配置文件路径
/etc/apt/sources.list
阿里
deb http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs) main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs) main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ $(lsb_release -cs)-proposed main restricted universe multiverse
清华
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs) main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs) main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-security main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-proposed main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -cs)-proposed main restricted universe multiverse
更新软件包列表
sudo apt update
升级系统软件包
sudo apt upgrade