PXE脚本

没有注释的部分已经可以正常使用了，注释部分是新加的还没有测试。

运行脚本后按照输出提示输入您所要的dhcp配置：网段，网关，掩码和IP地址池。

脚本中可能要有些地方要注释掉- -因为最新改的忘了复制回来了

家里没法测试只能凭借印象改了一部分

脚本信息

 

#!/bin/bash
#
#    SCRIPT: pxe.sh
#    DATE: 01-01-2011
#    REV: 1.0
#    AUTHOR: SongKnight
#    E-Mail: [email protected]
#

定义变量

 

echo "-----------------------------------------------------------------------"
echo "-                           SETTING                                   -"
echo "-----------------------------------------------------------------------"
#read -p "input your want use Disk or ISO:[D/I]:" use
#if [ ! $use=D ] -a [ ! $use=I ]
#then
#    echo "You enter is error!"
#    exit
#fi
#if [ $use=I ]
#then
#    sed '34,38 s/#//g' pxe.sh

#    There are parameter to setting DHCP Service.
read -p "input your's net:" net
read -p "input your's netmask:" netmask
read -p "input routers's ip address:" route_ip
#    If you want to setting DNS's information in DHCP, please remove under line's #.
#read -p "input nameserver's ip address:" name_ip
#read -p "input domain-name:" domain
read -p "input tftp's ip address:" tftp_ip
read -p "input range ip address(e.g.192.168.0.1 192.168.0.255):" range_ip
clear
echo "Please confirm your's setting:
network = "$net"
netmask = "$netmask"
routers ip = "$route_ip"
tftp ip = "$tftp_ip"
range ip = "$range_ip""
#read -p "Do you confirm this setting:[yes/no]" confirm
#if [ $confirm=no ]
#do
#    echo "Please run this script again to reset!!!!"
#    exit
#fi

准备工作：包括更改yum配置文件，挂在光盘等；

 

#mkdir -p /pxe/linux
#read -p "input OS's iso path:" iso
#test -e ${iso}
#if $? -eq 1
#else exit 10 ; sh $0
#mount ${iso} /pxe/linux
#    This is setting yum.
cat > /etc/yum.repos.d/rhel-debuginfo.repo << EOF
[Server]
name=Server
baseurl=file:///mnt/Server
enable=1
gpgcheck=0

#[Server]
#name=Server
#baseurl=file:///pxe/linux/Server
#enable=1
#gpgcheck=0
EOF
#    Some OS is made alias cp='cp -i', so in here have change this alias.
alias cp=cp
cd /mnt/Server

安装配置DHCP服务
 

yum install dhcp -y || rpm -ivh dhcp-3*
#    Setting DHCP Service's configuration file. And save this file in /etc/dhcpd.conf
cat > /etc/dhcpd.conf << EOF
ddns-update-style interim;
ignore client-updates;
next-server ${tftp_ip};
filename "/tftpboot/linux-install/pxelinux.0";
subnet ${net} netmask ${netmask} {
        option routers          ${route_ip};
        option subnet-mask      ${netmask};
        option time-offset      -18000;
#       option domain-name-servers      ${name_ip};
#       option domain-name      "${domain}";
        range dynamic-bootp ${range_ip};
        default-lease-time 21600;
        max-lease-time 43200;
}
EOF
service dhcpd restart
chkconfig --level 345 dhcpd on

配置tftp服务

 

cat > /etc/xinetd.d/tftp << EOF
service tftp
{
disable = no
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = /tftpboot/linux-install/
per_source = 11
cps = 100 2
flags = IPv4
}
EOF
service xinetd restart
chkconfig --level 345 xinetd on
chkconfig --level 345 tftp on

配置nfs共享目录
 

cat > /etc/exports << EOF
/mnt    *(ro)
#/pxe/linux     ${net}(ro)
EOF

复制需要的文件到tftp共享目录中，最后是自己改的一个假的启动脚本 纯粹是为了好玩- -

cd /tftpboot
cp /mnt/images/pxeboot/initrd.img ./linux-install/
#cp /pxe/linux/images/pxeboot/initrd.img ./linux-install/
cp /mnt/images/pxeboot/vmlinuz ./linux-install/
#cp /pxe/linux/images/pxeboot/vmlinuz ./linux-install/
#cp /usr/lib/syslinux/pxelinux.0 ./linux-install/
cd /tftpboot/linux-install/
mkdir pxelinux.cfg
cd pxelinux.cfg
cat > default << EOF
default linux
prompt 1
timeout 30
label linux
        kernel vmlinuz
        append initrdinitrd=initrd.img
EOF
service nfs restart
chkconfig --level 345 nfs on
#    This is simply pxe start script.
#cat > pxe << EOF
##!/bin/bash
#case "$1" in
#    start)
#    sed '3,6 s/#//g' /etc/dhcpd.conf >&/dev/null
#    service dhcpd restart >&/dev/null
#    echo "pxe has start [successful]"
#    ;;
#    stop)
#    sed '3,6 s/^/#/g' /etc/dhcpd.conf >&/dev/null
#    service dhcpd restart >&/dev/null
#    echo "pxe has stop [unsuccessful]"
#    exit
#esac
#EOF
#chmod 755 pxe
#mv pxe /etc/init.d/