[Bug 1308657] Re: Ubuntu 13.10 to 14.04 desktop upgrade mandatory testcase failed with message 'An unresolvable problem occurred while calculating the upgrade.'

[Jean-Baptiste Lallement]

Thanks for your report.

This part of apt.log looks bad.

Installing python-talloc as Dépend of samba-libs
  MarkInstall python-talloc [ i386 ] < none -> 2.1.0-1 > ( python ) FU=0
  Installing python as Dépend of python-talloc
    MarkInstall python [ i386 ] < none -> 2.7.5-5ubuntu3 > ( python ) FU=0
    Installing python2.7 as Dépend of python
      MarkInstall python2.7 [ i386 ] < none -> 2.7.6-8 > ( python ) FU=0
      Installing python2.7-minimal as Dépend of python2.7
        MarkInstall python2.7-minimal [ i386 ] < none -> 2.7.6-8 > ( python ) FU=0
         Removing: python2.7-minimal
          MarkDelete python2.7-minimal [ amd64 ] < 2.7.5-8ubuntu3.1 -> 2.7.6-8 > ( python ) FU=0
       Removing: python2.7
        MarkDelete python2.7 [ amd64 ] < 2.7.5-8ubuntu3.1 -> 2.7.6-8 > ( python ) FU=0
    Installing python-minimal as Dépend of python
      MarkInstall python-minimal [ i386 ] < none -> 2.7.5-5ubuntu3 > ( python ) FU=0
       Removing: python-minimal
        MarkDelete python-minimal [ amd64 ] < 2.7.5-5ubuntu1 -> 2.7.5-5ubuntu3 > ( python ) FU=0
    Installing libpython-stdlib as Dépend of python
      MarkInstall libpython-stdlib [ i386 ] < none -> 2.7.5-5ubuntu3 > ( python ) FU=0
     Removing: python
      MarkDelete python [ amd64 ] < 2.7.5-5ubuntu1 -> 2.7.5-5ubuntu3 > ( python ) FU=0
   Removing: python-talloc
    MarkDelete python-talloc [ amd64 ] < none -> 2.1.0-1 > ( python ) FU=0

apt tries (and fails ) to upgrade the full python:i386 stack because
libsmbclient:i386 is installed. Instead it should probably prefer the
native arch, upgrade amd64 packages and remove i386 ones.

Setting to confirmed.

** Changed in: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided => High

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

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https://bugs.launchpad.net/bugs/1308657

Title:
  Ubuntu 13.10 to 14.04: failed to upgrade libsmbclient:amd64 with
  libsmbclient:i386 installed.

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Triaged
Status in “ubuntu-release-upgrader” source package in Trusty:
  Triaged

Bug description:
  Occurs when calculating changes when using 'update-manager -d -c', as
  indicated in the testcase.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ubuntu-release-upgrader-core 1:0.205.5
  ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5
  Uname: Linux 3.11.0-19-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Apr 16 19:32:32 2014
  InstallationDate: Installed on 2012-06-23 (661 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-04-16 (0 days ago)
  VarLogDistupgradeTermlog:

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