During our link-checking (which was a long and terrifying process, comparable to the labors of Hercules, although he would have had to perform many of his labors in the sun, which would have been even more grueling. But I digress.) *Ahem* During our link-checking, we noted that the PyPxeboot page seemed to have gone astray. It's since returned at a new address, http://grid.ie/pypxeboot/ . Please give it a warm round of applause.
The former URL, https://www.cs.tcd.ie/Stephen.Childs/pypxeboot/ now redirects to the new one.