Using the distro DVD as repo in Red Hat

Firt, mount the distro DVD or ISO.

Create a file /etc/yum.repos.d/dvd.repo.

Open the .discinfo in the root of the DVD or ISO and copy the code of the first line.

Open /etc/yum.repos.d/dvd.repo and fill it as follow:

[dvd]

mediaid=1170972069.396645*

name=DVD for RHEL5

baseurl=file:///path/to/media/Server

enabled=1

gpgcheck=0

Replace the mediaid value with the code copied from the .discinfo file.

Then, use yum with --noplugins

:)