[syslinux] no kbd via serial

[H. Peter Anvin]

On 05/10/2011 10:55 AM, Greg Forte wrote:
> I had an isolinux config that was working with Kontron CG2100s for
> serial console with console redirection enabled in the BIOS (and
> attaching via SOL through an Intel RMM3 module) - for some reason I had
> to set serial port 1 instead of 0 in the config (even though the
> physical port is 0, and the RMM is supposed to just be redirecting the
> physical port), but it worked.
>
> A tester on a different box (same model and configuration) that didn't
> have console redirection enabled complained that they couldn't see the
> boot menu; I tried changing the serial port back to 0 in the isolinux
> config, and now the menu is visible, but it doesn't respond to keyboard
> input (again, over SOL; I haven't tried physical serial). This turns out
> to be true (menu visible, no response to kbd) whether serial redirection
> is enabled or not.
>
> Has anyone encountered anything similar, and/or have any tips for what
> else to try?
>

First of all, please try physical serial in case it is a problem with 
your SOL module.

There are a few things you can try: you can enable serial port interrupt 
handling, you can disable HLT, and you can set "console 0" to speak only 
to the serial port.

	-hpa