关于我配置我家云然后安装debian时，经常安装报错，因此在这里简单介绍一下如何给debian换源，同时推荐使用阿里源，他会比清华源更加稳定好用。

  1. 备份配置文件
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    cp -a /etc/apt/sources.list /etc/apt/sources.list.bak
  2. 编辑配置文件
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    vim /etc/apt/sources.list
  3. 具体国内源
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    deb https://mirrors.aliyun.com/debian/ bullseye main non-free contrib
    deb-src https://mirrors.aliyun.com/debian/ bullseye main non-free contrib
    deb https://mirrors.aliyun.com/debian-security/ bullseye-security main
    deb-src https://mirrors.aliyun.com/debian-security/ bullseye-security main
    deb https://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
    deb-src https://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
    deb https://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib
    deb-src https://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib

引用自csdn