yum install dnsmasq mv /etc/dnsmasq.conf /etc/dnsmasq.conf.backup # vim /etc/dnsmasq.conf interface=eth0,lo #bind-interfaces domain=centos7.lan # DHCP range-leases dhcp-range= eth0,10.10.0.20,10.10.0.30,255.255.255.0,1h # PXE dhcp-boot=pxelinux.0,pxeserver,192.168.1.20 # Gateway dhcp-option=3,10.10.0.240 # DNS dhcp-option=6,10.10.0.240,114.114.114.114 server=114.114.114.114 # Broadcast Address dhcp-option=28,10.0.0.255 # NTP Server dhcp-option=42,0.0.0.0 pxe-prompt="Press F8 for menu.",60 pxe-service=x86PC,"Install CentOS 7 from network server 10.10.0.240", pxelinux enable-tftp tftp-root=/var/lib/tftpboot interface – 服务器需要监听并提供服务的网络接口。 bind-interfaces – 取消注释来绑定到该网络接口 domain – 替换为你的域名。 dhcp-range – 替换为你的网络掩码定义的网段。 dhcp-boot – 替换该IP地址为你的网络接口IP地址。 dhcp-option=3,192.168.1.1 – 替换该IP地址为你的网段的网关。 dhcp-option=6,92.168.1.1 – 替换该IP地址为你的DNS服务器IP——可以定义多个IP地址。h server=8.8.4.4 – 这里放置DNS转发服务器IP地址。 dhcp-option=28,10.0.0.255 – 替换该IP地址为网络广播地址——可选项。 dhcp-option=42,0.0.0.0 – 这里放置网络时钟服务器——可选项（0.0.0.0地址表示参考自身）。 pxe-prompt – 保持默认——按F8进入菜单，60秒等待时间。 pxe=service – 使用x86PC作为32为/64位架构，并在字符串引述中输入菜单描述提示。其它类型值可以是：PC98,IAEFI,Alpha,Arcx86,IntelLeanClient,IA32EFI,BCEFI,XscaleEFI和X86-64EFI。 enable-tftp – 启用内建TFTP服务器。 tftp-root – 使用/var/lib/tftpboot——所有网络启动文件所在位置。 yum install syslinux yum install tftp-server cp -r /usr/share/syslinux/* /var/lib/tftpboot mkdir /var/lib/tftpboot/pxelinux.cfg touch /var/lib/tftpboot/pxelinux.cfg/default Vim /var/lib/tftpboot/pxelinux.cfg/default default menu.c32 prompt 0 timeout 300 ONTIMEOUT local menu title ########## PXE Boot Menu ########## label 1 menu label ^1)InstallCentOS7 x64 withLocalRepo kernel centos7/vmlinuz append initrd=centos7/initrd.img method=ftp://10.10.0.240/pub devfs=nomount label 2 menu label ^2)InstallCentOS7 x64 with http://mirror.centos.org Repo kernel centos7/vmlinuz append initrd=centos7/initrd.img method=http://mirror.centos.org/centos/7/os/x86_64/ devfs=nomount ip=dhcp label 3 menu label ^3)InstallCentOS7 x64 withLocalRepousing VNC kernel centos7/vmlinuz append initrd=centos7/initrd.img method=ftp://10.10.0.240/pub devfs=nomount inst.vnc inst.vncpassword=password label 4 menu label ^4)Bootfromlocal drive mount /dev/sr0 /mnt # ls /mnt/ mkdir /var/lib/tftpboot/centos7 cp /mnt/images/pxeboot/vmlinuz /var/lib/tftpboot/centos7 cp /mnt/images/pxeboot/initrd.img /var/lib/tftpboot/centos7 yum install vsftpd cp -r /mnt/* /var/ftp/pub/ chmod -R 755 /var/ftp/pub systemctl start dnsmasq systemctl status dnsmasq systemctl start vsftpd systemctl status vsftpd systemctl enable dnsmasq systemctl enable vsftpd # netstat -tulpn # firewall-cmd --add-service=ftp --permanent ## Port 21 # firewall-cmd --add-service=dns --permanent ## Port 53 # firewall-cmd --add-service=dhcp --permanent ## Port 67 # firewall-cmd --add-port=69/udp --permanent ## Port for TFTP # firewall-cmd --add-port=4011/udp --permanent ## Port for ProxyDHCP # firewall-cmd --reload ## Apply rules tailf /var/log/messages # umount /dev/sr0
