[Bug 1843226] Re: Installation on z14 LPAR via FTP load fails

[Dimitri John Ledkov]

we probably need to trace d-i's zipl-installer postinst as it's probably
failing during lvm & btrfs probing. (which is between sysconfig-hardware
installation and writing zipl.conf)

** Also affects: zipl-installer (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: zipl-installer (Ubuntu)
   Importance: Undecided => Critical

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https://bugs.launchpad.net/bugs/1843226

Title:
  Installation on z14 LPAR via FTP load fails

Status in Ubuntu on IBM z Systems:
  Confirmed
Status in debian-installer package in Ubuntu:
  New
Status in zipl-installer package in Ubuntu:
  New

Bug description:
  Installation on z14 LPAR via FTP load fails. The installer breaks with
  error message

  "An installation step failed. You can try to run the failing item
  again from the menu, or skip it and choose something else. The failing
  step is: Install the ZIPL boot loader on a  hard disk"

  When opening a shell:
  ~ # chroot target/ bash
  root at m35lp54:/# zipl
  Using config file '/etc/zipl.conf'
  Error: Config file '/etc/zipl.conf': No such file or directory

  After creating a working zipl.conf the boot loader can be written to disk on the shell and the disk becomes bootable. The Installer however still fails with the same error message.
   
  ---uname output---
  Linux m35lp54 5.2.0-15-generic #16-Ubuntu SMP Fri Aug 23 20:15:30 UTC 2019 s390x GNU/Linux
   
  Vendor ID:                       IBM/S390
  Machine type:                    3906 

  ---Point of failure---
  Installation of zipl on hard disk.

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