As I reported in bug # 860981 (a duplicate of this): To fix this bug, set the value 'realm =' to a valid value in smb.conf The failure occurred precisely because of that generated by the installation smb.conf leave this value blank.
After making this setting, just try to start the service. That done, with me it worked without problems. The parameter must be a valid domain. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/857394 Title: Samba 4 failed to update with ProvisioningError: guess_names: 'realm =' was not specified in supplied /etc/samba/smb.conf. Please remove the smb.conf file and let provision generate it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba4/+bug/857394/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs