Booting 10.7.5 Bup from 10.8.3 computer

[JoeHansen]

Dave is probably right (he usually is!), but I'd give it a try anyway. I have a MacBook Pro, bought from Apple on Dec 1, 2011, that came with Lion pre-installed (I've since upgraded it to Mtn Lion).

The MacBook readily boots to a Snow Leopard backup made with SuperDuper! on another computer. It easily runs everything on the backup, including a few legacy apps I have that need Rosetta.

If, after the Snow Leopard desktop first comes up, you get a message saying "Where is System Events?", followed by a whole page of choices, just go to the bottom of the page and click on the "Cancel Button". (The first time this happened to me, I researched the issue and came to the conclusion that this would work for me, and it has. I don't remember the details.)