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macOS 11 Big Sur on Unsupported Macs Thread

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The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
borp99 said:
Big Sur 11.2 on Mac Pro 3,1 (2008)??

Hi all,

I've been avidly following this forum since day one and have enjoyed getting BS running on my trusty 2010 cMP 5,1 through all of the early betas and stable later releases.

I recently bought a cMP 3,1 to gift to my sister as a surprise (to replace her cMP 1,1 which is limited to 10.11). I've installed 10.6.8, 10.12.6 and 10.15.7 on a Samsung Pro SSD inside the 3,1 and everything is running fast and sweetly. The GPU has been updated with a 'metal' HD7950 card I had spare and the dual CPU's upped to 3GHz E5472's (SSE4.1 compliant).

However, trying to install Big Sur is causing me endless frustration. I've tried using micropatcher 0.51 and 0.53, the MicropatcherAutomator app, BigMac’s 2.0alpha2 patcher and even jackluke's BaseSystemFix restore image (where you swap out the SharedSupport.dmg with the latest one), and also tried various types of OpenCore - but all suffer from the same one problem I've found mentioned only once on a Google search (with no solution), and haven't found anything searching this specific thread either,... which is that the patched BS installer gets to the Install window but with no USB keyboard or mouse support - so the mouse pointer is stuck in the top left hand corner and no installation is possible to enact. The various patching methods are supposed to inject a LegacyUSB kext but it just doesn't seem to be working for me. I tried adding the legacy (USB 1.1) MacPro3,1 integer strings under IOKitPersonalities_x86_64 in the AppleUSBHostMergeProperties.kext's Info.plist (that kext inside the IOUSBHostFamily.kext), but the modified BaseSystem.dmg then no longer matches the BaseSystem.chunklist file, so the installer fails to load that way too. I'd love to add BS to my sister's 'present', so she's up to date with all things Mac.

So, has anyone with a 3,1 had the frozen USB pointer problem and found a way to get around it to install Big Sur?
Click to expand...
Hello :https://github.com/StarPlayrX/bigmac/issues
 
Bmju said:
I was wondering, what were you thinking of? Specifically, what is it that is putting you off using it on your MacBook Pro, especially if you're already familiar with it?

I wonder, it may be because there's a perception (I believe, incorrect!) that OpenCore is somehow more hacky, because it comes from the Hackintosh universe?

Don't forget:
  • OpenCore is an incredibly clean and well-written program
  • In the end, either approach has to change something (and the more, the more incompatible your machine is - you have a very compatible machine)
  • The basic key to fixing any larger incompatibilities (i.e. using non-Apple kexts, and patches) is the *same* in both OC and in the micropatcher, and also in the legacy Mac and the Hackintosh world!
  • So it's not OC that makes your unsupported Mac partially a Hackintosh - in some sense - it's that you're running an unsupported OS on it. (Already!)
  • The clearest difference between OC and a patcher is that, in OC, any changes are not permanently applied to the OS on the disk, i.e. 'patching', but instead are applied by 'injection': any changes needed are applied on the fly, as you boot up, from the completely clean, unmodified OS which remains on disk (this is NOT the case, in the patcher)
I'm actually using OC my own 2012 MacBook Pro because I believe it's a cleaner solution, with less changed than using the patcher - for me. (Though that said, I have *some* reservations about the current OCLP config - which also, I believe, changes more than it needs to.) In any event, a direct result of OC's different (and arguable even cleaner) approach, is that it is currently the only known way to get preference pane (aka OTA) updates, if you want them. So you have to live without them, or jump ship!

(OCLP is one easy way to get and configure OC; probably by far the easiest, in fact; but not the only way.)
Click to expand...
Yeah, I guess because OC is used mainly for Hackintosh(as in my case as well) I was not confident enough to install it on my MacBook, So you say it works properly with no issues including wifi etc? can you share your EFI Folder?
 
Surenmunoo said:
Yeah, I guess because OC is used mainly for Hackintosh(as in my case as well) I was not confident enough to install it on my MacBook, So you say it works properly with no issues including wifi etc? can you share your EFI Folder?
Click to expand...
I physically upgraded my Wi-Fi card (I put a post about it somewhere much earlier) - which means you can run Big Sur completely unpatched (with just this one boot-args nvram setting that you can set by hand, to allow it to start - also posts about this earlier too!). (Though while you can *run* it unpatched, you can't *install* it without a patcher or OpenCore - so this approach gets fiddly, not recommended except for enthusiasts!)

Because of that, I don't know first hand myself as regards Wi-Fi with a non-upgraded card, but I do believe from all the reports on here, yes, almost certainly it's completely fine.

I would suggest going with OCLP. I'm always fiddling around with my own settings, and trying new features from the latest bleeding edge builds of OpenCore - just for interest - it's fine without having to do that!
 
