Grub 菜单工作但隐藏,无法使其可见

rez*_*afa 3 boot grub2 dual-boot 19.04

升级到 19.04 后,Grub 菜单已隐藏。它仍然有效,我可以通过盲目地找到该条目并按 Enter 键启动到 Windows 10 和 Ubuntu。我尝试编辑/etc/default/grub并运行sudo update-grub后但没有改变。现在的样子是这样的:

# 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_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
GRUB_TIMEOUT_STYLE=menu
GRUB_HIDDEN_TIMEOUT_QUIET=false

# 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"
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我也无法使用ShiftEsc使其可见。按其中任何一个后,Grub 不再工作,我需要关闭然后打开我的笔记本电脑才能启动。

编辑:不确定它是否有帮助,但我刚刚意识到,如果我在退出 BIOS 时进入 BIOS,则 grub 菜单会毫无问题地显示。下次启动时,grub 菜单将再次消失。

小智 5

我有完全相同的问题。

在尝试了几种解决方案后,其中一个成功了(详细解释以防其他人需要):

  1. /etc/default/grub通过在正确的文件夹中在终端中运行来进行编辑:

    sudo gedit grub
    
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  2. 取消注释该行#GRUB_TERMINAL=console。正确的版本应为:

    GRUB_TERMINAL=console
    
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  3. 保存文件。

  4. 在终端中运行:

    sudo update-grub
    
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  5. 重新开始。现在应该出现 GRUB 菜单。

注意:我不知道为什么,但图形终端无法工作。控制台有点丑,但我不在乎。