추가 - edit vagrant box for vagrant-libvirt

copy image and files

mkdir -p images
cp ~/.vagrant.d/boxes/${TARGETIMAGE}/0/libvirt/* images/
cd images

apt-get install -qqy lvm2
modprobe nbd

qemu-nbd -c /dev/nbd0 `pwd`/box.img
vgscan
vgchange -ay
mount /dev/mapper/vagrant--vg-root /mnt

binds="/dev /dev/pts /proc /sys /run"
for d in $binds; do
  mkdir -p /mnt${d}
  mount --bind ${d} /mnt${d}
done

chroot /mnt bash
# blah blah blah
exit

cd /
for d in $(mount | awk '/\/mnt/{print $3}' | sort -r); do
  umount $d
done
vgchange -an vagrant-vg
qemu-nbd -d /dev/nbd0