package libc6 2.15-0ubuntu10.11 failed to install/upgrade: el subproceso script pre-installation nuevo devolvió el código de salida de error 1

[magda @ ubuntu]

A copy of the C library was found in an unexpected directory:
  '/lib/i386-linux-gnu/libc-2.15.so'
It is not safe to upgrade the C library in this situation;
please remove that copy of the C library or get it out of
'/lib/i386-linux-gnu' and try again.

dpkg: error al procesar /var/cache/apt/archives/libc6_2.15-0ubuntu10.12_i386.deb (--unpack):
 el subproceso script pre-installation nuevo devolvió el código de salida de error 1
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libc6 2.15-0ubuntu10.11
ProcVersionSignature: Ubuntu 3.2.0-79.115-generic 3.2.67
Uname: Linux 3.2.0-79-generic i686
ApportVersion: 2.0.1-0ubuntu17.8
Architecture: i386
Date: Sat May 23 17:27:18 2015
DuplicateSignature: package:libc6:2.15-0ubuntu10.11:el subproceso script pre-installation nuevo devolvió el código de salida de error 1
ErrorMessage: el subproceso script pre-installation nuevo devolvió el código de salida de error 1
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MarkForUpload: True
SourcePackage: eglibc
Title: package libc6 2.15-0ubuntu10.11 failed to install/upgrade: el subproceso script pre-installation nuevo devolvió el código de salida de error 1
UpgradeStatus: Upgraded to precise on 2015-04-25 (28 days ago)