PXE+Kickstart

1.关闭firewall和selinux

firewall-cmd --set-default-zone=trusted
vi /etc/selinux/config 
reboot

getenforce 
firewall-cmd --list-all

2.配置vsftp服务

通过ftp来共享系统镜像文件

yum -y install vsftpd
rpm -qc vsftpd
vim /etc/vsftpd/vsftpd.conf
    配置anonymous_enable=YES
systemctl restart vsftpd

mkdir /var/ftp/iso
mount -t iso9660 /dev/sr0 /var/ftp/iso
    使用ftp://本机地址/iso来访问镜像

3.配置dhcp服务

通过dhcp服务来下发网络配置、引导文件名字、存放内核文件的tftp服务器地址

yum -y install dhcp-server
rpm -qc dhcp-server
vim /etc/dhcp/dhcpd.conf
rpm -ql dhcp-server | grep example
cat /usr/share/doc/dhcp-server/dhcpd.conf.example > /etc/dhcp/dhcpd.conf
vim /etc/dhcp/dhcpd.conf
   subnet 192.168.10.0 netmask 255.255.255.0 {
      range 192.168.10.26 192.168.10.30;
      option domain-name-servers 192.168.10.254;
      option domain-name "huawei.com";
      option routers 192.168.10.254;
      option broadcast-address 192.168.10.255;
      next-server 192.168.10.130;
      filename "/pxelinux.0";
      default-lease-time 600;
      max-lease-time 7200;
      }
systemctl restart dhcpd

4.配置tftp服务

yum -y install tftp-server
systemctl enable tftp --now
systemctl list-unit-files | grep tftp
    tftp.socket                                enabled

cd /var/lib/tftpboot/
ls 
yum -y install syslinux
yum -y install syslinux-tftpboot
rpm -ql syslinux-tftpboot
cp -a /tftpboot/* /var/lib/tftpboot/
ls
mkdir pxelinux.cfg
    cd /var/ftp/iso/images/pxeboot/
    cp  initrd.img vmlinuz /var/lib/tftpboot/

    cd /var/ftp/iso/isolinux/
    cp isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default
    chmod u+x /var/lib/tftpboot/pxelinux.cfg/default
cd /var/lib/tftpboot/pxelinux.cfg/
vim default
      1 default rhel8
      3 timeout 0
      62 label rhel8
      63   menu label ^Install CentOS Linux 8
      64   kernel vmlinuz
      65   append initrd=initrd.img inst.repo=ftp://192.168.10.130/iso/ quiet

5.简单配置KickStart应答文件

cd /var/lib/tftpboot/pxelinux.cfg/
vim default
     65   #append initrd=initrd.img inst.repo=ftp://192.168.10.130/iso/ quiet
     66   append initrd=initrd.img inst.ks=ftp://192.168.10.130/ks.cfg quiet
systemctl restart tftp

cp /root/anaconda-ks.cfg /var/ftp/ks.cfg
cd /var/ftp/
chmod 644 ks.cfg
vim ks.cfg
     2 reboot
     11 #cdrom
     21 #repo --name="AppStream" --baseurl=file:///run/install/repo/AppStream
     12 url --url="ftp://192.168.10.130/iso/"

 对于应答文件进行语法正误检测

yum whatprovides ksvalidator
yum -y install pykickstart
ksvalidator ks.cfg | echo $?