构建DHCP服务

--------------------DHCP 配置-------------------
# yum install dhcp -y
# vim /etc/dhcp/dhcpd.conf
# cp /usr/share/doc/dhcp*/dhcpd.conf.sample /etc/dhcp/dhcpd.conf
# vim /etc/dhcp/dhcpd.conf
# dhcpd.conf
default-lease-time 600;
max-lease-time 7200;
# A slightly different configuration for an internal subnet.
subnet 192.168.56.0 netmask 255.255.255.0 {
range 192.168.56.10 192.168.56.20;
option subnet-mask 255.255.255.0;
option routers 192.168.56.200;
next-server 192.168.56.200;
filename "pxelinux.0";
}
# dhcpd //测试DHCP
# /etc/init.d/dhcpd restart
--------------------编译引导文件和启动菜单----
# mkdir /var/lib/tftpboot/pxelinux.cfg
# cp /media/cdrom/isolinux/isolinux.cfg /var/lib/tftpboot/pxelinux.cfg/default
# vim /var/lib/tftpboot/pxelinux.cfg/default
default auto //默认安装状态
prompt 1 //由用户自己控制
label auto //图形界面
kernel vmlinuz
append initrd=initrd.img devfs=nomount ramdisk_size=8192
label linux text //文本界面
kernel vmlinuz
append text initrd=initrd.img devfs=nomount ramdisk_size=8192
label linux rescue //救援模式
kernel vmlinuz
append rescue initrd=initrd.img devfs=nomount ramdisk_size=8192
# /etc/init.d/dhcpd restart
# /etc/init.d/vsftpd restart
# /etc/init.d/xinetd restart
-------------------客户端测试
客户端从网卡引导
********************无人值守kickstart
# yum install system-config-kickstart -y //安装图形应答文件。
# vim anaconda-ks.cfg //安装本机时所创建的应答文件
# vim /etc/passwd
修改ftp用户家目录为：/var/ftp
# mkdir /var/ftp/rhel6
# cp -rf /media/cdrom/* /var/ftp/rhel6/
# system-config-kickstart
# cp ks.cfg /var/ftp/rhel6/
# vim /var/lib/tftpboot/pxelinux.cfg/default
default auto
prompt 0 //不等待用户应答
label auto
kernel vmlinuz
append ks=ftp://192.168.56.200/rhel6/ks.cfg initrd=initrd.img devfs=nomount ramdisk_size=8192
# /etc/init.d/dhcpd restart
# /etc/init.d/vsftpd restart
# /etc/init.d/xinetd restart
客户端安装：装机卡在 unsupported hardware detected 页面
在ks.cfg 增加一行：unsupported_hardware
-------------------客户端测试
客户端从网卡引导