I am currently interested in installing ubuntu on my Macbook Pro. I wish to know if it is safe to install Ubuntu as a full replacement of Mac OS X or if I should install with dual-boot first. This concern is mostly because of an apparent incompatibility between Ubuntu and Apple's custom EFI implementation, which by my understanding can "brick" my laptop.
I also looked for guides on how to replace Mac OS X with Ubuntu but the ones I found are old, and the software that they use (namely reEFIt) does not seem to work well on OS X Yosemite. Can someone point me to more recent tutorials/guides?
Lastly, is Ubuntu 15.04 capable of scaling everything (excluding applications) well?
[Edit]: I followed the instructions on Ubuntu's website and created an bootable USB, and when 15.04 loaded, I could not get a Wi-Fi connection. Being the first available release of 15.04, should I wait a couple more days and try again or should I assume that Wi-Fi is not available out-of-the-box with VividVerdet?