[Coco] Any tips for getting OS-9 or Nitros-09 running in an emulator?

[tim lindner]

John Guin <johnguin at hotmail.com> wrote:

> Hello all,
> 
> Due to hardware restrictions with my actual Coco, I need to be able to boot
> OS-9 or Nitros-09 in an emulator.  I have MESS and the JV 2 and 3 emulators
> available, and actually have real copies of OS-9 Level 1 and 2 on floppies.
> 
> I want to be able to boot either of these emulators into any version of
> OS-9, but all the DSK images I have found on the net simply do not work.  As
> near as I can guess, all the emulators have the ROMs with "stock" RS DECB,
> which only work with 35 track drives, but all the DSK images are 40 track
> images, or are double sided.  I also tried the JV Coco3 "os9boot.mor" to
> coco3.rom with nitros - 09, but it didn't recognize the dsks.
> 
> Does anyone know of a trick/tip/kludge to get any of the emulators to boot
> the 40 track disks, or am I completely off in left field here?  Am I missing
> something blindingly obvious?  

I know a trick for MESS (only becuase I wrote it :). Change the .dsk
extension to .os9. This will cause MESS to read LSN 0 to determine the
geometry of the disk image.

-- 
tim lindner
tlindner at ix.netcom.com                                        Bright