Need help downgrading from ML to SL

miss.manson

macrumors 6502a
Original poster
Dec 12, 2011
764
30
Georgia
I've looked everywhere and cannot find any help on how to downgrade from Mountain Lion to Snow Leopard. I have the original install discs for Snow leopard and I have Time Machine back ups. How can I go about doing this? Thanks in advanced. :eek:
 
Nov 28, 2010
22,684
27
located
What exact Macs are you both talking about?
2012 Macs will not run Mac OS X 10.6 Snow Leopard, only 2011 Macs will be able to run Mac OS X 10.6 Snow Leopard (though the 2011 MBA might be a bit difficult due to a new TB chip in it).

example: [SUCCESS!]Late 2011 Macbook Pro with Snow Leopard

PS: I don't know about using TM backups from Mac OS X 10.7 Lion or OS X 10.8 Mountain Lion in Mac OS X 10.6 Snow Leopard, as I still run Mac OS X 10.6 Snow Leopard and don't use TM.
 

Windows Expat

macrumors member
Jun 11, 2011
67
2
Los Angeles, CA
What exact Macs are you both talking about?
I can't speak for the OP, but both of my machines are 2011 Macs (iMac and MBP to be exact).

But yeah, I seem to recall reading that post-Lion TM backups aren't usable in SL. I know I can roll back the OS with a fresh install, but it's not worth it if I have to reinstall all my software and migrate tons of data.
 

miss.manson

macrumors 6502a
Original poster
Dec 12, 2011
764
30
Georgia
What exact Macs are you both talking about?
2012 Macs will not run Mac OS X 10.6 Snow Leopard, only 2011 Macs will be able to run Mac OS X 10.6 Snow Leopard (though the 2011 MBA might be a bit difficult due to a new TB chip in it).

example: [SUCCESS!]Late 2011 Macbook Pro with Snow Leopard

PS: I don't know about using TM backups from Mac OS X 10.7 Lion or OS X 10.8 Mountain Lion in Mac OS X 10.6 Snow Leopard, as I still run Mac OS X 10.6 Snow Leopard and don't use TM.
I have a mid 2009 MacBook white, and I used time machine to go back to SL