In AIX version 6 it was bought in a rather useful command that I only just found out about, where have I been to miss this? -
# loopmount -i <cdrom.iso> -o "-V cdrfs -o ro" -m /<mount-point>
So, got a ISO of a DVD that got that
one base filesystem package you can get anywhere else? Then this might
just be the perfect command for you.