Btw. for the KVM guest install I used:
sudo qemu-img create -f qcow2 /var/lib/libvirt/images/bionic.qcow2 8G
sudo virt-install --name bionic --vcpus 2 --ram 1024 --disk path=/var/lib/libvirt/images/bionic.qcow2,size=5,bus=virtio,format=qcow2 --os-type linux --os-variant generic --network network=default,model=virtio --graphics none --console pty -c /var/lib/libvirt/images/ubuntu-18.04.5-server-s390x.iso
uname -a Linux ubuntu 4.15.0-194-generic #205-Ubuntu SMP Fri Sep 16 19:53:54 UTC 2022 s390x s390x s390x GNU/Linux
Btw. for the KVM guest install I used:
sudo qemu-img create -f qcow2 /var/lib/ libvirt/ images/ bionic. qcow2 8G
sudo virt-install --name bionic --vcpus 2 --ram 1024 --disk path=/var/ lib/libvirt/ images/ bionic. qcow2,size= 5,bus=virtio, format= qcow2 --os-type linux --os-variant generic --network network= default, model=virtio --graphics none --console pty -c /var/lib/ libvirt/ images/ ubuntu- 18.04.5- server- s390x.iso
uname -a
Linux ubuntu 4.15.0-194-generic #205-Ubuntu SMP Fri Sep 16 19:53:54 UTC 2022 s390x s390x s390x GNU/Linux