on the second screenshot I tried what you said doesn't work on the first. Screenshot you cannot click to diskRight-click Fusion Drive in Disk Utility (your second screenshot) and click 'Unlock'. Then enter your user password.
From there it'll be formattable.
on the second screenshot I tried what you said doesn't work on the first. Screenshot you cannot click to disk
Yes I can highlight it but when you're right click nothing happens.You can't even highlight Fusion Drive? Or right-click it?
Yes I can highlight it but when you're right click nothing happens.
[doublepost=1452002161,1452002093][/doublepost]You can see erase it's not option not sure what to do next.Please can you photograph what you see when you have it highlighted? Might just be a case of pressing 'Erase' to create a new partition, and then OS X can be installed on that. It doesn't look like the HDD has a volume assigned to it at the moment.
[doublepost=1452002161,1452002093][/doublepost]You can see erase it's not option not sure what to do next.
I'm not sure how you did this, and I don't know how to get your data back, but I do know how to fix this so you can resinstall the OS. I am assuming this was a Fusion drive from the factory and not home rolled?I was formatting my mac but something went wrong but fortunately I don't have a back up anyhow how do I fix this
diskutil cs delete "Fusion Drive"
You can try Data Recovery software such as Data Rescue, normally such software has good changes of recovering data but broken Fusion Drive much is more challenging and it might not work.
I managed to get it fixed appreciate your help thanks was weird the way fix it every time I click Hard drive partition and nothing happens even aid for some reason when I rebooted and I clicked partition this time workedHmm very odd. And definitely nothing when you right-click? Have you tried holding Ctrl and then single-clicking with the left mouse button? Does that bring up a menu?
If not, can you try the 'Partition' tab to see if there's the option to make one partition/volume as that may do the trick?
I have not read anything either way, but like you, I'm thinking recovering data from a borked Fusion drive is gong to be rough. All the data is stored inside a core storage logical volume that essentially now does not exist.