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Help needed on Mac Book pro boot issue.

2015-04-13 20:20:31 +0530: Starting repair tool:

2015-04-13 20:20:31 +0530: Checking prerequisites

2015-04-13 20:20:31 +0530: Checking the partition list

2015-04-13 20:20:31 +0530: Adjusting partition map to fit whole disk as required

2015-04-13 20:20:31 +0530: Checking for an EFI system partition

2015-04-13 20:20:31 +0530: Checking the EFI system partition’s size

2015-04-13 20:20:31 +0530: Setting the EFI system partition’s size

2015-04-13 20:20:31 +0530: Creating a new EFI system partition

2015-04-13 20:20:31 +0530: Problems were encountered during repair of the partition map

2015-04-13 20:20:31 +0530: Error: Couldn’t repair the partition map because a new EFI system partition couldn’t be created.2015-04-13 20:20:32 +0530:

2015-04-13 20:20:32 +0530: : Couldn’t repair the partition map because a new EFI system partition couldn’t be created.

2015-04-13 20:20:32 +0530:



On my macbook pro, was running on Yosemite and suddenly on starting the system I see "prohibited" sign. After trying a lot of combination of keys, I added external SSD and booted but it came up with Lion version.

MacBook Air, OS X Yosemite (10.10.2)

Posted on Apr 13, 2015 8:13 AM

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2 replies

Help needed on Mac Book pro boot issue.

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