Using Centos DVD as Yum Repository

Centos coming with dvd/cd as installation media, in some case you want to use it as yum repository. In this tech tips posting, I used centos 6.1 DVD#1. 

1. Mount your dvd media under one of this directory as default :

 a. /media/CentOS/
 b. /media/cdrom/
 c. /media/cdrecorder/

2. edit the configuration : # vi /etc/yum.repos.d/CentOS-Media.repo

      make sure enabled = 1

3. Test # yum --disablerepo=\* --enablerepo=c5-media install groupinstall "X Window System" "GNOME Desktop Environment"