Debian Buster 以上版本默认支持 HTTPS 源。如果遇到无法拉取 HTTPS 源的情况，请先使用 HTTP 源并安装：
apt install apt-transport-https ca-certificates
Debian11
vi /etc/apt/sources.list
- 启用源码源
- 使用非自由软件源
- 强制安全更新使用镜像
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ trixie main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ trixie main contrib non-free non-free-firmware
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ trixie-updates main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ trixie-updates main contrib non-free non-free-firmware
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ trixie-backports main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ trixie-backports main contrib non-free non-free-firmware
# 以下安全更新软件源包含了官方源与镜像站配置，如有需要可自行修改注释切换
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security trixie-security main contrib non-free non-free-firmware
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security trixie-security main contrib non-free non-free-firmware