I have been trying to install Ubuntu 14.04 on my MacBook Pro 5,5. I have been following this tutorial to make it work :: <http://www.makeuseof.com/tag/install-linux-macbook-pro/>

There is a section of EFI boot fix int blog just mentioned. It asks me after the installation and before restarting run two commands 

1) `sudo apt-get install efibootmgr`

2) `sudo efibootmgr`

But when I run the second command on the terminal I get an error saying ::

```
Fatal: Couldn't open either sysfs or procfs directories for accessing EFI variables.
Try 'modprobe efivars' as root.

```

I have tried searching but nothing makes sense to me, since I am very new to running commands on terminal (have always been working on windows).

I want to dual boot Mac OS X and Ubuntu on my MacBook Pro.

I have tried ignoring this step, and then my Ubuntu doesn't boot, it starts the Mac OS. Thanks for any help! :)