MBP stopped recognizing my 2 TB Seagate external

Question

Level 1

12 points

MBP stopped recognizing my 2 TB Seagate external

I accidentally unplugged my external drive and now it is not being recognized by my MBP. The following are the error messages that I get when first plugged in then attempting to use First Aid and Mount. Help would be greatly appreciated. Thank you.

MacBook Pro 13″, macOS 10.15

Posted on Aug 20, 2020 2:38 PM

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Answer 1

HWTech

Level 9

69,194 points

Aug 20, 2020 8:44 PM in response to brokenback5

You can try using the paid app Disk Warrior to see if the file system can be repaired. Disk Warrior has been known to work miracles on reviving a file system in order to access data, but there are no guarantees.

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Answer 2

Aug 21, 2020 3:29 AM in response to brokenback5

I remember DiskWarrior; if it's as good now as it used to be, I'd recommend it!

DiskWarrior didn't fix corruption of a directory (akin to using tape to stick things back together!) but rather it built a new directory which was always perfect.

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Answer 3

Aug 23, 2020 4:18 AM in response to brokenback5

brokenback5 wrote:

DiskWarrior has successfully built a new optimized directory for the disk named "Untitled 1." The new directory is ready to replace the original directory.

Did you allow it to replace the original directory? My guess is you need to do that because it's your only option - whether it works or not. It'll probably work.

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Answer 4

brokenback5 Author

Level 1

12 points

Sep 17, 2020 8:36 AM in response to brokenback5

Reinstalled DiskWarrior and I have successfully brought the external drive back to life.

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Answer 5

Aug 20, 2020 2:50 PM in response to brokenback5

That probably needs to be erased (re-formatted), I'm afraid.

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Answer 6

brokenback5 Author

Level 1

12 points

Aug 22, 2020 6:18 PM in response to The_Knowledge_Seeker

OK, I ran DiskWarrior and here is what I got:

- DiskWarrior has successfully built a new optimized directory for the disk named "Untitled 1." The new directory is ready to replace the original directory.
- The original directory is damaged and it was necessary to scavenge the directory to find file and folder data.
- Some files that had been lost or thrown away may have been recovered.
- The disk was not mounted prior to rebuilding. Only the preview disk will appear if you preview the replacement directory.
- Comparison of the original and replacement directories could not be performed because the original directory was too severely damaged. It is recommended that you preview the replacement directory.

I used Disk Utility and I am unable to mount the drive. Same error message that I posted initially. The same with First Aid.

I have no idea how to get to the point that I can Preview the data, that button is also grayed out in DiskWarrior.

Help would be so appreciated. Thank you.

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Answer 7

Aug 23, 2020 4:28 AM in response to brokenback5

When Disk Warrior says "DiskWarrior has successfully built a new optimized directory for the disk named "Untitled 1." The new directory is ready to replace the original directory." you should have a button that performs the replacement.