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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.
makra

makra

macrumors 6502
Dec 29, 2020
370
385
Northern Germany
Squatting Hen said:
Just checking…the only “important” software updates are the Security Updates at this point correct? Those probably won’t happen very often either.

Once they stop, is there truly any concerns about continuing to use Catalina? Say I stick with edge or chrome, and use the internet safely.
Click to expand...
How about installing OCLP (you can just bypass it when starting your patched Catalina) and creating a new volume with Big Sur, where you can test everything you're planning to use? It's easy to delete both of them again. Then you can try Big Sur. It works really well on my 2011 MBP - with the restrictions that are described in the first post of that thread and on the official OCLP site.
 
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K two

K two

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Dec 6, 2018
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ps866mker said:
I don't think there's a real answer to this. Some users are still using High Sierra. IMO, if its a home machine then I think one can minimize risk if:
  • as you said, keep using the latest Chrome or Firefox (since Safari will no longer get updates)
  • Use Thunderbird instead of Mail since Thunderbird is still being updated down to Sierra
  • Use secure dns like Cloudflare, Quad9..etc
  • Maybe install a paid for malware program like Bitdefender. Now I don't think this is necessary but like I said minimize risk
If its a laptop and you use it outside the house I would then include:
  • Don't trust free access points. Use you own or pay for a personal hotspot on your phone or a standalone device
  • VPN like Proton VPN, Mozilla VPN, Private Internet Access..etc
The best would be to update to Big Sur (or the next) but then that's not always possible or convenient. I can't use my 2011 MBP on Big Sur and above via OCLP. They will run but there's just too many compromises that I'm not comfortable using it. Another advice would be to buy the next step old mac like a 2015 MBP which is Monterey supported. Good luck to you and to all of us who use Catalina.
Click to expand...
Squatting Hen said:
Just checking…the only “important” software updates are the Security Updates at this point correct? Those probably won’t happen very often either.

Once they stop, is there truly any concerns about continuing to use Catalina? Say I stick with edge or chrome, and use the internet safely.
Click to expand...
Keep X-Protect and MRT up-to-date with SilentKnight and everything will be alright. :cool:
 
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Z

Zeh

macrumors newbie
Apr 12, 2020
3
2
skiabox said:
Damn!
I just solved the problem!(At least for this session.I wonder if it works after a restart)
First you do (optionally) xattr -lr <path_to_app_bundle> to get the list of the files that cause the error.
Then you do xattr -cr <path_to_app_bundle>.
And now you are finally ready to change the code signature using sudo codesign -f -s - <path_to_app_bundle>.

For my case with chrome browser I used the following <path_to_app_bundle> :
/Applications/Google\ Chrome.app
Click to expand...

Life saver!
This actually works! Tested with Chrome and Brave browser! Both were crashing before start showing the jumping icon on Dock.

I'll test with every app that's not opening in Catalina.

Tested on a MacBook Pro 15 early 2008 with patched Catalina installed.
 
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Pluda

Pluda

macrumors member
Dec 14, 2018
68
69
Hello, it's been a while since my last time here.
Running SilentKnight I can see my EFI firmware is out of date, well my mac is out of date, but it's running so smooth that I've decided to quit keep updating. Now, just to be sure, is this EFI firmware question a issue? If so, Is there any way of simply update the EFI
Screenshot 2022-02-10 at 11.53.08.png
firmaware?

Thanks

Screenshot 2022-02-10 at 11.53.08.png
 
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makra

makra

macrumors 6502
Dec 29, 2020
370
385
Northern Germany
Pluda said:
Hello, it's been a while since my last time here.
Running SilentKnight I can see my EFI firmware is out of date, well my mac is out of date, but it's running so smooth that I've decided to quit keep updating. Now, just to be sure, is this EFI firmware question a issue? If so, Is there any way of simply update the EFI firmaware?

Thanks
Click to expand...
AFAIK you can't do that yourself. System updates are supposed to do ist - and sometimes they do. I installed and updated High Sierra on a new partition on my 8,1, but I haven't succeeded...
 
