CentOS 7 DHCP+PXE+Apache+Kickstart 自动安装
#挂载光盘，备份文件，创建repo文件，清除和重建缓存mkdir /mnt/cdrom
mount /dev/cdrom /mnt/cdrom
mkdir /etc/yum.repos.d/backup/
mv /etc/yum.repos.d/*.* /etc/yum.repos.d/backup/
vi /etc/yum.repos.d/cdrom.repo
name=cdrom
baseurl=file:///mnt/cdrom
enable=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
yum clean all
yum update 安装GNOME桌面
yum groupinstall 'GNOME Desktop' #启动桌面,刚装完需要exit再登录
startx #安装httpd，新建http安装源目录，复制光盘上的文件
yum install httpd
mkdir /var/www/html/cdrom
cp -rf /mnt/cdrom/* /var/www/html/cdrom
systemctl enable httpd
systemctl restart httpd #安装dhcp，编辑dhcpd.conf文件
yum install dhcp
vi /etc/dhcp/dhcpd.conf
ddns-update-style interim;
ignore client-updates;
filename "pxelinux.0";
next-server 192.168.1.100;
subnet 192.168.1.0 netmask 255.255.255.0 {
option routers 192.168.1.1;
option subnet-mask 255.255.255.0;
range dynamic-bootp 192.168.1.90 192.168.111.99;
default-lease-time 21600;
max-lease-time 43200;
}
systemctl enable dhcpd
systemctl restart dhcpd #安装tftp-server，将disable=yes改为no
yum install tftp-server
vi /etc/xinetd.d/tftp
systemctl enable xinetd
systemctl restart xinetd #查看服务和端口状态
netstat -ntulp #安装syslinux，复制pxelinux.0文件，复制isolinux.cfg文件改名为default,修改default，复制initrd.img，vmlinuz，boot.msg
yum install syslinux
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/
cp /var/www/html/cdrom/images/pxeboot/{initrd.img,vmlinuz} /var/lib/tftpboot/
cp /var/www/html/cdrom/isolinux/boot.msg /var/lib/tftpboot/
mkdir /var/lib/tftpboot/pxelinux.cfg/
cp /var/www/html/cdrom/isolinux/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default
vi /var/lib/tftpboot/pxelinux.cfg/default
default ks
prompt 1
timeout 60
display boot.msg
label ks
kernel vmlinuz
append ks=http://192.168.1.100/ks.cfg initrd=initrd.img
#安装kickstart，保存到/var/www/html/ks.cfg
yum install system-config-kickstart
system-config-kickstart #ks.cfg末尾添加
%packages
@core
%end 注意，用来测试自动安装的虚拟机CPU要至少4核，RAM要至少2G，否则会在starting package installation process步骤停止响应
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