https://linux.oracle.com/documentation/EL6/Red_Hat_Enterprise_Linux-6-Installation_Guide-en-US.pdf
Kickstart - Automated Installations of RHEL and Oracle Linux
Kickstart installations provide an automated alternative to the normal interactive installations of RHEL and Oracle Linux. The automation of installation and post installation configuration steps represents a considerable time saving in situations where many similar installations are performed.
A kickstart installation requires a kickstart file that contains the answers to every question asked during an interactive installation. Kickstart files can be created in one of three ways:
