I'm not sure I understand that question. You want legacy dingux and Opendingux on the same machine? If so, I believe i remember someone writing a script to do so in these forums, but I honestly cannot remember were. Otherwise the dual boot is meant to go between the Native software and whatever version of dingux you have installed. this is purely my opinion, but between advancements made in native programs and opendingux programs, there is no need for legacy dingux.