I created an installation of Ubuntu 11.10 using UNetBootin on a usb thumbdrive.
I've downloaded programs and installed them with apt-get so that they persist on the drive between boots.
What file stores these persisted files, if you were to look at it on a computer that had not been booted from the thumbdrive?
Okay after a bit of googling to figure out what I was looking for exactly...
And now I can mount it and get back at my files again.