Unpacking libldb1 (from .../libldb1_1%3a1.0.1~git20120220-1_amd64.deb) ...
Preparing to replace samba4-common-bin 4.0.0~alpha15~git20110124.dfsg1-2 (using .../samba4-common-bin_4.0.0~alpha15~git20110124.dfsg1-2ubuntu1_all.deb) ...
Unpacking replacement samba4-common-bin ...
Setting up libldb1 (1:1.0.1~git20120220-1) ...
Setting up ldb-tools (1:1.0.1~git20120220-1) ...
Setting up python-ldb (1:1.0.1~git20120220-1) ...
Setting up libsamba-hostconfig0 (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Setting up libdcerpc0 (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Setting up libsamba-util0 (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Setting up libsamdb0 (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Setting up libgensec0 (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Setting up libregistry0 (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Setting up python-samba (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Processing triggers for python-central ...
Setting up samba4-common-bin (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Setting up samba4 (4.0.0~alpha15~git20110124.dfsg1-2ubuntu1) ...
Installing new version of config file /etc/init.d/samba4 ...
Unknown parameter encountered: "max log size"
Ignoring unknown parameter "max log size"
Unknown parameter encountered: "syslog"
Ignoring unknown parameter "syslog"
Unknown parameter encountered: "passdb backend"
Ignoring unknown parameter "passdb backend"
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"
Unknown parameter encountered: "max log size"
Ignoring unknown parameter "max log size"
Unknown parameter encountered: "syslog"
Ignoring unknown parameter "syslog"
Unknown parameter encountered: "passdb backend"
Ignoring unknown parameter "passdb backend"
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"
module samba_dsdb initialization failed : No such object
Unable to load modules for /var/lib/samba/private/sam.ldb: dsdb_module_search_dn: did not find base dn @ROOTDSE (0 results)
Traceback (most recent call last):
  File "/usr/share/samba/setup/upgradeprovision", line 1597, in <module>
    ldbs = get_ldbs(paths, creds, session, lp)
  File "/usr/lib/python2.7/dist-packages/samba/upgradehelpers.py", line 159, in get_ldbs
    ldbs.sam = SamDB(paths.samdb, session_info=session, credentials=creds, lp=lp, options=["modules:samba_dsdb"])
  File "/usr/lib/python2.7/dist-packages/samba/samdb.py", line 53, in __init__
    options=options)
  File "/usr/lib/python2.7/dist-packages/samba/__init__.py", line 110, in __init__
    self.connect(url, flags, options)
  File "/usr/lib/python2.7/dist-packages/samba/samdb.py", line 66, in connect
    options=options)
_ldb.LdbError: (80, 'dsdb_module_search_dn: did not find base dn @ROOTDSE (0 results)')
dpkg: error processing samba4 (--configure):
 subprocess installed post-installation script returned error exit status 1