welcome to coreboot!
Am Donnerstag, den 22.01.2015, 23:34 -0500 schrieb Wen Wang:
Has anybody tried to launch GRUB2 by SeaBIOS as a
payload (not grub2 on
MBR)? I am hoping to see grub2 on SeaBIOS boot menu.
Yes, I did. You can press F12 (or the configured key) and select the
GRUB 2 payload. Also make sure to enable support for payloads in SeaBIOS
I followed the coreboot wiki page to compile grub2:
git clone git://git.savannah.gnu.org/grub.git
At this point it is not clear to me how to create grub2.elf and what the
role of memdisk is. I would appreciate it if somebody could clarify the
You can look at `payloads/external/GRUB2/Makefile.inc` in coreboot’s
source to see how it is built when selected as payload in the Kconfig
The following additional steps should get you going.
$ make default_payload.elf
Then go to the coreboot directory. Add a symlink to the built GRUB
payload file and add it compressed to the file `img/grub.lzma` in the
CBFS (coreboot file system) of your coreboot firmware image using
$ ln -s path/to/default_payload.elf grub2.elf
$ build/cbfstool build/coreboot.rom add-payload -f grub2.elf -n img/grub.lzma -c
Add the GRUB configuration file to `etc/grub.cfg` in the CBFS of your
coreboot firmware image.
$ build/cbfstool build/coreboot.rom add -f /boot/grub/grub.cfg -n etc/grub.cfg -t
Then write the image to the flash ROM chip.
If it works for you, it’d be great if you added it to the Wiki.