1 #!/bin/bash
 2 #检查环境
 3 se_state=`getenforce`
 4 if [ $se_state != "Disabled" ];then
 5 setenforce 0
 6 sed -i's/=enforcing/=disabled/g' /etc/selinux/config
 7 fi
 8 systemctl start firewalld
 9 systemctl enable firewalld
10 #检查yum源
11 mo_point=`ls / |grep local_dvd`
12 if [ -z $mo_point ];then
13 mkdir /local_dvd
14 mount /dev/cdrom /local_dvd
15 echo "/dev/sr0 /local_dvd iso9660 defaults 0 0 " >> /etc/fstab
16 rm -rf /etc/yum.repos.d/*.repo
17 echo "[local]
18 name=local
19 baseurl=file:///local_dvd
20 enabled=1
21 gpgcheck=0" >> /etc/yum.repos.d/local.repo
22 yum clean all
23 yum repolist
24 fi
25 #安装服务
26 yum -y install dhcp tftp-server xinetd httpd syslinux
27 #配置DHCP
28 IP=`ifconfig |grep -w inet |grep broad |awk '{print $2}'`
29 NETM=`ifconfig |grep -w netmask |grep broad |awk '{print $4}'`
30 NETW=`echo $IP |awk -F. '{print $1"."$2"."$3}'`
31 echo "option domain-name \"example.org\";
32 option domain-name-servers ns1.example.org, ns2.example.org;
33 default-lease-time 600;
34 max-lease-time 7200;
35 log-facility local7;
36 subnet $NETW.0 netmask $NETM {
37   range $NETW.10 $NETW.200;
38   option routers $IP;
39   filename \"pxelinux.0\";
40   next-server $IP;
41 }" > /etc/dhcp/dhcpd.conf
42 #配置tftp
43 mkdir /tftpboot
44 sed -i '13s/\/var\/lib//g' /etc/xinetd.d/tftp
45 sed -i '14s/yes/no/g' /etc/xinetd.d/tftp
46 #配置httpd,挂载系统光盘
47 mkdir /var/www/html/http_iso
48 mount /dev/cdrom /var/www/html/http_iso
49 echo "/dev/cdrom /var/www/html/http_iso iso9660 defaults 0 0 " >> /etc/fstab
50 #拷贝引导程序到tftp目录下
51 cp /var/www/html/http_iso/isolinux/vmlinuz /tftpboot
52 cp /var/www/html/http_iso/isolinux/initrd.img /tftpboot
53 mkdir /tftpboot/pxelinux.cfg
54 cp /var/www/html/http_iso/isolinux/isolinux.cfg /tftpboot/pxelinux.cfg/default
55 cp /usr/share/syslinux/pxelinux.0 /tftpboot
56 #修改默认启动程序
57 sed -i '1s/vesamenu.c32/ks/g' /tftpboot/pxelinux.cfg/default
58 sed -i 120d /tftpboot/pxelinux.cfg/default
59 echo "label ks
60   menu label ^Install CentOS 7
61   kernel vmlinuz
62   append initrd=initrd.img method=http://$IP/http_iso ks=http://$IP/ks.cfg devfs=nomount
63 menu end " >> /tftpboot/pxelinux.cfg/default
64 #拷贝ks文件到httpd工作目录下
65 cp ~/anaconda-ks.cfg /var/www/html/ks.cfg
66 #给ks文件增加可读权限
67 chmod a+r /var/www/html/ks.cfg
68 #修改ks文件的系统安装方式
69 sed -i '1,10s/cdrom/install/g' /var/www/html/ks.cfg
70 sed -i 5a"url --url=\"http://$IP/http_iso\"" /var/www/html/ks.cfg
71 #启动服务
72 systemctl restart dhcpd httpd xinetd
73 systemctl enable dhcpd httpd xinetd
74 #添加防火墙
75 firewall-cmd --add-port=67/udp --permanent
76 firewall-cmd --add-port=69/udp --permanent
77 firewall-cmd --add-port=80/tcp --permanent
78 firewall-cmd --reload