[coreboot] SeaBIOS, serial output, grub, sgabios does not seem to load

Martin Roth gaumless at gmail.com
Sun Jan 11 05:45:19 CET 2015

On 01/10/2015 07:53 AM, Kevin O'Connor wrote:
> On Thu, Dec 25, 2014 at 11:45:40AM +0300, Kuzmichev Viktor wrote:
>> Hello,
>> I've been trying to boot grub installed on the hard drive using coreboot and
>> SeaBIOS as a payload. The motherboard I'm using is Intel Mohon Peak. Also, I
>> do not use VGA for output, only serial port. So, I included the sgabios into
>> my rom file. Here is its layout:
> It should have worked.  How did you build SeaBIOS, what SeaBIOS config
> did you use, and what changes have you made to SeaBIOS?
> -Kevin
As I recall, Mohon Peak uses 0x2f8 for the console serial port.  Did you 
set sgabios to output to 2f8 instead of 3f8 in sgabios.h?

sgabios.h:#define COM_BASE_ADDR           0x3f8


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