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

[Vern Burke]

OS is OS9 L2, the SCSI controller is a TCCC/Cloud 9 unit. The driver is 
TCC512 and, yes, the working floppy boot contains the driver and /h0 
description for the hard drive. I sometimes wish for the old days of my 
CoCo XT and the XT ROM.

At the time I got mine, and as far as I know still, there is no 
provision to boot this combination without use of a floppy, or to load 
the boot track or os9boot from the hard drive.

I certainly can just make the /dd descriptor the hard drive descriptor, 
the problem is that the boot will not finish with /dd set as working 
directory and /dd/cmds set as execution. The boot finshes up /d0 and 
/d0/cmds and it's a pain in the butt because I have to do a manual 
chd/chx to the hard drive.

Vern

Robert Gault wrote:
> Vern Burke wrote:
> 
>> 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.
> 
> 
> Why no support? What SCSI controller and OS? Do you just mean that you 
> don't know how to set up OS-9 to boot from the hard drive or that your 
> SCSI OS can't boot from the hard drive?
> 
>>
>> A working OS9 boot floppy with /dd and /d0 as the floppy and /h0 as 
>> the hard drive.
> 
> 
> Does this working floppy contain a hard disk driver (hdisk) in the 
> os9boot file?
> 
>>
>> 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.
> 
> 
> Just change /dd so that it is the hard drive. There should be substitute 
> /dd modules on the NitrOS-9 80T disk or 40T disk 2 for this purpose.
> 
>>
>> I will not/can not:
>>
>> Rewrite BOOT or any other module (I can patch where required, not a 
>> programmer).
>>
>> Buy an RS-BASIC replacement.
> 
> 
> Meaning what? Again, what disk OS is in use with your hard drive system?
> 
>>
>> How do I get there from here? :)
>>
>> Vern
>>
>