a separate filesystem.
460
461 2. Fixed a off-by-one miscalculation which disabled dumping
462 a one letter subdirectory. Thanks to Chris Siebenmann
463 <cks@utcc.utoronto.ca> for reporting the bug.
464
465 3. Fixed several restore bugs occuring when trying to
466 restore some missing files on the tape. Thanks to Chris
467 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
468
469 4. Fixed --with-ldopts configure argument passing, installing from
470 a separate object directory, makefile cleanups contributed
471 by <splite@purdue.edu>.
472
473 5. Fix a bug which could caused, in some conditions, the highest
474 number inode of a filesystem, to not be dumped. Many thanks
475 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
476 chase this bug.
477
478 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
479 =======================================================================
480
481 1. Added a mini howto from Patrick Walsh in the examples
482 directory.
483
484 2. Minor man pages syntax corrections. Thanks to
485 Chris Danis <screechco@home.com> for reporting the bugs.
486
487 3. Added a script from David B. Peterson <dave@toppledwagon.com>
488 to the examples section. It features dumping several
489 filesystems to a remote tape drive upon ssh.
490
491 4. Added a patch provided by Richard Jones <rich@annexia.org>
492 which allows BRADEMAX (number of read errors tolerated by
493 dump) to be adjusted using the -I option.
494
495 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
496 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
497 patch.
498
499 6. Add the -l option to restore to specify if, when doing a
500 remote restore, the file used to access the backup is a
501 regular file (the defaults being a tape drive). Restore needs
502 to know this information when reading a remote compressed
503 dump. Previously, this information was autodetected, but
504 the autodetection code fails (with ioctl: Inappropriate ioctl
505 for device) when using a non Linux remote box. Thanks to
506 many users and especially to Eros Albertazzi
507 <eros@lamel.bo.cnr.it> for reporting this.
508
509 7. Found a workaroung for the dump deadlock problem (3 childs
510 stuck in pause(), father in read()). The workaround seems
511 to work for me and several beta-testers. If it doesn't work
512 for you, please report back.
513
514 8. Updated the RPM spec file (BuildPrereq, URL etc).
515
516 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
517 ========================================================================
518
519 1. Fixed the permissions of a newly created QFA file by dump.
520
521 2. Cleaned up the source of dump (the external variables
522 definition was a complete mess, making possible to have
523 objects overlap).
524
525 3. Fixed restore to use the full tape volume path when doing
526 a compare (since it changes the working directory to the
527 filesystem being compared in the process).
528
529 4. Added the -q option to dump which makes dump abort
530 whenever it needs operator attention. It should be
531 easier to use dump in scripts with this option.
532
533 5. Detect the use of incompatible options to dump and
534 refuse them (like -a and -B options together).
535
536 6. Added bzip2 compression to dump/restore (use option -j level
537 to select it). Note that you will need a restore version
538 >= 0.4b24 in order to restore a bzip2 compressed dump.
539 The same warning as for the zlib compression applies:
540 the tape format of a bzip2 dump is not compatible with the
541 original BSD tape format.
542
543 7. Fixed a overflow problem in dump corrupting the dump when
544 very large files were encountered. Thanks to Vladimir Nadvornik
545 for the bug report.
546
547 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
548 kernel buffer/page cache before starting the dump, helping
549 a bit those who use dump on mounted filesystems. Thanks to
550 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
551 for this suggestion.
552
553 9. Updated the RPM spec file following the RedHat changes
554 (dynamically linked binaries now in /usr/sbin etc).
555
556 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
557 which enables restore to recognise multi volume compressed dumps
558 done on CD. Included his scripts for dump (which pipe the dump
559 output directly into cdrecord) and restore. There is now
560 possible to to backups to CD on the fly!
561
562 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
563 ===================================================================
564
565 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
566 Marcus Meissner (Caldera International Security Dept.).
567
568 2. Implement the Sun rmt extended protocol. Patch submitted
569 by Ian Gordon <iangordon@users.sourceforge.net>.
