This will very useful when you are running on slow internet connection. Instead of go through the internet connection, it is possible to use Local CD/DVD-ROM as your yum repository.
1. Insert DVD/ISO into DVD-Drive.
2. Mount the ISO from the DVD-ROM into /mnt directory :
[root@centos62 ~]# mount /dev/cdrom /mnt mount: block device /dev/sr0 is write-protected, mounting read-only
3. Create centos62.repo text file in /etc/yum.repos.d/ with the following content. Please create something as follow:
[root@centos62 ~]# vi /etc/yum.repos.d/centos62.repo
[CentOS6.2-Repository] name=DVD-CentOS6.2 repository baseurl=file:///mnt enabled=1 gpgcheck=0
4. Finish. You can start install, remove and update using yum command :