reviewing a bit about it, I found this unsolved question in another forum that perfectly describes my downside:
I'm a relative noob. I am running Ubuntu 20.04 LTS. Backed up a folder
on my Data drive which is formatted as NTFS and that I use both from
Windows10 (Windows 11 for me) and Ubuntu using Deja Dup and without encrypting the backup
file.
I wanted to test that it works and then deleted a test file from the
backed up folder and tried restoring it from backup by right-clicking
and selecting the Restore Missing Files... option. Everything seems to
work fine. It correctly picks up the file I deleted as missing from
the backup and then I go through the steps of selecting the file to
restore and click Forward and then on the Summary window I click
Restore. It then says Restoring Files and after a few seconds I get
asked to authenticate Authentication is needed to run
'/usr/libexec/-deja-dup/duplicity' as the super user. I then enter my
password.
One or two seconds later it fails with Restore failed Failed with an
unknown error. An interesting thing I noted was that it creates a folder with the
name of the file I wanted to restore before bombing out, but not the
file itself.
After doing some reading up I could decipher that Deja Dup is just
calling Duplicity which is actually doing the work. I then tried
restoring the file using a terminal in the hope that it would give me
more meaningful error messages to help trace the root cause.
Restoring with duplicity from a terminal yielded the same result. I
get prompted for a GnuPG passphrase which I then supply (I used the
same password as my user and it seemed to accept it).
It also creates just an empty directory with the name of the file I am
actually trying to restore.
The funny thing is, if I go into Deja Dup and restore the entire
backup into my home folder it works and I can then pick the file up
from there. This is inconvenient though because it restores all the
backed up files. I cannot just restore the file I want this way. But
it is a workaround.
I thought maybe it is because of the file systems being different
(EXT4 - works, NTFS - doesn't work). Tried replicating the above step
(restoring the full backup) from Deja Dup to a new folder on my Data
drive and it fails the same way as when I tried the single file. This
sort of supports my theory, but I'm not sure.
Any advice anyone?
I have added a couple of images to complement it, but there is not much more I can say. Thanks.
