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I ran fdisk -l then I connected my USB drive to my computer and ran fdisk -l again but the list of drives didn't change at all.

What can I do?

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first check lspci and see if it appears. – RobotHumans Dec 30 '12 at 20:38
@AbrahamVanHelpsing lspci for an USB drive? I assume you meant lsusb. – gertvdijk Dec 30 '12 at 20:47
correct. i was having a moment – RobotHumans Dec 30 '12 at 20:49

plug the USB in, and run in terminal:

$ lsusb > 1

unplug the USB, and run:

$ lsusb > 2

And follow by this:

$ diff 1 2

What output do you get?

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