Macintosh HD won't repair, won't mount, won't boot. Any suggestions for saving data?
I'm in a spot of difficulty with my MacBook Pro running Snow Leopard. It was working fine until this morning, but now seems to be completely damaged:
- MBP wouldn't start up (spinning cog never loading at start).
- I booted from Snow Leopard Installer Disk. I went into Disk Utility and tried to verify my HD:
- Macintosh HD can not be verified ('Invalid node structure'). It suggests clicking 'repair disk':
- Repair disk won't work. It suggests I back up and reformat.
- 'Macintosh HD' now appears grey in the left side bar and cannot be mounted (even by using prompts in Terminal).
- When I go to 'Startup Disk' under Utilities, it cannot locate Macintosh HD.
Given that I cannot mount or boot from the disk, does anyone have any suggestions on how I can retrieve my data? Perhaps booting from an external drive and then running 'Data Rescure' or similar on the corrupted HD?
If I manage to rescue my data, I'll then reformat the HD. But given it can't be mounted, I'm not entirely sure I will be able to.
Thanks very much in advance for any assistance.
MacBook Pro, Mac OS X (10.6.3)