package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 126

[David]

dad@dad-GA-880GM-D2H:~$ sudo apt-get install samba
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
  openbsd-inetd inet-superserver smbldap-tools ctdb
The following NEW packages will be installed:
  samba
0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
1 not fully installed or removed.
Need to get 0 B/8,042 kB of archives.
After this operation, 23.4 MB of additional disk space will be used.
Preconfiguring packages ...
Selecting previously unselected package samba.
(Reading database ... 162353 files and directories currently installed.)
Unpacking samba (from .../samba_2%3a3.6.3-2ubuntu2.3_amd64.deb) ...
Processing triggers for ufw ...
Processing triggers for ureadahead ...
Processing triggers for man-db ...
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: "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: "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
Setting up samba (2:3.6.3-2ubuntu2.3) ...
update-alternatives: using /usr/bin/smbstatus.samba3 to provide /usr/bin/smbstatus (smbstatus) in auto mode.
smbd start/running, process 5847
nmbd start/running, process 5883
Errors were encountered while processing:
 samba4
E: Sub-process /usr/bin/dpkg returned an error code (1)
dad@dad-GA-880GM-D2H:~$
dad@dad-GA-880GM-D2H:~$ lsb_release -rd
Description: Ubuntu 12.04.1 LTS
Release: 12.04
// Thanks //

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: samba4 4.0.0~alpha18.dfsg1-4ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35
Uname: Linux 3.2.0-36-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.1
AptOrdering: samba4: Configure
Architecture: amd64
Date: Sat Jan 26 08:17:55 2013
ErrorMessage: subprocess installed post-installation script returned error exit status 126
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
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 2013-01-26 (0 days ago)