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Alex-Microsmeta

macrumors 6502
Jul 14, 2018
376
630
Rome
Last trial UPDATING a CCC clone of an already dosdude1 patched Catalina (perfectly working on Macmini 2010) already with patched Kexts compatibility checks and telemetry deleted... If It will be unsuccesfully, I'll quietly wait the Official Big Sur patcher in July 🤓

EDIT: No luck! I momentarily forgive.
Perfect installation in 2 hours and then Big Sur crashes while booting. I wait the skilled hackers here to complete the official macOS 11 Big Sur patcher 😊 I'm already happy to have Catalina perfectly working having "workarounded" Kernel_Task using 100% CPU (now 4% Idle), Catalina on internal SSD falling boot if external hardisk isn't completely stopped (??) and Google Chrome not starting when clicking the icon (???) [I report bugs if someone here needs tricks about these issues also in macOS 11] ...and unsupported Windows 10 2004 May Update fast working with all drivers without bootcamp, booting from a 64 GB USB pendrive on Mac mini 2010
🤓
 
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christiann

macrumors 6502
Jun 7, 2020
449
167
North America
This thread will be used to discuss advancements in getting macOS 11.0 Big Sur running on unsupported Macs.

---
Compatibility List:

Macs officially compatible with macOS Big Sur:

  • 2015 and later MacBook
  • 2013 and later MacBook Air
  • Late 2013 and later MacBook Pro
  • 2014 and later iMac
  • 2017 and later iMac Pro
  • 2014 and later Mac mini
  • 2013 and later Mac Pro
Macs officially compatible with macOS Catalina but have been dropped from official support in macOS Big Sur:
- These Macs so far are capable of running Big Sur properly, but Wifi support is currently broken. See FAQ for more information.

  • 2012 and Early 2013 MacBook Pro
  • 2012 MacBook Air
  • 2012 and 2013 iMac
  • 2012 Mac mini
  • 2008-2012 Mac Pro*
*Not officially supported in macOS Catalina, but are fully capable of running both Catalina and Big Sur with a Metal-compatible GPU and upgraded Wifi/BT card.

Macs capable of being patched to run macOS Catalina properly and potentially can be patched to run macOS Big Sur:
- These Macs so far can boot Big Sur, but do not currently feature Wifi or graphical acceleration support. See FAQ for more information.

  • Early-2008 or newer Mac Pro, iMac, or MacBook Pro:
    • MacPro3,1*
    • MacPro4,1*
    • MacPro5,1*
    • iMac8,1
    • iMac9,1
    • iMac10,x
    • iMac11,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs were almost unusable when running Catalina and will be under Big Sur as well.)
    • iMac12,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs were almost unusable when running Catalina and will be under Big Sur as well.)
    • MacBookPro4,1
    • MacBookPro5,x
    • MacBookPro6,x
    • MacBookPro7,x
    • MacBookPro8,x
  • Late-2008 or newer MacBook Air or Aluminum Unibody MacBook:
    • MacBookAir2,1
    • MacBookAir3,x
    • MacBookAir4,x
    • MacBook5,1
  • Early-2009 or newer Mac Mini or white MacBook:
    • Macmini3,1
    • Macmini4,1
    • Macmini5,x (systems with AMD Radeon HD 6xxx series GPUs were almost unusable when running Catalina and will be under Big Sur as well.)
    • MacBook5,2
    • MacBook6,1
    • MacBook7,1
  • Early-2008 or newer Xserve:
    • Xserve2,1*
    • Xserve3,1*
*Not officially supported in macOS Catalina, but are fully capable of running both Catalina and Big Sur with a Metal-compatible GPU and upgraded Wifi/BT card.

Macs that WILL NOT BE SUPPORTED in any capacity:
  • 2006-2007 Mac Pros, iMacs, MacBook Pros, and Mac Minis:
    • MacPro1,1
    • MacPro2,1
    • iMac4,1
    • iMac5,x
    • iMac6,1
    • iMac7,1
    • MacBookPro1,1
    • MacBookPro2,1
    • MacBookPro3,1
    • Macmini1,1
    • Macmini2,1
  • — The 2007 iMac 7,1 is compatible with Catalina and potentially Big Sur if the CPU is upgraded to a Penryn-based Core 2 Duo, such as a T9300.

  • 2006-2008 MacBooks:
    • MacBook1,1
    • MacBook2,1
    • MacBook3,1
    • MacBook4,1
  • 2008 MacBook Air (MacBookAir 1,1)
  • All PowerPC-based Macs

---

FAQ:

Q: Why did Apple drop support for my perfectly capable Mac?
A: Only Apple can give a definite answer to this. However there is evidence that it is based upon the CPUs being used in the now-unsupported Macs, which was the case last year with the Mac Pro 4,1/5,1. Intel decided to stop releasing firmware security fixes for Ivy Bridge and previous-generation CPUs. While they are technically compatible and supported in Big Sur, Apple has decided it is not worth the risk to continue supporting CPUs that have permanently unpatched security holes, putting users at risk.

While this is also not confirmed, another possibility could be that some of the excluded Macs feature Wifi chips that are no longer deemed fit for the next major release. This decision could be based on the previously mentioned security issues as well. The presence of graphics drivers for some of these newly unsupported Macs in Big Sur Beta 1 suggests this.

