FWIW, I got this issue this morning when I logged into my desktop. In my case the problem was that installing a new kernel failed because there wasn't enough space in /boot (I have a really tiny /boot and this happens whenever I forget to purge old kernels).
Hope this helps! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unattended-upgrades in Ubuntu. https://bugs.launchpad.net/bugs/1052360 Title: unattended-upgrade crashed with SystemError: E:Sub-process /usr/bin/dpkg returned an error code (2) for an unknown reason Status in “unattended-upgrades” package in Ubuntu: Confirmed Bug description: Happens by itself ProblemType: Crash DistroRelease: Ubuntu 11.10 Package: unattended-upgrades 0.73ubuntu1.1 ProcVersionSignature: Ubuntu 3.0.0-26.42-generic 3.0.42 Uname: Linux 3.0.0-26-generic i686 ApportVersion: 1.23-0ubuntu4 Architecture: i386 Date: Tue Sep 18 09:24:15 2012 ExecutablePath: /usr/bin/unattended-upgrade InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) InterpreterPath: /usr/bin/python2.7 PackageArchitecture: all ProcCmdline: /usr/bin/python /usr/bin/unattended-upgrade ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/sh PythonArgs: ['/usr/bin/unattended-upgrade'] SourcePackage: unattended-upgrades Title: unattended-upgrade crashed with SystemError: E:Sub-process /usr/bin/dpkg returned an error code (2) Traceback: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (2) UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: mtime.conffile..etc.apt.apt.conf.d.50unattended.upgrades: 2012-08-24T13:58:31.952771 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1052360/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp