Mods feel free to move this if I posted in the wrong location.

My goal is to use a 2gb flashdrive to have an extremely fast and lightweight installation with Chrome and Java so I can run it on any computer.

I've been fiddling with this over the past two days and have tried a few distros for a few mins each. Some report not enough space when trying to install java, some run a bit laggy, Ubuntu was very slow.

I guess I don't know exactly what I'm doing. Can someone help out a noob?