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I've currently got a backup that backs up all my files to an external hard drive, but currently I am traveling and I want to backup file changes, but without having to duplicate all the files, or create a git repo that would be the size of my existing files in deltas.
So what I want to do is backup my entire home folder to /srv
using hard links (so no extra size) then use rsnapshot to make differential backups of my home folder, so only the file changes will be different.
Is this possible using rsnapshot? Is there another tool that would work better? I want to store incremental/differential backups of only file changes on the same hard drive.
I guess this would be considered less backup, more version control. Maybe something like zfs?
I'm running debian.
Thanks!