Ubuntu 更换 apt 源为阿里云

本文详细介绍了如何在Ubuntu系统中更换apt源至阿里云等国内镜像,包括备份list文件、修改list文件以及更新软件列表的步骤。同时提供了阿里云、中科大、网易和清华的源地址。

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Ubuntu 更换 apt 源为阿里云

Ubuntu 默认的 apt 源下载速度不稳定,可以考虑切换到国内的 apt 镜像源。


Step1. 备份 list 文件

进入对应文件夹,用管理员权限,执行复制操作:

cd /etc/apt/
sudo cp sources.list sources.list.bak

Step2. 修改 list 文件

通过管理员权限,使用 vim 进行修改:

sudo vim sources.list

将文件中所有 url 地址,修改为 http://mirrors.aliyun.com/ubuntu/ 即可。

Step3. 更新软件列表

使用管理员权限,执行命令:

sudo apt-get update
sudo apt-get upgrade

P.S.
命令 apt-get update 是更新软件列表
命令 apt-get upgrade 是更新软件


附:国内常见源

阿里云:

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

中科大:

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
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
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
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
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

网易:

deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse

清华:

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

参考链接

Ubuntu18.04下更改apt源为阿里云源
Ubuntu 18.04换国内源 中科大源 阿里源 163源 清华源
ubuntu sudo update与upgrade的作用及区别

### 如何在Ubuntu更换APT #### 备份现有的镜像列表 为了防止意外情况发生,在修改前应当先备份当前的`/etc/apt/sources.list`文件。这可以通过命令行完成: ```bash sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup ``` 这条指令会创建一个名为`sources.list.backup`的副本,位于相同目录下[^1]。 #### 编辑APT文件 接下来需要编辑`/etc/apt/sources.list`文件来更改默认使用的仓库地址。可以使用任何文本编辑器打开它;这里以nano为例说明操作方法: ```bash sudo nano /etc/apt/sources.list ``` 进入编辑模式之后,清空原有内容并粘贴新的国内镜像链接。对于阿里云提供的Ubuntu 18.04 LTS版本而言,应该输入如下所示的内容[^2]: ``` deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse ``` 请注意,上述URL中的`bionic`代表的是Ubuntu 18.04代号,如果是其他版本则需相应调整为对应的代号(如focal对应于20.04, jammy对应于22.04等)。保存更改后退出编辑器[^3]。 #### 更新软件包索引 最后一步是要让系统重新加载最新的配置信息,并同步可用的应用程序列表。执行以下两条命令依次刷新缓存以及升级已安装的软件至最新版本: ```bash sudo apt update && sudo apt upgrade -y ``` 这样就完成了整个过程,现在用户的Ubuntu机器将会从指定的新镜像站点下载所需的资了[^4]。
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