linux grub.cfg,linux的grub.cfg（debian6&8）配置解析

debian8的/boot/grub/grub.cfg文件(300行)

#

# DO NOT EDIT THIS FILE

#

# It is automatically generated by grub-mkconfig using templates

# from /etc/grub.d and settings from /etc/default/grub

#

### BEGIN /etc/grub.d/00_header ###

if [ -s $prefix/grubenv ]; then

set have_grubenv=true

load_env

fi

if [ "${next_entry}" ] ; then

set default="${next_entry}"

set next_entry=

save_env next_entry

set boot_once=true

else

set default="0"

fi

if [ x"${feature_menuentry_id}" = xy ]; then

menuentry_id_option="--id"

else

menuentry_id_option=""

fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then

set saved_entry="${prev_saved_entry}"

save_env saved_entry

set prev_saved_entry=

save_env prev_saved_entry

set boot_once=true

fi

function savedefault {

if [ -z "${boot_once}" ]; then

saved_entry="${chosen}"

save_env saved_entry

fi

}

function load_video {

if [ x$feature_all_video_module = xy ]; then

insmod all_video

else

insmod efi_gop

insmod efi_uga

insmod ieee1275_fb

insmod vbe

insmod vga

insmod video_bochs

insmod video_cirrus

fi

}

if [ x$feature_default_font_path = xy ] ; then

font=unicode

else

insmod part_msdos

insmod ext2

set root='hd0,msdos5'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

else

search --no-floppy --fs-uuid --set=root b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

fi

font="/usr/share/grub/unicode.pf2"

fi

if loadfont $font ; then

set gfxmode=auto

load_video

insmod gfxterm

set locale_dir=$prefix/locale

set lang=zh_CN

insmod gettext

fi

terminal_output gfxterm

if [ "${recordfail}" = 1 ] ; then

set timeout=-1

else

if [ x$feature_timeout_style = xy ] ; then

set timeout_style=menu

set timeout=5

# Fallback normal timeout code in case the timeout_style feature is

# unavailable.

else

set timeout=5

fi

fi

### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###

insmod part_msdos

insmod ext2

set root='hd0,msdos5'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

else

search --no-floppy --fs-uuid --set=root b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

fi

insmod png

if background_image /usr/share/images/desktop-base/lines-grub.png; then

set color_normal=white/black

set color_highlight=black/white

else

set menu_color_normal=cyan/blue

set menu_color_highlight=white/blue

fi

### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###

function gfxmode {

set gfxpayload="${1}"

}

set linux_gfx_mode=

export linux_gfx_mode

menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-b4d12ad8-4e5a-4222-9d07-06a6d16d4c97' {

load_video

insmod gzio

if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi

insmod part_msdos

insmod ext2

set root='hd0,msdos5'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

else

search --no-floppy --fs-uuid --set=root b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

fi

echo    '载入 Linux 3.16.0-4-amd64 ...'

linux    /boot/vmlinuz-3.16.0-4-amd64 root=UUID=b4d12ad8-4e5a-4222-9d07-06a6d16d4c97 ro cgroup_enable=memory swapaccount=1 quiet

echo    '载入初始化内存盘...'

initrd    /boot/initrd.img-3.16.0-4-amd64

}

submenu 'Advanced options for Debian GNU/Linux' $menuentry_id_option 'gnulinux-advanced-b4d12ad8-4e5a-4222-9d07-06a6d16d4c97' {

menuentry 'Debian GNU/Linux，Linux 3.16.0-4-amd64' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-4-amd64-advanced-b4d12ad8-4e5a-4222-9d07-06a6d16d4c97' {

load_video

insmod gzio

if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi

insmod part_msdos

insmod ext2

set root='hd0,msdos5'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

else

search --no-floppy --fs-uuid --set=root b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

fi

echo    '载入 Linux 3.16.0-4-amd64 ...'

linux    /boot/vmlinuz-3.16.0-4-amd64 root=UUID=b4d12ad8-4e5a-4222-9d07-06a6d16d4c97 ro cgroup_enable=memory swapaccount=1 quiet

echo    '载入初始化内存盘...'

initrd    /boot/initrd.img-3.16.0-4-amd64

}

menuentry 'Debian GNU/Linux, with Linux 3.16.0-4-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.0-4-amd64-recovery-b4d12ad8-4e5a-4222-9d07-06a6d16d4c97' {

load_video

insmod gzio

if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi

insmod part_msdos

insmod ext2

set root='hd0,msdos5'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

else

search --no-floppy --fs-uuid --set=root b4d12ad8-4e5a-4222-9d07-06a6d16d4c97

fi

echo    '载入 Linux 3.16.0-4-amd64 ...'

linux    /boot/vmlinuz-3.16.0-4-amd64 root=UUID=b4d12ad8-4e5a-4222-9d07-06a6d16d4c97 ro single cgroup_enable=memory swapaccount=1

echo    '载入初始化内存盘...'

