samba4 package errors during install

[C Pirnat]

Fresh install of 12.04.2 server edition trying to install samba4 fails with the following errors:

sudo apt-get install smamba4

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Reading package lists... Done

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Building dependency tree... 50%

Building dependency tree

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Reading state information... Done

Suggested packages:
  phpldapadmin samba-gtk swat2
The following NEW packages will be installed:
  samba4
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/1,649 kB of archives.
After this operation, 11.2 MB of additional disk space will be used.

Preconfiguring packages ...
Traceback (most recent call last):
  File "/usr/bin/samba-tool", line 26, in <module>
    from samba.netcmd.main import cmd_sambatool
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/main.py", line 24, in <module>
    from samba.netcmd.delegation import cmd_delegation
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/delegation.py", line 29, in <module>
    from samba.netcmd.common import _get_user_realm_domain
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/common.py", line 24, in <module>
    from samba.net import Net
ImportError: libkdc-policy.so: cannot open shared object file: No such file or directory
Traceback (most recent call last):
  File "/usr/bin/samba-tool", line 26, in <module>
    from samba.netcmd.main import cmd_sambatool
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/main.py", line 24, in <module>
    from samba.netcmd.delegation import cmd_delegation
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/delegation.py", line 29, in <module>
    from samba.netcmd.common import _get_user_realm_domain
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/common.py", line 24, in <module>
    from samba.net import Net
ImportError: libkdc-policy.so: cannot open shared object file: No such file or directory
Selecting previously unselected package samba4.
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(Reading database ... 78733 files and directories currently installed.)
Unpacking samba4 (from .../samba4_4.0.0~alpha18.dfsg1-4ubuntu2_i386.deb) ...
Processing triggers for man-db ...
Processing triggers for ureadahead ...
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
Errors were encountered while processing:
 samba4
E: Sub-process /usr/bin/dpkg returned an error code (1)
histo@histodc:~$ uname -a
Linux histodc 3.5.0-26-generic #42~precise1-Ubuntu SMP Mon Mar 11 22:19:42 UTC 2013 i686 i686 i386 GNU/Linux
histo@histodc:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise