OMV 8 Web UI does not show available updates after upgrade from OMV 7

After upgrading a system from OMV 7 (Debian 12) to OMV 8 (Debian 13) using the official upgrade procedure, I noticed that the OMV 8 Web UI showed “No updates available”, while `apt update` and `apt list --upgradable` clearly reported many upgradable packages.

Root cause:

The script `/usr/sbin/omv-mkaptidx` was replaced by a dummy wrapper containing only:

#!/bin/sh

exit 0

As a result, the OMV APT index file

/var/cache/openmediavault/archives/Packages

remained empty (0 bytes), so the Web UI could not display available updates, even though APT itself worked correctly.

Fix:

On my system the real implementation was still present as:

/usr/sbin/omv-mkaptidx.real

Restoring the wrapper to call the real script fixed the issue:

#!/bin/sh

exec /usr/sbin/omv-mkaptidx.real

After this, running `omv-mkaptidx` and reloading the Web UI caused available updates to be shown correctly.

This looks like an upgrade-related issue where the wrapper script is not restored properly during the OMV 7 → OMV 8 upgrade.

Quote

If you had the upgrade output, that would be helpful.

Thank you very much for your response, but I have fixed it already (as I wrote in my post).