From the Hardware 2.0 mailbag: Can you install Ubuntu on a USB flash drive?Yes, yes you can. Here's how.

But you can also download an ISO file for any of these operating systems and for many other Linux distributions and use the tool to copy the files to your USB flash drive.

Install Ubuntu onto USB flash drive There are a lot of Linux distros to choose from, but in our example, we are going to install Ubuntu using a Windows machine.