Hello My cluster: Two servers running Proxmox 5.3-8 and a server running NAS, not HA configured. I'm having a trouble with a VM in my cluster, recently this VM running Ubuntu 18.04 made a kernel upgrade (4.15.0-48) and before reboot the VM doesn't start with an error: I have checked blkid using a live cd to check the UUID: And fstab: All seems to be ok, but the VM doesn't start... I'm looking for solutions, and i was try some solutions that i find in www, but no luck. I have some machines running Ubuntu 18.04 upgraded with that kernel and no trouble with it, for that reason i think that this behaviour of the vm is a Proxmox problem... (not sure, but i think that...) Any idea? Many thanks. Abraham.