External 4TB SSD Drive won’t mount, take first aid or convert to APFS after upgrading to Ventura OSX

Question

External 4TB SSD Drive won’t mount, take first aid or convert to APFS after upgrading to Ventura OSX

So i have this 4TB Samsung external SSD formatted under Mac OS Extended (Journaled) that will not mount anymore after upgrading to Ventura OSX from Big Sur. It still shows up (greyed) on Disk Utility.

I tried manually mounting it but get error 49244.

I tried first aid and it fails with (-69845) error.

I tried converting it to APFS but that also fails with -69860 error.

Is there any way to fix this or should i buy a recovery software to extract everything. If so what is recommended? Disk Drill, Stellar? is there any that can re-create an entire image of the drive?

My assets in the SSD are mostly RAW, DNG photos and Sony, DJI camera movie files.

Any advice highly appreciated. Regards

Posted on Nov 23, 2022 1:25 AM

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Answer 1

bruno75

Community Specialist

Nov 24, 2022 2:02 PM in response to Ali_Hyder_Chy

Hey there Ali,

We'd like to help look into this with you, so let's rule out some possible causes first:

Have you tested a different external storage device to see if it occurs with it? Narrowing down between the Mac or the storage device is important.
Are you able to access that same external storage using a different Mac?
When it found that error when running First Aid on the external storage device with the issue, did it show an option to try fixing the (-69845) error it found? If yes, what occurred when you tried fixing that error?
Since you mentioned updating to macOS Monterey 13, the latest version for it is macOS 13.0.1. You can verify this by clicking on the Apple logo at the top left corner of the screen, then on ‘About This Mac’. In case you needed it, this link shows how to first back up, then Update macOS on Mac.
Sometimes unexpected behavior can be resolved with a restart. Check out the section 'Restart' here: Log out, sleep, wake, restart, or shut down your Mac

Cheers!

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Answer 2

steve626

Level 6

13,773 points

Nov 24, 2022 3:39 PM in response to Ali_Hyder_Chy

Have you tried booting into Safe Mode?

Start up your Mac in safe mode - Apple Support (IE)

Are or were you using any third party disk tools, from Samsung or elsewhere?

How is the external drive formatted?

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External 4TB SSD Drive won’t mount, take first aid or convert to APFS after upgrading to Ventura OSX

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