Introduction Virtio block device is a para-virtualized device for kvm guest. It is different from normal emulated hard drive, because it is simply faster. This small how-to is about how to make a disk para-virtualized and boot from it. Linux Steps create a disk and install os to it by appending "-hda <your_disk_image>" to your virtual machine in your guest os, upgrade kernel to 2.6.25 which contai