Properly deal with inodes excluded from incremental dump
[dump.git] / CHANGES
1 $Id: CHANGES,v 1.310 2010/03/22 16:08:10 stelian Exp $
2
3 Changes between versions 0.4b42 and 0.4b43 (released ?????????????)
4 ===================================================================
5
6 1. Fix a bug in dump making impossible to handle large toc files
7 (> 2 GB). Thanks to X DUGi <xdugi@users.sourceforge.net> for
8 reporting the bug (Sourceforge bug #2820629)
9
10 2. Fix 'restore -x' in multi-volume mode, which caused files being
11 spanned on the first and second volumes to be incorrectly extracted.
12 Thanks to Adam Tkac <atkac@redhat.com> for reporting the bug.
13 (there may be several bug reports about this issue, including
14 Sourceforge bug #2117008, RedHat bugs #232415 and #444958).
15
16 3. Remove -lselinux -lsepol from the standard libraries list,
17 they shouldn't be needed if selinux is not enabled in dump
18 (this also fixes a build failure when selinux libraries are
19 not installed).
20
21 4. Fix restoration of extended attributes of fifos and device nodes.
22 Thanks to Igor Zhbanov <izh1979@gmail.com> for the bug report.
23
24 5. Don't attempt to set extended attributes on files that were not
25 extracted in 'restore -N' mode. Thanks to Jan Görig
26 <jgorig@users.sourceforge.net> for the patch.
27
28 6. Make the dump man page explicit about ext4 support.
29
30 7. Fix a bug in dump which caused EA entries to be unrecognizable by
31 restore in some corner cases. Add a workaround to restore making
32 it able to properly deal with those corrupted EA entries. Thanks
33 to John Austin <jaustin1@users.sourceforge.net> for reporting
34 the bug.
35
36 8. Fix some issues when restoring a dump which was generated using
37 exclusion patterns (either via -e or via the nodump attribute)
38 (see the Debian bug #574667 for details. Thanks to Frédéric
39 Brière <fbriere@fbriere.net> for the bug report and the associated
40 patch.
41
42 Changes between versions 0.4b41 and 0.4b42 (released June 18, 2009)
43 ===================================================================
44
45 1. Fix printout of the 'Connection to' message in dump/restore.
46 Thanks to Dale Wiles <dwiles@users.sourceforge.net> for the
47 bug report and its fix.
48
49 2. Fix dump -w/-W output for filesystems having the last backup
50 level equal to 0. Thanks to Pascal Bouchareine
51 <kalou@users.sourceforge.net> for reporting the bug.
52
53 3. Enable restore to handle restoring onto a different SELinux
54 policy from the dump. Thanks to Tony Nelson
55 <tony_nelson@users.sourceforge.net> for the patch.
56 (see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=189845
57 for details)
58
59 4. Fix EA set failures when restoring immutable files. Thanks
60 to Andrew Kroeger for the patch.
61
62 5. Fix "mode file too large" errors when restoring huge backups.
63 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
64 report.
65
66 6. Add the ability to link against libtinfo library if present,
67 instead of libtermcap or libncurses libraries. Thanks to
68 Adam Tkac <atkac@redhat.com> for the patch.
69
70 7. When comparing a backup, do not consider to be an error the fact
71 that we encounter files created while dump was in progress.
72 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
73 report.
74
75 8. Force '-a' to be the default value when running 'restore -C'.
76 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
77 report.
78
79 9. Many improvements to the 'cron_dump_to_disk' example.
80 Thanks to Aaron S. Hawley <ashawley@users.sourceforge.net> for
81 the patch.
82
83 10. Fix the QFA generation when extended attributes are backuped
84 along with the inodes. Prior to this fix, the entries for
85 some inodes may get corrupted (duplicated entries or incorrect
86 ones), making the QFA file unusable for repositionning in
87 restore. Many thanks to Kenneth Porter <shiva@sewingwitch.com>
88 for the bug report and the testing of the fix.
89
90 11. Fix EA restoration in debug mode (Sourceforge bug #1986216).
91
92 12. Stefan Auracher <star7@onlinehome.de> noticed that the Tower
93 of Hanoi backup strategy documented in the man page wasn't
94 actually based on the Tower of Hanoi algorithm. The man page
95 was updated accordingly.
96
97 13. Fix missing level information from dump output when using
98 the default level (RedHat bug #493635). Thanks to Adam Tkac
99 <atkac@redhat.com> for the patch.
100
101 14. Fix the dump man page to reflect the fact that the default
102 dump level is 0 not 9 (RedHat bug #356121). Thanks to Adam Tkac
103 <atkac@redhat.com> for the patch.
104
105 15. Fixed a few spelling errors in the man pages (RedHat bug #489853).
106 Thanks to Adam Tkac <atkac@redhat.com> for the patch.
107
108 16. Fixed restore man page and program usage which incorrectly stated
109 that -P and -A were both allowed in the same invocation (RedHat
110 bug #490627). Thanks to Adam Tkac <atkac@redhat.com> for the patch.
111
112 17. Use sys_clone under Linux to share I/O contexts between dump
113 processes, thus drastically increasing the performance of dump
114 under CFQ (which is the default I/O scheduler used in a number of
115 distributions). Thanks to Jeff Moyer <jmoyer@redhat.com> for the
116 patch.
117
118 18. Add (preliminary) ext4 support - thanks to libext2fs which does
119 all the job for us. Thanks to Gertjan van Wingerde
120 <gwingerde@gmail.com> for the patch.
121
122 Changes between versions 0.4b40 and 0.4b41 (released January 2, 2006)
123 =====================================================================
124
125 1. Fix restore of dumped Access Control Lists. The previous
126 code for EA works fine, but ACLs needed conversion from the
127 ext2/3 disk format to posix_acl format before restoring.
128
129 2. Fix some issues with restoration of EA on big endian
130 platforms.
131
132 3. Fix restore when the symtab is over 2GB in size.
133
134 4. Made the directory hash indexing an optional feature,
135 accessible by the '-H' option of restore, and disable it
136 by default.
137
138 5. Fixed dump to not include extended attributes information
139 in the toc (archive) file which confused restore -t.
140
141 Changes between versions 0.4b39 and 0.4b40 (released May 2, 2005)
142 =================================================================
143
144 1. Changed restore to emit warnings (instead of emitting a fatal
145 error) if a file (or a directory) is unavailable for a
146 comparision (if the user doesn't have the necessary permissions
147 to access it for example). Thanks to Kenneth Porter
148 <shiva@sewingwitch.com> for the bug report.
149
150 2. Re-done the 'do not save directory entries to non-dumped inodes
151 (excluded from dump)' feature. The previous implementation
152 worked well for excluded directories but not for regular files.
153 Thanks to Kenneth Porter <shiva@sewingwitch.com> for the bug
154 report.
155
156 3. Fixed a bug in dump where the tape size was miscalculated when
157 the user used -d/-s to specify the tape characteristics. Thanks
158 to Philip Goisman <goisman@physics.arizona.edu> for reporting
159 the bug.
160
161 4. Fixed another bug introduced in restore with the hashtree
162 implementation. This one caused restore to stop saying
163 "removenode: non-empty directory" in some cases.
164
165 5. Added support for dumping and restoring ext2/3 extended
166 attributes (EA), like the access control lists (ACL) or
167 the security labels used by SELinux.
168
169 Changes between versions 0.4b38 and 0.4b39 (released January 21, 2005)
170 ======================================================================
171
172 1. The newly added dump_on_cd_3 example was buggy, replace it
173 with an updated version from Andrew Basterfield
174 <bob@cemetery.homeunix.org>.
175
176 2. Made restore to chdir() back into the initial directory when
177 dumping core while aborting a comparision operation. The
178 previous behaviour was to write the corefile at the root of
179 the directory being compared, which could very well be
180 read only and preventing the corefile generation. Thanks
181 to Kenneth Porter <shiva@sewingwitch.com> for the bug report.
182
183 3. Silenced the failure to call fgetflags() when comparing an
184 entry which has no ext2 attributes (as in lsattr()).
185
186 4. Fix a brown paper bug in restore -C which broke restore and
187 caused modifications on the filesystem being compared
188 (directories containing a file with the same name as the
189 directory get renamed to RSTTMP...). Thanks to Kenneth Porter
190 <shiva@sewingwitch.com> for finding the bug and helping me
191 reproduce it.
192
193 5. Made restore -C force the -N flag (no writing allowed on
194 the disk) in order to prevent more bugs like the above one.
