Bios post monitoring

[aelorenzo]

Hi all,

I am trying to monitor the boot process of a computer using another one connected through a null modem cable (serial port communication), mainly BIOS POST codes and linux kernel boot process. I know how to do it for the linux kernel, but I am not able to imagine how to monitor the BIOS POST codes.

I know that their are sent to the ISA I/O address 80h, but, how can I get that codes using a serial port connection or, also, I2C?

Thanks in advance,

Antonio

 

[r_manic]

I don't understand: don't the BIOS POST codes show during the actual POST process?