[Bug 991610] [NEW] Cannot upgrade from 11.10 to 12.04.

[humble_coffee]

Public bug reported:

When trying to upgrade releases from 11.10 to 12.04 I get the following:

"An unresolvable problem occurred while calculating the upgrade:  
E:Unable to correct problems, you have held broken packages."

This happens when I use the graphical interface or run do-release-
upgrade in the terminal.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.25.9
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Mon Apr 30 12:30:37 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2012-04-30 (0 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade oneiric running-unity

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https://bugs.launchpad.net/bugs/991610

Title:
  Cannot upgrade from 11.10 to 12.04.

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

Bug description:
  When trying to upgrade releases from 11.10 to 12.04 I get the
  following:

  "An unresolvable problem occurred while calculating the upgrade:  
  E:Unable to correct problems, you have held broken packages."

  This happens when I use the graphical interface or run do-release-
  upgrade in the terminal.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: update-manager 1:0.152.25.9
  ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
  Uname: Linux 3.0.0-17-generic x86_64
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  Date: Mon Apr 30 12:30:37 2012
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to oneiric on 2012-04-30 (0 days ago)

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