Hello,

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 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
   }
}

Job {
   Name = JbBcVMMyDms    # Adjust to VM
   Enabled = yes
   JobDefs = JdVMGuest
   FileSet = FsVMMyDms   # Adjust to VM
   Schedule = ScMondays  # Adjust to VM
   RunScript {
     RunsWhen = Before
     Command = "/usr/local/tbin/mountbackup.sh vmguests mydms"  # Adjust 
to VM
   }
   RunScript {
     RunsWhen = After
     Command = "/usr/local/tbin/umountbackup.sh vmguests"
   }
}

Thank you all,
Tobias


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