[Bug 2072366] Re: s390-tools zipl breaks when user provides target attributes

[Frank Heimes]

** Tags added: s390x

** Also affects: ubuntu-z-systems
   Importance: Undecided
       Status: New

** Changed in: ubuntu-z-systems
     Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)

** Changed in: ubuntu-z-systems
   Importance: Undecided => High

** Changed in: s390-tools (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/2072366

Title:
  s390-tools zipl breaks when user provides target attributes

Status in Ubuntu on IBM z Systems:
  New
Status in s390-tools package in Ubuntu:
  New

Bug description:
  This issue has already been identified and fixed in the (upstream?)
  github repository:
  https://github.com/ibm-s390-linux/s390-tools/commit/63ff07ba38dda99e2661a097d05266555c727a2e

  The issue fixed by the revert linked above is causing Cloudware
  Oracular download image builds to fail on s390x. From the image build
  log:

  ```
  + ZIPL_EXTRA_PARAMS=--ramdisk=/boot/initrd.img
  + chroot mountpoint /sbin/zipl -V --image=/boot/vmlinuz --parameters=root=LABEL=cloudimg-rootfs --target=/boot/ --targetbase=/dev/loop3 --targettype=SCSI --targetblocksize=512 --targetoffset=2048 --ramdisk=/boot/initrd.img
  Error: Could not add image file '/boot/vmlinuz': Could not get disk geometry
  Looking for components in '/lib/s390-tools'
  Secure boot support: no
  Target device information
    Device..........................: 07:03
    Device name.....................: loop3 *)
    Device driver name..............: blkext
    Type............................: disk device
    Disk layout.....................: SCSI disk layout *)
    Geometry - start................: 2048 *)
    File system block size..........: 4096
    Physical block size.............: 512 *)
    Device size in physical blocks..: 4608000
    *) Data provided by user.
  Building bootmap in '/boot/'
  Adding IPL section
    initial ramdisk...: /boot/initrd.img
    kernel image......: /boot/vmlinuz
  zIPL environment block content:
  ```

  The fix is in the github repo but not yet released. The LP builders
  for Oracular are using version 2.33.1, which contains the bug.

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