修改 APT 源

手动修改 sources.list

  1. 备份原文件：

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

  2. 编辑源文件：

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    sudo nano /etc/apt/sources.list

  3. 替换为官方源（以 Ubuntu 22.04 为例）：

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    deb http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    deb http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    deb http://archive.ubuntu.com/ubuntu jammy-security main restricted universe multiverse
    deb http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse

    如需国内镜像，可替换为：

    • 清华源：
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      deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy main restricted universe multiverse
      deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-updates main restricted universe multiverse
      deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-security main restricted universe multiverse
      deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ jammy-backports main restricted universe multiverse
    • 阿里云源：
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      deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
      deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
      deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
      deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse

替换完成后可以将/etc/apt/sources.list.d内的文件注释，可能会有其他源

  1. 更新软件列表：
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    sudo apt clean
    sudo apt update