This morning I tried upgrading from M to V - M1 Macbook Pro 2021. When it rebooted, it went into Recovery, prompting for id/password to decrypt disk and then reboots again.
I'm quite sure I did not encrypt my disk. Somehow the upgrade kept prompting for authentication to decrypt. Took me a long time to solve the problem. Basically need to decrypt the OS partition. Follow this:
Unlock or decrypt your FileVault-encrypted boot drive from the command line on macOS Mojave | Der Flounder (wordpress.com)
I'm quite sure I did not encrypt my disk. Somehow the upgrade kept prompting for authentication to decrypt. Took me a long time to solve the problem. Basically need to decrypt the OS partition. Follow this:
Unlock or decrypt your FileVault-encrypted boot drive from the command line on macOS Mojave | Der Flounder (wordpress.com)