macOS 11 Big Sur on Unsupported Macs Thread

[duecedrvr]

I would think from a mobile computing standpoint, the ARM move makes a lot of sense.

with apples architecture in the A class chips.. (they could make desktop enhanced versions too) ... they are very multi core centric and can have energy efficient cores and high speed cores.. this will be AWSOME for power consumption and thermals

additionally, ARM is going back to power PC RISC based instruction sets, and since most apps don't need the complexity or energy heavy CISC and don't take advantage of the CISC.. again.. mobile platforms and very compact desktops like iMac and mac mini should be a boon...

I would think that the roadmap, for apple would be a full transition of MacBooks, iMac, and mac mini over the next 5 years while they likely develop a DESKTOP 'B xx' series chip that becomes workstation class.

having just released the intel based mac pro, if they were to supplant that machine that costs more than my first house... too soon... a lot of influential power mac users are going to feel BURNED...

unfortunately I remember the shift from power PC to intel.. .and the transition period where the OS was PPC/intel dual code was pretty short... until it went intel only with Snow Leopard.. I don't think this transition will be that quick.. again... if they transition macOS to ARM only in even 5 years.. that will not allow people to remotely amortize the costs of their mac pro investments and people will leave apple for good

 

[Nedstah]

Seems Catalina is the new Leopard. In addition to the processor, is there anything to the non upgradable RAM? Just asking, the Mac mini as an example. Since this is day one for Big Sur, I'm optimistic there's a future for Big Sur on earlier, unsupported Macs. Any chance of Big Sur on Pi 4?

 

[Macbookprodude]

I would think from a mobile computing standpoint, the ARM move makes a lot of sense.

with apples architecture in the A class chips.. (they could make desktop enhanced versions too) ... they are very multi core centric and can have energy efficient cores and high speed cores.. this will be AWSOME for power consumption and thermals

additionally, ARM is going back to power PC RISC based instruction sets, and since most apps don't need the complexity or energy heavy CISC and don't take advantage of the CISC.. again.. mobile platforms and very compact desktops like iMac and mac mini should be a boon...

I would think that the roadmap, for apple would be a full transition of MacBooks, iMac, and mac mini over the next 5 years while they likely develop a DESKTOP 'B xx' series chip that becomes workstation class.

having just released the intel based mac pro, if they were to supplant that machine that costs more than my first house... too soon... a lot of influential power mac users are going to feel BURNED...

unfortunately I remember the shift from power PC to intel.. .and the transition period where the OS was PPC/intel dual code was pretty short... until it went intel only with Snow Leopard.. I don't think this transition will be that quick.. again... if they transition macOS to ARM only in even 5 years.. that will not allow people to remotely amortize the costs of their mac pro investments and people will leave apple for good

and if thst happens, bye bye Apple.
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Seems Catalina is the new Leopard. In addition to the processor, is there anything to the non upgradable RAM? Just asking, the Mac mini as an example. Since this is day one for Big Sur, I'm optimistic there's a future for Big Sur on earlier, unsupported Macs. Any chance of Big Sur on Pi 4?

pi 4 ? NO

 

[Nedstah]

and if thst happens, bye bye Apple.
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pi 4 ? NO

Hmm, we'll see

 

[Cindy_Thornton]

and if thst happens, bye bye Apple.
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pi 4 ? NO

what about my 2006 iMac and my mid 2007 SSE4 upgraded cpu iMac

 

[TimothyR734]

what about my 2006 iMac and my mid 2007 SSE4 upgraded cpu iMac

we don't know yet until the developers get it up and running and figure out how to patch it

 

[SGN]

I created a basic patch which seems to get a copy of the OS installed.
View attachment 926159

My steps (briefly) were:
- Disable Library Validation and SIP
- launchctl setenv DYLD_INSERT_LIBRARIES $PWD/Hax.dylib
- Open and click through the installer app

This is all that's necessary for an "install to this machine" outcome. However, it currently does not boot... will report back if I figure anything out.

