0d7cd0504217624a45b78cb0faf5d0c8b9b712b1
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.257 2004/08/16 09:39:45 stelian Exp $
2
3 Changes between versions 0.4b37 and 0.4b38 (released ????????????)
4 ==================================================================
5
6 1. Fix a couple of troff syntax bugs in the man pages.
7 Thanks to Eric Raymond <esr@thyrsus.com> for the patch.
8
9 2. Made restore use either libncurses or libtermcap, depending
10 on which one is available at configure time.
11
12 3. Fixed restore negative size display bug when comparing a
13 dump containing files over 2GB. Thanks to Steve Bonds
14 <sbonds@users.sourceforge.net> for the bug report.
15
16 Changes between versions 0.4b36 and 0.4b37 (released July 7, 2004)
17 ==================================================================
18
19 1. Added the --enable-staticz configure option which enables
20 dump and restore to be linked with static versions of
21 libz and libbz2 (and dynamic versions of all other libraries).
22 This will make Debian users happy, because libz and libbz2
23 were the only needed libraries living in /usr, all the
24 others live in /lib. In case of system emergency, it is
25 better not to have to rely on an extra filesystem.
26 Thanks to Bdale Garbee <bdale@gag.com> for the suggestion.
27
28 2. Fix compilation on (at least the Linux Debian port to) AMD64.
29 (<ext2fs/ext2_types.h> defines some types (__s64 and __u64)
30 that are also defined by <linux/types.h> (<asm/types.h>) and
31 they conflict).
32
33 3. Make dump's reading of the dumpdates file a bit more robust,
34 preventing dump from crashing when the dumpdates file has
35 been modified by hand.
36
37 4. Fixed some offset calculations in dump code which could
38 lead to "bread lseek errors" on large filesystems. Thanks
39 to Bruce Lowekamp <lowekamp@users.sourceforge.net> for
40 reporting this bug and debugging the issue.
41
42 5. Made dump use the blkid library when searching for devices
43 by label or uuid instead of dump's own routines.
44
45 6. Corrected a bug in dump where a wrong LABEL=... line in
46 /etc/fstab could prevent dump from dumping unrelated
47 filesystems. Thanks to Bruce Lowekamp
48 <lowekamp@users.sourceforge.net> for reporting the bug.
49
50 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
51 ====================================================================
52
53 1. Fixed dump compilation with old gcc versions. Thanks to
54 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
55
56 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
57 when compiling against a recent glibc version.
58
59 3. Fixed a bug in restore preventing the read of a dump tape
60 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
61 <phiggins@transzap.com> for reporting the bug and providing
62 the test case.
63
64 4. Changed dump to enable the creation of volumes of different
65 sizes in a single run (make -B accept a list of values).
66 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
67
68 5. Use the glibc provided minor() and major() macros instead
69 of our own bitmask implementation. This should be safe for
70 when the major/minor namespace will migrate to 32 bits.
71 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
72 the bug.
73
74 6. Made explicit in the dump man page that dump will not create
75 a remote file, it will only write to an already existing one.
76
77 7. Another try at making size estimates better again.
78
79 8. Put back the inconditional running of the end-of-tape
80 script which was changed in 0.434 to be run only when -M
81 or multiple -f were NOT specified. Some users rely on this
82 feature even when it is combined with -M/-f.
83
84 9. Fixed restore when restoring huge backups (where rstdir...
85 temporary files are over 2GB). Thanks to
86 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
87 debugging the issue and making the patch.
88
89 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
90 David <vrtin@users.sourceforge.net> for submitting the bug
91 and providing a test case.
92
93 11. Made dump work with an arbitrary integer level (no more 10
94 levels only limitation). Thanks to Matthew
95 <msvincen@midway.uchicago.edu> for the patch.
96
97 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
98 =======================================================================
99
100 1. Added a note in the dump man page saying that the default
101 blocksize can be 32 if -d is used with a high density argument.
102 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
103 for the patch.
104
105 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
106 LDFLAGS environment variables. Thanks to Arcady Genkin
107 <antipode@users.sourceforge.net> for reporting the bug.
108
109 3. Made -e/-E options of dump accept an unlimited number of inodes
110 to be excluded, rather than a hardcoded maximum. Thanks to
111 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
112
113 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
114 and -D_USE_BSD_SIGNAL defines in configure in order to solve
115 64bit build problems because quad_t is redifined with a
116 different signature. Thanks to Mike Harris <mharris@redhat.com>
117 for reporting this bug.
118
119 5. Made restore build on Solaris, making possible to
120 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
121 <uwe@ugsoft.de> for the patch.
122
123 6. Made an extension in the dump tape format capable of saving
124 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
125 wrote the extension and contributed the restore code back
126 into this codebase. The same extension mechanism will be
127 used in the future to save ACLs...
128
129 7. Made rmt work correctly with regard to QFA and local/remote
130 files and tapes. The remote access will however work only
131 when the dump provided rmt version is used. If you want to
132 use another rmt server, please do not use the QFA feature.
133 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
134
135 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
136 ====================================================================
137
138 1. Fixed the INSTALL file to reflect the actual install paths.
139 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
140 reporting the bug.
141
142 2. Fixed the configure script to only check for headers presence
143 instead of trying to compile them. This should fix issues
144 with old build environments. Thanks to Kari Lempiainen
145 <kari@funky.pp.fi> for reporting the bug.
146
147 3. Fixed restore to correctly ignore sockets when comparing
148 a dump (as socket cannot be properly restored anyway). Thanks
149 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
150
151 4. Fixed restore to correctly access the archive file (-A argument)
152 even when using a remote tape. Thanks to Fabrice Bellet
153 <fabrice@bellet.info> for reporting the bug.
154
155 5. Fixed (again) handling of long (largefile) seeks in rmt.
156 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
157 the bug.
158
159 6. Fixed restore corner case when dealing with large block sizes
160 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
161 <fabrice@bellet.info> for reporting the bug.
162
163 7. Fixed a bug preventing dump to access a filesystem having
164 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
165 for reporting the bug.
166
167 8. Made dump store dump dates using explicit timezones, fixing a
168 problem with incremental dumps if the timezone is modified
169 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
170 the bug report and the patch.
171
172 9. Fixed a bug encountered when dumping individual files (not full
173 filesystems or directories) and dangling symbolic links happen
174 to be in the list of files. For as far as dump is concerned,
175 dangling symbolic links are allowed, and are dumped as is.
