[Coco] Help booting OS-9 L2

[Robert Gault]

Shawn Hedgecorth wrote:
> Hello everyone,
> I am having problems booting OS-9 L2. Today is the first time in 14 years
> that I have done anything with OS-9. I am using a 512K CoCo3 and a Disto
> SC-II. When I type DOS, it starts the boot process (OS-9 Boot screen is
> visible), the head moves a couple of tracks, and then nothing else seems to
> happen. The disk that is being used is a backup of a Tandy original. I kind
> of remember having a problem using L2 on a SC-II if the boot disk had not
> been patched (just vaguely remember that). I also have a J&M controller. The
> problem with the J&M controller is that the DOS command doesn't seem to work
> (I get a ?FN ERROR). I remembered that some of the early OS-9 games had a
> BASIC loader to start the OS9 Boot. I loaded one of the boot loader programs
>  put the OS-9 Boot disk in drive 0, type RUN, and it works just fine (on the
> J&M controller, not the Disto SC-II). I then created a new boot disk using
> the patch disk from Disto. When I try using the new boot disk, I am right
> back to square 1. What am I forgetting?
> 
> Shawn Hedgecorth
> 
> 

I don't remember ever having any problems with my 512K Coco3, the Disto 
SCII, and stock Tandy OS-9 LII. I suggest you make another backup of the 
system disk.