There seems to be a bug in the IMG that's on Zen6.5SPb1 (and previous). If
for whatever reason there are no disk drives (or at least /dev/hdx), then
IMG won't run, or rather, it will run, then immediately shut down, and not
print anything useful. It also won't run any of the info command either.

Now, you could argue that an imaging piece of software is going to be
slightly less that useful on a machine with no hard disks, but it would
still be good for 'img info' to at least work.