rumpumpel1 Posted February 12, 2013 Share Posted February 12, 2013 I have a primary Ubuntu disk, which has a MBR, where the grub2 bootloader resides. On another disk I have a OS X 10.8 installation. The only way to boot into OS X is to choose the bootdisk with F12 from the BIOS menu. I would like to start OS X from the grub bootmenu. There are already two generated entries for 32bit and 64 bit, but neither of them works. Choosing one of these entries ends with a black screen. The OS X disk shows the following partitions: Partition Table: gpt Number Start End Size File system Name Flags 1 20.5kB 210MB 210MB fat32 EFI System Partition boot 2 210MB 400GB 400GB hfs+ Mountain Lion Can anyone tell me what exactly I have to put into /etc/grub.d/40_custom in order to get a working entry in my grubmenu for OS X ? Link to comment Share on other sites More sharing options...
HUSABER Posted February 12, 2013 Share Posted February 12, 2013 Grub bootloader never boot your OSX Need to use Chameleon on OSX HDD for Boot Linux(reverse option will-Sory) Link to comment Share on other sites More sharing options...
rumpumpel1 Posted February 13, 2013 Author Share Posted February 13, 2013 booting OS X shows me a boot-screen with three icons: OS X, Windows and Linux. Starting OS X works. Hitting on the Linux icon starts Windows and hitting on the Windows icon crashes. Link to comment Share on other sites More sharing options...
HUSABER Posted February 13, 2013 Share Posted February 13, 2013 Your Chameleon version is?Or you use Chimera? try this Bootloader,work like charm with every version OSX-10.6xxx-10.7xxxx-10.8xxxx I use perfectly Tripple boot from him Chameleon RC5 752 Lion+Snow.pkg.zip Link to comment Share on other sites More sharing options...
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