System unbootable; help, please

[NickH]

Hi, I have a Proxmox system which should be the latest. It has a system disk, NVMe disk with the VMs and a 4 disk Raid5 setup with mdadm. I use the the RAID5 to store data for the VMs using NFS. Every so often I get an NFS hardware hang on a VM and I end up having to stop the VM's and reboot Proxmox.

This time it has not worked and the reboot of Proxmox is hanging. I can see the system disk being mounted and the NVMe being detected and then nothing. The RAID is recognised earlier on in the boot cycle. Unfortunately it is in the middle of growing from 3 to 4 disks but that may be irrelevant.

I don't know if I need to get to /etc/fstab to comment out the mounting of the RAID and and stop the nfs-server from trying to start. I have no idea what else I can do.

I have attached a picture of the console in the hung state.

Please can I have some help.

 

[NickH]

So I soldiered on by myself.
I managed to get the system bootable by commenting out the RAID from /etcfstab and physically disconnecting the drives. Unfortunately the RAID was irrecoverable as two of the four drives had identical faulty blocks. I could not even reassemble the array when excluding bad-blocks.