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ray308 said:
Just installed macOS 11.2.1 (build 20D75) on my iMac late 2013 27" with Fusiondrive ;-)
Used micropatcher 0.5.1 from barrykn. I only had to do an extra IFE BOOT after completing install as stated on his Github page (bullet 9). Works smooth no problems at all.
Click to expand...
Perfect, Ray308, but could you kindly attach the link to download 11.2.1? How did you do it? ... In the official catalog it does not exist, but it would seem possible to have this version only with OTA updates and, therefore, only if you use OpenCore. Thank you for answer
EDITING
I found the link and other information on the basis of which we should install 11.2.1
SO, KINDLY, SOMEONE EXPLAIN TO ME HOW CAN I DELETE THE POST, instead of editing to correcting? ... Thanks so much.
N.B.: I point out that I used the bold typeface only to draw attention to my question and not to scream. ;)
 
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anyone able to get wifi working with the stock wifi/bluetooth card in the 2009/2010 mac pro.......patched sur worked with no problems but now that ive reinstalled big sur and tried big macs patcher wifi does not work after running post install......doesn't show up in system profiler nor in the network preferences. Anyone have a link or instructions to get it working. Thanks guys!
 
kayaman80 said:
How can we use this? simply updating and repatching wifi from setup assisant?
Click to expand...
Edited: users have reported problems getting this installer to be recognized. Back up first! -- Buckrock

Technically, since this is a 'complete' installer, using it can't be called 'updating.' I use BarryKN's ver 0.5.1 micropatcher and follow his instructions for your specific device. Installing this from a USB install drive will not alter any of your data or settings -- do it right over the top of any Big Sur install. Lastly, remember to backup and thank BarryKN, et al.
 
Last edited:
OKonnel said:
Perfect, Ray308, but could you kindly attach the link to download 11.2.1? How did you do it? ... In the official catalog it does not exist, but it would seem possible to have this version only with OTA updates and, therefore, only if you use OpenCore. Thank you for answer
EDITING
I found the link and other information on the basis of which we should install 11.2.1
SO, KINDLY, SOMEONE EXPLAIN TO ME HOW CAN I DELETE THE POST, instead of editing to correcting? ... Thanks so much.
N.B.: I point out that I used the bold typeface only to draw attention to my question and not to scream. ;)
Click to expand...
You can't fully delete your post. Best thing is to edit it by deleting all and replace with "Deleted by poster".
 
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mrbubzie said:
anyone able to get wifi working with the stock wifi/bluetooth card in the 2009/2010 mac pro.......patched sur worked with no problems but now that ive reinstalled big sur and tried big macs patcher wifi does not work after running post install......doesn't show up in system profiler nor in the network preferences. Anyone have a link or instructions to get it working. Thanks guys!
Click to expand...
You may need to reinstall BS (which build?) using patched sur. If that works, I'd stick with it.
 
My 2008 MacBookPro is running macOS Mojave V10.14.3 via DosDude's programs/patchers

I have not been considering further OSX upgrades and have been away from this forum.

Can my MBP have its OSX upgraded further via DosDude, OpenCore, Other Patchers and run reasonably well?

= MacBookPro(17-inch, Early 2008) running Mojave v10.14.3
2.5 GhzIntel Core 2 Duo
Memory 6GB 667 MHz DDR2 SDRAM
NVIDIA GeForce 8600 GT 512MB
WiFi Broadcom BCM43xx
Bluetooth- not available

Thanks for your time/consideration.
 
buckrock said:
Technically, since this is a 'complete' installer, using it can't be called 'updating.' I use BarryKN's ver 0.5.1 micropatcher and follow his instructions for your specific device. Installing this from a USB install drive will not alter any of your data or settings -- do it right over the top of any Big Sur install. Lastly, remember to backup and thank BarryKN, et al.
Click to expand...
Ok, thank you, i will try, i will use this Patcher instead of Patched Sur, and of course i will do a backup before, the system with 11.0.1 runs so well
 
from what I see, people are not very familiar with OpenCore, you don't need patched kexts if you changed the wifi card (my case), my OpenCore is in the system's EFI folder and runs like a native system, without boot screens, just I turn on the power button and the system starts, for OTA updates too, even with a reset on the PRAM / NVRAM, because OpenCore is on the system partition, in the system's EFI folder, it behaves like a native system, even if it turns off the macbook and reset the NVRAM.

MacBook Air 2012 11" 4GB RAM Intel HD Graphics 4000 1536MB
 

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buckrock said:
Technically, since this is a 'complete' installer, using it can't be called 'updating.' I use BarryKN's ver 0.5.1 micropatcher and follow his instructions for your specific device. Installing this from a USB install drive will not alter any of your data or settings -- do it right over the top of any Big Sur install. Lastly, remember to backup and thank BarryKN, et al.
Click to expand...
Another thing is that this format is in .pkg, how can i create a patched installer with .pkg? i never did it
 
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Sorry, another thing...how can i create a bootable installer of this .pkg? I always used .app, i don't know how to do
 
kayaman80 said:
Another thing is that this format is in .pkg, how can i create a patched installer with .pkg? i never did it
Click to expand...
You are in luck! BarryKN's ReadMe has great instructions on what to do with the pkg file and how to use 'createinstallmedia' to prepare the installer USB.

