I'm trying to quadboot Lion, W7, Ubuntu 11.10 and Mint 12. I have all 4 Os's on my laptop (which is a late 2007 MacBook) and they all work. My problem is that i can't get them all to run off of one bootloader as they all have their own. To get to one OS i have to go through 3 sets of bootloaders

Ubuntu: Grub2
Mint: Grub2
Mac: Runs on its own accord and EFI
Windows: After getting through Ubuntu and mints bootloader i get to the windows bootloader

On top of that i have rEFIt Trying to run them all aswell

I suppose im sort of trying to get each boot loader to boot its own seperate OS Or have it running all off of one

I'm not really used to forums, so if you want me to clarify or explain something just ask cause im not really sure what to put... (but i warn you i'm a little bit of a noob at Tech)

Any help is much appreciated

Haven't got a clue about the mac or its bootloader.
With either Ubuntu or Mint, you should be able to open a terminal and type: sudo update-grub
It should find the Mint and windows installation. The next time you boot Ubuntu or Mint, you should see all three options on the boot menu and be able to boot directly into any of them.

Upon boot into the EFI partition manager,
try running its Partition Inspector/Manager update.
Whatever partitions it records, you should be able to bootup.
Thus either Mac or Ubuntu can be booted on my Airbook.
Partitions on my Airbook are shown below.

marvs
============

$ sudo parted -l /dev/sda print
------
Model: ATA APPLE SSD TS128C (scsi)
Disk /dev/sda: 121GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
1 20.5kB 210MB 210MB fat32 EFI system partition boot
2 210MB 80.2GB 80.0GB hfs+ Customer, running under Mac Mountain Lion
3 80.2GB 80.8GB 650MB hfs+ Recovery HD
5 80.8GB 117GB 36.3GB ext4
6 117GB 121GB 4200MB linux-swap(v1)

The was previously a 1 MB
4 grub_bios
which may have been used during the Ubuntu install, but it seemed to be causing problems, which were relieved by its deletion.