PXE+DHCP+Apache+Kickstart自动安装CentOS

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(1)安装所需软件，搭建环境：
#yum -y install httpd tftp-server dhcp system-config-kickstart
挂载光盘文件，将其他机器装机所需软件的复制到/var/www/html：（一定要放在Apache的运行目录下）
#mkdir /media/cdrom
#mount -o -loop CentOS-6.3.iso /media/cdrom
#cp -fr /media/cdrom /var/www/html/
(2)相关配置：
TFTP配置——修改/etc/xinetd.d/tftp文件：
接着修改/etc/xinetd.d/tftp文件，将disable的值由yes变为no，内容如下所示：
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
}
.接着重启xinetd进程，命令如下所示：
service xinetd restart
DHCP配置——修改/etc/dhcp/dhcpd.conf:
cp -p /usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample /etc/dhcp/dhcpd.conf
vim /etc/dhcp/dhcpd.conf
# dhcpd.conf
#
# Sample configuration file for ISC dhcpd
#
subnet 192.168.1.0 netmask 255.255.255.0 {
default-lease-time 21600;
max-lease-time 43200;
range 192.168.1.210 192.168.1.230;
option subnet-mask 255.255.255.0;
next-server 192.168.1.228;
filename "/pxelinux.0";
}
(3)配置支持PXE的启动程序——
#cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot
#cp /var/www/html/images/pxeboot/initrd.img /var/lib/tftpboot
#cp /var/www/html/images/pxeboot/vmlinuz /var/lib/tftpboot
#cp /var/www/html/isolinux/*.msg /var/lib/tftpboot
#mkdir /var/lib/tftpboot/pxelinux.cfg
#cp /var/www/html/isolinux/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default
终端运行kickstart
#system-config-kickstart
ks.cfg:
#platform=x86, AMD64, or Intel EM64T
#version=DEVEL
# Firewall configuration
firewall --enabled --ssh
# Install OS instead of upgrade
install
# Use network installation
url --url="http://192.168.1.228/"
# Root password
rootpw --iscrypted $1$5RsAThGe$7Uo10EjVpxizCaiAB3knD1
# System authorization information
auth --useshadow --passalgo=md5
# Use text mode install
text
firstboot --disable
# System keyboard
keyboard us
# System language
lang en_US
# SELinux configuration
selinux --disabled
# Installation logging level
logging --level=info
# Reboot after installation
reboot
# System timezone
timezone --isUtc Asia/Shanghai
# Network information
network --bootproto=static --device=eth0 --gateway=192.168.1.1 --ip=192.168.1.6 --
nameserver=192.168.1.1 --netmask=255.255.255.0 --onboot=on
# System bootloader configuration
bootloader --location=mbr
# Clear the Master Boot Record
zerombr
# Partition clearing information
clearpart --all --initlabel
# Disk partitioning information
part /boot --fstype="ext4" --size=200
part swap --fstype="swap" --size=4096
part / --asprimary --fstype="ext4" --size=30000
%packages
@base
@basic-desktop
@chinese-support
@compat-libraries
@console-internet
@debugging
@desktop-debugging
@desktop-platform
@fonts
@general-desktop
@graphical-admin-tools
@input-methods
@internet-browser
@legacy-x
@remote-desktop-clients
@x11
-nspluginwrapper
-totem-mozplugin
%end
修改此default文件：
vim /var/lib/tftpboot/pxelinux.cfg/default
第1行改为：default linux（对应就是下面的label linux）
timeout 600改为timeout 1，这样可以立马进入装机，不用等待。
label linux
menu label ^Install or upgrade an existing system
menu default
kernel vmlinuz
append initrd=initrd.img 后添加一个:ks=http://192.168.x.x/ks.cfg
重启服务器 关闭防火墙
service httpd restart
service xinetd restart
service dhcpd restart
service iptables stop