frankl@xrtll.uucp (Frank Lemire) (07/28/90)
I have a (real) Apple Unidisk 3.5, and I also have the unidisk controller
card. now my problem is, that no matter where I put my two drive controller
cards (I have two 5.25s) my ][+ ALWAYS boots from the 5.25.
I've fixed this for the time being just by formatting the 5.25" with a
DOS 3.3 disk and just having the hello program boot slot #5 (my 3.5)
Can anyone suggest what I could do to fix this problem and have my ][+
boot the 3.5 first?
thanks!
zippo@contact.uucp -- or -- frankl@xrtll.uucp
!uunet.uu.net!contact!zippo
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4 --------------------------- !uunet.uu.net!contact!zippodlyons@Apple.COM (David A. Lyons) (07/30/90)
In article <1990Jul28.065320.8921@xrtll.uucp> frankl@xrtll.uucp (Frank Lemire) writes: >I have a (real) Apple Unidisk 3.5, and I also have the unidisk controller >card. now my problem is, that no matter where I put my two drive controller >cards (I have two 5.25s) my ][+ ALWAYS boots from the 5.25. > >I've fixed this for the time being just by formatting the 5.25" with a >DOS 3.3 disk and just having the hello program boot slot #5 (my 3.5) > >Can anyone suggest what I could do to fix this problem and have my ][+ >boot the 3.5 first? Your solution sounds pretty reasonable already. Short of re-burining your II+ monitor ROM, I don't have a better answer. There is a reason machines before the enhanced IIe don't automatically boot from SmartPort devices--I don't remember the details right now, but it's in a ProDOS 8 Technical Note or Apple II Miscellaneous TN somewhere. I believe it had to do with Apple II UCSD Pascal getting confused, thinking anything that looked just like a bootable 5.25 controller card must actually *be* one, so one of the ID bytes on the UniDisk card is different. ROMs in the enhanced IIe and later no longer check that last ID byte. -- David A. Lyons, Apple Computer, Inc. | DAL Systems Apple II Developer Technical Support | P.O. Box 875 America Online: Dave Lyons | Cupertino, CA 95015-0875 GEnie: D.LYONS2 or DAVE.LYONS CompuServe: 72177,3233 Internet/BITNET: dlyons@apple.com UUCP: ...!ames!apple!dlyons My opinions are my own, not Apple's.