Install and Configure PXE Server

PXE (Pre-boot eXecution Environment)

Install Required Packages :

# yum -y install dhcp tftp-server syslinux httpd vsftpd system-config-kickstart

Configure DHCP Server :

# vim /etc/dhcp/dhcpd.conf

===============================================================

option domain-name "example.org";

option domain-name-servers ns1.example.org, ns2.example.org;

default-lease-time 600;

max-lease-time 7200;

ddns-update-style none;

log-facility local7;

subnet 10.0.0.0 netmask 255.255.255.0 {

range dynamic-bootp 10.0.0.220 10.0.0.250;

allow booting;

allow bootp;

default-lease-time 600;

max-lease-time 7200;

next-server 10.0.0.202;

filename "/pxelinux.0";

}

===============================================================

Configure TFTP Server :

# vim /etc/xinetd.d/tftp

=====================================================

service tftp

{

socket_type = dgram

protocol = udp

wait = yes

user = root

server = /usr/sbin/in.tftpd

server_args = -s /tftpboot

disable = no

per_source = 11

cps = 100 2

flags = Ipv4

}

===============================================================

# mount -t iso9660 -o loop CentOS-6.0-x86_64-bin-DVD1.iso /mnt/iso

# cp -a /mnt/iso/* /tftpboot

# mkdir /tftpboot/pxelinux.cfg

Create Kickstart file :

# system-config-kickstart

Save ks.cfg in /var/ftp/pub

# vim /var/ftp/pub/ks.cfg

#platform=x86, AMD64, or Intel EM64T

#version=DEVEL

# Firewall configuration

firewall --enabled --ssh

# Install OS instead of upgrade

install

# Use network installation

url --url="ftp://10.0.0.202/pub/iso"

# Root password

rootpw --iscrypted $1$A1SYVVrG$4vMq7X4bUrzQW4OKydPAf/

# System authorization information

auth --useshadow --passalgo=sha512

# Use graphical install

graphical

firstboot --disable

# System keyboard

keyboard us

# System language

lang en_US

# SELinux configuration

selinux --enforcing

# Installation logging level

logging --level=info

# Reboot after installation

reboot

# System timezone

timezone Asia/Kolkata

# Network information

network --bootproto=dhcp --device=eth0 --onboot=on

# System bootloader configuration

bootloader --location=mbr

# Clear the Master Boot Record

zerombr

# Partition clearing information

clearpart --all

%packages

@basic-desktop

@desktop-platform

@fonts

@general-desktop

@graphical-admin-tools

====================================================

Create pxemenu :

# vim /tftpboot/pxelinux.cfg/default

===============================================================

timeout 100

default menu.c32

menu title ########## PXE Boot Menu ##########

label 1

menu label ^1) Install CentOS 6

kernel vmlinuz

append initrd=initrd.img linux ks=ftp://10.0.0.202/pub/ks1.cfg method=ftp://10.0.0.202/pub/iso devfs=nomount

#label 2

# menu label ^2) Install CentOS 6.2

# kernel vmlinuz

# append initrd=initrd.img linux ks=ftp://10.0.0.202/pub/ks1.cfg method=ftp://10.0.0.202/pub/6.2 devfs=nomount

label 2

menu label ^2) Boot from local drive

localboot

===============================================================

# cp /usr/share/syslinux/pxelinux.0 /tftpboot

# cp -vr /mnt/* /var/ftp/pub/

# vim /etc/vsftpd/vsftpd.conf

# Example config file /etc/vsftpd/vsftpd.conf

#

# The default compiled in settings are fairly paranoid. This sample file

# loosens things up a bit, to make the ftp daemon more usable.

# Please see vsftpd.conf.5 for all compiled in defaults.

#

# READ THIS: This example file is NOT an exhaustive list of vsftpd options.

# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's

# capabilities.

#

# Allow anonymous FTP? (Beware - allowed by default if you comment this out).

anonymous_enable=YES

#

# Uncomment this to allow local users to log in.

local_enable=YES

#

# Uncomment this to enable any form of FTP write command.

write_enable=YES

#

# Default umask for local users is 077. You may wish to change this to 022,

# if your users expect that (022 is used by most other ftpd's)

local_umask=022

#

Restart & On all the services to persist on reboot..

# service dhcpd restart

# service xinetd restart

# service vsftpd restart

# chkconfig vsftpd on

# chkconfig dhcpd on

# chkconfig xinetd on

# setenforce 0