Grub 启动到恢复模式

Question

当我启动 grub 时不显示（仅安装了 ubuntu）我希望 grub 显示一两秒（shift 似乎没有显示）。我的主要问题是 grub 启动到我认为是恢复模式的状态，我可以以自己和 startx 的身份登录，但这显然是一种正确的痛苦。有人可以告诉我如何解决这个问题吗？

Grub.cfg：

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/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
  load_env
fi
set default="1"
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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,6)'
search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
insmod ext2
set root='(hd0,6)'
search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ ${recordfail} = 1 ]; then
  set timeout=-1
else
  set timeout=10
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 ###
menuentry 'Ubuntu, with Linux 2.6.32-25-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
    linux   /boot/vmlinuz-2.6.32-25-generic root=UUID=1cd98d8a-97b3-4f25-9da2-e7128ef6dcba ro   quiet splash
    initrd  /boot/initrd.img-2.6.32-25-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-25-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
    echo    'Loading Linux 2.6.32-25-generic ...'
    linux   /boot/vmlinuz-2.6.32-25-generic root=UUID=1cd98d8a-97b3-4f25-9da2-e7128ef6dcba ro single 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-2.6.32-25-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-21-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
    linux   /boot/vmlinuz-2.6.32-21-generic root=UUID=1cd98d8a-97b3-4f25-9da2-e7128ef6dcba ro   quiet splash
    initrd  /boot/initrd.img-2.6.32-21-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-21-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
    echo    'Loading Linux 2.6.32-21-generic ...'
    linux   /boot/vmlinuz-2.6.32-21-generic root=UUID=1cd98d8a-97b3-4f25-9da2-e7128ef6dcba ro single 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-2.6.32-21-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
    linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod ext2
    set root='(hd0,6)'
    search --no-floppy --fs-uuid --set 1cd98d8a-97b3-4f25-9da2-e7128ef6dcba
    linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
if [ ${timeout} != -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/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 ###

Answer 1

/boot/grub/grub.cfg不应直接编辑。相反，GRUB_TIMEOUT可以在/etc/default/grub以下示例中配置该文件的示例：

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.

GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# 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_LINUX_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

GRUB_DEFAULT设置默认菜单项。例如，GRUB_DEFAULT=0突出显示第一个菜单项。1 将是第二个。也许恢复会话被设置为默认值？

在只有一个操作系统的机器上，比如你的，GRUB_HIDDEN_TIMEOUT=0隐藏菜单。确保此行已被注释。如果存在多个操作系统，则忽略此设置。还要确保该GRUB_TIMEOUT值大于 0。这是自动引导默认条目之前的秒数。

/etc/default/grub确保在任何更改后运行sudo update-grub以更新您的配置。

更多详情可在这找到：

https://help.ubuntu.com/community/Grub2