Re: How to Boot 2nd drive?

[shoppa@alph02.triumf.ca (Tim Shoppa)]

In article <01bbc414$847264a0$d71d6682@130.102.2.10.130.102.29.215>,
David Colston <david@email-one.com> wrote:
>G'day
>
>My father bought an AppleIIe (I think) which has a dual disk drive sitting
>on top of it.
>
>The problem is he can't work out how to boot the second drive.
>
>On his AppleII europlus to boot the drive he typed pr#6.  This worked with
>the IIe as well to boot Drive 1.
>
>How can you boot Drive2?

With great difficulty. :-).  Well, it's actually rather quite
straightforward if you're used to directly accessing the disk
drive from machine language and comfortable with programming
bipolar PROM's:

 You can change all the references in the Disk ][ Boot ROM to have
 it select the second drive instead of the first.  To blow a copy
 of this modified boot ROM you'll need a bipolar PROM programmer, about
 US$500-$600 these days.  Then you have to
 modify the boot blocks of DOS 3.3 or ProDOS on your boot floppy so
 that it will properly reference Drive 2 rather than drive 1.  Then
 it will work, but you'll no longer be able to boot from Drive 1.

If all he wants to do is look at the contents of a floppy in the 2nd drive
(I think this is what he really wants), commands like
"CATALOG,D2" and "LOAD HELLO,D2" will make him happy.

Tim. (shoppa@triumf.ca)