Where do you put OC with Big Sur? There’s no EFI volume

[rajovo]

I can boot BS without any issues with OC on flash drive but where do I put OC on the Big Sur drive? My Catalina drive has an EFI volume, BS does not. Do I just create it? Thanks!

 

[Shaneee]

It will do. Post a screenshot of diskutil list and I'll point it out for you.

 

[MadMax1998]

In Terminal, type

diskutil list

and look for the volume named "EFI" that sits on your Big Sur disk. Note the disk number next to the name. Then mount it:

sudo diskutil mount diskXsX

(where X is to be replaced by the proper digits)

Look in Finder; the EFI volume should be there now. Copy your EFI folder from the USB to there --> done.