[Coco] Booting NitrOS-9 from MESS

Mike Rowen mike at bcmr3.net
Wed Sep 26 11:23:43 EDT 2012

I am using the 6809 L2 .dsk images from the NitrOS9 sourceforge site. I start mess with the two disks in flop1 & flop2. When I type DOS to boot, it simply returns to the DECB OK prompt, no errors.

On Sep 26, 2012, at 9:18 AM, Robert Gault <robert.gault at att.net> wrote:

> Mike Rowen wrote:
>> Hello all,
>> I have MESS 147s compiled and running under Linux. I can bring up the CoCo
>> 3 emulator and I can access disk images,
>> however I have run into the MESS boot bug for NitrOS-9. I have found
>> references to the bug, but not the fix. I know some
>> of you on the list are running NitrOS9 in MESS. Any help is appreciated.
>> Thanks!
>> Regards,
>> -Mike
> Any OS-9 disk image for MESS should use the .os9 extension. That should solve most problems.
> The current nightly build disk images for NitrOS-9 have bugs. The Level2 images seem to be based on Level3 since CoGrf is present instead of CoWin and CoVDG. Also the disk descriptors are bad in that there are 3 D0 and 2 DD in OS-9 boot.
> Which disks are you trying to boot? What information are you seeing on the screen? Are you trying to boot from "floppies" or .vhd images?
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