X-Git-Url: https://git.wh0rd.org/?p=dump.git;a=blobdiff_plain;f=CHANGES;h=7d5273e54ed134e0693285323f927ac073a50a00;hp=a46e316cc210a8954e48c7ee789dcb2ffdd10f98;hb=e531c44203905d5554118c09c8d0267f17879ee6;hpb=e7850aac218f2c009303b0a65903c54157139d0c diff --git a/CHANGES b/CHANGES index a46e316..7d5273e 100644 --- a/CHANGES +++ b/CHANGES @@ -1,8 +1,336 @@ -$Id: CHANGES,v 1.120 2001/07/18 09:50:48 stelian Exp $ +$Id: CHANGES,v 1.197 2002/11/15 09:25:25 stelian Exp $ -Changes between versions 0.4b22 and 0.4b23 (released ????????????) +Changes between versions 0.4b31 and 0.4b32 (released ?????????????) +=================================================================== + +1. Changed dump to use fcntl(F_SETLK) style locking instead + of flock() when locking the dumpdates file. With the old + locking scheme, a local user having read rights on the + dumpdates file could be able to do a Denial of Service attack + on dump. In order to lock the dumpdates file with the new + scheme, the user would need to have write access on the file. + Thanks to Richard Johnson for + reporting the bug (originally a bugtraq post). + +2. Fixed interactive 'ls' which caused spurious errors warnings + about 'undefined filetypes' detected. Thanks to Jorgen Ostling + for reporting this + bug. + +3. Fixed dump's estimate when dealing with sparse inodes. + +4. Modified dump to allow setting a blocksize bigger than 32kB + (raised the limit to 1024kB), because newer hardware needs + this for proper operation. Thanks to Dirk Traenapp + for reporting this. + +5. Fixed a bug causing Dump to stop and report an error if an + inode number in the exclude file was followed by some amount + of whitespace. Thanks to Jeffrey Sofferin + for reporting this bug. + +6. Fixed a bug which caused restore, in some particular cases, + to ask some 'scary' questions and leave a bunch of RSTTMP + directories behind when restoring incremental tapes. Thanks + to Philippe Troin for reporting this bug and + providing the test cases. + +Changes between versions 0.4b30 and 0.4b31 (released July 30, 2002) +=================================================================== + +1. Fixed rmt open flags transmission (GNU's symbolic syntax over + rmt) which I broke in 0.4b29. Thanks to Eros Albertazzi + for reporting the bug. + +Changes between versions 0.4b29 and 0.4b30 (released July 25, 2002) +=================================================================== + +1. Made dump print out the ext2 logical block number in case of a read + error, which can be given as an argument to debugfs' ncheck command, + in order to find out the affected inode. Added note about this + usage in dump's man page. + +2. Fixed a problem in restore when reading tapes written on big + endian machines with very old versions of dump. The patch was + contributed by George Helffrich . + +3. Fixed the tape length calculation when using large tapes + and compression. Thanks to Georg Lippold + for reporting the bug. + +4. Added a new set of examples in dump_on_cd_2 directory, based + on dump_on_cd examples but somewhat enhanced, supporting DVD + media, and localized in english and german. Thanks to + Georg Lippold for the new scripts. + +5. Made dump save 32 bit UID/GID. Internally, this was achieved + by switching from the old BSD inode format to the new BSD + inode format, which means that the tape format was changed. + However, since all restore versions out there should + transparently support both inode formats, the change should + have no side effects. Thanks to John Yu for + reporting the bug. + +6. Fixed a lot of warnings in the code shown when compiling + with 'gcc -W'. Thanks to Matthias Andree + for reporting this. + +7. Fixed a small markup bug in the dump man page. Thanks to + Eric S. Raymond for submitting the + patch. + +8. Rewrote entirely the man pages using the tmac.an macro + package (Linux man page format) instead of the original BSD + format. They should be now cleaner and easier to modify. + +Changes between versions 0.4b28 and 0.4b29 (released June 8, 2002) ================================================================== +1. Fixed a problem in the rmt ioctl command, where ioctl's issued from + non Linux clients were misinterpreted. The description of the problem + (incompatible numbering in Linux mtio opcodes) is documented at + ftp://ftp.fokus.gmd.de/pub/unix/star/README.mtio . Thanks to + Jörg Schilling for reporting this bug and + providing an excellent, cross-platform replacement for rmt in his + star package. + +2. Fixed a bug reported by Andy Mentges + which caused restore to fail when the inode maps were not entirely + contained on the first volume (when using really small volumes or + when dumping a huge number of inodes). + +3. Fixed a problem in dump, where files in subdirectories of directories + that have the nodump flag set (or being excluded with -e/-E) were + sometimes incorrectly dumped (instead of being excluded). The original + fix is from David C Lawrence in the FreeBSD version + of dump: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=32414 + Thanks to Ted Grzesik for reporting the bug and + help testing the patch. + +4. Added some example scripts from Gerd Bavendiek + which makes one able to pipe the output of dump, by the net, to + a remote CD-burner server. + +5. Made