gdscei Posted June 11, 2010 Share Posted June 11, 2010 Hello, I am trying to install Snow Leopard, using these instructions: -Download/burn EmpireEFI v1.08_i5 -Download/Burn retail mac osx snow leopard -insert empireefi disc, eject when loaded and insert sl disc, press f5 and enter. Then, when i want (of course) to partition my partition to Mac OSX Journaled (Extended), It doesn't do it's job, it says something in the line of "cannot modify partition map". What do I have to do? Is there an alternative method or should i change something in the BIOS...? Specs: Intel Core i5-750 Gigabyte P55M-UD2 Samsung SpinPoint F3 Desktop Class HD502HJ (500GB, devided into 3 primary partitions: windows, system recovery, and mac, and one logical(extended) partition, for games.) ASUS EAH5770 1GB GDDR5 I have AHCI mode enabled, and use SATA3 HDD & SATA3 DVD Drive. Link to comment https://www.insanelymac.com/forum/topic/220940-cannot-modify-partition-map/ Share on other sites More sharing options...
Beerkex'd Posted June 11, 2010 Share Posted June 11, 2010 Use a separate hard drive for OS X and format it with GUID partition map. Anything else is a pain in the ass. If that's not an option, look for help/post here: http://www.insanelymac.com/forum/index.php?showforum=104 Link to comment https://www.insanelymac.com/forum/topic/220940-cannot-modify-partition-map/#findComment-1486949 Share on other sites More sharing options...
gdscei Posted June 12, 2010 Author Share Posted June 12, 2010 Use a separate hard drive for OS X and format it with GUID partition map. Anything else is a pain in the ass. If that's not an option, look for help/post here: http://www.insanelymac.com/forum/index.php?showforum=104 I just formatted my hard drive with GUID partition map, i didn't have so important files on it. I got a dual boot now. Link to comment https://www.insanelymac.com/forum/topic/220940-cannot-modify-partition-map/#findComment-1487201 Share on other sites More sharing options...
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