macOS 11 Big Sur on Unsupported Macs Thread

[throwinrocks]

I used Ben Sovas Patcher.

What happened to the good ole days where you could just download DiskMaker X and be done with a perfect install and none of the hassle?

 

[iNitialE]

With patched-ur SUPPOR ALL Working Perfect

.
..
https://www.youtube.com/watch?v=XjDd8ARII9E

 

[Dilli]

Does your Metal GPU worked with a bootscreen without opencore ?

Have you tried a PRAM reset ?

@jackluke I still have your opencore usb inserted however, the bootscreen comes on with few script running in blink of an eye disappears and then the apple logo and progress bar leads to the login screen. This is how it has been running. I also found out that 1tb samsung internal ssd drive that I wanted to use for Bigsur keeps ejecting. So when I pressed option key i just cant see that drive.

Now I am wondering whether my ssd drive has gone bad because when imac heats up a bit it disappears and I cant see it in list in disk utility. So ordered another drive.

I had good success in making the bootable usb of big sur following Nathan's micro patcher and instructions.
but when i reached a point of installation of bigsur on my internal samsung ssd i got error on the screen any maybe the drive disappeared while loading the OS which may have caused this blank screen to appear.

Also can Bigsur be installed on any OS drive or it is to be installed over the Catalina as upgrade pls confirm.

 

[pbadilla]

I used Ben Sovas Patcher.

Same here. It's been working flawlessly since yesterday (with the exception of VMware Fusion).

Upgraded Catalina installed on an external SSD fwiw.

 

[TA 455SD]

Same here. It's been working flawlessly since yesterday (with the exception of VMware Fusion).

Upgraded Catalina installed on an external SSD fwiw.

Hi can you offer some insight , every time I run that patcher it errors out with no explanation of why it fails ?

 

[Dilli]

Hi can you offer some insight , every time I run that patcher it errors out with no explanation of why it fails ?

Use diskutility to format your drive in guid partition and then try.

 

[Jack Neill]

What happened to the good ole days where you could just download DiskMaker X and be done with a perfect install and none of the hassle?

Bens patcher was pretty easy..

 

[TA 455SD]

Use diskutility to format your drive in guid partition and then try.

From instruction it says to download just run the .dmg pathcer , it says after that prepare a usb drive , I thought I could just download the installer via the patch then create a usb drive to install with , when you say format the drive , you mean the usb drive intended to do the install ? I not sure which drive , it did not ask where to download the file , it just says it is downloading but does not show any progress bar to indicate it is downloading

 

[Jack Neill]

From instruction it says to download just run the .dmg pathcer , it says after that prepare a usb drive , I thought I could just download the installer via the patch then create a usb drive to install with , when you say format the drive , you mean the usb drive intended to do the install ? I not sure which drive , it did not ask where to download the file , it just says it is downloading but does not show any progress bar to indicate it is downloading

Yes, run from the DMG, it downloads to a hidden folder in your user folder. It will then make a USB drive you can boot from.

 

[TA 455SD]

Yes, run from the DMG, it downloads to a hidden folder in your user folder. It will then make a USB drive you can boot from.

getting it to download is the problem I 'm having , it always gives this error how do I get it to download ?

 

[0423MAC]

I am having trouble downloading via the patch , patch opens but then it gives error , have not seen a pics of what it should look like , don't know where to look for problem , can you help ?

It's tough to know what steps you are doing/not doing, but check this video out as I think it's one of the better step by step guides I have seen so far.

 

[TA 455SD]

It's tough to know what steps you are doing/not doing, but check this video out as I think it's one of the better step by step guides I have seen so far.