For anyone else who only has an unsupported machine and wants to test, here are the files! There are definitely alternatives like using OpenCore, cloning from a supported machine, etc. But thought I'd share this anyways.

oof. i do not want to brick my machine. Right, i think i'll wait untill there's an official guide out there. Thank you for your work!!! you're praised by people left and right!

 

[eric89074]

Seems Catalina is the new Leopard. In addition to the processor, is there anything to the non upgradable RAM? Just asking, the Mac mini as an example. Since this is day one for Big Sur, I'm optimistic there's a future for Big Sur on earlier, unsupported Macs. Any chance of Big Sur on Pi 4?

What a shame to leave models behind on a dog like Catalina.

 

[duecedrvr]

I would think that keeping big sur and any future macOS release that is dual intel/ARM patched should be doable.. the question mark probably won't be the intel processor compatibility but driver compatibility for subsystems like graphics, network, etc....

again.. I believe that it would be a monumental mistake by apple to sunset macOS off intel before at least the 5 year mark on the mac pro... or there will be a revolt.. possibly law suits.. .that is helaciously expensive hardware to get less than 5 years updates on
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the people that need to make the noise here are the big iron developers for pro apps like Adobe and big users like movie production firms that need to demand that apple support the intel architecture until the new mac pro reaches a certain age...

 

[roobarb!]

again.. I believe that it would be a monumental mistake by apple to sunset macOS off intel before at least the 5 year mark on the mac pro... or there will be a revolt.. possibly law suits.. .that is helaciously expensive hardware to get less than 5 years updates on

It was mentioned in the keynote video that they have new unannounced Intel hardware in the pipeline and will be supporting Intel "for years to come", so I'd say 5 more years of Intel seems fairly realistic. Guess we'll tap out around macOS 11.4.

Ha, I've just noticed from my own sig that my MacBook Pro is still supported. For some reason I thought it was a 2012! It's not seen much use since the enforced work from home.

 

[eric89074]

I would think that keeping big sur and any future macOS release that is dual intel/ARM patched should be doable.. the question mark probably won't be the intel processor compatibility but driver compatibility for subsystems like graphics, network, etc....

again.. I believe that it would be a monumental mistake by apple to sunset macOS off intel before at least the 5 year mark on the mac pro... or there will be a revolt.. possibly law suits.. .that is helaciously expensive hardware to get less than 5 years updates on
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the people that need to make the noise here are the big iron developers for pro apps like Adobe and big users like movie production firms that need to demand that apple support the intel architecture until the new mac pro reaches a certain age...

Apple screwed tons of people when they moved from power PC to intel and nothing happened.

 

[ASentientBot]

There is no AVX requirement!!!

All that is necessary to reach the desktop is installing with my method, then deleting the Telemetry plugin (thanks again @jackluke, that's three years now!) and it boots to the desktop. No accel, of course... that will be the real challenge.

But there is still hope

 

[Dr Alves]

YESSSSSS!!!!

 

[duecedrvr]

Apple screwed tons of people when they moved from power PC to intel and nothing happened.

yeah but back then a single computer didn't cost $70,000
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I will amend one thing that I said..

a quick look at the list of big sur machines.. all have a apple secure enclave chip?

if that is the case then Apple could decide to encrypt the entire operating system and require that the secure enclave be used .. with no option to disable it...

if that is the case then I don't believe that would be something we would be able to patch out

funny thing is that hackintoshing has likely not been shut down in the past because apple secretly would refer to the community as their skunk works they didn't have to pay for...

they on more than one occasion were caught using patches and code by the community having not taken out a name or comment in a kext by a hackintosher...


apple has gotten quite a bit out of our community but since the introduction of the touch bar and T2 secure enclave.. we all saw the writing on the board...

