Public bug reported: I am also receiving an error message when I upgrade to a new version of Ubuntu
ProblemType: Package DistroRelease: Ubuntu 12.04 Package: aptitude 0.6.6-1ubuntu1.2 ProcVersionSignature: Ubuntu 3.2.0-105.146-generic-pae 3.2.79 Uname: Linux 3.2.0-105-generic-pae i686 ApportVersion: 2.0.1-0ubuntu17.13 AptOrdering: aptitude: Configure Architecture: i386 Date: Wed Jul 6 21:39:14 2016 DpkgTerminalLog: Setting up aptitude (0.6.6-1ubuntu1.2) ... update-alternatives: error: /var/lib/dpkg/alternatives/aptitude corrupt: invalid status dpkg: error processing aptitude (--configure): subprocess installed post-installation script returned error exit status 2 DuplicateSignature: package:aptitude:0.6.6-1ubuntu1.2:subprocess installed post-installation script returned error exit status 2 ErrorMessage: subprocess installed post-installation script returned error exit status 2 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) MarkForUpload: True SourcePackage: aptitude Title: package aptitude 0.6.6-1ubuntu1.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 UpgradeStatus: Upgraded to precise on 2016-06-30 (6 days ago) ** Affects: aptitude (Ubuntu) Importance: Undecided Status: New ** Tags: apport-package i386 precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1599624 Title: package aptitude 0.6.6-1ubuntu1.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/aptitude/+bug/1599624/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs