qemu-img create -f qcow2 rawdisk 100G
qemu-system-i386 -hda rawdisk -cdrom tails-i386-2.9.1.iso -boot d -enable-kvm -net nic -net user -vga vmware -m 1024
modprobe nbd max_part=8 qemu-nbd --connect=/dev/nbd0 rawdisk mount /dev/nbd0p1 /mnt/kvm
umount /mnt/kvm qemu-nbd -d /dev/nbd0