[Buildroot] [PATCH 11/12] grub2: prepare and install El Torito image
Yann E. MORIN
yann.morin.1998 at free.fr
Fri Jun 5 23:09:11 UTC 2015
Thomas, All,
On 2015-06-04 17:05 +0200, Thomas Petazzoni spake thusly:
> In order to support ISO9660 bootable images that rely on Grub 2, this
> commit modifies thr Grub 2 makefile to generate and install an El
> Torito image. Such an image is simply produced by concatenating the
> cdboot.img provided by Grub 2, and the Grub 2 image generated by
> Buildroot using grub-mkimage.
>
> Since this action is so simple and cost-free, we don't bother adding a
> Grub 2 sub-option for that, and simply generate the El Torito image
> unconditionally.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> ---
> boot/grub2/grub2.mk | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/boot/grub2/grub2.mk b/boot/grub2/grub2.mk
> index 697f0ad..dd04bb3 100644
> --- a/boot/grub2/grub2.mk
> +++ b/boot/grub2/grub2.mk
> @@ -76,6 +76,8 @@ define GRUB2_IMAGE_INSTALLATION
> -p "$(GRUB2_PREFIX)" \
> $(if $(GRUB2_BUILTIN_CONFIG),-c $(GRUB2_BUILTIN_CONFIG)) \
> $(GRUB2_BUILTIN_MODULES)
> + cat $(HOST_DIR)/usr/lib/grub/$(GRUB2_TUPLE)/cdboot.img \
> + $(GRUB2_IMAGE) > $(HOST_DIR)/usr/lib/grub/$(GRUB2_TUPLE)/grub-eltorito.img
In retrospect, I think you should install that in $(BINARIES_DIR), like
is done for $(GRUB2_IMAGE), not in $(HOST_DIR).
Regards,
Yann E. MORIN.
> mkdir -p $(dir $(GRUB2_CFG))
> $(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG)
> endef
> --
> 2.1.0
>
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