Ubuntu configures domestic sources

Ubuntu源

Each Ubuntu release has its own set of four official repositories:

• Main– Free and open source software supported by Canonical
• security– Ubuntu used to refer to security updates
• updates– Non-security updates
• proposed-updates– Pre-update, small beta version-----not recommended to be enabled
• backports– Backup update, used to update functions of some old versions of software-----generally not enabled
• Universe– Community-maintained free and open source software
• Restricted– Proprietary drivers for the device
• multiverse– Software restricted by copyright or legal issues, like Debian non-free, is non-free software, that is, commercial software.

Reference:
https://www.cnblogs.com/pengdonglin137/p/3342654.html

Using the configuration generator

HKUST source configuration generator
https://mirrors.ustc.edu.cn/repogen/

Install dependency packages

# 如果访问https源需要apt-transport-https支持
apt install apt-transport-https -y

Open apt source configuration file

vim /etc/apt/sources.list

Domestic apt source

Reference: https://mirrors.ustc.edu.cn/help/ubuntu.html
If you want to use it 其他版本, just focalreplace it with 其他版本代号:

• 22.04：jammy；
• 20.04：focal；
• 18.04：bionic；
• 16.04：xenial；
• 14.04：trusty。

Dayuan of Science and Technology of China

## 中科大源

# main
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse

# security安全更新
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse

# updates非安全更新
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse

# proposed预更新,小 beta 版-----不建议启用
#deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
#deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

# backports后备更新,用来对某些老版本软件进行功能更新-----一般不启用
#deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
#deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

# universe社区维护的自由软件--https国内访问不了
deb http://archive.ubuntu.com/ubuntu/ trusty main universe restricted multiverse

Aliyuan

# main
deb https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse

# security安全更新
deb https://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse

# updates非安全更新
deb https://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse

# proposed预更新,小 beta 版-----不建议启用
#deb https://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
#deb-src https://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

# backports后备更新,用来对某些老版本软件进行功能更新-----一般不启用
#deb https://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
#deb-src https://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

# universe社区维护的自由软件--https国内访问不了
deb http://archive.ubuntu.com/ubuntu/ trusty main universe restricted multiverse