[Bug 1913732] Re: /usr/bin/update-manager:NotImplementedError:<lambda>:on_button_install_clicked:start_install:_start_pane:start:commit_oem

[Brian Murray]

** Changed in: update-manager (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1913732

Title:
  /usr/bin/update-
  manager:NotImplementedError:<lambda>:on_button_install_clicked:start_install:_start_pane:start:commit_oem

Status in update-manager package in Ubuntu:
  Fix Released
Status in update-manager source package in Focal:
  Fix Released

Bug description:
  [Impact]

  The latest focal SRU introduced a regression when trying to use a
  different backend than aptdaemon (i.e. synaptic).

  [Test Case]

  Run update-manager with UPDATE_MANAGER_FORCE_BACKEND_SYNAPTIC=1 and
  make sure no crash (with the traceback below) is encountered when
  trying to apply the updates.

  [Where problems can occur]

  TODO

  [Original Description]

  The Ubuntu Error Tracker has been receiving reports about a problem regarding update-manager.  This problem was most recently seen with package version 1:21.04.4, the problem page at https://errors.ubuntu.com/problem/eac836e467681c6b96247949de5b356d6c3da968 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

  Stack trace:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/UpdateManager/Dialogs.py", line 118, in <lambda>
      button.connect("clicked", lambda x: callback())
    File "/usr/lib/python3/dist-packages/UpdateManager/UpdatesAvailable.py", line 880, in on_button_install_clicked
      self.window_main.start_install()
    File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 234, in start_install
      self._start_pane(install_backend)
    File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 177, in _start_pane
      pane.start()
    File "/usr/lib/python3/dist-packages/UpdateManager/backend/__init__.py", line 59, in start
      self.commit_oem(pkgs_install_oem, pkgs_upgrade_oem)
    File "/usr/lib/python3/dist-packages/UpdateManager/backend/__init__.py", line 95, in commit_oem
      raise NotImplementedError
  NotImplementedError

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