[Bug 1873728] Re: install on power server with excessive disks fails Invalid dep_id

[Mike Ranweiler]

** Package changed: debian-installer (Ubuntu) => subiquity (Ubuntu)

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Title:
  install on power server with excessive disks fails Invalid dep_id

Status in curtin:
  New
Status in subiquity:
  New
Status in The Ubuntu-power-systems project:
  New

Bug description:
  == Comment: #0 - Michael Ranweiler <mranweil at us.ibm.com> - 2020-04-17 17:21:49 ==
  We have a p9 boston with a number of multipath disks.  The install fails here before even configuring the storage.  There's no error displayed on screen before the error/report screen.  There's a lot of LVM volumes on the system, from the log file:
  2020-04-17 21:26:20,232 ERROR root:39 finish: subiquity/Filesystem/_probe/probe_once: FAIL: Invalid dep_id (disk-mpath-360050768028211d8b000000000000062) not in storage config
  2020-04-17 21:26:20,232 ERROR block-discover:151 block probing failed restricted=False
  Traceback (most recent call last):
    File "/snap/subiquity/1705/lib/python3.6/site-packages/subiquity/controllers/filesystem.py", line 144, in _probe
      self._probe_once_task.task, 15.0)
    File "/snap/subiquity/1705/usr/lib/python3.6/asyncio/tasks.py", line 358, in wait_for
      return fut.result()
    File "/snap/subiquity/1705/lib/python3.6/site-packages/subiquity/controllers/filesystem.py", line 124, in _probe_once
      self.model.load_probe_data(storage)
    File "/snap/subiquity/1705/lib/python3.6/site-packages/subiquity/models/filesystem.py", line 1556, in load_probe_data
      self.reset()
    File "/snap/subiquity/1705/lib/python3.6/site-packages/subiquity/models/filesystem.py", line 1274, in reset
      self._probe_data)["storage"]["config"]
    File "/snap/subiquity/1705/lib/python3.6/site-packages/curtin/storage_config.py", line 1317, in extract_storage_config
      tree = get_config_tree(cfg.get('id'), final_config)
    File "/snap/subiquity/1705/lib/python3.6/site-packages/curtin/storage_config.py", line 275, in get_config_tree
      for dep in find_item_dependencies(item, sconfig):
    File "/snap/subiquity/1705/lib/python3.6/site-packages/curtin/storage_config.py", line 245, in find_item_dependencies
      _validate_dep_type(item_id, dep_key, dep, config)
    File "/snap/subiquity/1705/lib/python3.6/site-packages/curtin/storage_config.py", line 193, in _validate_dep_type
      'Invalid dep_id (%s) not in storage config' % dep_id)
  ValueError: Invalid dep_id (disk-mpath-360050768028211d8b000000000000062) not in storage config
  2020-04-17 21:26:20,234 INFO subiquity.core:436 saving crash report 'block probing crashed with ValueError' to /var/crash/1587158780.234095097.block_probe_fail.crash

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