[coreboot] Unable to start correctly coreboot on Asus f2a85-m REV 1.02

[Rudolf Marek]

On 31.1.2014 13:53, HacKurx wrote:
>> No way. You will need to use serial port. Just plug the header to mainboard and use some USB 2 serial from other computer (together with null
>> modem cable) if you need more info please let me know.
> Do you have any links, diagram or picture for this method? Thanks

Yes sure. You will need at least those things:

1) serial header connector

http://www.ebay.com/itm/DB9-Male-RS232-COM-Port-Serial-Header-Cable-for-Asus-Gigabyte-ATX-Motherboard-/151124424976?pt=LH_DefaultDomain_0&hash=item232fb7b910

You can take any from some old motherboard. Usually there where two variants of 
pinout. The newer one fits the most mainboards. You need to plug it to a header 
on the f2a85-m board. (pin1 to the color stripe on the cable)  I think it is 
called "COM header" in the manual.

2) null modem cross cable

The header from 1) needs to be plugged to 2)

This cable is very common. It is also called "crossed" cable with female/female 
9 pin connector.

http://www.ebay.com/itm/Serial-RS232-Null-Modem-Cable-Female-to-Female-DB9-FTA-/270787845377?pt=AU_CablesConnectors&hash=item3f0c369d01

(female / female)

3) USB to serial cable

Either find some other computer which has a serial header (and you will need 
second header from 1)) or buy this convertor. Most of them use pl2303 or ftdi 
chip which is well supported under linux.

http://www.ebay.com/itm/USB-to-RS232-Serial-Port-9-Pin-DB9-Cable-Serial-COM-Port-Adapter-Convertor-2014-/201011761929?pt=US_Parallel_Serial_PS_2_Cables_Adapters&hash=item2ecd3c1309

4) other computer (any laptop/desktop)

Plug in the USB serial with all cables plugged, and use /dev/ttyUSB0

use "minicom" or "hyperterminal" if you use windows. Set it 115200 8N1 (8 byte 1 
stop bit no parity)

You should see some output of coreboot. Capture it via (ctrl a l shortcut in 
minicom) to a file and send it back to list.

If is something unclear, please let us know. You need to make it up to next 
Friday. I will be then long time AFK and I will back in March.

Thanks
Rudolf