Q: Will my unsupported Mac get macOS 11.0 Big Sur?
A: If your Mac had official support in macOS Catalina, they will likely be able to be patched to run Big Sur with minimal issues. As of writing, only WiFi appears to be broken.
If your Mac was unsupported before the release of macOS Catalina, support remains to be seen as graphics acceleration may not be feasible at this time. While Catalina still supported OpenGL (former macOS graphical API) and even used it as a fallback software render mechanism, Big Sur officially drops support and shifts to Apple's Metal API entirely.

Q: When will my unsupported Mac receive macOS 11.0 Big Sur? / ETA when?
A:
This is a community driven effort to try and restore support for various unsupported Macs. Community members are working as hard as they can, often in their spare time, to try and add back stable support for these Macs. Based upon changes in macOS Big Sur, it may be possible some Macs that were previously patchable in Mojave, Catalina, and other previous releases of macOS may not be patchable under Big Sur. Please do not harass the patch developers to go faster, release the patcher, etc. Please do not clog up the thread with useless posts asking if your specific Mac will be patchable. Big Sur was only just released in its initial beta form and a lot is still subject to change before the final release. Rest assured, the dedicated community of developers working on these patches are doing everything that they can to re-add support for as many Macs as possible.

Q: Where/how can I download macOS 11.0 Big Sur?
A:
For legal purposes, the only official way to obtain a copy of macOS Big Sur is to be a registered Apple Developer and pay a yearly $99 fee to become eligible for downloading beta software. According to Apple, a public beta which does not require a registered Developer account will be released at some point in July and will be free to sign up for. Please remember it is highly suggested that you do not install beta software on your main devices, overwriting any stable releases. Beta software can cause irreparable hardware damage or irrecoverable data loss and should be used at one's own risk.

Apple and all patch developers are not responsible for any potential damage or data loss caused by using pre-release software or unofficial support patches. Please use at your own risk.

Can’t believe you’ve already started working on it
 

nandor690

macrumors 6502
Jun 25, 2011
374
221
So I installed Big Sur on my Mac Mini Late 2012 early this morning. I went about it differently. I first made a Time Machine backup of my Catalina install, then I reinstalled Catalina so I could start from scratch. Instead of installing Big Sur on it's own partition, I installed it as an Update to Catalina. I used the Hax.dylib file and some other stuff to make it boot. As of right now, Big Sur boots every time I restart my Mac. I then followed that guide on Medium to get my wifi working, and now everything just works just as good as Catalina did. I even have all my clock settings. Then I just opened up Time Machine and put all my programs back on my Mac.

Edit: I know this is working better than the last time I installed Big Sur(separate partition) because once I installed Homebrew it doesn't take forever to install stuff with it and I'm not getting any build errors.
View attachment 927948
View attachment 928270
It’s been stuck like this, do I force reboot?
reboot and boot back into the installer. Mine stuck and did weird things and I just kept booting back into it and it finally finished
 

JohnDoe12

macrumors member
Nov 14, 2017
71
52
All right, hey everyone, I tried using the Hax dylib method on my 2012 13" rMBP which is supported but not officially.
I get the following error:

The operation couldn’t be completed. (BIErrorDomain error 3.)

Can anyone help me figure this one out? I'm pretty sure I did all of the steps okay
1593279347635.png
 
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jhowarth

macrumors 65816
Jan 13, 2017
1,122
1,500
It looks like the InstallAssistant binary will need a binary patch to disable the firmware check as the error message "Your Mac needs a firmware update in order to install to this volume. Please select a Mac OS Extended (Journaled) volume instead." occurs in the associated Frameworks/OSInstallerSetup.framework/Versions/A/Frameworks/OSInstallerSetupInternal.framework/Resources/en.lproj/OSISError_Server.strings file.
 
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Sjekke

macrumors newbie
Jun 21, 2015
6
6
Belgium
I used DosDude patcher to install Catalina on a Mac Mini late 2012 I7 Quadcore 16Gb with 2 SSD in RAID0 with AFPS. Works like a charm. I hope I can upgrade to Big Sur. Keep up the good work.
 

Fangio

macrumors 6502
Jan 25, 2011
375
473
10717
Installed Big Sur on a test drive in my cMP 4,1/5,1 now, and can also report WiFi is working with the @libneko method using the AirPortBrcm4331.kext. Very nice to have.
 

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brandonsierra

macrumors member
Jun 10, 2017
40
74
Nice job, where can we find a step by step manual?
[automerge]1593287627[/automerge]
c3df4d1ca59f55324496d1316d635b03-sticker.png

How is everyone doing on patching macOS 11 Big Sur?
 
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abelpinate

macrumors member
Jun 26, 2020
61
32
As are several others in the now 40 pages of posts.

I'm one of those is reading very close all, waiting to the next preview... but getting into the geek part. I managed in the past one hackintosh and this things are very cool to do... like a hobby, but since my mbp9,2 it's my main machine, I will wait a little bit.
 
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Reszej

macrumors newbie
Jun 24, 2020
2
3
Hello. Anyone successfully installed Big Sur on MacBookPro 5.4? Or there is any way to install it with everything working?
 
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