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macOS 10.15 Catalina on Unsupported Macs

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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.
unilock said:
It worked! Notably, I had to remount / as writable (`sudo mount -uw /; killall Finder`) before the script functioned properly.
Unfortunately, I'm now facing another issue: every time I turn "Automatically adjust brightness" off, it automatically turns itself back on a few moments later. This wouldn't be as much of a problem if my MacBook didn't constantly think it was in the dark, causing it to dim the display.
Click to expand...
Strange. Have not noticed that. Will test again with that checkmark off.
Apropos script: It tends to throw a lot of "cannot overwrite..." messages, but always worked as intended anyway.
You might cure the situation on your ´book by aid of some 3rd party tool like "brightness slider" or similar. They sometimes work even before patching with the CCFL framework, and always afterwards for sure.
 
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I have now tried this three times and is now on my fourth fresh install.

The patch installs, and then the system breaks. The first two times I didn't remount /, the third time I did. No difference. After running the patch no application will start. No error messages or anything, just no response when clicking on any application in the dock or anywhere else. The system itself is still responsive. Whatever is open can be moved around and interacted with to some extent. Trying to shut down or reboot just leads to an empty screen with the desktop wallpaper and nothing else, and it's stuck there. Trying to boot has it stuck on the boot screen.

I downloaded Catalina today, so maybe something has chanced and the patch needs an update...

Any ideas?

Here's the cli output:
erik@MacBook-Pro release-213013-091019 % sudo mount -uw /; killall Finder
erik@MacBook-Pro release-213013-091019 % sudo ./BlueSky.sh
+ System environment check passed.
+ Root permissions check passed.
+ System Integrity Protection status check passed.
+ Resources check passed.
+ Internet connectivity check passed.
/ What volume would you like to use?
/ Input a volume name.
/ Install
/ Mac
/ Namnlös
/ Mac
+ Checked system version.
+ Prepared local resources.
+ System support check passed.
/ What operation would you like to run?
/ Input an operation number.
/ 1 - Install SkyLight patch
/ 2 - Remove SkyLight patch
/ 3 - Install HIToolbox patch
/ 4 - Remove HIToolbox patch
/ 5 - Install both patches
/ 6 - Remove both patches
/ 5
+ Backed up current SkyLight.
> Installing SkyLight patch.
+ Installed SkyLight patch.
> Backing up new SkyLight.
cp: /Volumes/Mac/System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/+ Backed up new SkyLight.
+ Backed up current HIToolbox.
> Installing HIToolbox patch.
+ Installed HIToolbox patch.
> Backing up new HIToolbox.
cp: /Volumes/Mac/System/Library/Frameworks/Carbon.framework/Frameworks/HIToolbox+ Backed up new HIToolbox.
+ Repaired permissions.
+ Removed temporary files.
dyld: dependent dylib '/System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/SkyLightOriginal' not found for '/System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/SkyLight', tried but didn't find: '/System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/SkyLightOriginal' '/usr/lib/SkyLightOriginal'
/ Thank you for using BlueSky.
erik@MacBook-Pro release-213013-091019 % sudo ./BlueSky.sh
sudo: unable to initialize PAM: No such file or directory
erik@MacBook-Pro release-213013-091019 %
Click to expand...
 
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user1234 said:
I have now tried this three times and is now on my fourth fresh install.

The patch installs, and then the system breaks. The first two times I didn't remount /, the third time I did. No difference. After running the patch no application will start. No error messages or anything, just no response when clicking on any application in the dock or anywhere else. The system itself is still responsive. Whatever is open can be moved around and interacted with to some extent. Trying to shut down or reboot just leads to an empty screen with the desktop wallpaper and nothing else, and it's stuck there. Trying to boot has it stuck on the boot screen.

I downloaded Catalina today, so maybe something has chanced and the patch needs an update...

Any ideas?

Here's the cli output:
Click to expand...
Did you try option 5 which is to install both patches
 
My brother is attempting to install Catalina on a Late 2011 MBP.

He gets a successful installation but AirDrop is missing. We have tried a couple of methods in some previous posts but nothing worked.

Also what would be the chances of having Handoff working on this device? I installed a 2012 MBP Airport card in it when I owned it; so it has the hardware etc.
 
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Simon89 said:
My brother is attempting to install Catalina on a Late 2011 MBP.

He gets a successful installation but AirDrop is missing. We have tried a couple of methods in some previous posts but nothing worked.

Also what would be the chances of having Handoff working on this device? I installed a 2012 MBP Airport card in it when I owned it; so it has the hardware etc.
Click to expand...

Have you already tried here? : https://forums.macrumors.com/threads/macos-10-15-catalina-on-unsupported-macs.2183772/post-27891116
 
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An update on the install of 19A603 to my MacPro 5.1. After a lot of experimentation and frustration, I found that the install that I was installing over was damaged and the install would either not proceed and just reboot or error out. I reverted to an archived version of my OS taken after the install of the original release and was able to install over that, without any issues. I am typing this from the updated OS. Thanks to all!
 
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Ludacrisvp said:
Also, I'm pretty sure you can remove DisableLibraryValidation from /Library/Extensions/ now as we won't be needing that for any of the SSE4.2 stuff anymore.
Click to expand...
Is there a version of DisableLibraryValidation that won't cause the new Music.app to crash? (MacPro3,1, Catalina).
 
