Under 10.7.0 Server I was able to activate the root user and I was able to login to my Mac Mini Server i7 as root. Now after I did the update to 10.7.1 Server, this capability has disappeared . I'm able to du a "su root" with the coresponding password, but I'm nomore able to login through the login window.
Just as an additional information. If I try to change the root password with the Directory Utility I get an error message in the system logfile, but not in the Directory Utility. The error is like the following line: changing root password failed: Error Domain=com.apple.OpenDirectory Code=5100 "This authentication method is not supported" --> This is a translation from the german output!!!
What's going wrong?