[Bug 787431] Re: Upgrade from 11.04 to 11.04 failed.

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*** This bug is a duplicate of bug 626775 ***
    https://bugs.launchpad.net/bugs/626775

Thank you for taking the time to report this crash and helping to make
Ubuntu better.  This particular crash has already been reported and is a
duplicate of bug #626775, 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

** Attachment removed: "Dependencies.txt"
   https://bugs.launchpad.net/bugs/787431/+attachment/2140670/+files/Dependencies.txt

** Attachment removed: "ProcMaps.txt"
   https://bugs.launchpad.net/bugs/787431/+attachment/2140671/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   https://bugs.launchpad.net/bugs/787431/+attachment/2140672/+files/ProcStatus.txt

** This bug has been marked a duplicate of private bug 626775

** Visibility changed to: Public

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https://bugs.launchpad.net/bugs/787431

Title:
  Upgrade from 11.04 to 11.04 failed.

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  Binary package hint: ubiquity

  I got my Laptop in 2008 with 7.10 pre-installed and have upgraded
  through all versions (including all betas since 8.10) until 11.04.
  Never had any greater complications (except for this last beta cycle,
  thanks to unity ;-) but now my system has become unstable mostly
  concerned with not returning from standby, even running into kernel
  panics. Since I just need to get on with my work, I decided it might
  be time to wipe the slate clean and re-install from scratch. I backed
  up my data and expected to format and re-install. I prepared a USB
  stick a the natty image downloaded from ubuntu.com.

  I was happy to see ubiquity offer me to  "Upgrade from 11.04 to 11.04"
  which meant keeping my home dir intact. So I opted for that option. I
  was asked for a new user name and was told that no existing users
  could be imported which I found odd since there are users on the
  installed system. The installer started showing me the slide show and
  the status was "Removing contending system files" (translated from
  German). Eventually a message box came up telling me that the
  installation had failed.

  ProblemType: Crash
  DistroRelease: Ubuntu 11.04
  Package: ubiquity 2.6.10
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  Architecture: i386
  Date: Tue May 24 10:54:02 2011
  ExecutablePath: /usr/share/ubiquity/install.py
  InterpreterPath: /usr/bin/python2.7
  LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  ProcCmdline: /usr/bin/python /usr/share/ubiquity/install.py
  ProcEnviron:
   LANGUAGE=de_DE.UTF-8
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   LC_COLLATE=C
  PythonArgs: ['/usr/share/ubiquity/install.py']
  SourcePackage: ubiquity
  Title: install.py crashed with AssertionError in __init__(): Failed to mount the target: /target
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: