[Coco] OS9 help needed.

Mike Delyea mdelyea at gmail.com
Sun Dec 23 11:38:12 EST 2018


If those disks are copies of the ORIGINAL Level II disks then they should
be single sided 35 track disks and should boot on a 35track ss or 40track
ds drive. The way I remember making 40track ds disks was to go through the
process of creating the normal 35track ss system disk and then put a copy
of dmode on it.  You then dmode to make the disk 40track ds and then
cobbler a new disk (I don't remember the exact dmode parameters - I'm sure
somebody else will).  Cobbler will make the new disk with the 40track ds
parameters you specified with dmode.  You'll have to manually copy the
system files over.  I recall getting dmode on a disk can be a bit of an
issue on a single drive system.

On Sun, Dec 23, 2018 at 7:33 AM Walter <zambotti at iinet.net.au> wrote:

> Hi
>
>
>
> I found my original OS9 Lvl 2 floppies.
>
>
>
> Can someone remind me how I can access a 40 track double sided floppy if
> the
> boot floppy
> is 35 track single sided?
>
>
>
> I tried loading the d40_ds.dd from the modules directory but of course it
> can't overwrite the
>
> /d0 module that is already in memory.
>
>
>
> If I os9gen the 33ss floppy with the d040_ds descriptor will it work
> correctly on the 35trk_ss media long enough
> for me to format a 40ds floppy?
>
>
>
> If feel like I'm stuck between the chicken and the egg!
>
>
>
> Walter
>
>
>
>
>
>
> --
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