如何在命令行中列出GRUB的“菜单”？
Answers:
使用 awk
awk -F\' '/menuentry / {print $2}' /boot/grub/grub.cfg
为您提供的所有菜单条目的完整列表grub.cfg。
您无需将grep传递给awk，awk会与/ foo /进行模式匹配
—
Panther
awk -F\' '/menuentry / {print $2}' /boot/grub/grub.cfg
AB我同意@ bodhi.zazen。如果您进行编辑并给我留下笔记，我会回来投票！
—
Fabby
@Fabby给您的便条。天哪，这些是我的第一步
—
AB
awk。：\
将条目号添加到输出：
—
mikezter
awk -F\' '/menuentry / { print i++, $2}' /boot/grub/grub.cfg用于grub-set-default
彩色屏幕截图（简短版）
使用鼠标滚轮，Home，End，PgUp，PgDn，↑和↓键导航菜单。
文字萤幕撷取画面（加长版）
bash脚本使用whiptail而不是dialog显示菜单。一个优点是您可以将终端图像以文本形式复制到剪贴板，然后以
文本形式粘贴到该网站中。其他优点包括：
- 鼠标滚轮支持
- 性能更快
dialog在Ubuntu Server或Lubuntu中默认未安装。whiptail是默认包含的。
这是一个文本屏幕截图：
Grub Version: 2.02~beta2-36ubuntu3.15
┌─────────┤ Use arrow, page, home & end keys. Tab toggle option ├──────────┐
│ Menu No. --------------- Menu Name --------------- │
│ │
│ 0 Ubuntu ↑ │
│ 1 Advanced options for Ubuntu ▮ │
│ 1>0 Ubuntu, with Linux 4.14.31-041431-generic ▒ │
│ 1>1 Ubuntu, with Linux 4.14.31-041431-generic (upstart) ▒ │
│ 1>2 Ubuntu, with Linux 4.14.31-041431-generic (recovery mode) ▒ │
│ 1>3 Ubuntu, with Linux 4.14.30-041430-generic ▒ │
│ 1>4 Ubuntu, with Linux 4.14.30-041430-generic (upstart) ▒ │
│ 1>5 Ubuntu, with Linux 4.14.30-041430-generic (recovery mode) ▒ │
│ 1>6 Ubuntu, with Linux 4.14.27-041427-generic ▒ │
│ 1>7 Ubuntu, with Linux 4.14.27-041427-generic (upstart) ▒ │
│ 1>8 Ubuntu, with Linux 4.14.27-041427-generic (recovery mode) ▒ │
│ 1>9 Ubuntu, with Linux 4.14.24-041424-generic ▒ │
│ 1>10 Ubuntu, with Linux 4.14.24-041424-generic (upstart) ▒ │
│ 1>11 Ubuntu, with Linux 4.14.24-041424-generic (recovery mode) ▒ │
│ 1>12 Ubuntu, with Linux 4.14.23-041423-generic ▒ │
│ 1>13 Ubuntu, with Linux 4.14.23-041423-generic (upstart) ↓ │
│ │
│ │
│ <Display Grub Boot> <Exit> │
│ │
└──────────────────────────────────────────────────────────────────────────┘
突出显示条目，然后按Enter
使用导航键突出显示一个选项，并按Enter该按钮查看grub引导时加载的内核前驱动程序以及传递grub给内核的引导参数：
menuentry 'Ubuntu, with Linux 4.14.27-041427-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.14.27-041427-generic-advanced-f3f8e7bc-b337-4194-88b8-3a513f6be55b' {
recordfail
savedefault
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 f3f8e7bc-b337-4194-88b8-3a513f6be55b
else
search --no-floppy --fs-uuid --set=root f3f8e7bc-b337-4194-88b8-3a513f6be55b
fi
echo 'Loading Linux 4.14.27-041427-generic ...'
