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Ubuntu 10.04下PXE跨局域网自动安装的方法

更新时间:2026-08-21 22:38:04 | 编辑:旧模样 | 信息来源:互联网

  之前我们学习到可以在局域网内让Ubuntu 10.04系统自动安装之PXE,今天我们就来学习下如何在不同局域网的客户机(client)也能实现系统的自动安装。

  一、原理篇

  1.先实现全网的互通即能ping通,这样是实现跨局域网实现自动安装系统的基础。

  2.在192.168.2.0/24这个局域网中搭建一个dhcp server,之所以在客户端所在的局域网中搭建dhcp server,是因为通过dhcp server可以自动获取ip地址而且还可以指定路由以及指定tftp server。指定路由相当于默认网关这样client就可以和PXE server通信,指定tftp server客户端可以通过tftp协议下载pxelinux.0文件以及内核启动文件等。通过text.cfg文件知道ks.cfg文件的位置,下载并按照ks.cfg文件的步骤安装系统。由ks.cfg文件就知道系统安装文件在192.168.0.105的/var/www/ubuntu目录中,请求安装文件安装之。

  二、实战篇

  1.实现全网互通

  把PXE Server的网关指向192.168.0.111,dhcp server 的网关指向192.168.2.1

  在192.168.0.111主机上做路由:#route add default gw 192.168.1.1

  在192.168.2.1主机上做路由: #route add default gw 192.168.1.2

  在客户端dhcp server 上测一下联通性:(当然ping最简单)

  这样全网就互通了。

  2.客户端dhcp server的设置:

  #vim /etc/dhcp3/dhcpd.conf

  subnet 192.168.2.0 netmask 255.255.255.0 {

  range 192.168.2.100 192.168.2.200;

  option domain-name "192.168.2.2";

  option domain-name-servers 192.168.2.2;

  option routers 192.168.2.1; #这是指定客户端网关为:192.168.2.1

  default-lease-time 600;

  max-lease-time 7200;

  next-server 192.168.0.105; #这里指定tftp server 为192.168.0.105

  filename "pxelinux.0";

  }

  对于客户端来说dhcp server的设置是非常重要的,当然也可以用dhcp 中继、路由这里就不介绍了。

  三、测试安装

  client 分配的ip是:192.168.2.101 ,网关:192.168.2.1

  tftp server :192.168.0.105

  这样设置完之后跨局域网自动安装系统就已经完成了。虽说步骤不多,但还是需要用户们认真按步骤执行,才能牢记此方法哦。


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  6. 当前时间: 2026-08-21 22:38:01
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