Debian & Ubuntu硬盘安装,网络安装
---引导文件
中国科技大学开源镜像站:http://mirrors.ustc.edu.cn/---引导文件
preseed参考文档：
Debian以7(wheezy)为例
http://www.debian.org/distrib/netinst#netboot
http://ftp.nl.debian.org/debian/dists/
http://ftp.nl.debian.org/debian/dists/wheezy/main/installer-amd64/current/images/
http://ftp.nl.debian.org/debian/dists/wheezy/main/installer-amd64/current/images/netboot/netboot.tar.gz
http://ftp.nl.debian.org/debian/dists/wheezy/main/installer-amd64/current/images/netboot/debian-installer/amd64/
补充:
Ddebian最新测试版下载地址http://cdimage.debian.org/cdimage/
Ubuntu以14.04(trusty)为例
http://archive.ubuntu.com/ubuntu/dists
http://archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/current/images/
http://archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/current/images/netboot/netboot.tar.gz
http://archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/
提示: 14.04,16.04的安装光盘中己经包含了netboot引导文件，本人实测14.04,16.04均可用
install/netboot/ubuntu-installer/amd64/linux
install/netboot/ubuntu-installer/amd64/initrd.gz
注意:从上述连接下载的netboot文件截止到20171122可以成功引导16.04但无法引导16.04.3，在引导过程中会报kernel
modules找不到，实际上就是netboot引导文件和16.04.3本身的kernel不一致引起的，可能没及时更新上来，故请直接使用光盘自带的netboot文件，大小版本更新都能成功引导
Kali linux以1.0.9a为例
http://repo.kali.org/kali/dists/
http://repo.kali.org/kali/dists/kali/main/installer-amd64/current/images/
http://repo.kali.org/kali/dists/kali/main/installer-amd64/current/images/netboot/netboot.tar.gz
http://repo.kali.org/kali/dists/kali/main/installer-amd64/current/images/netboot/debian-installer/amd64/
说明:可以直接下载netboot.tar.gz后解压得到linux,initrd.gz，也可以到对应目录下载相应的linux,initrd.gz