Debian 11如何换源？_debian11换源

Debian 11如何换源？

一、备份原文件

mv /etc/apt/sources.list /etc/apt/sources.list.backup
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二、将默认源更换为THU的源

使用tee将输入重定向追加至/etc/apt/sources.list 文件

tee -a /etc/apt/sources.list <<  EOF
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-updates main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-backports main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-backports main contrib non-free
deb https://security.debian.org/debian-security bullseye-security main contrib non-free
deb-src https://security.debian.org/debian-security bullseye-security main contrib non-free
EOF
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三、验证源是否可用

apt update       
# -qq 静默输出   
apt update -qq  
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验证完成，效果图如下：