Re: About grub.cfg——Building coreboot w ith grub2 payload

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 31.05.2011 03:20, Rock Cui wrote:
> I am working hard at building coreboot with grub2 payload.
I thought before using coreboot you had to learn bascs of computng as
e.g. not to send HTML messages.
> Now  I can build a grub2 payload as follow:
> 1: Download the lastest grub2 source code.
> 2: ./autogen.sh
>     ./configure --with-platform=coreboot
>      make
> 3: Use grub-mkimage to generate a "payload.elf", detail:
>     ./grub-mkimage -d . -O i386-coreboot -o ../coreboot-v4/payload.elf
> --prefix='/boot/grub2'
>       memdisk cpio -m ../memdisk.tar
it's -d grub-core and you need "tar" module, not "cpio" and it's
--prefix=(memdisk)/boot/grub
>        
>     Accoding the coreboot website(http://www.coreboot.org/Talk:GRUB2),
> memdisk is a virtual disk
>     in grub image and it is suggested that grub.cfg is contained in a
> memdisk image. So I made
>     folders boot/grub2 in my work folder and add a new grub.cfg and
> some modules(such as
>     memdisk.mod cpio.mod ...) into the boot/grub2, then tar boot/grub2
> to memdisk.tar(according
>     to the website tar can be used to build a memdisk image).
>
> *Problems:*
>     1: I don't know wether grub2 can found my grub.cfg ,if I set  "
> --prefix='/boot/grub2' " ?
>         On the coreboot website,a sample is 
> --prefix='(ata0)/boot/grub2'. I think the ata0 is hard disk.
>         but I use the memdisk image, what should I do ?
>
>     2: I want my grub.cfg in memdisk to load the grub.cfg from my hard
> disk. Because I have install the
>         ubuntu11.04 on my hard disk, a grub.cfg file should be in the
> /boot/grub. So my grub.cfg just like
>         this:
>                 search -f -s /boot/grub/grub.cfg
>                 configfile /boot/grub/grub.cfg
>         
>         Is this practicable?
>
>     3: I want the gurb can boot into the grub-shell, how to ?
>
Just put no grub.cfg for this.
> BRs,
>
> Rock.C
>
>
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-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko

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