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grub2 with dual boot Ubuntu 12.04 + OS X 10.8


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#1
rumpumpel1

rumpumpel1

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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 ?

#2
HUSABER

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Grub bootloader never boot your OSX
Need to use Chameleon on OSX HDD for Boot Linux(reverse option will-Sory) :wallbash:

#3
rumpumpel1

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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.

#4
HUSABER

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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 :thumbsup_anim:

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