I am dual booting mac OS X with Ubuntu 64-bit and using the alternative install, when I got to the Grub boot loader I acidently selected the wrong partition to install, I installed the GRUB on the MAC OS X partition rather than the partition that Ubuntu is installed, needless to say this has caused some catastrophic issues, meaning Ubuntu won't load and goes straight to Boot Rescue.
Is there a way to move the GRUB from one partition to another whilst being in OS X?