[ale] Interesting problem with Intel S1200BTSR MB

[Jim Kinney]

So the system _DOES_ boot OK but you have no console?

That sounds like a hardware conflict for the serial port. I have a vague
memory of some gear I poked at that had to have the bios console redirect
set to a non-working IO address even if it was disabled in order to not
squash the physical serial port. Serial port sharing didn't work. Very
fuzzy memory on this.

If you have the gear, certainly try looking at the wire level voltages and
see if they go dark when the OS starts up. That would be a sure sign of a
conflict. I don't recall if there's a flag for grub serial to force a share.


On Mon, Jul 14, 2014 at 2:09 PM, Chris Fowler <cfowler at outpostsentinel.com>
wrote:

> On 07/14/2014 02:05 PM, Jim Kinney wrote:
>
>> Is the bios console redirect camping on top of the physical serial port?
>>
>
> I have the BIOS redirect turned off.  I've not tested it yet.
>
> IMO the grub setting and kernel setting should have no bearing on what is
> going on.  One thing I could try is a 3-wire cable.  TX, RX, and GND to see
> if any of the other pins being active could be doing something.
>
> With the null-modem all that would be high on the MB's serial would be:
> RTS, DCD, DSR, Maybe RI.
>
>
> Chris
>
>
>


-- 
-- 
James P. Kinney III

Every time you stop a school, you will have to build a jail. What you gain
at one end you lose at the other. It's like feeding a dog on his own tail.
It won't fatten the dog.
- Speech 11/23/1900 Mark Twain


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