Has something changed with the repo or files since "yesterday"?
Fresh install this morning of OMV 3 on a spare PC (on which I have installed Debian 8 then OMV3 several times this weekend, all worked fine until today) is throwing this error when trying to install an update to it on the Update Management page. Here is error:
>>> *************** Error ***************
Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C; export DEBIAN_FRONTEND=noninteractive; apt-get --yes --force-yes --fix-missing --auto-remove --allow-unauthenticated --show-upgraded --option DPkg::Options::="--force-confold" install linux-image-amd64 2>&1': Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
linux-image-amd64 : Depends: linux-image-4.9.0-0.bpo.1-amd64 but it is not installable
E: Unable to correct problems, you have held broken packages.
<<< *************************************
Repeated attempts to update this have failed. Tried SSH and "apt-get install linux-image-amd64" but that was similar result:
The following packages have been kept back:
linux-image-amd64
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.