176 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
177 bug and providing the fix.
178
179 10. Fixed open and creation modes and permissions for QFA and
180 table-of-contents files in dump and restore. Thanks to
181 Philippe Troin <phil@fifi.org> for the patch.
182
183 11. Fixed the archive file descriptor handling enabling it to be 0.
184 This can happen in some cases when shell redirections are used.
185 Thanks to Philippe Troin <phil@fifi.org> for the patch.
186
187 12. Delayed the opening of archive file until after suid had been
188 dropped (fixing a possible security issue if dump is suid).
189 Thanks to Philippe Troin <phil@fifi.org> for the patch.
190
191 13. Fixed the 'S' command handling in the rmt client part.
192 Thanks to Philippe Troin <phil@fifi.org> for the patch.
193
194 14. Modified the end-of-tape script handling to print out statistics
195 (and stop the timer) before launching the eot script. Also, the eot
196 script does not get run anymore when using -M (which makes sense) or
197 when multiple tapes are listed on the command line
198 (-f tape0,tape1,tapen) (which also makes sense).
199 Thanks to Philippe Troin <phil@fifi.org> for the patch.
200
201 15. Relicensed dump/restore under the 'revised' BSD license, as per
202 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
203
204 16. Added LZO compression to dump. This new compression method has
205 the advantage of being super fast, thus not killing tape streaming
206 on slow machines. Thanks to Helmut Jarausch
207 <jarausch@igpm.rwth-aachen.de> for the patch and to
208 Markus Oberhumer <markus@oberhumer.com> for giving special permission
209 to include his miniLZO project (GPL licensed) in dump/restore.
210
211 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
212 <ant@notatla.demon.co.uk> for reporting the bugs.
213
214 18. Added a special rmt version which can do encryption when writing
215 to tape. Read examples/encrypted_rmt/README for details on
216 how to enable and configure it. Thanks to Ken Lalonde
217 <ken@globalremit.com> for the patch.
218
219 19. Made dump work with 2.5 kernel end of tape early warning semantics.
220 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
221
222 20. Fixed a bug which caused dump -w|-W not to work anymore, because
223 the fs_freq and fs_passno fields in /etc/mtab are always set
224 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
225 reporting the bug.
226
227 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
228 =======================================================================
229
230 1. Added a note in the restore man page clarifying the question
231 'set the permissions on the current directory ?' asked by
232 restore at the end of treatment in -i and -x modes.
233
234 2. Fixed the endianess issues when reading compressed tapes.
235 Thanks to Dark Force <daq4th@users.sourceforge.net> for
236 reporting this bug and providing test cases.
237
238 3. Fixed the "ACL won't be dumped" warning message (which showed
239 an extra, unrelated error message). Thanks to Dragan Krnic
240 <dkrnic@lycos.com> for reporting this bug.
241
242 4. Made dump look first into /etc/mtab, then into /etc/fstab
243 when searching for filesystem paths. Also fixed some problems
244 caused by binding mounts or multiple block device mounts.
245 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
246 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
247 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
248 and #160305, Sourceforge bugs #618699 and #679832).
249
250 5. Made dump's -I option accept the value '0' meaning all the
251 read errors will be ignored. This can be useful when running
252 dump from unattended sessions (like cron jobs). Thanks to
253 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
254
255 6. Fixed the output of dump to indicate 'blocks' instead of
256 'tape blocks' in the various messages (blocks are always
257 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
258 made it clearly print the current blocksize at the start of
259 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
260 the suggestions.
261
262 7. Made rmt understand long (largefiles) seeks.
263
264 8. Fixed build with very old versions of libext2fs, where
265 EXT2_FT_* constants were undefined.
266
267 9. Made dump accept the dumpdates path on the command line
268 (-D file option) instead of using only the hardcoded one.
269 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
270 suggestion.
271
272 10. Enabled rmt, LFS, readline, QFA options by default in
273 ./configure. Updated the configure process (new versions
274 of config.guess, config.sub etc).
275
276 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
277 =======================================================================
278
279 1. Changed dump to use fcntl(F_SETLK) style locking instead
280 of flock() when locking the dumpdates file. With the old
281 locking scheme, a local user having read rights on the
282 dumpdates file could be able to do a Denial of Service attack
283 on dump. In order to lock the dumpdates file with the new
284 scheme, the user would need to have write access on the file.
285 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
286 reporting the bug (originally a bugtraq post).
287
288 2. Fixed interactive 'ls' which caused spurious errors warnings
289 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
290 <jorgen_ostling@users.sourceforge.net> for reporting this
291 bug.
292
293 3. Fixed dump's estimate when dealing with sparse inodes.
294
295 4. Modified dump to allow setting a blocksize bigger than 32kB
296 (raised the limit to 1024kB), because newer hardware needs
297 this for proper operation. Thanks to Dirk Traenapp
298 <dtraenapp@users.sourceforge.net> for reporting this.
299
300 5. Fixed a bug causing Dump to stop and report an error if an
301 inode number in the exclude file was followed by some amount
302 of whitespace. Thanks to Jeffrey Sofferin
303 <sofferin@users.sourceforge.net> for reporting this bug.
304
305 6. Fixed a bug which caused restore, in some particular cases,
306 to ask some 'scary' questions and leave a bunch of RSTTMP
307 directories behind when restoring incremental tapes. Thanks
308 to Philippe Troin <phil@fifi.org> for reporting this bug and
309 providing the test cases.
310
311 7. Changed the wording when inodes are excluded from dump:
312 replaced 'Added inode 7 to exclude list' with
313 'Excluding inode 7 (resize inode) from dump', as suggested
314 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
315
316 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
317 ===================================================================
318
319 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
320 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
321 <eros@lamel.bo.cnr.it> for reporting the bug.
322
323 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
324 ===================================================================
325
326 1. Made dump print out the ext2 logical block number in case of a read
327 error, which can be given as an argument to debugfs' ncheck command,
328 in order to find out the affected inode. Added note about this
329 usage in dump's man page.
330
331 2. Fixed a problem in restore when reading tapes written on big
332 endian machines with very old versions of dump. The patch was
333 contributed by George Helffrich <george@geology.bristol.ac.uk>.
