I have been trying and using the software from plop.at to boot on a machine where the bios does not allow booting to USB. More recently, I used again Plop on CD to boot to a machine which probably can, but I bypassed the bios anyhow because I found it faster to insert a CD and a usb stick and just press the power button, than discovering the bios of a machine I don't know.
I both cases I have been able to boot PCLinuxOS from USB stick.
Now what is new is that there are 2 different programs at plop.at which allow that, one is GPL'ed, and built with a recent kernel, and the other is not GPL'ed, written in assembler and available at no cost as well for personal than commercial use. So as long as the plop.at website is mentioned on the distributed CD or floppy, it becomes easy to get more people happy with more pclinuxos'es booting !
Unfortunately, I have the former plop made in assembler, that is less free (for personal use only) and it works perfect, so I don't have much will to upgrade to the newer and at the moment not enough time to try the newer programs. However I know many people here could be interested, so I bring the exact infos in case some of you want to give a try to these tools. Here are the relevant pages:
Pages to visit:http://www.plop.at/en/bootmanager/index.htmlhttp://www.plop.at/en/bootmanager/licence.html
The plopKexec GPL'ed program:http://www.plop.at/en/plopkexec.html
The plop boot manager non free:http://download.plop.at/files/bootmngr/plpbt-5.0.14.zip
The zip contains the iso, the img and more.
Have fun !