 

[Lycestra]

FYI, in the PowerPC to Intel transition, you got just over 4 years from the moment the transition was public to the release of Snow Leopard (June 6, 2005 to August 2009). That was probably intentional, so people who got surprised could still be able to depreciate it while it's supported over those years. There was even a new PowerMac G5 released in October 2005, after the transition announcement, so if you bought that, you'd have between 3 and 4 years of support (August 2009). An Intel Mac Pro didn't appear until August 2006, over a year after the transition announcement.

 

[eric89074]

There is no AVX requirement!!!

View attachment 926185
View attachment 926186

All that is necessary to reach the desktop is installing with my method, then deleting the Telemetry plugin (thanks again @jackluke, that's three years now!) and it boots to the desktop. No accel, of course... that will be the real challenge.

But there is still hope

nice. I bet running Sur on unsupported metal Macs will be easier than running Mojave on non metal Macs was.

 

[duecedrvr]

There is no AVX requirement!!!

View attachment 926185
View attachment 926186

All that is necessary to reach the desktop is installing with my method, then deleting the Telemetry plugin (thanks again @jackluke, that's three years now!) and it boots to the desktop. No accel, of course... that will be the real challenge.

But there is still hope

sweet work.. remember though that this is a VERY EARLY developer preview.. so apple has multiple ways to lock this down in future revisions or just before going gold master

 

[Lycestra]

a quick look at the list of big sur machines.. all have a apple secure enclave chip?

Secure enclave is part of all Apple ARM chips, which includes the T-series in all new Macs

Edit: I think I just got your question. No, not all supported machines have a secure enclave chip. Mac Pro 2013 certainly doesn't have a T-series chip, but it is supported.

 

[Vital L]

I created a basic patch which seems to get a copy of the OS installed.
View attachment 926159

My steps (briefly) were:
- Disable Library Validation and SIP
- launchctl setenv DYLD_INSERT_LIBRARIES $PWD/Hax.dylib
- Open and click through the installer app

This is all that's necessary for an "install to this machine" outcome. However, it currently does not boot... will report back if I figure anything out.

For anyone else who only has an unsupported machine and wants to test, here are the files! There are definitely alternatives like using OpenCore, cloning from a supported machine, etc. But thought I'd share this anyways.

I don't get how to do this??? Can you explain?

 

[LegoNickD]

There is no AVX requirement!!!

View attachment 926185
View attachment 926186

All that is necessary to reach the desktop is installing with my method, then deleting the Telemetry plugin (thanks again @jackluke, that's three years now!) and it boots to the desktop. No accel, of course... that will be the real challenge.

But there is still hope

All right! we could probably have acceleration working by the end of the week if we already have it booting. Long live the core 2 duo unibody's!

 

[ASentientBot]

Oh noooooooooo... Now that the whole OS is signed, they took out the binaries from frameworks. They're just in the dyld cache, like on iOS.

Edit: binaries in frameworks override the cache.

Edit: and they changed (disabled?) the kextcache command, and prevented chowning something to root. Edit: I was wrong about that. And see my later post for how to rebuild the new kext cache.

 

[CharlieRuiz97]

There is no AVX requirement!!!

View attachment 926185
View attachment 926186

All that is necessary to reach the desktop is installing with my method, then deleting the Telemetry plugin (thanks again @jackluke, that's three years now!) and it boots to the desktop. No accel, of course... that will be the real challenge.

But there is still hope

Sweet!

 

[Zahilla]

Oh noooooooooo... Now that the whole OS is signed, they took out the binaries from frameworks. They're just in the dyld cache, like on iOS.

What about the 2008 20 inch imac and 2009 27 inch imac i need to know about those

 

[SGN]

sweet work.. remember though that this is a VERY EARLY developer preview.. so apple has multiple ways to lock this down in future revisions or just before going gold master

I would highly recommend everyone on here, especially if trying out on their main devices, to wait untill there's an official guide and the Golden Master version has been released. Just be patient people ?

 

[Macbookprodude]

Apple silicon ??? Just call the god damn thing POWERPC 2