I have the exact same scenario. BackupPC, installed via Synaptic, backing up by default to /var/lib/backuppc but I want it to backup to my external hard drive.
I know a little about symlinks but I've never actually had to do them.
I did this:
ln -s /var/lib/backuppc /media/300/backuppc
That seemed to work... but it just makes everything in /var/lib/backuppc appear in the new location. I want it in the new location instead of
the original, not in addition to. What am I doing wrong, or what do I need to do to accomplish this?
To recap: The partition where /var/lib/backuppc resides is not where I want my backups going to. /media/300/backuppc is a folder on my external (300GB, hence the '300' name) hard drive