Ubuntu22.04 更换源
1、在Ubuntu 22.04中更新软件源，可以编辑/etc/apt/sources.list文件，将现有的源地址替换为新的源地址
sudo nano /etc/apt/sources.list
deb http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ jammy main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse
2、更新软件源：
sudo apt update