195
196 Changes between versions 0.4b37 and 0.4b38 (released January 7, 2005)
197 =====================================================================
198
199 1. Fix a couple of troff syntax bugs in the man pages.
200 Thanks to Eric Raymond <esr@thyrsus.com> for the patch.
201
202 2. Made restore use either libncurses or libtermcap, depending
203 on which one is available at configure time.
204
205 3. Fixed restore negative size display bug when comparing a
206 dump containing files over 2GB. Thanks to Steve Bonds
207 <sbonds@users.sourceforge.net> for the bug report.
208
209 4. Do not save directory entries to non-dumped inodes
210 (excluded from dump). This will eliminate the 'missing
211 file' warnings when doing 'restore -C'.
212
213 5. Fix dump crash when backuping a huge (2TB) filesystem,
214 due to a bogus calculation on the inode map size.
215 Thanks to Kevin B. Haines <K.B.Haines@rl.ac.uk> for
216 submitting the bug and testing the fix.
217
218 6. Fix a problem in restore where the final \0 in the symbolic
219 link names could have been lost, generating corrupt filenames.
220 Thanks to Kyle Wilson <kyle.wilson@amd.com> for reporting the
221 bug.
222
223 7. Implemented a hash list for the directory names in restore.
224 The linear list used before caused problems in interactive
225 restores when dealing with directories having thousands of
226 entries. Thanks to Brian Ristuccia <bristuccia@starentnetworks.com>
227 for reporting the bug.
228
229 8. Improved restore -C, this time including the directory
230 attributes into the comparision.
231
232 9. Made restore understand tapes containing EA/ACLs (which will
233 be dumped by the next version of dump). In this version
234 extended attributes on the tape are ignored, for full EA/ACL
235 support wait for the next version or try the experimental EA
236 patch.
237
238 Changes between versions 0.4b36 and 0.4b37 (released July 7, 2004)
239 ==================================================================
240
241 1. Added the --enable-staticz configure option which enables
242 dump and restore to be linked with static versions of
243 libz and libbz2 (and dynamic versions of all other libraries).
244 This will make Debian users happy, because libz and libbz2
245 were the only needed libraries living in /usr, all the
246 others live in /lib. In case of system emergency, it is
247 better not to have to rely on an extra filesystem.
248 Thanks to Bdale Garbee <bdale@gag.com> for the suggestion.
249
250 2. Fix compilation on (at least the Linux Debian port to) AMD64.
251 (<ext2fs/ext2_types.h> defines some types (__s64 and __u64)
252 that are also defined by <linux/types.h> (<asm/types.h>) and
253 they conflict).
254
255 3. Make dump's reading of the dumpdates file a bit more robust,
256 preventing dump from crashing when the dumpdates file has
257 been modified by hand.
258
259 4. Fixed some offset calculations in dump code which could
260 lead to "bread lseek errors" on large filesystems. Thanks
261 to Bruce Lowekamp <lowekamp@users.sourceforge.net> for
262 reporting this bug and debugging the issue.
263
264 5. Made dump use the blkid library when searching for devices
265 by label or uuid instead of dump's own routines.
266
267 6. Corrected a bug in dump where a wrong LABEL=... line in
268 /etc/fstab could prevent dump from dumping unrelated
269 filesystems. Thanks to Bruce Lowekamp
270 <lowekamp@users.sourceforge.net> for reporting the bug.
271
272 Changes between versions 0.4b35 and 0.4b36 (released April 21, 2004)
273 ====================================================================
274
275 1. Fixed dump compilation with old gcc versions. Thanks to
276 Mike Castle <dalgoda@users.sourceforge.net> for the patch.
277
278 2. Fixed some warnings (howmany, roundup, powerof2 redefined)
279 when compiling against a recent glibc version.
280
281 3. Fixed a bug in restore preventing the read of a dump tape
282 written with Solaris 7 ufsdump. Thanks to Patrick Higgins
283 <phiggins@transzap.com> for reporting the bug and providing
284 the test case.
285
286 4. Changed dump to enable the creation of volumes of different
287 sizes in a single run (make -B accept a list of values).
288 Patch contributed by Florian Zumbiehl <florz@gmx.de>.
289
290 5. Use the glibc provided minor() and major() macros instead
291 of our own bitmask implementation. This should be safe for
292 when the major/minor namespace will migrate to 32 bits.
293 Thanks to Zhang Jun <zhangjun@nanjing-fnst.com> for reporting
294 the bug.
295
296 6. Made explicit in the dump man page that dump will not create
297 a remote file, it will only write to an already existing one.
298
299 7. Another try at making size estimates better again.
300
301 8. Put back the inconditional running of the end-of-tape
302 script which was changed in 0.434 to be run only when -M
303 or multiple -f were NOT specified. Some users rely on this
304 feature even when it is combined with -M/-f.
305
306 9. Fixed restore when restoring huge backups (where rstdir...
307 temporary files are over 2GB). Thanks to
308 Raphael Jaffey <rjaffey@artic.edu> for reporting this,
309 debugging the issue and making the patch.
310
311 10. Made restore understand FreeBSD UFS2 tapes. Thanks to
312 David <vrtin@users.sourceforge.net> for submitting the bug
313 and providing a test case.
314
315 11. Made dump work with an arbitrary integer level (no more 10
316 levels only limitation). Thanks to Matthew
317 <msvincen@midway.uchicago.edu> for the patch.
318
319 Changes between versions 0.4b34 and 0.4b35 (released December 21, 2003)
320 =======================================================================
321
322 1. Added a note in the dump man page saying that the default
323 blocksize can be 32 if -d is used with a high density argument.
324 Thanks to Antonios Christofides <A.Christofides@itia.ntua.gr>
325 for the patch.
326
327 2. Fixed configure to correctly understand CPPFLAGS, CFLAGS,
328 LDFLAGS environment variables. Thanks to Arcady Genkin
329 <antipode@users.sourceforge.net> for reporting the bug.
330
331 3. Made -e/-E options of dump accept an unlimited number of inodes
332 to be excluded, rather than a hardcoded maximum. Thanks to
333 Dietrich Rothe <d-rothe@users.sourceforge.net> for the patch.
334
335 4. Updated the autoconf system to 2.50. Forced the -D_BSD_SOURCE
336 and -D_USE_BSD_SIGNAL defines in configure in order to solve
337 64bit build problems because quad_t is redifined with a
338 different signature. Thanks to Mike Harris <mharris@redhat.com>
339 for reporting this bug.
340
341 5. Made restore build on Solaris, making possible to
342 restore Linux's "enhanced" tapes. Thanks to Uwe Gohlke
343 <uwe@ugsoft.de> for the patch.
344
345 6. Made an extension in the dump tape format capable of saving
346 MacOSX specific inode extensions. Uwe Gohlke <uwe@ugsoft.de>
347 wrote the extension and contributed the restore code back
348 into this codebase. The same extension mechanism will be
349 used in the future to save ACLs...
350
351 7. Made rmt work correctly with regard to QFA and local/remote
352 files and tapes. The remote access will however work only
353 when the dump provided rmt version is used. If you want to
354 use another rmt server, please do not use the QFA feature.
355 Thanks to Uwe Gohlke <uwe@ugsoft.de> for the patch.
356
357 Changes between versions 0.4b33 and 0.4b34 (released April 18, 2003)
358 ====================================================================
359
360 1. Fixed the INSTALL file to reflect the actual install paths.
361 Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
362 reporting the bug.
363
364 2. Fixed the configure script to only check for headers presence
365 instead of trying to compile them. This should fix issues
366 with old build environments. Thanks to Kari Lempiainen
367 <kari@funky.pp.fi> for reporting the bug.
368
369 3. Fixed restore to correctly ignore sockets when comparing
370 a dump (as socket cannot be properly restored anyway). Thanks
371 to Gunther Reiszig <gunther@mit.edu> for reporting the bug.
372
373 4. Fixed restore to correctly access the archive file (-A argument)
374 even when using a remote tape. Thanks to Fabrice Bellet
375 <fabrice@bellet.info> for reporting the bug.
376
377 5. Fixed (again) handling of long (largefile) seeks in rmt.
378 Thanks to Fabrice Bellet <fabrice@bellet.info> for reporting
379 the bug.
380
381 6. Fixed restore corner case when dealing with large block sizes
382 dump is able to write now (-b 1024). Thanks to Fabrice Bellet
383 <fabrice@bellet.info> for reporting the bug.
384
385 7. Fixed a bug preventing dump to access a filesystem having
386 a label exactly 16 bytes in length. Thanks to <minduni@ti-edu.ch>
387 for reporting the bug.
