I had a DVD drive and a external hard drive connected to my PC and I've disconnected them accidentally. Now I've already spent hours trying to access them, mount, umount and can't figure how to connect the devices again. Can't believe how such a simple thing can be such a headache in linux I can see the directory where the devices were mounted previously, but a there is nothing inside them. Can anyone help me out? I'm new to Linux and I'm finding this very frustrating at the moment.