Thanks I will check that out , but the only steps I have taken is right click the .dmg and follow what it says , then it shows this that it is downloading , then the error message

 

[TA 455SD]

Thanks I will check that out , but the only steps I have taken is right click the .dmg and follow what it says , then it shows this that it is downloading , then the error message

seeing something I have not seen before , I can download anything from anywhere , except this patch , if I use the file I have I get the error shown , but all others including the one in the video I get this 0 bytes 0 bytes/sec when I do a search all I find is about video games , downloads stops at about 1MB , have no idea why

 

[Quackers]

Hi, thanks for all the work on this
I wonder if somebody could help me with a couple of problems please?

I have a mid 2012 rMBP and am attempting to dual boot Catalina and Big Sur.
I partitioned the drive and followed Justperry's guide.
Everything went perfectly and Big Sur is installed and bootable (though it took about 3 minutes to actually log in).
After a short time the fans start going quite quickly and it seems to ramp up alarmingly.
Any suggestions please?

I'm also without wifi as I'm a bit stuck with the last terminal instruction
Input "/Volume/Image\ Volumes/patch-kexts.sh /Volumes/***" and hit enter, when finished enter "reboot", both without the quotes.
*** Is your disk label

I'm unsure what to put in as the disk label (the partition name or the /dev/diskxxx bit and neither seem to work.
It keeps saying no such file or directory.
All instructions other than that worked perfectly and I'm a bit at a loss.
Could someone point me in the right direction please?
Many thanks!

 

[Dilli]

After got bigsur installed on my macbook Air 13 inch mid 2011 on running terminal command patch kexts.sh get following error

The operation couldnot be completed. (Kmutil.KMError error 25)
Kmutil failed. see above output for more information.
Patch-kexts.sh cannot continue

Please help what went wrong.? Okay I tried upgrading the previous installed patched mojave. so now I have used diskutility to clean the partition and do fresh install of BigSur. Lets hope I get the kexts patch worked this time and get the wifi going.

lesson learnt like @Barrykn mentioned dont install over previous patched volume but better to do a fresh install.

 

[Quackers]

Hi, thanks for all the work on this
I wonder if somebody could help me with a couple of problems please?

I have a mid 2012 rMBP and am attempting to dual boot Catalina and Big Sur.
I partitioned the drive and followed Justperry's guide.
Everything went perfectly and Big Sur is installed and bootable (though it took about 3 minutes to actually log in).
After a short time the fans start going quite quickly and it seems to ramp up alarmingly.
Any suggestions please?

I'm also without wifi as I'm a bit stuck with the last terminal instruction
Input "/Volume/Image\ Volumes/patch-kexts.sh /Volumes/***" and hit enter, when finished enter "reboot", both without the quotes.
*** Is your disk label

I'm unsure what to put in as the disk label (the partition name or the /dev/diskxxx bit and neither seem to work.
It keeps saying no such file or directory.
All instructions other than that worked perfectly and I'm a bit at a loss.
Could someone point me in the right direction please?
Many thanks!

Ok I ran the alternative kexts patching line from the terminal within Big Sur and it ran ok and then rebooted so I now have wifi
Fans may have settled down now too and login is quicker too
I think I'm sorted (for the moment).
Thanks for the how to 👍

 

[BeatCrazy]

Ok I ran the alternative kexts patching line from the terminal within Big Sur and it ran ok and then rebooted so I now have wifi
Fans may have settled down now too and login is quicker too
I think I'm sorted (for the moment).
Thanks for the how to 👍

I seem to be having the exact (?) problem, and the same step.

Homefolder@my-iMac ~ % /Volumes/Install\ macOS\ Big\ Sur/remount-sysvol.sh
Password:/

Volume appears to have a Big Sur installation (build 20B29). Continuing.
Volume is mounted from device: /dev/disk1s6s1
Mounted device is a snapshot. Will now mount underlying volume
from device /dev/disk1s6 at temporary mountpoint:
/System/Volumes/Update/mnt1

mount_apfs: volume could not be mounted: Resource busy
mount: /System/Volumes/Update/mnt1 failed with 75
Mounting underlying volume failed. Cannot proceed.

