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macOS 12 Monterey on Unsupported Macs Thread

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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.
K two said:
OCLP and BigSur is a great match although Monterey is emerging. Your Catalina will still boot just fine as installed via @dosdude1 w/OCLP. :cool:
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Well, if I want to get serious (i.e. productive) with Big Sur, I'ld want to have all my stuff there. Now while still testing I open apps and documents in my Catalina volume after booting from Big Sur or Monterey, which works great. As far as I can see, the other way round is not possible, is it?

(I have a separate partition on my MBP 9,1, where I have installed HS to be able to run CS6 just in case. I tried to open the Monterey partition from there, but that didn't work.)
 
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makra said:
Well, if I want to get serious (i.e. productive) with Big Sur, I'ld want to have all my stuff there. Now while still testing I open apps and documents in my Catalina volume after booting from Big Sur or Monterey, which works great. As far as I can see, the other way round is not possible, is it?

(I have a separate partition on my MBP 9,1, where I have installed HS to be able to run CS6 just in case. I tried to open the Monterey partition from there, but that didn't work.)
Click to expand...
I run each individual macOS from separate partitions. I set-up each initial install manually. Because Migration Assistant has been unreliable for me. YMMV
 
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Screen Shot 2022-02-03 at 20.08.00.jpg
Successfully installed macOS Monterey 12.3 Beta only issue I have a grey login screen when starting up if I log off the login screen appears normally
 
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I've been trying to install 12.3b1 on my CMP5,1 and 3,1 but keep getting the message "A required firmware update could not be installed" which halts the process completely. I haven't run into this issue with any other full or beta versions of Monterey. I'm using the Nightly 0.4.2 OCLP and the OTA process over the top of 12.2 (although, strangely, the PublicBetaAccessUtility on the 3,1 sometimes wants to download an earlier 12.2 beta rather than the 12.3 beta, even though the full 12.2 is already installed!).

Any words of wisdom about getting around the firmware message would be appreciated. I thought OCLP was supposed to get around this issue by 'patching' 9999.999.999.999.999 as the firmware and preventing mismatches from occurring.

Other members have reported success with updating to 12.3b1 on their 5,1's and 3,1's. Did any experience this block at the firmware update stage?

Should I just wait until some of the full sized 12.3 beta installers are available via gibMacOS and forget about the initial beta 1 OTA update? Maybe it's the OTA process in general that's at issue regarding the unwanted firmware update. All of my previous installs of Monterey versions used a full sized installer to build USB drive Installers.
 
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mwidjaya said:
Try to simplify, ie. run as few versions of macOS as possible.

For eg. all my "production" macs are on Big Sur at the moment. It is the n-1 approach.

Not even tempted to load Monterey yet.
Click to expand...
Before I try to install Big Sur (or maybe Monterey) on all of the pre-2012 Macs later this year, I want to know what I'm doing.
Monterey works flawlessly on my 9,1 - and the user experience doesn't differ very much from Big Sur. So, my creative chaos with all those OSes works for me all right.
 
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I have "MacBook Pro 13 early 2011" with Intel HD Graphics 3000
I installed clean Monterey 12.2 with OCLP 0.4.2 and I noticed some graphics issues and keyboard brightness is broken after post instal volume patch, please help
 

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relax day said:
I have "MacBook Pro 13 early 2011" with Intel HD Graphics 3000
I installed clean Monterey 12.2 with OCLP 0.4.2 and I noticed some graphics issues and keyboard brightness is broken after post instal volume patch, please help
Click to expand...
Before downloading and before posting you could/should have checked the online OCLP docs and the section about video legacy patching.
 
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I reinstlled the 12.3 beta and fixed the login(lockscreen) that way as I tried other methods to no avail as I was using Monterey dynamic desktop picture but I can only find it in 5k
 
i just updated my mb 5,2 to 12.2 from OTA, applyed post install and after second boot everything works! cheers!!

i have a question even though monterey works, for this machine is it better going on bog sur or ramain on monterey?
i'm asking because i passed from catalina to monterey...
ty

edit: forgot...used 0.4.2
 
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Guys installed oclp and now my iMac 2011 27 wont boot(
Is there way to wix it without reinstalling OS?
Also after installing Monterrey - lcd display via both thundebolt ports does not works,
iMac 27 Mid 2011(i5) W6170M 2G
Also i have to nvam reset after each shutdown
airplay to from imac does not works at all
 
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Hi, seeing this for nearly an hour now on my MBP6,2.
HDD is completely empty.
Is it worth waiting or is there anything I can do?
Thanks!
(Try to install 12.2 using OperCore Patcher 0.4.2)

1644001694712.jpeg
 
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I successfully installed Monterey 12.2 on a Macmini5,3 Mid 2011 using OCLP 0.4.2 and the video Post Install Root Patch without running into any problems.

Macmini5,3 Mid 2011 - OCLP 0.4.2 - Monterey 12.2.png
I had started with Big Sur 11.6.2 -> OTA 11.6.3 -> Monterey 12.1 -> OTA 12.2.

I had to find the tip to set System Preferences -> Displays -> Color Profile to "Display" to overcome, for example, "blacked out" text boxes in System Preferences dialogs.

System Preferences - Displays.png
Much gratitude to the OCLP development team and the contributors to this thread.
 
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[RESOVLED] I am on Monterey 12.1 with Opencore 0.41 on a late-2012 imac 27, if I upgrade to 12.2 from Software Update, will I run into any issues. Thanks
 
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