coolguy1 Posted September 6, 2009 Share Posted September 6, 2009 Hi Guys, I have trying to install Dual-boot setup of Windows 7 and OSX on Dell Latitude E6400 w/ nvidia 160M graphics I have created 3 partitions: 1- WIN7 - NTFS 2- OSX - UNFORMATTED Steps: diskpart create paritition primary id=af select partition 2 active 3- DATA - NTFS I have installed WIN7 on Partition-1, now I booted to Snow 10.6 DVD: Select DISKUtility -> Select OSX Partition- > click ERASE and selected 'Journaled' File system Now the OSX partition disk shows up in Install screen, but it shows following error: ' To Install on this Disk, Open DiskUtility and repartition this disk using "GUID partition Table" How to proceed now, so I can retain my Win7 Installation and install OSX on 2nd partition? I thought in previous OSX versions you can install OSX on MBR partitions too. Link to comment Share on other sites More sharing options...
kraml Posted September 6, 2009 Share Posted September 6, 2009 Since Windows could not boot from a GUID disk partition unless your system is running EFI instead of BIOS, you have to install SL on a MBR disk partition. You have 2 options. - Install to a dedicated GUID partitioned disk first, then clone it back to the MBR partition on your current Windows 7 disk. The GUID disk could be a external USB disk. Cloning is done by using restore function of Disk Utility. - Search for "Snow Leopard OSInstall.mpkg" and you will find a modified osinstall.mpkg file that you can use to replace the original file on the SL install DVD. It allows you to install on to a MBR disk, but I saw someone mentioned it will cause some problem to the installed system like screw up permission. I personally don't know whether it is true or not since I use option 1. Link to comment Share on other sites More sharing options...
srs5694 Posted September 7, 2009 Share Posted September 7, 2009 A third option is to use a hybrid MBR configuration. Personally, I prefer avoiding them if at all possible, but sometimes it's hard to avoid them. See my Web page on the subject for details. Link to comment Share on other sites More sharing options...
al_leb Posted November 23, 2009 Share Posted November 23, 2009 Snow Leopard without problems can be installed on MBR partition from restored on HDD/Flash DVD image after replacing only 2 files Link to comment Share on other sites More sharing options...
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