[Coco] OS-9/68K raw disk access syntax

[Steven Hirsch]

On Fri, 1 Jan 2016, Joel Ewy wrote:

> On 01/01/2016 07:34 PM, David Ladd wrote:
>> 
>> I might be wrong, but if memory serves me I think the MM/1's OS-9/68K
>> formatted floppies sectors per track starts at 0 rather than 1 like some of
>> the older floppy formats use to be.  So may have to take that into
>> account.  Sadly I can't verify this at this time as my MM/1 is currently
>> packed away.​
>>

> You're right about that, as I've discovered.  I think that's causing me 
> a problem when trying to image the disks with 'dd' under LInux on a PC.

I know you are resistant to using ImageDisk, but it has no issues at all 
with non-standard sector numbering.  If you do not want to use a Microsoft 
product for diskette reading (and I don't really blame you), then I would 
think FreeDOS should fill the bill without paying The Bill.



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