 

[Quackers]

I seem to be having the exact (?) problem, and the same step.

That's a bit above my pay grade. I'm very rusty in the terminal

 

[Dilli]

From instruction it says to download just run the .dmg pathcer , it says after that prepare a usb drive , I thought I could just download the installer via the patch then create a usb drive to install with , when you say format the drive , you mean the usb drive intended to do the install ? I not sure which drive , it did not ask where to download the file , it just says it is downloading but does not show any progress bar to indicate it is downloading

First format your usb drive using disk utility and then use patcher to make your installer.

 

[Dilli]

Hi, thanks for all the work on this
I wonder if somebody could help me with a couple of problems please?

I have a mid 2012 rMBP and am attempting to dual boot Catalina and Big Sur.
I partitioned the drive and followed Justperry's guide.
Everything went perfectly and Big Sur is installed and bootable (though it took about 3 minutes to actually log in).
After a short time the fans start going quite quickly and it seems to ramp up alarmingly.
Any suggestions please?

I'm also without wifi as I'm a bit stuck with the last terminal instruction
Input "/Volume/Image\ Volumes/patch-kexts.sh /Volumes/***" and hit enter, when finished enter "reboot", both without the quotes.
*** Is your disk label

I'm unsure what to put in as the disk label (the partition name or the /dev/diskxxx bit and neither seem to work.
It keeps saying no such file or directory.
All instructions other than that worked perfectly and I'm a bit at a loss.
Could someone point me in the right direction please?
Many thanks!

Disk label is your volume that you installed big sur in. Also use /Volume/Image\ Volumes/patch-kexts.sh /Volumes/ <<here you enter your disk name that you installed bigsur in and then press enter

 

[thatsmeonlyme]

Disk label is your volume that you installed big sur in.

When the fans go to higher rpms this belongs to to mds worker and mds stores renewing spotlight indexing. Maybe some minutes later it will normalize. You can control in system preferences / spotlight what you want to be indexed. The less you want the shorter indexing will go on. If the process does not stop make a restart and do not index anything by spotlight. When the machine is working normally again you can add spotlight searches again. I had the same problem on one of my two mid 2012 mbp‘s. For your other problem you should read @Barry K. Nathan ‘s readme file and follow exactly. Remember that the patching procedure commands are case sensitive.

 

[Dilli]

Ok I ran the alternative kexts patching line from the terminal within Big Sur and it ran ok and then rebooted so I now have wifi
Fans may have settled down now too and login is quicker too
I think I'm sorted (for the moment).
Thanks for the how to 👍

Cool.

 

[thatsmeonlyme]

After installing BS final on my cMP 5.1 and my two MBP 13“ Mid 2012 I want to thank to coders who made this possible.
I admit that also for me it was a time of learning to all doing via terminal but this was also a further step in handling my machines. Also herefore Thanks. Whole life depends on learning new things every day and getting used to that.

 

[buckrock]

SUCatalog now shows a second Big Sur 11.0.1 final added 2020-11-14:

http://swcdn.apple.com/content/down...n9y64jk2jemzuy1oio5m85hm/InstallAssistant.pkg

Description in Terminal:

1. macOS Big Sur 11.0.1 (20B29)
   - 001-79699::1 - Added 2020-11-14 01:58:00
2. macOS Big Sur 11.0.1 (20B29)
   - 001-79699 - Added 2020-11-12 18:00:08

 

[jackluke]

thanks for the prompt reply. i thought i messed up so bad so i've reinstalled from scratch. currently going through.

how should i process with the hidden wifi issue? what do you recommend?

thanks

Join a hidden Wi-Fi network on Mac

Join a Wi-Fi network from your Mac by entering the name and password for the Wi-Fi network.

support.apple.com

Otherwise you should patch kext using the stock Mojave IO80211Family.kext or use the stock BigSur kext , depends which Card Type do you have :
system_profiler -detailLevel mini | grep "Card Type"