why do you need to install from df1: when u can use first df0: drive unless its broken, l tryed to get game working from eternal drive with my amiga 2000 because the first drive stoped booting game discs, with early startup screen just made the second external drive lower prriorty in the boot screen it worked for little while but then looked to the orginal internal drive. l oh by the way whn first got into cdroms l used a external cdrom ide just powered with pc psu all sitting on desk not ideal but does work remember with ide and standred 1200 port u have to keep ide cable very short, am not sure with buffered ide express l think its finewell must be because l ran internal ide cdrom and 3 1/2 ide inside the 1200 case it will fit . and had 2 1/2 to 3 1/2 cable which l think whould be the best solution for you . short term anyways