dump use O_CREAT|O_TRUNC both locally and remotely (over rmt), + and use GNU's symbolic syntax over rmt instead of numerical values + to assure multiple platform compatibility. + +6. Documented the -d option in restore. + +7. Added a -v (verbose) mode to dump. For now it just prints the number + of the inode being dumped, but this could evolve in future versions + to include interesting debugging output. + +8. Added a -o flag to restore, which automatically restores the current + directory permissions in -i or -x mode, without asking the operator + whether to do so. Patch submitted by Tony Clayton + and Peter Samuel . + +Changes between versions 0.4b27 and 0.4b28 (released April 12, 2002) +==================================================================== + +1. Fixed a bug in the QFA feature which could have caused + a bad tape positionning on restore (causing extra delays in + restore). Credits go to Uwe Gohlke . + +2. Added a small note in the dump man page specifying that + there should be no white space between the option letter and + the -j or -z parameter, thanks to Kenneth Porter + +3. Made restore work with older versions of the readline library, + by checking in configure for several extended symbols. Restore + can now be compiled with a readline as old as the 2.0 release + (though it may be a good idea to upgrade it to a more recent + version...). Thanks to Andrew Donkin for + reporting the build failures. + +4. Fixed a performance problem with the QFA file creation in + dump, which made unnecessary seeks on the tape slowing down + the dump. Thanks to Andrew Donkin for + reporting this issue. + +5. Removed the inclusion of some kernel headers in the dump + source, which prevented the compile in some kernel/glibc + headers/architecture combination. Thanks to Bdale Garbee + for reporting the bug. + +6. Added the appropriate error message when dump fails to + open the output file for writing. Thanks to Amith Varghese + for reporting this bug. + +7. Made restore able to understand large Solaris ufsdump tapes + (containing inodes bigger than 4194304). Sun have introduced + an "extension" to the dump tape format when dealing with + those inodes, which was uncorrectly handled by Linux restore. + Thanks to Uwe Gohlke for reporting the bug and + providing a test case. + +8. Added the -m parameter to dump which optimises the output for + inodes having been changed but not modified since the last dump + ('changed' and 'modified' have the meaning defined in stat(2)). + For those inodes, dump will save only the metadata, instead of + saving the entire inode contents. Inodes which are either + directories or have been modified since the last dump are saved + in a regular way. Uses of this flag must be consistent, meaning + that either every dump in an incremental dump set have the flag, + or no one has it. + +Changes between versions 0.4b26 and 0.4b27 (released February 15, 2002) +======================================================================= + +1. Fixed behaviour of dump when exceeding resource limits + (SIGXFSZ treatment). + +2. Added the -L flag to restore to allow the user to specify a + maximal allowed number of miscompares when using restore + with the -C option to check the backup. + +3. Detailed the manual entry for the -N option of restore. + +4. Added the -a flag to restore to make able doing unattended + restores in -i or -x mode (automatically walks through the + multiple dump volumes). + +5. Extended the QFA mode to work with local files and/or + remote tapes and files. This way, restore can know in advance + the tape number and the offset for the inodes to extract and + can minimize the extraction time by seeking directly to the + good tape/offset. + +6. Added the -A option to both dump and restore, + which makes dump to archive a dump table-of-contents in + the specified file to be used by restore to determine + whether a file is in the dump file that is being restored. + (the archive file syntax is also compatible with the + Solaris ufsdump generated one). + +7. Small fix in restore making it able to read some (broken ?) + Solaris ufsdump tapes. + +8. Fixed dump to correctly recognise the root filesystem when using + ext2 disk labels (LABEL=/). Thanks to John Yu + for reporting this bug. + +9. Added the -P option to restore to create a + Quick File Access file from an already made dump. Patch + contributed by Uwe Gohlke . + +10. Made restore compile and run on Solaris, making it a + possible replacement for the standard ufsrestore. Port was + contributed by Uwe Gohlke . + +Changes between versions 0.4b25 and 0.4b26 (released January 7, 2002) +===================================================================== + +1. Added a set of backup scripts from Eugenio Diaz + in the examples section. It features + automatic (cron based) full and incremental dumping of + several filesystems on a separate filesystem. + +2. Fixed a off-by-one miscalculation which disabled dumping + a one letter subdirectory. Thanks to Chris Siebenmann + for reporting the bug. + +3. Fixed several restore bugs occuring when trying to + restore some missing files on the tape. Thanks to Chris + Siebenmann for reporting the bug. + +4. Fixed --with-ldopts configure argument passing, installing from + a separate object