this is my very first post thanks to the fact that I installed OMV about an year ago (4.x) and it always worked fine, but now I have an issue.
I'm using OMV primarily as an Ftp server (almost exclusively), it is installed on a virtual machine on a Qnap Nas (I used the provided iso) and I usually update it connecting via SSH with Putty with the following lines:
# apt update
# apt upgrade
# apt autoclean
When I noticed that the 5.x version was available I did:
# apt update
# apt dist-upgrade
rebooted and did my usual update routine.
Now the problem, after dist-upgrading, apt is unable to resolve deb.debian.org.
I tried several times to modify the /etc/apt/sources.list file, appending to every line a different distro name (stable, stretch, buster) or changing the mirror (http://ftp.us.debian.org, ftp.debian.org, ftp.it.debian.org...), trying the update routine for every change, but still I get the error.
I have no problems with the users and folders created before the update, but now I receive several errors creating new users and granting them rights using the interface.
Is there a way to address the issue?
If not, can I save my existing users, folders and data to format the machine and create a new one?
Thank a lot in advance, kind regards