Use ready install script (to be run on Proxmox host): install.sh
OVMF
Detach
and Remove
wget https://github.com/home-assistant/operating-system/releases/download/4.16/hassos_ova-4.16.qcow2.gz
gunzip hassos_ova-4.16.qcow2.gz
qm importdisk 111 hassos_ova-4.16.qcow2 local-zfs --format qcow2
Unused Disk 0
to scsi0
storage.Options
and set correct boot orderHA should works and should be available on local address: http://homeassistant.local:8123