I recently tried to update my iMac OS to Yosemite as most people had already done it a while ago. it downloaded the package when rebooted to install it. It was stuck with error message.
It looks as if there was an issue with hard drive preventing installation. I was also unfortunate to revert the installation, hence end up loosing all my files as I decided to erase the disk and create new partition. Even after formatting the disk and using 'Reinstall OS X' from recovery mode; I am unable to complete.
The screen doesn't seem to do anything stuck at 'Downloading additional components, it will automatically restart' I tried leaving it for few hours but no result.
Would someone please share your experience?