There are several methods that can be used to install Red Hat Enterprise Linux.

Installing from a CD-ROM or DVD requires that you have purchased a Red Hat Enterprise Linux product, you have a Red Hat Enterprise Linux 5.0.0 CD-ROM or DVD, and you have a DVD/CD-ROM drive on a system that supports booting from it.

Your BIOS may need to be changed to allow booting from your DVD/CD-ROM drive. For more information about changing your BIOS, refer to Section 4.3.1, “Booting the Installation Program on x86, AMD64, and Intel® 64 Systems”.