linux /boot/vmlinuz-4.14.27-041427-generic root=UUID=f3f8e7bc-b337-4194-88b8-3a513f6be55b ro quiet splash loglevel=0 vga=current udev.log-priority=3 fastboot kaslr acpiphp.disable=1 crashkernel=384M-2G:128M,2G-:256M $vt_handoff
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-4.14.27-041427-generic
}
Press <Enter> to continue
grub-menu.sh bash脚本
grub-menu.sh 只有一种调整方式：
# Default for hide duplicate and triplicate options with (upstart) and (recovery mode)?
HideUpstartRecovery=false将值设置为true（隐藏额外的条目）或false（列出所有条目）。
使用以下命令调用脚本时，可以覆盖默认格式：
grub-menu.sh short要么：
grub-menu.sh long代码：
#!/bin/bash
# NAME: grub-menu.sh
# PATH: $HOME/bin
# DESC: Written for AU Q&A: /ubuntu//q/1019213/307523
# DATE: Apr 5, 2018. Modified: July 27, 2019
# UPDT: Scroll bar was outside of dialog box. Move windo border line.
# $TERM variable may be missing when called via desktop shortcut
CurrentTERM=$(env | grep TERM)
if [[ $CurrentTERM == "" ]] ; then
notify-send --urgency=critical "$0 cannot be run from GUI without TERM environment variable."
exit 1
fi
# Send output to secondary terminal such that previous history isn't cleared on exit
tput smcup
AllMenusArr=() # All menu options.
# Default for hide duplicate and triplicate options with (upstart) and (recovery mode)?
HideUpstartRecovery=false
if [[ $1 == short ]] ; then
HideUpstartRecovery=true # override default with first passed parameter "short"
elif [[ $1 == long ]] ; then
HideUpstartRecovery=false # override default with first passed parameter "long"
fi
SkippedMenuEntry=false # Don't change this value, automatically maintained
InSubMenu=false # Within a line beginning with `submenu`?
InMenuEntry=false # Within a line beginning with `menuentry` and ending in `{`?
NextMenuEntryNo=0 # Next grub internal menu entry number to assign
# Major / Minor internal grub submenu numbers, ie `1>0`, `1>1`, `1>2`, etc.
ThisSubMenuMajorNo=0
NextSubMenuMinorNo=0
CurrTag="" # Current grub internal menu number, zero based
CurrText="" # Current grub menu option text, ie "Ubuntu", "Windows...", etc.
SubMenuList="" # Only supports 10 submenus! Numbered 0 to 9. Future use.
while read -r line; do
# Example: " }"
BlackLine="${line//[[:blank:]]/}" # Remove all whitespace
if [[ $BlackLine == "}" ]] ; then
# Add menu option in buffer
if [[ $SkippedMenuEntry == true ]] ; then
NextSubMenuMinorNo=$(( $NextSubMenuMinorNo + 1 ))
SkippedMenuEntry=false
continue
fi
if [[ $InMenuEntry == true ]] ; then
InMenuEntry=false
if [[ $InSubMenu == true ]] ; then
NextSubMenuMinorNo=$(( $NextSubMenuMinorNo + 1 ))
else
NextMenuEntryNo=$(( $NextMenuEntryNo + 1 ))
fi
elif [[ $InSubMenu == true ]] ; then
InSubMenu=false
NextMenuEntryNo=$(( $NextMenuEntryNo + 1 ))
else
continue # Future error message?
fi
# Set maximum CurrText size to 68 characters.
CurrText="${CurrText:0:67}"
AllMenusArr+=($CurrTag "$CurrText")
fi
# Example: "menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu" ...
# "submenu 'Advanced options for Ubuntu' $menuentry_id_option" ...
if [[ $line == submenu* ]] ; then
# line starts with `submenu`
InSubMenu=true
ThisSubMenuMajorNo=$NextMenuEntryNo
NextSubMenuMinorNo=0
SubMenuList=$SubMenuList$ThisSubMenuMajorNo
CurrTag=$NextMenuEntryNo
CurrText="${line#*\'}"
CurrText="${CurrText%%\'*}"
AllMenusArr+=($CurrTag "$CurrText") # ie "1 Advanced options for Ubuntu"
elif [[ $line == menuentry* ]] && [[ $line == *"{"* ]] ; then
# line starts with `menuentry` and ends with `{`
if [[ $HideUpstartRecovery == true ]] ; then
if [[ $line == *"(upstart)"* ]] || [[ $line == *"(recovery mode)"* ]] ; then
SkippedMenuEntry=true
continue
fi
fi
InMenuEntry=true
if [[ $InSubMenu == true ]] ; then
: # In a submenu, increment minor instead of major which is "sticky" now.
