blob: 7c235e96f71d429911f3adbe8cd9746f69566f01 [file] [log] [blame]
config BR2_TARGET_GRUB2_ARCH_SUPPORTS
bool
default y if BR2_i386
default y if BR2_x86_64
default y if BR2_arm
default y if BR2_aarch64
default y if BR2_RISCV_64
depends on BR2_USE_MMU
config BR2_TARGET_GRUB2
bool "grub2"
depends on BR2_TARGET_GRUB2_ARCH_SUPPORTS
depends on BR2_USE_WCHAR
select BR2_TARGET_GRUB2_I386_PC if \
!BR2_TARGET_GRUB2_HAS_PTF && \
(BR2_i386 || BR2_x86_64)
select BR2_TARGET_GRUB2_ARM_UBOOT if \
!BR2_TARGET_GRUB2_HAS_PTF && \
BR2_arm
select BR2_TARGET_GRUB2_ARM64_EFI if BR2_aarch64
help
GNU GRUB is a Multiboot boot loader. It was derived from
GRUB, the GRand Unified Bootloader, which was originally
designed and implemented by Erich Stefan Boleyn. GRUB 2 has
replaced what was formerly known as GRUB (i.e. version
0.9x), which has, in turn, become GRUB Legacy.
Amongst others, GRUB2 offers EFI support, which GRUB Legacy
doesn't provide.
The file boot/grub2/grub.cfg is used by default as the Grub
configuration file. It can be overridden using a rootfs
overlay or post-build script.
For additional notes on using Grub 2 with Buildroot, see
boot/grub2/readme.txt
http://www.gnu.org/software/grub/
if BR2_TARGET_GRUB2
config BR2_TARGET_GRUB2_HAS_LEGACY_BOOT
bool
config BR2_TARGET_GRUB2_HAS_EFI_BOOT
bool
config BR2_TARGET_GRUB2_HAS_PTF
bool
config BR2_TARGET_GRUB2_I386_PC
bool "i386-pc"
depends on BR2_i386 || BR2_x86_64
select BR2_TARGET_GRUB2_HAS_LEGACY_BOOT
help
Select this option if the platform you're targetting is a
x86 or x86-64 legacy BIOS based platform.
config BR2_TARGET_GRUB2_I386_EFI
bool "i386-efi"
depends on BR2_i386 || BR2_x86_64
select BR2_TARGET_GRUB2_HAS_PTF
select BR2_TARGET_GRUB2_HAS_EFI_BOOT
help
Select this option if the platform you're targetting has a
32 bits EFI BIOS. Note that some x86-64 platforms use a 32
bits EFI BIOS, and this option should be used in this case.
config BR2_TARGET_GRUB2_X86_64_EFI
bool "x86-64-efi"
depends on BR2_x86_64
select BR2_TARGET_GRUB2_HAS_PTF
select BR2_TARGET_GRUB2_HAS_EFI_BOOT
help
Select this option if the platform you're targetting has a
64 bits EFI BIOS.
config BR2_TARGET_GRUB2_ARM_UBOOT
bool "arm-uboot"
depends on BR2_arm
select BR2_TARGET_GRUB2_HAS_LEGACY_BOOT
help
Select this option if the platform you're targetting is an
ARM u-boot platform, and you want to boot Grub 2 as an u-boot
compatible image.
config BR2_TARGET_GRUB2_ARM_EFI
bool "arm-efi"
depends on BR2_arm
select BR2_TARGET_GRUB2_HAS_PTF
select BR2_TARGET_GRUB2_HAS_EFI_BOOT
help
Select this option if the platform you're targetting is an
ARM platform and you want to boot Grub 2 as an EFI
application.
config BR2_TARGET_GRUB2_ARM64_EFI
bool "arm64-efi"
depends on BR2_aarch64
select BR2_TARGET_GRUB2_HAS_EFI_BOOT
help
Select this option if the platform you're targetting is an
Aarch64 platform and you want to boot Grub 2 as an EFI
application.
config BR2_TARGET_GRUB2_RISCV64_EFI
bool "riscv64-efi"
depends on BR2_RISCV_64
select BR2_TARGET_GRUB2_HAS_EFI_BOOT
help
Select this option if the platform you're targetting is a
64bit RISC-V platform and you want to boot Grub 2 as an EFI
application.
if BR2_TARGET_GRUB2_HAS_LEGACY_BOOT
comment "Options for the x86 legacy BIOS or ARM U-Boot support"
config BR2_TARGET_GRUB2_BOOT_PARTITION
string "boot partition"
default "hd0,msdos1"
help
Specify the partition where the /boot/grub/grub.cfg file is
located. Use 'hd0,msdos1' for the first partition of the
first disk if using a legacy partition table, or 'hd0,gpt1'
if using GPT partition table.
config BR2_TARGET_GRUB2_BUILTIN_MODULES_PC
string "builtin modules"
default BR2_TARGET_GRUB2_BUILTIN_MODULES if BR2_TARGET_GRUB2_BUILTIN_MODULES != "" # legacy
default "boot linux ext2 fat squash4 part_msdos part_gpt normal biosdisk" if BR2_TARGET_GRUB2_I386_PC
default "linux ext2 fat part_msdos normal" if BR2_TARGET_GRUB2_ARM_UBOOT
config BR2_TARGET_GRUB2_BUILTIN_CONFIG_PC
string "builtin config"
default BR2_TARGET_GRUB2_BUILTIN_CONFIG if BR2_TARGET_GRUB2_BUILTIN_CONFIG != "" # legacy
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_HAS_LEGACY_BOOT
if BR2_TARGET_GRUB2_HAS_EFI_BOOT
comment "Options for the EFI BIOS or ARM EFI support"
config BR2_TARGET_GRUB2_BUILTIN_MODULES_EFI
string "builtin modules"
default BR2_TARGET_GRUB2_BUILTIN_MODULES if BR2_TARGET_GRUB2_BUILTIN_MODULES != "" # legacy
default "boot linux ext2 fat squash4 part_msdos part_gpt normal efi_gop"
config BR2_TARGET_GRUB2_BUILTIN_CONFIG_EFI
string "builtin config"
default BR2_TARGET_GRUB2_BUILTIN_CONFIG if BR2_TARGET_GRUB2_BUILTIN_CONFIG != "" # legacy
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_HAS_EFI_BOOT
config BR2_TARGET_GRUB2_INSTALL_TOOLS
bool "install tools"
help
Install support tools to interact with GNU GRUB Multiboot
boot loader.
This will also install the Grub 2 loadable modules to the
target.
endif # BR2_TARGET_GRUB2
comment "grub2 needs a toolchain w/ wchar"
depends on BR2_TARGET_GRUB2_ARCH_SUPPORTS
depends on !BR2_USE_WCHAR