Toggle sidebar Toggle sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

macOS 12 Monterey on Unsupported Macs Thread

Status
The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
Hackintosh HD said:
By the way: NightRai has just posted an IMHO really helpful hint in the OCLP issues on GitHub for reviving the keyboard backlight OSD control: Read Sweater Software's free application Touché, once launched, restores keyboard backlight OSD control functionality on my MacBook Pro. I can even quit the application and the OSD control functionality (F5 / F6) remains.
Click to expand...
Thanks for reporting.
Now using Touché on my MBP5,2.
With it, keyboard backlight works well in 12.1b1 and 11.6.1.
 
Last edited:
  • Like
Reactions: K two, macinfo and Hackintosh HD
Orcky723 said:
Frequent] "Volume Hash Mismatch" - Appears as a notification, not sure what it means.
Click to expand...
Hi all,

installing on my Late2013 iMac 21´ works, but after first reboot i also get this "Volume Hash Mismatch" error.
Any solutions or workarounds? Seems to be an Apple problem - not OpenCore.

hash.png


Had to reinstall Big Sur...

Best,
JB
 
Last edited:
  • Like
Reactions: shafez and K two
Short feedback for my really old White MacBook (MacBook6,1 Late 2009, Nvidia GeForce 9400M): Installation of Monterey 12.0.1 Release version with OpenCore Patcher 0.3.1 TUI with some hiccups (Transcend USB 3.0 16GB flash drive was detected, but booting macOS installer from OpenCore EFI hangs once at 50% and once at beginning - curiously the installer started flawlessly the next time without changing anything) using all default settings.

First startup of Monterey with install assistant was really slow (no graphics acceleration at all while moving mouse, fading out/in, ...), but after applying the Post-Install Volume Patch with the Non-Metal Graphics Acceleration everything was smooth.. ;-)

Remaining graphical problems: The fan runs at full speed and there are some graphical glitches in menus, but after reducing transparency (which isn't working at all) in "System Preferences, Accessibility, Display" the fan spins down and most of the graphical errors disappeared. There are still some graphical errors i.e. the context menu opening from dock/desktop or in Safari after wake up from sleep.

Boot problems: Unfortunately I can only boot up the freshly installalled Monterey from SSD if USB drive with patched macOS installer is connected. Wake-up from deep sleep (suspend-to-disc) or booting up after shutdown without USB flash drive won't work. I followed the instructions from troubleshooting guide Cannot boot macOS without the USB and Moving OpenCore from USB to macOS Drive but I can't find the mentioned BootInstall.command even in the OpenCorePkg. Moving only EFI partition from USB flash drive to SSD with MountEFI will only result in a non-bootable SSD if I disconnect the USB flash drive. Any suggestions how to solve this to get rid of the USB drive?

Last but not least: Really great work!!! I never imagined that my 12 year old White MacBook will run even with Monterey...
 
K two said:
The joys of T2. Earlier Macs use any SSD. 😎
Click to expand...
That's actually not the problem. The 2015 MBP does not have a T2 chip and it can use any SSD. However, it cannot use any SSD if you want to upgrade the firmware. In that case it needs the original SSD. After the firmware has been updated, you can reinstall your third-party SSD.
That's obviously a real problem if you have sold or thrown away the original SSD in the meantime.
BTW, the 2015 MBP is still a supported machine for Monterey, so it really has nothing to do with the subject of this thread.
 
  • Like
Reactions: macinfo, K two and Larsvonhier
Lars B. said:
That's actually not the problem. The 2015 MBP does not have a T2 chip and it can use any SSD. However, it cannot use any SSD if you want to upgrade the firmware. In that case it needs the original SSD. After the firmware has been updated, you can reinstall your third-party SSD.
That's obviously a real problem if you have sold or thrown away the original SSD in the meantime.
BTW, the 2015 MBP is still a supported machine for Monterey, so it really has nothing to do with the subject of this thread.
Click to expand...
Right, considering the original post was concerning a cMP patched with a non-Legacy version of OpenCore. 🙄
 
JasonBC said:
Hi all,

installing on my Late2013 iMac 21´ works, but after first reboot i also get this "Volume Hash Mismatch" error.
Any solutions or workarounds? Seems to be an Apple problem - not OpenCore.

View attachment 1906390

Had to reinstall Big Sur...

Best,
JB
Click to expand...
My Late 2013 13" MacBook Pro (MacBookPro11,1) has been giving this warning ever since I first installed OCLP on the internal EFI partition. Other than the warning there are no other issues and everything runs fine. It shows up on every version of Monterey from the early 12.0 betas through the first 12.1 beta.
 
  • Like
Reactions: K two
Hi everyone, new user here.
I've been following this thread for a while, trying to correlate all of the information, but I admit I'm a bit out of my league. Hopefully someone more experienced than me can provide insight.