CurrTag=$ThisSubMenuMajorNo">"$NextSubMenuMinorNo
else
CurrTag=$NextMenuEntryNo
fi
CurrText="${line#*\'}"
CurrText="${CurrText%%\'*}"
else
continue # Other stuff - Ignore it.
fi
done < /boot/grub/grub.cfg
LongVersion=$(grub-install --version)
ShortVersion=$(echo "${LongVersion:20}")
DefaultItem=0
if [[ $HideUpstartRecovery == true ]] ; then
MenuText="Menu No. ----------- Menu Name -----------"
else
MenuText="Menu No. --------------- Menu Name ---------------"
fi
while true ; do
Choice=$(whiptail --clear \
--title "Use arrow, page, home & end keys. Tab toggle option" \
--backtitle "Grub Version: $ShortVersion" \
--ok-button "Display Grub Boot" \
--cancel-button "Exit" \
--default-item "$DefaultItem" \
--menu "$MenuText" 24 80 16 \
"${AllMenusArr[@]}" \
2>&1 >/dev/tty)
clear
if [[ $Choice == "" ]]; then break ; fi
DefaultItem=$Choice
for (( i=0; i < ${#AllMenusArr[@]}; i=i+2 )) ; do
if [[ "${AllMenusArr[i]}" == $Choice ]] ; then
i=$i+1
MenuEntry="menuentry '"${AllMenusArr[i]}"'"
break
fi
done
TheGameIsAfoot=false
while read -r line ; do
if [[ $line = *"$MenuEntry"* ]]; then TheGameIsAfoot=true ; fi
if [[ $TheGameIsAfoot == true ]]; then
echo $line
if [[ $line = *"}"* ]]; then break ; fi
fi
done < /boot/grub/grub.cfg
read -p "Press <Enter> to continue"
done
# Restore output to primary terminal
tput rmcup
exit 0确实，这已经使我烦恼了一年多-所以我做了一个快速而肮脏的脚本来做到这一点。希望这对其他人有帮助吗？
这会将名称堆叠在推/弹出队列中，但不将菜单索引堆叠在列表中，这样可能会更好，但是我已经尽力了。
gawk 'BEGIN {
l=0
menuindex= 0
stack[t=0] = 0
}
function push(x) { stack[t++] = x }
function pop() { if (t > 0) { return stack[--t] } else { return "" } }
{
if( $0 ~ /.*menu.*{.*/ )
{
push( $0 )
l++;
} else if( $0 ~ /.*{.*/ )
{
push( $0 )
} else if( $0 ~ /.*}.*/ )
{
X = pop()
if( X ~ /.*menu.*{.*/ )
{
l--;
match( X, /^[^'\'']*'\''([^'\'']*)'\''.*$/, arr )
if( l == 0 )
{
print menuindex ": " arr[1]
menuindex++
submenu=0
} else
{
print " " (menuindex-1) ">" submenu " " arr[1]
submenu++
}
}
}
}' /boot/grub/grub.cfg
在这里，您可以从我的盒子中看到一个屏幕抓图，显示它正在运行
正如在2019/8的评论中所要求的那样，我上面提到了做一个``临时启动''。这个想法最初是从我的脚本开始的，而temp boot方法来自另一篇文章，它是这样的
- 将GRUB_DEFAULT设置为GRUB_DEFAULT = saved
# vi /etc/default/grub - 更新/ boot中的grub配置
# sudo update-grub - 设置要加载的默认操作系统（每次重启计算机时都会加载）
# sudo grub-set-default 0 - 当需要加载其他操作系统时（数字是/boot/grub/grub.cfg中的操作系统菜单号，这将在下次重新引导期间仅加载一次其他操作系统-手动重新启动）：
# sudo grub-reboot 4
+1我喜欢您的答案中的
—
WinEunuuchs2Unix
push和pop命令。希望我在写答案之前认识他们。
您还可以共享grub-tempboot.sh吗？
—
Autodidact
test1.将GRUB_DEFAULT设置为GRUB_DEFAULT = saved（/ etc / default / grub）2.在/ boot中更新grub配置#sudo update-grub 3.设置要加载的默认操作系统（每次重新启动计算机时都会加载）＃sudo grub -set-default 0 4.当需要加载其他操作系统时（数字是/boot/grub/grub.cfg中的操作系统菜单号，它将在下次重新引导期间仅加载一次其他操作系统-重新引导以手动启动）： sudo grub-reboot 4
这应该是正确的“字符串” ...
