[NCLUG] Trying to mount and ISO image

[bmc]

 Hello all.
I am trying to mount an ISO image so it can be browsed as if it were sitting
on the cd it came from.
The problem I am running into is this. Using RedHat 7.2 , mounting the image
in /mnt/iso the name of the ISO is testiso. So the command I am using  (from
/home/brett) is mount testiso.iso /mnt/iso -o loop but this tell me that I
need to specify a filesystem. So (and I'm guessing here) I thought that I
should use iso9660 to specify the Filesystem. This told me that I had a bad
superblock or too many filsesystems mounted blah blah blah.
I have also tried mount -o loop testiso.iso /mnt/iso with no luck.
My question here is what am I doing wrong? Is there a filesystem I should
use other than iso9660 ? Do I need to specify a filesystem or am I just
using the command improperly? I have tried several other combinations as
well such as  mnt -s....  mnt -t.... using the auto as a filesystem. The
only one that actually worked ( somewhat) was the proc filesystem but I knew
I didn't wanna leave it that way. Can anybody help ?


Brett
PS in case you wondered yes I am logged in as root.