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I have recently encountered the error "com.apple.DiskManagement error -69874" upon trying to conduct First Aid on a disk. Here's a picture of the full log:
Of course, some information is censored, but I had reasonably important info on that drive. It won't mount, either, and I really want it back.
The drive is USB 2.0 and my computer's USB ports are both 3.0.
I'd appreciate your help,
McBoat
MacBook Air, macOS Sierra (10.12.1)
You might want to consider starting a new discussion. Since this one is marked solved, less people are likely to look at it. A new post would be much more visible. You can link to this one.
No more checks? Could you explain what you mean by that?
Did you try the SMC reset posted above?
It won't mount, either,
Try resetting the SMC: Reset the System Management Controller (SMC) on your Mac - Apple Support.
If you are able to mount it, use that opportunity to extract as much undamaged content from that disk as possible. The hard disk itself cannot be fixed and at least some data is already irretrievably gone.
I've had this problem for a while. Just my luck, I lost the receipt and it's a 512gb SSD.
So what is the fault? the drive is dead? Just trying to get my head around it.
I'm so sorry I wasn't able to reply to you until now! Your suggestion to reset the SMC worked perfectly. I did so, and the media mounted instantly upon insertion. Thanks so much! 🙂
Sorry for the inconvenience, and I hope you had a happy Thanksgiving! Bye!
In my case it's a brand new 5TB HDD, used for TimeMachine... Partition map is now "fixed", but no more checks... what's going on? There's 3TB history stored...
Thank you, Eric,
after resetting the SMC I could do a repair and fix the missing links... guess the HDD choked on copying the 3 TB from the old TM...
Again, thank you!
com.apple.DiskManagement error -69874
