本文最后更新于 2024-11-06，文章内容可能已经过时。

在Ubuntu 22.04中更换镜像源可以通过编辑 /etc/apt/sources.list文件来实现。以下是更换为阿里云镜像源的步骤：

  1. 备份当前的 sources.list文件：

    sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup

  2. 编辑 sources.list文件：

    sudo nano /etc/apt/sources.list

  3. 将文件中的内容替换为阿里云的镜像源（以Ubuntu 22.04为例）：

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

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

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

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

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

  4. ctrl+x 保存并关闭文件

  5. 更新软件源：

    sudo apt update

  6. 升级已安装的包：

    sudo apt upgrade

    以上步骤将会将系统的软件源更换为阿里云的镜像源，提供更快的软件包下载速度。