PXE+NFS+DHCP+TFTP+KICKSTART自动安装
1需要的软件
tftp-server NFS DHCP 三个文件均可yum -y install xxx*安装即可
[以下红色字段均为修改的地方]
2配置
2.1 挂载CENTOS光盘 因为需要里面的文件
mount /CENTOS.iso /mnt/cdrom
2.2 新建mkdir /tftpboot
cp /mnt/cdrom/isolinux/* /tftpboot
2.3 进入/tftpboot新建目录 mkdir pxelinux.cfg
cp /mnt/cdrom/isolinux/isolinux.cfg /mnt/cdrom/isolinux/pxelinux.cfg/
mv isolinux.cfg default
2.4拷贝ISO镜像文件
mkdir /disk
cp /mnt/cdrom/* /disk
3配置文件
3.1配置tftp文件
# default: off
# description: The tftp server serves files using the trivial file transfer \
# protocol. The tftp protocol is often used to boot diskless \
# workstations, download configuration files to network-aware printers, \
# and to start the installation process for some operating systems.
service tftp
{
disable = no 修改1
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -u nobody -s /tftpboot 修改2
per_source = 11
cps = 100 2
flags = IPv4
}
~
#################### 需要修改的地方
修改1 将之前的yes改为no
修改2 将之前的-s /tftpboot 改为任何用户 -u nobody -s /tftpboot
启动服务 /etc/inid.d/xined start
3.2 配置DHCP
拷贝配置文件
vi /etc/dhcpd.conf
option domain-name "systeng.net";
default-lease-time 6000;
max-lease-time 11400;
authourtative;
ddns-update-style ad-hoc;
log-facility local7;
subnet 192.168.1.0 netmask 255.255.255.0{ ##自动获取的网段
range 192.168.1.11 192.168.1.155; ##获取的IP段
option domain-name-servers 202.99.160.68;
option domain-name "systeng.net";
option netbios-name-servers 192.168.1.65; ##nfs服务器地址
option routers 192.168.1.1; ##网关
option broadcast-address 192.168.1.255;
default-lease-time 6000;
max-lease-time 11400;
filename "/pxelinux.0";
next-server 192.168.1.65;
}
启动DHCP service dhcpd restart
3.3配置NFS
在/etc/exports中添加
/disk *(ro,sync) ###获取安装文件/disk和自动获取IP 用 * 代替
最后使用exportfs –a 启动
4 进行自动化安装
4.1 kickstart自动安装配置文件（ks.cfg）:
#yum install system-config-kickstart
#system-config-kickstart
在界面中选择需要自动配置的人工干预选项目。
生成ks.cfg文件保存到/pxeks下面。