I currently have a Ubuntu 12.04 server running Samba 4.0.0beta6 in our small development network and we are wanting to launch another Ubuntu box running the stable release of Samba 4. If I install the stable release of samba 4 and provision it against the 4.0.0beta6 samba PDC, will it gracefully copy all the existing users and machines? If not, is there database file that I can copy out which contains all the users and machines we currently have on the 4.0beta6 PDC? Thanks.