I've just received the following note from Kevin on my earlier posting.
Forwarded message:
> From: Kevin.Sheehan@uniq.com.au (Kevin Sheehan {Consulting Poster Child})
>
> > ==============
> > From: David Sinn <DavidS@corbis.com>
> >
> > Make sure that the serial cable between the two systems only has
> > transmit, receive, and ground. The reset occurs because DTR goes away
> > or comes back. Change in DTR pauses the system.
>
> This is *NOT* true - only breaks cause the prom problem. DTR works
> just fine. You might want to clear that up before it becomes urban legend
> territory :-)
I have tested this with a serial cable that only had the three
pins 2, 3 and 7 (ie DB25, 2/3 crossed over, 7 straight through)
connected.
I can confirm that even with the 3 wire cable, switching off/on the
tty still forces the SPARCstation (SS5) to drop to boot prom :-(
Many thanks to Kevin for spotting this.
I also tried a suggestion from Martin Jackson (martinj@ncp.gpt.co.uk)
which is to disconnect/connect the serial cable with the tty still
switched on. This works, ie SunOS (Solaris) continues to function :-)
Thanks Martin.
For now we have taken up Martin's suggestion.
Cheers
f.
-- Fred Youhanaie | Tel: 0115 943 4030 KE11, GPT Limited | Fax: 0115 943 3568 Beeston, NG9 1LA | MNS: 780 4030 youhanf@ncp.gpt.co.uk | Intl: +44 115 943 4030
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