I couldn't find a video here on Youtube for how to do this, so I figured I'd create my own. Comment if you have any questions.
Terminal commands (copy and paste):
mkdir /Volumes/efi *now press enter*
sudo mount -t msdos /dev/disk0s1 /Volumes/efi *now press enter*
Specs: OS X El Capitan 10.11 on a mid-2012 Macbook Pro 2.9 GHz Intel Core i7
*EDIT* A commenter below suggested that adding 'sudo' to the first line to prevent permission errors, so if you get an error using my code above, try these lines of code:
sudo mkdir /Volumes/efi
sudo mount -t msdos /dev/disk0s1 /Volumes/efi
Ещё видео!