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grub2: add a configuration option to embed a config file

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Add an option for embedding a config file directly in grub.

Signed-off-by: Dima Zavin <dmitriyz@google.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Dima Zavin 2014-04-04 01:32:17 -07:00 committed by Thomas Petazzoni
parent 1990e79f14
commit 1f9a0b3815
2 changed files with 10 additions and 0 deletions
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8
boot/grub2/Config.in
View File

@ -117,4 +117,12 @@ config BR2_TARGET_GRUB2_BUILTIN_MODULES
default "boot linux ext2 fat part_msdos part_gpt normal efi_gop" \
if BR2_TARGET_GRUB2_I386_EFI || BR2_TARGET_GRUB2_X86_64_EFI
config BR2_TARGET_GRUB2_BUILTIN_CONFIG
string "builtin config"
help
Path to a Grub 2 configuration file that will be embedded
into the Grub image itself. This allows to set the root
device and other configuration parameters, but however menu
entries cannot be described in this embedded configuration.
endif # BR2_TARGET_GRUB2

2
boot/grub2/grub2.mk
View File

@ -34,6 +34,7 @@ GRUB2_PLATFORM = efi
endif
GRUB2_BUILTIN_MODULES = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_MODULES))
GRUB2_BUILTIN_CONFIG = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_CONFIG))
# Grub2 is kind of special: it considers CC, LD and so on to be the
# tools to build the native tools (i.e to be executed on the build
@ -71,6 +72,7 @@ define GRUB2_IMAGE_INSTALLATION
-O $(GRUB2_TUPLE) \
-o $(GRUB2_IMAGE) \
$(if $(GRUB2_PREFIX),-p $(GRUB2_PREFIX)) \
$(if $(GRUB2_BUILTIN_CONFIG),-c $(GRUB2_BUILTIN_CONFIG)) \
$(GRUB2_BUILTIN_MODULES)
mkdir -p $(dir $(GRUB2_CFG))
$(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG)