[Coco] Disk drive question

Bruce W. Calkins brucewcalkins at charter.net
Wed Jan 18 17:18:54 EST 2012


Are you useing the new disk in the drive it was written in?  If a drive is 
out of alinement it should still read it's own disks.  Also, a disk written 
in an 80 track drive will not be readable on a 40 track drive.

Bruce W.

================================

----- Original Message ----- 
From: "Bill Pierce"

> The J&M controller & the 3 drives are the same ones Michael Knudson (it's 
> his old system) used for years while developing Ultimuse3. I also have an 
> FD-502 that I've tried. The system hadn't been used except an ocassional 
> boot up in over 10 years. Nothing in the system was changed and it booted 
> (minus the hard boot due to missing boot floppy) when I first recieved it. 
> As I was trying to figure out the system and what I had recieved, when 
> things slowly started to fail. Keyboard was first (dry rotted pads on the 
> Eagle keys) then the drives started to slowly fail. In DECB the computer 
> itself runs fine. I have even loaded in ML programs, Lyra for instance, 
> and they run as expected. DSKINI and BACKUP seem to work but when I go to 
> read the new disk, they error out. OS9 format shows errors while 
> formating. Sector 00 being a constant in the errors. Assuming sector 00 is 
> not writing, I would also assume sector 00 is not reading therefore boot 
> fails in OS9 Lv II. Does os9 lv I use sector 00 in it's boot as well?
>
>
> Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Bill Pierce
> ooogalapasooo at aol.com 




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