1、准备一台虚拟机 建议为Debian

2、配置网络源：(哪里快配置哪里不需要照抄)

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vim /etc/apt/sources.list
deb https://mirror.lzu.edu.cn/debian/ bullseye main contrib non-free
deb-src https://mirror.lzu.edu.cn/debian/ bullseye main contrib non-free
deb https://mirror.lzu.edu.cn/debian/ bullseye-updates main contrib non-free
deb-src https://mirror.lzu.edu.cn/debian/ bullseye-updates main contrib non-free
deb https://mirror.lzu.edu.cn/debian/ bullseye-backports main contrib non-free
deb-src https://mirror.lzu.edu.cn/debian/ bullseye-backports main contrib non-free
deb https://mirror.lzu.edu.cn/debian-security bullseye-security main contrib non-free
deb-src https://mirror.lzu.edu.cn/debian-security bullseye-security main contrib non-free

3、安装jigdo-file

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apt install jigdo-file -y

4、打开该网页获取DLBD的下载链接。(国内)（每个镜像源应该都有DLBD的链接，还是哪里快配置哪里）

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http://mirror.lzu.edu.cn/debian-cd/11.7.0/amd64/jigdo-dlbd/
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http://mirror.lzu.edu.cn/debian-cd/11.7.0/amd64/jigdo-dlbd/debian-11.7.0-amd64-DLBD-1.jigdo
http://mirror.lzu.edu.cn/debian-cd/11.7.0/amd64/jigdo-dlbd/debian-11.7.0-amd64-DLBD-2.jigdo

5、在debian系统中，运行jigdo-file程序，进行下载。

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jigdo-lite

jigdo: http://mirror.lzu.edu.cn/debian-cd/11.7.0/amd64/jigdo-dlbd/debian-11.7.0-amd64-DLBD-{1,2}.jigdo

（程序进入自动下载，并整合，下载的文件大小在86G左右，中途不建议关闭机器或者挂起，并且请保持网络通畅。）下载成功后，jigdo会在当前的目录下，自动生成一个“debian-11.7.0-amd64-DLBD-1.iso”，“debian-11.7.0-amd64-DLBD-2.iso”。