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I unknowingly tried to change my 480 GB NTFS partition to ext4 from GParted. It did not warn me about any formatting, so i thought the data would be preserved. However, It encountered an error and now my partition is missing from nautilus. Gparted and disc utility show it as unknown unformatted partition.

I want to recover my data now. How can it be done?

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sleuthkit to recover files on the whole...or scalpel or similar to recover individual files on a partition if you just want a fire and forget. – RobotHumans Feb 24 '12 at 9:04
Can you use fdisk to change the partition type back to ntfs? – user8290 Feb 24 '12 at 11:19
I was unable to change it back to ntfs, no probs, had recovered the data by booting from a live cd.. :) copied it, and got rid of that drive.. :) thanks for your replies. – Mahesh Feb 26 '12 at 7:22
Don't forget to close/answer your question :) – Huckle Mar 17 '12 at 2:41
@Huckle Sorry, I checked only for closing it. I only found Delete option. And i didn't consider the status being left unanswered.. – Mahesh Mar 18 '12 at 8:33
up vote 0 down vote accepted

Live booting worked for me. Thanks for the response.

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