[BackupPC-users] tar one-file-system

Hello,

I think there is a bug when using Conf{XferMethod} = 'tar';

and one-file-system option that backup only a hard link when puting two time the same relative path to the file (to backup). The tar option "--check-links" may help.

example:

Conf{BackupFilesOnly} = ['/','/bin'];

"/bin" and "/" are on the same file system.

Conf{XferMethod} = 'tar';

Conf{XferLogLevel} = 10;

Conf{TarClientCmd} = '$sshPath -q -x -n -l backuppc $host'

. ' nice -n 19'

. ' env LC_ALL=C /usr/bin/sudo $tarPath -c -v -f - -C $shareName+'

. ' --totals --one-file-system --check-links';

-----------------------------------------------------------------------------------------------------------------------------------------------

Running: /usr/bin/ssh -q -x -n -l backuppc HOST nice -n 19 env LC_ALL=C /usr/bin/sudo /usr/bin/tar -c -v -f - -C / --totals --one-file-system --check-links --exclude=\*/tmp/\* ./ ./bin

full backup started for directory /

Xfer PIDs are now 22697,22696

./

[...]

./bin/zmore

[...]

tarExtract: Got file './bin/zmore', mode 0755, size 2500, type 0 create   755       0/0        2500 bin/zmore

[...]

./bin/zmore

[...]

/usr/bin/tar: Missing links to `./bin/zmore'.

[...]

tarExtract: Got file './bin/zmore', mode 0755, size 0, type 1 create h 755       0/0          11 bin/zmore

-------------------------------------------------------------------------------------------

So at the end only a hard link will be in the cpool, ref to the real file is gone.

I think, the correct way may be to force the use of "--hard-dereference" if "--one-file-system" is present And/Or to exit when  tar detect a Missing links.

Of course Conf{BackupFilesOnly} may be corrected but I find is convenient to put '/' to create all the directories.

Thanks,

--

Ali

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