Ubuntu换源

Ubuntu 22.04 LTS

一、备份源文件

终端执行

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

二、修改源文件

终端执行

sudo chmod 777 /etc/apt/sources.list #更改文件权限使其可编辑
sudo gedit /etc/apt/sources.list #打开文件进行编辑

更换清华源

将以下内容替换源文件内的内容

# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse

# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
# # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
# deb-src http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse
# # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverse

同理也可替换为阿里源

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

中科大源

deb https: //mirrors .ustc.edu.cn /ubuntu/  bionic main restricted universe multiverse
deb https: //mirrors .ustc.edu.cn /ubuntu/  bionic-updates main restricted universe multiverse
deb https: //mirrors .ustc.edu.cn /ubuntu/  bionic-backports main restricted universe multiverse
deb https: //mirrors .ustc.edu.cn /ubuntu/  bionic-security main restricted universe multiverse
deb https: //mirrors .ustc.edu.cn /ubuntu/  bionic-proposed main restricted universe multiverse
deb-src https: //mirrors .ustc.edu.cn /ubuntu/  bionic main restricted universe multiverse
deb-src https: //mirrors .ustc.edu.cn /ubuntu/  bionic-updates main restricted universe multiverse
deb-src https: //mirrors .ustc.edu.cn /ubuntu/  bionic-backports main restricted universe multiverse
deb-src https: //mirrors .ustc.edu.cn /ubuntu/  bionic-security main restricted universe multiverse
deb-src https: //mirrors .ustc.edu.cn /ubuntu/  bionic-proposed main restricted universe multiverse

三、更新源文件

终端执行

sudo apt update
sudo apt upgrade