[SOLVED] Convert i440fx Debian VM to q35 Machine type?

[blackpaw]

VM is Debian bullseye with GPU passthrough which has been giving me some issues, I'd like to test whether q35 will improve it.

Just switching to q35 causes it to hang on boot unless I remove the GPU passthrough, but even then, it loses network connectivity.

I presume the issue is it was installed with i440fx, is there a way to update that in the VM? I'm not sure if I'm up to a full reinstall and reconfig of everything on it

Thanks

nb. GPU is Intel Iris 655

 

[LnxBil]

I presume the issue is it was installed with i440fx, is there a way to update that in the VM? I'm not sure if I'm up to a full reinstall and reconfig of everything on it

That is very strange, normally Linux is much more forgiving in term of hardware change.

What is your VM configuration?

 

[blackpaw]

That is very strange, normally Linux is much more forgiving in term of hardware change.

What is your VM configuration?

Thanks, this is the booting one. Change it to q35 and it hangs after loading grub

nb. Latest Proxmox, 7.2-3

agent: 1
balloon: 0
boot: order=scsi0;ide2
cores: 4
cpu: host
hostpci0: 0000:00:02
ide2: none,media=cdrom
memory: 12288
meta: creation-qemu=6.2.0,ctime=1650470995
name: docker-server
net0: virtio=F2:CC:2C:F7:EC:CF,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: l26
scsi0: local-zfs:vm-101-disk-0,cache=writeback,discard=on,size=128G,ssd=1
scsi1: local-zfs:vm-101-disk-1,backup=0,cache=unsafe,discard=on,size=64G,ssd=1
scsihw: virtio-scsi-pci
smbios1: uuid=f369a620-9254-4d67-8cc7-25820f2363f9
sockets: 1
startup: order=6,up=10
tablet: 0
vmgenid: 670ebf5a-c091-4a2c-8567-156492d9cf6f

 

[blackpaw]

That is very strange, normally Linux is much more forgiving in term of hardware change.

I figured it out, changing the machine type changed the name assigned to the virtual network card

 

[johannes-z]

I figured it out, changing the machine type changed the name assigned to the virtual network card

I'm trying to do the same thing. What did you do to fix the new name being assigned?

 

[blackpaw]

I'm trying to do the same thing. What did you do to fix the new name being assigned?

Edited /etc/network/interfaces for the new device name. Had to do it via VNC console.