RHEL5下网络引导

1．将光盘挂载到文件件/mnt下

[root@oracle isolinux]# mount /dev/cdrom -o loop /mnt/

2．在已经安装好的RHEL5的系统下安装dhcp-server，tftp-service，syslinux。

[root@oracle ~]# rpm -qa dhcp*

dhcpv6-client-1.0.10-17.el5

dhcp-3.0.5-21.el5

[root@oracle ~]# rpm -qa tftp*

tftp-server-0.49-2

[root@oracle ~]# rpm -qa syslinux*

syslinux-3.11-4

[root@oracle ~]# rpm -qa vsftp*

vsftpd-2.0.5-16.el5

3．开机启动服务

[root@oracle ~]# chkconfig dhcpd on

[root@oracle ~]# chkconfig tftp on

[root@oracle ~]# chkconfig xineted on

[root@oracle ~]# chkconfig vsftpd  on

4．配置DHCP服务

[root@oracle ~]# cp /usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample  /etc/dhcpd.conf

将/etc/dhcpd.conf修改如下：

[root@oracle ~]# cat /etc/dhcpd.conf

ddns-update-style. interim;

ignore client-updates;

subnet 172.25.0.0 netmask 255.255.0.0 {

# --- default gateway

       allow booting;

       allow bootp;

       option routers               172.25.253.254;

       option subnet-mask              255.255.0.0;

       option time-offset          -18000;   # Eastern Standard Time

       next-server 172.25.5.88; #tfpt服务器的ip地址

       filename "pxelinux.0";

       range dynamic-bootp 172.25.5.172  172.25.5.198;

       default-lease-time 21600;

       max-lease-time 43200;

}

5．配置tftp服务

[root@oracle ~]# cp /usr/lib/syslinux/pxelinux.0  /tftpboot/

[root@oracle isolinux]# cp /mnt/isolinux/vmlinuz  /tftpboot/

root@oracle isolinux]# cp /mnt/isolinux/initrd.img /tftpboot/

[root@oracle isolinux]# cp /usr/lib/syslinux/menu.c32 /tftpboot/

[root@oracle tftpboot]# cp /mnt/isolinux/isolinux.cfg  /tftpboot/

在/tftpboot下生成一个pxelinux。cfg的文件夹

[root@oracle tftpboot]# mdir  pxelinux.cfg/

[root@oracle tftpboot]# mv /tftpboot/isolinux.cfg /tftpboot/pxelinux.0

[root@oracle pxelinux.cfg]#mv isolinux.cf default

将default文件修改为

[root@oracle pxelinux.cfg]# more default

default menu.c32    #作为菜单背景

prompt 0

timeout 9999

MENU TITLE Welcome to nestling syslinx

LABEL rescue

MENU LABEL BOOT in rescue mode for RHEL 5.4.x86_32

kernel vmlinuz

append initrd=initrd.img rescue noapic

MENU SEPARATOR

LABEL linux5.4x86_32

kernel vmlinuz

append initrd=initrd.img

6．将光盘中得数据同步到ftp服务器中中

[root@oracle ~]# sync  /mnt/* /var/ftp/pub/