If you’re using rEFInd on a Mac (for example, if you’re dual-booting or triple-booting with a Linux OS), you may have found rEFInd worked fine with Yosemite but broke with El Capitan.
This guide worked for me to get it going again:
Installing rEFInd on Mac OS X El Capitan.
One response to “Installing rEFInd on Mac OS X El Capitan”
Actually, you can just run the regular rEFInd installer. Once System Integrity is temporarily disable, you don’t need to run all those extra commands (blessing the boot loader, for example).