Perform the procedure for the 'I forgot my password' option (it will ask for access to the Wi-Fi network and to log in using the Apple ID)Īfter logging in, select 'Disk Utility' and then select the encrypted partition and mount it using the password that previously worked, and after installation BigSur stopped working. RESET PRAM Turn the computer off and on with the Option, Command (⌘), P and R keys (I'm not sure if this step is 100% necessary). I had an encrypted partition on macOS with my data.Īfter upgrading from macOS Catalina to macOS BigSur (MBPro 16' 2019), I was unable to decrypt the partition with my password.
