Invalid Disk Label cksum mismatch

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Level 1

79 points

Invalid Disk Label cksum mismatch

Hello.

I'm on a MacBook Air - 2014, which came with Mavericks 10.9.4.

Currently upgraded to Yosemite 10.10.

Question: After upgrading I'm aware that my Recovery Partition disappeared! Also, when trying to use disk utility I get several information, BUT, one in particular (RED) says the following:

Invalid Disk Label @ 119806283776 cksum mismatch

Can anyone tell me exactly what this means? Also, I was using a USB with Mavericks when I used disk utility.

Also, there's a few shortcut that don't work when I boot my Mac: Reste PRAM, Safe Mode and specially Dick Diagnostics, don't work!

Hardware problem or software problem?

Thank you.

MacBook Air, OS X Yosemite (10.10)

Posted on Nov 14, 2014 11:07 AM

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Answer 1

JMPC Author

Level 1

79 points

Nov 14, 2014 4:02 PM in response to JMPC

Hi again.

I solved my own problem and here's how I did it:

Simply accessed Recovery HDD and re-installed OS X Yosemite again.

Solved! Also, I used Disc Utility to correct any permission problem and to check on my SDD, just in case.

I should warn that, this didn't solved my problem with the shortcuts not working when I boot my Mac.

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Answer 2

Mar 22, 2015 1:24 AM in response to JMPC

To boot on the Reovery partition, type at boot time: cmd-shift-r

This is just like AirDrop: you now must have Bluetooth enabled (and the WiFi) to run AirDrop.

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Answer 3

JECSB

Level 1

4 points

Dec 27, 2016 4:54 AM in response to JMPC

It does not work, have a fusion drive.

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