[ipxe-devel] Serial over lan

Itay Gazit itaygazit at gmail.com
Sat Mar 10 17:14:47 GMT 2012


Hi,

I did further investigating, I do think it's some kind of conflict with the
BIOS.

While during PXE execution in real mode the text was displayed fine, only
when the PXE execution switch to protected mode the text become scramble.

In real mode iPXE uses INT10 to print. Does anyone know, how does iPXE
print to the screen in proteted mode? Is an IRQ vector being hooked when
using serial cable?

Thanks,

Itay

On Mon, Mar 5, 2012 at 2:55 PM, Itay Gazit <itaygazit at gmail.com> wrote:

> Hi,
>
>
>
> I am trying watch the ipxe screen via serial over lan from remote on HP
> server I have.
>
>
>
> For a reason I don't know yet, I do able to watch the remote machine
> characters, but the iPXE characters specifically are scramble and unclear.
>
>
>
> I tried to recompile the ROM image with the BIOS COM configuration in the
> serial.c and console.c files, but still it doesn't work.
>
>
>
> Did anyone succeed watching the iPXE via SOL? Does it require special
> configuration I missed?
>
>
>
> Thanks,
>
>
>
> Itay
>
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