Original title of post: External drive not ejected properly permissions error? Hi everybody, looking for some help here. Today, while running late for work, I grabbed my MacBook and accidentally unplugged my external drive (WD My Passport) which I hadn't ejected. Now, when I plugged it back in, it showed the generic grey HDD icon instead of the USB drive icon or Time Machine drive icon. When I opened it, all the files were visible for a second, then disappeared. Finder says I still have my ~300GB of data in the drive, apparently I just can't access it anymore. Tried changing permissions, no luck. Can't set it to ignore permissions because of "Error -50". Can't get inside through Terminal because of permissions (and when I try "sudo cd "My Passport"", nothing happens, I stay inside Volumes). Finally, disconnecting the drive (or reconnecting it), doesn't do anything, the disk icon stays on the desktop (can't eject) and I can still open it to see an empty Finder window. Help much appreciated! UPDATE Tried connecting the external HDD to a different Mac. Worked fine. Rebooted the MacBook and the stuck hard drive icon went away from the desktop. (I also finally updated OS X while I was at it.) However, when I cd into "Volumes" and do an ls, "My Passport" is still there even though the drive is disconnected. When connected, my HDD works like before, but it now mounts as "/Volumes/My Passport 2", which is admittedly not a major issue (as far as I can tell), but nevertheless something I would like to fix. As before, I'll appreciate any help.