388
389 8. Made dump store dump dates using explicit timezones, fixing a
390 problem with incremental dumps if the timezone is modified
391 between the dumps. Thanks to Philippe Troin <phil@fifi.org> for
392 the bug report and the patch.
393
394 9. Fixed a bug encountered when dumping individual files (not full
395 filesystems or directories) and dangling symbolic links happen
396 to be in the list of files. For as far as dump is concerned,
397 dangling symbolic links are allowed, and are dumped as is.
398 Thanks to Jin-su Ahn <jsahn@ee.snu.ac.kr> for reporting the
399 bug and providing the fix.
400
401 10. Fixed open and creation modes and permissions for QFA and
402 table-of-contents files in dump and restore. Thanks to
403 Philippe Troin <phil@fifi.org> for the patch.
404
405 11. Fixed the archive file descriptor handling enabling it to be 0.
406 This can happen in some cases when shell redirections are used.
407 Thanks to Philippe Troin <phil@fifi.org> for the patch.
408
409 12. Delayed the opening of archive file until after suid had been
410 dropped (fixing a possible security issue if dump is suid).
411 Thanks to Philippe Troin <phil@fifi.org> for the patch.
412
413 13. Fixed the 'S' command handling in the rmt client part.
414 Thanks to Philippe Troin <phil@fifi.org> for the patch.
415
416 14. Modified the end-of-tape script handling to print out statistics
417 (and stop the timer) before launching the eot script. Also, the eot
418 script does not get run anymore when using -M (which makes sense) or
419 when multiple tapes are listed on the command line
420 (-f tape0,tape1,tapen) (which also makes sense).
421 Thanks to Philippe Troin <phil@fifi.org> for the patch.
422
423 15. Relicensed dump/restore under the 'revised' BSD license, as per
424 ftp://ftp.cs.berkeley.edu/ucb/4bsd/README.Impt.License.Change.
425
426 16. Added LZO compression to dump. This new compression method has
427 the advantage of being super fast, thus not killing tape streaming
428 on slow machines. Thanks to Helmut Jarausch
429 <jarausch@igpm.rwth-aachen.de> for the patch and to
430 Markus Oberhumer <markus@oberhumer.com> for giving special permission
431 to include his miniLZO project (GPL licensed) in dump/restore.
432
433 17. Some small buffer overruns fixes in rmt. Thanks to Antonomasia
434 <ant@notatla.demon.co.uk> for reporting the bugs.
435
436 18. Added a special rmt version which can do encryption when writing
437 to tape. Read examples/encrypted_rmt/README for details on
438 how to enable and configure it. Thanks to Ken Lalonde
439 <ken@globalremit.com> for the patch.
440
441 19. Made dump work with 2.5 kernel end of tape early warning semantics.
442 Thanks to Kai Makisara <Kai.Makisara@kolumbus.fi> for the patch.
443
444 20. Fixed a bug which caused dump -w|-W not to work anymore, because
445 the fs_freq and fs_passno fields in /etc/mtab are always set
446 to 0 0. Thanks to Trent Piepho <xyzzy@speakeasy.org> for
447 reporting the bug.
448
449 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
450 =======================================================================
451
452 1. Added a note in the restore man page clarifying the question
453 'set the permissions on the current directory ?' asked by
454 restore at the end of treatment in -i and -x modes.
455
456 2. Fixed the endianess issues when reading compressed tapes.
457 Thanks to Dark Force <daq4th@users.sourceforge.net> for
458 reporting this bug and providing test cases.
459
460 3. Fixed the "ACL won't be dumped" warning message (which showed
461 an extra, unrelated error message). Thanks to Dragan Krnic
462 <dkrnic@lycos.com> for reporting this bug.
463
464 4. Made dump look first into /etc/mtab, then into /etc/fstab
465 when searching for filesystem paths. Also fixed some problems
466 caused by binding mounts or multiple block device mounts.
467 Thanks to Matus Uhlar <uhlar@fantomas.sk>, Elliott Mitchell
468 <ehem@m5p.com>, Greg Edwards <gedwards@users.sourceforge.net>,
469 Brian Hoy <brian.hoy@opus.co.nz>. (fixes Debian bugs #147086
470 and #160305, Sourceforge bugs #618699 and #679832).
471
472 5. Made dump's -I option accept the value '0' meaning all the
473 read errors will be ignored. This can be useful when running
474 dump from unattended sessions (like cron jobs). Thanks to
475 John I Wang <jiwang@users.sourceforge.net> for the suggestion.
476
477 6. Fixed the output of dump to indicate 'blocks' instead of
478 'tape blocks' in the various messages (blocks are always
479 1 Kilobyte, tape blocks are 1 BK * '-b' argument), and
480 made it clearly print the current blocksize at the start of
481 a dump. Thanks to Michal Szymanski <msz@astrouw.edu.pl> for
482 the suggestions.
483
484 7. Made rmt understand long (largefiles) seeks.
485
486 8. Fixed build with very old versions of libext2fs, where
487 EXT2_FT_* constants were undefined.
488
489 9. Made dump accept the dumpdates path on the command line
490 (-D file option) instead of using only the hardcoded one.
491 Thanks to Piete Brooks <pb22@users.sourceforge.net> for the
492 suggestion.
493
494 10. Enabled rmt, LFS, readline, QFA options by default in
495 ./configure. Updated the configure process (new versions
496 of config.guess, config.sub etc).
497
498 Changes between versions 0.4b31 and 0.4b32 (released November 15, 2002)
499 =======================================================================
500
501 1. Changed dump to use fcntl(F_SETLK) style locking instead
502 of flock() when locking the dumpdates file. With the old
503 locking scheme, a local user having read rights on the
504 dumpdates file could be able to do a Denial of Service attack
505 on dump. In order to lock the dumpdates file with the new
506 scheme, the user would need to have write access on the file.
507 Thanks to Richard Johnson <Richard.Johnson3@ey.com> for
508 reporting the bug (originally a bugtraq post).
509
510 2. Fixed interactive 'ls' which caused spurious errors warnings
511 about 'undefined filetypes' detected. Thanks to Jorgen Ostling
512 <jorgen_ostling@users.sourceforge.net> for reporting this
513 bug.
514
515 3. Fixed dump's estimate when dealing with sparse inodes.
516
517 4. Modified dump to allow setting a blocksize bigger than 32kB
518 (raised the limit to 1024kB), because newer hardware needs
519 this for proper operation. Thanks to Dirk Traenapp
520 <dtraenapp@users.sourceforge.net> for reporting this.
521
522 5. Fixed a bug causing Dump to stop and report an error if an
523 inode number in the exclude file was followed by some amount
524 of whitespace. Thanks to Jeffrey Sofferin
525 <sofferin@users.sourceforge.net> for reporting this bug.
526
527 6. Fixed a bug which caused restore, in some particular cases,
528 to ask some 'scary' questions and leave a bunch of RSTTMP
529 directories behind when restoring incremental tapes. Thanks
530 to Philippe Troin <phil@fifi.org> for reporting this bug and
531 providing the test cases.
532
533 7. Changed the wording when inodes are excluded from dump:
534 replaced 'Added inode 7 to exclude list' with
535 'Excluding inode 7 (resize inode) from dump', as suggested
536 by Elliott Mitchell <ehem@m5p.com> in a Debian bug report.
537
538 Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002)
539 ===================================================================
540
541 1. Fixed rmt open flags transmission (GNU's symbolic syntax over
542 rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi
543 <eros@lamel.bo.cnr.it> for reporting the bug.
544
545 Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002)
546 ===================================================================
547
548 1. Made dump print out the ext2 logical block number in case of a read
549 error, which can be given as an argument to debugfs' ncheck command,
550 in order to find out the affected inode. Added note about this
551 usage in dump's man page.
552
553 2. Fixed a problem in restore when reading tapes written on big
554 endian machines with very old versions of dump. The patch was
555 contributed by George Helffrich <george@geology.bristol.ac.uk>.
556
557 3. Fixed the tape length calculation when using large tapes
558 and compression. Thanks to Georg Lippold
559 <g_lippold@sourceforge.net> for reporting the bug.
560
561 4. Added a new set of examples in dump_on_cd_2 directory, based
562 on dump_on_cd examples but somewhat enhanced, supporting DVD
563 media, and localized in english and german. Thanks to
564 Georg Lippold <g_lippold@sourceforge.net> for the new scripts.
565
566 5. Made dump save 32 bit UID/GID. Internally, this was achieved
567 by switching from the old BSD inode format to the new BSD
568 inode format, which means that the tape format was changed.
