It’s more simple… After verifying the name of the EFI partition I'm interested in mounting in Finder, using the Terminal I just digit first
and so I give the command
Code:
sudo diskutil mount /dev/NAME_disk0sx_to_mount
where instead of “NAME_disk0sx_to_mount” you have to insert the EFI disk name as reported by “diskutil list” (for example: /dev/disk0s1)
Note: It is very important to use “sudo”!!! or the command “diskutil mount” doesn’t works.
The more experienced users can do better with OpenCore Configurator which brings up a button on the Menu bar from which to mount the EFI’s of the desired internal or external drives.