imac – Fusion Drive is cut up and never obtainable for repartitioning


I am utilizing an iMac 5k Retina 2014 (previous, I do know) with OSX Yosemite put in. For some purpose Bootcamp has by no means labored with my USB drives, so I attempted manually putting in Home windows 10.

I partitioned the inner drive in Disk Utility, put all the required recordsdata on my USB, and booted into Home windows. I went via the set up course of and it requested what drive I wished to put in on, so I chosen the brand new partition I simply made, deleted it, clicked new then format, and went on with putting in.

The set up failed and once I checked Disk Utility once more, the Fusion Drive is just exhibiting 1.67TB of house against the total 3TB. There is a smaller disk picture that I assume Home windows created, together with the remaining 1.33TB of free house that I am unable to restore to the Fusion Drive.

I’ve tried utilizing Terminal instructions however cannot for my life work out what to place in as a result of my diskutil listing is so lengthy. Any assist could be nice.