Far from perfect, but I managed to configure the rom so grub is chainloaded
from Seabios, as advised.
https://mail.coreboot.org/pipermail/coreboot/2015-January/079145.html
And I managed to boot into text install (gotta pick up vmlinuz and initd in
the install folder instead of live folder, which would directly boot on the
live desktop (no selection menu).
Minor issues:
There's no way to reach GRUB if I boot with the liveCD inside.
And I do have a 30 seconds delay, though it's the lates Coreboot rom. How
come ?
Also my GRUB is lacking some kind of font since question marks are there
instead of arrows and the frame.
Else I didn't try to boot with an external soundcard plugged in yet.
