Hey guys! Here's my problem. I had some issues with my macbook pro hd, so i decided to format it and to return all the data from back up copy. When I was copying I thought computer got stucked and turnd it off with the button. Now when I turn it on and boot from the external hd, the system doesn't see the internal hd, disk utility shoes the partition in grey colour and can't erase it, it stucks at "unmounting disk" step. I have used a lot of different programs to format the internal hd, but everything just stucks when I'm dealing with internal hd (I used ipartition, TechTools, Drive Genious etc) The only thing that I didn't try is booting from the cd which came with the computer, because I don't have it with me right now. I tried a lot of different disk verifications, fsck also, this all didn't help. So my main question is how do I format the HD inside, without stucking in ejeckting disk step or maybe I can solve the problem without formatting at all? Thanks!