OS X won't show OS X partition, but shows up (and works) in both Linux and Windows.

My Macbook Pro (early 2010, Intel 160 SSD) stopped working this weekend. I got the white screen with a folder with a question mark inside.
I checked if the drive was ok, and it seemed to be working, so i plugged it in a running Windows machine and booted Ubuntu from a USB stick. Drive shows up fine and works, i back up my stuff asap and go back to windows. Using MacDisk (or some other program, can't remember the name) i am also able to access the drive and copy stuff both to and from.
Lastly, after some time, i get a Lion installation to work on a USB drive and start it up. When i open Disk Utility it only shows a 1.52 GB partition called Mac OS X Base System and claims the drive is only that big. How can i resolve this?

Hi gkamani2011,
Thanks for using Apple Support Communities.  I would recommend the troubleshooting steps in this article if your Mac isn't fully booting into the Mac partition:
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
Cheers,
- Ari

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