[Bug 1022102] Re: Can not update the system. Get an error "Unable to mark upgrades."

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: apt (Ubuntu)
       Status: New => Confirmed

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Title:
  Can not update the system. Get an error "Unable to mark upgrades."

Status in “apt” package in Ubuntu:
  Confirmed

Bug description:
  When updating in the UI (Muon) I get an error dialog saying

  Unable to Mark Upgrades
  Not all packages could be marked for upgrade.
  ...

  Updating on the command line fails, too:

  sudo aptitude safe-upgrade
  Resolving dependencies...                
  Unable to resolve dependencies for the upgrade: no solution found.
  Unable to safely resolve dependencies, try running with --full-resolver.

  
  $ sudo aptitude safe-upgrade --full-resolver
  The following packages will be upgraded: 
    linux-generic linux-headers-generic{b} linux-image-generic{b} 
  3 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  Need to get 5,252 B/6,960 B of archives. After unpacking 0 B will be used.
  The following packages have unmet dependencies:
   linux-headers-generic : Depends: linux-headers-3.2.0-27-generic which is a virtual package.
   linux-image-generic : Depends: linux-image-3.2.0-27-generic which is a virtual package.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: muon-updater 1.3.1-0ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
  Uname: Linux 3.2.0-26-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu11
  Architecture: amd64
  Date: Sat Jul  7 09:38:47 2012
  ExecutablePath: /usr/bin/muon-updater
  InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101008)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: muon
  UpgradeStatus: Upgraded to precise on 2012-05-07 (61 days ago)

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