Dnsmasq配備GPXEを使用してCentos 7をインストール

実験環境1台Centos 7.6の仮想マシンip:192.168.148.17/24 PXE環境を配置する;仮想マシンをテストマシンとして新規作成
今回の実験はdnsmasqをdhcp、tftpサーバとして採用した.vsftpdはインストールソースを提供します

#      
[root@localhost ~]# systemctl stop firewalld
[root@localhost ~]# systemctl disable firewalld
#syslinux   pxe       
[root@localhost ~]# yum -y install dnsmasq vsftpd syslinux
[root@localhost ~]# mkdir /var/ftp/pub/centos7
[root@localhost ~]# systemctl enable dnsmasq vsftpd 
[root@localhost ~]# systemctl start  vsftpd 
[root@localhost ~]# mkdir /var/ftp/pub/centos7
[root@localhost ~]# mount /dev/sr0 /var/ftp/pub/centos7/
#   tftp    
[root@localhost ~]# mkdir /var/lib/dnsmasq/tftpboot/
[root@localhost ~]# cd /var/lib/dnsmasq/tftpboot/
[root@localhost tftpboot]# cp /usr/share/syslinux/{menu.c32,gpxelinux.0} .
[root@localhost tftpboot]# mkdir pxelinux.cfg
[root@localhost tftpboot]# cp /var/ftp/pub/centos7/isolinux/isolinux.cfg pxelinux.cfg/default
#   default         Gpxe       tftp   ftp,http      
default menu.c32
timeout 600
menu title CentOS 7

label linux
  menu label ^Install CentOS 7
  kernel ftp://192.168.148.17/pub/centos7/isolinux/vmlinuz
  append initrd=ftp://192.168.148.17/pub/centos7/isolinux/initrd.img  inst.repo=ftp://192.168.148.17/pub/centos7/

label local
  menu label Boot from ^local drive
  menu default
  localboot 0xffff

#  /etc/dnsmasq.d/   pxe.conf  ;   dhcp      ，  tftp  ,  tftp          ；      :
[root@localhost ~]# cat /etc/dnsmasq.d/pxe.conf 
dhcp-range=192.168.148.50,192.168.148.100,255.255.255.0,12h
enable-tftp
dhcp-boot=/var/lib/dnsmasq/tftpboot/gpxelinux.0,192.168.148.17

[root@localhost ~]# systemctl start dnsmasq
#   ipv4    udp  
[root@localhost ~]# ss -4  -unl
State      Recv-Q Send-Q                      Local Address:Port                                     Peer Address:Port              
UNCONN     0      0                                       *:53                                                  *:*                  
UNCONN     0      0                                       *:67                                                  *:*                          
UNCONN     0      0                                       *:69                                                  *:* 

#          
#                    
[root@localhost ~]# systemctl enable firewalld
[root@localhost ~]# systemctl start firewalld
[root@localhost ~]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: eth0
  sources: 
  services: ssh dhcpv6-client
  ports: 
  protocols: 

[root@localhost ~]#  firewall-cmd  --permanent --add-service=ftp
[root@localhost ~]#  firewall-cmd  --permanent --add-service=tftp
[root@localhost ~]#  firewall-cmd  --permanent --add-service=dhcp
[root@localhost ~]# firewall-cmd --reload
[root@localhost ~]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: eth0 eth1
  sources: 
  services: ssh dhcpv6-client dhcp ftp tftp

別の新しい仮想デフォルトを起動してネットワークからシステムのインストールを行います
転載先:https://blog.51cto.com/1012682/2382324