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#!/bin/bash#查看是否有本地yum源,没有则创建本地yum源cd /etc/yum.repos.dif [ ! -e local.repo ]thenmkdir repos.bakmv *.repo repos.bakecho '[local]name=localbaseurl=file:///mntgpgcheck=0enabled=1' > local.repofi#删除yum缓存并更新yum clean all && yum makecache#进行挂载并下载相关服务文件和程序mount /dev/sr0 /mntyum -y install tftp-server xinetd dhcp vsftpd syslinux#开启TFTP服务,并开启多台一起连接功能sed -i -e "10 s/yes/no/" -e "14 s/yes/no/" /etc/xinetd.d/tftp#开启tftp和xinetdsystemctl start tftpsystemctl start xinetd#拷贝一份模板文件至/etc/dhcp/目录下,并改名为dhcpd.confcp /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf#修改分配网段地址sed -i -e "32 s/10.254.239.0/192.168.184.0/" -e "32 s/224/0/" /etc/dhcp/dhcpd.conf#修改地址池sed -i -e "33 s/10.254.239.10/192.168.184.100/" -e "33 s/10.254.239.20/192.168.184.200/" /etc/dhcp/dhcpd.conf#默认网关指向本机TFTP服务器的IP地址sed -i "34c option routers 192.168.184.50;" /etc/dhcp/dhcpd.conf#禁用DNS动态更新,并指定服务器地址(本机IP),指定要下载的PXE引导程序文件sed -i "14 s/^#//" /etc/dhcp/dhcpd.confsed -i "14a next-server 192.168.184.50;" /etc/dhcp/dhcpd.confsed -i "15a filename \"pxelinux.0\";" /etc/dhcp/dhcpd.conf开启dhcp服务systemctl start dhcpd#复制内核文件即初始化镜像文件到TFTP根目录下cp /mnt/images/pxeboot/vmlinuz /var/lib/tftpboot/cp /mnt/images/pxeboot/initrd.img /var/lib/tftpboot/#复制PXE引导程序到TFTP根目录下cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot#创建新目录,并把光盘镜像文件及自动应答文件复制到新目录中mkdir /var/ftp/centos7cd /mntcp -rf * /var/ftp/centos7/ #复制整个镜像文件内容至新目录cp /root/kgc.cfg /var/ftp/kgc.cfg #复制应答文件#开启ftp服务systemctl start vsftpd#在tftp根目录下创建新目录,并配置启动菜单文件(默认文件名为default)mkdir /var/lib/tftpboot/pxelinux.cfgecho "default auto #指定默认入口名称prompt 0 #设置是否等待用户选择,0位不等待label auto #为图形化安装引导入口kernel vmlinuzappend initrd=initrd.img method=ftp://192.168.184.50/centos7 ks=ftp://192.168.184.50/kgc.cfglabel linux textkernel vmlinuzappend text initrd=initrd.img method=ftp://192.168.184.50/centos7label linux rescuekernel vmlinuzappend rescue initrd=initrd.img method=ftp://192.168.184.50/centos7" > /var/lib/tftpboot/pxelinux.cfg/default#关闭防火墙和增强型安全机制systemctl stop firewalld.servicesetenforce 0
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