Stuck at blinking cursor after reboot (Ubuntu 20 LTS)

Created by: jlsjonas

Hi,

It seems that the system is failing to boot even into grub after running the Ubuntu 20LTS script. As there was already a system installed, I had to disable the already active raid using mdadm --stop --scan (perhaps that's where it's going wrong?)

Follow-up of https://github.com/terem42/zfs-hetzner-vm/issues/9#issuecomment-1140438304