Create yum repository from Scientific Linux DVD

Create yum repository from Scientific Linux DVD without copying the contents to hard disk

Steps:

1. Create a directory to mount DVD
    mkdir /mnt/dvd

2. Mount the Scientific Linux DVD
    mount /dev/cdrom /mnt/dvd

3. Create yum repo setting file at /etc/yum.repos.d/dvd.repo
    vi  /etc/yum.repos.d/dvd.repo

4. Copy the following contents into dvd.repo
[MyRepo]
name=MyRepo
baseurl=file:///mnt/dvd
enabled=1
gpgcheck=0

5. Run the following command to create yum database
createrepo /mnt/

Note: To run  'createrepo /mnt/' command 'createrepo' package should be installed first.