569 However, since all restore versions out there should
570 transparently support both inode formats, the change should
571 have no side effects. Thanks to John Yu <jky@cs.bu.edu> for
572 reporting the bug.
573
574 6. Fixed a lot of warnings in the code shown when compiling
575 with 'gcc -W'. Thanks to Matthias Andree
576 <matthias.andree@stud.uni-dortmund.de> for reporting this.
577
578 7. Fixed a small markup bug in the dump man page. Thanks to
579 Eric S. Raymond <esr@minx.thyrsus.com> for submitting the
580 patch.
581
582 8. Rewrote entirely the man pages using the tmac.an macro
583 package (Linux man page format) instead of the original BSD
584 format. They should be now cleaner and easier to modify.
585
586 Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002)
587 ==================================================================
588
589 1. Fixed a problem in the rmt ioctl command, where ioctl's issued from
590 non Linux clients were misinterpreted. The description of the problem
591 (incompatible numbering in Linux mtio opcodes) is documented at
592 ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to
593 Jörg Schilling <schilling@fokus.gmd.de> for reporting this bug and
594 providing an excellent, cross-platform replacement for rmt in his
595 star package.
596
597 2. Fixed a bug reported by Andy Mentges <amentges@jumpline.com>
598 which caused restore to fail when the inode maps were not entirely
599 contained on the first volume (when using really small volumes or
600 when dumping a huge number of inodes).
601
602 3. Fixed a problem in dump, where files in subdirectories of directories
603 that have the nodump flag set (or being excluded with -e/-E) were
604 sometimes incorrectly dumped (instead of being excluded). The original
605 fix is from David C Lawrence <tale@dd.org> in the FreeBSD version
606 of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414
607 Thanks to Ted Grzesik <tedgyz@roostme.com> for reporting the bug and
608 help testing the patch.
609
610 4. Added some example scripts from Gerd Bavendiek <bav@epost.de>
611 which makes one able to pipe the output of dump, by the net, to
612 a remote CD-burner server.
613
614 5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt),
615 and use GNU's symbolic syntax over rmt instead of numerical values
616 to assure multiple platform compatibility.
617
618 6. Documented the -d option in restore.
619
620 7. Added a -v (verbose) mode to dump. For now it just prints the number
621 of the inode being dumped, but this could evolve in future versions
622 to include interesting debugging output.
623
624 8. Added a -o flag to restore, which automatically restores the current
625 directory permissions in -i or -x mode, without asking the operator
626 whether to do so. Patch submitted by Tony Clayton <tonyc@e-smith.com>
627 and Peter Samuel <peters@e-smith.com>.
628
629 Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002)
630 ====================================================================
631
632 1. Fixed a bug in the QFA feature which could have caused
633 a bad tape positionning on restore (causing extra delays in
634 restore). Credits go to Uwe Gohlke <uwe@ugsoft.de>.
635
636 2. Added a small note in the dump man page specifying that
637 there should be no white space between the option letter and
638 the -j or -z parameter, thanks to Kenneth Porter <shiva@well.com>
639
640 3. Made restore work with older versions of the readline library,
641 by checking in configure for several extended symbols. Restore
642 can now be compiled with a readline as old as the 2.0 release
643 (though it may be a good idea to upgrade it to a more recent
644 version...). Thanks to Andrew Donkin <ard@waikato.ac.nz> for
645 reporting the build failures.
646
647 4. Fixed a performance problem with the QFA file creation in
648 dump, which made unnecessary seeks on the tape slowing down
649 the dump. Thanks to Andrew Donkin <ard@waikato.ac.nz> for
650 reporting this issue.
651
652 5. Removed the inclusion of some kernel headers in the dump
653 source, which prevented the compile in some kernel/glibc
654 headers/architecture combination. Thanks to Bdale Garbee
655 <bdale@gag.com> for reporting the bug.
656
657 6. Added the appropriate error message when dump fails to
658 open the output file for writing. Thanks to Amith Varghese
659 <amithv@yahoo.com> for reporting this bug.
660
661 7. Made restore able to understand large Solaris ufsdump tapes
662 (containing inodes bigger than 4194304). Sun have introduced
663 an "extension" to the dump tape format when dealing with
664 those inodes, which was uncorrectly handled by Linux restore.
665 Thanks to Uwe Gohlke <uwe@ugsoft.de> for reporting the bug and
666 providing a test case.
667
668 8. Added the -m parameter to dump which optimises the output for
669 inodes having been changed but not modified since the last dump
670 ('changed' and 'modified' have the meaning defined in stat(2)).
671 For those inodes, dump will save only the metadata, instead of
672 saving the entire inode contents. Inodes which are either
673 directories or have been modified since the last dump are saved
674 in a regular way. Uses of this flag must be consistent, meaning
675 that either every dump in an incremental dump set have the flag,
676 or no one has it.
677
678 Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002)
679 =======================================================================
680
681 1. Fixed behaviour of dump when exceeding resource limits
682 (SIGXFSZ treatment).
683
684 2. Added the -L flag to restore to allow the user to specify a
685 maximal allowed number of miscompares when using restore
686 with the -C option to check the backup.
687
688 3. Detailed the manual entry for the -N option of restore.
689
690 4. Added the -a flag to restore to make able doing unattended
691 restores in -i or -x mode (automatically walks through the
692 multiple dump volumes).
693
694 5. Extended the QFA mode to work with local files and/or
695 remote tapes and files. This way, restore can know in advance
696 the tape number and the offset for the inodes to extract and
697 can minimize the extraction time by seeking directly to the
698 good tape/offset.
699
700 6. Added the -A <archive> option to both dump and restore,
701 which makes dump to archive a dump table-of-contents in
702 the specified file to be used by restore to determine
703 whether a file is in the dump file that is being restored.
704 (the archive file syntax is also compatible with the
705 Solaris ufsdump generated one).
706
707 7. Small fix in restore making it able to read some (broken ?)
708 Solaris ufsdump tapes.
709
710 8. Fixed dump to correctly recognise the root filesystem when using
711 ext2 disk labels (LABEL=/). Thanks to John Yu <jky@it.bu.edu>
712 for reporting this bug.
713
714 9. Added the -P <file> option to restore to create a
715 Quick File Access file from an already made dump. Patch
716 contributed by Uwe Gohlke <uwe@ugsoft.de>.
717
718 10. Made restore compile and run on Solaris, making it a
719 possible replacement for the standard ufsrestore. Port was
720 contributed by Uwe Gohlke <uwe@ugsoft.de>.
721
722 Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002)
723 =====================================================================
724
725 1. Added a set of backup scripts from Eugenio Diaz
726 <getnito@yahoo.com> in the examples section. It features
727 automatic (cron based) full and incremental dumping of
728 several filesystems on a separate filesystem.
729
730 2. Fixed a off-by-one miscalculation which disabled dumping
731 a one letter subdirectory. Thanks to Chris Siebenmann
732 <cks@utcc.utoronto.ca> for reporting the bug.
733
734 3. Fixed several restore bugs occuring when trying to
735 restore some missing files on the tape. Thanks to Chris
736 Siebenmann <cks@utcc.utoronto.ca> for reporting the bug.
737
738 4. Fixed --with-ldopts configure argument passing, installing from
739 a separate object directory, makefile cleanups contributed
740 by <splite@purdue.edu>.
741
742 5. Fix a bug which could caused, in some conditions, the highest
743 number inode of a filesystem, to not be dumped. Many thanks
744 to Chris Siebenmann <cks@utcc.utoronto.ca> for helping me
745 chase this bug.
746
747 Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001)
748 =======================================================================
749
750 1. Added a mini howto from Patrick Walsh in the examples
751 directory.
752
753 2. Minor man pages syntax corrections. Thanks to
754 Chris Danis <screechco@home.com> for reporting the bugs.
755
756 3. Added a script from David B. Peterson <dave@toppledwagon.com>
757 to the examples section. It features dumping several
758 filesystems to a remote tape drive upon ssh.
759
760 4. Added a patch provided by Richard Jones <rich@annexia.org>
761 which allows BRADEMAX (number of read errors tolerated by
762 dump) to be adjusted using the -I option.
763
764 5. Fixed a bug which disabled doing "restore -C -f -". Thanks
765 to Clemens Stiglechner <a9401816@unet.univie.ac.at> for the
766 patch.
