[Coco] Dual boot OS-9 CF image

Retro Canada retrocanada76 at gmail.com
Thu Oct 18 07:17:19 EDT 2012


i had to include sysgo because its a dual boot and the sysgo is not the same as level2 which is already on root dir. who calls it? i can change the default name and put it on root dir so it can coexists with level 2 sysgo.

is it krn? boot-ide? i need to find on source code

Sent from my iPhone

On 2012-10-18, at 4:04 AM, "Ken H." <dragon.atv at gmail.com> wrote:

> Thanks!
> I can confirm this CF image can be used to boot NitrOS9 on the Tano Dragon
> with SuperIDE, using the dual Dragon/Coco EPROMs.
> It should also work on a 64K CoCo2.
> 
> Your CF image will run on the Dragon as is, but the keyboard is garbled due
> to the Dragon's different keyboard wiring. All I had to do to have proper
> keyboard input is replace the vtio.dr module with the Dragon's vtio.dr
> module and run the mb.ide script.
> 
> The problem is that memory is too tight under Level1 with this
> configuration. I wasn't  able to run Dynacalc, even after eliminating the
> DW modules.
> Need to try and further trim the bootlist.
> Ken
> 
> 
> 
> On Wed, Oct 17, 2012 at 2:11 PM, Retro Canada <retrocanada76 at gmail.com>wrote:
> 
>> Hi all, as requested, follows the link for the image.
>> 
>> http://www.4shared.com/zip/1Y1S8dKA/ide.html?
>> 
>> It's a 276MB image, but if you don't have a bigger CF card, you can
>> just split it at the 245MB position and copy it to your 256Mb CF card.
>> Didn't test but maybe sidewalk will do it for you since it will stop
>> after the CF's end.]
>> 
>> So at the menu you can choose 1 for level 1 and 2 for level 2. There
>> are 4 boot images, the reason for that is to keep 2 SAFE MODE images
>> in case you screw a working ones.
>> 
>> 252 - SAFE level 1 boot
>> 253 - level 1 boot
>> 254 - SAFE level 2 boot
>> 255 - level 2 boot
>> 
>> I didn't test on coco2 (still don't have one but i'll put my hands on
>> a tandy 64k later this week). The level 1 will probably run out of
>> memory for any serious app. is up to you to change the
>> nitros9/6809l1/bootlists/superdriver_ide_32.bl and remove the non
>> desired modules. Probably you will need to get rid of DW3 and floppy
>> disks to be able to run something. Then run
>> nitros9/6809l1/scripts/mb.ide. it will write directly on drive image
>> 253 on cf card. (so no need for floppies or DW for that :) ) You
>> notice it will ask to press C several times, the reason for that is in
>> order to os9gen the SAME disk you are you need the option -S,
>> otherwise you get a "Disk ID Change" error.
>> 
> 
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