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PXE Boot Server of CentOS 5 on a CentOS setup

Rumi, May 31, 2013

Setting up PXE Server

Install some packages that is required for PXE server.
[root@dlp ~]# yum -y install system-config-netboot syslinux xinetd tftp-server

Run TFTP server
[root@dlp ~]# vi /etc/xinetd.d/tftp

# line 14: change
disable =no
[root@dlp ~]# /etc/rc.d/init.d/xinetd start

Starting xinetd: [ OK ]

[root@dlp ~]# chkconfig xinetd on

Install DHCP server-

yum install dhcp

configure DHCP server at- nano /etc/dhcps.conf. Sample configuration file as below-

ddns-update-style interim;
ignore client-updates;

subnet 192.168.168.0 netmask 255.255.255.0 {

# --- default gateway
option routers 192.168.168.5;
option subnet-mask 255.255.255.0;

option nis-domain "domain.org";
option domain-name "domain.org";
option domain-name-servers 114.130.5.5;
filename "/linux-install/pxelinux.0";
next-server 192.168.168.5;

# option time-offset -18000; Eastern Standard Time
# option ntp-servers 192.168.1.1;
# option netbios-name-servers 192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
# option netbios-node-type 2;

range dynamic-bootp 192.168.168.128 192.168.168.200;
default-lease-time 21600;
max-lease-time 43200;

# we want the nameserver to appear at a fixed address
# host ns {
# next-server marvin.redhat.com;
# hardware ethernet 12:34:56:78:AB:CD;
# fixed-address 207.175.42.254;
# }
}

Basic PXE configuration is done.

Network Install Begins

[root@dlp ~]#mkdir /mnt/iso
[root@dlp ~]#mount -t iso9660 -o loop ./CentOS-5.5-x86_64-bin-DVD-1of2.iso /mnt/iso
[root@dlp ~]#cp /mnt/iso/images/pxeboot/vmlinuz /tftpboot/linux-install/
[root@dlp ~]#cp /mnt/iso/images/pxeboot/initrd.img /tftpboot/linux-install/
[root@dlp ~]#cp /usr/lib/syslinux/pxelinux.0 /tftpboot/linux-install/
[root@dlp ~]#vi /tftpboot/linux-install/pxelinux.cfg/default

# create new

default centos5

label centos5
kernel vmlinuz
append load initrd=initrd.img devfs=nomount

A small comment- in my distribution /usr/lib/syslinux had to use /usr/share/syslinux

2] Run HTTP server. See here to install it.
[root@dlp ~]#vi /etc/httpd/conf.d/pxeboot.conf


# create new

Alias /centos5 "/mnt/iso"
<Directory /mnt/iso>
Options Indexes FollowSymLinks
Order deny,allow
Deny from all
Allow from 127.0.0.1 10.0.0.0/24
# IP address you allow

</Directory>

[root@dlp ~]#/etc/rc.d/init.d/httpd restart
Stopping httpd:[ OK ]
Starting httpd:[ OK ]

Your PXE server is ready to roll.

Footnotes:

1. You may need to restart tftp server and it's not that easy- first use this long command to restart TFTP-

/sbin/chkconfig –level 345 xinetd on /sbin/chkconfig –level 345 tftp on

then restart xinetd by /etc/init.d/xinetd restart

2. Don't forget to stop iptables! stop it by /etc/init.d/iptables stop

src:

http://www.server-world.info/en/note?os=CentOS_5&p=pxe&f=2

http://www.server-world.info/en/note?os=CentOS_5&p=pxe&f=1

Configurations (Linux) CentOSPXE

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Myself…

Hi, I am Hasan T. Emdad Rumi, an IT Project Manager & Consultant, Virtualization & Cloud Savvyfrom Dhaka, Bangladesh. I have prior experience in managing numerous local and international projects in the area of Telco VAS & NMC, National Data Center & PKI Naitonal Root and CA Infrastructure. Also engaged with several Offshore Software Development Team.

Worked with Orascom Telecom-Banglalink, Network Elites as VAS partner, BTRC, BTT (Turkey) , Mango Teleservices Limited and Access to Informaiton (A2I-UNDP)

Currently working at Oracle Corporation as Principal Technology Solution and Cloud Architect.

You can reach me [h.t.emdad at gmail.com] and I will be delighted to exchange my views.

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