570
571 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
572 the linux kernel header. This ensures that dump always has the
573 latest version of this file. Patch submitted by
574 Andreas Dilger <adilger@turbolinux.com>.
575
576 4. Report any filesystem present in either /etc/fstab with a
577 positive passno or /etc/dumpdates in dump -w output.
578 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
579
580 5. Fixed the looping problem in dump introduced in the
581 previous version.
582
583 6. Changed the -B option of dump to limit the size of
584 _compressed_ output per volume if compression is on.
585 Patch contributed by Helmut Jarausch
586 <jarausch@igpm.rwth-aachen.de>. Note however that, since
587 it is impossible to predict the size of the compressed
588 data before doing the compression, the -B limit is a bit
589 conservative.
590
591 7. Fixed a bug in reading the operator typed file/tape path for
592 the next volume in restore.
593
594 8. Implemented a "-F script" option to restore which permits the
595 user to specify a script which will be launched at the
596 beginning of each tape, useful for automatic programming of
597 tape changers for example. See the restore man page for the
598 script parameters and return codes.
599
600 9. Small fix for the QFA routines provided by Uwe Gohlke
601 <uwe@ugsoft.de>, and some recommendations for QFA uses in
602 the man pages.
603
604 10. Fixed the multivolume restoring where making a mistake
605 to the 'Mount next tape' prompt caused several blocks to
606 be lost.
607
608 11. Enhanced the -e option of dump to take as a parameter a
609 comma separated list of inode numbers.
610
611 12. Added the -E option to dump which specify a file containing
612 inode numbers to exclude from the dump.
613
614 13. Fixed the compressed multi-volume dump + restore.
615
616 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
617 ==================================================================
618
619 1. Made dump report the number of blocks dumped per volume.
620 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
621
622 2. Fix a bug in dump where waiting too much at the 'change volumes'
623 question caused the volume to be rewritten. Thanks to
624 Graham Reed <greed@users.sourceforge.net> for reporting the
625 bug and providing a patch.
626
627 3. Added a compression option to dump, contributed by Jerry
628 Peters <gapeters@worldnet.att.net>.
629
630 WARNING: the compression works only on files/pipes and
631 drives supporting variable block size.
632
633 WARNING2: tapes created using the compression feature are
634 incompatible with the standard dump tape format, and a
635 version of restore >= 0.4b22 will be needed for extraction.
636
637 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
638 architectures. Thanks to Paul Slootman <paul@debian.org> for
639 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
640 it upstream.
641
642 5. Many cleanups (CPP defines, const char warnings, check of
643 ext2fs COMPAT flags, time_t cleanups, added libext2 version
644 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
645
646 6. Made --prefix option work in configure. All the install path
647 are now based on the configure parameters.
648
649 7. Added the Quick File Access mode in dump/restore, contributed
650 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
651 a file tape position for each inode, and this file is used by
652 restore (if called with parameter Q and the filename)
653 to directly position the tape at the file restore is currently
654 working on. This saves hours when restoring single files from
655 large backups, saves the tapes and the drive's head. Use
656 --enable-qfa option of configure to compile in the QFA support.
657
658 8. Added the possibility to dump several files and directories
659 in a single invocation of dump. Thanks to Uwe Gohlke
660 <uwe@ugsoft.de> for implementing this option.
661
662 9. Fixed the dumping and restoring of files with holes
663 (files ending with holes didn't get dumped or restored
664 correctly).
665
666 10. Fixed a socket descriptor leak in dump, which leaved opened
667 3 file descriptors per dump process (and there is one dump
668 process per tape).
669
670 11. Fixed dump large file system support, by explicit use of
671 open64/lseek64/etc functions (explicit use needed because
672 e2fsprogs libraries don't behave well when compiled with
673 FILE_OFFSET_BITS=64).
674
675 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
676 ======================================================================
677
678 1. Fixed some bugs in the dump -w|-W logic introduced by
679 the previous version. Thanks to Andreas Dilger
680 <adilger@turbolinux.com> for his help on this one.
