Upgraded to Big Sur and now there are two MacOS Drives mounted on startup

manuel296 wrote:

Also, I did NOT run any Beta versions of Big Sur. I only ran a Beta version of Xcode 12.2 before it was available on the App Store.

All volumes share the space with the Container, You should be able to safely remove the extra macOS as shown here:

Notice the point is not / or /System/...

You can use the +/-

please report back your success or failure

manuel296 wrote:

I upgraded to Big Sur from a recently fresh installation of Catalina and everything went smoothly and there appears to be no issues.

BUT, not upon startup, I see two(2) "MacOS" drives mounted on my desktop. I think one may be recovery? I have no idea why and this is very annoying. I have used MacOS from since Mountain Lion and this has never happened before. Please see screenshot for details.

You do not say what exact Mac is this?

Is this the factory SSD or did you user upgrade at some point with a third party SSD?

Did you run a Beta version of the macOS before the final release?

With Big Sur you expect to see a layout similar to:

 Big Sur always boots from a snapshot , a APFS snapshot.

updating to a beta can end up added a new snapshot without deleting the old snapshot.

manuel296 wrote:

That did the trick and successfully rebooted. I had suspected that was the solution well but needed the confirmation.

Manny

Good computing manuel296 !