Stuck between Snow Leopard and Yosemite install-no escape!

[deckeda]

One thing I wasn't clear on, Randalls, the installer saved to a thumb drive is for later, should you need it. As you're already aware, you can just run the downloaded installer as-is from the computer.

Read that MacWorld article. You gotta save it to the thumb drive before you run the installer, or you won't have a downloaded installer to save. Capiche?