Scenario

Q: Disk Utility errors trying to Partition

I'm trying to create a partition on my iMac's 3TB Fusion Drive, but Disk Utility keeps issuing the error:

 

"The provided Core Storage logical volume has an incorrect size. You should run whole-disk repair.

Operation failed..."


So I run First Aid and everything's OK. I get the same error when I try again. I also tried running fsck from single-user mode. Again, with no avail.

 

I had previously had a second partition, and had recently deleted it. Not sure if that matters. But at least I know that partitioning had worked before on this drive. So it's something that Disk Utility messed up.

 

What's up with Disk Utility's inability to repair something that it breaks?

iPhone 6, iOS 8

Posted on Sep 12, 2016 2:01 PM