I run an update today on my Mac and it updated GRUB. I select it to leave it and not update it however when I reboot, rEFIt didn't appear and went straight to GRUB. I can boot into ubuntu but not into OS X.
When I shutdown and then turn the power back on while holding the OPTION key it does nothing and goes straight to the GRUB menu. I really need to get back to my OS X partition so any help would be greatly appreciated.