Jeremy @ dcos.net

how to mount a qcow2, raw, or other virtual disk drive in linux

step 1: enable NBD on the host
modprobe nbd max_part=8

step 2: connect the blockdevice as a network block device
qemu-nbd --connect=/dev/nbd0 /some/vm/image.qcow2

step 3: find the vm partitions
fdisk /dev/nbd0 -l

step 4: mount the VM partitions on local host
mount /dev/nbd0p1 /mnt/someplace/

step 5: removing
umount /mnt/someplace
qemu-nbd --disconnect /dev/nbd0
rmod nbd