[Bug 1197892] Re: do-release-upgrade crashed with AttributeError in distUpgrade(): 'SystemError' object has no attribute 'encode'

[Apport retracing service]

*** This bug is a duplicate of bug 1197889 ***
    https://bugs.launchpad.net/bugs/1197889

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1197889, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** Tags removed: need-duplicate-check

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

** Attachment removed: "ProcMaps.txt"
   https://bugs.launchpad.net/bugs/1197892/+attachment/3724794/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   https://bugs.launchpad.net/bugs/1197892/+attachment/3724795/+files/ProcStatus.txt

** This bug has been marked a duplicate of private bug 1197889

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https://bugs.launchpad.net/bugs/1197892

Title:
  do-release-upgrade crashed with AttributeError in distUpgrade():
  'SystemError' object has no attribute 'encode'

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Confirmed

Bug description:
  an upgrade want to remove unity and some required files like Xorg-***

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: ubuntu-release-upgrader-core 1:0.196
  ProcVersionSignature: Ubuntu 3.10.0-2.9-generic 3.10.0
  Uname: Linux 3.10.0-2-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.10.2-0ubuntu3
  Architecture: amd64
  CrashDB: ubuntu
  Date: Thu Jul  4 17:56:37 2013
  ExecutablePath: /usr/bin/do-release-upgrade
  InstallationDate: Installed on 2013-06-24 (10 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130623)
  InterpreterPath: /usr/bin/python3.3
  MarkForUpload: True
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/do-partial-upgrade --frontend=DistUpgradeViewGtk3
  PythonArgs: ['/usr/bin/do-release-upgrade', '--frontend=DistUpgradeViewGtk3']
  SourcePackage: ubuntu-release-upgrader
  Title: do-release-upgrade crashed with AttributeError in distUpgrade(): 'SystemError' object has no attribute 'encode'
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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