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K two

K two

macrumors 68020
Dec 6, 2018
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Pluda said:
Hello, it's been a while since my last time here.
Running SilentKnight I can see my EFI firmware is out of date, well my mac is out of date, but it's running so smooth that I've decided to quit keep updating. Now, just to be sure, is this EFI firmware question a issue? If so, Is there any way of simply update the EFI View attachment 1956904 firmaware?

Thanks

View attachment 1956904
Click to expand...
See - https://dortania.github.io/OpenCore-Legacy-Patcher/ for your answer. ?Zero Firmware Patching required! It's in the docs. ?Read and heed! Y'all. :rolleyes:

OCLP boots @dosdude1 installations, perfectly w/o changing anything. btw
 
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Pluda

Pluda

macrumors member
Dec 14, 2018
68
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K two

K two

macrumors 68020
Dec 6, 2018
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Pluda said:
Thanks @K two, but I'm confused about my graphic card, It's the Intel HD Graphics 3000 :-( , will I be able to run Big Sur? Does it make a difference or should I just stay with Catalina (Running perfecty fine)?
Click to expand...
If you have a spare 256GB partition on your SSD to install Big Sur and OCLP, you can try? I have @dosdude1 Mojave & Catalina and OCLP_043N booting Big Sur and Monterey partitions on the same unpatched bootROM machine without any issues.
• dosdude Catalina is robust, proven, looks better than OCLP patched MacOS and is no longer an experiment. Updating requires @jackluke tool(s) whereas OCLP requires no intervention. A good thing because macOS 11&12 are constantly receiving version updates where macOS 10 is done except for Security Updates.
• OCLP is definitely a WIP but is impressive in the achievements so far, particularly on Macs w/Metal GPUs and upgraded WI/FI. The legacy graphics patches are making progress.? Getting new macOS features to work is still hit and miss but improving. More apps require older versions to be useful. Overall, use as a daily driver can be sustained. :cool:
 
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K two

K two

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Dec 6, 2018
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North America
up1234 said:
Thanks. It was not the USB, tried a bunch of different ones. After formatting the SSD again it worked. But now the wifi is not working, even though I did the post installation batch. Any ideas there?
Click to expand...
Was Force Cache Rebuild selected after the patches were installed? Was the correct WI/FI patch selected? There are two choices.?‍♂️
 
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jackoverfull

jackoverfull

macrumors regular
Dec 3, 2008
179
81
Berlin, Germany
I'm using my 2009 13 MBP a bit and noticed that there is no way to turn off the automatic brightness adjusting: the F1 and F2 keys work fine, but there is no brightness slider and checkbox in the Monitor preferences pane. Is any fix available? Or at least a way to turn it off using the command line?
 
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S

Squatting Hen

macrumors newbie
Jan 12, 2022
28
23
Question. I already have 19H1713 installed.

Today I see these three updates. Should I install any of these? I am not on beta so I didn’t expect to see these popup.

It also wants me to install Monterey but I know not to do that.
 

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makra

makra

macrumors 6502
Dec 29, 2020
370
385
Northern Germany
Squatting Hen said:
Question. I already have 19H1713 installed.

Today I see these three updates. Should I install any of these? I am not on beta so I didn’t expect to see these popup.

It also wants me to install Monterey but I know not to do that.
Click to expand...
Go ahead! Four days ago 19H1715 was released. An easy way to look up the update history is here:
en.wikipedia.org

macOS Catalina - Wikipedia

en.wikipedia.org en.wikipedia.org
 
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P

ps866mker

macrumors member
Jan 23, 2022
45
48
zfrogman said:
SUdb2022-003 Ota via catalinaswufix4amfi.command and Catalina Patcher v.1.4.4. All runs well.. Catalina 10.15.7 (19H1815a)
Click to expand...
I can't install this patch for the life of me haha! I've attempted multiple times but it doesn't latch on. The last 2 updates were good but not this one. Will try again.

Edit: K Two post #15,270 is the magic key for me.
 
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