Subject: Re: Booting SCSI
To: None <port-vax@netbsd.org>
From: Richard Dickens <rdickens@cix.compulink.co.uk>
List: port-vax
Date: 01/03/1999 17:28:00
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> 1999
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> To: Richard Dickens <rdickens@cix.compulink.co.uk>
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> Subject: Re: Booting SCSI
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> On 2 Jan 1999, Richard Dickens wrote:
> > Thanks for the info, it's now reading the kernel from the disk.
> > 
> > However, it doesn't seem to get much further, I see one flash on the 
> > activity lights of the SCSI disk and tape (device probe I think), 
> > then a couple more flashes on the disk and it hangs.
> > 
> > It doesn't manage to output anything to the console so I guess it's 
> > not getting as far as executing /etc/rc.
> > 
> > Are there any extra switches I could pass to the boot command? I've 
> > tried -s and that didn't help?
> > 
> > The same kernel works fine when net booted and allows me to mount the 
> > SCSI disk. 
> 
> Are you trying to boot from the console?
> If so, you've got to have a devicefile that allows the kernel to direct
> it's output to the console. I seem to remember someone writing something
> about that sometime ago on port-vax. Even if the kernel supports the 
> console, the devicefile has to be there for it to work.
> BTW. it's only the newer kernels that has support for it as far as i 
> know,
> at least on the VS3100.

I don't think that's the problem. Using exactly the same configuration, 
device files and kernel, I can net boot successfully.

As I said in a previous post, the device file created by MAKEDEV for the 
console seems to be wrong on MV3100s. It gets created as 0,0 whereas it 
needs to be 1,0 to talk to the first MMJ port on the back.

Maybe the kernel is writing an error message directly to 0,0 (is this 
possible?) rather than to /dev/console. Whatever the reason, it doesn't 
boot from my SCSI disk.

Richard Dickens