ubuntu用阿里源好还是清华源好,国产ubuntu镜像源

Ubuntu 20.04 是 Ubuntu 的第 8 个 LTS 版本，其重大更新和改进将在 2030 年前终止，计划于2020年 4 月 23 日发布。

国内有很多Ubuntu的镜像源，包括阿里的、网易的，还有很多教育网的源，比如：清华源、中科大源。
我们这里以清华源为例讲解如何修改Ubuntu 20.04里面默认的源。
编辑/etc/apt/sources.list文件, 在文件最前面添加以下条目(操作前请做好相应备份)：

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

然后执行命令：

sudo apt-get updatesudo apt-get upgrade

其他几份国内源如下：

阿里源 deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse 中科大源 deb https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiversedeb https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiversedeb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse 网易163源 deb http://mirrors.163.com/ubuntu/ focal main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ focal-proposed main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ focal main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ focal-proposed main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiverse