第 31 章 PXE 网​​​​​​​络​​​​​​​安​​​​​​​装​​​​​​​

Red Hat Enterprise Linux允​​​​​​​许​​​​​​​基​​​​​​​于​​​​​​​ NFS、​​​​​​​FTP 或​​​​​​​ HTTP 协​​​​​​​议​​​​​​​的​​​​​​​网​​​​​​​络​​​​​​​安​​​​​​​装​​​​​​​。​​​​​​​网​​​​​​​络​​​​​​​安​​​​​​​装​​​​​​​可​​​​​​​以​​​​​​​从​​​​​​​引​​​​​​​导​​​​​​​光​​​​​​​盘​​​​​​​、​​​​​​​可​​​​​​​引​​​​​​​导​​​​​​​闪​​​​​​​存​​​​​​​盘​​​​​​​或​​​​​​​用​​​​​​​Red Hat Enterprise Linux CD #1 并​​​​​​​使​​​​​​​用​​​​​​​ askmethod 引​​​​​​​导​​​​​​​选​​​​​​​项​​​​​​​来​​​​​​​启​​​​​​​动​​​​​​​。​​​​​​​或​​​​​​​者​​​​​​​,如​​​​​​​果​​​​​​​要​​​​​​​安​​​​​​​装​​​​​​​的​​​​​​​系​​​​​​​统​​​​​​​装​​​​​​​有​​​​​​​支​​​​​​​持​​​​​​​ Pre-Execution Environment(PXE)的​​​​​​​网​​​​​​​卡​​​​​​​(NIC),你​​​​​​​可​​​​​​​以​​​​​​​配​​​​​​​置​​​​​​​它​​​​​​​从​​​​​​​其​​​​​​​他​​​​​​​网​​​​​​​络​​​​​​​系​​​​​​​统​​​​​​​的​​​​​​​文​​​​​​​件​​​​​​​而​​​​​​​不​​​​​​​是​​​​​​​本​​​​​​​地​​​​​​​介​​​​​​​质​​​​​​​(如​​​​​​​光​​​​​​​盘​​​​​​​)来​​​​​​​进​​​​​​​行​​​​​​​引​​​​​​​导​​​​​​​。​​​​​​​
For a PXE network installation, the client's NIC with PXE support sends out a broadcast request for DHCP information. The DHCP server provides the client with an IP address, other network information such as name server, the IP address or hostname of the tftp server (which provides the files necessary to start the installation program), and the location of the files on the tftp server. This is possible because of PXELINUX, which is part of the syslinux package.
要​​​​​​​筹​​​​​​​备​​​​​​​ PXE 安​​​​​​​装​​​​​​​,以​​​​​​​下​​​​​​​步​​​​​​​骤​​​​​​​必​​​​​​​须​​​​​​​被​​​​​​​执​​​​​​​行​​​​​​​:
  1. 配​​​​​​​置​​​​​​​网​​​​​​​络​​​​​​​(NFS、​​​​​​​FTP、​​​​​​​HTTP)服​​​​​​​务​​​​​​​器​​​​​​​来​​​​​​​导​​​​​​​出​​​​​​​安​​​​​​​装​​​​​​​树​​​​​​​。​​​​​​​
  2. 配​​​​​​​置​​​​​​​ tftp 服​​​​​​​务​​​​​​​器​​​​​​​上​​​​​​​用​​​​​​​于​​​​​​​ PXE 引​​​​​​​导​​​​​​​所​​​​​​​必​​​​​​​需​​​​​​​的​​​​​​​文​​​​​​​件​​​​​​​。​​​​​​​
  3. 配​​​​​​​置​​​​​​​被​​​​​​​允​​​​​​​许​​​​​​​从​​​​​​​ PXE 配​​​​​​​置​​​​​​​中​​​​​​​引​​​​​​​导​​​​​​​的​​​​​​​主​​​​​​​机​​​​​​​。​​​​​​​
  4. 启​​​​​​​动​​​​​​​ tftp 服​​​​​​​务​​​​​​​。​​​​​​​
  5. 配​​​​​​​置​​​​​​​ DHCP。​​​​​​​
  6. 引​​​​​​​导​​​​​​​客​​​​​​​户​​​​​​​,并​​​​​​​启​​​​​​​动​​​​​​​安​​​​​​​装​​​​​​​。​​​​​​​

31.1. 设​​​​​​​置​​​​​​​网​​​​​​​络​​​​​​​服​​​​​​​务​​​​​​​器​​​​​​​

首​​​​​​​先​​​​​​​,配​​​​​​​置​​​​​​​ NFS、​​​​​​​FTP 或​​​​​​​ HTTP 服​​​​​​​务​​​​​​​器​​​​​​​来​​​​​​​输​​​​​​​出​​​​​​​要​​​​​​​安​​​​​​​装​​​​​​​的​​​​​​​Red Hat Enterprise Linux版​​​​​​​本​​​​​​​的​​​​​​​整​​​​​​​个​​​​​​​安​​​​​​​装​​​​​​​树​​​​​​​。​​​​​​​详​​​​​​​细​​​​​​​说​​​​​​​明​​​​​​​请​​​​​​​参​​​​​​​考​​​​​​​《​​​​​​​Red Hat Enterprise Linux安​​​​​​​装​​​​​​​指​​​​​​​南​​​​​​​》​​​​​​​里​​​​​​​的​​​​​​​《​​​​​​​准​​​​​​​备​​​​​​​网​​​​​​​络​​​​​​​安​​​​​​​装​​​​​​​>部​​​​​​​分​​​​​​​。​​​​​​​

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