?配置方法網上實在實在是很多，如果要更詳細的，大家可以直接到網上找，我不會在這里寫的非常詳細，不會step by step的講述，最重要的是要知道實現原理！相信看了我下面的原理講解，能對你們看相關文檔帶來更大的幫助，因為真的有很多人在對著文檔做的時候更本不知道自己在做什么！

流程化實現原理： 支持PXE的電腦開機（預先打開網卡PXE功能，網絡引導）---> DHCP給該電腦一個IP地址，并指明下一跳tftp文件服務器 ---> 電腦去tftp服務器上（/tftpboot 文件夾下面）下載到一個叫做 pxelinux.0的文件，并拿到pxelinux.cfg文件夾下的default配置文件 ---> 根據該配置文件加載內核等操作，同時該配置文件中可以指明ks.cfg文件的地址，這樣實現全程無人化安裝！ 基本實現步驟： 1.DHCP服務器配置 [root@localhost ~]# cat /etc/dhcpd.conf
ddns-update-style interim;
ignore client-updates;
allow booting;
allow bootp;
subnet 192.168.1.0 netmask 255.255.255.0 { # --- default gateway
??????? option routers????????????????? 192.168.1.1;
??????? option subnet-mask????????????? 255.255.255.0; #?????? option nis-domain?????????????? "domain.org";
#?????? option domain-name????????????? "domain.org";
??????? option domain-name-servers????? 192.168.1.1; option time-offset????????????? -18000; # Eastern Standard Time
#?????? option ntp-servers????????????? 192.168.1.1;
#?????? option netbios-name-servers???? 192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
#?????? option netbios-node-type 2; range dynamic-bootp 192.168.1.2 192.168.1.10;
??????? default-lease-time 21600;
??????? max-lease-time 43200;
??????? next-server 192.168.1.112;
??????? filename "pxelinux.0";
??????? # we want the nameserver to appear at a fixed address
#?????? host ns {
#?????????????? next-server marvin.redhat.com;
#?????????????? hardware ethernet 12:34:56:78:AB:CD;
#?????????????? fixed-address 207.175.42.254;
#?????? }
} 2.tftp服務器配置 [root@localhost ~]# cat /etc/xinetd.d/tftp
# default: off
# de.ion: The tftp server serves files using the trivial file transfer /
#?????? protocol.? The tftp protocol is often used to boot diskless /
#?????? workstations, download configuration files to network-aware printers, /
#?????? and to start the installation process for some operating systems.
service tftp
{
??????? socket_type???????????? = dgram
??????? protocol??????????????? = udp
??????? wait??????????????????? = yes
??????? user??????????????????? = root
??????? server????????????????? = /usr/sbin/in.tftpd
??????? server_args???????????? = -s /tftpboot
??????? disable???????????????? = no
??????? per_source????????????? = 11
??????? cps???????????????????? = 100 2
??????? flags?????????????????? = IPv4
} 3.準備相關文件 安裝目錄樹，ks.cfg，initrd.img，pxelinux.0，pxelinux.cfg，vmlinuz A--把安裝目錄樹拷貝到一個共享目錄中，例如，/var/ftp/pub下面，用ftp共享 B--ks.cfg也拷貝到 /var/ftp/pub下面 C-- cp /usr/lib/syslinux/pxelinux.0 /tftpboot cp /media/cdrom/images/pxeboot/{initrd.img,vmlinuz} /tftpboot mkdir /tftpboot/pxelinux.cfg touch /tftpboot/pxelinux.cfg/default default文件內容：（ftp地址自己改） [root@localhost ~]# cat /tftpboot/pxelinux.cfg/default
default linux
prompt 1
timeout 60
display boot.msg
label linux
? kernel vmlinuz
? append initrd=initrd.img text ks=ftp://192.168.1.112/pub/ks.cfg 有問題可以和我交流，共同進步！

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