Kickstart installation basics
The following provides basic information about Kickstart and how to use it to automate installing CentOS.
Kickstart provides a way to automate the CentOS installation process, either partially or fully.
Kickstart files contain some or all of the CentOS 8 installation options. For example, the time zone, how the drives should be partitioned, or which packages should be installed. Providing a prepared Kickstart file allows an installation without the need for any user intervention. This is especially useful when deploying CentOS on a large number of systems at once.
Kickstart files also provide more options regarding software selection. When installing CentOS manually using the graphical installation interface, the software selection is limited to pre-defined environments and add-ons. A Kickstart file allows you to install or remove individual packages as well.
Kickstart files can be kept on a single server system and read by individual computers during the installation. This installation method supports the use of a single Kickstart file to install CentOS on multiple machines, making it ideal for network and system administrators.
All Kickstart scripts and log files of their execution are stored in the
/tmp directory of the newly installed system to assist with debugging installation issues.
Kickstart installations can be performed using a local DVD, a local hard drive, or a NFS, FTP, HTTP, or HTTPS server. This section provides a high level overview of Kickstart usage.
Create a Kickstart file. You can write it by hand, copy a Kickstart file saved after a manual installation, or use an online generator tool to create the file, and edit it afterward. See Creating Kickstart files.
Make the Kickstart file available to the installation program on removable media, a hard drive or a network location using an HTTP(S), FTP, or NFS server. See Making Kickstart files available to the installation program.
Make the installation source available to the installation program. See Creating installation sources for Kickstart installations.
Start the installation using the boot medium and the Kickstart file. See Starting Kickstart installations.
If the Kickstart file contains all mandatory commands and sections, the installation finishes automatically. If one or more of these mandatory parts are missing, or if an error occurs, the installation requires manual intervention to finish.