[coreboot] ApolloLake Oxbohill CRB GRUB2 menu on serial Console

[Gailu Singh]

Hi,

Tried to change --unit=0 to --unit=2 as the serial port index used in
coreboot is 2. Still grub2 menu is not shown on serial console.



On Mon, Feb 27, 2017 at 4:34 PM, Gailu Singh <gailu96 at gmail.com> wrote:

> Hi Experts,
>
> I have built grub2 with coreboot platform support (./configure --with-platform=coreboot)
> and managed to load it as elf payload in coreboot. I have added terminal
> support in grub configuration coreboot.cfg as follows
>
> serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1
> terminal_input --append serial terminal_output --append serial
> terminal_input --append usb_keyboard #add keyboard support.
>
> menuentry 'Boot From Hard Disk (Linux)' { insmod (cbfsdisk)/ahci.mod linux
> (ahci1,msdos1)/boot/bzImage root=/dev/sda1 resume=/dev/sda5
> console=ttyS0,115200 }
>
>
> While I see coreboot logs on serial console, I do not see grub2 menu on
> serial console. I can see grub2 menu on HDMI display though, however my
> USB keyboard is not working so not able to control grub either through
> display or serial console.
>
> Any help is appreciated.
>
> Thanks
>
>
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