1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
config BR2_TARGET_GRUB2_ARCH_SUPPORTS
bool
default y if BR2_i386
default y if BR2_x86_64
config BR2_TARGET_GRUB2
bool "grub2"
depends on BR2_TARGET_GRUB2_ARCH_SUPPORTS
depends on BR2_USE_WCHAR
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.
For additional notes on using Grub 2 with Buildroot, see
boot/grub2/readme.txt
http://www.gnu.org/software/grub/
if BR2_TARGET_GRUB2
choice
prompt "Platform"
config BR2_TARGET_GRUB2_I386_PC
bool "i386-pc"
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"
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_ARCH_IS_64
help
Select this option if the platform you're targetting has a
64 bits EFI BIOS.
endchoice
if BR2_TARGET_GRUB2_I386_PC
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.
endif # BR2_TARGET_GRUB2_I386_PC
config BR2_TARGET_GRUB2_BUILTIN_MODULES
string "builtin modules"
default "boot linux ext2 fat squash4 part_msdos part_gpt normal biosdisk" if BR2_TARGET_GRUB2_I386_PC
default "boot linux ext2 fat squash4 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
comment "grub2 needs a toolchain w/ wchar"
depends on BR2_TARGET_GRUB2_ARCH_SUPPORTS
depends on !BR2_USE_WCHAR
|
