Comment 21 for bug 1697610

I've made what at best can be called a compatibility patch for nova for use with libvirt 2.5.0 or 3.5.0; it switches the type of the console to virtio, which allows machines to boot, but no kernel boot messages are captured - the first output it the login prompt.

Ideally we would backport the fixes in development to both 2.5.x and 3.5.x in artful and zesty.