A few times ago I did a backup in a custom folder then delete it with a
rm command which is NOT a good idea.
All ran well, until I tried to upgrade some apps : https://paste.yunohost.org/raw/momefejoda
tl;dr : yunohost can’t find the backup I deleted so the upgrade stopped.
I recreated a fake
/home/USER/backup/20210206-160008.tar then used the
yunohost backup delete 20210206-160008 to properly delete this “backup”. After that, the upgrades ran well.
This issue is already known ( see App upgrades are failing when attempting to create backups where user is blocked because he backuped on a removable device).
Imho it could be useful to modify the
yunohost tools upgrade --apps to not block the upgrade if a backup is not found, maybe using a warning and asking user if he wants to continue the upgrade or not.