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Install Snow Leopard on new MacBook Air?

Since this comes with Lion installed, is it possible to downgrade to Snow Leopard? Is there anything that would prohibit me from booting up with a Snow Leopard disk?

Posted on Jul 20, 2011 9:11 AM

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55 replies

Jul 20, 2011 1:30 PM in response to mja8105

It is very doubtful that the Airs that were recently released with Lion preinstalled will support Snow Leopard. Apple products typically do not support versions (or even builds of the same version) which are earlier than the version / build they shipped with. As the new Airs also have new hardware, they may be locked to Lion.

Jul 21, 2011 9:38 AM in response to mja8105

i don't understand why they do this - it's a .0 release and many applications will have issues working with Lion!

if you're a professional, you need to go with tried and tested at least for the first 6months of life of an OS once developers catch up.


perhaps it will work, but if it doesn't

DA*MN APPLE - it's just so arrogant of them to do stuff like this


so guys, please let us know how it works out

Jul 21, 2011 10:30 AM in response to mja8105

WAG: It most likely depends upon if the video drivers on the SL disk will support the display on the new Air. If so the system should install. How satisfactory it will be remains to be seen. It is possible the display drivers for the new MBA will not install under SL and you will be limited in display performance.


I moved to Lion on July 1 and haven't looked back. I'm fortunate that 99% of my apps run just fine. I've had two minor problems...


The version of Kindle for Mac on amazon.com can't access the Amazon servers so it is essentially useless. Most of my technical books are in Kindle format so this was a major pain until I found that moving back in version to the release that is on the Mac Store works fine.


The second glitch is some of my onOne plugins for Photohop CS5 no longer work. onOne knows about it and is already working on an update.


All other apps I use have either been updated for Lion or just work.

Jul 21, 2011 2:08 PM in response to captfred

i don't really care about the special build of lion, and it really may not be that special - i reckon it's quite similar to the one available in app store.


anyways, there's a few ways to possible do it

one is to install Snow Leopard on an external USB drive, boot up from that drive and test how it works.

if that doesn't work you'd need to probably mount the lion install image on the MBA, use disk utility to restore from that to the external drive (erasing contents). then boot from that external drive, use disk utility to wipe the internal drive completely - this would remove the restore partition too and remove some intelligence!


then try and install from a snow leopard external drive (as in snow leopard image restored to external drive)

perhaps the firmware won't allow it! in that case it's easiest then to install Snow Leopard from scratch onto any Mac and mac a disk image of it

then use disk utility to restore from that to the MBA drive.

and boot up!

then run the latest snow leopard combo updater - that will ensure that you have everything!


i don't see why it shouldn't work. the intel 3000 is supported under snow leopard


if it doesn't work, apple has done something uncool in the firmware and alienated me as a user in the process

Aug 9, 2011 3:39 PM in response to captfred

The trick is to have the Air plugged into an external display.


I managed to install SL on a 15" MacBook Pro, use the Combo 10.6.8 updater, and then imaged the system onto the new air using a server with netboot.


It works but it does not detect the built in display at all.


You can probably do a direct network boot using the USB install disc that the previous generation Airs came with, provided that the new Air is plugged into an external display so you can see what you are doing.


Next question, how do you get the SL Intel video driver to properly detect the new Air's built in display?

Aug 15, 2011 5:12 PM in response to mja8105

Please advise. Here is what I'd like to do:

1. Buy and use the new macbook air with lion

2. Use patient software that will not work with lion but does work with leopard


Comment: As I understand, I can not and should not try to run leopard on the new air which does not give me an option for my software.


Question: Can I run snowleopard and therefore my software off of an external hd that I connect via usb to the Air?


Thanks.

Aug 30, 2011 5:00 PM in response to mja8105

another option:


if someone can make a 10.6.8 combo updated image (witch x1 and without the hole printer driver stuff) from one of the current sandybridge i.x macbook pros, there'll be very good chances that snow leo will run.


that was the way i get tiger running on the mac pros which comes with leo, some years ago. all i need was such an image from an imac with the same graphic card driver!


if anybody can figure it out and let us know??????

Install Snow Leopard on new MacBook Air?

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