767
768 6. Add the -l option to restore to specify if, when doing a
769 remote restore, the file used to access the backup is a
770 regular file (the defaults being a tape drive). Restore needs
771 to know this information when reading a remote compressed
772 dump. Previously, this information was autodetected, but
773 the autodetection code fails (with ioctl: Inappropriate ioctl
774 for device) when using a non Linux remote box. Thanks to
775 many users and especially to Eros Albertazzi
776 <eros@lamel.bo.cnr.it> for reporting this.
777
778 7. Found a workaroung for the dump deadlock problem (3 childs
779 stuck in pause(), father in read()). The workaround seems
780 to work for me and several beta-testers. If it doesn't work
781 for you, please report back.
782
783 8. Updated the RPM spec file (BuildPrereq, URL etc).
784
785 Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001)
786 ========================================================================
787
788 1. Fixed the permissions of a newly created QFA file by dump.
789
790 2. Cleaned up the source of dump (the external variables
791 definition was a complete mess, making possible to have
792 objects overlap).
793
794 3. Fixed restore to use the full tape volume path when doing
795 a compare (since it changes the working directory to the
796 filesystem being compared in the process).
797
798 4. Added the -q option to dump which makes dump abort
799 whenever it needs operator attention. It should be
800 easier to use dump in scripts with this option.
801
802 5. Detect the use of incompatible options to dump and
803 refuse them (like -a and -B options together).
804
805 6. Added bzip2 compression to dump/restore (use option -j level
806 to select it). Note that you will need a restore version
807 >= 0.4b24 in order to restore a bzip2 compressed dump.
808 The same warning as for the zlib compression applies:
809 the tape format of a bzip2 dump is not compatible with the
810 original BSD tape format.
811
812 7. Fixed a overflow problem in dump corrupting the dump when
813 very large files were encountered. Thanks to Vladimir Nadvornik
814 for the bug report.
815
816 8. Added a ioctl(BLKFLSBUF) in dump which should flush the
817 kernel buffer/page cache before starting the dump, helping
818 a bit those who use dump on mounted filesystems. Thanks to
819 John Yu <jky@it.bu.edu> and to Theodore T'so <tytso@mit.edu>
820 for this suggestion.
821
822 9. Updated the RPM spec file following the RedHat changes
823 (dynamically linked binaries now in /usr/sbin etc).
824
825 10. Added a patch from Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
826 which enables restore to recognise multi volume compressed dumps
827 done on CD. Included his scripts for dump (which pipe the dump
828 output directly into cdrecord) and restore. There is now
829 possible to to backups to CD on the fly!
830
831 Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001)
832 ===================================================================
833
834 1. Fixed a buffer overflow in restore/tape.c. Patch provided by
835 Marcus Meissner (Caldera International Security Dept.).
836
837 2. Implement the Sun rmt extended protocol. Patch submitted
838 by Ian Gordon <iangordon@users.sourceforge.net>.
839
840 3. Check for the e2fsprogs header <ext2fs/ext2_fs.h> instead of
841 the linux kernel header. This ensures that dump always has the
842 latest version of this file. Patch submitted by
843 Andreas Dilger <adilger@turbolinux.com>.
844
845 4. Report any filesystem present in either /etc/fstab with a
846 positive passno or /etc/dumpdates in dump -w output.
847 Patch submitted by Andreas Dilger <adilger@turbolinux.com>.
848
849 5. Fixed the looping problem in dump introduced in the
850 previous version.
851
852 6. Changed the -B option of dump to limit the size of
853 _compressed_ output per volume if compression is on.
854 Patch contributed by Helmut Jarausch
855 <jarausch@igpm.rwth-aachen.de>. Note however that, since
856 it is impossible to predict the size of the compressed
857 data before doing the compression, the -B limit is a bit
858 conservative.
859
860 7. Fixed a bug in reading the operator typed file/tape path for
861 the next volume in restore.
862
863 8. Implemented a "-F script" option to restore which permits the
864 user to specify a script which will be launched at the
865 beginning of each tape, useful for automatic programming of
866 tape changers for example. See the restore man page for the
867 script parameters and return codes.
868
869 9. Small fix for the QFA routines provided by Uwe Gohlke
870 <uwe@ugsoft.de>, and some recommendations for QFA uses in
871 the man pages.
872
873 10. Fixed the multivolume restoring where making a mistake
874 to the 'Mount next tape' prompt caused several blocks to
875 be lost.
876
877 11. Enhanced the -e option of dump to take as a parameter a
878 comma separated list of inode numbers.
879
880 12. Added the -E option to dump which specify a file containing
881 inode numbers to exclude from the dump.
882
883 13. Fixed the compressed multi-volume dump + restore.
884
885 Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001)
886 ==================================================================
887
888 1. Made dump report the number of blocks dumped per volume.
889 Thanks to Kenneth Porter <shiva@well.com> for the suggestion.
890
891 2. Fix a bug in dump where waiting too much at the 'change volumes'
892 question caused the volume to be rewritten. Thanks to
893 Graham Reed <greed@users.sourceforge.net> for reporting the
894 bug and providing a patch.
895
896 3. Added a compression option to dump, contributed by Jerry
897 Peters <gapeters@worldnet.att.net>.
898
899 WARNING: the compression works only on files/pipes and
900 drives supporting variable block size.
901
902 WARNING2: tapes created using the compression feature are
903 incompatible with the standard dump tape format, and a
904 version of restore >= 0.4b22 will be needed for extraction.
905
906 4. Fixed some compilation problems for glibc 2.2.2 and 64 bit
907 architectures. Thanks to Paul Slootman <paul@debian.org> for
908 the patch and to Bdale Garbee <bdale@gag.com> for forwarding
909 it upstream.
910
911 5. Many cleanups (CPP defines, const char warnings, check of
912 ext2fs COMPAT flags, time_t cleanups, added libext2 version
913 in dump usage text) by Andreas Dilger <adilger@turbolinux.com>.
914
915 6. Made --prefix option work in configure. All the install path
916 are now based on the configure parameters.
917
918 7. Added the Quick File Access mode in dump/restore, contributed
919 by Uwe Gohlke <uwe@ugsoft.de>. In this mode, dump stores in
920 a file tape position for each inode, and this file is used by
921 restore (if called with parameter Q and the filename)
922 to directly position the tape at the file restore is currently
923 working on. This saves hours when restoring single files from
924 large backups, saves the tapes and the drive's head. Use
925 --enable-qfa option of configure to compile in the QFA support.
926
927 8. Added the possibility to dump several files and directories
928 in a single invocation of dump. Thanks to Uwe Gohlke
929 <uwe@ugsoft.de> for implementing this option.
930
931 9. Fixed the dumping and restoring of files with holes
932 (files ending with holes didn't get dumped or restored
933 correctly).
934
935 10. Fixed a socket descriptor leak in dump, which leaved opened
936 3 file descriptors per dump process (and there is one dump
937 process per tape).
938
939 11. Fixed dump large file system support, by explicit use of
940 open64/lseek64/etc functions (explicit use needed because
941 e2fsprogs libraries don't behave well when compiled with
942 FILE_OFFSET_BITS=64).
943
944 Changes between versions 0.4b20 and 0.4b21 (released January 13, 2001)
945 ======================================================================
946
947 1. Fixed some bugs in the dump -w|-W logic introduced by
948 the previous version. Thanks to Andreas Dilger
949 <adilger@turbolinux.com> for his help on this one.
950
951 2. Fixed again a compilation problem when using old e2fs
952 headers (filesystem label related). Thanks to many users
953 who reported this stupid error.
954
955 3. Fixed a build problem on old lib5 based systems dealing with
956 _PATH_MNTTAB being undefined. Thanks to John Adams
957 <johna@onevista.com> for reporting the bug.
958
959 4. Improved the error detection in restore when creating
960 the temporary files in TMPDIR. Now restore will corectly
961 report a 'no space left on device' error instead of
962 strange errors which could imply an archive corruption.
963 Thanks to Gabriel Somlo <somlo@cs.colostate.edu> and
964 bgjenero <bgjenero@sympatico.ca> for reporting the bug.
965
966 5. Added the throughput information in dump's progression
967 messages. Thanks to Andreas Dilger <adilger@turbolinux.com>
968 for the patch.
969
970 6. Use libext2fs's inode scanning routines, which are particularly
971 robust when dealing with errors (especially when having some
972 bad blocks on the filesystem). Many thanks to Colin
973 <colin@horizon.com> for reporting the bug, investigating
974 the issues, finding a workaround, writing the patch and
975 fully testing it... (of course, if this patch will break
976 anything, he is to blame for :-)).
