Hi Ioannis,
I ran into a quite similar problem - I think the wikipage needs quite some overhaul.
anyway: I also have grub2 as coreboot payload. It seems to have a memdisk, but I don't know how to change this. There is a workaround: a grub.cfg gets into that memdisk, which sources (cbfsdisk)/etc/grub.cfg - find for that in the coreboot tree.
the solution then is to add a grub.cfg (and other files, like additional grub modules, background image, ...) to cbfs (in coreboot tree root):
./build/util/cbfstool/cbfstool build/coreboot.rom add -f mygrub.cfg -n etc/grub.cfg -t raw
actually it's a good idea _not to_ put etc/grub.cfg at first - if you have errors in that you may end up softbricking your device. put it somewhere else and source it from the grub command line.
regards, Arian
On 24.07.2016 20:43, Ioannis Koutras wrote:
Hello John,
And thanks for replying. I have checked https://www.coreboot.org/GRUB2 and it is still not clear to me how to embed grub.cfg. I had added GRUB2 directly via "make menuconfig" (It is available on Payload > Add a payload) , so coreboot checked out GRUB's source code, configured, compiled and embedded it to coreboot.rom.
Would you recommend me to install it in a more manual way, as described in the wiki?
Best regards,
Ioannis
On Sun, 17 Jul 2016 at 22:55 John Lewis <jlewis@johnlewis.ie mailto:jlewis@johnlewis.ie> wrote:
Hi Ioannis, Please see https://www.coreboot.org/GRUB2 in relation to setting it up properly. Kind Regards, John. On 15/07/16 21:26, Ioannis Koutras wrote:Hello, I have just flashed coreboot (git commit: 89e7b49) on a Lenovo X220 with GRUB2 as payload and when I boot the machine, I am getting GRUB's command line. I am trying to boot a systemd-boot (previously known as gummiboot?) payload from my disk partition, but I am getting unrecognised payload. Any idea what's the issue there? Additionally, could anyone help me set it up properly, as in searching for grub.cfg in disks and looking to boot from USB? Many thanks in advance, Ioannis
-
arian