package libc6 2.15-0ubuntu10.2 [modified: usr/share/doc/libc6/changelog.Debian.gz] failed to install/upgrade: libc6:amd64 2.15-0ubuntu10.2 cannot be configured because libc6

No consigo corregirlo con synaptic. Siempre me dice que está roto. No sé cómo eliminarlo para reinstalarlo. Synaptic no lo consigue.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libc6 2.15-0ubuntu10.2 [modified: usr/share/doc/libc6/changelog.Debian.gz]
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
Uname: Linux 3.2.0-32-generic x86_64
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
Date: Sat Oct 6 21:21:17 2012
ErrorMessage: libc6:amd64 2.15-0ubuntu10.2 cannot be configured because libc6
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: eglibc
Title: package libc6 2.15-0ubuntu10.2 [modified: usr/share/doc/libc6/changelog.Debian.gz] failed to install/upgrade: libc6:amd64 2.15-0ubuntu10.2 cannot be configured because libc6
UpgradeStatus: No upgrade log present (probably fresh install)