I'm running rc6, but it's not a clean installation, it's samba3 upgraded to 4.0 in ages of beta2. samba-tool ntacl sysvolcheck dies with message about incorrect acl on gpo, but that acl is set by sysvolreset. lobus at sirius-a:~$ sudo samba-tool ntacl sysvolcheck ERROR(<class 'samba.provision.ProvisioningError'>): uncaught exception - ProvisioningError: DB ACL on GPO directory /var/lib/samba/sysvol/shch8.brnv.rw/Policies/{6AC1786C-016F-11D2-945F-00C04FB984F9} O:LAG:DUD:P(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001f01ff;;;EA)(A;OICIIO;0x001f01ff;;;CO)(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001f01ff;;;SY)(A;OICI;0x001200a9;;;AU)(A;OICI;0x001200a9;;;ED) does not match expected value O:DAG:DUD:P(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001f01ff;;;EA)(A;OICIIO;0x001f01ff;;;CO)(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001f01ff;;;SY)(A;OICI;0x001200a9;;;AU)(A;OICI;0x001200a9;;;ED) from GPO object File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 175, in _run return self.run(*args, **kwargs) File "/usr/lib/python2.7/dist-packages/samba/netcmd/ntacl.py", line 245, in run lp) File "/usr/lib/python2.7/dist-packages/samba/provision/__init__.py", line 1576, in checksysvolacl direct_db_access) File "/usr/lib/python2.7/dist-packages/samba/provision/__init__.py", line 1527, in check_gpos_acl domainsid, direct_db_access) File "/usr/lib/python2.7/dist-packages/samba/provision/__init__.py", line 1477, in check_dir_acl raise ProvisioningError('%s ACL on GPO directory %s %s does not match expected value %s from GPO object' % (acl_type(direct_db_access), path, fsacl_sddl, acl))