su -
vi /etc/default/grub

....."quiet nomodeset"

update-grub

vi /etc/apt/sources.list

# deb cdrom...   (注释掉第二个cdrom行)

apt install sudo

apt remove vim-common

apt install vim

vi /etc/sudoers

root ALL=(ALL:ALL) ALL    （"yyp"复制这一行粘贴到下一行）

mf ALL=(ALL:ALL) PASSWD:ALL

apt update

apt upgrade

sudo vi /etc/default/grub

-----------------------

GRUB_DEFAULT=0

GRUB_TIMEOUT=0

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`

GRUB_CMDLINE_LINUX_DEFAULT="quiet"

GRUB_CMDLINE_LINUX=""

------------------------

sudo update-grub