macOS 11 Big Sur on Unsupported Macs Thread

[justperry]

Just Updated, twas a breeze, after every reboot I held the option key, then choose Opencore, after first start I choose reboot, after that just open core and my SSD where my normal working OS reside, after several reboots it worked.

The only thing I still have to do is fix my wifi on my 2012 Mac Mini, that shouldn't take long nor too much time.

Oh sh...., I messed up, haha lol.
I did the patch-kext.sh, that went well...I think...I didn't restart but also used zap-snapshots.sh, now I get the forbidden sign, how to recover from that, and how can I restart normally without each and every time having to hold the Option key-choose open core and then my OS SSD disk?

 

[sinbad21]

1. Download the zip.
2. Unzip.
3. Reboot into Installer.
4. Complete the stage1 installer.
5. Reboot to another macOS and replace and Overwrite Install Data/UpdateBundle/AssetData on the USB Installer.
6. Reboot to "macOS Installer" and the stage2 should continue with the new beta 10 packages.

Hope this is correct, if not please correct me.

Thanks to jackluke

Point 5, the exact path is macOS Install Data/UpdateBundle/AssetData and it is not on the USB Installer, but on the Data Volume of Big Sur.

 

[thielsa]

This was a super easy update for the Mac Pro 5.1. Used the full installer with Barry's USB installer tool. Worked very quickly. Thanks

 

[buckrock]

I have just released Big Sur Micropatcher v0.4.1.

This release fixes bugs in the 2011 --iMac Metal GPU option in patch-kexts.sh. Thanks again to Ausdauersportler for the code contribution. There are also some corrections and updates in the README.

Note that there are USB problems on many 2010 and earlier Macs, which are being tracked as GitHub issue #68. I plan to fix these problems in another release, perhaps later this week.

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

@BarryKN: Just to let you know, using micropatcher ver 0.4.1, I successfully installed BS b10 full install pkg over BS b9 on an external crucial SSD. Many thanks to you and all of the others who work so hard on this project.

My machine is a 15inch mid-2012 MBPro Retina 10,1 with 802.11ac upgrade. Both b9 and b10 were done with install-setvars.sh -e as you suggested for this machine. Other than the Step 7 '-e' option, I used no other variations and was done with install at end of Step 14.

As an aside, this is the first beta in a series that includes b3, 4, 5, 6, 9, and now 10 where I received a "System Extension Blocked" notice at end of the installation. It concerns Roxio (Toast Titanium 17.4) -- here it is:

 

[cjvegas]

So I am running a Mac Pro cMP 4,1 -> 5,1. I am running opencore 0.6.2. I originally upgraded from Catalina to Beta 6 by disabling SIP using recovery and terminal, then using the SMbios and VMM changes to the config.plist. I was using 0.5.9 then. I then just copied over the EFI folder with 0.5.9 and was running beta 6 for awhile. I then upgraded to 0.6.1 and just installed the Beta 9 update last week. No changes to the config.plist from 0.6.1. Then last night I upgraded to 0.6.2, I had to go in again and disable SIP in the recovery mode. I then just installed using the software upgrade beta 10. I have it running now. It took 2 goes for it to install on the partition. I had it where it took about an hour to download then 2 hours to "prepare" then it went to do the update or install, rebooted a couple of times and I ended back at beta 9. I did it the second time and it was then at beta 10. I haven't had any issues with bluetooth, wifi or iMessage. A few people have I believe. Its been all good and been using it all morning with no issues.

 

[jamezh2020]

Good Morning all ?
I´ve encountered a strange problem after trying to boot from USB with b10 patched with micropather 0.41.
When i´m trying to boot into the USB installer it is just booting to a grey screen, nothing else is happening. I´m currently on b9 patched with micropather 0.33. @Barry K. Nathan any idea what might cause this issue? I´ve followed all your steps carefully. I´m on a MacBook Pro 9,2 (Mid 2012)

 

[Jordillav22]

Good Morning all ?
I´ve encountered a strange problem after trying to boot from USB with b10 patched with micropather 0.41.
When i´m trying to boot into the USB installer the stick is just booting to a grey screen, nothing else is happening. I´m currently on b9 patched with micropather 0.33. @Barry K. Nathan any idea what might cause this issue? I´ve followed all your steps carefully.

the same happens to me.
iMac Late 2012

 

[Alex-Microsmeta]

Success! Updated Big Sur Beta 9 to Beta 10 on iMac 2013 (iMac14,1) OVER previous installation keeping all apps already installed, this time using only @ASentientBot hax3 patcher (thank you dear friend, never leave this forum ) from Catalina and without USB installer, in 35 minutes! No "just one minute (one hour) remainining" at Stage2 ...Auto-magically reboots without OpenCore while having breakfast!!! Now I'll wait micropatcher 0.4.x to update the problematic Mac mini 2010 (Macmini4,1)

 

[Alex-Microsmeta]

I feel exactly the same. Mac mini 2012 I want to wait Apple Silicon butwhen I got install Big Sur I felt that I won 1 or 2 years for the change

I’m interesting if you could explain better this words “without using set-vars.sh and patch-kexts.sh on USB Stick”. Now I’m in b9 and I’d wait till b10 installer or GM but I want to clarify which steps of tutorial could I avoid when update the system

I havn't applied set-vars.sh and kexts-patcher.sh on Terminal of USB pendrive, simply installed beta 9. But USB pendrive has micropatcher 0.4.0 installed from Catalina.

 

[buckrock]

Good Morning all ?
I´ve encountered a strange problem after trying to boot from USB with b10 patched with micropather 0.41.
When i´m trying to boot into the USB installer the stick is just booting to a grey screen, nothing else is happening. I´m currently on b9 patched with micropather 0.33. @Barry K. Nathan any idea what might cause this issue? I´ve followed all your steps carefully. I´m on a MacBook Pro 9,2 (Mid 2012)

Something like this came up back on page 186, #4631, involving a PRAM reset. Webg3 advised to try this:
--------From a USB Installer macOS Catalina or Mojave, open the Terminal and run the nvram commands:

nvram boot-args="-_no_compat_check"

 

[jamezh2020]

Something like this came up back on page 186, #4631, involving a PRAM reset. Webg3 advised to try this:
--------From a USB Installer macOS Catalina or Mojave, open the Terminal and run the nvram commands:

nvram boot-args="-_no_compat_check"

That´s strange as i didn´t perform a PRAM Reset recently. I can boot just fine into b9. It´s just that the installer is booting into a grey screen.

 

[Jordillav22]

That´s strange as i didn´t perform a PRAM Reset recently. I can boot just fine into b9. It´s just that the installer is booting into a grey screen.

Exactly, I'm also in beta 9, installed with the usb and everything was fine. With the beta 10, following the same steps, when booting from the USB, it seems that everything will be fine, but the apple screen with the loading bar suddenly turns into a gray screen. You can move the mouse but it doesn't happen from there. I have also tried the OTA update method, but it is not clear, I would have to see a video with the procedure. I tried, but I did something wrong and then I couldn't find the hard drive, I got a forbidden signal and I had to reinstall beta 9.

 

[amaze1499]

@Barry K. Nathan FYI: MBP 2012 9,2 : Updated beta 10 using 0.4.1 Installation went fine. Rebooted. System up and running. Patched Wifi - kernel panic. Unpatched. Rebooted again just fine. Patched with 0.3.4. - kernel panic. Tried with last good known patcher 0.3.1B with B9 but used it with B10 - same issue kernel panic. Unpatched. System starts up as expected. No Wifi.

I pulled the logs if needed.

 

[Alex-Microsmeta]

@Barry K. Nathan with 0.3.3, 0.4.0 and 0.4.1 BS B10 USB installer doesn't even load on Macmini 2010. After EFI booting and restart, it starts, reboot, then stucks to the dark-grey screen with the coloured mouse wheel rotating. it was working before with beta 9. Now installing BS B10 directly from Catalina with hax3 patcher, then I'll use your latest kext-patcher.

EDIT: No joy. It installs until stage 2, but then do not complete booting. Now remaking the B9 installer + micropatcher 0.3.3 to try to use kexts-patcher.sh to complete the installation. No way. I'm reinstalling Beta 9 + micropatcher 0.3.3 from scratch waiting for next @Barry K. Nathan & @jackluke fixes for Core 2 Duo Penryn.

 

[Ausdauersportler]

Using micro patcher 0.4.1 I tried to update another existing B9 installation to B10 using the "patched and replace B9->B10" method.

The installation constantly rebooted after stage2 (or in the middle) into my existing B9 login screen. Tried to manually select the macOS Installer on the EFI boot screen, but this did not work.