681
682 2. Fixed again a compilation problem when using old e2fs
683 headers (filesystem label related). Thanks to many users
684 who reported this stupid error.
685
686 3. Fixed a build problem on old lib5 based systems dealing with
687 _PATH_MNTTAB being undefined. Thanks to John Adams
688 <johna@onevista.com> for reporting the bug.
689
690 4. Improved the error detection in restore when creating
691 the temporary files in TMPDIR. Now restore will corectly
692 report a 'no space left on device' error instead of
693 strange errors which could imply an archive corruption.
694 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
695 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
696
697 5. Added the throughput information in dump's progression
698 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
699 for the patch.
700
701 6. Use libext2fs's inode scanning routines, which are particularly
702 robust when dealing with errors (especially when having some
703 bad blocks on the filesystem). Many thanks to Colin
704 <colin@horizon.com> for reporting the bug, investigating
705 the issues, finding a workaround, writing the patch and
706 fully testing it... (of course, if this patch will break
707 anything, he is to blame for :-)).
708
709 7. Made dump and restore LFS aware. Dump can dump a filesystem
710 containing large files, generate a large file on output and
711 restore can restore them. This feature is not enabled by
712 default, use --enable-largefile option of configure to enable
713 it (you need to have a LFS aware glibc though). Thanks to
714 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
715 and to Theodore T'so <tytso@valinux.com> for his always
716 useful thoughts.
717
718 8. Made dump ask upon a tape write error if it should rewrite
719 the current volume (assume this is a bad tape) or if it should
720 assume an end-of-tape condition (useful for tape drives which
721 behaves badly at the end of the tape). Thanks to Andreas
722 Dilger <adilger@turbolinux.com> for the suggestion.
723
724 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
725 =======================================================================
726
727 1. Fixed a small compilation problem due to a change
728 in the definintion of the struct sigaction in
729 glibc 2.0 / libc5. Thanks to Gunther Schlegel
730 <schlegel@riege.de> for reporting the bug and to
731 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
732 a fix.
733
734 2. Modified the label and uuid analysis in order to be
735 self-contained (independant of kernel/libc headers). This
736 should fix the compile with older kernel/libc headers and
737 will preserve the functionality. Thanks to Bernhard Erdmann
738 <bernhard.erdmann@gmx.de> for reporting the bug.
739
740 3. The 'exclude inode' option, if applied to a directory
741 inode, excludes now correctly all the leaves of this
742 directory. Thanks to John R. Dennison
743 <gerdesas@users.sourceforge.net> for reporting the bug.
744
745 4. Fixed the '-e' option to disable the possibility
746 to exclude the root inode (which causes the dumps to
747 be unreadable by restore). Prevented array overflow
748 when multiple -e options are used.
749
750 5. Fixed dump to correctly interpret a filesystem argument
751 which is a mountpoint and it is not an absolute path
752 (as specified in the fstab). Thanks to Bernhard R. Erdmann
753 <be@berdmann.de> for reporting the bug.
754
755 6. Made dump able to backup files larger than 2 GB. Note that
756 dump still doesn't cope with files larger than 4 GB.
757
758 7. Restore the real uid and gid before invoking an external
759 RSH program (big hole when dump or restore is suid root!).
760
761 8. Get the values for the default tape device and the location
762 of fstab file from the system headers. Thanks to
763 Andreas Dilger <adilger@turbolinux.com> for the patch.
764
765 9. Made dump -w|-W report all recognized filesystems
766 present in either /etc/fstab or /etc/dumpdates, and present
767 the list in the same order as in fstab file. Thanks
768 to Andreas Dilger <adilger@turbolinux.com> for the patch.
769
770 10. Made dump's -a (automatic end of tape detection) the
771 default. Specifying one of -B, -c, -d or -s options will
772 override the EOM detection. Thanks to Andreas Dilger
773 <adilger@turbolinux.com> for the patch.
774
775 11. Save the ext2 filesystem label into the dump volume label.
776 Specifying a volume label on the command line (-L option)
777 will override this feature. Thanks to Andreas Dilger
778 <adilger@turbolinux.com> for the patch.
