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durner

macrumors newbie
Original poster
Hi,

I've upgraded to Mavericks (Developer Preview) and would now like to set up a second partition with Mountain Lion. I've got the installer from the AppStore and created the partition using Disk Utility. However, when I try to start the installer it prompts me that "OS X 10.8 can't be installed on this computer".
Any ideas how to get it to install on the second partition?

Thanks in advance
 
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