[Bug 2080474] Re: ubuntu installation failing for systems having SAN disk

[Launchpad Bug Tracker]

This bug was fixed in the package multipath-tools - 0.11.1-2ubuntu1

---------------
multipath-tools (0.11.1-2ubuntu1) questing; urgency=medium

  * Merge with Debian unstable (LP: #2110438). Remaining changes:
    - d/rules: don't build the multipath-tools binary package on i386; only kpartx.
    - d/p/enable-find-multipaths.patch: re-enable find_multipaths by
      default -- see the removed 'add_find-multipaths.patch' (LP 1463046)
    - d/t/initramfs: determine extracted main cpio path dynamically
    - d/NEWS: add removal of kpartx-boot package
    - d/rules: remove -Bsymbolic-functions from LDFLAGS
    - d/rules: install friendly names multipath.conf by default
  * Drop changes:
    - d/t/tgtbasedmpaths: allow rc of 3 for socket (LP #2078888)
      [included in 0.11.1-2]
    - dmsetup version restriction lift
      + Revert dmsetup downgrade (LP #2073622)
      + d/control: allow older dmsetup
      [cancel each other out]
    - d/t/{control,initramfs}: fix initramfs dep8 test
      [merged with "determine extracted main cpio path dynamically"]
  [ Olivier Gayot ]
  * d/initramfs: fix multipathd process lingering when local-* initramfs
    scripts are not executed. The multipathd process is started by a script in
    init-top/ (which is executed unconditionally) so it should be
    stopped by an init-bottom script, not a local-bottom script which is
    not always executed (LP: #2080474).
    - This is affecting the Ubuntu installer, where we execute (perhaps
      accidentally) the nfs-* scripts instead of the local-* scripts.

 -- Jonas Jelten <jonas.jelten at canonical.com>  Wed, 23 Jul 2025 12:06:34
+0200

** Changed in: multipath-tools (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/2080474

Title:
  ubuntu installation failing for systems having SAN disk

Status in subiquity:
  New
Status in The Ubuntu-power-systems project:
  Incomplete
Status in multipath-tools package in Ubuntu:
  Fix Released
Status in subiquity package in Ubuntu:
  New

Bug description:
  == Comment: - Anushree Mathur ==
  OS: 24.04 LTS (Noble Numbat)
  I started the Ubuntu installation for 24.04 LTS (Noble Numbat) on L1(HOST) having SAN disk, it failed with the following error just after I chose the disk.

  Ubuntu 24.04 LTS ubuntu-server hvc0

  
  connecting...  
  waiting for cloud-init...  
  generating crash report
  report saved to /var/crash/1724388235.797082424.ui.crash
  Traceback (most recent call last):
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/client/controllers/filesystem.py", line 273, in _guided_choice
      self.ui.set_body(FilesystemView(self.model, self))
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/filesystem.py", line 485, in __init__
      self.refresh_model_inputs()
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/filesystem.py", line 540, in refresh_model_inputs
      self.avail_list.refresh_model_inputs()
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/filesystem.py", line 417, in refresh_model_inputs
      for obj, cells in summarize_device(device, filter):
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/ui/views/filesystem/helpers.py", line 32, in summarize_device
      anns = labels.annotations(device) + labels.usage_labels(device)
    File "/snap/subiquity/5745/usr/lib/python3.10/functools.py", line 889, in wrapper
      return dispatch(args[0].__class__)(*args, **kw)
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/common/filesystem/labels.py", line 100, in _annotations_vg
      member = next(iter(vg.devices))
  StopIteration

  The above exception was the direct cause of the following exception:

  Traceback (most recent call last):
    File "/snap/subiquity/5745/usr/bin/subiquity", line 8, in <module>
      sys.exit(main())
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/cmd/tui.py", line 158, in main
      asyncio.run(run_with_loop())
    File "/snap/subiquity/5745/usr/lib/python3.10/asyncio/runners.py", line 44, in run
      return loop.run_until_complete(main)
    File "/snap/subiquity/5745/usr/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete
      return future.result()
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/cmd/tui.py", line 156, in run_with_loop
      await subiquity_interface.run()
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquity/client/client.py", line 403, in run
      await super().run()
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquitycore/tui.py", line 351, in run
      await super().run()
    File "/snap/subiquity/5745/lib/python3.10/site-packages/subiquitycore/core.py", line 134, in run
      raise exc
  RuntimeError: coroutine raised StopIteration

  Ubuntu 24.04 LTS ubuntu-server hvc0

  
  connecting...  
  ProblemType: Bug
  Architecture: ppc64el
  CrashDB: {'impl': 'launchpad', 'project': 'subiquity'}

  I tried following 2 installation methods, it is failing in both the ways: 
  1) kexec method
  2) attaching vdvd and starting installer

  NOTE: It is happening only when the system has SAN disks otherwise this installation worked fine.
  I will be attaching the crash report for this!

  == Comment:- Hariharan T S ==
  Verified the following cases. 
  Installation on Disk from VIOS  - PASSED
  Installatoin on Disk from VIOS and system had Disks from SAN - FAILED
  Installation on Disk from SAN and system ahd Disk from VIOS - FAILED

  == Comment:- Vaibhav Jain ==
  Problem seems to happening when Subuquity enters the disk partition view. The system has a SAN disk and an existing Mullti Path DM volume on it.

  Mirroring to distro

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