Re: bootloader/zipl in Debian

On 8 August 2017 at 09:37, Tuan M. Hoang <[email protected]> wrote:
> Hello,
>
> I have a few questions regarding s390x bootloader on Debian, hope some
> gurus in the list could help me out.
>
> Says I have Debian installed in my disk. To make it bootable, I should
> install the bootloader on the disk to make it bootable.
> 'bootable-system' virtual package on s390x should be 'zipl-installer'.
> Looking up in zipl-installer source tree at
> https://anonscm.debian.org/cgit/d-i/zipl-installer.git/tree/, I couldn't
> find any possible code installing the bootloader on disk. I couldn't
> find it in debian-installer neither. Am I missing something ?
>

When the installer gets to configuring zipl-installer, it executes the postinst:
https://anonscm.debian.org/cgit/d-i/zipl-installer.git/tree/debian/zipl-installer.postinst

this is where zipl is configured and executed in-target.



> I guess that code should contains zipl command and some other setups.
> For example, I tried :
>
> # zipl -V -t /boot -i /boot/vmlinuz -r /boot/initrd.img
>
> # chreipl ccw 0.0.0001 -L 1
> ( device id collected from /dev/disk/by-path/ccw-0.0.0001 )
>
> The commands run fine, and new 'bootmap' was installed in /boot but
> reboot failed.
>
> Here is the log at rebooting (running in KVM):
> https://paste.debian.net/980399/. There definitely must be some other
> setups/commands I am missing but I have no clue atm.
>
> Thanks for reading,
> Tuan
>