I found these instructions helpful for getting Debian booting on a Macbook, without having to use refit&#x2F;refind: <a href="https:&#x2F;&#x2F;gist.github.com&#x2F;andrewlkho&#x2F;23b5b5bcf853b3473421" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;andrewlkho&#x2F;23b5b5bcf853b3473421</a><p>Wifi doesn&#x27;t work out of the box, but it&#x27;s just a matter of putting the packages on a USB stick, and installing them.<p>I&#x27;m not sure rMBP users are the target audience for Ubuntu.  Many people buy those machines in part due to the Apple ecosystem, not just for the nice hardware, so they wouldn&#x27;t switch regardless of how easy the installer is.