I downloaded the iso and imaged it to a USB with rosa image writer, and, after that didn't work, etcher, which also didn't work. It boots to where I choose a boot os. Selecting either of the options sometimes displays a few lines and then a blank screen. It won't boot on my 2010 iMac (the computer I'm trying to install it on), but it will boot on my custom build windows pc. Any idea how I could fix this?