Assistance in this matter would be greatly appreciated... Last night (early this morning?) I was messing around with my old external hard drive, for which I had never quite figured out how to change the permissions from read only to read/write, and I decided it was time to wipe the drive and start fresh. I already had all the files I needed off of it, and I felt that I was beginning to run out of space on the Mac HD. This was the first time I had opened the Disk Utility. I did something stupid, out of experimentation, and now I can no longer see the external hard drive. It is connected via USB. The system profiler sees it as: 5000LE v01.00.00: Version: 1.00 Bus Power (mA): 500 Speed: Up to 480 Mb/sec Manufacturer: Maxtor Product ID: 0x5010 Serial Number: Y2VA3JQE Vendor ID: 0x0d49 The terminal, however, sees only: dhcp31-9-90:~ thomasmyers$ cd /volumes dhcp31-9-90:/volumes thomasmyers$ ls -a . .. Macintosh HD dhcp31-9-90:/volumes thomasmyers$ And this, therefore, is where the combination of my sparse unix knowledge and even thinner Mac knowledge fails me. If you must know what I did to end up in this situation, I opened the disk utility, clicked on the Maxtor external hard drive, went to the partition menu and clicked the partition button. I don't remember if it was GUID, Apple, or Master Boot Record. I just remember seeing that through to completion, and then scratching my head, wondering why I did that, and what repercussions would ensue. Now I know! I've effectively shut myself out, as I'm sure countless other users have done with their external hard drives. I've just done it in a way that I've never seen anyone else do before. So, as I said before, I genuinely appreciate any help that can be provided to get me out of this predicament. This problem is beyond me.