2022-07-03 05:12:34,411 INFO subiquity:148 Starting Subiquity server revision 511
2022-07-03 05:12:34,411 INFO subiquity:149 Arguments passed: ['/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/cmd/server.py', '--use-os-prober', '--autoinstall=']
2022-07-03 05:12:41,684 INFO root:37 start: subiquity/apply_autoinstall_config: 
2022-07-03 05:12:41,688 INFO root:37 finish: subiquity/apply_autoinstall_config: SUCCESS: 
2022-07-03 05:12:48,251 ERROR probert.multipath:38 Failed to run cmd: ['multipathd', 'show', 'maps', 'raw', 'format', '%w,%d,%N']
2022-07-03 05:12:48,253 ERROR probert.multipath:38 Failed to run cmd: ['multipathd', 'show', 'paths', 'raw', 'format', '%d,%z,%m,%N,%n,%R,%r,%a']
2022-07-03 05:12:57,258 ERROR probert.raid:40 Failed mdadm_assemble, mdadm command not found: [Errno 2] No such file or directory: 'mdadm'
2022-07-03 05:13:01,984 ERROR root:37 finish: subiquity/Filesystem/_probe/probe_once: FAIL: cancelled
2022-07-03 05:13:01,984 ERROR block-discover:460 block probing failed restricted=False
Traceback (most recent call last):
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/controllers/filesystem.py", line 454, in _probe
    await asyncio.wait_for(self._probe_once_task.task, timeout)
  File "/snap/ubuntu-desktop-installer/511/usr/lib/python3.8/asyncio/tasks.py", line 501, in wait_for
    raise exceptions.TimeoutError()
asyncio.exceptions.TimeoutError
2022-07-03 05:13:01,988 INFO subiquity.common.errorreport:406 saving crash report 'block probing crashed with TimeoutError' to /var/crash/1656825181.986498356.block_probe_fail.crash
2022-07-03 05:13:01,988 INFO root:37 start: subiquity/ErrorReporter/1656825181.986498356.block_probe_fail/add_info: 
2022-07-03 05:13:03,080 INFO root:37 finish: subiquity/ErrorReporter/1656825181.986498356.block_probe_fail/add_info: SUCCESS: written to /var/crash/1656825181.986498356.block_probe_fail.crash
2022-07-03 05:13:03,085 WARNING curtin:424 probe_data missing bcache data
2022-07-03 05:13:03,396 WARNING curtin:424 probe_data missing dasd data
2022-07-03 05:13:03,396 WARNING curtin:424 probe_data missing dmcrypt data
2022-07-03 05:13:03,396 WARNING curtin:424 probe_data missing filesystem data
2022-07-03 05:13:03,396 WARNING curtin:424 probe_data missing lvm data
2022-07-03 05:13:03,396 WARNING curtin:424 probe_data missing raid data
2022-07-03 05:13:03,396 WARNING curtin:424 probe_data missing mount data
2022-07-03 05:13:03,396 WARNING curtin:424 probe_data missing zfs data
2022-07-03 05:13:03,397 INFO curtin:1324 Validating extracted storage config components
2022-07-03 05:13:32,041 ERROR subiquity.server.controllers.refresh:177 checking for snap update failed
Traceback (most recent call last):
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/controllers/refresh.py", line 175, in check_for_update
    result = await self.app.snapd.get('v2/find', select='refresh')
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquitycore/snapd.py", line 180, in get
    response.raise_for_status()
  File "/snap/ubuntu-desktop-installer/511/lib/python3.8/site-packages/requests/models.py", line 1021, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 500 Server Error: Internal Server Error for url: http+unix://%2Frun%2Fsnapd.socket/v2/find?select=refresh
2022-07-03 05:14:28,088 ERROR root:37 finish: subiquity/Refresh/check_for_update: FAIL: cancelled
2022-07-03 05:14:59,859 INFO root:37 start: subiquity/Meta/status_GET: 
2022-07-03 05:14:59,859 INFO root:37 finish: subiquity/Meta/status_GET: SUCCESS: 200 {"state": "WAITING", "confirming_tty": "", "error": null, "cloud_init_ok": tr...
2022-07-03 05:14:59,860 INFO aiohttp.access:233  [03/Jul/2022:05:14:59 +0000] "GET /meta/status HTTP/1.1" 200 411 "-" "Dart/2.17 (dart:io)"
2022-07-03 05:14:59,875 INFO root:37 start: subiquity/Meta/mark_configured_POST: 
2022-07-03 05:14:59,876 INFO root:37 finish: subiquity/Meta/mark_configured_POST: SUCCESS: 200 null
2022-07-03 05:14:59,877 INFO aiohttp.access:233  [03/Jul/2022:05:14:59 +0000] "POST /meta/mark_configured?endpoint_names=%5B%22drivers%22,%22mirror%22,%22proxy%22,%22network%22,%22ssh%22,%22snaplist%22,%22ubuntu_pro%22%5D HTTP/1.1" 200 189 "-" "Dart/2.17 (dart:io)"
2022-07-03 05:14:59,878 ERROR subiquity.server.server:422 top level error
Traceback (most recent call last):
  File "/snap/ubuntu-desktop-installer/511/usr/lib/python3.8/asyncio/events.py", line 81, in _run
    self._context.run(self._callback, *self._args)
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquitycore/async_helpers.py", line 26, in _done
    fut.result()
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/controllers/mirror.py", line 141, in _apply_apt_config
    await self.apt_configurer.apply_apt_config(self.context)
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/apt.py", line 190, in apply_apt_config
    self.configured_tree = await self.setup_overlay([self.source])
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/apt.py", line 167, in setup_overlay
    lowerdir = lowerdir_for(lowers)
  File "/snap/ubuntu-desktop-installer/511/usr/lib/python3.8/functools.py", line 875, in wrapper
    return dispatch(args[0].__class__)(*args, **kw)
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/apt.py", line 92, in _lowerdir_for_lst
    return ':'.join(reversed([lowerdir_for(item) for item in lst]))
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/apt.py", line 92, in <listcomp>
    return ':'.join(reversed([lowerdir_for(item) for item in lst]))
  File "/snap/ubuntu-desktop-installer/511/usr/lib/python3.8/functools.py", line 875, in wrapper
    return dispatch(args[0].__class__)(*args, **kw)
  File "/snap/ubuntu-desktop-installer/511/bin/subiquity/subiquity/server/apt.py", line 70, in lowerdir_for
    raise NotImplementedError(x)
NotImplementedError: None
2022-07-03 05:14:59,880 INFO subiquity.common.errorreport:406 saving crash report 'unknown error crashed with NotImplementedError' to /var/crash/1656825299.879545689.unknown.crash
2022-07-03 05:14:59,880 INFO root:37 start: subiquity/ErrorReporter/1656825299.879545689.unknown/add_info: 
2022-07-03 05:14:59,881 INFO root:37 start: subiquity/Meta/status_GET: