As part of getting my desktop working again, it'd help to be able to
mount and unmount my flash drive from a command line, but I couldn't
figure out how to work out just which device name to use. A question on
fedoraforum had an answer in just a few hours, and I'm almost ashamed to
admit that I didn't think of it myself. As root,
fdisk -l
will tell you exactly what you need. D'oh!