I am trying to install Ubuntu over a network with TFTP. The idea is that you can just boot a computer, hit F2 or whatever, and Ubuntu gets installed automagically, along with a bunch of custom configuration files. I found several tutorials on the Internet, explaining how to do this. None of them work. I am having the exact same problem every time: TFTP just won't work!
More specifically: TFTP runs fine, no errors, I can see it running when I pgrep it, but when I run a port scan on the computer, TFTP doesn't appear in the list. I have tried this with at least 3 different TFTP servers, 3 or 4 configurations each, and several tutorials, on 2 different computers (both IBM Thinkcentres running Ubuntu Maverick, if that helps) with exactly the same problem. I have tried seeing if it's a firewall problem--no luck. First, all the other ports that I use work just fine. Second, I even tried twiddling with ufw to see if that was the problem, and it still didn't work.
I have gone looking all over the Net to find a solution, and I'm just about at the end of my rope! I'm pretty good at fixing computer problems, even really weird ones, but this one's got me mystified. I've been trying different things for several months, on and off, and I really need to get this working.
Thank you in advance for your help.