[Bug 1158210] Re: can't upgrade from 10.04 to 12.04.2, "could not calculate the upgrade"

[Brian Murray]

The log files that you have attached indicate a failure to upgrade due
to an inability to calculate the upgrade:

Investigating (9) rhythmbox-data [ i386 ] < none -> 2.96-0ubuntu4.2 > ( gnome )
Broken rhythmbox-data:i386 Breaks on rhythmbox [ i386 ] < 0.12.8-0ubuntu7 -> 2.96-0ubuntu4.2 > ( gnome ) (< 2.90.1~git20111117.f101562-1)
  Considering rhythmbox:i386 14 as a solution to rhythmbox-data:i386 15
  Upgrading rhythmbox:i386 due to Breaks field in rhythmbox-data:i386

It appears that you have version of gnome installed from a PPA as
2.90.1~git20111117.f101562-1 does not appear in the official Ubuntu
archive.  The distribution upgrade process was subsequently unable to
calculate the upgrade.  I'd try reinstalling the official versions of
Ubuntu packages and then try upgrading again.  Good luck!

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1158210

Title:
  can't upgrade from 10.04 to 12.04.2, "could not calculate the upgrade"

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Invalid

Bug description:
  problem may be in the update manager (?)

  "Could not calculate the upgrade" error when trying to upgrade from
  10.04 to 12.04.2

  via 'apt-cache policy pkgname':  responded, "unable to locate package
  pkgname"

  I expected to upgrade to 12.04.2
  Instead it failed during "Setting new software channels" in the upgrade.

  013-03-21 16:34:46,287 ERROR IOError/SystemError in cache.update(): 'W:GPG error: http://download.virtualbox.org lucid InRelease: Unknown error executing gpgv, W:GPG error: http://packages.medibuntu.org lucid InRelease: Unknown error executing gpgv, W:GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6AF0E1940624A220, W:Failed to fetch http://ppa.launchpad.net/webapps/preview/ubuntu/dists/lucid/main/binary-i386/Packages  404  Not Found
  , E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 0)
  2013-03-21 16:34:46,287 ERROR doUpdate() failed completely


  ProblemType: BugDistroRelease: Ubuntu 10.04
  Package: update-manager 1:0.134.12.1
  ProcVersionSignature: Ubuntu 2.6.32-45.104-generic-pae 2.6.32.60+drm33.26
  Uname: Linux 2.6.32-45-generic-pae i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  Date: Thu Mar 21 16:37:10 2013
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=
   /apps/update-manager/first_run=false
   /apps/update-manager/show_versions=false
   /apps/update-manager/window_size=(600,600)InstallationMedia: Ubuntu 10.04.2 LTS "Lucid Lynx" - Release i386 (20110211.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bashSourcePackage: update-manager
  VarLogDistupgradeAptclonesystemstate.tar.gz: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
  VarLogDistupgradeTermlog:

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