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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.
Installing while I am of into bed, just let it install overnight, I am installing this Big Sur beta from a very slow USB stick, actually a flash card in a USB reader stick, next time I will create a partition on my external Firewire 800 connected disk, must be much faster.
 
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Alright gents, getting ready on my end.

I currently have a Catalina/Windows 10 configuration and would like to keep the Windows 10 partition after upgrading to Big Sur. I’m assuming the only way I can attempt to do this would be to blow everything up and start from scratch?

it’s a mid 2012 15” MBP and have never attempted this before so looking for some tips from someone attempting something similar.
 
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Big Sur on cMP 5,1 with BroadCom BCM94352HMB WiFi BLE update and flash RX-580.
Catalina stock except for patched IOBlueTooth Framework (Continuity PLIST) and plugin whitelist. Watch Unlock and handoff work.
BigSur is installed with big-sub-micropatch. Continuity flag in framework is set to true with blessed snapshot.. There is no relevant plugin in IO80211Family kext. Watch Unlock works, but there is no handoff. I can run with SIP enabled.
This is the only thing left before completely changing over.
Any ideas?
 
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0423MAC said:
Alright gents, getting ready on my end.

I currently have a Catalina/Windows 10 configuration and would like to keep the Windows 10 partition after upgrading to Big Sur. I’m assuming the only way I can attempt to do this would be to blow everything up and start from scratch?

it’s a mid 2012 15” MBP and have never attempted this before so looking for some tips from someone attempting something similar.
Click to expand...
DD (Backup)the disk.

Edit: DD = whole bit by bit copy disk.
 
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justperry said:
DD (Backup)the disk.

Edit: DD = whole bit by bit copy disk.
Click to expand...
Thanks. I will look into this, but I’m actually not too concerned about the personal data and willing to wipe everything if necessary to get it done.

Hoping there is a quick YouTube or text tutorial to follow. If not I will likely do one myself to help make it easier for others new to this as i an.
 
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abelpinate said:
No, that's a spare one I'm selling, my main it's a MBP9,2 and I was thinking about that, if I should left a partition or any spare drive with Catalina in case of panic or any problem.

It's not safe to use this in a main working machine?
Click to expand...
I have found it is always useful to keep at least one older version around. I actually have boot partitions/volumes with everything back to High Sierra on my dev machines.
My main issue is app testing. VMs are not always conclusive. But the other is that you do not know whether all your tools work until they don't.
 
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MacBook Air 2012, so far so good. Installed via hax.dylib.
 

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EDIT: I wanted to edit this and mention that I am using a compatible Bluetooth/wifi card.

Hello everyone! Iv got a question. On my Mac Pro 4,1 flashed to 5,1, ever since high Sierra I would have to run this in order for handoff and continuity and unlock with Apple Watch to work right.
sudo mount -uw /

sudo /usr/libexec/PlistBuddy -c "Set:Mac-F221BEC8:ContinuitySupport true" "/System/Library/Frameworks/IOBluetooth.framework/Versions/A/Resources/SystemParameters.plist"

sudo -E perl -pi -e "s/\Mac-00BE6ED71E35EB86/\Mac-F221BEC8\0\0\0\0\0\0\0\0/" /System/Library/Extensions/IO80211Family.kext/Contents/PlugIns/AirPortBrcm4360.kext/Contents/MacOS/AirPortBrcm4360

sudo touch /Library/Extensions

sudo kextcache -i /

But I can't run those commands on Big Sur. Mainly because it says the plugin for the airportbrcm4360 doesn't exist.

So, what iv been doing is installing Catalina first. Then running those commands to get handoff and everything working and then just updated to a version of Big Sur.

I ran into a new problem. The latest version of Big Sur breaks this.

My question is is how is everyone else with a Mac Pro 4,1 or 5,1 getting this to work.

THANK YOU for any help it is much appreciated
 
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iMac 11,1 - AMD RX580 - Big Sur Version 11.0.1 (20B28)

Using the OC DSDT patch and micro patcher 0.5.0 and some unreleased personal adjustments to auto detect and patch the iMac family....

