Disk Utility Partition Options are Grayed Out
Heya!
I have a iMac from 2013 with a 1TB fusion drive (Mac OSX Mavericks). A couple of months ago, I created a 125GB partition for Windows 7 using Bootcamp but apart from that, I've always kept my drive intact. Now, however, I want to partition my drive into three instead of two to make room for a Linux Mint installation. Unfortunately however, I'm not making any progress apart beyond opening Disk Utility as all options in the partition screen are grayed out. Googling, I found no other solutions than to free up space but since I've got almost 500GB free I'm guessing that doesn't work for me (just deleted 400GB). I've included a picture of the situation. Does anybody know what to do now?
Kind regards,
Matthijs Rog
iMac, OS X Mavericks (10.9.4), One Bootcamp Partition