Hello I am posting on the forums today because I urgently need help to save the files on my hard drive! So it all started when I booted up my MacBook Mid 2009 a while ago. The grey bar appeared under the apple logo while booting. It got to the end and then shut off immediately. So I tried fixing things and it all worked fine when I got disk warrior. I got into my hard drive and tried to back it up but it froze so I had to turn it off. When I restarted it booted straight to the recovery drive (mountain lion). The disk is there and I verified and repaired. Failed again. Booted into disk warrior, the computer being very slow. After d/w inspected the drive it gave me this: the disk cannot be rebuilt. The disk is still in use. Error code 2153, 4903. Now I understand that I must use terminal in the recovery drive to kill the process stopping disk warrior. I believe I have found it using: ls -la /Volumes/ But how so I kill it because there is no PID so the kill command tells me it's not a process. Please help! If you want me the copy and paste the stuff that comes up when I do ls -la /Volumes/ please ask.