After deleting the B9 APFS disk partitions contents I could do a fresh install using the same "patched and replace" B9->B10" method and could patch the B10 system later using patch-kext.sh.

Of course I got the same error as before:

Creating new root snapshot.
Can't use last-sealed-snapshot or create-snapshot without --bootefi.

which I corrected by manually applying (before rebooting and after calling the patch-kext.sh script)

me@iMac ~ % sudo bless --folder /System/Volumes/Update/mnt1/System/Library/CoreServices --bootefi --create-snapshot
Password:
me@iMac ~ % sudo reboot

Q: Am I really the only one facing this error message when using patch-kext.sh with 0.4.1?

Note:
I could replace the files on the Big Sur disk from Catalina 10.15.7?!

 

[IbrahimFmc]

@Barry K. Nathan with 0.4.0 and 0.4.1 BS B10 USB installer doesn't even load on Macmini 2010. After EFI booting and restart, it starts, reboot, then stuck to the dark-grey screen with the coloured mouse wheel rotating. Now I unpatch it again and try with 0.3.3, 0.3.2... since it was working before with beta 9

I tried with 0.3.3 micro-patcher but also same problem , maybe something wrong with the beta 10 installer , I want to check another link to download beta 10

 

[Jeanphil]

Good Morning all ?
I´ve encountered a strange problem after trying to boot from USB with b10 patched with micropather 0.41.
When i´m trying to boot into the USB installer the stick is just booting to a grey screen, nothing else is happening. I´m currently on b9 patched with micropather 0.33. @Barry K. Nathan any idea what might cause this issue? I´ve followed all your steps carefully. I´m on a MacBook Pro 9,2 (Mid 2012)

Same issue for me
Mini 2011 b9 working, b10 with grey screen at install

 

[Franky1971]

I have the same problem with @jackluke patches to boot a core2duo system - The install stitch boots ready, but then gray image with mouse pointer iMac 9,1.
I can move the mouse, but nothing happens.

 

[Franky1971]

I have the same problem with @jackluke patches to boot a core2duo system - The install stitch boots ready, but then gray image with mouse pointer iMac 9,1.
I can move the mouse, but nothing happens.

Sorry Install Stick

 

[vendini]

Good Morning all ?
I´ve encountered a strange problem after trying to boot from USB with b10 patched with micropather 0.41.
When i´m trying to boot into the USB installer the stick is just booting to a grey screen, nothing else is happening. I´m currently on b9 patched with micropather 0.33. @Barry K. Nathan any idea what might cause this issue? I´ve followed all your steps carefully. I´m on a MacBook Pro 9,2 (Mid 2012)

Exact same issue here on iMac late 2012...

 

[thatsmeonlyme]

Good Morning all ?
I´ve encountered a strange problem after trying to boot from USB with b10 patched with micropather 0.41.
When i´m trying to boot into the USB installer it is just booting to a grey screen, nothing else is happening. I´m currently on b9 patched with micropather 0.33. @Barry K. Nathan any idea what might cause this issue? I´ve followed all your steps carefully. I´m on a MacBook Pro 9,2 (Mid 2012)

same here on cMP 5.1

 

[los0rio]

Same issue for me
Mini 2011 b9 working, b10 with grey screen at install

Same issue for me
iMac 2013 b9 working, b10 with grey screen at install

 

[iMac-Oldschool]

Installing Beta 10 on an iMac 13,1 - Late 2012.
Big Sur beta 9 had previously been installed successfully on an external USB HDD, including the WiFi patch.
Beta 10 installed on the same HDD using micropatcher from barrykn's GitHub webpage. After installation, the iMac was booted into Big Sur, without WiFi. As explained in step 13 of Barry's procedure, patch-kexts.sh was then run in Terminal under Big Sur and completed without error. Next step should then be to restart Big Sur with working WiFi. However, the system was no longer bootable and several attempts only produced a kp.
Any ideas?
I'm going to re-run the entire installation process, but that takes nearly 3 hours from memory stick to external HDD.

 

[tryglide]

Install beta 10.
For me, the language selection still works after the "Language Chooser".
However, after selecting "german" I get the gray screen!
After selecting "english" it continues as usual.
very strange ?

 

[ResEdit_ResEdit]

I confirm that installation does stop if you try to install in other language than English. Reset NVRAM (PRAM), then start from installer and choose English in case other language shows up as default.