cs.oyen Posted November 26, 2009 Share Posted November 26, 2009 Hello, I install Windows 7 and create a partition for Mac OS. Now, in Mac OS install i have formated the partition with Mac system file but i can't install. The installer don't let me go ahead because i don't have a GUID partition table. How can i resolve this without format the hard disk? Regards. Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/ Share on other sites More sharing options...
steve_wozniak Posted November 26, 2009 Share Posted November 26, 2009 it seems that you have a MBR instead of a GUID I almost had the same problem. My external hard drive had a GUID partition map scheme and a single NTFS partition. I wanted to shrink the NTFS partition to add a HFS partition by I had no succes. I resigned myself, I just formatted, that's it. Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/#findComment-1343207 Share on other sites More sharing options...
Poco Posted November 26, 2009 Share Posted November 26, 2009 Look into getting a modified OSInstall.pkg which will solve this issue. Prasys's blog has some info on that. iPoco Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/#findComment-1343416 Share on other sites More sharing options...
cs.oyen Posted November 29, 2009 Author Share Posted November 29, 2009 Look into getting a modified OSInstall.pkg which will solve this issue. Prasys's blog has some info on that. iPoco Hello, I've downloaded the OSInstall.pkg and i replace the original by the modified, so, i burn the DVD and try to install but it still requires a GUID partition map schem don't let me install at MBR. What i did wrong? Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/#findComment-1345254 Share on other sites More sharing options...
srs5694 Posted November 29, 2009 Share Posted November 29, 2009 Look into getting a modified OSInstall.pkg which will solve this issue. Prasys's blog has some info on that. There are two other options, as well: Install OS X to another drive (say, a spare old hard disk or a large USB flash drive) that uses a GUID Partition Table (GPT) layout, then copy the installation to your MBR disk using Carbon Copy Cloner or various other backup utilities. Use GPT fdisk to create a hybrid MBR configuration, in which the disk has both valid GPT and valid MBR partition definitions, so as to satisfy both Windows (which won't boot from GPT on BIOS-based systems) and OS X (which, as you've found, prefers not to install to MBR disks). Overall, I recommend either using a modified installer, as ipoco suggests, or doing the install-then-move dance. Hybrid MBRs are handy, but they're also delicate and potentially dangerous. Unfortunately, installing then moving is tedious and requires a spare drive, so if you can't get a modified installer to work, a hybrid MBR configuration may be the simplest way forward. Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/#findComment-1345278 Share on other sites More sharing options...
cs.oyen Posted November 29, 2009 Author Share Posted November 29, 2009 There are two other options, as well: Install OS X to another drive (say, a spare old hard disk or a large USB flash drive) that uses a GUID Partition Table (GPT) layout, then copy the installation to your MBR disk using Carbon Copy Cloner or various other backup utilities. Use GPT fdisk to create a hybrid MBR configuration, in which the disk has both valid GPT and valid MBR partition definitions, so as to satisfy both Windows (which won't boot from GPT on BIOS-based systems) and OS X (which, as you've found, prefers not to install to MBR disks). Overall, I recommend either using a modified installer, as ipoco suggests, or doing the install-then-move dance. Hybrid MBRs are handy, but they're also delicate and potentially dangerous. Unfortunately, installing then moving is tedious and requires a spare drive, so if you can't get a modified installer to work, a hybrid MBR configuration may be the simplest way forward. Thanks. But i get a modified installer and they still need a GUID. Not working at MBR. I don't know... Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/#findComment-1345307 Share on other sites More sharing options...
cs.oyen Posted November 29, 2009 Author Share Posted November 29, 2009 I need help ... i don't kwon what i did wrong! Please someone can help me? Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/#findComment-1345696 Share on other sites More sharing options...
dgeordgy21 Posted December 3, 2009 Share Posted December 3, 2009 I need help ... i don't kwon what i did wrong! Please someone can help me? OSInstall MBR MOD: SOURCE: http://osx86.sojugarden.com/downloads/ These two files are required for installation of OS X 10.6 on MBR partitioned disks. NOTE: Only install on OS X installation device (a usbstick for example). OSInstall.mpkg OSInstall.mpkg modified to enable installation on MBR partitioned disks. – Replace /System/Installation/Packages/OSInstall.mpkg with this file. OSInstall OSInstall framework modified to enable installation on MBR partitioned disks. – Replace /System/Library/PrivateFrameworks/Install.framework/Frameworks/OSInstall.framework/Versions/A/OSInstall with this file. Link to comment https://www.insanelymac.com/forum/topic/199644-install-mac-os-x-sl-in-a-windows-disk/#findComment-1350031 Share on other sites More sharing options...
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