AutoInstalls crashes when partitioning in 2020-04-17 server image

[Alfonso Sanchez-Beato]

In the 2020-04-17 image, autoinstalls crashes with this error:

finish: subiquity/InstallProgress/curtin_install: FAIL: Command '['systemd-cat', '--level-prefix=false', '--identifier=curtin_log.2222', '/snap/subiquity/1676/usr/bin/python3', '-m', 'curtin', '--showtrace', '-c', '/var/log/installer/subiquity-curtin-install.conf', 'install']' returned non-zero exit status 3.
start: subiquity/Error/1587137030.583958864.install_fail/add_info:
finish: subiquity/InstallProgress/apply_autoinstall_config: FAIL: Command '['systemd-cat', '--level-prefix=false', '--identifier=curtin_log.2222', '/snap/subiquity/1676/usr/bin/python3', '-m', 'curtin', '--showtrace', '-c', '/var/log/installer/subiquity-curtin-install.conf', 'install']' returned non-zero exit status 3.
generating crash report
start: subiquity/Error/1587137030.747231245.ui/add_info:
ERROR: hook /usr/share/apport/general-hooks/ubuntu.py crashed:
Traceback (most recent call last):
  File "/snap/subiquity/1676/usr/lib/python3/dist-packages/apport/report.py", line 218, in _run_hook
    symb['add_info'](report, ui)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 76, in add_info
    apport.hookutils.attach_casper_md5check(report,
ERROR: hook /usr/share/apport/general-hooks/ubuntu.py crashed:
Traceback (most recent call last):
  File "/snap/subiquity/1676/lib/python3.6/site-packages/subiquity/core.py", line 237, in run
    super().run()
  File "/snap/subiquity/1676/lib/python3.6/site-packages/subiquitycore/core.py", line 686, in run
    self.urwid_loop.run()
  File "/snap/subiquity/1676/usr/lib/python3/dist-packages/urwid/main_loop.py", line 286, in run
    self._run()
  File "/snap/subiquity/1676/usr/lib/python3/dist-packages/urwid/main_loop.py", line 384, in _run
    self.event_loop.run()
AttributeError: module 'apport.hookutils' has no attribute 'attach_casper_md5check'
  File "/snap/subiquity/1676/usr/lib/python3/dist-packages/urwid/main_loop.py", line 1484, in run
    reraise(*exc_info)
  File "/snap/subiquity/1676/usr/lib/python3/dist-packages/urwid/compat.py", line 57, in reraise
    raise value.with_traceback(tb)
  File "/snap/subiquity/1676/usr/lib/python3.6/asyncio/events.py", line 145, in _run
    self._callback(*self._args)
  File "/snap/subiquity/1676/lib/python3.6/site-packages/subiquitycore/async_helpers.py", line 26, in _done
    fut.result()
  File "/snap/subiquity/1676/lib/python3.6/site-packages/subiquity/controllers/installprogress.py", line 307, in install
    await self.curtin_install(context)
  File "/snap/subiquity/1676/lib/python3.6/site-packages/subiquity/controllers/installprogress.py", line 91, in decorated
    await meth(self, subcontext, *args)
  File "/snap/subiquity/1676/lib/python3.6/site-packages/subiquity/controllers/installprogress.py", line 287, in curtin_install
    self.logged_command(curtin_cmd), check=True)
  File "/snap/subiquity/1676/lib/python3.6/site-packages/subiquitycore/utils.py", line 85, in arun_command
    raise subprocess.CalledProcessError(proc.returncode, cmd)
subprocess.CalledProcessError: Command '['systemd-cat', '--level-prefix=false', '--identifier=curtin_log.2222', '/snap/subiquity/1676/usr/bin/python3', '-m', 'curtin', '--showtrace', '-c', '/var/log/installer/subiquity-curtin-install.conf', 'install']' returned non-zero exit status 3.

[Alfonso Sanchez-Beato (alfonsosanchezbeato)]

This was while following https://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls/QuickStart (same user-data).

[Michael Hudson-Doyle (mwhudson)]

Unfortunately there's not enough information here to understand what happened :( I guess I need to think about how to make reporting errors easier.

[Michael Hudson-Doyle (mwhudson)]

This turned out to be subiquity failing to deal with a smaller disk than it was expecting.