1 先将需要安装的系统文件挂载到/mnt：

    # mount -t cifs -o username=administrator,passwd=abcde //192.168.1.99/iso /mnt/

2  1-1   进入挂载的/mnt目录，RPM安装dhcp，tftp，kickstart：

    #rpm -ivh *kickstart*

    #rpm -ivh xinetd-2.3.14-10.el5.i386.rpm(tftp服务)

    #rpm -ivh dhcp-3.0.5-23.el5.i386.rpm

     rpm  dhcp-devel-3.0.5-23.el5.i386.rpm

    1-2   配置dhcpd：

    # cp /usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample  /etc/dhcpd.conf 

    # vi /etc/dhcpd.conf

        ddns-update-style interim;
        ignore client-updates;
        filename "pxelinux.0";
        next-server 192.168.1.22; （这里写入，不然的话系统会识别不到linux内核）
        subnet 192.168.1.0 netmask 255.255.255.0 {
                option routers                  192.168.1.22;
                option subnet-mask              255.255.255.0;
                option nis-domain               "domain.org";
                option domain-name              "domain.org";
                option domain-name-servers      192.168.1.1;
                option time-offset              -18000; # Eastern Standard Time
                range dynamic-bootp 192.168.1.128 192.168.1.229;
                default-lease-time 21600;
                max-lease-time 43200;
                # we want the nameserver to appear at a fixed address
                host ns {
                        next-server 192.168.1.22;
                        hardware ethernet 12:34:56:78:AB:CD;
                        fixed-address 192.168.1.22;
                }
        }
     #/etc/init.d/dhcpd

    1-3 配置tftp：

            # vi /etc/xinetd.d/tftp
            将disable设置为no

               kickstart无人职守安装_kickstart

                #/etc/init.d/xinetd start

                # netstat -a | grep tftp

                    udp        0      0 *:tftp              *:*                                                        off (0.00/0/0

        #cd /mnt/centos5/isolinux;cp * /tftpboot/;mkdir pxelinux.cfg

        然后将isolinux.cfg cp到新建的目录pxelinux.cfg，更名为：default

        #vi /tftpboot/pxelinux.cfg/default

                    default linux
                    prompt 0
                    timeout 1
                    display boot.msg
                    F1 boot.msg
                    F2 options.msg
                    F3 general.msg
                    F4 param.msg
                    F5 rescue.msg
                    label linux
                      kernel vmlinuz
                      append ks=http://192.168.1.22/ks/ks.cfg initrd=initrd.img
                    label text
                      kernel vmlinuz
                      append initrd=initrd.img text
                    label ks
                      kernel vmlinuz
                      append ks initrd=initrd.img
                    label local
                      localboot 1
                    label memtest86
                    "default" 24L, 397C



我们将定义好的ks.cfg文件通过http访问打开，由此需要安装httpd（安装httpd步骤掠过）

    1-4下面配置 kickstart：

# system-config-kickstart

            kickstart无人职守安装_kickstart_02

kickstart无人职守安装_无人职守安装_03

kickstart无人职守安装_kickstart_04

其他选项按照自己的需求选择即可。这里我们将配置好的ks.cfg文件保存到/var/www/html/ks目录下

kickstart无人职守安装_无人职守安装_05在

在/var/www/html/ks查看下ks.cfg文件：

        kickstart无人职守安装_kickstart_06

下面我们将系统盘文件拷贝到nfs的连接：/var/www/html/centos5

kickstart无人职守安装_kickstart_07

vi /etc/exports
/var/www/html/centos5   *(rw)

kickstart无人职守安装_无人职守安装_08

启动nfs和pormap服务：然后通过客户机网卡启动安装（请确认关闭selinux与防火墙，不然客户端会连接不到tftp服务）：