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I changed the partition table on one HDD from GPT to MBR/MSDOS but I realized (too late) that it affected all partitions on the same HDD. Basically I lost data on the secondary partition which I wanted to keep.

I used gparted to perform the change of partition type.

How can I recover the data I had on my secondary partition? Nothing has been formatted, I've "only" changed the partition table (i.e. I guess destroy the previous partition table).

Recovering the data that was loosed is of more importance than getting to a HDD with MBR at the moment.

Thanks!

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It should go without saying, but I'll say it anyway: You're going to keep backups of all your important data from now on, right? (you happen to be very lucky this time: you can recover from this one) –  voretaq7 Mar 19 '13 at 15:29

3 Answers 3

If you (somehow) remember/backed up the previous PT, then just recreating it with the same layout should cut it IF you did not write to the disk. Otherwise, all bets are off.

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I've not written to the disk after the PT was changed. However, I don't have a PT backup... –  tknk Mar 19 '13 at 8:21
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Uh. Then this: forum.onmac.net/showthread.php?t=136 is an URL I would start with. GPT Keeps multiple backups of its data structures plus a Protective MBR, so you should be able to get it back - 'dd' your disk content somewhere before touching it again tho'. –  Alien Life Form Mar 19 '13 at 8:52

you can try use testdisk to recover partition table and files. http://www.cgsecurity.org/wiki/TestDisk

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You can use Aidfile Recovery software, which is a powerful partition recovery tool for restore files from size or type changed partition drives. It supports EXFAT / FAT32 / NTFS file systems.

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