[rescue] rescuing an ailing U10...

Jochen Kunz jkunz at unixag-kl.fh-kl.de
Thu Oct 11 03:00:45 CDT 2007

On Wed, 10 Oct 2007 17:53:20 -0700
"James Hartley" <jjhartley at gmail.com> wrote:

> ...indicates that output from a headless system can be captured on the
> serial port, 9600, 8N1.  Yet when I connect a 25-pin serial cable to
> serial port A or a 9-pin serial cable to serial port B, I'm not seeing
> output.  I was under the impression if no keyboard or monitor was
> plugged in at boot, co nsole output would be sent to the serial port.
Yes. The console will switch to serial port A 9600, 8N1 if there is no
keyboard connected.

> Is there something else I'm missing?
Is your wiring correct? You need a "Null-Modem" cable. I.e. RXD / TXD
lines etc. are crossed.


Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/

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