I have an old Lacie 250 GB external hard drive that I bought a couple years ago, and I want to give it to my brother. But before I do, I want to wipe it clean, using something like Darin's Nuke and Boot. I tried using Darin's Nuke and Boot, but it didn't recognize the external usb drive. I know I can reformat the external drive with GParted, but I want to completely erase the data on it so that nothing can be recovered (were someone to run one of those undelete programs). I've searched Google for tutorials but, to my surprise, haven't been able to find any instructions on how to perform this task using Linux.