Erased partition on Mac using disk utility by mistake

How to use TestDisk to recover lost partition
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Joined: 15 Mar 2018, 17:18

Erased partition on Mac using disk utility by mistake

#1 Post by jwpcxs » 15 Mar 2018, 17:32

Hi Everyone,
I know this story sounds the same as everyone else and I have searched but I cannot seem to find how to fix my problem:

I erased a partition using disk utility on my mac thinking I had a backup of it.
I tried using test disk for over a week now and I still can't figure it out.
I even tried the suggestion of Repair a Mac OS X HFS+ Partition table and then ran test disk again.
I un mounted all partitions and I am trying the disc image copy option (the erased partition) to an external. Is this correct?

I don't see the following menu from another post.
run TestDisk, Advanced, Boot, RebuildBS, List and if you can see your files, choose Write, confirm

When I click advanced, there is no "Boot" option

Thank you in advance

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Re: Erased partition on Mac using disk utility by mistake

#2 Post by cgrenier » 16 Mar 2018, 06:55

"Advanced, Boot, RebuildBS" is to repair FAT, exFAT or NTFS filesystem, for HFS+, it's Superblock, but from your problem description, you are not in the case of damaged filesystem.
If it's a problem of deleted partition, TestDisk should recover it after Analyse, Quick Search and if necessary Deeper Search.
If the partition has been reformated, use PhotoRec.

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Joined: 02 Apr 2018, 18:04

Re: Erased partition on Mac using disk utility by mistake

#3 Post by kaneda » 02 Apr 2018, 18:06

Hi jwpcxs,
Could you resolve the incident?. I have the same problem but could not recover my lost partition.
Please tell me if you resolve and how.
Thanks in advance.

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