How to mount an ISO image file

1. Create a directory (mount point) fro the iso file.

2. As root mount the file, in this case default /media directory has been used as the mount point

mount -o loop rhel-server-5.5-x86_64-dvd.iso /media

3. To access the files inside the iso cd to /media.

A loop device is a pseudo-device that makes a file accessible as a block device