initrd    /boot/initrd.img-3.16.0-4-amd64

}

}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###

menuentry 'Debian GNU/Linux (stretch/sid) (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-851e2bcc-3fdb-4f7c-ad83-5da11e999ded' {

insmod part_msdos

insmod ext2

set root='hd0,msdos1'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  851e2bcc-3fdb-4f7c-ad83-5da11e999ded

else

search --no-floppy --fs-uuid --set=root 851e2bcc-3fdb-4f7c-ad83-5da11e999ded

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=851e2bcc-3fdb-4f7c-ad83-5da11e999ded ro quiet

initrd /boot/initrd.img-3.16.0-4-amd64

}

submenu 'Advanced options for Debian GNU/Linux (stretch/sid) (on /dev/sda1)' $menuentry_id_option 'osprober-gnulinux-advanced-851e2bcc-3fdb-4f7c-ad83-5da11e999ded' {

menuentry 'Debian GNU/Linux (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.16.0-4-amd64--851e2bcc-3fdb-4f7c-ad83-5da11e999ded' {

insmod part_msdos

insmod ext2

set root='hd0,msdos1'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  851e2bcc-3fdb-4f7c-ad83-5da11e999ded

else

search --no-floppy --fs-uuid --set=root 851e2bcc-3fdb-4f7c-ad83-5da11e999ded

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=851e2bcc-3fdb-4f7c-ad83-5da11e999ded ro quiet

initrd /boot/initrd.img-3.16.0-4-amd64

}

menuentry 'Debian GNU/Linux, with Linux 3.16.0-4-amd64 (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.16.0-4-amd64--851e2bcc-3fdb-4f7c-ad83-5da11e999ded' {

insmod part_msdos

insmod ext2

set root='hd0,msdos1'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  851e2bcc-3fdb-4f7c-ad83-5da11e999ded

else

search --no-floppy --fs-uuid --set=root 851e2bcc-3fdb-4f7c-ad83-5da11e999ded

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=851e2bcc-3fdb-4f7c-ad83-5da11e999ded ro quiet

initrd /boot/initrd.img-3.16.0-4-amd64

}

menuentry 'Debian GNU/Linux, with Linux 3.16.0-4-amd64 (recovery mode) (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.16.0-4-amd64-root=UUID=851e2bcc-3fdb-4f7c-ad83-5da11e999ded ro single-851e2bcc-3fdb-4f7c-ad83-5da11e999ded' {

insmod part_msdos

insmod ext2

set root='hd0,msdos1'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  851e2bcc-3fdb-4f7c-ad83-5da11e999ded

else

search --no-floppy --fs-uuid --set=root 851e2bcc-3fdb-4f7c-ad83-5da11e999ded

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=851e2bcc-3fdb-4f7c-ad83-5da11e999ded ro single

initrd /boot/initrd.img-3.16.0-4-amd64

}

}

menuentry 'Debian GNU/Linux (8.2) (on /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87' {

insmod part_msdos

insmod ext2

set root='hd0,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

else

search --no-floppy --fs-uuid --set=root 17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87 ro quiet

initrd /boot/initrd.img-3.16.0-4-amd64

}

submenu 'Advanced options for Debian GNU/Linux (8.2) (on /dev/sda2)' $menuentry_id_option 'osprober-gnulinux-advanced-17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87' {

menuentry 'Debian GNU/Linux (on /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.16.0-4-amd64--17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87' {

insmod part_msdos

insmod ext2

set root='hd0,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

else

search --no-floppy --fs-uuid --set=root 17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87 ro quiet

initrd /boot/initrd.img-3.16.0-4-amd64

}

menuentry 'Debian GNU/Linux，Linux 3.16.0-4-amd64 (on /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.16.0-4-amd64--17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87' {

insmod part_msdos

insmod ext2

set root='hd0,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

else

search --no-floppy --fs-uuid --set=root 17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87 ro quiet

initrd /boot/initrd.img-3.16.0-4-amd64

}

menuentry 'Debian GNU/Linux, with Linux 3.16.0-4-amd64 (recovery mode) (on /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.16.0-4-amd64-root=UUID=17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87 ro single-17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87' {

insmod part_msdos

insmod ext2

set root='hd0,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

else

search --no-floppy --fs-uuid --set=root 17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87

fi

linux /boot/vmlinuz-3.16.0-4-amd64 root=UUID=17b690c7-a411-4fe4-8ebb-ea5e9ed7cc87 ro single

initrd /boot/initrd.img-3.16.0-4-amd64

}

}

### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###

### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###

# This file provides an easy way to add custom menu entries.  Simply type the

# menu entries you want to add after this comment.  Be careful not to change

# the 'exec tail' line above.

### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###

if [ -f  ${config_directory}/custom.cfg ]; then

source ${config_directory}/custom.cfg

elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then

source $prefix/custom.cfg;

fi

### END /etc/grub.d/41_custom ###

debian6的/boot/grub/grub.cfg文件(126行)

