I have been having some issues installing Bootcamp on my new iMac. I migrated from a mid 2011 iMac to a 2012 model with a 1TB Fusion drive. My old data was migrated across via Time Machine. When I went to install bootcamp I got an error message that required me to reinstall OSX (2.5 hours to download OSX*) and reformat the hdd. This error came up when bootcamp was about to partition the HDD. I am now sitting in front of my machine and it has been partitioning from about 1 hour. Am I right in thinking that this shouldn't take this long? *I also had to download OSX twice on my second Mac which I have given to my wife to use. I reinstalled OSX but because I had not erased the HDD I had to go through the whole process a second time including downloading from scratch again.