[Coco] CocoSDC disk format

[Robert Gault]

Bob Devries wrote:
>
><snip>
> Currently the boot track is placed at offset $0264 sectors by the NitrOS9 build.
> This is correct for a single-sided disk. It boots correctly. All attempts by me
> so far to build a new boot track have failed. Also a new OS9Boot file appears to
> be ignored. This part I cannot understand.
>

How are you trying to build the new boot track? How did you build new OS9Boot 
files? If you are merging modules to create new OS9Boot files, you need to use 
ded to alter LSN0 so that bytes $15-$17 point to the first byte of the file and 
bytes $18-$19 indicate the size of the file.
Dir -e will give you the size of your new OS9Boot files but you can't use the 
location given by dir. You must use ded to go to the sector given by dir, find 
the actual start address, and check to see that the boot file is not fragmented.

Robert