I recently inadvertently filled up my /dev/sdc1 (mounted at root) drive by copying files to the wrong place. Without realising this I tried to install upgrades in OMV and the system hung. I now get an "Error 500" from the web server, but I can still log in via SSH.
I've cleared the space back, of course, but can anyone advise how best to reinstall OMV without losing the configuration or NAS data?