Note: users have reported problems with this pkg. Use with caution. -- Buckrock
 
Last edited:
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furdi said:
Hey! I have downloaded two times the full installer and after patching it with Barry's 0.5.1 patcher, when trying to install it sais that the installer is damaged and I should re-download... Any ideas? I'm on MBP mid 2012 13" running macOS Big Sur 11.2.1. Thanks!
Click to expand...
First, let me tell you that I'm very happy with 11.2.1 on my rMBP so I won't be trying betas for BS 11.x. So, I haven't used micropatcher on this 11.3 beta 2 installer. So, if anyone has successfully used 0.5.1 on this beta, please let us know it works.

Hopefully, you still have your patched 11.2.1 installer -- you can simply re-apply it.
 
buckrock said:
First, let me tell you that I'm very happy with 11.2.1 on my rMBP so I won't be trying betas for BS 11.x. So, I haven't used micropatcher on this 11.3 beta 2 installer. So, if anyone has successfully used 0.5.1 on this beta, please let us know it works.

Hopefully, you still have your patched 11.2.1 installer -- you can simply re-apply it.
Click to expand...
Thank you for the clarification. I guess 0.5.1 doesn't work with this version... :(((
 
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borp99 said:
Big Sur 11.2 on Mac Pro 3,1 (2008)??

Hi all,

I've been avidly following this forum since day one and have enjoyed getting BS running on my trusty 2010 cMP 5,1 through all of the early betas and stable later releases.

I recently bought a cMP 3,1 to gift to my sister as a surprise (to replace her cMP 1,1 which is limited to 10.11). I've installed 10.6.8, 10.12.6 and 10.15.7 on a Samsung Pro SSD inside the 3,1 and everything is running fast and sweetly. The GPU has been updated with a 'metal' HD7950 card I had spare and the dual CPU's upped to 3GHz E5472's (SSE4.1 compliant).

However, trying to install Big Sur is causing me endless frustration. I've tried using micropatcher 0.51 and 0.53, the MicropatcherAutomator app, BigMac’s 2.0alpha2 patcher and even jackluke's BaseSystemFix restore image (where you swap out the SharedSupport.dmg with the latest one), and also tried various types of OpenCore - but all suffer from the same one problem I've found mentioned only once on a Google search (with no solution), and haven't found anything searching this specific thread either,... which is that the patched BS installer gets to the Install window but with no USB keyboard or mouse support - so the mouse pointer is stuck in the top left hand corner and no installation is possible to enact. The various patching methods are supposed to inject a LegacyUSB kext but it just doesn't seem to be working for me. I tried adding the legacy (USB 1.1) MacPro3,1 integer strings under IOKitPersonalities_x86_64 in the AppleUSBHostMergeProperties.kext's Info.plist (that kext inside the IOUSBHostFamily.kext), but the modified BaseSystem.dmg then no longer matches the BaseSystem.chunklist file, so the installer fails to load that way too. I'd love to add BS to my sister's 'present', so she's up to date with all things Mac.

So, has anyone with a 3,1 had the frozen USB pointer problem and found a way to get around it to install Big Sur?
Click to expand...
Try to set up the installer Language to English if it isn´t already.
 
kayaman80 said:
Sorry, another thing...how can i create a bootable installer of this .pkg? I always used .app, i don't know how to do
Click to expand...

Download the pkg, install it. After installed go to Applications folder, right click the "Install macOS Big Sur Beta" and click "Show Package Contents" then open "Contents" folder, then "Resources" folder. Open terminal and type sudo with a space after it, then drag the "CreateInstallMedia" from the Resources folder into the terminal window. Put a space and then write --volume with a space after that, then drag your Flash drive (USB stick or whatever) into the terminal window and hit enter, that's it. If you're using the multi patcher don't forget to patch the flash drive after it's done.

This is how you create a bootable installer from a pkg, but keep in mind if you are trying to create a bootable installer with 11.3 beta 2 you might run into an error like I did that said the installer was damaged (not sure why because this never happened to me before with any betas or regular releases). I had to instead make a bootable 11.3 beta 1 installer and use opencore to update to 11.3 beta 2 successfully.

IbrahimFmc said:
it is shown installer not valid or damaged
Click to expand...

Same thing happened to me with 11.3 beta 2 after making a bootable installer, when I was about to install it it told me the installer was damaged. I had to install 11.3 beta 1, then update to 11.3 beta 2 with opencore.
 
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ray308 said:
Just installed macOS 11.2.1 (build 20D75) on my iMac late 2013 27" with Fusiondrive ;-)
Used micropatcher 0.5.1 from barrykn

I only had to do an extra IFE BOOT after completing install as stated on his Github page (bullet 9). Works smooth no problems at all.

View attachment 1731463
View attachment 1731462
Click to expand...
My iMac late 2012, 13,1 is configured to dual boot into two different versions of macOS. The fusion drive runs version 11.2 at the moment and 11.2.1 has just been installed on an external HDD drive using BKN's patcher version 0.5.1. The installation went smoothly, if rather slowly, via USB. Patch-kexts.sh restored the WiFi functionality.
Safari does not run and generates the attached error that the Safari version is not compatible with macOS 11.2.1, The Safari version is 14.1 compared with 14.03 that runs without problems under macOS 11.2.
Has anybody else seen this problem?
 

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