[ipxe-devel] Serial over lan

Itay Gazit itaygazit at gmail.com
Mon Mar 12 08:34:11 UTC 2012


Hi,

FYI,

I managed to find a fix. I Removed attribute settings in bios_putchar() and
problem solved.

Itay

On Sat, Mar 10, 2012 at 7:14 PM, Itay Gazit <itaygazit at gmail.com> wrote:

> 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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