crwdns2933423:0crwdne2933423:0

Model A1224 / Mid 2007 and Early 2008 / 2, 2.4, or 2.66 GHz Core 2 Duo processor

crwdns2934591:0549crwdne2934591:0 crwdns2934593:0crwdne2934593:0

How to install MacOS Sierra on unsupported Macs such as the mid 2007?

I have an iMac 20" 2.4GHz Core 2 Duo (Early 2007)

I want to get the new updated MacOS Sierra on it. It won't let me! So is there any other way to go around this other than the app store?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 2
crwdns2942205:01crwdne2942205:0

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

crwdns2933315:02crwdne2933315:0

crwdns2934057:0crwdne2934057:0

I'm working on it. Keep you eye on this question. I've been sick the last week or so due to new medications but should be back at it shortly:

Installation of High Sierra 10.13 on unsupported Macs

However, I don't believe I'm going to able to do it on the early 2008 machine and earlier. I'll be going for a 2008 MacPro first.

Lat year I got the early 2009 machine to Sierra and it was not supported, so we'll hAVE TO SEE.

crwdns2934105:0crwdne2934105:0

crwdns2889612:0crwdne2889612:0 2

crwdns2944067:04crwdne2944067:0:

I had a early/mid 2009 Mac Air. Installing Mavericks was doable. But the thing crawled. Startup was a healthy(?) 4 minutes. Nothing was usable when running it. I had to revert to Mountain Lion to have a usable computer. To paraphrase Dr. Ian Malcolm, "we are preoccupied on if we could do this instead of if we should." :-)

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

@mayer - Don't forget your Mac Pro has a Xeon CPU (64bit) where as the iMac in this case has a Core 2 Duo 64bit internally and 32bit externally and only has a 32bit BIOS (EFI).

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

@danj I started this because Apple pulled support for Sierra on my Mac Pro 2009 2 x 2.93 Quad-core Xeon. All it really needed was a firmware bump from 4,1 to 5,1.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

@mayer have you tried a patched kernel?

http://www.insanelymac.com/forum/topic/3...

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

Sadly this is just not possible! First the Core 2 Duo based systems are only 32bit and you need a 64bit chip (i Series) & 64bit clean BIOS (EFI).

Even if you could get it to run using a thunker service (I don't know of any) you would run into RAM and graphics limitations.

Time to get a newer system if you really need the newer OS.

crwdns2934105:0crwdne2934105:0

crwdns2889612:0crwdne2889612:0 1

crwdns2942205:01crwdne2942205:0:

This is unfortunately the only solution.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

Adain crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 3

crwdns2936753:07crwdne2936753:0 6

crwdns2936753:030crwdne2936753:0 36

crwdns2942667:0crwdne2942667:0 6,240