[Coco] Floppy drive/OS9 issue

[Carey Eugene]

Andrew;

> I am at a point in the project where I am verifying/checking-out a bunch 
> of OS-9 floppies. My main problem is that some of these disks are two 
> sided, and OS-9 L2 is complaining when I stick them in my drive, with an 
> error #249 "Wrong Type", which according to the manual may mean they are 
> double sided (one of the floppies was marked as double sided, so I am 
> assuming for now this is the problem). Other OS-9 floppies read OK.

Are you sure that the OS9 version you are using is set up for double sided 
disks?

If I remember right, and I readily admit that I may not, OS9 has to be 
explicitly told what kind of disk is expected in the floppy.  So a version 
of OS9 that is set up for single sided disks wouldn't be able to access 
double sided disks.  I think... (If I'm remembering wrong, I'm sure somebody 
will correct me.  OS9 was back from the dumb days of operating systems, 
where you have to tell it every detail of your hardware.  It can't figure 
anything out for itself.)

The point is, the disks you can access may be single sided.  And you might 
not be able to do the double sided ones because your copy of OS9 hasn't been 
told about them.

If you need it, I can send you a couple disk images of the dsdd 360k 
floppies I used back then.

Can't help you with the hardware, but I thought I'd mention the software 
issue.

Carey