CentOS 7.4无人值守安装环境搭建（PXE + DHCP+TFTP+ Kickstart+ FTP）

一，搭建无人值守服务器安装软件（PXE + DHCP+TFTP+ Kickstart+ FTP）IP:192.168.2.10

系统版本：CentOS Linux release 7.4.1708 (Core) 

二，配置本地yum源，安装所需软件：

[root@linuxidc-server yum.repos.d]# mount /dev/cdrom /mnt/ mount: /dev/sr0 写保护，将以只读方式挂载 [root@linuxidc-server yum.repos.d]# vim server.repo

[rhel-source]name=Red Hat Enterprise Linux releasever - basearch - Sourcebaseurl=file:///mnt/enabled=1gpgcheck=0gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-RedHat-release

[root@linuxidc-server yum.repos.d]# yum clean all

[root@linuxidc-server yum.repos.d]# yum makecache

[root@linuxidc-server yum.repos.d]# yum -y install vsftpd

[root@linuxidc-server yum.repos.d]# systemctl start vsftpd [root@linuxidc-server yum.repos.d]# systemctl enable vsftpd Created symlink from /etc/systemd/system/multi-user.target.wants/vsftpd.service to /usr/lib/systemd/system/vsftpd.service.

 [root@linuxidc-server yum.repos.d]# yum -y install tftp tftp-server xinetd

三，修改配置文件

[root@linuxidc-server yum.repos.d]# vim /etc/xinetd.d/tftp

# default: off # description: The tftp server serves files using the trivial file transfer \ # protocol. The tftp protocol is often used to boot diskless \ # workstations, download configuration files to network-aware printers, \ # and to start the installation process for some operating systems. service tftp { socket_type = dgram protocol = udp wait = yes user = root server = /usr/sbin/in.tftpd server_args = -s /tftpboot 　　　　#修改 disable = no　　　　　　　　　　　#修改 per_source = 11 cps = 100 2 flags = IPv4 }

[root@linuxidc-server yum.repos.d]# systemctl start xinetd.service [root@linuxidc-server yum.repos.d]# lsof -i :69 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME xinetd 47262 root 5u IPv4 94469 0t0 UDP *:tftp

安装dhcp，修改配置文件并开启服务

[root@linuxidc-server yum.repos.d]# yum -y install dhcp

[root@linuxidc-server yum.repos.d]# cp /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf

[root@linuxidc-server yum.repos.d]# > /etc/dhcp/dhcpd.conf　　#清空配置文件 [root@linuxidc-server yum.repos.d]# vi /etc/dhcp/dhcpd.conf　　#添加以下内容

subnet 192.168.2.0 netmask 255.255.255.0 { range 192.168.2.100 192.168.2.200; option domain-name-servers 192.168.2.1; option domain-name "internal.example.org"; option routers 192.168.2.1; option broadcast-address 192.168.2.255; default-lease-time 600; max-lease-time 7200; next-server 192.168.2.10;　　　　 filename "pxelinux.0";

}

 四、配置使用PXE启动所需的相关文件

[root@linuxidc-server yum.repos.d]# Packages]# yum -y install system-config-kickstart  syslinux

五，准备tftp需要共享出去的文件

[root@linuxidc-server yum.repos.d]# mkdir /tftpboot [root@linuxidc-server yum.repos.d]# mkdir /tftpboot/pxelinux.cfg [root@linuxidc-server yum.repos.d]# cp /usr/share/syslinux/pxelinux.0 /tftpboot/ [root@linuxidc-server yum.repos.d]# cp /media/images/pxeboot/initrd.img /tftpboot/ [root@linuxidc-server yum.repos.d]# cp /media/images/pxeboot/vmlinuz /tftpboot/ [root@linuxidc-server yum.repos.d]# cp /media/isolinux/isolinux.cfg /tftpboot/pxelinux.cfg/default [root@linuxidc-server yum.repos.d]# chmod 644 /tftpboot/pxelinux.cfg/default

六，修改default，指定安装操作系统的方式和ks.cfg文件路径（修改第一行和64行其他不改）

1 default linux　　　　#第一行改成这样

64   append initrd=initrd.img inst.repo=ftp://192.168.2.10/pub inst.ks=ftp://192.168.2.10/ks.cfg　　　　#64行修改成这样

七，配置无人值守软件包

[root@linuxidc-server yum.repos.d]# pwd /etc/yum.repos.d [root@linuxidc-server yum.repos.d]# vim server.repo

[development]       

name=my-centos7-dvd

baseurl=file:///var/ftp/pub

enabled=1

gpgcheck=0

 [root@linuxidc-server yum.repos.d]# yum makecache 　　#生成本地yum缓存

八，通过xstart启动system-config-kickstart弹出来界面，设置自己后期无人执守安装需要配置的参数

#####################最后两个选项不做配置，############################

九，启动服务，

[root@linuxidc-server ~]# cd [root@linuxidc-server ~]# pwd /root [root@linuxidc-server ~]# cp ks.cfg /var/ftp/ [root@linuxidc-server ~]# systemctl restart vsftpd