Re: Prodos Error

[shack@deimos.frii.com (Randy Shackelford)]

In article <3314ef9b.4481209@167.152.149.11>,
Edhel Iaur, Esq. <drsmooth@relex.com> wrote:
>On 26 Feb 1997 22:59:11 GMT, lesherjt@vuse.vanderbilt.edu (Tilghman
>Lesher) wrote:
>
>>His disk is commonly known as a "slave" disk, since it contains
>>valid data, but cannot be booted.
>
>Didn't Apple's old DOS 3.3 book say that "slave" disks were ones that
>would only load on machines with a certain amount of memory, and that
>"master" disks would relocate themselves?

Close. Slave disks put DOS in a fixed location. So a 16K slave puts DOS in
the same place on a 16K or 48K system. A 48K slave won't boot with less
memory. One time my Apple ][ had a bad memory chip so the machine thought
it only had 32K. I got to wondering why my disks wouldn't boot. Then I
booted the system master and checked the page 3 vectors and saw that DOS
was in the 32K location. So I did the swap 'n test on the chips in the
back row until I found the bad one.

You use the MASTER CREATE program on the system master to convert a slave
to a master. Of course, it has other handy uses, like loading the DOS image
and writing DOS to an already formatted disk.
-- 
Randy Shackelford                                 
shack@frii.com