So, I have this awesome little 10GB external firewire hard drive. At one point, I restored an OS X install DVD on it in order to install OS X on a computer with no DVD drive. Unfortunately, it's now indestructible and I'm begging for any ideas of how to tame this beast. Things I've tried: 1) Using Disk Utility to erase it Result: Volume Erase failed with the error: Could not unmount disk 2) Unmounting disk Result: The disk “Untitled” could not be unmounted. Make sure that all applications and files are closed on this disk. * there are certainly no applications using ANYTHING on the disk. 3) Using 'sudo rm -r /Volumes/Untitled/*' Result: an overwhelming number of lines much like 'rm: /Volumes/Untitled/var: Invalid argument' 4) Ejecting the disk in finder Result: The disk "Untitled" is in use and could not be ejected. Try quitting applications and try again. * still no applications open 5) Booting into single-user mode and using 'diskutil verifyVolume Untitled' Result: The Powermac's fans take off line an airplane and I quit the command I ran and restart the computer... I don't want it to die or anything. EDIT: 6) Renaming the volume within Finder Result: The name "blah" cannot be used. Try using another name, with fewer characters or no punctuation marks. I hope to God that someone has a winning answer! Thanks in advance.