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action #33682

Updated by nicksinger almost 4 years ago

#33223 showed us how to setup a SCSI-drive to kickstart a SLES installation from the initramfs by using kexec to chain-load several "bootloader" steps.
This knowledge now needs to be preserved for future in form of documentation. This includes ( **ACs** ):

* How to setup the "magic" bootstrap SCSI-disk
* Partitioning
* `zipl` installation
* How to use qnipl (partly done in https://github.com/nicksinger/dracut-qnipl/blob/master/README.md)
* Limitations/Pitfalls/Improvements
* Reproduce the setup

Notes:

* https://progress.opensuse.org/projects/openqav3/wiki#s390x-Test-Organisation would be maybe a good place to put all the info
* Move dracut-qnipl into a non-private repo (maybe openQA org?)
* bootstrap SCSI-disk is a shared medium between several LPARs and Infra/gschlotter is needed to link LPAR <-> SCSI-bootstrap-disk
* Example cmd to start an LPAR remote (e.g. from a x86_64 host): `snipl -f ./snipl.conf -s P0069A27-LP3 -A fa00 --wwpn_scsiload 500507630713d3b3 --lun_scsiload 4001401100000000 --ossparms_scsiload "install=http://openqa.suse.de/assets/repo/SLE-15-Installer-DVD-s390x-Build533.2-Media1 hostip=10.161.159.3/20 gateway=10.161.159.254 Nameserver=10.160.0.1 Domain=suse.de ssh=1 regurl=http://all-533.2.proxy.scc.suse.de"`

Notes about the "magic" bootstrap disk:

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