s390 Limitations
In order to run the installation system a working network setup and
ssh session is needed on S/390.
The booting process starts with a network setup that prompts you for
several network parameters. If the setup is successful, you will login
to the system by starting an ssh session which will launch the
standard installation system.
s390 Boot Parameters
On S/390 you can append boot parameters in the parm file. This file can
either be in ASCII or EBCDIC format. Please read
Device Drivers and Installation Commands
for more information about S/390-specific boot parameters.