Comment 25 for bug 1560965

Thanks for response!

Of course, I'm able to launch instances from the same images when bus is virtio, it's working fine. Also, there are virtio_scsi kernel modules in all images I use for testing.
What is really interesting, when I tried to define new instance from the same XML-file but manually changed scsi to virtio, instance was booted normally... As far as I can see, there is a problem in hypervisor configuration (I use nova-compute-kvm), but obviously I miss something important.