First check what are the devices available with the command blkid
#blkid
/dev/sr0: LABEL="RHEL_5.9 x86_64" TYPE="iso9660"
from the list we can assume that there is disk labeled RHEL_5.9 x86_64 in optical drive .
Now we can mount it in /mnt/cdrom or /media/cdrom directory . If there is...