Problem with the EFI system partition's file system.

I installed latest yosemite 10.10.2 update - did a verify disk on “WDC WD1001FALS-403AA0 Media” (internal HD on my iMac 21.5-inch, Mid 2011) and got
Problems were found with the partition map which might prevent booting
Error: The partition map needs to be repaired because there’s a problem with the EFI system partition’s file system.
However a verify disk on the volume partition gets a clean bill of health!
I haven't done a 'repair disk' yet. Thought I'd check if anybody else has same message first.
Cheers

I had issues where my MacPro 8-core would not boot after the 10.7.4 upgrade, but my MacBook Air 13" 2011 upgrade worked just fine.
I had to restore my MacPro HD from my TimeMachine back up. Apparently, the Softraid raid drivers that I use on my MacPro are not compatible yet with 10.7.4. See here for more info:
http://macperformanceguide.com/blog/2012/20120511_1-MacOSX-SoftRAID.html
I contacted Softraid and they are already aware of the issues and are working with Apple for a fix.
Cheers.
Bud

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