[Coco] Help with Nitros9 on SDC?

[Don Barber]

Hi folks, after giving up in frustration I've come back to look at this 
several months later. To jog memory: I was getting weird lockups trying 
to get NOS9 working and I was asked to try EOU. EOU Beta 5 boots for me, 
but Beta 6 and later fails to boot. Curtis looked at a video of my boot 
screen and pointed out Krnp2 did not load and asked if I'd modified the 
bootfiles (I had not, and confirmed with an md5sum of my disk image). 
All tests I run on my coco3 for memory, GIME, etc all come back as 
working fine.


So, back to it. I thought maybe if I could add in more debug statements 
here and there in the boot process, I could track down what was failing 
and where. To that end, I cloned the latest nos9 code tree from 
sourceforge (I just used the main branch...is there an EOU branch I'm 
not finding somewhere?), cross-compiled, it on Ubuntu Linux, and loaded 
it via drivewire. But lo and behold: everything seems to work fine as 
long as I stick to access just via DW.

But when I try to do anything involving the cocosdc, it seems to work 
for a second and then freeze up. For example, running just 'sdc' shows 
the file listing, but never returns to the prompt.

So...I'm starting to conclude that there is something wrong with my 
CocoSDC. I've tried different sdcards so I don't think thats it. Its 
weird that it seems to do everything with standard .dsk images I get 
from the Color Computer Archive just fine, but only acts weird in NOS9. 
But the SDC does seem to be the only common factor here.

As such, I have what may be an unusual request: may I borrow someone's 
known-working CocoSDC to see if the same behavior results? I will pay 
for shipping both ways.

Also, if anyone has any advice on getting the latest EOU 6.1 working 
purely via DW and not require a CocoSDC, that could be a good test too.

Thanks!

Don

On 4/30/21 11:58 PM, L. Curtis Boyle wrote:
> I am sorry, too… I am at a loss at this point. I am by no means a hardware expert. Hopefully someone who is can help.
>
> L. Curtis Boyle
> curtisboyle at sasktel.net
>
>
>
>> On Apr 30, 2021, at 9:54 PM, Don Barber <don at dgb3.net> wrote:
>>
>> No change in behavior. Appreciate the help.
>>
>> Don
>>
>> On 4/30/21 10:21 PM, L. Curtis Boyle wrote:
>>> If you hold down SHIFT when booting, does that make a difference?
>>>
>>> L. Curtis Boyle
>>> curtisboyle at sasktel.net
>>>
>>>
>>>
>>>> On Apr 30, 2021, at 8:10 PM, Don Barber <don at dgb3.net> wrote:
>>>>
>>>> Agree thats the simplest explanation, but I've tried 3-4 different 512k ram test software packages and they all come back as good.
>>>>
>>>> Don
>>>>
>>>> On 4/30/21 10:07 PM, L. Curtis Boyle wrote:
>>>>> Maybe some bad RAM, perhaps? The stock games (for the most part) will run in 128K, but EOU (since it preloads some things) definitely needs 512K.
>>>>>
>>>>> L. Curtis Boyle
>>>>> curtisboyle at sasktel.net
>