Originally Posted by dexum175
Wait so I need a new drive?
Also I have usb superdrive for my rMBP can I use that and share?
Yes, afaik this should not be a problem, you can share the DVD/CD in the sharing Preference pane.
Now, I never started up a Mac to look for a shared DVD/CD, I think you can do so by holding the Option key on the iMac while starting up, it should have a network option to start from the DVD, this is slow.
Originally Posted by simsaladimbamba
Yes, you can use that and share or try to connect it directly to the iMac or use it to clone the DVD via CarbonCopyCloner (version 3.4.7 is still free
) to an 8 GB USB flash storage thumb drive and use that USB flash storage thumb drive to install Mac OS X 10.6 Snow Leopard
This is even a better and much faster idea.