macOS 10.15 Catalina on Unsupported Macs

[TimonJey]

Hi, I had no problem with Chrome on my MBP 8,1. This morning I decide to instal the supplemental update for 10.15.5.
I closed chrome before. Tryed to reopened it (don't ask me why ?) and Nothing happened. Then I installed the supplemental update. But chrome is dead. Itryed to re instal it. But nothing. Any idea ?

 

[DeLacy]

If you want to update to 10.15.6 Beta 1 If you have a spare usb about 1 gb format it extended-journaled then unzip the USBOppenCoreAPFSloader and run and follow the instructions. Then open your terminal-unzip the swupatch and place it in the terminal-run it then check for the update in System Preferences wait close and reopen your terminal once the update is at least 10percent download-I usually wait until it nearly finished and place the catalinaswufix5amfi.command in the terminal run it. Once the update shows the black screen and progress bar a bit into it it will restart your Mac hold your option button select your USBOpenCoreAPFSloader in the select menu choose macOS install this will install the update then once it restarts boot into your Catalina patcher and apply the post install patches. If for some reason you have issues as the USBOpenCoreAPFS will add "amfi_get_out_of-my-way" into the boot-args run nvram-p to verify in the terminal restart your Mac and do a pram reset command-option-P and R this should move the amfi-get-out-of-my -way

Oh Boy! I do love a challenge! I will keep you posted. Thank you for your help.

 

[Peatwheat]

The HD is solid state.
Would it be possible to somehow prepare the Catalina installer from windows so I don't have to install High Sierra just to make the installer?

The HD is solid state.
Would it be possible to somehow prepare the Catalina installer from windows so I don't have to install High Sierra just to make the installer?

I'm unaware of a procedure for creating a usb installer from windows for unsupported Macs. One usually needs a Mac to fix a Mac. I only suggest installing HS because I consistently have problems creating an installer from anything more advanced. I've seen a free disk space issue with APFS in the past during the initial HS roll outs. I'm fairly sure HPFS is no longer an option with Catalina. This is the only reason I suggest a clean install on a blank drive.

 

[jhowarth]

Hi Guys,

could someone please give me some advice how i can Update from Catalina 10.15.5 (19F96) to 10.15.5 (10F101)? In other Words: How can i install the latest Catalina Supplemental Update? After using the CatalinaOTAswufix.app i can see the Supplemental Update under Settings but after clicking on Install my iMac 8,1 (Early 2008) is rebooting and showing the white Progress Bar in a Black Screen for a few Seconds and then reboots again. The Supplemental Update is still showing under Settings and therefore was not installed. What am i doing wrong please? Thanks in advance.

Download the Catalina 10.15.5 full installer again with Catalina Patcher 1.4.4 and use that to recreate the patched usb installer. Just make sure that the downloaded copy of the 'Install macOS Catalina' application shows version 15.5.02 in GetInfo which indicates it has the Supplemental Update.

 

[ASentientBot]

Thank you ASentientBot. It helped me - in exercising hopper disassembler and codesign again after a quite a while. Successfully modified your SkyLightOriginal in S/L/PrivateFrameworks on my 10.15.6b1 testing disk.

(Didn't recognise desktop tinting effects also with unmodified SkyLightOriginal though, even with an awfully red desktop, on the LCD display of my MBP5,2 (dark mode, transparency not reduced in system settings->display, 24bit colour depth. Eyes too old...?). I do recognise tinting on a MBP11,1 13“ Retina display, also 24bit.)

You're correct, desktop tinting doesn't seem to work on non-Metal systems. I fixed this at the request of a couple people in this community who also have supported Macs, but I suppose this was the wrong thread to post about it. Sorry about that.

 

[B_ctrim]

Hi, I had no problem with Chrome on my MBP 8,1. This morning I decide to instal the supplemental update for 10.15.5.
I closed chrome before. Tryed to reopened it (don't ask me why ?) and Nothing happened. Then I installed the supplemental update. But chrome is dead. Itryed to re instal it. But nothing. Any idea ?

