进入grub引导界面
#GRUB_TIMEOUT_SYTLE=hidden
GRUB_TIMEOUT=10
GRUB_CMDLINE_LINUX_DEFAULT="text"
update-grub
bionic: windows subsystem linux
/etc/apt/sources.list
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
apt update
apt autoremove
apt upgrade
vimrc
colorscheme ron
:syntax on
filetype on
filetype plugin on
filetype indent on
set sts=4
set shiftwidth=4
set backspace=2
set tabstop=4
set showmode
set nu
set nohlsearc