Originally Posted by CarGolden7
Well what I wanted to do was have the whole OS on the USB drive ready to go, and have it boot Windows if the USB isn't in it, and if I want Ubuntu I just insert the USB and it will load it all up ready to go. I want to avoid having an option to choose between the two when I boot up my laptop. I know of friends that have tried that option, and they say it usually starts screwing up after a few weeks.
Am I making any sense here? If so, can one of you guys help me out, or direct me to a source that can?
The easiest method is to "Try Ubuntu with no change to your computer." Once it boots, go to the System menu, choose Administration, then USB Startup Creator. (or, just press Alt+F2 and type 'usb-creator') Insert a second
USB flash drive and "Make startup disk" onto the 2nd flash drive. You will see an option for "persistence" which allows you to save your documents and settings "in reserved extra space"; choose this option and adjust the slider to how much space you want for your persistence file.
If you only have 1 flash drive, you can burn a Live CD and "Make startup disk" from the CD onto the flash drive, same process.