20240206 源来源（避免源失效，虽然概率很小）

以阿里云的源为例

https://developer.aliyun.com/mirror/

注意区分是普通源还是arm源，还有ubuntu版本别搞错。

比如我们服务器是arm，我们就去arm链接里去找源：

我是ubuntu20.04 arm64系统，就拷贝这个版本的源：

deb https://mirrors.aliyun.com/ubuntu-ports/ focal main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ focal main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ focal-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ focal-security main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ focal-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ focal-updates main restricted universe multiverse
# deb https://mirrors.aliyun.com/ubuntu-ports/ focal-proposed main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu-ports/ focal-proposed main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu-ports/ focal-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu-ports/ focal-backports main restricted universe multiverse

查看unbuntu版本名（lsb_release -c命令或者cat /etc/os-release命令）

用以下命令查看版本名：

lsb_release -c

或者：

cat /etc/os-release

在Linux系统中，lsb_release -c命令用于显示当前系统的发行版代号（Codename）。在这个命令中，lsb代表“Linux标准库（Linux Standard Base）”，它是一种为Linux操作系统定义标准化基础架构的规范。该规范旨在确保不同Linux发行版之间的二进制兼容性，并提供一组公共的API和工具集，以便开发人员可以编写与多个Linux发行版兼容的应用程序。因此，lsb_release -c命令是一个Linux系统命令，用于查询当前系统的发行版代号，以便在开发和管理应用程序时确保跨Linux发行版的兼容性。

我在ubuntu20.04上看：

我在ubuntu16.04上看：

各个版本源代号（仅供参考，具体代号用上面命令查）

ubuntu各个版本的源如下：
Ubuntu 12.04 (LTS)代号为precise。
Ubuntu 14.04 (LTS)代号为trusty。
Ubuntu 15.04 代号为vivid。
Ubuntu 15.10 代号为wily。
Ubuntu 16.04 (LTS)代号为xenial。
Ubuntu 18.04 (LTS)代号为bionic。
Ubuntu 20.04 (LTS)代号为focal。

各版本软件源（注意都是标准源，比如不会包含arm架构的，如果需要特定架构的，请参考上面“源来源”方法去源站获取）

Ubuntu20.10（groovy）

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ groovy main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ groovy-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ groovy-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ groovy-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ groovy-backports main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ groovy main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ groovy-security main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ groovy-updates main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ groovy-proposed main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ groovy-backports main restricted universe multiverse

清华源：

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ groovy main restricted universe multiverse

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ groovy-updates main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ groovy-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ groovy-backports main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ groovy-backports main restricted universe multiverse

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

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ groovy-proposed main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ groovy-proposed main restricted universe multiverse

Ubuntu20.04（focal）

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

清华源：

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 multiverse

deb 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 multiverse

deb 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 multiverse

deb 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

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

Ubuntu19.10（eoan）

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ eoan main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ eoan-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ eoan-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ eoan-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ eoan-backports main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ eoan main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ eoan-security main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ eoan-updates main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ eoan-proposed main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ eoan-backports main restricted universe multiverse

清华源：

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan main restricted universe multiverse

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-updates main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-backports main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-backports main restricted universe multiverse

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

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-proposed main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ eoan-proposed main restricted universe multiverse

Ubuntu19.04（disco）

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ disco main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ disco-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ disco-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ disco-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ disco-backports main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ disco main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ disco-security main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ disco-updates main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ disco-proposed main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ disco-backports main restricted universe multiverse

清华源：

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ disco main restricted universe multiverse

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ disco-updates main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ disco-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ disco-backports main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ disco-backports main restricted universe multiverse

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

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ disco-proposed main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ disco-proposed main restricted universe multiverse

Ubuntu18.04（bionic）

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

清华源：

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

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

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

Ubuntu16.04（xenial）

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse

清华源：

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse

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

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

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse

参考文章：Ubuntu各个版本换源阿里源、清华源

注意：只能在/etc/apt/sources.list中添加一种类型的源，比如只添加阿里源或者清华源，别把两种都搞进去，可能会出错的！同理，也别跟其他的源混在一起搞进去！

同时添加多个软件源，比如阿里云和清华大学镜像源。可以提供更多的备选项，特别是在一些源暂时不可用或速度较慢时。

然而，可能引发以下问题：

1. 更新冲突：如果多个源中包含相同的软件包，可能会出现更新冲突。APT会根据版本号选择更新，但这可能导致依赖问题。

2. 维护成本：维护多个源可能会增加配置和管理的复杂性。

3. 更新速度：从多个源更新可能会稍微减慢更新速度，因为APT需要检查每个源的更新。

通常来说，推荐选择一个稳定且更新速度快的源作为主要源。当然有时，可能需要添加额外的源，例如为了获取某些特定软件包。如果确实需要添加多个主要源（如阿里云和清华），确保它们的软件包更新不会互相冲突，以保持系统的稳定性和一致性。