I want to boot Ubuntu 16.04 in an environment of Mac OX El Capitan.
I followed Rod's answer in Dual Boot Mac El Captain along with Ubuntu 14.04 , but I am still having a problem.
I disabled the SIP before installing refind. The disk is partitioned and formatted with FAT to install Ubuntu and I created a Ubuntu USB stick. rFInd loads before booting but the system (Ubuntu) does not load. I cannot give or test any sequence to install Ubuntu, only a black screen! What am I doing wrong?