Re: [coreboot] grub as payload: Where to put the grub.cfg?

[Nico Huber]

On 09.11.2016 22:03, Philipp Stanner wrote:
> Hi Nico,
>
> thanks so far.
>
> Using your own pointer to the HDD serves to purpose of being able to
> change the cfg-file without flashing the ROM, I presume?

Yep.
> Anyhow using grub you'd have to use the Shell to start an OS from an
> external drive - in an emergency for example, correct?

You can also load SeaBIOS from GRUB, I suppose.

Nico
> Am 09.11.2016 um 10:19 schrieb Nico Huber:
> > Hi Philipp,
> >
> > On 09.11.2016 09:46, Philipp Stanner wrote:
> > > Hi,
> > >
> > > I'm currently busy making cb+grub running. While I can boot successfully
> > > (qemu) using the grub-shell I of course want to automatize this process.
> > >
> > > But how and where do I have to put the grub.cfg file? The wiki doesn't
> > > include much informations about this.
> > >
> > > I would appreciate if someone could help me :)
> >
> > it's indeed not very obvious. There should be a grub.cfg in the grub
> > image, that just points to the next in cbfs at "/etc/grub.cfg". That's
> > where you should put yours, like that:
> >
> > build/cbfstool build/coreboot.rom add -t raw -n etc/grub.cfg -f
> > your-grub.cfg
> >
> > Nico
> >
> > PS. My (cbfs)/etc/grub.cfg contains just another pointer:
> >
> > configfile (ahci0,1)/grub/grub.cfg