in terminal as root these are the commands used and here is the print out.
~# apt-get update && apt-get upgrade -y
Ign http://extras.ubuntu.com precise InRelease
Ign http://ftp.halifax.rwth-aachen.de precise InRelease
Ign http://ftp.halifax.rwth-aachen.de precise-updates InRelease
Ign http://ftp.halifax.rwth-aachen.de precise-security InRelease
Get:1 http://ftp.halifax.rwth-aachen.de precise Release.gpg [198 B]
Ign http://archive.canonical.com precise InRelease
Get:2 http://extras.ubuntu.com precise Release.gpg [72 B]
Ign http://dl.google.com stable InRelease
Hit http://extras.ubuntu.com precise Release
Get:3 http://ftp.halifax.rwth-aachen.de precise-updates Release.gpg [198 B]
Get:4 http://ftp.halifax.rwth-aachen.de precise-security Release.gpg [198 B]
Hit http://archive.canonical.com precise Release.gpg
Get:5 http://dl.google.com stable Release.gpg [198 B]
Get:6 http://ftp.halifax.rwth-aachen.de precise Release [49.6 kB]
Hit http://archive.canonical.com precise Release
Get:7 http://dl.google.com stable Release [1,349 B]
Get:8 http://ftp.halifax.rwth-aachen.de precise-updates Release [49.6 kB]
Get:9 http://ftp.halifax.rwth-aachen.de precise-security Release [49.6 kB]
Hit http://extras.ubuntu.com precise/main Sources
Hit http://archive.canonical.com precise/partner Sources
Get:10 http://dl.google.com stable/main amd64 Packages [633 B]
Get:11 http://ftp.halifax.rwth-aachen.de precise/main Sources [934 kB]
Hit http://extras.ubuntu.com precise/main amd64 Packages
Hit http://extras.ubuntu.com precise/main i386 Packages
Hit http://archive.canonical.com precise/partner amd64 Packages
Hit http://archive.canonical.com precise/partner i386 Packages
Ign http://archive.canonical.com precise/partner TranslationIndex
Get:12 http://dl.google.com stable/main i386 Packages [639 B]
Ign http://dl.google.com stable/main TranslationIndex
Ign http://extras.ubuntu.com precise/main TranslationIndex
Ign http://archive.canonical.com precise/partner Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://archive.canonical.com precise/partner Translation-en
Ign http://extras.ubuntu.com precise/main Translation-en
Ign http://dl.google.com stable/main Translation-en_US
Ign http://dl.google.com stable/main Translation-en
Get:13 http://ftp.halifax.rwth-aachen.de precise/restricted Sources [5,470 B]
Get:14 http://ftp.halifax.rwth-aachen.de precise/universe Sources [5,019 kB]
Get:15 http://ftp.halifax.rwth-aachen.de precise/multiverse Sources [155 kB]
Get:16 http://ftp.halifax.rwth-aachen.de precise/main amd64 Packages [1,273 kB]
Get:17 http://ftp.halifax.rwth-aachen.de precise/restricted amd64 Packages [8,452 B]
Get:18 http://ftp.halifax.rwth-aachen.de precise/universe amd64 Packages [4,786 kB]
Get:19 http://ftp.halifax.rwth-aachen.de precise/multiverse amd64 Packages [119 kB]
Get:20 http://ftp.halifax.rwth-aachen.de precise/main i386 Packages [1,274 kB]
Get:21 http://ftp.halifax.rwth-aachen.de precise/restricted i386 Packages [8,431 B]
Get:22 http://ftp.halifax.rwth-aachen.de precise/universe i386 Packages [4,796 kB]
Get:23 http://ftp.halifax.rwth-aachen.de precise/multiverse i386 Packages [121 kB]
Hit http://ftp.halifax.rwth-aachen.de precise/main TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise/multiverse TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise/restricted TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise/universe TranslationIndex
Get:24 http://ftp.halifax.rwth-aachen.de precise-updates/main Sources [25.0 kB]
Get:25 http://ftp.halifax.rwth-aachen.de precise-updates/restricted Sources [765 B]
Get:26 http://ftp.halifax.rwth-aachen.de precise-updates/universe Sources [8,304 B]
Get:27 http://ftp.halifax.rwth-aachen.de precise-updates/multiverse Sources [696 B]
Get:28 http://ftp.halifax.rwth-aachen.de precise-updates/main amd64 Packages [68.3 kB]
Get:29 http://ftp.halifax.rwth-aachen.de precise-updates/restricted amd64 Packages [757 B]
Get:30 http://ftp.halifax.rwth-aachen.de precise-updates/universe amd64 Packages [21.9 kB]
Get:31 http://ftp.halifax.rwth-aachen.de precise-updates/multiverse amd64 Packages [1,142 B]
Get:32 http://ftp.halifax.rwth-aachen.de precise-updates/main i386 Packages [69.6 kB]
Get:33 http://ftp.halifax.rwth-aachen.de precise-updates/restricted i386 Packages [770 B]
Get:34 http://ftp.halifax.rwth-aachen.de precise-updates/universe i386 Packages [22.1 kB]
Get:35 http://ftp.halifax.rwth-aachen.de precise-updates/multiverse i386 Packages [1,393 B]
Hit http://ftp.halifax.rwth-aachen.de precise-updates/main TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise-updates/multiverse TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise-updates/restricted TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise-updates/universe TranslationIndex
Get:36 http://ftp.halifax.rwth-aachen.de precise-security/main Sources [7,089 B]
