[Bug 1992459] Re: [VROC] Installation is available on spare disk, but it fails

[Lukas Märdian]

Setting status to "Incomplete", while we're waiting for this test to be
confirmed.

** Changed in: subiquity (Ubuntu)
       Status: New => Incomplete

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Title:
  [VROC] Installation is available on spare disk, but it fails

Status in subiquity package in Ubuntu:
  Incomplete

Bug description:
  Found on Ubuntu 22.04.1

  Steps to reproduce:
  1. Create container in OS with one disk (to mark its state as spare)
  #mdadm --create /dev/md/imsm0 --metadata=imsm --raid-devices=1 /dev/nvmeXn1 –run
  2. Verify that target disk is marked as spare. Get its metadata by executing command:
  #mdadm --examine /dev/nvmeXn1
  and check its state in output. Expected data:
  State : spare
  3. Reboot to target OS installer.
  Note: Use VMD replacement driver if exists in tested build.
  4. Check if spare disk cannot be chosen as installation destination

  Expected result:
  Spare disk cannot be chosen as installation destination.

  Actual result:
  Spare disk can be chosen as installation destination.


  Additional info:
  Installation on chosen spare disk can be started, but error occurs few seconds after installation starts.

  Install log contains an error:
  mdadm: successfully stopped /dev/md127 after 1 attempt(s)
          Wiping mdadm member devices: ['/dev/nvme3n1']
          Running command ['mdadm', '--examine', '/dev/nvme3n1'] with allowed return codes [0] (capture=True)
          finish: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: FAIL: removing previous storage devices
          TIMED BLOCK_META: 1.765
          finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin command block-meta
          Traceback (most recent call last):
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/commands/main.py", line 202, in main
              ret = args.func(args)
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/log.py", line 97, in wrapper
              return log_time("TIMED %s: " % msg, func, *args, **kwargs)
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/log.py", line 79, in log_time
              return func(*args, **kwargs)
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 108, in block_meta
              meta_clear(devices, state.get('report_stack_prefix', ''))
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 1984, in meta_clear
              clear_holders.clear_holders(devices)
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 638, in clear_holders
              shutdown_function(dev_info['device'])
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 209, in shutdown_mdadm
              mdadm.zero_device(mddev, force=True)
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/mdadm.py", line 394, in zero_device
              metadata = mdadm_examine(devpath, export=False)
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/mdadm.py", line 254, in mdadm_examine
              data = __mdadm_detail_to_dict(out)
            File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/mdadm.py", line 630, in __mdadm_detail_to_dict
              raise ValueError('Duplicate key in mdadm regex parsing: ' + key)
          ValueError: Duplicate key in mdadm regex parsing: state
          Duplicate key in mdadm regex parsing: state

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