[Bug 2081778] Re: curtin crash - "Couldn't find partition entry in table"

[Olivier Gayot]

I've merged many bug reports with similar symptoms to this bug report.
I'm not sure if they all have the same root cause though.

If you are one of the affected people, we'd be interested to know what
software you used to create the installation media. If you're using
Ventoy or another software that allows to "dynamically" boot the
installer, we'd be happy to know as well please.

Thanks!
Olivier

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Title:
  curtin crash - "Couldn't find partition entry in table"

Status in curtin:
  Triaged
Status in subiquity:
  Triaged

Bug description:
  Several users in private bugs have run into a common problem, where
  curtin fails to parse the initial storage configuration with the
  following error:

    File "/snap/ubuntu-desktop-installer/939/bin/subiquity/subiquity/server/controllers/filesystem.py", line 852, in _probe
      await asyncio.wait_for(self._probe_once_task.task, 90.0)
    File "/snap/ubuntu-desktop-installer/939/usr/lib/python3.10/asyncio/tasks.py", line 445, in wait_for
      return fut.result()
    File "/snap/ubuntu-desktop-installer/939/bin/subiquity/subiquitycore/context.py", line 148, in decorated_async
      return await meth(self, **kw)
    File "/snap/ubuntu-desktop-installer/939/bin/subiquity/subiquity/server/controllers/filesystem.py", line 834, in _probe_once
      self.model.load_probe_data(storage)
    File "/snap/ubuntu-desktop-installer/939/bin/subiquity/subiquity/models/filesystem.py", line 1548, in load_probe_data
      self.reset()
    File "/snap/ubuntu-desktop-installer/939/bin/subiquity/subiquity/models/filesystem.py", line 1131, in reset
      self._orig_config = storage_config.extract_storage_config(
    File "/snap/ubuntu-desktop-installer/939/lib/python3.10/site-packages/curtin/storage_config.py", line 1315, in extract_storage_config
      found_cfgs, found_errs = parser.parse()
    File "/snap/ubuntu-desktop-installer/939/lib/python3.10/site-packages/curtin/storage_config.py", line 634, in parse
      entry = self.asdict(data)
    File "/snap/ubuntu-desktop-installer/939/lib/python3.10/site-packages/curtin/storage_config.py", line 788, in asdict
      raise RuntimeError(
  RuntimeError: Couldn't find partition entry in table

  The issue can be reproduced with dry-run based on the ProbeData.txt in
  LP: #2017524 and presumably others.

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