mwhudson@aeglos:~$ sudo qemu-nbd -c /dev/nbd0 adt-xenial-amd64-cloud.img [sudo] password for mwhudson: 
mwhudson@aeglos:~$ sudo partprobe /dev/nbd0
mwhudson@aeglos:~$ sudo mount /dev/nbd0p1 image
mwhudson@aeglos:~$ ls image/usr/bin/lx
lxc    lxcfs  lxd    
mwhudson@aeglos:~$ ls image/usr/bin/lxd 
image/usr/bin/lxd