directory, makefile cleanups contributed + by . + +5. Fix a bug which could caused, in some conditions, the highest + number inode of a filesystem, to not be dumped. Many thanks + to Chris Siebenmann for helping me + chase this bug. + +Changes between versions 0.4b24 and 0.4b25 (released November 17, 2001) +======================================================================= + +1. Added a mini howto from Patrick Walsh in the examples + directory. + +2. Minor man pages syntax corrections. Thanks to + Chris Danis for reporting the bugs. + +3. Added a script from David B. Peterson + to the examples section. It features dumping several + filesystems to a remote tape drive upon ssh. + +4. Added a patch provided by Richard Jones + which allows BRADEMAX (number of read errors tolerated by + dump) to be adjusted using the -I option. + +5. Fixed a bug which disabled doing "restore -C -f -". Thanks + to Clemens Stiglechner for the + patch. + +6. Add the -l option to restore to specify if, when doing a + remote restore, the file used to access the backup is a + regular file (the defaults being a tape drive). Restore needs + to know this information when reading a remote compressed + dump. Previously, this information was autodetected, but + the autodetection code fails (with ioctl: Inappropriate ioctl + for device) when using a non Linux remote box. Thanks to + many users and especially to Eros Albertazzi + for reporting this. + +7. Found a workaroung for the dump deadlock problem (3 childs + stuck in pause(), father in read()). The workaround seems + to work for me and several beta-testers. If it doesn't work + for you, please report back. + +8. Updated the RPM spec file (BuildPrereq, URL etc). + +Changes between versions 0.4b23 and 0.4b24 (released September 12, 2001) +======================================================================== + +1. Fixed the permissions of a newly created QFA file by dump. + +2. Cleaned up the source of dump (the external variables + definition was a complete mess, making possible to have + objects overlap). + +3. Fixed restore to use the full tape volume path when doing + a compare (since it changes the working directory to the + filesystem being compared in the process). + +4. Added the -q option to dump which makes dump abort + whenever it needs operator attention. It should be + easier to use dump in scripts with this option. + +5. Detect the use of incompatible options to dump and + refuse them (like -a and -B options together). + +6. Added bzip2 compression to dump/restore (use option -j level + to select it). Note that you will need a restore version + >= 0.4b24 in order to restore a bzip2 compressed dump. + The same warning as for the zlib compression applies: + the tape format of a bzip2 dump is not compatible with the + original BSD tape format. + +7. Fixed a overflow problem in dump corrupting the dump when + very large files were encountered. Thanks to Vladimir Nadvornik + for the bug report. + +8. Added a ioctl(BLKFLSBUF) in dump which should flush the + kernel buffer/page cache before starting the dump, helping + a bit those who use dump on mounted filesystems. Thanks to + John Yu and to Theodore T'so + for this suggestion. + +9. Updated the RPM spec file following the RedHat changes + (dynamically linked binaries now in /usr/sbin etc). + +10. Added a patch from Helmut Jarausch + which enables restore to recognise multi volume compressed dumps + done on CD. Included his scripts for dump (which pipe the dump + output directly into cdrecord) and restore. There is now + possible to to backups to CD on the fly! + +Changes between versions 0.4b22 and 0.4b23 (released July 20, 2001) +=================================================================== + 1. Fixed a buffer overflow in restore/tape.c. Patch provided by Marcus Meissner (Caldera International Security Dept.). @@ -24,7 +352,35 @@ Changes between versions 0.4b22 and 0.4b23 (released ????????????) 6. Changed the -B option of dump to limit the size of _compressed_ output per volume if compression is on. Patch contributed by Helmut Jarausch - . + . Note however that, since + it is impossible to predict the size of the compressed + data before doing the compression, the -B limit is a bit + conservative. + +7. Fixed a bug in reading the operator typed file/tape path for + the next volume in restore. + +8. Implemented a "-F script" option to restore which permits the + user to specify a script which will be launched at the + beginning of each tape, useful for automatic programming of + tape changers for example. See the restore man page for the + script parameters and return codes. + +9. Small fix for the QFA routines provided by Uwe Gohlke + , and some recommendations for QFA uses in + the man pages. + +10. Fixed the multivolume restoring where making a mistake + to the 'Mount next tape' prompt caused several blocks to + be lost. + +11. Enhanced the -e option of dump to take as a parameter a + comma separated list of inode numbers. + +12. Added the -E option to dump which specify a file containing + inode numbers to exclude from the dump. + +13. Fixed the compressed multi-volume dump + restore. Changes between versions 0.4b21 and 0.4b22 (released May 12, 2001) ==================================================================