1) Enable TFTP in inetd.conf
Open up /etc/inetd.conf and look for the following line:
kelvin@pluto:~$ vi /etc/inetd.conf #tftp dgram udp wait root /usr/sbin/in.tftpd in.tftpd -s /tftpboot -r blksizeThis is on line 72 for me (hint: in vi press ctrl+c, then :set number). Uncomment it. If you don't have this line, bummer. Search for in.tftpd and use that as a substitute.
kelvin@pluto:~$ which in.tftpd /usr/sbin/in.tftpd kelvin@pluto:~$
2) Create the TFTP directory
As you can see, we need the directory tftpbood. Create it.
kelvin@pluto:~$ sudo mkdir /tftpboot
3) Restart inetd
kelvin@pluto:~$ sudo kill -1 [inetd pid]
You can get the inetd pid by typing:
kelvin@pluto:~$ ps -aux | grep inetdCheers.
Edit: A colleague in New Zealand was searching for something and stumbled upon this page. I gave him the tip that if you need to find the tftp server (or any service), you can do it based on port:
lsof -i :69