首先备份一下原来的sources.list
cp /etc/apt/sources.list /etc/apt/sources.list.bak然后修改sources.list
sudo vi /etc/apt/sources.list然后根据你的版本将sources.list中的内容换成相应的内容
Ubuntu 22.04 LTS 阿里源
deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverseubuntu 22.04 清华源
# 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 multiversedeb 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 multiversedeb 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 multiversedeb 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# 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 multiverseubuntu 22.04 中科大源
deb https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-updates main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-backports main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-security main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ jammy-proposed main restricted universe multiverseubuntu 22.04 163源
deb http://mirrors.163.com/ubuntu/ jammy main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-security main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-updates main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-proposed main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ jammy-backports main restricted universe multiverse最后更新一下
sudo apt-get update来源地址：https://blog.csdn.net/bin_zhang1/article/details/128775950
