Partition problem with Fusion Drive

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viniciuscmac Author

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Partition problem with Fusion Drive

Heloo all,

I bought a new iMac 21.5, already with Haswell i5, and with a fusion drive 1TB.

The Bootcamp wasn't working, something about the partition was not right or found.

Anyway i tried to format the bootcamp partition myself for the NTFS format by using the Disk Utility.

So, after something, there is a partition Free Space with more than 300gb, and i can't install the windows because bootcamp says that i need one volume.

And i can't move the partition, i tried everything. If you could help me, would be great

thanks.

iMac, OS X Mavericks (10.9)

Posted on Nov 11, 2013 1:59 AM

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Answer 1

LowLuster

Level 6

12,105 points

Nov 11, 2013 2:08 AM in response to viniciuscmac

You need to make a Time Machine backup of your OS X install and then wipe out the fusion drive and recreate it using the all the space. No easy way to recombine that space back into the current fusion drive.

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Answer 2

viniciuscmac Author

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Nov 11, 2013 2:13 AM in response to LowLuster

Hi LowLuster,

I already did it, made a backup on an external drive, got a flash drive with mavericks, and installed again.

How exactly I wipe a fusion drive to one space ? I think I tried but not the right way.

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Answer 3

LowLuster

Level 6

12,105 points

Nov 11, 2013 2:27 AM in response to viniciuscmac

Google search for remove and recreate Fusion drive on a Mac computer. There are several tutorials on the net explaining how to do it. Or you could take your iMac to an Apple store and ask them to do it for you.

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Answer 4

viniciuscmac Author

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Nov 12, 2013 2:45 AM in response to LowLuster

Tried, nothing worked 😟

Spent 5 hours with apple care advanced support on the phone, but no sucess.

They sent my problem to the engineering team, i hope they can solve it, my computer has only 10 days

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Answer 5

LowLuster

Level 6

12,105 points

Nov 12, 2013 2:59 AM in response to viniciuscmac

You tried what? You spent hours on the phone with Apple trying to do what?

If those hours were spent trying to put back that partition into a Fusion drive that can not be done. You have to wipe out the fusion drive, whcih will wipe out all data on the drives, and then Rebuild it and reinstall OS X on it.

At this time not even Apple has a way to repair a Fusion drive system that has had part of the space removed from the fusion.

If you use the Boot Camp Assistant to make a Windows partition, which splits off part of the rotating HDD space for installing Windows, you must use Boot Camp again to recombine it. If you don't you end up with a Fusion drive and a second partition that can not be put back into the Fusion drive system without completely remove the fusion drive and recreatiing it.

Here is a google search page with links to many tutorials on how to break one up and then recreate it.

https://www.google.com/search?q=Remove+and+recreate+a+fusion+drive&oq=Remove+and +recreate+a+fusion+drive&aqs=chrome..69i57.8810j0j1&sourceid=chrome&ie=UTF-8

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Answer 6

LowLuster

Level 6

12,105 points

Nov 12, 2013 3:19 AM in response to viniciuscmac

How to disable, break apart, a Fusion drive.

http://www.macworld.com/article/2015664/how-to-split-up-a-fusion-drive.html

How to Create 2 drrives into a Fusion drive.

http://www.macworld.com/article/2014011/how-to-make-your-own-fusion-drive.html

Good Luck to you.

Or Take your Mac to an Apple store and ask them to do this for you. Don't call Apple, take it to a store. If the store you take it to, if you choose to take it to a store, for some reason can't do it take it to another or call a Mac computer savy friend to help you out.

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