The kickstart installation must access an installation tree. An installation tree is a copy of the binary Red Hat Enterprise Linux DVD with the same directory structure.

If you are performing a DVD-based installation, insert the Red Hat Enterprise Linux installation DVD into the computer before starting the kickstart installation.

If you are performing a hard drive installation, make sure the ISO images of the binary Red Hat Enterprise Linux DVD are on a hard drive in the computer.

If you are performing a network-based (NFS, FTP, or HTTP) installation, you must make the installation tree or ISO image available over the network. Refer to Section 4.1, “Preparing for a Network Installation” for details.