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Ok I am in major trouble here!

I wanted to install Windows 8 in my Mac.. So I used BootCamp to partion my HardDisk and allocated some 100 GB for Windows.. All was well and Windows was installed..

After logging into windows, I further portioned the C: drive, using Right Click Computer --> Manage --> Disk Management... I shrunk my C: drive from 100 GB to 60 GB and named the new partion as D: which now has 40GB.. I messed around with the system-assigned partitions(the Mac partition, a 200 MB partition and 1 other) changing the drive letters a few times

Now when I restarted the system and went to boot menu(by pressing Option button), I could only see my Windows partition.. No way to log into my OS X!

What do I do? Was my tinkering around with the system partition drive letters somehow responsible for this? If no, then what is the problem?
And how do I rectify this and log into my OS X??

PLEASE HELP!!!

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I hope you backed up your Mac OS X partition first. –  Paul R Jan 3 '13 at 22:33
    
Thankfully YES! :) –  SatheeshJM Jan 3 '13 at 22:35
    
@PaulR Do you know how to restore my backup from my Windows 8?? –  SatheeshJM Jan 3 '13 at 23:51
    
I suggest booting from your Mac OS X install DVD and then use Disk Utility to try and repair the partition first. –  Paul R Jan 4 '13 at 6:00
    
OK. seems my iMac did not come with a Mac OS X DVD.. Aaargh! Any ideas @PaulR? –  SatheeshJM Jan 4 '13 at 9:49

1 Answer 1

Maybe you deleted the OS-X partition when creating the Windows partition, considering there was not one in the "Boot Menu".

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Nope.. There was no way of "deleting" the OS-X partition when partitioning using Boot Camp Assistant! It only allowed me to specify the size of the Windows partition. –  SatheeshJM Jan 3 '13 at 22:42
    
I think he meant from the windows disk management screen, since you said you messed around with the 200mb partition (probably the UEFI boot partition) –  Justin Jan 3 '13 at 23:09
    
@Justin Oh.. that would be the logical conclusion then, but by "messing around" I only changed the drive letters of the partitions(apart from shrinking the original partition). Sounds insane, but does just changing the drive letter have such terrible consequences? –  SatheeshJM Jan 4 '13 at 1:22
    
No, drive letter changes will be local to that install of windows, unless you change the drive from basic disk to dynamic disk (to allow windows raid 0/1/etc) as this also writes the disk letters to the partition. (this would also break any non-windows OS on there though). –  Justin Jan 4 '13 at 12:50

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