Missing EFI partition ?

[rotarypot]

Hi everyone

i have managed to install Sierra, got my GPU working, no audio yet..

however, the most pressing issue is being unable to boot without using the usb i made with Unibeast.
it seems i dont have an EFI partition on my HD, how exactly did that happen?

after installing Sierra i did the multibeast steps, no problems there, until i tried to reboot, got the missing operating system screen, if i plug in the usb i get to the clover screen and only then can i boot the system.

using terminal 'diskutil list' i can see that the Sierra disk does not have an EFI partition.

do i have to start over?
what did i miss ?

EDIT :
mobo - h97m-d3h
i7 4790
gtx970

EDIT 2 :

Figured out the problem,
When i formated the drive i chose Master Boot Record instead of Guid Partition Map. Doh!
All is fixed now

 

[sabotage3d]

I have the same problem. I installed Windows 10 before Sierra and I didn't have unallocated space or a way to resize the other partitions. I am trying to create one manually.

 

[itwas]

If you formated the drive by using disk utility. the EFI partition should be created by disk utility.