On Mon, Sep 23, 2013 at 9:21 AM, Paul Menzel < [email protected]> wrote:
> Dear Tank Tang, > > > Am Sonntag, den 22.09.2013, 16:20 +0800 schrieb [email protected]: > > > I am a bios engineer from Byosoft. > > welcome to coreboot! Communicating on mailing lists, please make sure to > follow the netiquette [1]. Especially, please just send plain text > message with no HTML parts. > > > Unfortunately, I meet 2 questions about building Grub2 as coreboot's > payload. > > (1)How can I enable vga support during post? > > I have configure the following token: > > CONFIG_VGA_ROM_RUN=y > > CONFIG_VGA_BIOS=y > > CONFIG_VGA_BIOS_ID="8086,0166" > > CONFIG_VGA_BIOS_FILE="./src/vbios.bin" > > But it seems that it doesn't make sence.Is there something need I to do > in Grub2 to support vga. > > What board do you use? > > If coreboot successfully runs the VGA BIOS/Option ROM (and if it is > needed), GRUB 2 should be able to display text on the monitor. I am > successfully doing that on the ASRock E350M1. > > Do you get graphics with SeaBIOS as a payload and letting SeaBIOS run > the VGA BIOS/Option ROM? > > > (2)How can I enable serial prot debug after Grub2 Payload is loaded? > > I have add the following to grub.cfg and use "grub-mkimage -c ./grub.cfg > ......." to make the Grub2.elf. > > serial --speed=115200 --unit=0 --word=8 --parity=no > --stop=1 > > terminal_input --append serial > > terminal_output --append serial > > > > But it doesn't work after grub2 payload is called! > > That should work. Do you get serial output with coreboot? Do you get > serial output from the GRUB installed on your hard disk? > Does TankTang also need to set GRUB_GFXMODE (ie GRUB_GFXMODE=640x480) in grub.cfg?
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