[Coco] Nitros9 on a CC3 512k

Gene Heskett gene.heskett at verizon.net
Sun Feb 28 21:01:01 EST 2010


On Sunday 28 February 2010, George Ramsower wrote:
> Here's what I've done so far...
>
> I tried variations of Nitros9.... 40 and 80 track and single and double
>sided. None do any differently. Always a pretty root directory but none of
>the directories and the startup file are readable. .... error 247.
> Booting from the variations always lead to a hang up after the boot is
>completed..
>
> Huh?
>
>George
>
>>On Sunday 28 February 2010, George Ramsower wrote:
>>> Finally I get around to play with Nitros9, build a boot disk on my XP
>>> box using Cocodisk from nos96809l2v030208coco3_80d.dsk and it has a
>>> problem. First, I used cocodisk to format the 720K 3.5" disk with 80
>>> track, two sided. Then did the "Write to disk" to do this.
>>> The coco does boot and gets as far as the startup file and hangs.
>>> Rebooting with a working OS9 disk and looking at the Nitros9 disk
>>> reveals that the root directory appears to be intact but I cannot list
>>> the startup file or peer into the cmds directory. Error 247.
>>> I tried formatting a floppy on the coco and trying again but, with the
>>> same result.
>>>
>>> I would offer more info but don't what to tell you. Ask me questions and
>>> I will begin the discovery process as to why I'm getting this problem.
>>>
>>> Thanks,
>>>
>>>George
>
>On Sunday 28 February 2010, Gene Heskett wrote:
>>I have found that the default build does not properly identify the disk
>>images format, and have had to edit it with a hex editor, changing the
>> bytes at offset $10, and again at $41 I believe, to (if using the 80
>> track image, $07 at 10, and $03@$42).
>
> Beginning at $40, I see "OS9BOOT"
>
> I think this might be the wrong place to look with DED. Or I'm looking at
>the wrong thing.
>George

And we've got messages passing in the night, see my other replies.
;-)

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)

Finally, Zippy drives his 1958 RAMBLER METROPOLITAN into the faculty
dining room.



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