After upgrading to Mac OS X Lion, I can't boot Windows anymore

Posted by J. Pablo Fernández on Super User See other posts from Super User or by J. Pablo Fernández
Published on 2011-07-30T09:16:16Z Indexed on 2012/09/21 21:43 UTC
Read the original article Hit count: 340

Filed under:

Windows

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osx

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upgrade

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osx-lion

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boot-camp

I upgraded to Mac OS X Lion and I can't run the installed Windows anymore. It seems the issue is that the Lion installation created extra partitions so the Windows partition has a different number one. It's disk0s4 instead of disk0s3 (if I recall correctly).

Searching online found several discussions about it but only one with a proposed solution, https://discussions.apple.com/thread/3199099, essentially:

bootrec.exe /FixMbr
bootrec.exe /FixBoot
bootrec.exe /RebuildBcd

which didn't work. bootrec.exe /FixBoot claims that no windows partition has been found.

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