977
978 7. Made dump and restore LFS aware. Dump can dump a filesystem
979 containing large files, generate a large file on output and
980 restore can restore them. This feature is not enabled by
981 default, use --enable-largefile option of configure to enable
982 it (you need to have a LFS aware glibc though). Thanks to
983 Andrea Arcangeli <andrea@suse.de> for submitting the patch,
984 and to Theodore T'so <tytso@valinux.com> for his always
985 useful thoughts.
986
987 8. Made dump ask upon a tape write error if it should rewrite
988 the current volume (assume this is a bad tape) or if it should
989 assume an end-of-tape condition (useful for tape drives which
990 behaves badly at the end of the tape). Thanks to Andreas
991 Dilger <adilger@turbolinux.com> for the suggestion.
992
993 Changes between versions 0.4b19 and 0.4b20 (released November 10, 2000)
994 =======================================================================
995
996 1. Fixed a small compilation problem due to a change
997 in the definintion of the struct sigaction in
998 glibc 2.0 / libc5. Thanks to Gunther Schlegel
999 <schlegel@riege.de> for reporting the bug and to
1000 Dave Platt <dplatt@snulbug.mtview.ca.us> for suggesting
1001 a fix.
1002
1003 2. Modified the label and uuid analysis in order to be
1004 self-contained (independant of kernel/libc headers). This
1005 should fix the compile with older kernel/libc headers and
1006 will preserve the functionality. Thanks to Bernhard Erdmann
1007 <bernhard.erdmann@gmx.de> for reporting the bug.
1008
1009 3. The 'exclude inode' option, if applied to a directory
1010 inode, excludes now correctly all the leaves of this
1011 directory. Thanks to John R. Dennison
1012 <gerdesas@users.sourceforge.net> for reporting the bug.
1013
1014 4. Fixed the '-e' option to disable the possibility
1015 to exclude the root inode (which causes the dumps to
1016 be unreadable by restore). Prevented array overflow
1017 when multiple -e options are used.
1018
1019 5. Fixed dump to correctly interpret a filesystem argument
1020 which is a mountpoint and it is not an absolute path
1021 (as specified in the fstab). Thanks to Bernhard R. Erdmann
1022 <be@berdmann.de> for reporting the bug.
1023
1024 6. Made dump able to backup files larger than 2 GB. Note that
1025 dump still doesn't cope with files larger than 4 GB.
1026
1027 7. Restore the real uid and gid before invoking an external
1028 RSH program (big hole when dump or restore is suid root!).
1029
1030 8. Get the values for the default tape device and the location
1031 of fstab file from the system headers. Thanks to
1032 Andreas Dilger <adilger@turbolinux.com> for the patch.
1033
1034 9. Made dump -w|-W report all recognized filesystems
1035 present in either /etc/fstab or /etc/dumpdates, and present
1036 the list in the same order as in fstab file. Thanks
1037 to Andreas Dilger <adilger@turbolinux.com> for the patch.
1038
1039 10. Made dump's -a (automatic end of tape detection) the
1040 default. Specifying one of -B, -c, -d or -s options will
1041 override the EOM detection. Thanks to Andreas Dilger
1042 <adilger@turbolinux.com> for the patch.
1043
1044 11. Save the ext2 filesystem label into the dump volume label.
1045 Specifying a volume label on the command line (-L option)
1046 will override this feature. Thanks to Andreas Dilger
1047 <adilger@turbolinux.com> for the patch.
1048
1049 Changes between versions 0.4b18 and 0.4b19 (released August 20, 2000)
1050 =====================================================================
1051
1052 1. Fixed the signal handling in dump (which I broke in 0.4b17)
1053 which was causing several strange dump failures (dump
1054 hanged or segmentation faults etc).
1055
1056 2. Specified the default blocksize in the dump man page.
1057
1058 3. Changed two info messages of restore to be written on stdout
1059 instead of stderr in order to leave stderr only for errors
1060 or warnings. Thanks to Stephen Atwell
1061 <satwell@urbana.css.mot.com> for the suggestion.
1062
1063 4. Corrected an off by one calculation which prevented
1064 dumping a directory having a 1 character name length.
1065 Thanks to Bernhard Erdmann <bernhard.erdmann@gmx.de>
1066 for reporting the bug.
1067
1068 5. Reinforce dump in order to allow only level 0 and no
1069 -u option when dumping a subdirectory, and document
1070 this in the man page. Thanks to Bernhard Erdmann
1071 <bernhard.erdmann@gmx.de> for reporting the bug.
1072
1073 6. Fixed a small harmless bug in restore which caused
1074 in some conditions hard links to be restored several
1075 times (therefore generation some warning messages).
1076 Thanks to Kenneth Porter <shiva@well.com> for
1077 reporting the bug.
1078
1079 7. Updated the RPM spec file to the latest RedHat version,
1080 providing FHS packaging and other cosmetic changes.
1081 You will need RPM version >= 3.0.5 in order to build the RPM.
1082
1083 8. Updated the configure script to check for libtermcap
1084 before checking for libreadline, because we need this
1085 library in order to compile the readline support.
1086
1087 9. Made dump understand the LABEL= and UUID= notation
1088 both in /etc/fstab and on the command line. Note that
1089 you will need the /proc filesystem in order to use
1090 these notations. Thanks to Erik Troan <ewt@redhat.com>
1091 for providing the patch.
1092
1093 Changes between versions 0.4b17 and 0.4b18 (released June 30, 2000)
1094 ===================================================================
1095
1096 1. Fixed a potential buffer overflow in restore. Thanks
1097 to Stan Bubrouski <satan@fastdial.net> for reporting
1098 the bug.
1099
1100 2. Fixed a readline-related bug which prevented
1101 'cat DUMPFILE | restore -i -f -' from working. Thanks
1102 to Charles Karney <karney@users.sourceforge.net>
1103 for the bug report.
1104
1105 3. Changed a few "panic" into "exit", causing restore to
1106 be more stable against some attacks (like the last one
1107 reported on Bugtraq, although the last version of restore
1108 was not vulnerable - just dumped core). Thanks to
1109 Andreas Hasenack <andreas@conectiva.com.br> for reporting
1110 the bugs to me.
1111
1112 4. Removed the suid-root bit on dump and restore in the
1113 default build (and generated RPMs). It should be safer
1114 now. Users who need the suid-root capabilities in order
1115 to make network backups should read first the man page
1116 of dump and enable the suid bit manually.
1117
1118 5. Added -ltermcap to the compile parameters for restore
1119 when using readline support, in order to make the compile
1120 process work on some systems (SuSE ?). Thanks to
1121 Patrik Schindler <poc@pocnet.net> for reporting the bug.
1122
1123 Changes between versions 0.4b16 and 0.4b17 (released June 1st, 2000)
1124 ====================================================================
1125
1126 1. The -F script is called now *only* at the end of a tape,
1127 not at the end of the dump. Thanks to Christian Haul
1128 <haul@informatik.tu-darmstadt.de> for the bug report.
1129
1130 Normally, the device name and the current volume number
1131 are passed on the command line of the script. However,
1132 if you want the old style script (with no arguments
1133 passed on the command line), you can enable it in
1134 configure with the --enable-oldstylefscript.
1135
1136 2. Use posix signal handling to preserve dump functionality
1137 with libc5. Thanks to Jeff Johnson <jbj@redhat.com> for
1138 the patch.
1139
1140 3. Made the exit code of restore in case of a 'C'ompare
1141 command reflect the result of the compare. An exit status
1142 of 0 means the dump archive is correct, 1 means tape errors,
1143 2 means that some files were modified. Thanks to Kenneth Porter
1144 <shiva@well.com> for the suggestion.
1145
1146 4. Made (finally) quotes work in interactive restore.
1147
1148 5. Small fixes in order to allow dump to compile with a
1149 really old e2fsprogs version. Thanks to Ian Zimmerman
1150 <itz@speakeasy.org> for the bug report.
1151
1152 6. Add GNU readline capabilities to interactive restore.
1153 Use configure's --enable-readline flag to enable this feature.
1154 Thanks to Patrik Schindler <poc@pocnet.net> for the
1155 suggestion.
1156
1157 7. Do the compare on the fly in restore 'C' mode (this will
1158 allow not to exhaust the available /tmp space when
1159 ccmparing large files). Thanks to Kenneth Porter
1160 <shiva@well.com> for the suggestion.
1161
1162 Changes between versions 0.4b15 and 0.4b16 (released March 11, 2000)
1163 ====================================================================
1164
1165 1. Fixed some several duplicate 'DUMP: DUMP:' in the
1166 output of dump.
