[Bug 1052834] Re: lucid upgrade to precise universe failed: Could not calculate the upgrade, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

[Victor Zhou]

** Attachment added: "bootstrap.log"
   https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1052834/+attachment/3323707/+files/bootstrap.log

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Title:
  lucid upgrade to precise universe failed: Could not calculate the
  upgrade,  pkgProblemResolver::Resolve generated breaks, this may be
  caused by held packages.

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

Bug description:
  ARCH: amd64

  Link to the test:   
  https://jenkins.qa.ubuntu.com/view/Precise/view/Upgrade%20Testing%20Dashboard/job/precise-upgrade-lucid-universe/ARCH=amd64,LTS=lts,PROFILE=universe,label=upgrade-test/

  Error: 
  2012-09-19 00:09:13,411 DEBUG updateSourcesList()
  2012-09-19 00:09:13,428 DEBUG rewriteSourcesList()
  2012-09-19 00:09:13,430 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu lucid main restricted universe'
  2012-09-19 00:09:13,430 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu precise main restricted universe' updated to new dist
  2012-09-19 00:09:13,430 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu lucid-security main restricted universe'
  2012-09-19 00:09:13,430 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu precise-security main restricted universe' updated to new dist
  2012-09-19 00:09:13,430 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu lucid-updates main restricted universe'
  2012-09-19 00:09:13,430 DEBUG entry 'deb http://archive.ubuntu.com/ubuntu precise-updates main restricted universe' updated to new dist
  2012-09-19 00:09:13,433 DEBUG running doUpdate() (showErrors=True)
  2012-09-19 00:09:17,616 DEBUG openCache()
  2012-09-19 00:09:17,616 DEBUG failed to SystemUnLock() (E:Not locked) 
  2012-09-19 00:09:19,386 DEBUG /openCache(), new cache size 38602
  2012-09-19 00:09:19,386 DEBUG needServerMode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
  2012-09-19 00:09:20,583 ERROR Could not calculate the upgrade 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. (None)
  2012-09-19 00:09:20,583 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'
  2012-09-19 00:09:20,583 DEBUG abort called
  2012-09-19 00:09:20,584 ERROR view.abort called
  2012-09-19 00:09:20,584 DEBUG openCache()
  2012-09-19 00:09:20,584 DEBUG failed to SystemUnLock() (E:Not locked) 
  2012-09-19 00:09:22,039 DEBUG /openCache(), new cache size 30590
  2012-09-19 00:09:22,041 DEBUG enabling apt cron job

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