Please help! This is utterly frustrating that Yosemite is affecting everyones partitions. Looking to Loner T for help as you seem to be so helpful for everyone else. I am not super familiar with terminal commands and my way around the brain of a mac. Any help would be amazing.
iMac, OS X Yosemite (10.10)
Go to Applications -> Utilities -> Terminal and launch it.
In the terminal window, triple click each of the following command lines individually, Copy (using Command+C) and Paste (Command+V) into the terminal window. Select and Copy/Paste the output into a reply. Enter your password when prompted. Please remove any personal information that you do not want to share on a public form before you click on the Reply button.
diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk0
sudo fdisk /dev/disk0
Yosemite deleted windows 8 partition
