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社区首页 >专栏 >Linux Ubuntu 修改Grub，添加删除启动项，初步辨析Grub文件。

Linux Ubuntu 修改Grub，添加删除启动项，初步辨析Grub文件。

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风骨散人Chiam
发布于 2022-01-06 15:08:17
13.4K0
发布于 2022-01-06 15:08:17
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文章被收录于专栏：CSDN旧文CSDN旧文

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

代码语言：javascript
复制
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

代码语言：javascript
复制
#
# 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

代码语言：javascript
复制
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：

  1. 直接的由menuentry开头，可以直接进入启动
代码语言：javascript
复制
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
}
  1. 菜单的由menuentry开头，会进入二级菜单，再次进行启动项选择
代码语言：javascript
复制
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：

代码语言：javascript
复制
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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原始发表：2021-12-24 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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目录
  • 使用场景：
  • 在Ubuntu 中打开Grub
  • 完整的Grub文件，以我的为例子
  • 启动项部分
  • BEGIN /etc/grub.d/30_os-prober
  • 直接启动项的内容：
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