Eyvind Posted July 14, 2009 Share Posted July 14, 2009 Okay... this is not very complicated, but i'll start at the beginning I got a new 1TB harddrive. Before this, i had a fully working osx 10.5.7/windows 7 dualboot with chameleon. That harddrive said kaput, so i bought the 1TB drive. Since its 1TB and i like experimenting, i decided to try to use the GPT partition. The ideal setup i wanted to create was: 1 EFI 200MB partition for boot, 2x15 gb partitions for Windows and Osx, 2x450 GB partitions for data drives for osx and windows. I also wanted for windows to be able to recognise the mac disks (macdrive 8 beta), and osx to see the windows disks. Quickly i learned these things: To be able to install windows on GPT, a GPT/MBR hybrid has to be created by OSX. Now this troubled me - it is said windows needs efi to be able to install on GPT. My first question is: IS THERE ANY WAY TO FORCE INSTALL WINDOWS 7 (X64) ON A GPT DISK, OR IS THERE ANY WAY TO INSTALL WINDOWS THROUGH CHAMELEON SO IT BELEIVES ITS ON EFI AND ALLOWS INSTALL ON A GPT? With a GPT/MBR hybrid, you are limited to 4 partitions, including the EFI partition. This is because GPT doesnt support extended partitions, and mbr only supports 4 primary partitions. To solve this i tried to move the efi partition to the end of the disk (so OSX can see it, but windows cant-its the 5th partition). The problem is that then OSX doenst automatically create the hybrid, and if you create it with gptsync, it still creates a tiny EFI Protective partition in the beginning (which counts as primary on mbr). The second question is: IS THERE ANY WAY TO STOP THE TINY EFI PROTECTIVE ENTRY BEING CREATED BY GPTSYNC AT THE BEGINNING OF THE DISK (EVEN IF THE EFI PARTITION IS PARTITION 5)? Link to comment Share on other sites More sharing options...
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