I erased my MacBook Air hard drive - which came with Yosemite OS X - because I wanted to roll back to Mountain Lion (OS X 10.8), since Yosemite was giving me problems with my files from the previous MacBook Pro.
I deleted the drive using Disk Utility. While partitioning, I forgot to make a GUID partition table. I tried installing Mac OS X on an USB-stick. It's not showing my drive, but just my USB Mac OS X installer. When I click on it, it shows the stop sign.
How can install Mac OS X without using the Internet Recovery for Yosemite