Also, the dietpi software docs stating that the username and passowrd to be ‘root’ and ‘dietpi’ is no longer true this way.
Neither does any user named ‘root’ or ’ dietpi’ exists.
However, using this link http://XXX.XXX.XXX.XXX/ampache/install.php?action=show_create_account&htmllang=en_US&charset= will work to create a new admin account!