下载校验与命令行
MD5
b950a4d7cf3151e5f213843e2ad77fe3
curl -O https://old-releases.ubuntu.com/releases/edgy/ubuntu-6.10-server-i386.iso
# 校验文件完整性
md5sum ubuntu-6.10-server-i386.iso # 期望 b950a4d7cf3151e5f213843e2ad77fe3