$ -> Normal user mode$! -> Root user modeSetup the root password for admin access for other tasks
$ sudo su
$! passwd
If you wish to re-map the keys of the macbook, run the following
$! echo 'options hid-apple swap_fn_leftctrl=1' > /etc/modprobe.d/keyboard.conf
$! dracut -f # will get stuck for a bit, let it work everything out
Edit GRUB to give you a timeout of at least 5 seconds
$! vim /etc/default/grub
GRUB_TIMEOUT to be around 5update-grub command$! update-grub