[Buildroot] [PATCHv2 14/15] grub2: prepare and install El Torito image
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Mon Jun 8 22:21:47 UTC 2015
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..280b4d6 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) > \
+ $(BINARIES_DIR)/grub-eltorito.img
mkdir -p $(dir $(GRUB2_CFG))
$(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG)
endef
--
2.1.0
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