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Hello! so I have an update on the Mac mini (Mid 2010) and the MacBook (Late 2008). this came by surprise, but @jackluke 's Big Sur Fixes seemed to work to install macOS Big Sur 11.0.1 Public Release on both computers. There may be no graphics acceleration still, but it is rather bearable. I used JackLukes Legacy USB BaseSystem Fix on a USB with the public release version of Big Sur that has been downloaded from GibMacOS, and was able to complete Stage 1 and 2. I then booted the USB and was able to get to the install screen. Used Hax3 in the install recovery to patch the installer, and installed Big Sur. when Big Sur Rebooted, I completed the Preboot and booted back into the USB. I then installed OpenCore (on both the Mini and the MacBook) and completed the Stage3 fixes, FrameBuffer, USB, and more, and was able to get everything working as intended. As of now, the Mini is running macOS Big Sur dualbooted with Catalina, and it is the same with the MacBook. This enlightens hope that the Mac mini Mid 2010 (a1347) and the MacBook Late 2008 (a1278) are able to run Big Sur without the use of an external/newer Mac. This also should shed more hope that more devices are able to run Big Sur. time for me to find ways to get graphics acceleration, though..........
 

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  • Screen Shot 2020-11-20 at 3.18.10 PM.png
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I am about to update my late 2013 iMac to Big Sur by following the instructions in:

For what it's worth, my iMac has an SSD, not a Fusion drive.

Once I do so, will I receive OS updates through the normal process? (i.e., not have to go through the micropatcher every time).
 
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Seems apple take awareness of EFI bricking on supported BigSur Mac (both Haswell architecture as iMac14,1 BigSur unsupported):

I also read that the new BigSur 20B50 update blocks the update on those affected machines, making them temporary unsupported.
I can confirm with the 20B50 installer package attempting to boot to the USB installer simply produces a prohibited sign. After patching the USB installer, it boots right up and installs with no issues. This is on a Mid 2014 13" MacBook Pro.
 
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I also have 2012 Mac mini. Do you have problems with top bar taking something like 20s to load? Also the screensaver are lagging hard. Something like 2-3 fps. Do you have any problems like these? Maybe I should do a clean install?
Depends on which screensaver, drift (screensaver) is jerky on my Mac Mini as with other Users here, has been mentioned before.
 
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Drift is slow and laggy on my 2012's on Catalina and BS. I think the 4000 just can't handle it in 2020
I have both Catalina on a 2012 mac mini and Big Sur on another 2012 mac mini machine with the 2.5 GHz cpu and they both run Drift screensaver with no lag and no stutter , so I know they can do it well , I have Samsung EVO 500GB SSD and 16 GB RAM in both machines
 
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Just a random question, how do you do the thing where you can have a line of code on macrumors and it’s surrounded by like a gray background?
 
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Where did you get that link, I don't see it in the sucatalog?

Edit, I downloaded it, mounted the Sharedsupport.dmg, copied the zip to an external disk, unzipped it and opened the SystemVersion.plist, it is indeed 11.1
Cheers
Download gibMacOS-master at GitHub. Run GibMacOS.command in Terminal. After switching catalogs you can look at the url, download the sucatalog, look at in TextEdit and search for the pkg.

And ... just to be precise, the version is Beta 11.1 (20C5048l). It is not a final release -- just the first of probably many betas for 11.1.
 
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Just a random question, how do you do the thing where you can have a line of code on macrumors and it’s surrounded by like a gray background?
use this code tags to get the grey box:

[code]your fabulous grey boxed code[/code]

and this inline code tags to get the blue inline code

Code:
[icode]your fabulous inline code[/icode]
 
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Download gibMacOS-master at GitHub. Run GibMacOS.command in Terminal. After switching catalogs you can look at the url, download the sucatalog, look at in TextEdit and search for the pkg.

And ... just to be precise, the version is Beta 11.1 (20C5048l). It is not a final release -- just the first of probably many betas for 11.1.
Done..and working including Wifi
(See screenshot + 256 GB SSD + 500 GB HDD)

Screenshot 2020-11-20 at 23.15.59.png
 
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Downloaded and installed 11.1 beta with no problems.

2012 MacBook Pro Retina 15", i7-3615QM 2.3GHz (MacBookPro10,1) with upgraded 1TB SSD and Broadcom BCM94360CSAX Airport

I have Big Sur, Catalina and Windows 10 (Insider) partitions on my MBPr and I'm starting to think that I may no longer need Catalina.

Thanks, @buckrock for the InstallAssistant.pkg link.

Screen Shot 2020-11-20 at 2.25.37 PM.png
 
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