Get:37 http://ftp.halifax.rwth-aachen.de precise-security/restricted Sources [14 B]
Get:38 http://ftp.halifax.rwth-aachen.de precise-security/universe Sources [3,653 B]
Get:39 http://ftp.halifax.rwth-aachen.de precise-security/multiverse Sources [696 B]
Get:40 http://ftp.halifax.rwth-aachen.de precise-security/main amd64 Packages [32.9 kB]
Get:41 http://ftp.halifax.rwth-aachen.de precise-security/restricted amd64 Packages [14 B]
Get:42 http://ftp.halifax.rwth-aachen.de precise-security/universe amd64 Packages [8,581 B]
Get:43 http://ftp.halifax.rwth-aachen.de precise-security/multiverse amd64 Packages [1,142 B]
Get:44 http://ftp.halifax.rwth-aachen.de precise-security/main i386 Packages [32.9 kB]
Get:45 http://ftp.halifax.rwth-aachen.de precise-security/restricted i386 Packages [14 B]
Get:46 http://ftp.halifax.rwth-aachen.de precise-security/universe i386 Packages [8,594 B]
Get:47 http://ftp.halifax.rwth-aachen.de precise-security/multiverse i386 Packages [1,393 B]
Hit http://ftp.halifax.rwth-aachen.de precise-security/main TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise-security/multiverse TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise-security/restricted TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise-security/universe TranslationIndex
Hit http://ftp.halifax.rwth-aachen.de precise/main Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise/multiverse Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise/restricted Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise/universe Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-updates/main Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-updates/multiverse Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-updates/restricted Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-updates/universe Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-security/main Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-security/multiverse Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-security/restricted Translation-en
Hit http://ftp.halifax.rwth-aachen.de precise-security/universe Translation-en
Fetched 19.0 MB in 30s (623 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up samba4 (4.0.0~alpha18.dfsg1-4ubuntu2) ...
Unknown parameter encountered: "max log size"
Ignoring unknown parameter "max log size"
Unknown parameter encountered: "syslog"
Ignoring unknown parameter "syslog"
Unknown parameter encountered: "unix password sync"
Ignoring unknown parameter "unix password sync"
Unknown parameter encountered: "passwd program"
Ignoring unknown parameter "passwd program"
Unknown parameter encountered: "pam password change"
Ignoring unknown parameter "pam password change"
Unknown parameter encountered: "map to guest"
Ignoring unknown parameter "map to guest"
Unknown parameter encountered: "usershare allow guests"
Ignoring unknown parameter "usershare allow guests"
Unknown parameter encountered: "username map"
Ignoring unknown parameter "username map"
Unknown parameter encountered: "guest ok"
Ignoring unknown parameter "guest ok"
Unknown parameter encountered: "guest ok"
Ignoring unknown parameter "guest ok"
ERROR: Invalid smb.conf
Unknown parameter encountered: "max log size"
Ignoring unknown parameter "max log size"
Unknown parameter encountered: "syslog"
Ignoring unknown parameter "syslog"
Unknown parameter encountered: "unix password sync"
Ignoring unknown parameter "unix password sync"
Unknown parameter encountered: "passwd program"
Ignoring unknown parameter "passwd program"
Unknown parameter encountered: "pam password change"
Ignoring unknown parameter "pam password change"
Unknown parameter encountered: "map to guest"
Ignoring unknown parameter "map to guest"
Unknown parameter encountered: "usershare allow guests"
Ignoring unknown parameter "usershare allow guests"
Unknown parameter encountered: "username map"
Ignoring unknown parameter "username map"
Unknown parameter encountered: "guest ok"
Ignoring unknown parameter "guest ok"
Unknown parameter encountered: "guest ok"
Ignoring unknown parameter "guest ok"
ERROR: Invalid smb.conf
/var/lib/dpkg/info/samba4.postinst: 14: /var/lib/dpkg/info/samba4.postinst: /usr/share/samba/setoption.pl: Permission denied
dpkg: error processing samba4 (--configure):
subprocess installed post-installation script returned error exit status 126
E: Sub-process /usr/bin/dpkg returned an error code (1)
ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: samba4 4.0.0~alpha18.dfsg1-4ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu7
AptOrdering: samba4: Configure
Architecture: amd64
Date: Thu May 10 17:04:31 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 126
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
SourcePackage: samba4
Title: package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 126
UpgradeStatus: Upgraded to precise on 2012-05-04 (5 days ago)
