package samba4 (not installed) failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[drone27of1]

Binary package hint: samba4

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Description: Ubuntu 11.04
Release: 11.04

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Ubuntu Software Centre 4.0

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Samba4 to be installed and working

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Samba4 failed to install/upgrade

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: samba4 (not installed)
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: fglrx
AptOrdering:
 samba-tools: Remove
 samba4: Install
 samba4: Configure
Architecture: amd64
Date: Sat May 7 15:36:15 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
SourcePackage: samba4
Title: package samba4 (not installed) failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to natty on 2011-04-28 (9 days ago)