334
335 3. Fixed the tape length calculation when using large tapes
336 and compression. Thanks to Georg Lippold
337 <g_lippold@sourceforge.net> for reporting the bug.
338
339 4. Added a new set of examples in dump_on_cd_2 directory, based
340 on dump_on_cd examples but somewhat enhanced, supporting DVD
341 media, and localized in english and german. Thanks to
342 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
343
344 5. Made dump save 32 bit UID/GID. Internally, this was achieved
345 by switching from the old BSD inode format to the new BSD
346 inode format, which means that the tape format was changed.
347 However, since all restore versions out there should
348 transparently support both inode formats, the change should
349 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
350 reporting the bug.
351
352 6. Fixed a lot of warnings in the code shown when compiling
353 with 'gcc -W'. Thanks to Matthias Andree
354 <matthias.andree@stud.uni-dortmund.de> for reporting this.
355
356 7. Fixed a small markup bug in the dump man page. Thanks to
357 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
358 patch.
359
360 8. Rewrote entirely the man pages using the tmac.an macro
361 package (Linux man page format) instead of the original BSD
362 format. They should be now cleaner and easier to modify.
363
364 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
365 ==================================================================
366
367 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
368 non Linux clients were misinterpreted. The description of the problem
369 (incompatible numbering in Linux mtio opcodes) is documented at
370 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
371 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
372 providing an excellent, cross-platform replacement for rmt in his
373 star package.
374
375 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
376 which caused restore to fail when the inode maps were not entirely
377 contained on the first volume (when using really small volumes or
378 when dumping a huge number of inodes).
379
380 3. Fixed a problem in dump, where files in subdirectories of directories
381 that have the nodump flag set (or being excluded with -e/-E) were
382 sometimes incorrectly dumped (instead of being excluded). The original
383 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
384 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
385 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
386 help testing the patch.
387
388 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
389 which makes one able to pipe the output of dump, by the net, to
390 a remote CD-burner server.
391
392 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
393 and use GNU's symbolic syntax over rmt instead of numerical values
394 to assure multiple platform compatibility.
395
396 6. Documented the -d option in restore.
397
398 7. Added a -v (verbose) mode to dump. For now it just prints the number
399 of the inode being dumped, but this could evolve in future versions
400 to include interesting debugging output.
401
402 8. Added a -o flag to restore, which automatically restores the current
403 directory permissions in -i or -x mode, without asking the operator
404 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
405 and Peter Samuel <peters@e-smith.com>.
406
407 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
408 ====================================================================
409
410 1. Fixed a bug in the QFA feature which could have caused
411 a bad tape positionning on restore (causing extra delays in
412 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
413
414 2. Added a small note in the dump man page specifying that
415 there should be no white space between the option letter and
416 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
417
418 3. Made restore work with older versions of the readline library,
419 by checking in configure for several extended symbols. Restore
420 can now be compiled with a readline as old as the 2.0 release
421 (though it may be a good idea to upgrade it to a more recent
422 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
423 reporting the build failures.
424
425 4. Fixed a performance problem with the QFA file creation in
426 dump, which made unnecessary seeks on the tape slowing down
427 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
428 reporting this issue.
429
430 5. Removed the inclusion of some kernel headers in the dump
431 source, which prevented the compile in some kernel/glibc
432 headers/architecture combination. Thanks to Bdale Garbee
433 <bdale@gag.com> for reporting the bug.
434
435 6. Added the appropriate error message when dump fails to
436 open the output file for writing. Thanks to Amith Varghese
437 <amithv@yahoo.com> for reporting this bug.
438
439 7. Made restore able to understand large Solaris ufsdump tapes
440 (containing inodes bigger than 4194304). Sun have introduced
441 an "extension" to the dump tape format when dealing with
442 those inodes, which was uncorrectly handled by Linux restore.
443 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
444 providing a test case.
445
446 8. Added the -m parameter to dump which optimises the output for
447 inodes having been changed but not modified since the last dump
448 ('changed' and 'modified' have the meaning defined in stat(2)).
449 For those inodes, dump will save only the metadata, instead of
450 saving the entire inode contents. Inodes which are either
451 directories or have been modified since the last dump are saved
452 in a regular way. Uses of this flag must be consistent, meaning
453 that either every dump in an incremental dump set have the flag,
454 or no one has it.
455
456 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
457 =======================================================================
458
459 1. Fixed behaviour of dump when exceeding resource limits
460 (SIGXFSZ treatment).
461
462 2. Added the -L flag to restore to allow the user to specify a
463 maximal allowed number of miscompares when using restore
464 with the -C option to check the backup.
465
466 3. Detailed the manual entry for the -N option of restore.
467
468 4. Added the -a flag to restore to make able doing unattended
469 restores in -i or -x mode (automatically walks through the
470 multiple dump volumes).
471
472 5. Extended the QFA mode to work with local files and/or
473 remote tapes and files. This way, restore can know in advance
474 the tape number and the offset for the inodes to extract and
475 can minimize the extraction time by seeking directly to the
476 good tape/offset.
477
478 6. Added the -A <archive> option to both dump and restore,
479 which makes dump to archive a dump table-of-contents in
480 the specified file to be used by restore to determine
481 whether a file is in the dump file that is being restored.
482 (the archive file syntax is also compatible with the
483 Solaris ufsdump generated one).
484
485 7. Small fix in restore making it able to read some (broken ?)
486 Solaris ufsdump tapes.
487
488 8. Fixed dump to correctly recognise the root filesystem when using
489 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
490 for reporting this bug.
491
492 9. Added the -P <file> option to restore to create a
493 Quick File Access file from an already made dump. Patch
494 contributed by Uwe Gohlke <uwe@ugsoft.de>.
495
496 10. Made restore compile and run on Solaris, making it a
497 possible replacement for the standard ufsrestore. Port was
498 contributed by Uwe Gohlke <uwe@ugsoft.de>.
499
500 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
501 =====================================================================
502
503 1. Added a set of backup scripts from Eugenio Diaz
504 <getnito@yahoo.com> in the examples section. It features
505 automatic (cron based) full and incremental dumping of
506 several filesystems on a separate filesystem.
507
508 2. Fixed a off-by-one miscalculation which disabled dumping
509 a one letter subdirectory. Thanks to Chris Siebenmann
510 <cks@utcc.utoronto.ca> for reporting the bug.
