For 6.5.4, you could ask for EEB associated with Service Request ET Number: 1940375.
via. this EEB, for media boot, we have attempted to do away with the need to enter the scsiLoadOrder manually.
Media boot now tries to emulate a part of network boot where we get the scsiLoadOrder from the master server before its too late to be of any use.
The prompt that would ask you if you want to enter the scsiLoadOrder manually is still there, but you can choose "N" or let it time out.