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fs/iso9660: add support for grub2

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After having extended the iso9660 support to allow isolinux as an
alternative to grub, this commit adds grub2 as a third
alternative. With the previous work done to support isolinux, adding
support for grub2 is fairly trivial.

[Thomas: set timeout to 10 seconds and not 5 seconds, in order to
match the configuration used for grub.]

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This commit is contained in:
Thomas Petazzoni 2015-06-09 00:21:48 +02:00
parent 8decd25477
commit 795df97093
3 changed files with 31 additions and 3 deletions
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18
fs/iso9660/Config.in
View File

@ -2,7 +2,9 @@ config BR2_TARGET_ROOTFS_ISO9660
bool "iso image" bool "iso image"
depends on (BR2_i386 || BR2_x86_64) depends on (BR2_i386 || BR2_x86_64)
depends on BR2_LINUX_KERNEL depends on BR2_LINUX_KERNEL
depends on BR2_TARGET_GRUB || BR2_TARGET_SYSLINUX_ISOLINUX depends on BR2_TARGET_GRUB || \
BR2_TARGET_GRUB2 || \
BR2_TARGET_SYSLINUX_ISOLINUX
select BR2_LINUX_KERNEL_INSTALL_TARGET \ select BR2_LINUX_KERNEL_INSTALL_TARGET \
if (!BR2_TARGET_ROOTFS_ISO9660_INITRD && !BR2_TARGET_ROOTFS_INITRAMFS) if (!BR2_TARGET_ROOTFS_ISO9660_INITRD && !BR2_TARGET_ROOTFS_INITRAMFS)
help help
@ -29,6 +31,15 @@ config BR2_TARGET_ROOTFS_ISO9660_GRUB
depends on BR2_TARGET_GRUB depends on BR2_TARGET_GRUB
select BR2_TARGET_GRUB_FS_ISO9660 select BR2_TARGET_GRUB_FS_ISO9660
config BR2_TARGET_ROOTFS_ISO9660_GRUB2
bool "grub2"
depends on BR2_TARGET_GRUB2
help
Use Grub 2 as the bootloader for the ISO9660 image. Make
sure to enable the 'iso9660' module in
BR2_TARGET_GRUB2_BUILTIN_MODULES and to use 'cd' as the boot
partition in BR2_TARGET_GRUB2_BOOT_PARTITION=.
config BR2_TARGET_ROOTFS_ISO9660_ISOLINUX config BR2_TARGET_ROOTFS_ISO9660_ISOLINUX
bool "isolinux" bool "isolinux"
depends on BR2_TARGET_SYSLINUX_ISOLINUX depends on BR2_TARGET_SYSLINUX_ISOLINUX
@ -38,6 +49,7 @@ endchoice
config BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU config BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU
string "Boot menu.lst file" string "Boot menu.lst file"
default "fs/iso9660/menu.lst" if BR2_TARGET_ROOTFS_ISO9660_GRUB default "fs/iso9660/menu.lst" if BR2_TARGET_ROOTFS_ISO9660_GRUB
default "fs/iso9660/grub.cfg" if BR2_TARGET_ROOTFS_ISO9660_GRUB2
default "fs/iso9660/isolinux.cfg" if BR2_TARGET_ROOTFS_ISO9660_ISOLINUX default "fs/iso9660/isolinux.cfg" if BR2_TARGET_ROOTFS_ISO9660_ISOLINUX
help help
Use this option to provide a custom bootloader configuration Use this option to provide a custom bootloader configuration
@ -69,7 +81,7 @@ config BR2_TARGET_ROOTFS_ISO9660_HYBRID
endif endif
comment "iso image needs a Linux kernel and one of grub or isolinux to be built" comment "iso image needs a Linux kernel and one of grub, grub2 or isolinux to be built"
depends on BR2_i386 || BR2_x86_64 depends on BR2_i386 || BR2_x86_64
depends on !BR2_LINUX_KERNEL || \ depends on !BR2_LINUX_KERNEL || \
!(BR2_TARGET_GRUB || BR2_TARGET_SYSLINUX_ISOLINUX) !(BR2_TARGET_GRUB || BR2_TARGET_GRUB2 || BR2_TARGET_SYSLINUX_ISOLINUX)

7
fs/iso9660/grub.cfg Normal file
View File

@ -0,0 +1,7 @@
set default="0"
set timeout="10"
menuentry "Buildroot" {
linux __KERNEL_PATH__ root=/dev/sr0
initrd __INITRD_PATH__
}

9
fs/iso9660/iso9660.mk
View File

@ -53,6 +53,15 @@ define ROOTFS_ISO9660_INSTALL_BOOTLOADER
$(INSTALL) -D -m 0644 $(GRUB_DIR)/stage2/stage2_eltorito \ $(INSTALL) -D -m 0644 $(GRUB_DIR)/stage2/stage2_eltorito \
$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/stage2_eltorito $(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/stage2_eltorito
endef endef
else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_GRUB2),y)
ROOTFS_ISO9660_DEPENDENCIES += grub2
ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \
$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub.cfg
ROOTFS_ISO9660_BOOT_IMAGE = boot/grub/grub-eltorito.img
define ROOTFS_ISO9660_INSTALL_BOOTLOADER
$(INSTALL) -D -m 0644 $(BINARIES_DIR)/grub-eltorito.img \
$(ROOTFS_ISO9660_TARGET_DIR)/boot/grub/grub-eltorito.img
endef
else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_ISOLINUX),y) else ifeq ($(BR2_TARGET_ROOTFS_ISO9660_ISOLINUX),y)
ROOTFS_ISO9660_DEPENDENCIES += syslinux ROOTFS_ISO9660_DEPENDENCIES += syslinux
ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \ ROOTFS_ISO9660_BOOTLOADER_CONFIG_PATH = \