root@domU--:/media# mount -o ro /dev/xvdg recovery_volume_01/
root@domU--:/media# ls -latr recovery_volume_01/opt
total 8
drwxr-xr-x 22 root root 4096 Jul 12 15:45 ..
drwxr-xr-x  2 root root 4096 Sep 15 19:30 .
root@domU--:/media#

Yep. Brilliant.