Notes on VM building

What is says in the title.

Here's what I run to start a Debian install with a virtio storage and network enabled UEFI virtual machine:

$ sudo qemu-img create -f qcow2 /srv/vm-backing-store/padmeamadeus-0-vda.qcow2 64G
$ sudo virt-install --name padmeamadeus-0 --memory 5120 --vcpus 2 --cpu host --cdrom ~/Downloads/debian-testing-amd64-20250726-netinst.iso \
      --boot uefi --osinfo debian11 --disk /srv/vm-backing-store/padmeamadeus-0-vda.qcow2,bus=virtio --network bridge=br0,model=virtio \
      --graphics=spice

5 Gbytes of RAM provisioned. The VM's disk will be encrypted with LUKS and 4Gibytes of RAM will be needed for the disk encryption passphrase operation that unlocks the data.