Debian 系統鏡像下載地址：
http://mirrors.163.com/debian-cd/
備份
cp /etc/apt/sources.list /etc/apt/sources.list.bak
更換
vim /etc/apt/sources.list
輸入以下內容：
注意權限問題，否則可能編輯不了此檔案，
deb http://mirrors.aliyun.com/debian/ buster main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster main non-free contrib
deb http://mirrors.aliyun.com/debian-security buster/updates main
deb-src http://mirrors.aliyun.com/debian-security buster/updates main
deb http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
deb http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib
更新
apt-get update
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標籤：Linux