Thanks, again: @khronokernel and @Barry K. Nathan and @jackluke !

Just one observation (black screen issue):

After patching using the stock OC version @khronokernel published on discord I loose video output internally and externally, even if I just did the --2011 or --2010 or a special patch mode not adding a single video related patch, i.e. only:

INSTALL_HDA="YES"
INSTALL_LEGACY_USB="YES"
INSTALL_BCM5701="YES"
INSTALL_WIFI="mojave-hybrid"

We know this from Sierra, Mojave and Catalina to happen because the AppleGraphicsControl lacks some board-ids in the info.plist of the AppleGraphicsDevicePolicy. But even after adding these the display ports will not be used.

Had to switch an OC config spoofing the MacPro1,1 board-id enhanced with the @khronokernel patches to get video both internally and externally back. Observed this only with AMD cards and only on the 11,1 currently.
 

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nandor690 said:
EDIT: I wanted to edit this and mention that I am using a compatible Bluetooth/wifi card.

Hello everyone! Iv got a question. On my Mac Pro 4,1 flashed to 5,1, ever since high Sierra I would have to run this in order for handoff and continuity and unlock with Apple Watch to work right.
sudo mount -uw /

sudo /usr/libexec/PlistBuddy -c "Set:Mac-F221BEC8:ContinuitySupport true" "/System/Library/Frameworks/IOBluetooth.framework/Versions/A/Resources/SystemParameters.plist"

sudo -E perl -pi -e "s/\Mac-00BE6ED71E35EB86/\Mac-F221BEC8\0\0\0\0\0\0\0\0/" /System/Library/Extensions/IO80211Family.kext/Contents/PlugIns/AirPortBrcm4360.kext/Contents/MacOS/AirPortBrcm4360

sudo touch /Library/Extensions

sudo kextcache -i /

But I can't run those commands on Big Sur. Mainly because it says the plugin for the airportbrcm4360 doesn't exist.

So, what iv been doing is installing Catalina first. Then running those commands to get handoff and everything working and then just updated to a version of Big Sur.

I ran into a new problem. The latest version of Big Sur breaks this.

My question is is how is everyone else with a Mac Pro 4,1 or 5,1 getting this to work.

THANK YOU for any help it is much appreciated
Click to expand...
See one of my earlier posts. I boot back into the big-sub-micropatcher recovery with default setters enabled. I mount -uw /Volumes/BigSur (or whatever your volume is.)
Then run usr/libexec/PlistBuddy -c "Set:Mac-F221BEC8:ContinuitySupport true" "/Volumes/BigSur/System/Library/Frameworks/IOBluetooth.framework/Versions/A/Resources/SystemParameters.plist"
Finally you need to run
bless --folder //System/Volumes/BigSur/System/Library/CoreServices --bootefi --create-snapshot
You can reenable SIP, but cannot seal the boot volume.
It fixes Watch Unlock and sets Continuity to true. But my handoff is not working correctly.
 
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haralds said:
See one of my earlier posts. I boot back into the big-sub-micropatcher recovery with default setters enabled. I mount -uw /Volumes/BigSur (or whatever your volume is.)
Then run usr/libexec/PlistBuddy -c "Set:Mac-F221BEC8:ContinuitySupport true" "/Volumes/BigSur/System/Library/Frameworks/IOBluetooth.framework/Versions/A/Resources/SystemParameters.plist"
Finally you need to run
bless --folder //System/Volumes/BigSur/System/Library/CoreServices --bootefi --create-snapshot
You can reenable SIP, but cannot seal the boot volume.
It fixes Watch Unlock and sets Continuity to true. But my handoff is not working correctly.
Click to expand...
Thanks!! I’ll try this out as soon as I get a chance. Thanks for the info
 
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grizzzlay said:
@dosdude1 has been fairly quiet about his own work, and honestly, with how much incredible work he's done over the past few years, it's fine if he can't do it and would prefer to focus on other things. I wouldn't hold my breath for a patcher as comprehensive as his. The micro patcher works well enough from what others say.
Click to expand...
Wish dosdue1 would give us an update.
 
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