[Bug 1121171] Re: update-manager crashed with AttributeError in update(): 'NoneType' object has no attribute 'saveDistUpgrade'

[Patrik Bubák]

*** This bug is a duplicate of bug 1119427 ***
    https://bugs.launchpad.net/bugs/1119427

I was re-directed to this bug report when I received a partial update
and my system cannot accept upgrades via the GUI for some time now. It
always says there are untrusted sources and the update fails. I've tried
all the known workarounds, the only one working is forcing an upgrade
via terminal.

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https://bugs.launchpad.net/bugs/1121171

Title:
  update-manager crashed with AttributeError in update(): 'NoneType'
  object has no attribute 'saveDistUpgrade'

Status in “update-manager” package in Ubuntu:
  Confirmed

Bug description:
  Total kernel panic when trying to do latest update to system.
  Total system failure.

  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: update-manager 1:0.181
  ProcVersionSignature: Ubuntu 3.8.0-2.6-generic 3.8.0-rc4
  Uname: Linux 3.8.0-2-generic x86_64
  ApportVersion: 2.8-0ubuntu4
  Aptdaemon:
   
  Architecture: amd64
  Date: Sun Feb 10 08:02:53 2013
  ExecutablePath: /usr/bin/update-manager
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'launch-time' b'1360504947'
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-height' b'315'
   b'com.ubuntu.update-manager' b'window-width' b'640'
  InstallationDate: Installed on 2012-10-23 (109 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  InterpreterPath: /usr/bin/python3.3
  MarkForUpload: True
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  PythonArgs: ['/usr/bin/update-manager', '--no-update', '--no-focus-on-map']
  SourcePackage: update-manager
  Title: update-manager crashed with AttributeError in update(): 'NoneType' object has no attribute 'saveDistUpgrade'
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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