[Coco] Drive Wire strangeness

Robert Gault robert.gault at att.net
Sun Dec 8 19:04:54 EST 2013


Tim Fadden wrote:
> Hi all,
>
> I have a strange one.
> Stock coco3 and multipak.  dw3 hdbdos rom in tandy controller and tc3 scsi
> controller.
>
> Ok  built a floppy boot to boot making  x0 as DD and tc3 drivers for the hard
> drive.  Every thing accessed as expected scsi disk and dw3 disks. I then copied
> over the system to the scsidisk.
>
> I then used the same mb script but changed the dd device from x0 to s0 and
> booted of of that one.
>
> Booted fine, and the hard drive works as expected, but when I try to access the
> S0 etc drives, I get a #221, module not found error.
>
> I did an ident on the os9boot files for both, and all is good.  also checked
> with mdir, and everything is there as expected.  also did a save on the dw3
> modules and did an ident and they are good.
>
> What am I missing?
>
> Also is there a way to make custom dw bootable .dsk files?  Using the mb script
> and putting in /x0 to format does not work.
>
> Tim
>
Tim,

Module not found #221 unfortunately does not tell you which module was not 
found. The fact that your OS9Boot file contains what you expected, does not mean 
it contains what is needed.
Likewise, creating a boot disk with a script that does not work, means that you 
have modified the scripts to do what you thought was correct but not necessarily 
what was needed. Ident tells you what is present, not what should be present. :)

When you say something doesn't work, you need to include specifics. What part of 
a process failed? What errors, if any, were reported? Separate DW and OS-9 
errors, indicating which is which.

The only way to troubleshoot your problem is to examine your mb and bl scripts 
to see exactly what you placed in the OS9Boot file. Since there are some disks 
on the Sourceforge site with bad content, the disk you used with scripts and 
modules plus the resulting boot disk would be needed to determine what is on them.

I'd be happy to look at your scripts but don't have your tc3 hardware to test 
the result. I could check an OS9Boot file to see if the included modules look right.

Robert







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