Install Home Assistant OS with KVM on Ubuntu headless (CLI only)

[cipher_gaffes]

New thing to add…The kvm-ok was not installed on my system. I needed to install cpu-checker

apt install cpu-checker

[wmaker (Tommy Long)]

Just passing along …

Installing headless KVM VM on Ubuntu 24.04 + Home Assistant OS (HAOS): From “no network” to a clean VM — with fixes along the way

All steps were done on Ubuntu 24.04.2 LTS (headless) with libvirt/KVM and a bridged network. I end with a repeatable, EFI‑booting HAOS VM and a backup plan. I use systemd‑networkd + Netplan bridge (br0 ) with a static IP on the host. I install KVM/QEMU/Libvirt + OVMF (UEFI). I import HAOS qcow2 and create the VM with UEFI, VirtIO (disk & NIC), bridge=br0, and VNC. The HAOS CLI is on the graphical console (tty1) → I use VNC (or add a serial console explicitly). HAOS requires EFI to boot. 1) …

[Scritch]

This is a great howto! After the supervised installation was deprecated, I didnt know where & how to get started. Your guide solved 90% of my doubts. Especially the VNC access is great. Awesome write-up

[Meith]

Ok fixed my error, apparently docker service wasnt install.
i got ’ No files found for docker.service. ’

if someone get that kind of error, check if docker is install:

systemctl status docker

if not ;
( for ubuntu )

sudo apt update
sudo apt install docker.io

took couple hours but got it haha

[tobiasdax]

Ubuntu 26.04 need a better defined KVM:
apt install qemu-system-x86 libvirt-daemon-system libvirt-clients virtinst bridge-utils