mila
July 23, 2026, 8:25pm
1
Hi there.
Let’s say I don’t want to restore dom0 full home backup, but only a directory.
It’s too big and I don’t want go back to this unbalanced disk slicing…
But with qubes bck tool isn’t possible change it in this way.
So what if I restore dom0 backup in another qube and pick from there what I need than dispose it?
Do You think it’s possible?
I’ve tried suggested way “ Emergency backup recovery (v4) — Qubes OS Documentation ” , but fails the password check (but in the qubes backup tool it works perfectly!).
Thanks a lot.
Cheers.
I always manually copy dom0 /home alongside full backup.
kuhbs
July 23, 2026, 9:00pm
3
Do you have a backup already that you want to restore, or is this a “for the future” question?
If its the latter then in dom0:
tar cvzf dom0-home.tar.gz /home
qvm-copy-to-vm sys-usb dom0-home.tar.gz
Copy the .tar.gz to a usb stick. Then when you need it, from dom0:
qvm-run --pass-io sys-usb 'cat /path/to/dom0-home.tar.gz' > dom0-home.tar.gz
tar xvzf dom0-home.tar.gz
mila
July 23, 2026, 10:28pm
4
Hi there.
I’ve a backup of a full dom0 and I need only to restore some custom scripts from it.
Nothing exportable by hand…
Thanks anyway.
Cheers.
That’s your best option. Are you sure it’s just a passphrase issue?
mila:
as said…
Oups, I didn’t read all your post.
Ideas:
check your keyboard layout (verify by typing your passphrase in a clear text area)
verify your backup passphase with qvm-backup (aka Restore Backup ) in dom0 (only the first steps without restoring : choose your backup file, fill the passphrase then the tool lists the backup content)
verify your backup passphrase, if you allowed it, your backup passphrase is here :
user@dom0:~$ grep ^passphrase /etc/qubes/backup/qubes-manager-backup.conf
1 Like
mila
July 24, 2026, 5:14pm
9
Hi there.
Probably is changed something in the procedure?
I don’t know… Anyway I’ve correctly restored from same backup other VMs.
And checked it now with same pwd… only differences I can see is scrypt version…
Otherwise I don’t know what else it can be.
Cheers…
mila
July 24, 2026, 5:18pm
10
Hi there.
Yeah, in the reported procedure, the step: <<read -r backup_pass>> write it in clear, so I’m sure it’s the same pwd I use in Restore Backup to open the same archive…
Cheers…
Are you constructing the correct low-level scrypt password from that high-level backup password? E.g. to decrypt the chunk dom0-home/foo.012.enc , the scrypt password would be BACKUP-ID !dom0-home/foo.012!BACKUP-PASSWORD
1 Like
mila
July 24, 2026, 5:32pm
12
Hi there.
I’m stuck in previous step: 6. Verify and decrypt, decompress, and extract the qubes.xml file.
It fails, with the reported wrong password…
Cheers…
Similarly, for that one the scrypt password would be BACKUP-ID !qubes.xml.000!BACKUP-PASSWORD
Note that there is a .000 suffix, but no .enc.
1 Like
mila
July 24, 2026, 5:53pm
14
Hi there.
It’s almost good to say… now it worked!!!
But I’ve changed fedora version this time (it’s 43 instead of 42); I don’t know if it’s really important…
Anyway, thanks a lot!
Cheers!
2 Likes