Go into ~/Library/Application Support/Google and then right click and choose "Get Info" for the Chrome folder. then click on the lock on the bottom right and enter the password, after that, go under the "sharing and permissions" section and changed the "staff" group from "Read only" to "Read & Write" after that you will be able to relaunch Chrome.

 

[TimonJey]

Thx !! that works now. perfect. I really don't know why it happen but you find the solution thx

 

[hvds]

You're correct, desktop tinting doesn't seem to work on non-Metal systems. I fixed this at the request of a couple people in this community who also have supported Macs, but I suppose this was the wrong thread to post about it. Sorry about that.

I actually liked to try your suggested patch, and I'm happy that I succeeded. This was my only aim.

 

[jon66]

Does it work on MBP 8.2 Core i7 2.2 early 2011?

 

[Peatwheat]

MVC Europe repair for 5700XT as sent to me via eBay messaging:

Link from my Google Drive: AMDRadeonX6000HWServices.kext

Same file downloaded from MVC Europe

1. Disable SIP: https://www.macworld.co.uk/how-to/m...system-integrity-protection-rootless-3638975/
2. Boot macOS 10.15.5 in safe mode by holding Shift on boot.
3. Open Terminal and type a following commands:
sudo mount -uw /
sudo mv /System/Library/Extensions/AMDRadeonX6000HWServices.kext /Users/YourUserName/Desktop (replace YourUserName with your user name)
sudo cp -a /Path/Where/You/Downloaded/Kext/From/10.15.4/AMDRadeonX6000HWServices.kext /System/Library/Extensions/ (replace /Path/Where/You/Downloaded/Kext/From/10.15.4/ with your own patch)
sudo chown -R 0:0 /System/Library/Extensions/AMDRadeonX6000HWServices.kext
sudo chmod -R 755 /System/Library/Extensions/AMDRadeonX6000HWServices.kext
sudo xattr -r -d com.apple.quarantine /System/Library/Extensions/AMDRadeonX6000HWServices.kext
sudo touch /System/Library/Extensions/AMDRadeonX6000HWServices.kext /System/Library/Extensions

4. Now reboot, you can reenable SIP (if it was enabled before) once your card starts working, as the kext we copied is an original unmodified kext from Apple.

I haven't tested this at all yet. I will after I put the Mac Pro back in to 10.15.5 and then confirm

I can confirm that this seems to make the card work flawlessly in macOS Catalina 10.15.5.

 

[kjrulezhard]

Hi. I've recovered "partially" normal boot screen behavior. After install a fresh copy of Catalina 10.15.4 I could only boot correctly by "Option" key. To try to understand boot process I booted Catalina with "Command+V" in verbose mode. I realized that before boot process appeared a small screen with symbols...like some some "EFI boot code". (in previous Catalina version I never saw this screen). So I thought that maybe as I modified EFI to get boot screen in my iMac, the EFI was corrupted. So, I restored my EFI to original state and I also flashed my GTX to beta3 by @Nick [D]vB .

My surprise was that after 4 o 5 seconds after chime sound the display turn on and Catalina started. I got the same "EFI boot code" screen over apple logo, but then the Catalina started.
I will try to record some video to explain this behaviour.


Could be that this update modify EFI bios? that is possible?

I'm having more or less the exact same issue. I installed a GTX 770m and flashed it to Kepler beta 3 by @Nick [D]vB and now I can only boot to Catalina after holding "option" and selecting the mac os boot partition. To be clear, after flashing i was able to boot to High Sierra without having to hold "option."

 

[atomizasser]

I'm having more or less the exact same issue. I installed a GTX 770m and flashed it to Kepler beta 3 by @Nick [D]vB and now I can only boot to Catalina after holding "option" and selecting the mac os boot partition. To be clear, after flashing i was able to boot to High Sierra without having to hold "option."

