package samba4 4.0.0~alpha15~git20110124.dfsg1-2ubuntu1 failed to install/upgrade: ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1

[Franck]

Binary package hint: samba4

while upgrading from 10.10 to 11.04
The upgrade finally failed and i hope i'll be able to come back ! ;)

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: samba4 4.0.0~alpha15~git20110124.dfsg1-2ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Wed Jun 8 20:14:56 2011
ErrorMessage: ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
SourcePackage: samba4
Title: package samba4 4.0.0~alpha15~git20110124.dfsg1-2ubuntu1 failed to install/upgrade: ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
UpgradeStatus: Upgraded to natty on 2011-06-08 (0 days ago)