> I would like a backup tool that does not bring a million dependencies with
> MBs of files. Something that works on server without X Windows and can
> send backup to an externally attached USB drive. Nothing fancy. No
> network infrastructure. Incremental backups would be greatly appreciated.
> Ability to pipe to a compression program is a plus, just like I did with
> dump.
I used to use rsync for that kind of job, but nowadays I tend to prefer
`bup` because it handles incrementals really well (especially in terms
of compression). It's in Debian stable or you can find it at
https://github.com/bup/bup.
Stefan
PS: Of course, you'll still want to take a snapshot (e.g. with LVM) and
back that up rather than the live filesystem.