无人值守PXE-E53：No boot filename received

无人值守安装系统时
出现

PXE-E53：No boot filename received
PXE-M0F: Exiting Intel PXE ROM.
Operating System not found

是因为DHCP没有指定tftp的ip地址和指定下载的文件

[root@haha ~]# vim /etc/dhcp/dhcpd.conf
subnet 192.168.13.0 netmask 255.255.255.0 {
    
    
	range 192.168.13.100 192.168.13.120;
	default-lease-time 600;
	max-lease-time 7200;
	next-server 192.168.13.14;  ##指定tftp服务IP
	filename "pxelinux.0";  ##指定从tftp上下载指定的启动文件
}
[root@haha ~]# systemctl start dhcpd