[Coco] Booting NitrOS-9 on a CoCo 3

N8WQ exwn8jef at gmail.com
Tue Mar 24 17:16:59 EDT 2009


Hi Darren,
Thanks for responding to my question so fast. Yes my CoCo 3 tower has a 
6309 cpu. I am using a Hitachi 63x09E with Cloud-9's "Pro-Tector".

So it looks like DSKINI is not formatting my disk properly? I tried 
using a 5.25" 360K floppy in my PC but I was getting errors when 
executing DSKINI. So I replaced that floppy drive on my PC with a 5.25" 
1.2meg floppy and I can now create 35 track, single sided disks no 
problem. Before I forget,  I need to mention that I am using MS-DOS 6.22 
on an old 386DX-33 PC that I bought at Goodwill about 4 years ago for 
$5.00  :)

I also noticed that there appears to be some discrepancy between DSKINI 
syntax and the DSKINI documentation on the NitrOS-9 site 
(http://www.nitros9.org/howto.html#dsk). For example this syntax does 
not work on my version of DSKINI:

DSKINI /T40 /D B: NOS963~1.DSK

"Unable to open specified virtual disk."

Here is the Usage that is listed if you type DSKINI by it's self at the 
DOS prompt:

"Usage: DSKINI [2] [8] [d:] [[path\diskname[.DSK]]
                "d:"             destination drive (default A:)
                "path"         source directory for virtual disk
                "diskname"  name of virtual disk
                /2                to write to the second side of the disk
                /8                if using an 80-track disk in 1.2Mb drive

At least one parameter must be specified."

Where is the "/T" and "/D" parameters coming from?

If I type "DSKINI B: NOS963~1.DSK
75 tracks are written but only head 0 is being used. If This image is 
double track shouldn't the format alternate between heads 0 and 1?

Alan Jones

-- 
N8WQ - Canal Winchester, Ohio
http://exwn8jef.googlepages.com/home



Darren A wrote:
> On 3/24/09, N8WQ wrote:
>   
>> Howdy folks,
>> Right now I have DECB 2.1 ROM in my floppy controller. Do I have to have
>> a patched DECB (double sided, 40 track) ROM in order to boot this disk
>> image?
>>
>> nos96309l2v030209coco3_40d_1.dsk
>>
>> I created this boot disk on my PC using DSKINI but the disk image will
>> not boot on my CoCo 3 tower. In my tower I have two 5.25" 360K floppy
>> drives. Thanks in advance.
>>
>>     
>
> ---
>
> You don't need a special ROM to boot NitrOS-9.  That particular image
> does require a 6309 CPU. Does your CoCo 3 tower have a 6309?
>
> Darren
>
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>   



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