779
780 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
781 =====================================================================
782
783 1. Fixed the signal handling in dump (which I broke in 0.4b17)
784 which was causing several strange dump failures (dump
785 hanged or segmentation faults etc).
786
787 2. Specified the default blocksize in the dump man page.
788
789 3. Changed two info messages of restore to be written on stdout
790 instead of stderr in order to leave stderr only for errors
791 or warnings. Thanks to Stephen Atwell
792 <satwell@urbana.css.mot.com> for the suggestion.
793
794 4. Corrected an off by one calculation which prevented
795 dumping a directory having a 1 character name length.
796 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
797 for reporting the bug.
798
799 5. Reinforce dump in order to allow only level 0 and no
800 -u option when dumping a subdirectory, and document
801 this in the man page. Thanks to Bernhard Erdmann
802 <bernhard.erdmann@gmx.de> for reporting the bug.
803
804 6. Fixed a small harmless bug in restore which caused
805 in some conditions hard links to be restored several
806 times (therefore generation some warning messages).
807 Thanks to Kenneth Porter <shiva@well.com> for
808 reporting the bug.
809
810 7. Updated the RPM spec file to the latest RedHat version,
811 providing FHS packaging and other cosmetic changes.
812 You will need RPM version >= 3.0.5 in order to build the RPM.
813
814 8. Updated the configure script to check for libtermcap
815 before checking for libreadline, because we need this
816 library in order to compile the readline support.
817
818 9. Made dump understand the LABEL= and UUID= notation
819 both in /etc/fstab and on the command line. Note that
820 you will need the /proc filesystem in order to use
821 these notations. Thanks to Erik Troan <ewt@redhat.com>
822 for providing the patch.
823
824 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
825 ===================================================================
826
827 1. Fixed a potential buffer overflow in restore. Thanks
828 to Stan Bubrouski <satan@fastdial.net> for reporting
829 the bug.
830
831 2. Fixed a readline-related bug which prevented
832 'cat DUMPFILE | restore -i -f -' from working. Thanks
833 to Charles Karney <karney@users.sourceforge.net>
834 for the bug report.
835
836 3. Changed a few "panic" into "exit", causing restore to
837 be more stable against some attacks (like the last one
838 reported on Bugtraq, although the last version of restore
839 was not vulnerable - just dumped core). Thanks to
840 Andreas Hasenack <andreas@conectiva.com.br> for reporting
841 the bugs to me.
842
843 4. Removed the suid-root bit on dump and restore in the
844 default build (and generated RPMs). It should be safer
845 now. Users who need the suid-root capabilities in order
846 to make network backups should read first the man page
847 of dump and enable the suid bit manually.
848
849 5. Added -ltermcap to the compile parameters for restore
850 when using readline support, in order to make the compile
851 process work on some systems (SuSE ?). Thanks to
852 Patrik Schindler <poc@pocnet.net> for reporting the bug.
853
854 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
855 ====================================================================
856
857 1. The -F script is called now *only* at the end of a tape,
858 not at the end of the dump. Thanks to Christian Haul
859 <haul@informatik.tu-darmstadt.de> for the bug report.
860
861 Normally, the device name and the current volume number
862 are passed on the command line of the script. However,
863 if you want the old style script (with no arguments
864 passed on the command line), you can enable it in
865 configure with the --enable-oldstylefscript.
866
867 2. Use posix signal handling to preserve dump functionality
868 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
869 the patch.
870
871 3. Made the exit code of restore in case of a 'C'ompare
872 command reflect the result of the compare. An exit status
873 of 0 means the dump archive is correct, 1 means tape errors,
874 2 means that some files were modified. Thanks to Kenneth Porter
875 <shiva@well.com> for the suggestion.
876
877 4. Made (finally) quotes work in interactive restore.
878
879 5. Small fixes in order to allow dump to compile with a
880 really old e2fsprogs version. Thanks to Ian Zimmerman
881 <itz@speakeasy.org> for the bug report.
