Create and configure yum on red hat linux

If you are using VMware then first make the redhat iso connected to the guest. On the other hand if you have the dvd just insert it to your dvd drive.

Log in as root

mkdir /mnt/dvd/

mount /dev/cdrom /mnt/dvd/

cd /mnt

find /mnt -iname 'createrepo*'

rpm -ivh /mnt/dvd/Server/createrepo-0.4.11-3.el5.noarch.rpm

createrepo .

cat  > /etc/yum.repos.d/dvdiso.repo <<EOF
[MailRepo]
name=MailRepo
baseurl=file:///mnt/
enabled=1
gpgcheck=0
EOF

# yum clean all

# yum list

# yum install -y rpmname.rpm 

Find the video of this here 

Hope this helps

Thanks

Subhajit