Libvirtd error in unstable

[ookhoi]

@biscotty

Hi,
Since yesterday, I’m getting an error with virtualisation.libvirtd.enable. It reports a “failed assertion: The ‘virtualisation.libvirtd.qemu.ovmf’ submodule has been removed”. Indeed, this option which exists in 25.05 does not exist in unstable, which is what I am following.

Could be:

Breaking changes announcement for unstable

virtualisation.libvirtd changes in #421549 removes submodule virtualisation.libvirtd.qemu.ovmf in favor of stably linking to OVMF image and variable templates that get distributed with QEMU. From nixos/doc/manual/release-notes/rl-2511.section.md changes: Domains that rely on automatic firmware and feature handling, i.e. <os firmware='efi'> need to trigger an update to <loader> and <nvram> entries. Using virsh edit <domain> and deleting aforementioned tags will cause libvirt to replace them w…