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

[Bernadette Mohr]

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
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
Errors were encountered while processing:
 samba4
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 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Sun Mar 24 12:33:18 2013
ErrorMessage: subprocess installed post-installation script returned error exit status 126
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
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 2012-11-22 (122 days ago)