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joevt said:
Is there a version of DisableLibraryValidation that won't cause the new Music.app to crash? (MacPro3,1, Catalina).
Click to expand...
I had not heard of it causing crashes.
DLV.kext was only needed for usage of the netkas metal driver patch to my knowledge which is no longer needed now that AAAmouSSE.kext is available.
 
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is it possible to boot unsupported mac in safe mode? Cause after hearing first chime sound I click to shift button but after APFS log I got prohibited sign.
 
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Larsvonhier said:
Strange. Have not noticed that. Will test again with that checkmark off.
You might cure the situation on your ´book by aid of some 3rd party tool like "brightness slider" or similar. They sometimes work even before patching with the CCFL framework, and always afterwards for sure.
Click to expand...
I tried using an app called "Brightness Slider" (from the MAS) to adjust the brightness, but it didn't make any difference.
Changing the brightness isn't inherently a problem; rather, the brightness automatically decreases a few moments after I increase it.
I've recorded a video of the problem, and uploaded it here. Note that the brightness did increase when I adjusted the slider accordingly, but it decreased automatically shortly afterward.
 
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unilock said:
I tried using an app called "Brightness Slider" (from the MAS) to adjust the brightness, but it didn't make any difference.
Changing the brightness isn't inherently a problem; rather, the brightness automatically decreases a few moments after I increase it.
I've recorded a video of the problem, and uploaded it here. Note that the brightness did increase when I adjusted the slider accordingly, but it decreased automatically shortly afterward.
Click to expand...
Ok, so I installed the 10.15.0 build (18A602) on a CCFL based MacBook 5,2.
After fixing the trackpad/function key behaviour with post install patch tool from dosdude for this ´book, there still was the predictable backlight dim-freeze (no reaction to F1/F2 other than the overlay symbol).
So I r/w mounted the system volume and ran the 10.14.2 CCFL patch. Reboot - voila, it works.
The difference to the A1261 (MBP4,1) seems to be that there is no "adjust backlight to ambient light" option, thus no snapback. Perfect.
Another idea: Is it possible that your MBP4,1 has an exchanged LCD panel (i.e. after a repair)? Could deliver wrong/unsuitable EDIF data to the system in such a case.
As my main office computer is also a MPB4,1 (running Mojave), I´m a bit reluctant to experiment with it now, but if I have some time to spare I can try Catalina and the patches from an external drive sometime soon to see what the problem might be... stay tuned!
 
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Larsvonhier said:
Ok, so I installed the 10.15.0 build (18A602) on a CCFL based MacBook 5,2.
After fixing the trackpad/function key behaviour with post install patch tool from dosdude for this ´book, there still was the predictable backlight dim-freeze (no reaction to F1/F2 other than the overlay symbol).
So I r/w mounted the system volume and ran the 10.14.2 CCFL patch. Reboot - voila, it works.
The difference to the A1261 (MBP4,1) seems to be that there is no "adjust backlight to ambient light" option, thus no snapback. Perfect.
Another idea: Is it possible that your MBP4,1 has an exchanged LCD panel (i.e. after a repair)? Could deliver wrong/unsuitable EDIF data to the system in such a case.
As my main office computer is also a MPB4,1 (running Mojave), I´m a bit r
Screen Shot 2019-10-22 at 2.51.49 PM.png
eluctant to experiment with it now, but if I have some time to spare I can try Catalina and the patches from an external drive sometime soon to see what the problem might be... stay tuned!
Click to expand...
I was running the brightness slider on my MacBook 5,2 I do know for it to work properly I had to leave the brightness in display settings at full and not put the bright slider at full otherwise it does dim and and you can add shortcut keys like F1-F2 to toggle up or down and check the box to remember the last setting at login
 
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TimothyR734 said:
go to page 234 posts 5838 and 5841 and try the method I use to install BlueSky
Click to expand...

That didn't work. Same issue. What did work was replacing those files using the terminal in the recovery environment (booting from the install disk). Thanks! 👍

Now onto getting the trackpad to appear in settings so I can change trackpad settings. Last install it worked, now it complains that it can't find a bluetooth trackpad. It also defaulted to UK English this time instead of English. Weird.
 
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Larsvonhier said:
Another idea: Is it possible that your MBP4,1 has an exchanged LCD panel (i.e. after a repair)? Could deliver wrong/unsuitable EDIF data to the system in such a case.
Click to expand...
I don't believe that's the issue, as on El Capitan (on an external HDD), automatic brightness adjustment based on ambient light works without issue -- and I can reliably disable it, too. I will admit, however, that my MacBook's screen is suspiciously pristine, considering all the dents on the lower casing of the machine... (I had bought the MacBook used, very recently.)

Larsvonhier said:
As my main office computer is also a MPB4,1 (running Mojave), I´m a bit reluctant to experiment with it now, but if I have some time to spare I can try Catalina and the patches from an external drive sometime soon to see what the problem might be... stay tuned!
Click to expand...
If you do end up trying Catalina on your MBP4,1, do tell if you're able to get the patched USB installer to work, as that was an issue I was experiencing earlier (and never did completely resolve).
 
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