awk -F\' '/^menuentry / {print $2}' /boot/grub/grub.cfg|cat -n|awk '{print $1-1,$1="",$0}'
最后一个管道删除每行开头的空白，并根据grub数字条目更正数字顺序。样本输出：
0 Ubuntu
1 Memory test (memtest86+)
2 Memory test (memtest86+, serial console 115200)
3 Windows 10 (su /dev/sdc1)
如果您想查看所有条目以及高级条目，则可以使用
awk -F\' '/(^|| )nuentry / {print $2}' /boot/grub/grub.cfg|cat -n|awk '{print $1-1,$1="",$0}'
但数字顺序不适用于grub-set-default。
这仅显示顶层菜单。缺少“ 高级选项”子菜单。
—
WinEunuuchs2Unix
对我来说，这样做效果更好，因为它还打印了条目号
—
Zac
在OpenSuSE中，grub2-once提供了菜单ID，您可以在其他命令中使用该菜单ID。不过，对于Ubuntu用户来说并没有太大帮助。
# grub2-once --list
0 openSUSE Leap 42.3
1 Advanced options for openSUSE Leap 42.3>openSUSE Leap 42.3, with Linux 4.4.172-86-default
2 Advanced options for openSUSE Leap 42.3>openSUSE Leap 42.3, with Linux 4.4.172-86-default (recovery mode)
3 Advanced options for openSUSE Leap 42.3>openSUSE Leap 42.3, with Linux 4.4.165-81-default
4 Advanced options for openSUSE Leap 42.3>openSUSE Leap 42.3, with Linux 4.4.165-81-default (recovery mode)
5 Advanced options for openSUSE Leap 42.3>openSUSE Leap 42.3, with Linux 4.4.159-73-default
6 Advanced options for openSUSE Leap 42.3>openSUSE Leap 42.3, with Linux 4.4.159-73-default (recovery mode)
7 openSUSE 42.1 (x86_64) (on /dev/sda8)
8 Advanced options for openSUSE 42.1 (x86_64) (on /dev/sda8)>openSUSE Leap 42.1 (on /dev/sda8)
9 Advanced options for openSUSE 42.1 (x86_64) (on /dev/sda8)>openSUSE Leap 42.1, with Linux 4.1.39-56-default (on /dev/sda8)
10 Advanced options for openSUSE 42.1 (x86_64) (on /dev/sda8)>openSUSE Leap 42.1, with Linux 4.1.39-53-default (on /dev/sda8)
11 Advanced options for openSUSE 42.1 (x86_64) (on /dev/sda8)>Install 42.3 (on /dev/sda8)
您可能应该分享一次从grub2获得的位置
—
Charles Green
虽然这是关于ubuntu的，但我使用OpenSuSE并将所有grub v2命令安装为grub2-????。当我搜索如何获取grub菜单列表时，无论Linux的口味如何，都会发现此问题，因此我认为我的回答可能对其他人有所帮助。我没有意识到的是，grub2-once命令对于suse似乎是唯一的（在ubuntu中没有等效的grub-once）。我将修改答案以反映这一点
—
偏执狂
好像方便的工具...
—
Charles Green