[Coco] Disk drive question

[Bill Pierce]

That would explain it jumping back to DECB. I know the docs and all for the Disto 2 meg are in the archives, maybe the info is there

thanx

Music from the Tandy/Radio Shack Color Computer 2 & 3 
https://sites.google.com/site/dabarnstudio/
Bill Pierce
ooogalapasooo at aol.com




-----Original Message-----
From: Bruce W. Calkins <brucewcalkins at charter.net>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Tue, Jan 17, 2012 9:42 pm
Subject: Re: [Coco] Disk drive question


IIRC; the 1 and 2 meg memory systems needed OS-9 patched to boot.
Bruce W.
=========================
----- Original Message ----- 
rom: "Bill Pierce"
> My drive on a Coco 3 with 2meg memory, Fd-502/J&M controller, with/without 
 multipak. 1 40trk DS, 1 80trk DS (tried switching drives and jumpers). The 
 drive will read and load an OS-9 level 1 system disk but when I try 
 (several) Os-9 level 2 boot dsks, it either freezes on "OS9 Boot" or 
 starts to boot then resets back to DECB. These boots are know to be good. 
 It also errors on sector 0000 when trying to format a disk. DECB seems to 
 format fine but I have no DECB disks handy to check. OS9 "backup" does not 
 seem to work. lists several errors as it formats, backup disks will not 
 boot afterwards. I've cleaned contacts and attempted to clean heads as 
 well as I could with a q-tip. I do bot have a 2nd coco to check for a bad 
 coco. It seems to be working fine. All commands work fine from the Level 1 
 boot.

 
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