How to make bootable images of triple-boot OS on Mac OS

Hi, guys I would like to know the best practices or at least method to do the following things i am working on.

I have installed triple-boot OS(windows 7, RHEL linux and Mac OS 10.6) on imac7 with refit tool. The goal i want to achieve is to make disk images of each of the partitions of the OS so that i can restore and install the images of them on other Mac machines.

I already made window 7 image through script i wrote with help of ntfsclone. I would like to know the way to create linux image and mac os.

will vanilla dd command like dd if=/dev/sda3 of=~/linux.img do the job? mac os partiton can be imaged through the build-in disk utility as far as i know

Will the above methods workable to create the bootable image? Do I need to merge them somehow and How? How to include EFI boot partition to make them bootable?

If you have related experiences or hints, please shed me a light. thanks for your helo

Leo

From serverfault leo

• Take a look at DeployStudio; I haven't tried this feature, but one of their example restore workflows splits the target disk in three partitions, restores a Mac OS X system (from a properly prepared .dmg image), a Windows system (IIRC from a WinClone image, not sure if it's compatible with ntfsclone), and a Linux system (from a .dd image). It's free, and supports both local and network restores. Setup can be a bit complex, so spend some time with the docs before plunging in.

  Robert Moir : Got to go with Deploy Studio. We use it in a college environment to support ~80 macs and it does support multi OS deployments and seems quite solid and reliable. Certainly a big improvement over netboot/netrestore which is what we were using beforehand.
  From Gordon Davisson