511
512 3. Fixed several restore bugs occuring when trying to
513 restore some missing files on the tape. Thanks to Chris
514 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
515
516 4. Fixed --with-ldopts configure argument passing, installing from
517 a separate object directory, makefile cleanups contributed
518 by <splite@purdue.edu>.
519
520 5. Fix a bug which could caused, in some conditions, the highest
521 number inode of a filesystem, to not be dumped. Many thanks
522 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
523 chase this bug.
524
525 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
526 =======================================================================
527
528 1. Added a mini howto from Patrick Walsh in the examples
529 directory.
530
531 2. Minor man pages syntax corrections. Thanks to
532 Chris Danis <screechco@home.com> for reporting the bugs.
533
534 3. Added a script from David B. Peterson <dave@toppledwagon.com>
535 to the examples section. It features dumping several
536 filesystems to a remote tape drive upon ssh.
537
538 4. Added a patch provided by Richard Jones <rich@annexia.org>
539 which allows BRADEMAX (number of read errors tolerated by
540 dump) to be adjusted using the -I option.
541
542 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
543 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
544 patch.
545
546 6. Add the -l option to restore to specify if, when doing a
547 remote restore, the file used to access the backup is a
548 regular file (the defaults being a tape drive). Restore needs
549 to know this information when reading a remote compressed
550 dump. Previously, this information was autodetected, but
551 the autodetection code fails (with ioctl: Inappropriate ioctl
552 for device) when using a non Linux remote box. Thanks to
553 many users and especially to Eros Albertazzi
554 <eros@lamel.bo.cnr.it> for reporting this.
555
556 7. Found a workaroung for the dump deadlock problem (3 childs
557 stuck in pause(), father in read()). The workaround seems
558 to work for me and several beta-testers. If it doesn't work
559 for you, please report back.
560
561 8. Updated the RPM spec file (BuildPrereq, URL etc).
562
563 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
564 ========================================================================
565
566 1. Fixed the permissions of a newly created QFA file by dump.
567
568 2. Cleaned up the source of dump (the external variables
569 definition was a complete mess, making possible to have
570 objects overlap).
571
572 3. Fixed restore to use the full tape volume path when doing
573 a compare (since it changes the working directory to the
574 filesystem being compared in the process).
575
576 4. Added the -q option to dump which makes dump abort
577 whenever it needs operator attention. It should be
578 easier to use dump in scripts with this option.
579
580 5. Detect the use of incompatible options to dump and
581 refuse them (like -a and -B options together).
582
583 6. Added bzip2 compression to dump/restore (use option -j level
584 to select it). Note that you will need a restore version
585 >= 0.4b24 in order to restore a bzip2 compressed dump.
586 The same warning as for the zlib compression applies:
587 the tape format of a bzip2 dump is not compatible with the
588 original BSD tape format.
589
590 7. Fixed a overflow problem in dump corrupting the dump when
591 very large files were encountered. Thanks to Vladimir Nadvornik
592 for the bug report.
593
594 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
595 kernel buffer/page cache before starting the dump, helping
596 a bit those who use dump on mounted filesystems. Thanks to
597 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
598 for this suggestion.
599
600 9. Updated the RPM spec file following the RedHat changes
601 (dynamically linked binaries now in /usr/sbin etc).
602
603 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
604 which enables restore to recognise multi volume compressed dumps
605 done on CD. Included his scripts for dump (which pipe the dump
606 output directly into cdrecord) and restore. There is now
607 possible to to backups to CD on the fly!
608
609 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
610 ===================================================================
611
612 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
613 Marcus Meissner (Caldera International Security Dept.).
614
615 2. Implement the Sun rmt extended protocol. Patch submitted
616 by Ian Gordon <iangordon@users.sourceforge.net>.
617
618 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
619 the linux kernel header. This ensures that dump always has the
620 latest version of this file. Patch submitted by
621 Andreas Dilger <adilger@turbolinux.com>.
622
623 4. Report any filesystem present in either /etc/fstab with a
624 positive passno or /etc/dumpdates in dump -w output.
625 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
626
627 5. Fixed the looping problem in dump introduced in the
628 previous version.
629
630 6. Changed the -B option of dump to limit the size of
631 _compressed_ output per volume if compression is on.
632 Patch contributed by Helmut Jarausch
633 <jarausch@igpm.rwth-aachen.de>. Note however that, since
634 it is impossible to predict the size of the compressed
635 data before doing the compression, the -B limit is a bit
636 conservative.
637
638 7. Fixed a bug in reading the operator typed file/tape path for
639 the next volume in restore.
640
641 8. Implemented a "-F script" option to restore which permits the
642 user to specify a script which will be launched at the
643 beginning of each tape, useful for automatic programming of
644 tape changers for example. See the restore man page for the
645 script parameters and return codes.
646
647 9. Small fix for the QFA routines provided by Uwe Gohlke
648 <uwe@ugsoft.de>, and some recommendations for QFA uses in
649 the man pages.
650
651 10. Fixed the multivolume restoring where making a mistake
652 to the 'Mount next tape' prompt caused several blocks to
653 be lost.
654
655 11. Enhanced the -e option of dump to take as a parameter a
656 comma separated list of inode numbers.
657
658 12. Added the -E option to dump which specify a file containing
659 inode numbers to exclude from the dump.
660
661 13. Fixed the compressed multi-volume dump + restore.
662
663 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
664 ==================================================================
665
666 1. Made dump report the number of blocks dumped per volume.
667 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
668
669 2. Fix a bug in dump where waiting too much at the 'change volumes'
670 question caused the volume to be rewritten. Thanks to
671 Graham Reed <greed@users.sourceforge.net> for reporting the
672 bug and providing a patch.
673
674 3. Added a compression option to dump, contributed by Jerry
675 Peters <gapeters@worldnet.att.net>.
676
677 WARNING: the compression works only on files/pipes and
678 drives supporting variable block size.
679
680 WARNING2: tapes created using the compression feature are
681 incompatible with the standard dump tape format, and a
682 version of restore >= 0.4b22 will be needed for extraction.
683
684 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
685 architectures. Thanks to Paul Slootman <paul@debian.org> for
686 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
687 it upstream.
688
689 5. Many cleanups (CPP defines, const char warnings, check of
690 ext2fs COMPAT flags, time_t cleanups, added libext2 version
691 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
692
693 6. Made --prefix option work in configure. All the install path
694 are now based on the configure parameters.