#

# DO NOT EDIT THIS FILE

#

# It is automatically generated by grub-mkconfig using templates

# from /etc/grub.d and settings from /etc/default/grub

#

### BEGIN /etc/grub.d/00_header ###

if [ -s $prefix/grubenv ]; then

load_env

fi

set default="0"

if [ "${prev_saved_entry}" ]; then

set saved_entry="${prev_saved_entry}"

save_env saved_entry

set prev_saved_entry=

save_env prev_saved_entry

set boot_once=true

fi

function savedefault {

if [ -z "${boot_once}" ]; then

saved_entry="${chosen}"

save_env saved_entry

fi

}

function load_video {

insmod vbe

insmod vga

insmod video_bochs

insmod video_cirrus

}

insmod part_msdos

insmod ext2

set root='(hd0,msdos6)'

search --no-floppy --fs-uuid --set 7c651ab7-ad5b-419f-ad5a-c52abacf2cbc

if loadfont /usr/share/grub/unicode.pf2 ; then

set gfxmode=640x480

load_video

insmod gfxterm

fi

terminal_output gfxterm

insmod part_msdos

insmod ext2

set root='(hd0,msdos6)'

search --no-floppy --fs-uuid --set 7c651ab7-ad5b-419f-ad5a-c52abacf2cbc

set locale_dir=($root)/boot/grub/locale

set lang=zh

insmod gettext

set timeout=5

### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###

set menu_color_normal=cyan/blue

set menu_color_highlight=white/blue

### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###

menuentry 'Linx GNU/Linux, with Linux 2.6.32-5-linx-amd64' --class linx --class gnu-linux --class gnu --class os {

insmod part_msdos

insmod ext2

set root='(hd0,msdos6)'

search --no-floppy --fs-uuid --set 7c651ab7-ad5b-419f-ad5a-c52abacf2cbc

echo    'Loading Linux 2.6.32-5-linx-amd64 ...'

linux    /boot/vmlinuz-2.6.32-5-linx-amd64 root=UUID=7c651ab7-ad5b-419f-ad5a-c52abacf2cbc ro linx_serial=F107dce05b32b8ca security=linx  quiet

echo    'Loading initial ramdisk ...'

initrd    /boot/initrd.img-2.6.32-5-linx-amd64

}

menuentry 'Linx GNU/Linux, with Linux 2.6.32-5-linx-amd64 (recovery mode)' --class linx --class gnu-linux --class gnu --class os {

insmod part_msdos

insmod ext2

set root='(hd0,msdos6)'

search --no-floppy --fs-uuid --set 7c651ab7-ad5b-419f-ad5a-c52abacf2cbc

echo    'Loading Linux 2.6.32-5-linx-amd64 ...'

linux    /boot/vmlinuz-2.6.32-5-linx-amd64 root=UUID=7c651ab7-ad5b-419f-ad5a-c52abacf2cbc ro single linx_serial=F107dce05b32b8ca security=linx

echo    'Loading initial ramdisk ...'

initrd    /boot/initrd.img-2.6.32-5-linx-amd64

}

menuentry 'Linx GNU/Linux, with Linux 2.6.32-5-linx-amd64 (linx no root mode)' --class linx --class gnu-linux --class gnu --class os {

insmod part_msdos

insmod ext2

set root='(hd0,msdos6)'

search --no-floppy --fs-uuid --set 7c651ab7-ad5b-419f-ad5a-c52abacf2cbc

echo    'Loading Linux 2.6.32-5-linx-amd64 ...'

linux    /boot/vmlinuz-2.6.32-5-linx-amd64 root=UUID=7c651ab7-ad5b-419f-ad5a-c52abacf2cbc ro linx_serial=F107dce05b32b8ca security=linx quiet linx-no-root

echo    'Loading initial ramdisk ...'

initrd    /boot/initrd.img-2.6.32-5-linx-amd64

}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###

menuentry "Memory test (memtest86+)" {

insmod part_msdos

insmod ext2

set root='(hd0,msdos6)'

search --no-floppy --fs-uuid --set 7c651ab7-ad5b-419f-ad5a-c52abacf2cbc

linux16    /boot/memtest86+.bin

}

menuentry "Memory test (memtest86+, serial console 115200)" {

insmod part_msdos

insmod ext2

set root='(hd0,msdos6)'

search --no-floppy --fs-uuid --set 7c651ab7-ad5b-419f-ad5a-c52abacf2cbc

linux16    /boot/memtest86+.bin console=ttyS0,115200n8

}

### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###

### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###

# This file provides an easy way to add custom menu entries.  Simply type the

# menu entries you want to add after this comment.  Be careful not to change

# the 'exec tail' line above.

### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###

if [ -f  $prefix/custom.cfg ]; then

source $prefix/custom.cfg;

fi

### END /etc/grub.d/41_custom ###