[Bug 1023525] Re: do-release-upgrade crashed with ImportError in /usr/lib/hostname-release-upgrader/check-new-release: No module named DistUpgrade.DistUpgradeVersion

[Brian Murray]

*** This bug is a duplicate of bug 1023055 ***
    https://bugs.launchpad.net/bugs/1023055

** This bug is no longer a duplicate of private bug 1023428
** This bug has been marked a duplicate of bug 1023055
   do-release-upgrade crashed with ImportError in /usr/lib/ubuntu-release-upgrader/check-new-release: No module named DistUpgrade.DistUpgradeVersion

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https://bugs.launchpad.net/bugs/1023525

Title:
  do-release-upgrade crashed with ImportError in /usr/lib/hostname-
  release-upgrader/check-new-release: No module named
  DistUpgrade.DistUpgradeVersion

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

Bug description:
  Hallo
  Testing ubuntu 20120711.2 .
  bott regularry, and the first screen appear, then as usual, black screen instead plymouth and ubiquity-dm.
  Only background appear with a mesage error of ubiquity showed telling that it encounter an inrecoverable error and the live session will be started, click on OK
  This message error popup at live session just started.
  Thanks
  Fabio

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: ubuntu-release-upgrader-core 1:0.170
  ProcVersionSignature: Ubuntu 3.5.0-4.4-generic 3.5.0-rc6
  Uname: Linux 3.5.0-4-generic x86_64
  ApportVersion: 2.3-0ubuntu4
  Architecture: amd64
  CasperVersion: 1.319
  Date: Wed Jul 11 17:04:24 2012
  ExecutablePath: /usr/bin/do-release-upgrade
  InterpreterPath: /usr/bin/python2.7
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120711.2)
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/lib/hostname-release-upgrader/check-new-release -q
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  PythonArgs: ['/usr/lib/hostname-release-upgrader/check-new-release', '-q']
  SourcePackage: ubuntu-release-upgrader
  Title: do-release-upgrade crashed with ImportError in /usr/lib/hostname-release-upgrader/check-new-release: No module named DistUpgrade.DistUpgradeVersion
  Traceback:
   Traceback (most recent call last):
     File "/usr/lib/hostname-release-upgrader/check-new-release", line 8, in <module>
       from DistUpgrade.DistUpgradeVersion import VERSION
   ImportError: No module named DistUpgrade.DistUpgradeVersion
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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