695
696 7. Added the Quick File Access mode in dump/restore, contributed
697 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
698 a file tape position for each inode, and this file is used by
699 restore (if called with parameter Q and the filename)
700 to directly position the tape at the file restore is currently
701 working on. This saves hours when restoring single files from
702 large backups, saves the tapes and the drive's head. Use
703 --enable-qfa option of configure to compile in the QFA support.
704
705 8. Added the possibility to dump several files and directories
706 in a single invocation of dump. Thanks to Uwe Gohlke
707 <uwe@ugsoft.de> for implementing this option.
708
709 9. Fixed the dumping and restoring of files with holes
710 (files ending with holes didn't get dumped or restored
711 correctly).
712
713 10. Fixed a socket descriptor leak in dump, which leaved opened
714 3 file descriptors per dump process (and there is one dump
715 process per tape).
716
717 11. Fixed dump large file system support, by explicit use of
718 open64/lseek64/etc functions (explicit use needed because
719 e2fsprogs libraries don't behave well when compiled with
720 FILE_OFFSET_BITS=64).
721
722 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
723 ======================================================================
724
725 1. Fixed some bugs in the dump -w|-W logic introduced by
726 the previous version. Thanks to Andreas Dilger
727 <adilger@turbolinux.com> for his help on this one.
728
729 2. Fixed again a compilation problem when using old e2fs
730 headers (filesystem label related). Thanks to many users
731 who reported this stupid error.
732
733 3. Fixed a build problem on old lib5 based systems dealing with
734 _PATH_MNTTAB being undefined. Thanks to John Adams
735 <johna@onevista.com> for reporting the bug.
736
737 4. Improved the error detection in restore when creating
738 the temporary files in TMPDIR. Now restore will corectly
739 report a 'no space left on device' error instead of
740 strange errors which could imply an archive corruption.
741 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
742 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
743
744 5. Added the throughput information in dump's progression
745 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
746 for the patch.
747
748 6. Use libext2fs's inode scanning routines, which are particularly
749 robust when dealing with errors (especially when having some
750 bad blocks on the filesystem). Many thanks to Colin
751 <colin@horizon.com> for reporting the bug, investigating
752 the issues, finding a workaround, writing the patch and
753 fully testing it... (of course, if this patch will break
754 anything, he is to blame for :-)).
755
756 7. Made dump and restore LFS aware. Dump can dump a filesystem
757 containing large files, generate a large file on output and
758 restore can restore them. This feature is not enabled by
759 default, use --enable-largefile option of configure to enable
760 it (you need to have a LFS aware glibc though). Thanks to
761 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
762 and to Theodore T'so <tytso@valinux.com> for his always
763 useful thoughts.
764
765 8. Made dump ask upon a tape write error if it should rewrite
766 the current volume (assume this is a bad tape) or if it should
767 assume an end-of-tape condition (useful for tape drives which
768 behaves badly at the end of the tape). Thanks to Andreas
769 Dilger <adilger@turbolinux.com> for the suggestion.
770
771 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
772 =======================================================================
773
774 1. Fixed a small compilation problem due to a change
775 in the definintion of the struct sigaction in
776 glibc 2.0 / libc5. Thanks to Gunther Schlegel
777 <schlegel@riege.de> for reporting the bug and to
778 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
779 a fix.
780
781 2. Modified the label and uuid analysis in order to be
782 self-contained (independant of kernel/libc headers). This
783 should fix the compile with older kernel/libc headers and
784 will preserve the functionality. Thanks to Bernhard Erdmann
785 <bernhard.erdmann@gmx.de> for reporting the bug.
786
787 3. The 'exclude inode' option, if applied to a directory
788 inode, excludes now correctly all the leaves of this
789 directory. Thanks to John R. Dennison
790 <gerdesas@users.sourceforge.net> for reporting the bug.
791
792 4. Fixed the '-e' option to disable the possibility
793 to exclude the root inode (which causes the dumps to
794 be unreadable by restore). Prevented array overflow
795 when multiple -e options are used.
796
797 5. Fixed dump to correctly interpret a filesystem argument
798 which is a mountpoint and it is not an absolute path
799 (as specified in the fstab). Thanks to Bernhard R. Erdmann
800 <be@berdmann.de> for reporting the bug.
801
802 6. Made dump able to backup files larger than 2 GB. Note that
803 dump still doesn't cope with files larger than 4 GB.
804
805 7. Restore the real uid and gid before invoking an external
806 RSH program (big hole when dump or restore is suid root!).
807
808 8. Get the values for the default tape device and the location
809 of fstab file from the system headers. Thanks to
810 Andreas Dilger <adilger@turbolinux.com> for the patch.
811
812 9. Made dump -w|-W report all recognized filesystems
813 present in either /etc/fstab or /etc/dumpdates, and present
814 the list in the same order as in fstab file. Thanks
815 to Andreas Dilger <adilger@turbolinux.com> for the patch.
816
817 10. Made dump's -a (automatic end of tape detection) the
818 default. Specifying one of -B, -c, -d or -s options will
819 override the EOM detection. Thanks to Andreas Dilger
820 <adilger@turbolinux.com> for the patch.
821
822 11. Save the ext2 filesystem label into the dump volume label.
823 Specifying a volume label on the command line (-L option)
824 will override this feature. Thanks to Andreas Dilger
825 <adilger@turbolinux.com> for the patch.
826
827 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
828 =====================================================================
829
830 1. Fixed the signal handling in dump (which I broke in 0.4b17)
831 which was causing several strange dump failures (dump
832 hanged or segmentation faults etc).
833
834 2. Specified the default blocksize in the dump man page.
835
836 3. Changed two info messages of restore to be written on stdout
837 instead of stderr in order to leave stderr only for errors
838 or warnings. Thanks to Stephen Atwell
839 <satwell@urbana.css.mot.com> for the suggestion.
840
841 4. Corrected an off by one calculation which prevented
842 dumping a directory having a 1 character name length.
843 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
844 for reporting the bug.
845
846 5. Reinforce dump in order to allow only level 0 and no
847 -u option when dumping a subdirectory, and document
848 this in the man page. Thanks to Bernhard Erdmann
849 <bernhard.erdmann@gmx.de> for reporting the bug.
850
851 6. Fixed a small harmless bug in restore which caused
852 in some conditions hard links to be restored several
853 times (therefore generation some warning messages).
