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Can't boot OSX after Ubuntu Installed


KrakenChaos
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I made triple boot on my Lenovo T410. I installed OSes in this order on a single harddisk

- boot snow leopard with ModCD (tried [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url], but can't boot after installed)

- partitioned everything from snow leopard installer

- installed snow leopard to 2nd partition (1st is EFI)

- Able to boot Mac with Chameleon (installed along with mac from ModCD)

- Installed Windows 7

- Chameleon is gone now

- Windows itself can't boot either

- Installed Ubuntu

- Update everything

- Installed gptsync

- synced MBR with GPT

- Now can boot Ubuntu and Windows from Grub

 

GRUB display this menu

- Ubuntu

- Ubuntu safemode

- Memtest

- Mac OS X 32bit

- Mac OS X 64bit

- Windows 7 (loader)

 

But I can't boot from Mac. A blank screen is displayed and restarted.

 

Help? :( Any kind soul out there?

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Hi!

 

Since you say you've installed Ubuntu I assume you have GRUB2 as default bootmanager.

 

I've found this tutorial, maybe it can help you to check everything is fine in the grub config:

 

 

 

 

http://maketecheasier.com/create-a-mac-ent...rub2/2010/02/12

 

 

 

 

One hint: make a backup of any GRUB files you're about to edit!! This way if anything goes wrong you can restore them :)

 

 

 

 

Salutes!

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Hi!

 

Since you say you've installed Ubuntu I assume you have GRUB2 as default bootmanager.

 

I've found this tutorial, maybe it can help you to check everything is fine in the grub config:

 

 

 

 

http://maketecheasier.com/create-a-mac-ent...rub2/2010/02/12

 

 

 

 

One hint: make a backup of any GRUB files you're about to edit!! This way if anything goes wrong you can restore them :D

 

 

 

 

Salutes!

 

Thank you very much. I will try it and let you know how it turns out.

 

Cheers! :D

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You should install OS in the following order :

1 windows first, as it will refuse to install or erase other boot loader...

2 OSX + chameleon or other like

3 Ubuntun, but pay attention at the end of the installation wizard to setup grub to install on /dev/sdax (x is the partition number where linux is installed) instead of /dev/sda (the MBR !).

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