On 2025-10-22 13:56, 'unman' via qubes-users wrote:
On Wed, Oct 22, 2025 at 11:39:18AM +0000, Stickstoff wrote:
In the end I gavce up on my own backup script with
$ qvm-block attach
and will try to adapt wyng as a backup tool [1].

As I regularly say, I dont see that Wyng provides features that most
users expect from a backup/restore tool.

Want to find a file that you deleted some time in the last month or
year? Restore EVERY backup that you took, and look through the volumes
til you find it.
Want to find a specific version of that file you were working on? Again,
restore EVERY Wyng backup and check until you find it.
Note that if you have also added a large quantity of other data in the
meantime you have to restore ALL that data until you find the one
file you are looking for.
No doubt the Qubes Backup, and Wyng serve a specific use case. It's just
that in my experience it isnt what most users want from their backups.
dd'ing a disk is undoubtedly a good way of preserving data. But it
doesnt serve most people's expectations of a backup/restore process.
Qubes Backup and Wyng - the same.

Ouch. I did not realize this behavior (yet).
Indeed, this sounds more like a last-line-of-defense disaster recovery tool, and not a regular backup&versioning tool.


You should be aware of these limitations and be happy to work with them:
otherwise, put another backup regime in place that WILL serve your
needs.

I like my idea of a backupscript more, which uses
$ qvm-block attach
to attach each vms' private.img to a backup-vm for rsync to a network destination. One file per vm, private.img. Versioning is done on the target, by its regular backup rotation.

I always had unreliable function of
$ qvm-block attach
since I started using it several years ago. I would be happy to put up a four-digit bounty to make it reliable and better documented. But of course I can't even be sure if it's a general problem or solely on my side here. If anyone wants to invest time into this and/or troubleshooting why it's not behaving on my side, please let me know. Or how to set up a public bounty for this in general.

With wyng, at least I have *any* backup now, which gives me time to figure things out.
I'm still unsure how to feel about 300k+ files per backup (for 50GB),
but it works for having *any* backup at least.
I'm appalled at the prospect.
Thank you. It does feel wrong to me, but I am not knowledgeable enough to prove why ^^


-stickstoff

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