[Debian] Linux ISO镜像文件下载ubuntu CentOS Gentoo Debian

1.Ubuntu
https://ubuntu.com/desktop#download 点击22.04LTS按钮即可下载

https://ubuntu.com/download/server 点击Option 2: Manual server installation 即可看到下载按钮

2.CentOS
https://www.centos.org/download/
选择相应的架构后，会跳转到镜像下载页面
https://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/
https://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso 4.4G
https://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.torrent

2.Gentoo
https://www.gentoo.org/downloads/ 直接可以看到架构及下载文件大小，可以直接点击下载

3.Debian
https://www.debian.org/distrib/ 可以直接点击下载，提供U盘安装镜像和完整安装镜像