tftp server on ubuntu

Install required packages
apt-get install xinetd tftpd tftp

Create /etc/xinetd.d/tftp and put this contents
service tftp
{
protocol        = udp
port            = 69
socket_type     = dgram
wait            = yes
user            = nobody
server          = /usr/sbin/in.tftpd
server_args     = /tftpboot
disable         = no
wait = yes
}

Create a folder /tftpboot for tftp base directory

Restart the xinetd service.
$ sudo /etc/init.d/xinetd stop
$ sudo /etc/init.d/xinetd start

Original source from
http://mohammadthalif.wordpress.com/2010/03/05/installing-and-testing-tftpd-in-ubuntudebian/