How to Setup Local Yum Repository from CD-ROM/DVD-ROM image on RHEL 6

Method 1:
1. Insert DVD/ISO into DVD-Drive.
2. Mount the ISO from the DVD-ROM into /mnt directory :

[root@rhel6 ~]# mount /dev/cdrom /mnt
mount: block device /dev/sr0 is write-protected, mounting read-only

3. Check the existing partition on your RHEL 6 server :