If you try to create a schema when mnesia is started, instead of returning an error like "Mnesia is not stopped everywhere" you get "already_exists" as if there would already exist a schema on this node.
<br><br>example:<br>node1@host 1>mnesia:start().<br>ok<br>node1@host 2>mnesia:create_schema([node()]).<br>{error,{'node1@host',{already_exists,'node1@host'}}}