[Coco] Booting OS9 from Drive 1

[Gene Heskett]

On Sunday 04 October 2009, Derek wrote:
>I am having a problem being able to boot OS-9 in the following
> configuration. I have an FD-502 Drive housing with a 3.5" and a 5.25"
> drive. My 3.5" drive is set as drive 0 and my 5.25" is set as drive 1. I
> have some old 5.25" OS-9 based disks that need to boot using the DOS
> command. I switch to drive1 and then type DOS. It starts to load OS-9,
> goes to the Loading OS-9 Screen but will then automatically switch to
> drive 0 trying to access the boot data on drive 0 and not boot from the
> 5.25" disk in drive 1. I have tried using the drive1 command to set it as
> the boot drive but no luck.
>
>Is there an easy way to make it so I can boot off drive 1 and uses these
> old 5.25" OS-9 disks without having to make a backup on to a 3.5" drive
> for each disk I want to boot?
>
You could patch the boot module on track 34 & change the /d0 to /d1, but 
don't forget to set bit 8, so the hex 31 will be a hex b1.

>Thank you
>
>
>
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