[Bug 2097613] Re: (auto-)Install issue with 25.04 on s390x using DASD disks

[Frank Heimes]

The chzdev man page does not provide details on how the positional DEVICE argument is processed:
DEVICE
       Use the DEVICE positional argument of chzdev to select a single  device
       or  a range of devices by device ID as target for a tool action. To se‐
       lect a range of devices, specify the ID of the first and the  last  de‐
       vice  in the range separated by a hyphen (-).  Separate multiple IDs or
       ranges with a comma (,).

       Example: chzdev dasd 1000,2000-2010 -e

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Title:
  (auto-)Install issue with 25.04 on s390x using DASD disks

Status in subiquity:
  Invalid
Status in Ubuntu on IBM z Systems:
  In Progress
Status in s390-tools package in Ubuntu:
  Confirmed

Bug description:
  This is actually a spin off of comment #9 of LP bug #2093352 "autoinstall crash with Ubuntu Server 25.04":
  https://bugs.launchpad.net/subiquity/+bug/2093352/comments/9
  since it's believed that this is a different bug compared to what's described as well.


  That's weird having done the same with an LPAR system now, using DASD disks (which I assumed to work), autoinstall fails on LPAR with:
  "
  2025-02-03 15:28:22,913 INFO probert.lvm:119 b' 1 logical volume(s) in volume group "s1lp15vg" now active\n'
  2025-01-31 15:28:25,619 INFO curtin:1396 Validating extracted storage config components
  2025-01-31 15:28:36,199 INFO root:38 finish: subiquity/Network/apply_config: SUCCESS: silent=False
  2025-01-31 15:28:46,210 ERROR root:38 finish: subiquity/Mirror/apply_autoinstall_config/waiting: FAIL:
  2025-01-31 15:29:00,731 ERROR root:38 finish: subiquity/Filesystem/apply_autoinstall_config/convert_autoinstall_config: FAIL: '/dev/dasda2'
  2025-01-31 15:29:00,731 ERROR root:38 finish: subiquity/Filesystem/apply_autoinstall_config: FAIL: '/dev/dasda2'
  2025-01-31 15:29:00,731 ERROR root:38 finish: subiquity/apply_autoinstall_config: FAIL: '/dev/dasda2'
  2025-01-31 15:29:00,731 ERROR subiquity.server.server:525 top level error
  Traceback (most recent call last):
    File "/snap/subiquity/6390/lib/python3.12/site-packages/subiquity/server/server.py", line 1043, in start
      await self.apply_autoinstall_config()
    File "/snap/subiquity/6390/lib/python3.12/site-packages/subiquitycore/context.py", line 165, in decorated_async
      return await meth(self, **kw)
             ^^^^^^^^^^^^^^^^^^^^^^
  "

  Looks like the device "/dev/dasda2" cannot be properly handled - but
  this is a proper partition on a DASD disk.

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