Is it true that you cant install Snow Leopard on current Macs?

LeandrodaFL

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Original poster
Apr 6, 2011
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Is it true that you cant install Snow Leopard on current Macs, like the latest sandy bridge MacMini?
 

Schtumple

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Jun 13, 2007
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benkadams.com
If the Mac was released after Lion was released, SL won't support the hardware, as why would it need to, the machines ships with the latest OS.

If the machine was released prior to Lion but now ships with Lion, SL will support the hardware, but you'd have to buy the correct version numbered disc in order to install it-

For example, my MBP shipped with SL, I have a SL retail disc from when SL was first released (bought a good 6-8 months before my MBP came out), the disc will not boot on my MBP, because the version is too early for my machine and there's no support on there to let it boot.
 

LeandrodaFL

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Original poster
Apr 6, 2011
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This is crazy, you can install Windows XP and Vista on a current Mac, but not Snow Leopard??????
 

Schtumple

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Jun 13, 2007
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Why is it crazy? It's like having a PC ship with 7, but you revert to Vista, it doesn't make sense to downgrade if you've already got the latest software... Do you actually even NEED Snow Leopard, or is this just one of those threads without any point? Cause if so I've said all I can be bothered to say.
 

zigzagg321

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Oct 7, 2011
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Why is it crazy? It's like having a PC ship with 7, but you revert to Vista, it doesn't make sense to downgrade if you've already got the latest software... Do you actually even NEED Snow Leopard, or is this just one of those threads without any point? Cause if so I've said all I can be bothered to say.
My current generation iMac shipped with SL installed, and of course came with the SL DVDs. I upgraded to Lion using the app store and the 'up to date' program, so can I assume that the SL DVDs will work on my machine if I want to revert back to SL?
 

GGJstudios

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May 16, 2008
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Don't install a version of Mac OS X earlier than what came with your Mac

Don't install a version of Mac OS X earlier than what came with your Mac
You should not install a version of Mac OS X earlier than that which came with your Mac.

If you install an earlier (previous) version of the Mac OS X than what was included, your computer may exhibit unexpected behavior such as:

  • The trackpad or mouse may not respond properly
  • The computer may stop responding
  • Sleep/wake issues may occur
  • The display image may appear to "shrink" with black bars around it, may appear tinted, or have other issues
  • Loss of built-in audio
  • Loss of Bluetooth or AirPort functionality
  • May not start up past the Apple logo
 

Schtumple

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Jun 13, 2007
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My current generation iMac shipped with SL installed, and of course came with the SL DVDs. I upgraded to Lion using the app store and the 'up to date' program, so can I assume that the SL DVDs will work on my machine if I want to revert back to SL?
Yes that will work just fine, although I think you'll need to format the hard drive in order to do so, using Time Machine to backup your stuff then Migration Assistant to transfer it all over, there's no easy downgrade option tbh, they're all tedious.

Of note OP, "May not start up past the Apple logo" is the most common problem I've come across. Good luck in your crusade to downgrade (awesome rhyme there), but I really don't understand why you you want to when there's no real need to downgrade.
 
Last edited:
Nov 28, 2010
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but I really don't understand why you need to there's a need to downgrade.
For many users Lion has been not a good update and took some things away, that made life easier. For me it is Spaces and Exposé, they have now been dumbed down to Mission Control.
As I use 12 Spaces, MC is not for me, maybe if I can go down to four Spaces, but even then, one little row with all Spaces is ***** compared to three rows of Spaces on the whole screen.
If I ever need a new computer, which will be in two to three years, I will be seriously hampered, as my workflow relies on Spaces. I probably will save up and get an early 2011 MBP or iMac via the refurbished route this year.
 

LeandrodaFL

macrumors 6502a
Original poster
Apr 6, 2011
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I really don't understand why you you want to when there's no real need to downgrade.
I happen to think Lion is a downgrade from Snow Leopard, they removed Expose and Spaces and changed many things.

It is crazy that you can install the current Windows version (7) and a 2006 version (Vista) and a 2001 version of Windows (XP) but you cannot install any older version of OS X on a Macintosh.. it doesnt make sense at all...

Its like a PS3 being able to play super nintendo but not PS2


If you love Lion, thats great, Im sure it a great OS, but I simply would like to be able to upgrade hardware and keep my favorite OS.
 

astrorider

macrumors 6502a
Sep 25, 2008
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I happen to think Lion is a downgrade from Snow Leopard, they removed Expose and Spaces and changed many things.

It is crazy that you can install the current Windows version (7) and a 2006 version (Vista) and a 2001 version of Windows (XP) but you cannot install any older version of OS X on a Macintosh.. it doesnt make sense at all...

Its like a PS3 being able to play super nintendo but not PS2


If you love Lion, thats great, Im sure it a great OS, but I simply would like to be able to upgrade hardware and keep my favorite OS.
BTW, Bootcamp in Lion only supports installing Windows 7. You may be able to workaround this by installing drivers from the Snow Leopard days depending on your machine, but that's kind of irrelevant to this discussion. Only Windows 7 is supported on Lion, not Vista or XP.
 

LeandrodaFL

macrumors 6502a
Original poster
Apr 6, 2011
965
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BTW, Bootcamp in Lion only supports installing Windows 7. You may be able to workaround this by installing drivers from the Snow Leopard days depending on your machine, but that's kind of irrelevant to this discussion. Only Windows 7 is supported on Lion, not Vista or XP.
Oh, did not know that, I tought they kepts vista and xp possibility, as all 3 versions are supported under snow leopard (as far as i know), sorry for the mistake
 
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