854 Thanks to Kenneth Porter <shiva@well.com> for
855 reporting the bug.
856
857 7. Updated the RPM spec file to the latest RedHat version,
858 providing FHS packaging and other cosmetic changes.
859 You will need RPM version >= 3.0.5 in order to build the RPM.
860
861 8. Updated the configure script to check for libtermcap
862 before checking for libreadline, because we need this
863 library in order to compile the readline support.
864
865 9. Made dump understand the LABEL= and UUID= notation
866 both in /etc/fstab and on the command line. Note that
867 you will need the /proc filesystem in order to use
868 these notations. Thanks to Erik Troan <ewt@redhat.com>
869 for providing the patch.
870
871 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
872 ===================================================================
873
874 1. Fixed a potential buffer overflow in restore. Thanks
875 to Stan Bubrouski <satan@fastdial.net> for reporting
876 the bug.
877
878 2. Fixed a readline-related bug which prevented
879 'cat DUMPFILE | restore -i -f -' from working. Thanks
880 to Charles Karney <karney@users.sourceforge.net>
881 for the bug report.
882
883 3. Changed a few "panic" into "exit", causing restore to
884 be more stable against some attacks (like the last one
885 reported on Bugtraq, although the last version of restore
886 was not vulnerable - just dumped core). Thanks to
887 Andreas Hasenack <andreas@conectiva.com.br> for reporting
888 the bugs to me.
889
890 4. Removed the suid-root bit on dump and restore in the
891 default build (and generated RPMs). It should be safer
892 now. Users who need the suid-root capabilities in order
893 to make network backups should read first the man page
894 of dump and enable the suid bit manually.
895
896 5. Added -ltermcap to the compile parameters for restore
897 when using readline support, in order to make the compile
898 process work on some systems (SuSE ?). Thanks to
899 Patrik Schindler <poc@pocnet.net> for reporting the bug.
900
901 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
902 ====================================================================
903
904 1. The -F script is called now *only* at the end of a tape,
905 not at the end of the dump. Thanks to Christian Haul
906 <haul@informatik.tu-darmstadt.de> for the bug report.
907
908 Normally, the device name and the current volume number
909 are passed on the command line of the script. However,
910 if you want the old style script (with no arguments
911 passed on the command line), you can enable it in
912 configure with the --enable-oldstylefscript.
913
914 2. Use posix signal handling to preserve dump functionality
915 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
916 the patch.
917
918 3. Made the exit code of restore in case of a 'C'ompare
919 command reflect the result of the compare. An exit status
920 of 0 means the dump archive is correct, 1 means tape errors,
921 2 means that some files were modified. Thanks to Kenneth Porter
922 <shiva@well.com> for the suggestion.
923
924 4. Made (finally) quotes work in interactive restore.
925
926 5. Small fixes in order to allow dump to compile with a
927 really old e2fsprogs version. Thanks to Ian Zimmerman
928 <itz@speakeasy.org> for the bug report.
929
930 6. Add GNU readline capabilities to interactive restore.
931 Use configure's --enable-readline flag to enable this feature.
932 Thanks to Patrik Schindler <poc@pocnet.net> for the
933 suggestion.
934
935 7. Do the compare on the fly in restore 'C' mode (this will
936 allow not to exhaust the available /tmp space when
937 ccmparing large files). Thanks to Kenneth Porter
938 <shiva@well.com> for the suggestion.
939
940 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
941 ====================================================================
942
943 1. Fixed some several duplicate 'DUMP: DUMP:' in the
944 output of dump.
945
946 2. Corrected the estimation of blocks to dump. Note that
947 this is still wrong for large directory inodes, due
948 to the size of a BSD directory entry on the tape
949 (estimation is based on the size of the ext2 directory,
950 which is smaller because it doesn't contain the null
951 character at the end).
952
953 3. Made dump report the total number of MB written to
954 tape at the end of run. Thanks to W. Reilly Cooley
955 <wcooley@nakedape.cc> for the patch.
956
957 4. Added the -X option to restore giving the possibility
958 to read the names of the files to be extracted/listed
959 from a text file (in addition of the command line).
960 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
961 patch.
962
963 5. Added the device name and the current volume number
964 as arguments to the end of tape script (dump -F option).
965
966 6. Made the multi-volume dump work again (after having
967 broken it in 0.4b15).
968
969 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
970 ===================================================================
971
972 1. Added a prompt command in interactive restore mode. Thanks
973 to Andreas Dilger <adilger@home.com> for the patch.
974
975 2. Fixed a buffer overflow problem in dump (caused by
976 not checking the size of the filesystem parameter).
977 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
978 reporting this on Bugtraq (and to several dump users
979 who forwarded me his mail).
980
981 3. Added the '-F script' option to dump in order to
982 launch a script at the end of each tape (to be used
983 with a tape changer, or to notify the sysadmin by
984 pager etc.).
985
986 4. Fixed a bug in restore compare code caused by the changes
987 I made in 0.4b14.
988
989 5. Fixed the treatment of options using the old BSD syntax
990 in both dump and restore.
991
992 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
993 =======================================================================
994
995 1. Fixed a bug in dump which may have caused invalid deleted
996 directories to be dumped out if they were deleted after the
997 mapping pass. This could occure on active filesystem and lead
998 to heap corruption (causing dump malfunction in many possible ways).
999 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
1000 bug and submitting the patch.
1001
1002 2. Fixed the handling of the filesystem parameter in dump. A
1003 '/mnt/disk' parameter caused the disk contents to be dumped,
1004 but a '/mnt/disk/' parameter caused the mountpoint directory
1005 to be dumped (generally an empty directory).
1006
1007 3. Improved the output of dump in order to tell which directory
1008 it is currently dumping (when dumping a subtree).
1009
1010 4. Added the '-e' exclude inode option to dump. Thanks to
1011 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
1012
1013 5. Added a REPORTING-BUGS file in order to provide a guide
1014 on how to correctly report a bug in dump/restore.
1015
1016 6. Fixed a restore problem when restoring a hard link to an inode
1017 having the immutable or append-only attribute set. Thanks to
1018 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
1019
1020 7. Fixed a compatibility problem between dumps made on little
1021 endian machines (the format was correct) and big endian
1022 machines (the format was incorrect). This fix break the
1023 compatibility with the older dumps made on big endian
1024 machines (sparc, m86k, ppc etc). For the first time in
1025 linux dump's history (I believe), the dumps made by *BSD,
1026 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
1027 so interchangeable. Thanks to Rob Cermak
1028 <cermak@ahab.rutgers.edu> for submitting the bug and
1029 helping me test the fix.
