macOS 11 Big Sur on Unsupported Macs Thread

[maxsp97]

Thank you to jackluke again, beta 3 for cMP mid 2012 installed. No WIFI and I don't needed.

 

[Helghast59]

So i have to write nvram boot-args="-no_compat_check amfi_get_out_of_my_way=0x1" ?

Yes, but i’m not quite sure about syntaxis (not remember). Check on first pages here or google.

 

[Maclinux]

MBP 9.2 mid 2012 (not retina) - I have reinstalled beta 3. Now it does not start with Kernel Panic ... I do not have WIFI although it does appear among the network options. Any suggestion? Thank you very much for the help.

 

[ricoc90]

Just updated my late 2012 Mac mini to beta 3. As expected no working WiFi after installation but just like Beta 2 all I had to do was to boot into the USB installer, mount the Big Sur volume with write access, copy over High Sierra's IO80211Family.kext and run the following commands:

kmutil install --volume-root /Volumes/volume_name --update-all --force

/Volumes/volume_name/usr/sbin/kcditto

bless --folder /Volumes/volume_name/System/Library/CoreServices --bootefi --create-snapshot

Edit: Note that I'm still using @ASentientBot's hax to prevent sealing of the volume.

 

[DeathBase]

Fixed, cable didn't work, but WiFi did. To put the password you have to take into account that the keyboard layout is American ... ???

Hey, Did you try execute the Step 9 at the link https://github.com/barrykn/big-sur-micropatcher ???

 

[ricoc90]

MBP 9.2 mid 2012 (not retina) - I have reinstalled beta 3. Now it does not start with Kernel Panic ... I do not have WIFI although it does appear among the network options. Any suggestion? Thank you very much for the help.

The kexts are being overwritten when you're updating the OS. Re-do whatever you did to get working WiFi in beta 2.?

 

[Maclinux]

The kexts are being overwritten when you're updating the OS. Re-do whatever you did to get working WiFi in beta 2.?

By doing the same as in Beta 1 and Beta 2, the computer does not start normally. A Kernel Panic appears almost in all the beginnings and when it finally manages to start it continues without WiFi or AirDrop

Hey, Did you try execute the Step 9 at the link https://github.com/barrykn/big-sur-micropatcher ???

I have not managed to fix the WiFi with this step ... Thanks anyway.

 

[nandor690]

link here https://parrotgeek.com/bigsur/

Does that tool still work on beta 2 and 3? I thought it only worked on the 1st beta.

 

[Vital L]

ricoc90 How did you update it? Or you reinstall?

 

[TimothyR734]

Does that tool still work on beta 2 and 3? I thought it only worked on the 1st beta.

I’m try his updated version for beta 2 on beta 3 will let you know

 

[PiggyGamingYT3]

Whenever I try to log in to macOS Big Sur on my MBP8,1, my system crashes and keeps crashing. I used the Big Sur Micropatcher on beta 2. I log on, the screen gets a little brighter, and it freezes and logs me off. Anyone know how to fix this?

 

[Larsvonhier]

Whenever I try to log in to macOS Big Sur on my MBP8,1, my system crashes and keeps crashing. I used the Big Sur Micropatcher on beta 2. I log on, the screen gets a little brighter, and it freezes and logs me off. Anyone know how to fix this?

reduce transparency?

 

[PiggyGamingYT3]

reduce transparency?

i can’t do that, it crashes immediately

 

[Larsvonhier]

i can’t do that, it crashes immediately

There is some .plist file that can be edited to set it - search thread here...

 

[TimothyR734]

https://parrotgeek.com/bigsur/ I install macOS Big Sur Beta 3 using parrotgeek's method then running Barry's micro-archer.sh in the terminal but no wifi no ethernet as they changed things up for me usually after the 29 min install (ssd) it it followed by a back screen apple log and progress bar then a grey screen apple logo and progress and during the grey screen once it reaches a bit past the halfway mark you power off your Mac to prevent sealing. But for me I got 2 balack screens and progress bar on the first black screen it took just a s long as the 29 min install. The second black screen and progress bar went quick and then a complete grey screen for a few moments the the setup screen

 

[Alex-Microsmeta]

BS BETA 3 on Macmini 2010: Now the USB installer must be APFS. Installing using @ASentientBot hax3 on a 16 GB APFS Hardisk Paritition. Then I will launch installer from @jackluke OpenCoreLoader3. Finally I'll patch Beta 3 with fixes 1-2-4 over old Beta 1 USB initialized hard disk installation.

 

[jackluke]

Thank you to jackluke again, beta 3 for cMP mid 2012 installed. No WIFI and I don't needed.

Do you used "prelinkedkernel fix" ? Which version (because I made many different) ?

I have not download and installed yet the beta 3 , so will test this later.
[automerge]1595487101[/automerge]

Whenever I try to log in to macOS Big Sur on my MBP8,1, my system crashes and keeps crashing. I used the Big Sur Micropatcher on beta 2. I log on, the screen gets a little brighter, and it freezes and logs me off. Anyone know how to fix this?

Try this: https://forums.macrumors.com/thread...unsupported-macs-thread.2242172/post-28686355

 

[maxsp97]

Do you used "prelinkedkernel fix" ? Which version (because I made many different) ?

The version for beta 1 still working fine for cMP mid 2012.

 

[jackluke]

Beta 3 installed, but without Wi-Fi or AirDrop. When trying the @jackluke solution for beta 1 and 2 the mac stops at startup and restarts a few times and boots without WiFi ... Any solution?

After beta 3 installation, have you followed these required steps (especially csrutil disable):

macOS 11 Big Sur on Unsupported Macs Thread

I just made a new prelinkedkernel that should work for any Ivy Bridge Mac, and it should enable Sound, Mic, Wifi and AirDrop. To properly use this you need possibly a vanilla BigSur installation (without any patches), and booting from an USB BigSur Installer (or its macOS Recovery CMD+R) open a...

forums.macrumors.com

edit:
This need an update for Big Sur Beta 3, so don't use it yet.

 

[viettanium]

Mac mini Late 2012
Successfully installed Beta 3 follow this guide:

GitHub - barrykn/big-sur-micropatcher: A primitive USB patcher for installing macOS Big Sur on unsupported Macs

A primitive USB patcher for installing macOS Big Sur on unsupported Macs - barrykn/big-sur-micropatcher

github.com

step 9 done and have full Wi-Fi working!

 

[TimothyR734]

Mac mini Late 2012
Successfully installed Beta 3 follow this guide:

GitHub - barrykn/big-sur-micropatcher: A primitive USB patcher for installing macOS Big Sur on unsupported Macs

A primitive USB patcher for installing macOS Big Sur on unsupported Macs - barrykn/big-sur-micropatcher

github.com

step 9 done and have full Wi-Fi working!

View attachment 936612

Do you have a working WIFi

 

[ricoc90]

ricoc90 How did you update it? Or you reinstall?

I've downloaded Beta 3 on Catalina, ran the installer app from there using ASentientBot's hax app (link) and selected my Big Sur volume as the target. It updated fine.

 

[rumormiller]

I've downloaded Beta 3 on Catalina, ran the installer app from there using ASentientBot's hax app (link) and selected my Big Sur volume as the target. It updated fine.

Thanks, just to make sure did it keep all your settings and stuff from beta 2?

 

[ricoc90]

Thanks, just to make sure did it keep all your settings and stuff from beta 2?

Yes it did

 

[viettanium]

Do you have a working WIFi

i mentioned Wi-Fi above