cat /etc/sysconfig/network-scripts/ifcfg-eth0 
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.0.0.4
NETMASK=255.255.255.0
GATEWAY=10.0.0.2

/etc/init.d/network restart
ifconfig eth0

yum -y install dhcp
vim /etc/dhcp/dhcpd.conf
default-lease-time 600;
max-lease-time 7200;
ddns-update-style none;
option domain-name-servers 202.106.0.20;   #DNS地址可配置2个用逗号分隔
ignore client-updates;

subnet 10.0.0.0 netmask 255.255.255.0 {
  range 10.0.0.100 10.0.0.150;              #宣告获取地址段
  option subnet-mask 255.255.255.0;         #子网
  option routers 10.0.0.2;                  #获取网关地址
  next-server 10.0.0.4;                     #重点配置PEX地址
  filename "pxelinux.0";                    #内核文件名

vim /etc/xinetd.d/tftp
#配置TFTP配置文件：
service tftp
{
        socket_type             = dgram
        protocol                = udp
        wait                    = yes
        user                    = root
        server                  = /usr/sbin/in.tftpd
        server_args             = -s /tftpboot          #修改TFTP服务目录
        disable                 = no                    #修改为no，启动TFTP
        per_source              = 11
        cps                     = 100 2
        flags                   = IPv4
}

cat default 

default auto   #指定默认启动项
prompt 0       #为0时不选择自动按默认安装，为1时可选择选项安装

label auto     #配置选项auto
  kernel vmlinuz   #指定内核
  append initrd=initrd.img ks=http://10.0.0.4/ks.cfg devfs=nomount ramdisk_size=8192   #指定自动安装文件ks.cfg
label linux text
  kernel vmlinuz
  append initrd=initrd.img devfs=nomount ramdisk_size=8192
label rescue
  kernel vmlinuz
  append initrd=initrd.img rescue
#重启动TFTP服务加载配置
/etc/init.d/xinetd restart

cat ks.cfg
#platform=x86, AMD64, or Intel EM64T
#version=DEVEL
# Firewall configuration关闭防火墙
firewall --disabled
# Install OS instead of upgrade 安装系统
install
# Use network installation  使用网络安装，这里配置http获取安装包
url --url="http://192.168.146.128/"
key --skip
# Root password  配置ROOT密码
rootpw --iscrypted $1$jIsDXG2F$EGT.VAhEBlZ/ww9GNOTo7.
# System authorization information 系统授权信息
auth  --useshadow  --passalgo=md5
# Use graphical install 图形安装
graphical
# System keyboard 配置键盘
keyboard us
# System language 配置系统语言
lang en_US
# SELinux configuration 关闭selinux
selinux --disabled
# Do not configure the X Window System 不安装图形界面
skipx
# Installation logging level 安装系统日志记录级别
logging --level=info
# Reboot after installation 安装完重新引导
reboot
# System timezone  #配置时区
timezone  Asia/Shanghai
# Network information 配置网络为自动获取
network  --bootproto=dhcp --device=eth0 --onboot=on
# System bootloader configuration 系统引导程序配置
bootloader --location=mbr
# Clear the Master Boot Record 清除主引导记录
zerombr
# Partition clearing information 分区信息
clearpart --all  
# Disk partitioning information  指定分区大小
part swap --fstype="swap" --size=2048
part /boot --fstype="ext4" --size=200
part / --fstype="ext4" --grow --size=1

%packages
@base
@compat-libraries
@debugging
@development

%end