[rdiff-backup-users] using rdiff-backup to backup block-devices

[Freisei]

Hi!

is it possible to patch rdiff-backup to backup snapshots of lvm2-devices?
Would be great to have incremental backups of my virtual machines.

rdiff-backup /dev/vg0/backupdiff .
Fatal Error: Source /dev/vg0/backupdiff is not a directory

For rsync there is a patch called "--copy-devices"

greets - Freisei