My current machine is a Late 2012 Mac mini (6,1) running Big Sur 11.6.1 via OCLP 0.2.5 -- Everything is running absolutely great as-is. I think that my Mini came with a third-party SSD, (I purchased the machine re-certified). In System Information the model shows as "Lexar."

I do see the update for Monterey 12.0.1. But from reading this thread, I get the impression that it's impossible for me to install Monterey due to a firmware upgrade requirement being incompatible with third-party SSDs. Do I have that right?

Since everything is currently working fine on Big Sur, I'm perfectly content to maintain the "If it isn't broke, don't try to fix it" attitude, and keep rolling along. I just want to be sure that I've hit the limit of my upgrade path, and not giving up prematurely.

Thanks everyone. OCLP has been a real blessing on this 2012 Mini. It still runs phenomenally and lightning fast.
—5 Tracks.
 
newsman1979 said:
when you say samsung is that an apple original ssd or its an after market samsung? if you can do a screen shot for your ssd i can tell you if its an original or after market.
witch OS you are trying to install?
in your case your MacBook the last OS you can get (no patching) is macOS Mojave
Click to expand...
Thanks and sorry the late reply. I tried the micro patcher but that did not work. I did put in the Apple Original Samsung ssd and had no luck but I have since used OCLP with success and am all good. Thanks!
 
I had success with OCLP on my trusty 2012 Retina MacBook Pro 10,1 and it feels even snappier than BigSur. One problem though is a very very slow boot. Probably 2 minutes which is weird. Currently not using any encryption. I am currently away and have not tried verbos mode yet. Thought I would ask first if anyone else has experienced this and knows an easy fix. Thanks!
 
5tracks said:
Hi everyone, new user here.
I've been following this thread for a while, trying to correlate all of the information, but I admit I'm a bit out of my league. Hopefully someone more experienced than me can provide insight.

My current machine is a Late 2012 Mac mini (6,1) running Big Sur 11.6.1 via OCLP 0.2.5 -- Everything is running absolutely great as-is. I think that my Mini came with a third-party SSD, (I purchased the machine re-certified). In System Information the model shows as "Lexar."

I do see the update for Monterey 12.0.1. But from reading this thread, I get the impression that it's impossible for me to install Monterey due to a firmware upgrade requirement being incompatible with third-party SSDs. Do I have that right?

Since everything is currently working fine on Big Sur, I'm perfectly content to maintain the "If it isn't broke, don't try to fix it" attitude, and keep rolling along. I just want to be sure that I've hit the limit of my upgrade path, and not giving up prematurely.

Thanks everyone. OCLP has been a real blessing on this 2012 Mini. It still runs phenomenally and lightning fast.
—5 Tracks.
Click to expand...
That special case of not being able to upgrade macOS with a third-party SSD only shows up on a certain MacBook Pro.
Your 2012 Mac mini is very likely to contain a 2.5" SSD anyways (originally a spinning drive or fusion drive), not an M.2 type where this special problem occurred.
So, yepp, you're still able to go that "unsupported machines" road a bit further with your machine, i.e. running Monterey 12.0.1 or 12.1beta (with the RDRAND patch in OCLP 0.3.1)
 
  • Like
Reactions: K two and macinfo
MarvenSmith28 said:
I had success with OCLP on my trusty 2012 Retina MacBook Pro 10,1 and it feels even snappier than BigSur. One problem though is a very very slow boot. Probably 2 minutes which is weird. Currently not using any encryption. I am currently away and have not tried verbos mode yet. Thought I would ask first if anyone else has experienced this and knows an easy fix. Thanks!
Click to expand...
It really is slower on boot-up than Big Sur, here on various of my intel machines. But 2min. is still too long. There might me some config. error involved, or unrecognized hardware etc.
Boot verbose and see what it chews on for that long duration...
 
  • Like
Reactions: K two and MarvenSmith28
Larsvonhier said:
It really is slower on boot-up than Big Sur, here on various of my intel machines. But 2min. is still too long. There might me some config. error involved, or unrecognized hardware etc.
Boot verbose and see what it chews on for that long duration...
Click to expand...
Will do and report back! Thanks
 
Larsvonhier said:
That special case of not being able to upgrade macOS with a third-party SSD only shows up on a certain MacBook Pro.
Your 2012 Mac mini is very likely to contain a 2.5" SSD anyways (originally a spinning drive or fusion drive), not an M.2 type where this special problem occurred.
So, yepp, you're still able to go that "unsupported machines" road a bit further with your machine, i.e. running Monterey 12.0.1 or 12.1beta (with the RDRAND patch in OCLP 0.3.1)
Click to expand...
Thanks for that bit of good news! I'm still slowly working up the courage to do the upgrade. 😅 I'll wait a bit more to see if anyone else has success jumping to Monterey on a Mini 6,1. I haven't seen any reports about my model, and wouldn't know how to restore to Big Sur without data loss if something goes sideways.

But at least I know that I have the option to upgrade, and that's a huge step in the right direction.
— 5 Tracks
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back