Don’t know if you are still interested in deploying a backup strategy for Qubes. If it’s the case I summarized and linked some refs to incremental backup discussions on Qubes here
Thanks a lot for spawning this fast in this thread explaining about your motives !
To great surprise, it’s my finding too, for both tools discussed previously …
Restic and Borg doesn't seem to leverage CoW snapshots metadata Restic : Someone <a href="https://github.com/restic/restic/issues/3557" rel="noopener nofollow ugc">fiddling around with the restic --use-fs-snapshot for ZFS</a> but not working and seemingly no other fs than VSS.
Borg : Found <a h…
But for full disk copies such as your strategy suggest, I came across this
Why do I like raw disk backups?
Upgrading Qubes, specifically dom0, has the risk of either bricking boot or networking. Both happened to me several times in the past. These are situations which are difficult to recover from and break productivity.
How else could I test if upgrades with reasonable certainty that my system won’t get bricked? Perhaps by having an identical spare notebook of the same type with the very same hardware.
As for the time required to perform a raw disk backup, it’s goi…