Zipl is the bootloader for s390x.

This element installs zipl on the base device holding the /boot directory on the system. It’s mandatory for building s390x images. It replaces the bootloader element (which would install grub2 by default).

This element has been tested with ubuntu and ubuntu-minimal distro.


  • DIB_ZIPL_DEFAULT_CMDLINE sets the CMDLINE parameters that are appended to the zipl.conf parameter configuration. It defaults to ‘LANG=en_US.UTF-8 console=ttyS0 console=ttyS1’