How to Boot to the Recovery Mode w/o a Menu Option
1. If you have Grub 2 set to boot without displaying the menu at all, hold the SHIFT key down until the menu displays. (In Grub it was the ESC key.)
2. Press any key once the menu is displayed to 'freeze' it. Then arrow to the kernel you want to boot.
3. Press "e"
4. Scroll to the end of the "linux /boot/vmlinuz...." line. If displayed, remove "quiet" and/or "splash". Add the word "single" to the end of the line.
5. Press CTRL-X to boot to the Recovery menu.