# PXE安装脚本 # 安装前配置好centos和epel yum源 # 网卡ip和localip一致 localip="10.10.0.240" eth_name='eth0' dnsmasq_install() { yum -y install dnsmasq mv /etc/dnsmasq.conf /etc/dnsmasq.conf.backup dnsmasq_conf='interface='$eth_name' #bind-interfaces domain=centos7.lan # DHCP range-leases dhcp-range= '$eth_name',10.10.0.100,10.10.0.110,255.255.255.0,1h # PXE dhcp-boot=pxelinux.0,pxeserver,'$localip' # Gateway dhcp-option=3,'$localip' # DNS dhcp-option=6,'$localip',114.114.114.114 server=114.114.114.114 # Broadcast Address dhcp-option=28,10.10.0.255 # NTP Server dhcp-option=42,0.0.0.0 pxe-prompt="Press F8 for menu.",60 pxe-service=x86PC,"Install CentOS 7 from network server '$localip'", pxelinux enable-tftp tftp-root=/var/lib/tftpboot' echo "$dnsmasq_conf" > /etc/dnsmasq.conf } tftp_pxe_install() { yum -y install syslinux yum -y install tftp-server cp -r /usr/share/syslinux/* /var/lib/tftpboot/ if [[ ! -d /var/lib/tftpboot/pxelinux.cfg ]] then mkdir /var/lib/tftpboot/pxelinux.cfg touch /var/lib/tftpboot/pxelinux.cfg/default default_conf='default menu.c32 prompt 0 timeout 300 ONTIMEOUT local menu title ########## PXE Boot Menu ########## label 1 menu label ^1)InstallCentOS7 x64 withLocalRepo kernel centos7/vmlinuz append initrd=centos7/initrd.img method=ftp://'$localip'/pub devfs=nomount label 2 menu label ^2)InstallCentOS7 x64 with http://mirror.centos.org Repo kernel centos7/vmlinuz append initrd=centos7/initrd.img method=http://mirror.centos.org/centos/7/os/x86_64/ devfs=nomount ip=dhcp label 3 menu label ^3)InstallCentOS7 x64 withLocalRepousing VNC kernel centos7/vmlinuz append initrd=centos7/initrd.img method=ftp://'$localip'/pub devfs=nomount inst.vnc inst.vncpassword=password label 4 menu label ^4)Bootfromlocal drive' echo "$default_conf" > /var/lib/tftpboot/pxelinux.cfg/default fi } mount_cd() { mount|grep '^/dev/sr0' if [[ $? -eq 0 ]] then echo '光盘已挂载。' else mount /dev/sr0 /mnt/ &> /dev/null if [[ $? -ne 0 ]] then count=$(( $count + 1 )) if [[ $count -eq 20 ]];then echo '超时退出'; exit 8; fi echo "sr0没有光盘,挂载失败,将在5秒后重试" sleep 5 mount_cd else echo '光盘挂载成功。'; fi fi } confing_pxeserver() { if [[ ! -d /var/lib/tftpboot/centos7 ]];then mkdir /var/lib/tftpboot/centos7 cp /mnt/images/pxeboot/vmlinuz /var/lib/tftpboot/centos7/ cp /mnt/images/pxeboot/initrd.img /var/lib/tftpboot/centos7/ fi yum -y install vsftpd if [[ `ls -A /var/ftp/pub/` == "" ]];then echo 'copy光盘文件到/var/ftp/pub/ ...'; cp -r /mnt/* /var/ftp/pub/ chmod -R 755 /var/ftp/pub fi } start_service() { systemctl start dnsmasq systemctl status dnsmasq systemctl start vsftpd systemctl status vsftpd systemctl enable dnsmasq systemctl enable vsftpd } dnsmasq_install tftp_pxe_install mount_cd confing_pxeserver start_service