Hi,
How to configure PXE server in centos to install ubuntu.

I have configure PXE server in centos, by following procedure.
and working fine for installing linux(centos).

PXE SERVER ON CENTOS

[root@suresh ~]# yum install dhcp tftp-server syslinux vsftpd system-config-kickstart

CONFIGURE DHCP SERVER :

[root@suresh ~]# vim /etc/dhcpd.conf

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

default-lease-time 600;
max-lease-time 7200;

allow booting;
allow bootp;
authoritative;

subnet 192.168.10.0 netmask 255.255.255.0 {
range 192.168.10.100 192.168.10.120;
next-server 192.168.10.53;
filename "pxelinux.0";

[root@suresh ~]# service dhcpd restart

CONFIGURE TFTP SERVER :

[root@suresh ~]# 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


[root@suresh ~]# cp /media/isolinux/* /tftpboot/

[root@suresh ~]# mkdir /tftpboot/pxelinux.cfg

[root@suresh ~]# cp /tftpboot/isolinux.cfg /tftpboot/pxelinux.cfg/default

[root@suresh ~]# cp /usr/lib/syslinux/pxelinux.0 /tftpboot/

[root@suresh ~]# service xinetd restart

CONFIGURE FTP SERVER :

[root@suresh ~]# cp -rv /media/* /var/ftp/pub/

[root@suresh ~]# vim /et/vsftpd/vsftpd.conf

anonymous_enable=yes

DISABLE FIREWALL
DISABLE SELINUX

[root@suresh ~]# service dhcpd restart
[root@suresh ~]# service xinetd restart
[root@suresh ~]# service vsftpd restart

Then Created a KICKSTART FILE using following command

[root@suresh ~]# system-config-kickstart
follow the instructions

COPIED THAT KICKSTART FILE INTO /var/ftp/pub/ks.cfg

[root@suresh ~]# vim /tftpboot/pxelinux.cfg/default

label linux "Install or Upgrade an Existing system"
kernel vmlinuz
append initrd=initrd.img linux ks=ftp://192.168.10.53/pub/ks.cfg


[root@suresh ~]#

Now please help me to how to configure pxe server in centos to install ubuntu.

Thanks
Suresh

Hi,
I have searched on google i got this solution, and working perfectly.

Install and configure the services.

DHCP
[root@fcld ]# yum install dhcp
[root@fcld ]# nano /etc/dhcpd.conf

ddns-update-style interim;
not authoritative;
option domain-name "codigolibre.org";
option domain-name-servers 196.3.81.132, 200.88.127.22;
option subnet-mask 255.255.255.0;
subnet 10.0.200.0 netmask 255.255.255.0
{
authoritative;
range 10.0.200.50 10.0.200.100;
allow unknown-clients;
allow booting ;
allow bootp ;
next-server 10.0.200.1;
filename "pxelinux.0";
}

Note: The 10.0.200.1 direction belongs to the same PXE server.

VSFTP
[root@fcld ]# yum install vsftp

TFTP
[root@fcld ]# yum install tftp-server
[root@fcld ]# nano /etc/xinetd.d/tftp
disable=no

Make the following directories
[root@fcld ]# mkdir /tftpboot/
[root@fcld ]# mkdir /tftpboot/images
[root@fcld ]# mkdir /tftpboot/pxelinux.cfg
[root@fcld ]# chmod -R 777 /tftpboot/

Copy those files to /tftpboot/
[root@fcld ]# cp /usr/lib/syslinux/pxelinux.0 /tftpboot/
[root@fcld ]# cp /usr/lib/syslinux/menu.c32 /tftpboot/

Create and edit the PXE menu config file.
[root@fcld]# nano /tftpboot/pxelinux.cfg/default
DEFAULT menu.c32
PROMPT 0
TIMEOUT 600
MENU TITLE Linux Installation

Config each one of the distros.
a) CentOS 5
[root@fcld ]# mkdir /tftpboot/images/centos/5/i386
[root@fcld ]# mkdir /var/ftp/centos/5/i386
[root@fcld ]# mount -o loop -t iso9660 ~/Centos5.iso /mnt
[root@fcld ]# cp -R /mnt/* /var/ftp/centos/5/i386/
[root@fcld ]# cp /var/ftp/centos/5/i386/images/pxeboot/vmlinuz /tftpboot/images/centos/5/i386/
[root@fcld ]# cp /var/ftp/centos/5/i386/images/pxeboot/initrd.img /tftpboot/images/centos/5/i386/

Add Centos entry on PXE menu:
LABEL Centos 5 (DVD-i386)
KERNEL images/centos/5/i386/vmlinuz
APPEND vga=normal initrd=images/centos/5/i386/initrd.img ramdisk_size=32768
METHOD=ftp://10.0.200.1/centos/5/i386/

b) Ubuntu 9.10
[root@fcld ]# mkdir /tftpboot/images/ubuntu-desktop
[root@fcld ]# mkdir /var/ftp/ubuntu-desktop
[root@fcld ]# mount -o loop -t iso9660 ~/Ubuntu-9.10.iso /mnt
[root@fcld ]# cp -R /mnt/* /tftpboot/images/ubuntu-desktop/
[root@fcld ]# cp -R /mnt/* /var/ftp/ubuntu-desktop/

Add the ubuntu entry to PXE menu:
[root@fcld]# nano /tftpboot/pxelinux.cfg/default
LABEL Ubuntu 9.10 Karmic Koala
KERNEL images/ubuntu-desktop/casper/vmlinuz
APPEND vga=normal boot=casper netboot=nfs nfsroot=10.0.200.1:/var/ftp/ubuntu-desktop/
initrd=images/ubuntu-desktop/casper/initrd.gz ramdisk_size=32768

Edit the file /etc/exports and add:
[root@fcld ]# nano /etc/exports
/var/ftp/ubuntu-desktop 10.0.200.0/255.255.255.0(rw,sync,no_root_squash)

Thanks
Suresh