Do Not Enter Sign - Mac OS Sierra Restored to Mavericks - Lost 3TB Fusion Drive
All right, I have to admit, this is the first hard drive/major issue I have experienced in 11 years of owning a mac.
I have a late 2013 27" iMac. Everything was fine until two weeks ago when I came down and it was powered off. I thought that was weird because I left it on and we never lost power. I turned it on and I had the "do not enter" sign appear. I have searched high and low and tried various things. At first I did the command + r trick and tried selecting a time machine backup - luckily I have many backups available to choose from but it failed. I was on the most current version 10.12.5.
So through trying various things, finally this evening I was able to restore back to Mavericks. Of course it formatted things and I have no files, but I now have no 3TB fusion drive access either. It seems as if I only have about 120GB worth of drive.
Please advise.... I have no idea where to go from here. Thank you kindly.
Jeff
iMac (27-inch, Late 2013), macOS Sierra (10.12.5)