Mount ESP Partitions
Open ESP Mounter Pro via the launcher and you can see its icon on the status bar.
Click the icon and choose an EFI partition to mount.
Open the terminal via the launcher.
diskutil list to locate your EFI partition and take a note of its identifier.
A disk identifier has a format like
/dev/diskXsY where X and Y are just integers.
diskutil mount /dev/diskXsY and press the Enter key.As you can see from the screen shot above, my EFI partition is identified as
/dev/disk0s1, so I need to type
diskutil mount /dev/disk0s1 to mount it.When you see
/dev/diskXsY mounted in the terminal, you can find the EFI partition in Path Finder.