Comment 2 for bug 1308657

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Jean-Baptiste Lallement (jibel) wrote : Re: Ubuntu 13.10 to 14.04 desktop upgrade mandatory testcase failed with message 'An unresolvable problem occurred while calculating the upgrade.'

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.