Hi Massimo, Thanks! In fact I did it (found a post about it) but forgot to restart openstack-nova-compute afterwards... It was my mystake! Cheers, Michel Le 30/04/2024 à 12:53, Massimo Sgaravatto a écrit :

Hello Michel As far as I remember we had the same problem when migrating from Yoga/EL8 to Yoga/EL9 If I am not wrong, for us the fix was simply installing these packages:

"qemu-kvm-device-display-virtio-vga", "qemu-kvm-device-display-virtio-gpu", "qemu-kvm-device-display-virtio-gpu-pci"

Cheers, Massimo

On Tue, Apr 30, 2024 at 12:14 PM Michel Jouvin <michel.jouvin@ijclab.in2p3.fr> wrote:

Hi,

After upgrading a compute server from Yoga/EL8 to Antelope/EL9, I cannot start VM on it. nova-compute log says:

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  Failed to build and run instance: libvirt.libvirtError: unsupported configuration: domain configuration does not support video model 'virtio'

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According to https://bugs.launchpad.net/nova/+bug/2018172, it seems the problem also existed when trying to deploy nova-compute Yoga/Zed on EL9 but what fixed the problem is not clear in the issue...

Any idea about what could cause this problem and how to fix it?

Best regards,

Michel