Hi,
I recently upgraded my setup from OMV 6 to OMV 7 and everything was working fine. This weekend, the NAS installed unattended upgrades (linux) and required reboot which I did saturday morning. Since that, the NAS didn't showed up on the network. I plugged a monitor on it and it's stuck at the GRUB bootloader (see attachments). Nothing works except CTRL+ALT+SUPPR
I managed to boot on OMV system with System Rescue live CD choosing "run existing OS", and everything looks OK but I don't know how to repair GRUB...