首先，抱歉，我的英语不好（我是法国人）！！
我刚刚购买了一台戴尔 Inspiron 13 二合一笔记本电脑，安装了 Kubuntu 21.10（无双启动），但在 GRUB 方面遇到了一点问题！
grub 菜单在启动时仍然可见，并有 30 秒倒计时......
我首先尝试使用 Grub 定制器更改配置，但没有结果。
然后我手动修改了 /etc/default/grub，再加上 sudo update-grub，没有结果。
我也尝试过本页中有关 os_prober 的解释：https://gist.github.com/LeahCim/9332432但仍然没有结果...
实际上，我的 /etc/default/grub 是
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_DISABLE_OS_PROBER=true
GRUB_TIMEOUT_STYLE="hidden"
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL="console"
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE="640x480"
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID="true"
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
问候
编辑 ：
根据这里的建议，我将 GRUB_HIDDEN_TIMEOUT_QUIET= 从 false 更改为 true，但效果并不好。即使将 GRUB_HIDDEN_TIMEOUT= 从 2 更改为 0 也没有任何变化。
事实上，无论我在 /etc/default/grub 中做了什么更改，似乎对 Grub 都没有影响；就好像 GRUB 不关心 /boot/grub/grub.cfg，或者 grub.cfg 不关心 /etc/default/grub，即使在“sudo update-grub”之后也是如此。
编辑2：
无论我怎么尝试，都没有任何变化……我尝试在 grub.cfg 中找到一些东西，但这对我来说太难了。我看到了“timeout=30”（第 109 行），它对应于 30 秒倒计时，但我不知道该怎么做，也不知道该如何更改它。你能帮帮我吗？！！这是文件：
#
# 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="${default}"
save_env prev_entry
fi
fi
save_env initrdfail
fi; fi
}
function recordfail {
set recordfail=1
# GRUB lacks write support for lvm, so recordfail support is disabled.
}
function load_video {
if [ x$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$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
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=fr_FR
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
set timeout=30
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=hidden
set timeout=0
# Fallback hidden-timeout code in case the timeout_style feature is
# unavailable.
elif sleep --interruptible 0 ; then
set timeout=0
fi
fi
if [ $grub_platform = efi ]; then
set timeout=30
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
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
#set_background_image "images/tile.png";
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 0,0,0; then
clear
fi
### 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
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
fi
linux /boot/vmlinuz-5.13.0-21-generic root=/dev/mapper/vgkubuntu-root ro quiet splash $vt_handoff
initrd /boot/initrd.img-5.13.0-21-generic
}
submenu 'Options avancées pour Ubuntu' $menuentry_id_option 'gnulinux-advanced-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
menuentry 'Ubuntu, avec Linux 5.13.0-21-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.0-21-generic-advanced-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
fi
echo 'Chargement de Linux 5.13.0-21-generic…'
linux /boot/vmlinuz-5.13.0-21-generic root=/dev/mapper/vgkubuntu-root ro quiet splash $vt_handoff
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.13.0-21-generic
}
menuentry 'Ubuntu, avec Linux 5.13.0-21-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.0-21-generic-recovery-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
fi
echo 'Chargement de Linux 5.13.0-21-generic…'
linux /boot/vmlinuz-5.13.0-21-generic root=/dev/mapper/vgkubuntu-root ro recovery nomodeset dis_ucode_ldr
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.13.0-21-generic
}
menuentry 'Ubuntu, avec Linux 5.13.0-20-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.0-20-generic-advanced-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
fi
echo 'Chargement de Linux 5.13.0-20-generic…'
linux /boot/vmlinuz-5.13.0-20-generic root=/dev/mapper/vgkubuntu-root ro quiet splash $vt_handoff
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.13.0-20-generic
}
menuentry 'Ubuntu, avec Linux 5.13.0-20-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.0-20-generic-recovery-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
fi
echo 'Chargement de Linux 5.13.0-20-generic…'
linux /boot/vmlinuz-5.13.0-20-generic root=/dev/mapper/vgkubuntu-root ro recovery nomodeset dis_ucode_ldr
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.13.0-20-generic
}
menuentry 'Ubuntu, avec Linux 5.13.0-19-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.0-19-generic-advanced-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
fi
echo 'Chargement de Linux 5.13.0-19-generic…'
linux /boot/vmlinuz-5.13.0-19-generic root=/dev/mapper/vgkubuntu-root ro quiet splash $vt_handoff
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.13.0-19-generic
}
menuentry 'Ubuntu, avec Linux 5.13.0-19-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.0-19-generic-recovery-5a9194c9-d3ba-4f02-925e-a6bf54b49c06' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod lvm
insmod ext2
set root='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvmid/WJ7HiC-1808-IY8B-ZnJg-m2JO-X2Sp-eon3xJ/0mBBLm-PWoV-07pO-6ItQ-H0vK-80Oc-7ctcrG' 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
else
search --no-floppy --fs-uuid --set=root 5a9194c9-d3ba-4f02-925e-a6bf54b49c06
fi
echo 'Chargement de Linux 5.13.0-19-generic…'
linux /boot/vmlinuz-5.13.0-19-generic root=/dev/mapper/vgkubuntu-root ro recovery nomodeset dis_ucode_ldr
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.13.0-19-generic
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/25_pre-os-prober ###
set timeout_bak=${timeout}
set timeout_style_bak=${timeout_style}
### END /etc/grub.d/25_pre-os-prober ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###
### BEGIN /etc/grub.d/35_post-os-prober ###
set timeout=${timeout_bak}
set timeout_style=${timeout_style_bak}
### END /etc/grub.d/35_post-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 ${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 ###
我在 KDE 分区管理器中注意到我的 NVME 驱动器出现了 2 次：第一次是 /dev/nvme0n1（有 2 个分区：/dev/nvme0n1p1 安装在 /boot/efi 512Mio FAT32 上，/dev/nvme0n1p2 安装在 vgkubuntu 476,44Gio LVM2 PV 上）和第二次 /dev/vgkubuntu（有 2 个分区：/dev/vgkubuntu/root 安装在 / 475,48Gio EXT4 上，/dev/vgkubuntu/swap_1 980Mio linuxswap 上）。这是正常的吗？这能解释我的 GRUB 问题吗？
答案1
我相信你需要改变
GRUB_HIDDEN_TIMEOUT=2
到
GRUB_HIDDEN_TIMEOUT=0
您还需要sudo update-grub在对配置文件进行更改后运行。
您绝对不需要 GRUB 定制器。在我看来，GRUB 定制器是一种祸害：大多数人都希望启动尽可能安全和稳定。将不太稳定、不太安全、花哨的东西安装到一个只能看到几秒钟的基本低级实用程序上有点愚蠢。但 Linux 最好的一点是，您有很多选择，包括不太好的选择。用配置隐藏 GRUB 绝对是更好的选择。