【Ubuntu 换源 】

从 http://kernel.ubuntu.com/~kernel-ppa/mainline/中选择需要的版本：
根据你的系统架构下载 *.deb 文件，直接点击下载

安装*.deb
sudo dpkg -i *.deb

sudo update-grub

双系统的话，直接退出重启

进入advance选项，选择刚才安装的内核版本，进入即可

uname -ar
查看内核版本

换源
更改 /etc/apt/sources.list 文件内容
https://blog.youkuaiyun.com/angel725/article/details/131333086

aliyun 23.04

deb http://mirrors.aliyun.com/ubuntu/ lunar main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-backports main restricted universe multiverse

16.04

deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security multiverse

16.10 Yakkety

升级
sudo apt update
sudo apt upgrade
sudo do-release-upgrade -c
sudo do-release-upgrade
(好像不支持国内源，源的版本对上)