Linux Ubuntu 修改Grub，添加删除启动项，初步辨析Grub文件。
使用场景：由于我的电脑 装Ubuntu 的时候电脑里只有一个Windows 系统，所以Ubuntu就自动将我Windows的启动项添加进取。后来我的电脑里又装了 Kali 和 Win11 所以想把这两个启动项也加进去。所以我们来了解一下Ubuntu的Grub，还不是很完善，希望那个大家在评论给我补充。在Ubuntu 中打开Grubsudo gedit/boot/grub/grub.cfgsudo
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使用场景：
由于我的电脑 装Ubuntu 的时候电脑里只有一个Windows 系统，所以Ubuntu就自动将我Windows的启动项添加进取。
后来我的电脑里又装了 Kali 和 Win11 所以想把这两个启动项也加进去。所以我们来了解一下Ubuntu的Grub，还不是很完善，希望那个大家在评论给我补充。
在Ubuntu 中打开Grub
sudo gedit /boot/grub/grub.cfg
sudo vi /boot/grub/grub.cfg
取决于你的编辑器
完整的Grub文件，以我的为例子
#
# 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 $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
if [ "${initrdfail}" = 2 ]; then
set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
set next_entry="${prev_entry}"
set prev_entry=
save_env prev_entry
if [ "${next_entry}" ]; then
set initrdfail=2
fi
fi
if [ "${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 initrdfail {
if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
if [ -z "${initrdfail}" ]; then
set initrdfail=1
if [ -n "${boot_once}" ]; then
set prev_entry="${default}"
save_env prev_entry
fi
fi
save_env initrdfail
fi; fi
}
function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
if [ x$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$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
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
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
insmod gfxmenu
loadfont ($root)/boot/grub/themes/CyberRe/dejavu_14.pf2
loadfont ($root)/boot/grub/themes/CyberRe/droidlogo_bold_17.pf2
loadfont ($root)/boot/grub/themes/CyberRe/droidlogo_bold_20.pf2
loadfont ($root)/boot/grub/themes/CyberRe/droidlogo_bold_26.pf2
loadfont ($root)/boot/grub/themes/CyberRe/droidlogo_regular_12.pf2
loadfont ($root)/boot/grub/themes/CyberRe/droidlogo_regular_17.pf2
insmod png
set theme=($root)/boot/grub/themes/CyberRe/theme.txt
export theme
if [ "${recordfail}" = 1 ] ; then
set timeout=30
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=hidden
set timeout=100
# Fallback hidden-timeout code in case the timeout_style feature is
# unavailable.
elif sleep --interruptible 100 ; then
set timeout=0
fi
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
if [ "${1}" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ "${recordfail}" != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (在 /dev/nvme1n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-B15C-4C64' {
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B15C-4C64
else
search --no-floppy --fs-uuid --set=root B15C-4C64
fi
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
menuentry 'Ubuntu 21' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
initrd /boot/initrd.img-5.11.0-43-generic
}
submenu 'Ubuntu 的高级选项' $menuentry_id_option 'gnulinux-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
menuentry 'Ubuntu，Linux 5.11.0-43-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-43-generic-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-43-generic ...'
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-43-generic
}
menuentry 'Ubuntu, with Linux 5.11.0-43-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-43-generic-recovery-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-43-generic ...'
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro recovery nomodeset dis_ucode_ldr
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-43-generic
}
menuentry 'Ubuntu，Linux 5.11.0-41-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-41-generic ...'
linux /boot/vmlinuz-5.11.0-41-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-41-generic
}
menuentry 'Ubuntu, with Linux 5.11.0-41-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-recovery-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-41-generic ...'
linux /boot/vmlinuz-5.11.0-41-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro recovery nomodeset dis_ucode_ldr
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-41-generic
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
set timeout=10
fi
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
### 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 ###
启动项部分
BEGIN /etc/grub.d/30_os-prober
menuentry 'Windows Boot Manager (在 /dev/nvme1n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-B15C-4C64' {
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B15C-4C64
else
search --no-floppy --fs-uuid --set=root B15C-4C64
fi
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
menuentry 'Ubuntu 21' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
initrd /boot/initrd.img-5.11.0-43-generic
}
submenu 'Ubuntu 的高级选项' $menuentry_id_option 'gnulinux-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
menuentry 'Ubuntu，Linux 5.11.0-43-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-43-generic-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-43-generic ...'
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-43-generic
}
menuentry 'Ubuntu, with Linux 5.11.0-43-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-43-generic-recovery-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-43-generic ...'
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro recovery nomodeset dis_ucode_ldr
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-43-generic
}
menuentry 'Ubuntu，Linux 5.11.0-41-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-41-generic ...'
linux /boot/vmlinuz-5.11.0-41-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-41-generic
}
menuentry 'Ubuntu, with Linux 5.11.0-41-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-recovery-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-41-generic ...'
linux /boot/vmlinuz-5.11.0-41-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro recovery nomodeset dis_ucode_ldr
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-41-generic
}
启动项分为直接启动项，和菜单启动项：
- 直接的由menuentry开头，可以直接进入启动
menuentry 'Windows Boot Manager (在 /dev/nvme1n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-B15C-4C64' {
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B15C-4C64
else
search --no-floppy --fs-uuid --set=root B15C-4C64
fi
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
- 菜单的由menuentry开头，会进入二级菜单，再次进行启动项选择
submenu 'Ubuntu 的高级选项' $menuentry_id_option 'gnulinux-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
menuentry 'Ubuntu，Linux 5.11.0-43-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-43-generic-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-43-generic ...'
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-43-generic
}
menuentry 'Ubuntu, with Linux 5.11.0-43-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-43-generic-recovery-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-43-generic ...'
linux /boot/vmlinuz-5.11.0-43-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro recovery nomodeset dis_ucode_ldr
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-43-generic
}
menuentry 'Ubuntu，Linux 5.11.0-41-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-advanced-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-41-generic ...'
linux /boot/vmlinuz-5.11.0-41-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro quiet splash $vt_handoff
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-41-generic
}
menuentry 'Ubuntu, with Linux 5.11.0-41-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.0-41-generic-recovery-77ce85c5-1b12-4291-85c6-20b1fd8919bd' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
else
search --no-floppy --fs-uuid --set=root 77ce85c5-1b12-4291-85c6-20b1fd8919bd
fi
echo '载入 Linux 5.11.0-41-generic ...'
linux /boot/vmlinuz-5.11.0-41-generic root=UUID=77ce85c5-1b12-4291-85c6-20b1fd8919bd ro recovery nomodeset dis_ucode_ldr
echo '载入初始化内存盘...'
initrd /boot/initrd.img-5.11.0-41-generic
}
直接启动项的内容：
两种写法
menuentry 'Windows Boot Manager (在 /dev/nvme1n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-B15C-4C64' {
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B15C-4C64
else
search --no-floppy --fs-uuid --set=root B15C-4C64
fi
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
menuentry 'Window10' {
insmod ntfs
set root=(hd0,msdos1)
search –no-floppy –fs-uuid –set 1C12FC8012FC5FE6
chainloader +1
}
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