PXE安装linux操作系统

sed -i "s#=enforcing#=disabled#g" /etc/selinux/config #关闭selinux
setenforce 0 #禁止selinux
service iptables stop #禁止防火墙
yum install dhcp tftp-server syslinux httpd system-config-kickstart -y #安装软件包

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2.
编辑dhcp的配置文件：
yum -y install vim
vim /etc/dhcp/dhcpd.conf

ddns-update-style none;
default-lease-time 259200;
max-lease-time 518400;
option routers 172.16.0.1;
option domain-name-servers 172.16.0.1;
subnet 172.16.0.0 netmask 255.255.255.0 {
range 172.16.0.80 172.16.0.89;
option subnet-mask 255.255.255.0;
next-server 172.16.0.70; 获取这个pxelinux.0 文件的tftp服务器地址
filename "pxelinux.0";
}

service dhcpd restart
netstat -antup | grep dhcpd
chkconfig dhcpd on
service dhcpd start
lsof -i udp:67

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3.
编辑tftp的配置文件
vim /etc/xinetd.d/tftp
将配置文件中的
disable = no
service xinetd restart
cat /etc/services | grep tftp
netstat -anplut | grep :69
chkconfig xinetd on
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4.

rm -rf /var/lib/tftpboot/*
mkdir /var/lib/tftpboot/pxelinux.cfg
mount /dev/sr0 /mnt
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/
cp /mnt/isolinux/* /var/lib/tftpboot/
cp /mnt/isolinux/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default
chmod 644 /var/lib/tftpboot/pxelinux.cfg/default

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5.
vim /var/lib/tftpboot/pxelinux.cfg/default
将
timeout 600
改为
timeout 10
搜索：
label linux
将
append initrd=initrd.img
改为
append initrd=initrd.img ks=http://172.16.0.70/ks.cfg
6.
启动 httpd
/etc/init.d/httpd start
chkconfig --level 35 httpd on
mkdir /var/www/html/centos6
mount /dev/cdrom /var/www/html/centos6
service httpd start
lsof -i tcp:80;netstat -anplut| grep httpd
7.
yum groupinstall "X Window System"
yum groupinstall "GNOME Desktop Environment"
startX
system-config-kickstart
生成ks.cfg文件保存至/var/www/html 目录下
这里给出一个ks.cfg示例文件

centos7 PXE装机
1.
setenforce 0
systemctl stop firewalld
yum install -y dhcp tftp-server syslinux httpd system-config-kickstart
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2.编辑dhcp的配置文件：

vim /etc/dhcp/dhcpd.conf

subnet 172.16.0.0 netmask 255.255.255.0 {
range 172.16.0.140 172.16.0.150;
option domain-name-servers 172.16.0.1;
option routers 172.16.0.1;
option broadcast-address 172.16.0.255;
default-lease-time 3600;
max-lease-time 7200;
next-server 172.16.0.61; #寻找tftp服务器 /pxelinux.0
filename "/pxelinux.0";
}
systemctl restart dhcpd
netstat -antup | grep dhcpd
systemctl enable dhcpd
systemctl start dhcpd
lsof -i udp:67
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3.编辑tftp的配置文件

vim /etc/xinetd.d/tftp
将配置文件中的
disable = no
systemctl restart xinetd
cat /etc/services | grep tftp
netstat -anplut | grep :69
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4.
rm -rf /var/lib/tftpboot/*
mkdir /var/lib/tftpboot/pxelinux.cfg/
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/
mount /dev/sr0 /mnt
cp -a /mnt/isolinux/* /var/lib/tftpboot/
cp /mnt/isolinux/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default
chmod 644 /var/lib/tftpboot/pxelinux.cfg/default
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5.
vim /var/lib/tftpboot/pxelinux.cfg/default
将
default vesamenu.c32
timeout 600
改为
default linux
timeout 60
搜索：
label linux
将
append initrd=initrd.img inst.stage2=hd:LABEL=RHEL-7.0\x20Server.x86_64 rd.live.check quiet
改为
append initrd=initrd.img ks=http://192.168.20.61/ks.cfg inst.repo=http://192.168.20.61/rhel7 quiet

6.启动 httpd
mkdir -v /var/www/html/rhel7
mount /dev/cdrom /var/www/html/rhel7
systemctl enable httpd
systemctl start httpd
lsof -i tcp:80
systemctl umask httpd;systemctl restart httpd;systemctl enable httpd;netstat -anplut| grep httpd

7.用system-config-kickstart生成ks.cfg文件放到/var/www/html下
本文提供一个ks.cfg文件供测试使用