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When I try doing a clean install with a usb installer. I’ll get to the first restart then I get a “can’t update firmware” error. I’m trying installing Big Sur first and then doing a update to see if that works.

Any ideas on why the usb installer would act like that?
 
One thing to add about Monterey, unfortunately Apple finally removed NVIDIA Kepler drivers. So, if you have a NVIDIA GPU and follow this guide, don't update to Monterey.

AFAIK, OCLP can patch the root volume and add the 11.0 Beta3 NVIDIA drivers back to Monterey, but this means that you won't have a vanilla install anymore.

Bad timing with the current insane GPU prices. :mad:
Thanks @tsialex - so to be clear with my NVIDIA GeForce GTX 680 I will need to patch in drivers to install and run Monterey or get a different GPU - correct?
 
Thanks @tsialex - so to be clear with my NVIDIA GeForce GTX 680 I will need to patch in drivers to install and run Monterey or get a different GPU - correct?
Yes, except that you can install without patching the installer, just with the MacEFI drivers from the flashed GPU. It's unbearable slow with no acceleration, but works and later you'll install the NVDIA Kepler drivers as @jackluke wrote and business as usual until the next software update.


Don't forget that this will be needed to do again at each new software update, so, with Apple continuous software updates, I'm moving my Monterey Mac Pro from the GTX 680 to a RX 560. It will be a lot less hassle, if you have a GPU available.

Btw, Polaris and VEGA AMD GPUs will become even more scarce/costlier when the Mac Pro people finally learn about Monterey and NVIDIA GPUs.
 
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I'm running Mojave on a 5,1. I just installed Martin's 0.7.4 package, rebooted, and I now see Monterey in the Software Update. I clicked 'Upgrade Now' and when it rebooted into the installer it complained about my firmware. Luckily I was able to reboot into Mojave with no harm done. How do I fix this?
 
No problems upgrading my 5,1 from 11.6.1 to 12.0.1 (open core 0.7.4). Bluetooth finally quit working but that had to come sooner or later.
 
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I have the original WiFi/Bluetooth module. WiFi already went out with Catalina (I believe) but Bluetooth still worked with Big Sur.
on the Monterey on Unsupported Macs thread it was informed the legacy drivers were removed completely on Monterey, you have to either patch your Mac or upgrade the module to a supported one
 
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I started the macOS 12 update, get all the way through the first part of the install and it reboots. Takes me to a screen saying it’s unable to install some firmware thing then forces me to reboot back to 10.14 (my other install drive) I can’t for the life of me get it past this firmware updater.

I have tried redownloading, starting over, a different drive.

I’m using martins .74 package and it worked great for 11.6

Can anyone help? I just at my wits end now
 
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I started the macOS 12 update, get all the way through the first part of the install and it reboots. Takes me to a screen saying it’s unable to install some firmware thing then forces me to reboot back to 10.14 (my other install drive) I can’t for the life of me get it past this firmware updater.

I have tried redownloading, starting over, a different drive.

I’m using martins .74 package and it worked great for 11.6

Can anyone help? I just at my wits end now
I will test with OCLP v0.3.1. I believe the Firmware problem is due to the fact that the Martins package is configured in Hybrid mode (iMac Pro). OCLP has set my SMBIOS to Mac Pro 7.1
If it works I'll let you know here.
 
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I will test with OCLP v0.3.1. I believe the Firmware problem is due to the fact that the Martins package is configured in Hybrid mode (iMac Pro). OCLP has set my SMBIOS to Mac Pro 7.1
If it works I'll let you know here.
It worked! It really is the SMBIOS + Firmware Features setup. Then I'll try changing the config.plist of the Martins package.
And @PeterHolbrook, I'm not supporting OCLP, I'm trying to help whoever like me was having trouble installing/upgrading the system to Monterey.
 
can we try and do comparisons of those who do have it working what you did and exact details so we can track down the differences?

That’s more helpful that disputes over OCLP.

My 6 core MP5,1 doesn’t have the upgraded BT/wireless in it yet, I’m using Martin’s standard 0.7.4 package with no changes and that failed.

I have a wired keyboard and mouse. On that machine the install wouldn’t complete.
 
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on the Monterey on Unsupported Macs thread it was informed the legacy drivers were removed completely on Monterey, you have to either patch your Mac or upgrade the module to a supported one

Is there a list of what specifically was removed?
 
I started the macOS 12 update, get all the way through the first part of the install and it reboots. Takes me to a screen saying it’s unable to install some firmware thing then forces me to reboot back to 10.14 (my other install drive) I can’t for the life of me get it past this firmware updater.

I have tried redownloading, starting over, a different drive.

I’m using martins .74 package and it worked great for 11.6

Can anyone help? I just at my wits end now

I'm having the same problem. The first reboot during install attempts to install firmware, which gets blocked by virtue of the fact that OC has hybridization and my firmware version set to 9999.0.0.0.0.

An error box is displayed about not being able to update firmware.

But it doesn't continue the install, it just lets me reboot again and the installer volume is not there anymore, have to boot back to Catalina.

what's the trick to get past hybridization firmware attempt?
 
I'm having the same problem. The first reboot during install attempts to install firmware, which gets blocked by virtue of the fact that OC has hybridization and my firmware version set to 9999.0.0.0.0.

An error box is displayed about not being able to update firmware.

But it doesn't continue the install, it just lets me reboot again and the installer volume is not there anymore, have to boot back to Catalina.

what's the trick to get past hybridization firmware attempt?


 
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Thanks Alex! @cdf, suggest the guide should mention this with regards to Monterey, if it does already I missed it.
 
On deeper examination, my wifi (the original 5,1 card) won't connect to anything under Monterey; not a problem for me, as I only use wired connections on the MPs. Oh, and @PeterHolbrook ? This is not a dancing support thread, Salsa has no place in it....
 

Hi Alex,

I made the appropriate changes but it just keeps booting once into Macintosh HD and then goes into Big Sur without doing the actual update. Is it possible to do a clean install from Mojave to Monterey?
 
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