[Bug 944962] Re: Could not calculate the upgrade on upgrade from 11.04 to 11.10

[Tim Black]

** Attachment added: "dist-upgrade.tar.gz"
   https://bugs.launchpad.net/bugs/944962/+attachment/2801867/+files/dist-upgrade.tar.gz

** Tags added: dist-upgrade

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Title:
  Could not calculate the upgrade on upgrade from 11.04 to 11.10

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

Bug description:
  I initially asked for help on this problem at
  http://askubuntu.com/questions/109210/could-not-calculate-the-upgrade-
  on-upgrade-from-11-04-to-11-10.

  I'm trying to upgrade from 11.04 to 11.10, but get this error:

  >    An unresolvable problem occurred while calculating the upgrade:
  E:Error, pkgProblemResolver::Resolve generated breaks, this may be
  caused by held packages.

  >    This can be caused by:
   * Upgrading to a pre-release version of Ubuntu
   * Running the current pre-release version of Ubuntu
   * Unofficial software packages not provided by Ubuntu

  >    If none of this applies, then please report this bug using the
  command 'ubuntu-bug update-manager' in a terminal.

  To attempt to fix this, I disabled all software sources not provided
  by Ubuntu, and I uninstalled all software not provided by Ubuntu in
  the Ubuntu Software Center. Synaptic tells me I still have
  natty/restricted nvidia-current, nvidia-glx-180, and nvidia-glx-185
  installed. Could these last packages be what is holding back the
  upgrade? I hesitate to uninstall them because I'm worried that doing
  so may significantly reduce my screen resolution. What can I do to
  find out what packages are holding back the upgrade?

  No packages are pinned so far as I know, which I researched as
  follows: dpkg --get-selections | grep hold returns nothing, and I
  created a custom filter in Synaptic for pinned packages and that
  filter shows no results also.

  aking1012 wrote,

  > Definitely turn off binary drivers during dist-upgrade and probably
  remove the packages.

  I followed aking1012's recommendations and disabled the binary nvidia
  drivers.  The result was that after logging out, I could not get back
  to Ubuntu's login screen.  So I rebooted in safe mode using the
  failsafe graphics option.  I tried running the upgrade to 11.10 from
  Ubuntu's Update Manager, and continue to get the same error listed
  above.

  Other requested info:

  1)  Ubuntu release

  tim at tim-laptop:~$ lsb_release -rd
  Description:	Ubuntu 11.04
  Release:	11.04

  2) Package version

  tim at tim-laptop:~$ apt-cache policy update-manager
  update-manager:
    Installed: 1:0.150.5.2
    Candidate: 1:0.150.5.2
    Version table:
   *** 1:0.150.5.2 0
          500 http://us.archive.ubuntu.com/ubuntu/ natty-updates/main i386 Packages
          500 http://us.archive.ubuntu.com/ubuntu/ natty-security/main i386 Packages
          100 /var/lib/dpkg/status
       1:0.150 0
          500 http://us.archive.ubuntu.com/ubuntu/ natty/main i386 Packages

  3)  I expected the upgrade to proceed without errors.

  4)  The upgrade failed with the error reported above.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: update-manager 1:0.150.5.2
  ProcVersionSignature: Ubuntu 2.6.38-13.56-generic 2.6.38.8
  Uname: Linux 2.6.38-13-generic i686
  Architecture: i386
  Date: Fri Mar  2 10:46:09 2012
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=oneiric
   /apps/update-manager/first_run=false
   /apps/update-manager/show_details=true
   /apps/update-manager/window_size=(630,1020)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to natty on 2012-03-02 (0 days ago)
  VarLogDistupgradeApttermlog:
   
  VarLogDistupgradeHistorylog:
   
  VarLogDistupgradeTermlog:

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