882
883 6. Add GNU readline capabilities to interactive restore.
884 Use configure's --enable-readline flag to enable this feature.
885 Thanks to Patrik Schindler <poc@pocnet.net> for the
886 suggestion.
887
888 7. Do the compare on the fly in restore 'C' mode (this will
889 allow not to exhaust the available /tmp space when
890 ccmparing large files). Thanks to Kenneth Porter
891 <shiva@well.com> for the suggestion.
892
893 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
894 ====================================================================
895
896 1. Fixed some several duplicate 'DUMP: DUMP:' in the
897 output of dump.
898
899 2. Corrected the estimation of blocks to dump. Note that
900 this is still wrong for large directory inodes, due
901 to the size of a BSD directory entry on the tape
902 (estimation is based on the size of the ext2 directory,
903 which is smaller because it doesn't contain the null
904 character at the end).
905
906 3. Made dump report the total number of MB written to
907 tape at the end of run. Thanks to W. Reilly Cooley
908 <wcooley@nakedape.cc> for the patch.
909
910 4. Added the -X option to restore giving the possibility
911 to read the names of the files to be extracted/listed
912 from a text file (in addition of the command line).
913 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
914 patch.
915
916 5. Added the device name and the current volume number
917 as arguments to the end of tape script (dump -F option).
918
919 6. Made the multi-volume dump work again (after having
920 broken it in 0.4b15).
921
922 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
923 ===================================================================
924
925 1. Added a prompt command in interactive restore mode. Thanks
926 to Andreas Dilger <adilger@home.com> for the patch.
927
928 2. Fixed a buffer overflow problem in dump (caused by
929 not checking the size of the filesystem parameter).
930 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
931 reporting this on Bugtraq (and to several dump users
932 who forwarded me his mail).
933
934 3. Added the '-F script' option to dump in order to
935 launch a script at the end of each tape (to be used
936 with a tape changer, or to notify the sysadmin by
937 pager etc.).
938
939 4. Fixed a bug in restore compare code caused by the changes
940 I made in 0.4b14.
941
942 5. Fixed the treatment of options using the old BSD syntax
943 in both dump and restore.
944
945 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
946 =======================================================================
947
948 1. Fixed a bug in dump which may have caused invalid deleted
949 directories to be dumped out if they were deleted after the
950 mapping pass. This could occure on active filesystem and lead
951 to heap corruption (causing dump malfunction in many possible ways).
952 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
953 bug and submitting the patch.
954
955 2. Fixed the handling of the filesystem parameter in dump. A
956 '/mnt/disk' parameter caused the disk contents to be dumped,
957 but a '/mnt/disk/' parameter caused the mountpoint directory
958 to be dumped (generally an empty directory).
959
960 3. Improved the output of dump in order to tell which directory
961 it is currently dumping (when dumping a subtree).
962
963 4. Added the '-e' exclude inode option to dump. Thanks to
964 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
965
966 5. Added a REPORTING-BUGS file in order to provide a guide
967 on how to correctly report a bug in dump/restore.
968
969 6. Fixed a restore problem when restoring a hard link to an inode
970 having the immutable or append-only attribute set. Thanks to
971 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
972
973 7. Fixed a compatibility problem between dumps made on little
974 endian machines (the format was correct) and big endian
975 machines (the format was incorrect). This fix break the
976 compatibility with the older dumps made on big endian
977 machines (sparc, m86k, ppc etc). For the first time in
978 linux dump's history (I believe), the dumps made by *BSD,
979 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
980 so interchangeable. Thanks to Rob Cermak
981 <cermak@ahab.rutgers.edu> for submitting the bug and
982 helping me test the fix.
983
984 8. Fixed the way dump reports the remaining percent/time, if
985 the number of blocks actually dumped exceeds the estimated
986 number of blocks. Thanks to Jean-Paul van der Jagt
987 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
988
989 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
990 ======================================================================
991
992 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
993 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
994
995 2. Removed the requirement to build the RPM as root from the
996 spec file. Thanks to Christian Weisgerber
997 <naddy@mips.rhein-neckar.de> for submitting this.
998
999 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1000 causing dump to block when dumping really huge filesystems.
1001 Many thanks to Patrik Schindler <poc@pocnet.net> for
1002 helping me find this bug.
1003
1004 4. Fixed the treatment for an interrupt signal when dump access
1005 the remote tape through RSH. Thanks to Christian Weisgerber
1006 <naddy@mips.rhein-neckar.de> for providing the patch.
1007
1008 5. Fixed a bug which was causing dump/restore to display
1009 garbage characters instead of the remote host name.
1010
1011 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1012 =====================================================================
1013
1014 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1015 <kukuk@suse.de> for submitting the patch.
1016
1017 2. Fix for the exit code when using the size estimate option of
1018 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1019 submitting the patch.
1020
1021 3. Handle EINTR in atomical reads/writes in dump, which was causing
1022 dump to fail on some systems. Thanks to Eric Jergensen
1023 <eric@dvns.com> for reporting the bug and submitting the patch.
1024
1025 4. Handle more than 16 characters for the device names in dumpdates.
1026 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1027 tracking down the problem and proposing the solution.
1028
1029 5. Fixed a bug in dump which prevented the creation of the
1030 dumpdates file when doing a 0-level dump without already
1031 having a dumpdates file. Thanks to Patrik Schindler
1032 <poc@pocnet.net> for reporting the bug.
1033
1034 6. Changed the way dump 'S' flag reports the size estimate
1035 from number of blocks into bytes (making it compatible
1036 with the Solaris version, and simplifying things for
1037 amanda users). Thanks to Jason L Tibbitts III
1038 <tibbs@math.uh.edu> for reporting the bug.
1039
1040 7. Fixed a compatibility problem in linux/alpha dump tape format.
1041 Now the linux/alpha dump are (again) compatible with the
1042 other dump formats. But this breaks compatibility with
1043 older dumps made on alpha. Thanks to Mike Tibor
1044 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1045
1046 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1047 ======================================================================
1048
1049 1. Added a '--enable-kerberos' to configure.
1050
1051 2. Added a 'S' option to dump which determines the amount of space
1052 that is needed to perform the dump without actually doing it, similar
1053 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1054 <cermak@ahab.rutgers.edu>.
1055
1056 3. Added a 'M' multi-volume option to dump and restore which enables
1057 dumping to multiple files (useful when dumping to an ext2
1058 partition to make several dump files in order to bypass the 2GB
1059 file size limitation). The 'f' argument is treated as a prefix and
1060 the output files will be named <prefix>001, <prefix>002 etc. With
1061 the 'M' flag, restore automatically selects the right file without
1062 asking to enter a new tape each time.
1063
1064 4. Fixed a memory leak which was causing dump to grow very big
1065 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1066 Fearon <jasonf@netrider.org.au> for reporting the bug.
1067
1068 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1069 ======================================================================
1070
1071 1. Make configure test if the system glob routines support
1072 extended syntax (ALTDIRFUNC). If not, use the internal glob
1073 routines instead of system ones. Thanks to Bernhard Sadlowski
1074 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1075 and helping me resolve this and other minor libc5 compiling
1076 glitches.
1077
1078 2. Fix a problem when dumping a ext2fs with the 'filetype'
1079 feature enabled. Thanks to Patrick J. LoPresti
1080 <patl@cag.lcs.mit.edu> for reporting the bug and to
1081 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1082
1083 3. Made the nodump flag work on directories. A directory which
1084 has the nodump flag gets never dumped, regardless of its
1085 contents.
1086
1087 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1088 which allows dump on an active ext3 filesystem. However, this
1089 is a "quick and dirty" patch which enables backup of an ext3
1090 filesystem through the ext2 compatibility (by ignoring the
1091 NEEDS_RECOVERY bit). The journal file is not recognized and
1092 it is dumped (it should not).
1093
1094 5. Test the superblock compatibility flags when dumping, in order
1095 to be sure that we know how to deal with specific features.
1096
1097 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1098 ====================================================================
1099
1100 1. Use lchown instead of chown, fixing a possible security problem
1101 when restoring symlinks (a malicious user could use this
1102 to deliberately corrupt the ownership of important system files).
1103 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1104 this and providing the patch.
1105
1106 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1107 ====================================================================
1108
1109 1. Put dump sources under CVS, added Id tags in all files so
1110 one can use 'ident' on binary files.
1111
1112 2. Added the dump/restore version in the usage text so one can
1113 easily verify the version he is using.
1114
1115 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1116 a va_start/va_end problem on linux-ppc (always call va_start
1117 va_end in pairs each time we use a vararg function).
1118
1119 4. Added again the DT_* constants because old libc does not
1120 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1121 for submitting the bug report.
1122
1123 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1124 this should enable dumping big (huge) filesystems.
1125
1126 6. Added the RSH environment variable in order to be able to
1127 use a rsh replacement like ssh when doing remote backups (and
1128 bypass the security limitations of rcmd). Now you can do remote
1129 backups without being root (or making dump setuid root).
1130
1131 7. Modified again the way dumpdates works. For incremental dumps,
1132 we need to read dumpdates even if we are not using 'u' option.
1133 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1134 this should work.
1135
1136 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1137 ===================================================================
1138
1139 1. Removed the 'k' flag from the restore 'about' text if kerberos
1140 was not compiled in.
1141
1142 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1143 to them (fsetflags takes a char*, setflags an open fd!).
1144
1145 3. (f)setflags is called only if the flags aren't empty. If the
1146 file is a special file, a warning is printed, because changing
1147 flags implies opening the device. Normally, a special file
1148 should not have any flag... (Debian bug #29775, patch provided
1149 by Abhijit Dasgupta <abhijit@ans.net>).
1150
1151 4. Made possible to dump a file system not mentioned in /etc/fstab.
1152 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1153
1154 5. Changed the default behaviour to not create dumpdates
1155 unless 'u' option is specified. Removed the old "debian-patch"
1156 which provided the same thing. (Debian bug #38136, #33818).
1157
1158 6. Removed all those dump*announce, since they were getting old...
1159
1160 7. Added warning messages if dumpdates does not exist and
1161 when an inferior level dump does not exist (except for a level 0
1162 dump).
1163
1164 8. Debugged the glob calls in interactive mode: restore used a
1165 dirent struct which was different from the /usr/include/dirent.h
1166 one (this used to work, is it a glibc2 change?), so none of the
1167 compat glob (which used /usr/include/dirent.h) or the system glob
1168 worked. Restore use now the system dirent (and the system
1169 DT_* constants), which are compatible with BSD ones.
1170
1171 9. Added a configure flag (--with-dumpdatespath) to specify
1172 the location of dumpdates file. By default, it is
1173 /etc/dumpdates.
1174
1175 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1176 included the current date/version in man pages.
1177
1178 11. Corrected the estimation of remaining time when
1179 the operator doesn't change the tapes quickly enough. This
1180 was an old bug, I thought I corrected it, and discovered
1181 that in fact it was corrected in two different places, so
1182 the results canceled each other...
1183
1184 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1185 ===================================================================
1186
1187 1. Integrated multiple patches from RedHat, Debian and SuSE:
1188
1189 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1190 isn't specified.
1191 - several fixes in the man pages.
1192 - update the default tape device to /dev/st0.
1193 - many updates for Linux Alpha (byte ordering, size_t etc).
1194 - buffer overruns.
1195 - use environment variable for TMPDIR (instead of /tmp).
1196 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1197 - workaround egcs bug (RedHat bugs #4281 and #2989).
1198 - wire $(OPT) throughout Makefile's.
1199
1200 2. Upgrade the dump revision to 1, making possible to dump filesystems
1201 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1202
1203 3. Fix some compile warnings, prototype all functions.
1204
1205 4. Use glibc err/glob instead of internal compatibility
1206 routines (only if available).
