更新：现在似乎已经修复了，我不再获得 Grub 菜单，请将其标记为关闭。
我安装了 Ubuntu 12.10 并进行了全盘加密（全新安装），问题是 GRUB 菜单始终显示，我无法将超时设置为 0 并将其默认为 Ubuntu。我只安装了一个操作系统，不需要 GRUB 菜单，菜单上也没有计时器，也就是说，它会一直显示，直到我选择 Ubuntu。我尝试更新 GRUB 配置/etc/默认/grub将超时设置为 0，但没有任何作用 :(
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=0
的内容/boot/grub/grub.cfg
~ ➔ cat /boot/grub/grub.cfg
#
# 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 $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default="0"
if [ x"${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 recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if loadfont unicode ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_IN
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
set timeout=-1
else
set timeout=0
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
clear
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${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 [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-72be0f39-6fe6-43dd-8ea0-314c73e8e238' {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$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 53782a70-4418-4b61-a7fc-a147ba166ca1
else
search --no-floppy --fs-uuid --set=root 53782a70-4418-4b61-a7fc-a147ba166ca1
fi
linux /vmlinuz-3.5.0-17-generic root=/dev/mapper/ubuntu-root ro quiet splash $vt_handoff
initrd /initrd.img-3.5.0-17-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-72be0f39-6fe6-43dd-8ea0-314c73e8e238' {
menuentry 'Ubuntu, with Linux 3.5.0-17-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-17-generic-advanced-72be0f39-6fe6-43dd-8ea0-314c73e8e238' {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$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 53782a70-4418-4b61-a7fc-a147ba166ca1
else
search --no-floppy --fs-uuid --set=root 53782a70-4418-4b61-a7fc-a147ba166ca1
fi
echo 'Loading Linux 3.5.0-17-generic ...'
linux /vmlinuz-3.5.0-17-generic root=/dev/mapper/ubuntu-root ro quiet splash $vt_handoff
echo 'Loading initial ramdisk ...'
initrd /initrd.img-3.5.0-17-generic
}
menuentry 'Ubuntu, with Linux 3.5.0-17-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-17-generic-recovery-72be0f39-6fe6-43dd-8ea0-314c73e8e238' {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$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 53782a70-4418-4b61-a7fc-a147ba166ca1
else
search --no-floppy --fs-uuid --set=root 53782a70-4418-4b61-a7fc-a147ba166ca1
fi
echo 'Loading Linux 3.5.0-17-generic ...'
linux /vmlinuz-3.5.0-17-generic root=/dev/mapper/ubuntu-root ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /initrd.img-3.5.0-17-generic
}
}
### 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,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 53782a70-4418-4b61-a7fc-a147ba166ca1
else
search --no-floppy --fs-uuid --set=root 53782a70-4418-4b61-a7fc-a147ba166ca1
fi
linux16 /memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$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 53782a70-4418-4b61-a7fc-a147ba166ca1
else
search --no-floppy --fs-uuid --set=root 53782a70-4418-4b61-a7fc-a147ba166ca1
fi
linux16 /memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
if [ "x${timeout}" != "x-1" ]; then
if keystatus; then
if keystatus --shift; then
set timeout=-1
else
set timeout=0
fi
else
if sleep --interruptible 3 ; then
set timeout=0
fi
fi
fi
### 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 ###
答案1
sudo update-grub编辑文件后你运行了吗/etc/default/grub？除非你这样做，否则更改不会生效。
答案2
也许 grub 定制器可以做到，尝试使用管理员权限管理设置
sudo add-apt-repository ppa:danielrichter2007/grub-customizer && sudo apt-get update && sudo apt-get install grub-customizer
sudo grub-customizer