You have 2 options to solve it:
1. Install opencore following this guide.
2. Patching this kext
I can confirm that two options worked. The second one cause some boot delay.

take a look at first post in this thread

 

[pauclaude]

Hi,
I've installed Catalina on an iMac 12.1, in a new partition of my internal SSD, with the latest @dosdude1 patcher.
Everything works fine, except the external monitor -through displayport- is not recognized at all (in High Sierra, on the other partition, it works without problems).
I've tried many tips, but it simply doesn't appears in System Preferences or in Mac infos.
Can someone help me?

 

[LuisN]

Hi,
I've installed Catalina on an iMac 12.1, in a new partition of my internal SSD, with the latest @dosdude1 patcher.
Everything works fine, except the external monitor -displayport- is not recognized at all (in High Sierra, on the other partition, it works without problems).
I've tried many tips, but it simply doesn't appears in System Preferences or in Mac infos.
Can someone help me?

Did you upgrade your graphic card? dosdude1's patch doesn't support accelerated graphics in HD 6xxx as stated in first post of this thread

 

[lotfix]

issue with Camera/Microphone Security & Privacy Permissions

Please, can you help me to solve this problem, I can't use applications like skype, zom and even hangouts with the firefox browser doesn't work. However hangouts with safari works very well I don't have the issue with permissions for Camera/Microphone.

PS: Refresh install 10.15.5

thank you

 

[dosdude1]

issue with Camera/Microphone Security & Privacy Permissions

Please, can you help me to solve this problem, I can't use applications like skype, zom and even hangouts with the firefox browser doesn't work. However hangouts with safari works very well I don't have the issue with permissions for Camera/Microphone.

PS: Refresh install 10.15.5

thank you

Make sure you are NOT using the "amfi_get_out_of_my_way=1" boot argument in either NVRAM or boot.plist.

 

[trifero]

Really Catalina is a hard version to work on unsupported machines.

 

[TimothyR734]

Reset your PRAM command-option-P and R while booting up will remove the AMFI get out of my way

 

[pauclaude]

Did you upgrade your graphic card? dosdude1's patch doesn't support accelerated graphics in HD 6xxx as stated in first post of this thread

No, but Catalina runs fine in any case on my iMac. I only need it to work on latest versions of Apple apps (Pages, etc.), so I don't need special graphic features.
The big problem is only that my external monitor is disappeared.

 

[LuisN]

No, but Catalina runs fine in any case on my iMac. I only need it to work on latest versions of Apple apps (Pages, etc.), so I don't need special graphic features.
The big problem is only that my external monitor is disappeared.

If macOS doesn't load a graphics driver, which is the case in your configuration, It isn't aware of any external ports or monitors.

 

[trifero]

No, but Catalina runs fine in any case on my iMac. I only need it to work on latest versions of Apple apps (Pages, etc.), so I don't need special graphic features.
The big problem is only that my external monitor is disappeared.

"I only…" can be a huge work.

 

[pauclaude]

If macOS doesn't load a graphics driver, which is the case in your configuration, It isn't aware of any external ports or monitors.

I think the graphic card works somewhat, because with Mojave the external monitor was detected (see attached image). In the Mac infos, moreover, the graphics card is regularly mentioned.

 

[_Julian_]

Hi again Guys,
i have installed the latest macOS Catalina 10.15.5 (with Supplemental Update) installed on an iMac 8,1 (Early 2008). I use the Original integrated Broadcom BCM43xx 1.0 (5.10.131.36.16) WiFi-Card with 5GHz Network in combination with a Fritz!Box 7590 but the iMac loses the WLAN-Connection every few Minutes. Everything else is working very good. Maybe anyone can give me a little hint to fix that? Thanks in advance.

(Many Thanks to @dosdude1 and all the others involved People for the good and hard work by the way.)

 

[jhowarth]

Reset your PRAM command-option-P and R while booting up will remove the AMFI get out of my way

Or just execute 'sudo nvram -d amfi_get_out_of_my_way' from a Terminal.

 

[joergz]

I think the graphic card works somewhat, because with Mojave the external monitor was detected (see attached image). In the Mac infos, moreover, the graphics card is regularly mentioned.

I thought Displayport is unsupported in general in Catalina.