installer_mac=$(sudo virsh domiflist daisy | grep vnet | \
grep -Eo "[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+")
installer_mac=$(sudo virsh domiflist daisy | grep vnet | \
grep -Eo "[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+:[0-9a-f]+")