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Anyone have/had a problem with accessing encrypted external drive after Big Sur upgrade from Catalina, 2018 MAC Mini?
My workaround for now was to decrypt the drive on another MAC Mini Running Catalina.
I found a solution, reset the SMC...
The link below is the solution for two of my issues which seems to do with the T2 Security Chip. One is this post about Encrypted external drive not accessible after Big Sur upgrade from Catalina and another issue (I did not post) I just encountered when trying to unlock System Preferences to administer users in Users & Groups. This occurs when clicking on the pad lock and enter the password to make changes.
Link to solution-
https://support.apple.com/en-us/HT203127... "If you can't unlock settings in System Preferences"
Link to Reset SMC (T2 chip): https://support.apple.com/en-us/HT201295
I am glad this information is in the support pages. I like Apple to also add to the support article that it also affects access to encrypted drives. It would help in searching for that solution.
My product info: 2018 MAC Min Catalina updated to Big Sur 11.1.
I found a solution, reset the SMC...
The link below is the solution for two of my issues which seems to do with the T2 Security Chip. One is this post about Encrypted external drive not accessible after Big Sur upgrade from Catalina and another issue (I did not post) I just encountered when trying to unlock System Preferences to administer users in Users & Groups. This occurs when clicking on the pad lock and enter the password to make changes.
Link to solution-
https://support.apple.com/en-us/HT203127... "If you can't unlock settings in System Preferences"
Link to Reset SMC (T2 chip): https://support.apple.com/en-us/HT201295
I am glad this information is in the support pages. I like Apple to also add to the support article that it also affects access to encrypted drives. It would help in searching for that solution.
My product info: 2018 MAC Min Catalina updated to Big Sur 11.1.
Hi
Your situation is different than mine. My drive was encrypted using Catalina and working however, it appears something in the process of updating to Big Sur upset the T2 chip. I can say this because it happened on both my MAC Minis when updating. Resetting SMC did it for me.
Have you found a solution to this? I'm creating a new APFS+ encrypted drive but as soon as I unmount the drive I cannot mount it back.
Encrypted external drive not accessible after Big Sur upgrade from Catalina, 2018 MAC Mini
