When booting I see some error on startup which I never get to read entirely because it goes away really quick. I do get to read something that says "couldn't get uefi db list".
My laptop does boot after displaying this error and all things seem to be working fine.
I do get the same error when powering off, and when logging off.
Oh, I'm running Deepin on a macbook pro of 2015, so no secure boot