######pxe#########
1.install
yum install httpd tftp-server dhcp syslinux -y
httpd ##共享安装资源
dhcp ##分配ip以及让客户主机获取pexlinux.0文件
pxelinux.0 ##预安装环境头文件，用来指定读取后续文件的程序
tftp-server ##提供tftp协议，令客户主机可以读取到预安装环境
syslinux ##提供pxelinux.0文件
2.启用服务
1）关闭火墙
systemctl stop firewalld
systemctl disable firewalld
2）打开http服务
systemctl start httpd
systemctl enable httpd
3）开启tftp服务：
[root@localhost ~]# netstat -anutlpe | grep xinetd
[root@localhost ~]# vim /etc/xinetd.d/tftp
14 disable = no
[root@localhost ~]# systemctl restart xinetd.service
[root@localhost ~]# netstat -anutlpe | grep xinetd
udp 0 0 0.0.0.0:69 0.0.0.0:* 0 92471 5130/xinetd
[root@localhost ~]# chkconfig --list
xinetd based services:
chargen-dgram: off
chargen-stream:off
daytime-dgram: off
daytime-stream:off
discard-dgram: off
discard-stream:off
echo-dgram: off
echo-stream: off
tcpmux-server: off
tftp: on
time-dgram: off
time-stream: off
4)启用dhcp服务
[root@localhost ~]# cp /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf
cp: overwrite ‘/etc/dhcp/dhcpd.conf’? y
[root@localhost ~]# vim /etc/dhcp/dhcpd.conf
1 option domain-name "example.com"; ##客户主机域名
2 option domain-name-servers 172.25.254.254; ##客户主机获得到的dns
3 default-lease-time 600; ##默认租约期
4 max-lease-time 7200; ##最长租约期
5 log-facility local7; ##日志级别
6 subnet 172.25.254.0 netmask 255.255.255.0 { ##网段，子网掩码
7 range 172.25.254.77 172.25.254.88; ##ip地址池
8 option routers 172.25.254.250; ##客户主机获得到的网关
9 filename "pxelinux.0"; ##客户主机获得到的预安装环境头文件
10 next-server 172.25.254.139; ##指定头文件所在主机的ip
11 }
[root@localhost ~]# systemctl start dhcpd
[root@localhost ~]# systemctl enable dhcpd
3.设定共享文件
1）制作安装源
mkdir /var/www/html/rhel7.0
mkdir /iso
mv /root/rhel-server-7.0-x86_64-dvd.iso /iso/
mount /iso/rhel-server-7.0-x86_64-dvd.iso /var/www/html/rhel7.0/
vim /etc/rc.d/rc.local ##永久挂载
3 mount /iso/rhel-server-7.0-x86_64-dvd.iso /var/www/html/rhel7.0/
chmod +x /etc/rc.d/rc.local
2）制作预安装环境
cp /var/www/html/rhel7.0/isolinux/* /var/lib/tftpboot/ ##isolinux/目录下有目录有内核和初始化文件等，复制到/var/lib/tftpboot/，在pexlinux.0引导客户主机访问tftp时，访问这些文件
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/ ##复制pxelinux.0程序到此处
mkdir /var/lib/tftpboot/pxelinux.cfg
cp /var/lib/tftpboot/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default ##pexlinux.0的配置文件是/var/lib/tftpboot/pxelinux.cfg/default
3）设定自动化部署
yum install system-config-kickstart -y
system-config-kickstart -----> /var/www/html/ks.cfg
vim /var/lib/tftpboot/pxelinux.cfg/default
label autoinstall ##选项标签
menu label ^Autoinstall RHEL7.0 ##标题
kernel vmlinuz##启动的内核文件
append initrd=initrd.img repo=http://172.25.254.139/rhel7.0 ks=http://172.25.254.139/ks.cfg quiet ##初始化镜像 / ##安装资源 / ##自动安装脚本
本文转自 yab109 51CTO博客，原文链接：http://blog.51cto.com/12768057/1942049，如需转载请自行联系原作者
