User profile for user: Massken
Massken Author
User level: Level 1
18 points

External hard drive won't mount after power blip

After a momentary power interruption this morning, my external hard drive (on which I have a Time Machine backup) does not mount and does not appear in Finder. (It is a LaCie 2TB USB drive.) The device is recognized in System Information and Disk Utility, but an attempt to mount it in Disk Utility returns this error message:


Could not mount “disk2s2”. (com.apple.DiskManagement.disenter error -119930868.)


I have tried First Aid in Disk Utility but it fails. Restarting the computer did not help either.


I have a Mac Mini (Late 2014) running MacOS Big Sur Ver. 11.6.2.


Any suggestions would be appreciated. Thank you!

Mac mini, macOS 11.6

Posted on Jun 24, 2022 03:49 PM

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User profile for user: HWTech
HWTech
User level: Level 9
66,674 points

Posted on Jun 24, 2022 06:46 PM

If First Aid is unable to repair the drive, then you will most likely need to erase it and start over with a fresh TM backup.



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User profile for user: Owl-53
Owl-53
User level: Level 10
100,051 points

Jun 25, 2022 03:48 AM in response to Massken

To add to the good advise by @HWTech


Q - " I have a Mac Mini (Late 2014) running MacOS Big Sur Ver. 11.6.2."


A - This Version of Big Sur is somewhat dated as the current version of Big Sur is now 11.6.7


A - It is strongly suggested to perform a Time Machine Backup before attempting the update

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External hard drive won't mount after power blip

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