[edit: problem solved, see here]
I’m in the verge of loosing some important data which I would like to avoid by any means.
So this is my last hope. Can you, dear internet souls, advice me into some reasonable solution?
Basically I installed windows 8 through Bootcamp with a 100GB partition.
I then decided 50GB would be enough, and from inside windows I shrinked the partition from 100GB to 50GB.
That left me with a 50GB unallocated partition. So I clicked in the partition (again, from windows8 disk utility) and ask to format it to exFAT.
Now the problem: windows asked me to assign a letter to it, and I picked the first one avaiable. As it turned out this was taken (by the Mac I suppose) and windows did something strange. From that point on I could no longer see my OSX partition in the boot window (the one I see when keeping alt/option pressed). I couldn’t even boot on windows (it jumps to some Windows auto-repair attempts loop which now I regret may have only made my situation worse).
Now the troubleshooting part:
If I boot up with a MountainLion USB boot stick (thanks PB!) I can go to the Mac Disk Utility and see three partitions in the HD (400GB, 50GB, 50GB). The first one (400GB) was supposed to be my OSX partition, but it says:
Mount Point : Not mounted
Partition Type: Windows_LDM
Capacity : 400.86GB
Available : –
Used : –
Now if I boot up with Linux (Ubuntu Rescue Mix live dvd) and try any of the basic recovery commands I get:
Error: Both the primary and the backup GPT tables are corrupt. Try making a fresh table, and using Parted’s rescue feature to recover partitions.
Any hardcore suggestion? I’m accepting anything from linux hacks to redo the GPT table forcing it to match my original ideal tables, or mac or, …
I don’t care about the windows partitions, so for me they are as good as dead. I’m only concerned about the OSX data.
I remember from my days of Linux that I could try to force a change of partition type without reformatting. But that will only work if windows changed the partition type but didn’t did it properly. I’m not sure this is relevant though. I’m not even sure whateheck a GPT table is …
AppleCare is not much more helpful (they are nice to speak with, but didn’t get very far). So the internet is my last hope …
Thanks a lot, any help is appreciated 🙂