Am 19.09.2011 10:35, schrieb Konstantin Khomoutov:
> On Sun, 18 Sep 2011 17:47:34 +0200
> Tobias Schenk<tobias AT die-schenks DOT net>  wrote:
>
>> I try use bacula 5.0.3 on suse linux to backup lvm snapshots.
>> Basically, I create a lvm snapshot called /dev/vmguests/backup using
>> the RunScript directive. Unfortunately, this is a sym link
>> to /dev/dm-6. I cannot be sure it is always dm-6. I would like to
>> follow the sym link and backup /dev/dm-6 as raw device.
>>
>> The hints I found while googling are are not working (like
>> appending /. to the File directive) or obscure (like using bash
>> scripting to resolve File names).
>> I cannot simply mount /dev/dm-6 to somewhere because the contents is
>> a partitioned raw device of a kvm instance.
>> Maybe it is possible resolve the link using a bash script in the file
>> directive
> You can use the `readlink` command to resolve the symlink.
>
>> but I have not found information about when the File
>> directive will be evaluated relative to RunScript.
>>
>> Has anyone a working solution for lvm snapshots?
>>
>> The Job currently looks very plainly like this:
>>
>> FileSet {
>>     Name = FsVMMyDms   # Adjust to VM
>>     Include {
>>       Options {
>>         compression = GZIP
>>         signature = SHA1
>>         sparse = yes
>>       }
>>       File = /dev/vmguests/backup
>>     }
>> }
> You can try to use something like
>
> File = "| readlink /dev/vmguests/backup"
>
> to dynamically read that file containing the real device name.


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