Hello,
I am trying to run Linux through the GRUB2 payload. I am not tied to GRUB2 but it's the only payload that gives me HDMI output (board has no serial port) using Coreboot and AMD FT3B-LC.
I have the latest Coreboot sources, have set config accordingly (e.g. CONFIG_MAINBOARD_SMBIOS_PRODUCT_NAME="DB-FT3b-LC"...), getting an image on HDMI and the GRUB2 payload is executing. In GRUB2 payload I seem to have an overflow issue possibly related to the *vga_text* mode. If I put a proprietary AMI BIOS, GRUB2 works without issue in gfxterm mode and boots Linux without issue.
Using Coreboot every time the screen gets full of text, GRUB2 re-executes. If I though set the terminal_output to cbmemc then commands would execute but Linux still fails to execute - at the end GRUB2 would restart.
Also the GRUB2 payload on Coreboot does see the drive/files and attempts to execute - I looks like a GRUB2/Coreboot config/code problem.
I execute the below in GRUB2 (which work on AMI BIOS + GRUB2). grub> set root=(hd0,gpt2) grub> linux /boot/vmlinuz-3.13.0-29-generic root=/dev/sda2 grub> initrd /boot/initrd.img-3.13.0-29-generic grub> boot
1. Would anyone have any recommendation about the overflow in GRUB2 payload ? - related to Coreboot. 2. Any suggestions on booting Linux given this board's limitations on output (HDMI only) ?
Thank you, Grigore