- 找到grub配置文件
/etc/default/grub - 修改GRUB_TIMEOUT值,默认是10,可修改为任意非负整数
# 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_STYLE=hidden
GRUB[......]