On Tue, 2010-11-23 at 15:51 +0100, Sven Joachim wrote:
> On 2010-11-23 14:44 +0100, Xavier Bestel wrote:
> > Is there an easy way to debug it ?
> 
> You could set BM_LOGGER_LEVEL to "debug", maybe that helps.  There is
> also an undocumented "-d|--debug" option for backup-manager.  Otherwise,
> insert a "set -x" at the beginning of /usr/bin/backup-manager and you
> will be overwhelmed by its verbosity. ;-)

-d doesn't say much, apart from printing the useless logfiles:

[r...@awak:~]$ LANG=C backup-manager -v -d
When validating the configuration file /etc/backup-manager.conf, 1 warnings 
were found.
/bin/tar: Removing leading `/' from member names
/mnt/backup/awak-boot.20101123.tar.gz: ok (0M, cce53a1524d08bbb94b340b8bec82075)
/bin/tar: Removing leading `//' from member names
/usr/share/backup-manager/backup-methods.sh: line 605: 32181 Segmentation fault 
     $command $file_to_create "$target" > $logfile 2>&1
Unable to create "/mnt/backup/awak.20101123.tar.gz", check 
/tmp/bm-tarball.log.0kNKAd
/bin/tar: Removing leading `/' from member names
/bin/tar: /home/xav/.bogofilter/wordlist.db: file changed as we read it
Tar reported a file changed during archive creation.
/mnt/backup/awak-home.20101123.tar.gz: ok (387M, 
9423aead90d47fcbe8416ffce6e868dc)
Unable to find the md5 hash of file 
"/mnt/backup/awak-home.20101101.master.tar.gz" in file 
"/mnt/backup/awak-20101101.md5".
Unable to find the md5 hash of file "/mnt/backup/awak-home.20101102.tar.gz" in 
file "/mnt/backup/awak-20101102.md5".
1 error occurred during the tarball generation.

sh -x, of course works (thanks for the hint). I've got my command:
/bin/tar --listed-incremental /mnt/backup/awak.incremental.bin 
--one-file-system -p -c -z -f /mnt/backup/awak.20101123.tar.gz
but it's not that easy to parse :)

Maybe that part: "$command $file_to_create "$target" > $logfile" should
be expanded before being printed ?

I'll send a bugreport for tar.

Thanks,
        Xav




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