[Bug 874030] Re: package libc6 2.13-0ubuntu13 failed to install/upgrade: ErrorMessage: package libc6 is already installed and configured

[osprey]

This is something weird. I installed this machine around a month ago with a clean install of ubuntu 11.04. (via network install as this laptop does not have a cdrom)
The only third party software installed is an application to manage a hdspa usb modem, but I've checked in the software package (tar.gz) and there is no libc included.

I've then tried to upgrade the to 11.10 using the graphical update manager. The first try failed due to problem with the italian mirrror (the connection got dropped several times). I switched to another mirror and tried again and got a popup saying that the installation of libc have failed.
So I let the installation complete and then tried to reinstall the libc by hand, getting the error stated in the log below.
I can't track down from where the older libc come. Even the 11.04 release contained the 2.13 version of libc, so I can't explain how a 2.12 version was present on the system during the upgrade. 

I totally missed the old release number while I tried to debug the
problem, so in any case this seems to be a isolated weird case and not a
bug in the installer

** Changed in: eglibc (Ubuntu)
       Status: New => Invalid

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Title:
  package libc6 2.13-0ubuntu13 failed to install/upgrade: ErrorMessage:
  package libc6 is already installed and configured

Status in “eglibc” package in Ubuntu:
  Invalid

Bug description:
  While upgrading from ubuntu 11.04 to 11.10 I've got this error.
  I'll try to submit more informations as soon as the upgrade will finish

  ProblemType: Package
  DistroRelease: Ubuntu 11.10
  Package: libc6 2.13-0ubuntu13
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic i686
  ApportVersion: 1.23-0ubuntu3
  Architecture: i386
  Date: Fri Oct 14 11:22:43 2011
  ErrorMessage: ErrorMessage: package libc6 is already installed and configured
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  SourcePackage: dpkg
  Title: package libc6 2.13-0ubuntu13 failed to install/upgrade: ErrorMessage: package libc6 is already installed and configured
  UpgradeStatus: Upgraded to oneiric on 2011-10-14 (0 days ago)

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