1167
1168 2. Corrected the estimation of blocks to dump. Note that
1169 this is still wrong for large directory inodes, due
1170 to the size of a BSD directory entry on the tape
1171 (estimation is based on the size of the ext2 directory,
1172 which is smaller because it doesn't contain the null
1173 character at the end).
1174
1175 3. Made dump report the total number of MB written to
1176 tape at the end of run. Thanks to W. Reilly Cooley
1177 <wcooley@nakedape.cc> for the patch.
1178
1179 4. Added the -X option to restore giving the possibility
1180 to read the names of the files to be extracted/listed
1181 from a text file (in addition of the command line).
1182 Thanks to Dejan Muhamedagic <dejan@quant-x.com> for the
1183 patch.
1184
1185 5. Added the device name and the current volume number
1186 as arguments to the end of tape script (dump -F option).
1187
1188 6. Made the multi-volume dump work again (after having
1189 broken it in 0.4b15).
1190
1191 Changes between versions 0.4b14 and 0.4b15 (released March 2, 2000)
1192 ===================================================================
1193
1194 1. Added a prompt command in interactive restore mode. Thanks
1195 to Andreas Dilger <adilger@home.com> for the patch.
1196
1197 2. Fixed a buffer overflow problem in dump (caused by
1198 not checking the size of the filesystem parameter).
1199 Thanks to Kim Yong-jun <loveyou@hackerslab.org> for
1200 reporting this on Bugtraq (and to several dump users
1201 who forwarded me his mail).
1202
1203 3. Added the '-F script' option to dump in order to
1204 launch a script at the end of each tape (to be used
1205 with a tape changer, or to notify the sysadmin by
1206 pager etc.).
1207
1208 4. Fixed a bug in restore compare code caused by the changes
1209 I made in 0.4b14.
1210
1211 5. Fixed the treatment of options using the old BSD syntax
1212 in both dump and restore.
1213
1214 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
1215 =======================================================================
1216
1217 1. Fixed a bug in dump which may have caused invalid deleted
1218 directories to be dumped out if they were deleted after the
1219 mapping pass. This could occure on active filesystem and lead
1220 to heap corruption (causing dump malfunction in many possible ways).
1221 Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
1222 bug and submitting the patch.
1223
1224 2. Fixed the handling of the filesystem parameter in dump. A
1225 '/mnt/disk' parameter caused the disk contents to be dumped,
1226 but a '/mnt/disk/' parameter caused the mountpoint directory
1227 to be dumped (generally an empty directory).
1228
1229 3. Improved the output of dump in order to tell which directory
1230 it is currently dumping (when dumping a subtree).
1231
1232 4. Added the '-e' exclude inode option to dump. Thanks to
1233 Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
1234
1235 5. Added a REPORTING-BUGS file in order to provide a guide
1236 on how to correctly report a bug in dump/restore.
1237
1238 6. Fixed a restore problem when restoring a hard link to an inode
1239 having the immutable or append-only attribute set. Thanks to
1240 Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
1241
1242 7. Fixed a compatibility problem between dumps made on little
1243 endian machines (the format was correct) and big endian
1244 machines (the format was incorrect). This fix break the
1245 compatibility with the older dumps made on big endian
1246 machines (sparc, m86k, ppc etc). For the first time in
1247 linux dump's history (I believe), the dumps made by *BSD,
1248 Linux/alpha, Linux/sparc and Linux/x86 are compatible,
1249 so interchangeable. Thanks to Rob Cermak
1250 <cermak@ahab.rutgers.edu> for submitting the bug and
1251 helping me test the fix.
1252
1253 8. Fixed the way dump reports the remaining percent/time, if
1254 the number of blocks actually dumped exceeds the estimated
1255 number of blocks. Thanks to Jean-Paul van der Jagt
1256 <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
1257
1258 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
1259 ======================================================================
1260
1261 1. Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
1262 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
1263
1264 2. Removed the requirement to build the RPM as root from the
1265 spec file. Thanks to Christian Weisgerber
1266 <naddy@mips.rhein-neckar.de> for submitting this.
1267
1268 3. Fixed a bug in dump related to the 'filetype' feature of ext2fs,
1269 causing dump to block when dumping really huge filesystems.
1270 Many thanks to Patrik Schindler <poc@pocnet.net> for
1271 helping me find this bug.
1272
1273 4. Fixed the treatment for an interrupt signal when dump access
1274 the remote tape through RSH. Thanks to Christian Weisgerber
1275 <naddy@mips.rhein-neckar.de> for providing the patch.
1276
1277 5. Fixed a bug which was causing dump/restore to display
1278 garbage characters instead of the remote host name.
1279
1280 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
1281 =====================================================================
1282
1283 1. Small fix in the dump man page. Thanks to Thorsten Kukuk
1284 <kukuk@suse.de> for submitting the patch.
1285
1286 2. Fix for the exit code when using the size estimate option of
1287 dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
1288 submitting the patch.
1289
1290 3. Handle EINTR in atomical reads/writes in dump, which was causing
1291 dump to fail on some systems. Thanks to Eric Jergensen
1292 <eric@dvns.com> for reporting the bug and submitting the patch.
1293
1294 4. Handle more than 16 characters for the device names in dumpdates.
1295 (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
1296 tracking down the problem and proposing the solution.
1297
1298 5. Fixed a bug in dump which prevented the creation of the
1299 dumpdates file when doing a 0-level dump without already
1300 having a dumpdates file. Thanks to Patrik Schindler
1301 <poc@pocnet.net> for reporting the bug.
1302
1303 6. Changed the way dump 'S' flag reports the size estimate
1304 from number of blocks into bytes (making it compatible
1305 with the Solaris version, and simplifying things for
1306 amanda users). Thanks to Jason L Tibbitts III
1307 <tibbs@math.uh.edu> for reporting the bug.
1308
1309 7. Fixed a compatibility problem in linux/alpha dump tape format.
1310 Now the linux/alpha dump are (again) compatible with the
1311 other dump formats. But this breaks compatibility with
1312 older dumps made on alpha. Thanks to Mike Tibor
1313 <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
1314
1315 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
1316 ======================================================================
1317
1318 1. Added a '--enable-kerberos' to configure.
1319
1320 2. Added a 'S' option to dump which determines the amount of space
1321 that is needed to perform the dump without actually doing it, similar
1322 to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
1323 <cermak@ahab.rutgers.edu>.
1324
1325 3. Added a 'M' multi-volume option to dump and restore which enables
1326 dumping to multiple files (useful when dumping to an ext2
1327 partition to make several dump files in order to bypass the 2GB
1328 file size limitation). The 'f' argument is treated as a prefix and
1329 the output files will be named <prefix>001, <prefix>002 etc. With
1330 the 'M' flag, restore automatically selects the right file without
1331 asking to enter a new tape each time.
1332
1333 4. Fixed a memory leak which was causing dump to grow very big
1334 (270MB when dumping a 10GB filesystem...). Thanks to Jason
1335 Fearon <jasonf@netrider.org.au> for reporting the bug.
1336
1337 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
1338 ======================================================================
1339
1340 1. Make configure test if the system glob routines support
1341 extended syntax (ALTDIRFUNC). If not, use the internal glob
1342 routines instead of system ones. Thanks to Bernhard Sadlowski
1343 <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
1344 and helping me resolve this and other minor libc5 compiling
1345 glitches.
1346
1347 2. Fix a problem when dumping a ext2fs with the 'filetype'
1348 feature enabled. Thanks to Patrick J. LoPresti
1349 <patl@cag.lcs.mit.edu> for reporting the bug and to
1350 Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
1351
1352 3. Made the nodump flag work on directories. A directory which
1353 has the nodump flag gets never dumped, regardless of its
1354 contents.
1355
1356 4. Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
1357 which allows dump on an active ext3 filesystem. However, this
1358 is a "quick and dirty" patch which enables backup of an ext3
1359 filesystem through the ext2 compatibility (by ignoring the
1360 NEEDS_RECOVERY bit). The journal file is not recognized and
1361 it is dumped (it should not).
1362
1363 5. Test the superblock compatibility flags when dumping, in order
1364 to be sure that we know how to deal with specific features.
1365
1366 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
1367 ====================================================================
1368
1369 1. Use lchown instead of chown, fixing a possible security problem
1370 when restoring symlinks (a malicious user could use this
1371 to deliberately corrupt the ownership of important system files).
1372 Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
1373 this and providing the patch.
1374
1375 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
1376 ====================================================================
1377
1378 1. Put dump sources under CVS, added Id tags in all files so
1379 one can use 'ident' on binary files.
1380
1381 2. Added the dump/restore version in the usage text so one can
1382 easily verify the version he is using.
1383
1384 3. Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
1385 a va_start/va_end problem on linux-ppc (always call va_start
1386 va_end in pairs each time we use a vararg function).
1387
1388 4. Added again the DT_* constants because old libc does not
1389 contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
1390 for submitting the bug report.
1391
1392 5. Use ext2fs_llseek instead of llseek. With recent e2fsprogs
1393 this should enable dumping big (huge) filesystems.
1394
1395 6. Added the RSH environment variable in order to be able to
1396 use a rsh replacement like ssh when doing remote backups (and
1397 bypass the security limitations of rcmd). Now you can do remote
1398 backups without being root (or making dump setuid root).
1399
1400 7. Modified again the way dumpdates works. For incremental dumps,
1401 we need to read dumpdates even if we are not using 'u' option.
1402 Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
1403 this should work.
1404
1405 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
1406 ===================================================================
1407
1408 1. Removed the 'k' flag from the restore 'about' text if kerberos
1409 was not compiled in.
1410
1411 2. Prototyped (f)setflags from e2fsprogs and corrected the calls
1412 to them (fsetflags takes a char*, setflags an open fd!).
1413
1414 3. (f)setflags is called only if the flags aren't empty. If the
1415 file is a special file, a warning is printed, because changing
1416 flags implies opening the device. Normally, a special file
1417 should not have any flag... (Debian bug #29775, patch provided
1418 by Abhijit Dasgupta <abhijit@ans.net>).
1419
1420 4. Made possible to dump a file system not mentioned in /etc/fstab.
1421 (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
1422
1423 5. Changed the default behaviour to not create dumpdates
1424 unless 'u' option is specified. Removed the old "debian-patch"
1425 which provided the same thing. (Debian bug #38136, #33818).
1426
1427 6. Removed all those dump*announce, since they were getting old...
1428
1429 7. Added warning messages if dumpdates does not exist and
1430 when an inferior level dump does not exist (except for a level 0
1431 dump).
1432
1433 8. Debugged the glob calls in interactive mode: restore used a
1434 dirent struct which was different from the /usr/include/dirent.h
1435 one (this used to work, is it a glibc2 change?), so none of the
1436 compat glob (which used /usr/include/dirent.h) or the system glob
1437 worked. Restore use now the system dirent (and the system
1438 DT_* constants), which are compatible with BSD ones.
1439
1440 9. Added a configure flag (--with-dumpdatespath) to specify
1441 the location of dumpdates file. By default, it is
1442 /etc/dumpdates.
1443
1444 10. Added the "AUTHOR" and "AVAILABILITY" sections and
1445 included the current date/version in man pages.
1446
1447 11. Corrected the estimation of remaining time when
1448 the operator doesn't change the tapes quickly enough. This
1449 was an old bug, I thought I corrected it, and discovered
1450 that in fact it was corrected in two different places, so
1451 the results canceled each other...
1452
1453 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
1454 ===================================================================
1455
1456 1. Integrated multiple patches from RedHat, Debian and SuSE:
1457
1458 - tweak dump/itime.c to not try to read dumpdates if the 'u' option
1459 isn't specified.
1460 - several fixes in the man pages.
1461 - update the default tape device to /dev/st0.
1462 - many updates for Linux Alpha (byte ordering, size_t etc).
1463 - buffer overruns.
1464 - use environment variable for TMPDIR (instead of /tmp).
1465 - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
1466 - workaround egcs bug (RedHat bugs #4281 and #2989).
1467 - wire $(OPT) throughout Makefile's.
1468
1469 2. Upgrade the dump revision to 1, making possible to dump filesystems
1470 made with e2fsprogs-1.15 or newer. Nothing seems to break...
1471
1472 3. Fix some compile warnings, prototype all functions.
1473
1474 4. Use glibc err/glob instead of internal compatibility
1475 routines (only if available).
1476
1477 5. Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
1478 by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
1479
1480 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
1481 ======================================================================
1482
1483 1. Integrated the changes from FreeBSD-3.1-RELEASE
1484 (mostly bug fixes, buffer overruns, dump has now an "automatic
1485 tape length calculation" flag, dump/restore can use kerberos now
1486 (this is NOT tested), use environment variables for TAPE and
1487 RMT etc.).
1488
1489 2. Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
1490
1491 3. Corrected a bug in restore when using 'C' option with multi-volumes
1492 tapes (files splited accros two tapes give "size changed" errors
1493 when comparing).
1494
1495 4. Corrected the long standing bug when dumping multiple tapes.
1496 This works for me, needs further testing.
1497
1498 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
1499 ====================================================================
1500
1501 1. Dump now runs correctly on kernels 2.1.x
1502 Fix made by Gerald Peters <gapeters@worldnet.att.net>
1503
1504 Changes between versions 0.4b2 and 0.4b3
1505 ========================================
1506
1507 1. Use realpath() if available
1508
1509 2. Report statistics
1510
1511 Changes between versions 0.4b1 and 0.4b2
1512 ========================================
1513
1514 1. Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
1515 the patch)
1516
1517 2. Fixed restore to make it able to read FreeBSD 2.x dumps again
1518
1519 3. Fixed configure.in to correctly handle --enable-rmt
1520
1521 Changes between versions 0.3 and 0.4b1
1522 ======================================
1523
1524 1. Integrated the changes from 4.4BSD-Lite2
1525
1526 2. Integrated the patches from Debian and Red Hat
1527
1528 3. Portability changes: use the __u32, __u16, __s32, and __s16 types
1529
1530 4. Changed dump to use the Ext2fs library to get block addresses. This
1531 should solve the endianness problem on SparcLinux.
1532
1533 5. Created a configure.in file (shamelessly stolen from the e2fsprogs
1534 distribution's one) to use autoconf
1535
1536 6. Fixed a few minor bugs
1537
1538 Changes between versions 0.2e and 0.2f
1539 ======================================
1540
1541 1. Added the creation of named pipes (fifos) in restore.
1542
1543 2. Added the -N flag in the restore manual page.
1544
1545 3. Added the file kernel.patch which contains the llseek() optimization
1546 patch for 1.2.x kernels.
1547
1548 4. Fixed a bug in the restoration of symbolic links: owner and group were
1549 not restored.
1550
1551 5. Integrated some changes from FreeBSD 2.2.
1552
1553 6. Added a call to ftruncate() after restoring each file to restore
1554 correctly files ending by a hole.
1555
1556 Changes between versions 0.2d and 0.2e
1557 ======================================
1558
1559 1. Fixed a bug in the "set owner/mode" process. Every file was restored
1560 with owner = root (0) and group = root/wheel/whatever (0).
1561
1562 Changes between versions 0.2c and 0.2d
1563 ======================================
1564
1565 1. Dump is now able to backup 2GB+ filesystems.
1566
1567 2. Dump and restore can now be linked as static binaries.
1568
1569 Changes between versions 0.2b and 0.2c
1570 ======================================
1571
1572 1. Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
1573
1574 Changes between versions 0.2a and 0.2b
1575 ======================================
1576
1577 1. Really fixed the bug that I should have corrected in 0.2a.
1578
1579 2. Enabled optimization again.
1580
1581 Changes between versions 0.2 and 0.2a
1582 =====================================
1583
1584 1. Disabled the optimization during compilation.
1585
1586 Changes between versions 0.1 and 0.2
1587 ====================================
1588
1589 1. Fixed a bug in fstab.c which caused a null pointer to be stored in
1590 the fs_type field (actually, I modified the file fstab.c to make it
1591 use the mntent functions).
1592
1593 2. Dump and restore now use a 4.3 BSD compatible dump format. Backups
1594 made by dump should be readable by the BSD restore and backups made
1595 by the BSD dump should be readable by restore. Unfortunately, this
1596 means that the dump format has changed between version 0.1 and version
1597 0.2 :-(
1598
1599 3. Dump is now able to backup a subtree, it is no longer limited to whole
1600 filesystems like the BSD version.
1601
1602 4. Dump now uses ext2_llseek() so it is able to backup filesystems bigger
1603 than 2 GB.
1604
1605 Changes between versions 0.0 and 0.1
1606 ====================================
1607
1608 1. Now create links rdump and rrestore during the `make install' step.
1609
1610 2. Linux port specific bugs added to the manual pages
1611
1612 3. Incorrect estimation of the number of tapes blocks fixed when doing
1613 incremental backups.
1614
1615 4. Better ls-like format in restore in interactive mode.