Mac OS X 10.10 Yosemite - How to fix rEFInd

Boot OS X 10.10 Yosemite

Install rEFInd with --esp flag:
./install.sh --esp

mkdir /Volumes/esp
sudo mount -t msdos /dev/disk0s1 /Volumes/esp

Then rename the "refind" folder to "boot" and the "refind_x64.efi" to "bootx64.efi".

Then copy the "driver_x64" folder of the rEFInd install folder into the /efi/boot/ folder and rename it to just "drivers".


After that: reboot
My boot delay is now ~5sec (instead of ~40sec).

To boot into Mac OS X 10.10 Yosemite hold down the "alt-key".



If grub has problems to find your Linux OS, boot into a Live-CD/USB:

   1.) Check "/etc/default/grub"
       Maybe you have to change "/dev/sda3" to "/dev/sda4" (or similar).

   2.) Check "/etc/fstab"
       Maybe you have to change "/dev/sda4" to "/dev/sda5" (or similar).


More information on this topic:
https://unix.stackexchange.com/questions/150670/install-refind-on-os-x-10-10-yosemite
https://twitter.com/juergenhecht/status/523493947113734144
http://forums.macrumors.com/showthread.php?t=1740614