[Bug 894214] Re: "Could not calculate the upgrade" error when moving from 11.04 to 11.10

[Jean-Baptiste Lallement]

I'm unduplicating the duplicates. This is a generic error message that
may be due to completely different causes.

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https://bugs.launchpad.net/bugs/894214

Title:
  "Could not calculate the upgrade" error when moving from 11.04 to
  11.10

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

Bug description:
  This is Ubuntu 11.04 x64. When upgrading from 11.04 to 11.10, it first
  gives a "Some third-party packages disabled" warning, followed by the
  "Could not calculate the upgrade" error. The upgrade rolls back after
  then.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: update-manager 1:0.150.5
  ProcVersionSignature: Ubuntu 2.6.38-12.51-generic 2.6.38.8
  Uname: Linux 2.6.38-12-generic x86_64
  Architecture: amd64
  Date: Thu Nov 24 09:02:56 2011
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=
   /apps/update-manager/first_run=false
   /apps/update-manager/show_details=true
   /apps/update-manager/window_size=(600,600)
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_HK:en
   PATH=(custom, no user)
   LANG=en_HK.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to natty on 2011-11-24 (0 days ago)
  VarLogDistupgradeApttermlog:
   
  VarLogDistupgradeHistorylog:
   
  VarLogDistupgradeSystemstatetargz:
   
  VarLogDistupgradeTermlog:

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