1207
1208 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1209 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1210
1211 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1212 ======================================================================
1213
1214 1. Integrated the changes from FreeBSD-3.1-RELEASE
1215 (mostly bug fixes, buffer overruns, dump has now an "automatic
1216 tape length calculation" flag, dump/restore can use kerberos now
1217 (this is NOT tested), use environment variables for TAPE and
1218 RMT etc.).
1219
1220 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1221
1222 3. Corrected a bug in restore when using 'C' option with multi-volumes
1223 tapes (files splited accros two tapes give "size changed" errors
1224 when comparing).
1225
1226 4. Corrected the long standing bug when dumping multiple tapes.
1227 This works for me, needs further testing.
1228
1229 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1230 ====================================================================
1231
1232 1. Dump now runs correctly on kernels 2.1.x
1233 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1234
1235 Changes between versions 0.4b2 and 0.4b3
1236 ========================================
1237
1238 1. Use realpath() if available
1239
1240 2. Report statistics
1241
1242 Changes between versions 0.4b1 and 0.4b2
1243 ========================================
1244
1245 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1246 the patch)
1247
1248 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1249
1250 3. Fixed configure.in to correctly handle --enable-rmt
1251
1252 Changes between versions 0.3 and 0.4b1
1253 ======================================
1254
1255 1. Integrated the changes from 4.4BSD-Lite2
1256
1257 2. Integrated the patches from Debian and Red Hat
1258
1259 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1260
1261 4. Changed dump to use the Ext2fs library to get block addresses. This
1262 should solve the endianness problem on SparcLinux.
1263
1264 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1265 distribution's one) to use autoconf
1266
1267 6. Fixed a few minor bugs
1268
1269 Changes between versions 0.2e and 0.2f
1270 ======================================
1271
1272 1. Added the creation of named pipes (fifos) in restore.
1273
1274 2. Added the -N flag in the restore manual page.
1275
1276 3. Added the file kernel.patch which contains the llseek() optimization
1277 patch for 1.2.x kernels.
1278
1279 4. Fixed a bug in the restoration of symbolic links: owner and group were
1280 not restored.
1281
1282 5. Integrated some changes from FreeBSD 2.2.
1283
1284 6. Added a call to ftruncate() after restoring each file to restore
1285 correctly files ending by a hole.
1286
1287 Changes between versions 0.2d and 0.2e
1288 ======================================
1289
1290 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1291 with owner = root (0) and group = root/wheel/whatever (0).
1292
1293 Changes between versions 0.2c and 0.2d
1294 ======================================
1295
1296 1. Dump is now able to backup 2GB+ filesystems.
1297
1298 2. Dump and restore can now be linked as static binaries.
1299
1300 Changes between versions 0.2b and 0.2c
1301 ======================================
1302
1303 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1304
1305 Changes between versions 0.2a and 0.2b
1306 ======================================
1307
1308 1. Really fixed the bug that I should have corrected in 0.2a.
1309
1310 2. Enabled optimization again.
1311
1312 Changes between versions 0.2 and 0.2a
1313 =====================================
1314
1315 1. Disabled the optimization during compilation.
1316
1317 Changes between versions 0.1 and 0.2
1318 ====================================
1319
1320 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1321 the fs_type field (actually, I modified the file fstab.c to make it
1322 use the mntent functions).
1323
1324 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1325 made by dump should be readable by the BSD restore and backups made
1326 by the BSD dump should be readable by restore. Unfortunately, this
1327 means that the dump format has changed between version 0.1 and version
1328 0.2 :-(
1329
1330 3. Dump is now able to backup a subtree, it is no longer limited to whole
1331 filesystems like the BSD version.
1332
1333 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1334 than 2 GB.
1335
1336 Changes between versions 0.0 and 0.1
1337 ====================================
1338
1339 1. Now create links rdump and rrestore during the `make install' step.
1340
1341 2. Linux port specific bugs added to the manual pages
1342
1343 3. Incorrect estimation of the number of tapes blocks fixed when doing
1344 incremental backups.
1345
1346 4. Better ls-like format in restore in interactive mode.