Each time I try to download and Install Big Sur, I get the message "update failed, unknown error." I am now operating on the most recent update of Catalina on a 2019 Macbook Pro
[Re-Titled by Moderator]
MacBook Pro 13″, macOS 10.14
Hi there bearister2746,
We understand that you are getting an error message when you try to download and install macOS Big Sur. We’d be glad to assist.
If you are still experiencing this issue, go ahead and disconnect any external hard drives, audio devices, or other peripherals that are currently connected to your MacBook Pro and attempt to update the macOS again.
How to upgrade to macOS Big Sur
We hope that helps!
Big Sur "update failed due to unknown error"
