perhaps he means he wants to install Linux on a pen drive with full persistence, which UNetbootin does not provide. LiLi USB Creator for Windows (http://www.linuxliveusb.com/
) is an alternative to UNetbootin that does much the same thing, although it can also create USB pen drive Linux installations with persistence (http://www.linuxliveusb.com/en/faq-pers ... ot-do.html
). Perhaps that would satisfy him.
But I think he means: Use a large-capacity USB pen drive (e.g. 32 Gb or more), treat it as a (removable) HDD and install Linux on it with full persistence (including kernel). I've never seen that done or tried it myself. However, given that one can perform a full Linux installation on an external HDD with USB cable, I wonder if it would be possible to use a large-capacity pen drive to do the same thing. If I were to try such a thing with SL specifically I'd want to have a USB pen drive with at least 64 Gb capacity, otherwise it would not be worthwhile, and those are still expensive. A 16 Gb pen drive could be tried for a smaller distribution such as Puppy or PCLinuxOS, though (for example I have PCLinuxOS installed on an old laptop with a 10 Gb HDD and it works quite well).