Chapter 43. Installation and Booting

Custom system image creation with Composer available as a Technology Preview

The Composer tool enables users to create customized RHEL images. Starting with Red Hat Enterprise Linux 7.6, Composer is available in the Extras channel as a Technology Preview in the lorax-composer package.
With Composer, users can create custom system images which include additional packages. Composer functionality can be accessed through a graphical user interface in Web Console, or with a command line interface in the composer-cli tool. Composer output formats include, among others:
  • ISO disk image
  • qcow2 file for direct use with a virtual machine
  • file system image file
To learn more about Composer, see the chapter Building Custom System Images with Composer in the Installation Guide: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/installation_guide/chap-composer-x86 (BZ#1613966)