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

[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) …