The firstboot utility runs after installation. It guides the user through a series of steps that allows for easier configuration of the machine.
The following notes apply to s390x Architectures:
The IBM System z does not provide a traditional Unix-style physical console. As such, Red Hat Enterprise Linux 5.7 for the IBM System z does not support the firstboot functionality during initial program load.
To properly initialize setup for Red Hat Enterprise Linux 5.7 on the IBM System z, run the following commands after installation: