[Coco] partial OS9 boot from hard drive (back on topic)

George Ramsower Yahoo at DVDPlayersOnly.com
Sat Aug 27 10:04:00 EDT 2005


Verne,

  The way you describe it is probably the same as what I do on my main coco
system.....

  The default drive is /h0. That is set in the /dd descriptor.

  The floppy only contains OS9Boot and in the CMDS directory there is only
GRFDRV.

  Once the OS9Boot and GRFDRV is loaded, it then goes to the hard drive,
finishes the loading of things such as shell and runs STARTUP, if you have
one.
  The boot from floppy only takes about fifteen seconds. The rest of the
startup process is done completely from the hard drive.

  The ONLY difference in this setup and the OEM setup is the /dd. That
device descriptor is in /sys/config and needs to be used in the boot file in
place of the stock /dd descriptor. In MY system, the default drive
descriptor is ddho.dd.scsi


 Is this what you wanted to do?


----- Original Message ----- 
From: "Vern Burke" <vburke at skow.net>
To: <coco at maltedmedia.com>
Sent: Saturday, August 27, 2005 8:05 AM
Subject: [Coco] partial OS9 boot from hard drive (back on topic)


> Ok, we're straying way the heck off track here :). Lemme lay this out 
> again:
>
> What I have to work with:
>
> A working hard drive and SCSI controller with no support for booting 
> directly from the hard drive.
>
> A working OS9 boot floppy with /dd and /d0 as the floppy and /h0 as the 
> hard drive.
>
> All the standard disk manipulation tools (ezgen/etc, ded)
>
> The goal:
>
> Boot from floppy and finish with the hard drive as /dd, the working 
> directory set to /dd, and the execution directory set to /dd/cmds.
>
> I will not/can not:
>
> Rewrite BOOT or any other module (I can patch where required, not a 
> programmer).
>
> Buy an RS-BASIC replacement.
>
> How do I get there from here? :)
>
> Vern
>
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>




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