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Mike Richardson

macrumors regular
Original poster
This is probably really obvious, yet I still don't see it. Sorry. (I also have a lot of apathy for any version past 10.15)

I have a MacPro5,1. OpenCore 0.8.2 is installed. It has a "MacVidCards" RX 580.

How do I actually go about installing 12.5 Monterey or Monterrey or Mexico or whatever it is?

I have a USB install stick that I made. It does not boot, it kernel panics somewhere in the middle. (I boot it by holding Option, then picking EFI so OpenCore loads, then picking the USB drive.) You can't pick the Monterey install drive directly, it shows a prohibitory sign.

Isn't OpenCore enough, or do I have to do other stuff?

Edit before actually posting: You have to use OpenCore Legacy Patcher. This is often called OCLP https://dortania.github.io/OpenCore-Legacy-Patcher/

Posted anyway as this might save a few people some grief.
 
This is probably really obvious, yet I still don't see it. Sorry. (I also have a lot of apathy for any version past 10.15)

I have a MacPro5,1. OpenCore 0.8.2 is installed. It has a "MacVidCards" RX 580.

How do I actually go about installing 12.5 Monterey or Monterrey or Mexico or whatever it is?

I have a USB install stick that I made. It does not boot, it kernel panics somewhere in the middle. (I boot it by holding Option, then picking EFI so OpenCore loads, then picking the USB drive.) You can't pick the Monterey install drive directly, it shows a prohibitory sign.

Isn't OpenCore enough, or do I have to do other stuff?

Edit before actually posting: You have to use OpenCore Legacy Patcher. This is often called OCLP https://dortania.github.io/OpenCore-Legacy-Patcher/

Posted anyway as this might save a few people some grief.


Yes, the OCLP is the only working solution for a stock Mac Pro 5,1 with bluetooth, wifi, h264 and HEVC hardware decoding/encoding acceleration supported at once for now. It is an all-in-one package.

The mandatory requirement is that you must have a Mojave 10.14.x currently up and running as your boot drive before the Monterey installation can begin to be installed on the secondary drive (target installation drive). An USB stick doesn't help anything in this case and it is useless. You go download the Monterey installer (from any channel you can get) and place it into your Application folder. That's all. Then run the OCLP installation steps as instructed in their website. That's all.

One thing you need to play attention is that you better to install the Opencore stuffs (its EFI folders..etc) into your target installation drive. Not in the Mojave boot drive. That allows you later to complete remove and separate the dependency to the Mojave boot drive once the Monterey installation is completed. Then the Monterey can work alone and the Mojave drive can be offline (physically be removed if you want to) till one day you need it for installing other macOSes to other drives or act as a rescue disk for your Monterey. The Mojave drive isn't needed during a normal opencore operation.
 
Yes, the OCLP is the only working solution for a stock Mac Pro 5,1 with bluetooth, wifi, h264 and HEVC hardware decoding/encoding acceleration supported at once for now. It is an all-in-one package.

The mandatory requirement is that you must have a Mojave 10.14.x currently up and running as your boot drive before the Monterey installation can begin to be installed on the secondary drive (target installation drive). An USB stick doesn't help anything in this case and it is useless. You go download the Monterey installer (from any channel you can get) and place it into your Application folder. That's all. Then run the OCLP installation steps as instructed in their website. That's all.

One thing you need to play attention is that you better to install the Opencore stuffs (its EFI folders..etc) into your target installation drive. Not in the Mojave boot drive. That allows you later to complete remove and separate the dependency to the Mojave boot drive once the Monterey installation is completed. Then the Monterey can work alone and the Mojave drive can be offline (physically be removed if you want to) till one day you need it for installing other macOSes to other drives or act as a rescue disk for your Monterey. The Mojave drive isn't needed during a normal opencore operation.

Well, I don't mind having Mojave. Actually, I need to dual boot with that anyway. I'd like to run a few old games and stuff that never got ported to 64-bit.

And all the instructions I just read for OCLP had to do with making a boot drive... Except it made a useless, non-bootable boot drive, almost like some kind of sick joke.

This doc is centered around downloading and writing the macOS installer to a USB. If you're already familiar with how to do this, you can skip.

Note: 16GB+ USB will be required for the installer

I don't understand why it's having me do it on a USB, unless it's going to make a bootable USB. This just seems unnecessarily complicated then.

Here's the useless USB it actually made. I can't boot from this. It's worthless.

1658973481073.png


Edit: You have to "install" OpenCore to the USB drive. Now I get a 3rd EFI boot thing in the boot picker. Pick that, then the stupid looking not obviously bootable Monterey install, which will then boot.

Now I am booted to some screen that is complaining I don't have a mouse, probably because I am using a Magic trackpad or whatever and maybe my Bluetooth chip is no longer supported. That's fine, I expected that and have a USB mouse that I can use, once I eventually find it or give up and go buy one.

(I thought the trackpad worked like a mouse in USB Mode. I even remember seeing it in System Profiler)

Edit 2: I was away to get some food. I think it got mad that I never hooked up a mouse. Or, it finally recognized the trackpad after plugging the USB in and out several times. Now it's booted to a recovery thing where one choice is to install Monterey. The trackpad works. I dunno if it rebooted, or recognized the trackpad.

Allegedly it's installing now. Did I mention I don't care for macOS Mexico or Big Surly Dump or macOS Venture Stores (only folks from Houston, St. Louis, and Australia will get that one)? I am grateful for OpenCore and OCLP though.

Does anyone know if SMB sharing sucks any less in newer versions? I have several HFS drives in the Mac Pro that I share to other Macs. AFP has always worked better, and I have tested both extensively. All of the clients are Catalina. AFP sharing was of course, taken away in version whatever. (I don't really care what protocol is sharing the files, but I do care that it works correctly.)
 
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Monterey 12.5 installed.

Main issue right now is that iCloud Keychain never synced up. I'm going to bed though, we'll see if it figured it out by the morning.

File sharing... works, I guess. SMB only.

Code:
defaults write -g NSAlertMetricsGatheringEnabled -bool false

That line is a godsend.
 
Just offering a small (narrow use case) data point here: My 5,1 Monterey 12.5 installation via OCLP boots fine, but the external 10GbE within the AKiTio Thunder3 Pro Dock fails in an interesting way:

The 10GbE port goes 'active' but fails to acquire an IP address via DHCP. When assigned a static IP address, I can ping the assigned address from within Monterey using the Terminal app, but that's all that works. None of the normal address resolution protocol stuff works, so I cannot even successfully ping the default router.

Everything works just dandy in Big Sur, so this is a continuation of the steady drumbeat of 10GbE connectivity broken/deprecated by each new update to macOS. [My SolarFlare SFN5122F, and AQN107 PCIe adapters were disabled by Catalina and Big Sur, respectively.]
 
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