Unable to boot OS X after installing Ubuntu 12.04

Posted by A G on Ask Ubuntu See other posts from Ask Ubuntu or by A G
Published on 2012-06-07T11:59:24Z Indexed on 2012/06/08 4:46 UTC
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Filed under:

grub2

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dual-boot

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macosx

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refit

I installed Ubuntu 12.04 on my MB (aluminium late 2008). After installing Ubuntu I am unable to boot into OS X.

Sequence of events:

Install reFit on OS X
Install Ubuntu on a partitioned drive. I also installed grub.

Now when I boot my MB only the grub menu shows up. When I select OS X under grub I see a black screen for a while and the machine restarts (when selecting OS X 64 bit) or it hangs indefinitely(OS X 32 bit). Could you please help?

Link to output of boot info script. http://paste.ubuntu.com/1028017/

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