RedHat's tool for AutomatedInstallation.
See http://www.wlug.org.nz/HowToKickStartHOWTO and LinuxInstallationNotes.
Note that this has been ported to Debian and is now Progeny's method of achieving automated installation: see http://lists.debian.org/debian-devel/2003/debian-devel-200310/msg01880.html.
The old Debian method was using AutoInstall.
2 pages link to KickStart: