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Lenovo x220 boot up problem

Steven Poon

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I have successfully install Mountain Lion 10.8.3 on my x220, at least all basic things are function... however... I can only boot using the USB drive (the installer), select my HDD than can boot, else it will display menu for me to choose which HDD to boot up, no error message. I tried install Chameleon but still same, I am using the GUID table during installing the OSX. The HDD only have single partition.


Please assist and help... I dont wish to carry the USB drive just for the sake of booting the laptop...

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