我的 GRUB2 ver 2.02~beta2-36ubuntu3.4 无法自动启动到 Ubuntu。尽管我只列出了 1 个操作系统，但它一直进入 GRUB OS 启动选择屏幕。我自己尝试了多种解决方法，但无法让它直接启动到 Ubuntu。我尝试修改我的 /boot/default/grub.cfg 文件中的某些值，以下是它当前的设置：
# 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="saved"
GRUB_SAVEDDEFAULT=true
GRUB_HIDDEN_TIMEOUT="3"
GRUB_HIDDEN_TIMEOUT_QUIET="false"
GRUB_TIMEOUT="0"
GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
#GRUB_BACKGROUND="/boot/grub/kali.png"
# 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"
export GRUB_MENU_PICTURE="/boot/grub/kali.png"
GRUB_DISABLE_OS_PROBER="true"
答案1
为什么要把事情复杂化？回到简单的 GRUB 配置。
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_CMDLINE_LINUX=""