I am so excited because I just finished fixing my disk ii drive that came with my II plus. I've been using an SD adapter all this time but I can finally run software right off the disk! To test it I've run a ton if utility software that give me good readings all over. The problem was that it was clogged with 35 years of goo. Everywhere. Once that was gone it works like a charm! I can read and wrote saves in Ultima I. Only issue I have now, is lack of Apple II knowledge. I like to have my SD adapter in slot 1 of my Disk II interface. How can I boot from drive 2 if I put in a floppy? By default my II Plus seems to look in drive one and nothing else. What is the command (if any) to specifically request that it boots from Drive 2? Thanks.