[Bug 780281] Re: Distribution upgrade from 10.10 to 11.04 fails

[dryphi]

Thank you for your detailed response and the suggestions. I imagine you
are correct in your assumption that it is those packages that caused it
to fail.

In the week or so between submitting this bug report and receiving a
response, I went ahead and did a clean install of 11.04 directly. So I
cannot comment as to whether these steps would have solved it. I suppose
you can consider this bug closed.

Thanks again for your help. If I have trouble in the future I will refer
back to this page.

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https://bugs.launchpad.net/bugs/780281

Title:
  Distribution upgrade from 10.10 to 11.04 fails

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

Bug description:
  Binary package hint: update-manager

  The update manager gives me the option to update to Natty Narwhal. When I click "Upgrade" it downloads the Distribution Upgrade tool, which proceeds to "prepare to upgrade". It then hangs on "Setting new software channels" for a good ten minutes or so, at which point I get the following error message:
  "An unresolvable problem occurred while calculating the upgrade:
  E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages."
  Screenshot attached.
  Also attached are the files at the location specified in the error message.

  Note that I have tried this a number of times, all with the same
  result. I first tried it before I had the latest 10.10 updates
  installed. I then installed these updates and tried again. I then
  rebooted and tried again.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: update-manager 1:0.142.23
  ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
  Uname: Linux 2.6.35-28-generic i686
  Architecture: i386
  Date: Mon May  9 23:32:23 2011
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  PackageArchitecture: all
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: update-manager

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