[Bug 874701] Re: Installer crashed with OSError: [Errno 17] File exists: '/target/opt' while upgrading

[Colin Watson]

*** This bug is a duplicate of bug 891711 ***
    https://bugs.launchpad.net/bugs/891711

Thanks for your report.  This looks like another instance of bug 891711.

** This bug has been marked a duplicate of bug 891711
   Fails to copy directory over symlink (e.g. /var/lock when downgrading from 11.10 to 11.04)

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https://bugs.launchpad.net/bugs/874701

Title:
  Installer crashed with OSError: [Errno 17] File exists: '/target/opt'
  while upgrading

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  I tried to upgrade from 11.04 to 11.10 using the update-manager. Then the process stopped for some reason. The screen was black and I could not switch to a text console. After a restart I tried to resume the upgrade from an installation USB stick when this error occured.
  I have chosen the "Update 11.10 -> 11.10" option.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: ubiquity 2.8.7
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic i686
  ApportVersion: 1.23-0ubuntu3
  Architecture: i386
  CasperVersion: 1.287
  Date: Sat Oct 15 02:05:32 2011
  LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  ProcEnviron:
   LANGUAGE=de_DE.UTF-8
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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