1030
1031 8. Fixed the way dump reports the remaining percent/time, if
1032 the number of blocks actually dumped exceeds the estimated
1033 number of blocks. Thanks to Jean-Paul van der Jagt
1034 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
1035
1036 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
1037 ======================================================================
1038
1039 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
1040 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
1041
1042 2. Removed the requirement to build the RPM as root from the
1043 spec file. Thanks to Christian Weisgerber
1044 <naddy@mips.rhein-neckar.de> for submitting this.
1045
1046 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1047 causing dump to block when dumping really huge filesystems.
1048 Many thanks to Patrik Schindler <poc@pocnet.net> for
1049 helping me find this bug.
1050
1051 4. Fixed the treatment for an interrupt signal when dump access
1052 the remote tape through RSH. Thanks to Christian Weisgerber
1053 <naddy@mips.rhein-neckar.de> for providing the patch.
1054
1055 5. Fixed a bug which was causing dump/restore to display
1056 garbage characters instead of the remote host name.
1057
1058 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1059 =====================================================================
1060
1061 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1062 <kukuk@suse.de> for submitting the patch.
1063
1064 2. Fix for the exit code when using the size estimate option of
1065 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1066 submitting the patch.
1067
1068 3. Handle EINTR in atomical reads/writes in dump, which was causing
1069 dump to fail on some systems. Thanks to Eric Jergensen
1070 <eric@dvns.com> for reporting the bug and submitting the patch.
1071
1072 4. Handle more than 16 characters for the device names in dumpdates.
1073 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1074 tracking down the problem and proposing the solution.
1075
1076 5. Fixed a bug in dump which prevented the creation of the
1077 dumpdates file when doing a 0-level dump without already
1078 having a dumpdates file. Thanks to Patrik Schindler
1079 <poc@pocnet.net> for reporting the bug.
1080
1081 6. Changed the way dump 'S' flag reports the size estimate
1082 from number of blocks into bytes (making it compatible
1083 with the Solaris version, and simplifying things for
1084 amanda users). Thanks to Jason L Tibbitts III
1085 <tibbs@math.uh.edu> for reporting the bug.
1086
1087 7. Fixed a compatibility problem in linux/alpha dump tape format.
1088 Now the linux/alpha dump are (again) compatible with the
1089 other dump formats. But this breaks compatibility with
1090 older dumps made on alpha. Thanks to Mike Tibor
1091 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1092
1093 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1094 ======================================================================
1095
1096 1. Added a '--enable-kerberos' to configure.
1097
1098 2. Added a 'S' option to dump which determines the amount of space
1099 that is needed to perform the dump without actually doing it, similar
1100 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1101 <cermak@ahab.rutgers.edu>.
1102
1103 3. Added a 'M' multi-volume option to dump and restore which enables
1104 dumping to multiple files (useful when dumping to an ext2
1105 partition to make several dump files in order to bypass the 2GB
1106 file size limitation). The 'f' argument is treated as a prefix and
1107 the output files will be named <prefix>001, <prefix>002 etc. With
1108 the 'M' flag, restore automatically selects the right file without
1109 asking to enter a new tape each time.
1110
1111 4. Fixed a memory leak which was causing dump to grow very big
1112 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1113 Fearon <jasonf@netrider.org.au> for reporting the bug.
1114
1115 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1116 ======================================================================
1117
1118 1. Make configure test if the system glob routines support
1119 extended syntax (ALTDIRFUNC). If not, use the internal glob
1120 routines instead of system ones. Thanks to Bernhard Sadlowski
1121 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1122 and helping me resolve this and other minor libc5 compiling
1123 glitches.
1124
1125 2. Fix a problem when dumping a ext2fs with the 'filetype'
1126 feature enabled. Thanks to Patrick J. LoPresti
1127 <patl@cag.lcs.mit.edu> for reporting the bug and to
1128 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1129
1130 3. Made the nodump flag work on directories. A directory which
1131 has the nodump flag gets never dumped, regardless of its
1132 contents.
1133
1134 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1135 which allows dump on an active ext3 filesystem. However, this
1136 is a "quick and dirty" patch which enables backup of an ext3
1137 filesystem through the ext2 compatibility (by ignoring the
1138 NEEDS_RECOVERY bit). The journal file is not recognized and
1139 it is dumped (it should not).
1140
1141 5. Test the superblock compatibility flags when dumping, in order
1142 to be sure that we know how to deal with specific features.
1143
1144 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1145 ====================================================================
1146
1147 1. Use lchown instead of chown, fixing a possible security problem
1148 when restoring symlinks (a malicious user could use this
1149 to deliberately corrupt the ownership of important system files).
1150 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1151 this and providing the patch.
1152
1153 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1154 ====================================================================
1155
1156 1. Put dump sources under CVS, added Id tags in all files so
1157 one can use 'ident' on binary files.
1158
1159 2. Added the dump/restore version in the usage text so one can
1160 easily verify the version he is using.
1161
1162 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1163 a va_start/va_end problem on linux-ppc (always call va_start
1164 va_end in pairs each time we use a vararg function).
1165
1166 4. Added again the DT_* constants because old libc does not
1167 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1168 for submitting the bug report.
1169
1170 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1171 this should enable dumping big (huge) filesystems.
1172
1173 6. Added the RSH environment variable in order to be able to
1174 use a rsh replacement like ssh when doing remote backups (and
1175 bypass the security limitations of rcmd). Now you can do remote
1176 backups without being root (or making dump setuid root).
1177
1178 7. Modified again the way dumpdates works. For incremental dumps,
1179 we need to read dumpdates even if we are not using 'u' option.
1180 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1181 this should work.
1182
1183 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1184 ===================================================================
1185
1186 1. Removed the 'k' flag from the restore 'about' text if kerberos
1187 was not compiled in.
1188
1189 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1190 to them (fsetflags takes a char*, setflags an open fd!).
1191
1192 3. (f)setflags is called only if the flags aren't empty. If the
1193 file is a special file, a warning is printed, because changing
1194 flags implies opening the device. Normally, a special file
1195 should not have any flag... (Debian bug #29775, patch provided
1196 by Abhijit Dasgupta <abhijit@ans.net>).
1197
1198 4. Made possible to dump a file system not mentioned in /etc/fstab.
1199 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1200
1201 5. Changed the default behaviour to not create dumpdates
1202 unless 'u' option is specified. Removed the old "debian-patch"
1203 which provided the same thing. (Debian bug #38136, #33818).
1204
1205 6. Removed all those dump*announce, since they were getting old...
1206
1207 7. Added warning messages if dumpdates does not exist and
1208 when an inferior level dump does not exist (except for a level 0
1209 dump).
1210
1211 8. Debugged the glob calls in interactive mode: restore used a
1212 dirent struct which was different from the /usr/include/dirent.h
1213 one (this used to work, is it a glibc2 change?), so none of the
1214 compat glob (which used /usr/include/dirent.h) or the system glob
1215 worked. Restore use now the system dirent (and the system
1216 DT_* constants), which are compatible with BSD ones.
1217
1218 9. Added a configure flag (--with-dumpdatespath) to specify
1219 the location of dumpdates file. By default, it is
1220 /etc/dumpdates.
1221
1222 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1223 included the current date/version in man pages.
1224
1225 11. Corrected the estimation of remaining time when
1226 the operator doesn't change the tapes quickly enough. This
1227 was an old bug, I thought I corrected it, and discovered
1228 that in fact it was corrected in two different places, so
1229 the results canceled each other...
1230
1231 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1232 ===================================================================
1233
1234 1. Integrated multiple patches from RedHat, Debian and SuSE:
1235
1236 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1237 isn't specified.
1238 - several fixes in the man pages.
1239 - update the default tape device to /dev/st0.
1240 - many updates for Linux Alpha (byte ordering, size_t etc).
1241 - buffer overruns.
1242 - use environment variable for TMPDIR (instead of /tmp).
1243 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1244 - workaround egcs bug (RedHat bugs #4281 and #2989).
1245 - wire $(OPT) throughout Makefile's.
1246
1247 2. Upgrade the dump revision to 1, making possible to dump filesystems
1248 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1249
1250 3. Fix some compile warnings, prototype all functions.
1251
1252 4. Use glibc err/glob instead of internal compatibility
1253 routines (only if available).
1254
1255 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1256 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1257
1258 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1259 ======================================================================
1260
1261 1. Integrated the changes from FreeBSD-3.1-RELEASE
1262 (mostly bug fixes, buffer overruns, dump has now an "automatic
1263 tape length calculation" flag, dump/restore can use kerberos now
1264 (this is NOT tested), use environment variables for TAPE and
1265 RMT etc.).
1266
1267 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1268
1269 3. Corrected a bug in restore when using 'C' option with multi-volumes
1270 tapes (files splited accros two tapes give "size changed" errors
1271 when comparing).
1272
1273 4. Corrected the long standing bug when dumping multiple tapes.
1274 This works for me, needs further testing.
1275
1276 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1277 ====================================================================
1278
1279 1. Dump now runs correctly on kernels 2.1.x
1280 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1281
1282 Changes between versions 0.4b2 and 0.4b3
1283 ========================================
1284
1285 1. Use realpath() if available
1286
1287 2. Report statistics
1288
1289 Changes between versions 0.4b1 and 0.4b2
1290 ========================================
1291
1292 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1293 the patch)
1294
1295 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1296
1297 3. Fixed configure.in to correctly handle --enable-rmt
1298
1299 Changes between versions 0.3 and 0.4b1
1300 ======================================
1301
1302 1. Integrated the changes from 4.4BSD-Lite2
1303
1304 2. Integrated the patches from Debian and Red Hat
1305
1306 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1307
1308 4. Changed dump to use the Ext2fs library to get block addresses. This
1309 should solve the endianness problem on SparcLinux.
1310
1311 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1312 distribution's one) to use autoconf
1313
1314 6. Fixed a few minor bugs
1315
1316 Changes between versions 0.2e and 0.2f
1317 ======================================
1318
1319 1. Added the creation of named pipes (fifos) in restore.
1320
1321 2. Added the -N flag in the restore manual page.
1322
1323 3. Added the file kernel.patch which contains the llseek() optimization
1324 patch for 1.2.x kernels.
1325
1326 4. Fixed a bug in the restoration of symbolic links: owner and group were
1327 not restored.
1328
1329 5. Integrated some changes from FreeBSD 2.2.
1330
1331 6. Added a call to ftruncate() after restoring each file to restore
1332 correctly files ending by a hole.
1333
1334 Changes between versions 0.2d and 0.2e
1335 ======================================
1336
1337 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1338 with owner = root (0) and group = root/wheel/whatever (0).
1339
1340 Changes between versions 0.2c and 0.2d
1341 ======================================
1342
1343 1. Dump is now able to backup 2GB+ filesystems.
1344
1345 2. Dump and restore can now be linked as static binaries.
1346
1347 Changes between versions 0.2b and 0.2c
1348 ======================================
1349
1350 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1351
1352 Changes between versions 0.2a and 0.2b
1353 ======================================
1354
1355 1. Really fixed the bug that I should have corrected in 0.2a.
1356
1357 2. Enabled optimization again.
1358
1359 Changes between versions 0.2 and 0.2a
1360 =====================================
1361
1362 1. Disabled the optimization during compilation.
1363
1364 Changes between versions 0.1 and 0.2
1365 ====================================
1366
1367 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1368 the fs_type field (actually, I modified the file fstab.c to make it
1369 use the mntent functions).
1370
1371 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1372 made by dump should be readable by the BSD restore and backups made
1373 by the BSD dump should be readable by restore. Unfortunately, this
1374 means that the dump format has changed between version 0.1 and version
1375 0.2 :-(
1376
1377 3. Dump is now able to backup a subtree, it is no longer limited to whole
1378 filesystems like the BSD version.
1379
1380 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1381 than 2 GB.
1382
1383 Changes between versions 0.0 and 0.1
1384 ====================================
1385
1386 1. Now create links rdump and rrestore during the `make install' step.
1387
1388 2. Linux port specific bugs added to the manual pages
1389
1390 3. Incorrect estimation of the number of tapes blocks fixed when doing
1391 incremental backups.
1392
1393 4. Better ls-like format in restore in interactive mode.