MP 1,1-5,1 Mac Pro 3,1 - GTX 680 - Catalina Patcher Not Responding

[jimmyclephane]

Hi all!

I know there's been a few threads about doing this but none of them seem to cover the issue I'm having. I've seen that a lot of people have got Catalina patched onto their Mac Pro 3,1's and I really want to do the same. Every time I launch the patched installer though all I get is "Application Not Responding" .... and if I try to boot from the patched installer USB it loads most of the way but then just hangs a few millimeters from the end of the progress bar under the apple logo.

Has anyone had this issue? Is there a solution?

Machine breakdown is:
- Mac Pro 3,1
- 2 x 2.8 Quad Core Xeon
- 64GB RAM
- GeForce GTX 680

Thanks for any help you can give!

Jimmy

 

[Dayo]

DosDude Catalina, while workable, is generally outdated today. I believe it stopped receiving updates a while ago anyway and there may be issues with Catalina updates released in the interim.

You want to look at using OpenCore instead. The link to MyBootMgr in my sig is one easy way to implement this and there are other options on the forum. Check the Opencore thread in the sticky section.

MyBootMgr is 3,1 friendly since I run one although it works for other cMP just as well.

 

[jimmyclephane]

Thanks. I'm having a look through MyBootMgr and may give it a go. I'd prefer to not change anything about the boot screen if possible though.

The funny thing is too that I did manage to install Catalina via the dosdude1 patcher a few months back. It didn't run well as my MacPro had a poor GPU and not much RAM at the time so I wiped the drive and decided to try again once I'd upgraded. Now that I've Upgraded my GPU, RAM and HDD it now won't install .... even if I go with MyBootMgr ultimately I would really like to get to the bottom of the problem with the patcher launching. If only to understand this machine better.

I've tried the Mojave patcher too but I get an error saying the items need to be downloaded that cant be at this time.

 

[Dayo]

One advantage of MyBootMgr is that it can be implemented and removed without changing anything. You will be back to where you were before if you decide it isn't for you

 

[joevt]

It didn't run well as my MacPro had a poor GPU and not much RAM

Now you have too much RAM. Add maxmem=63488 to make it 62 GB. Dosdude1 patcher might modify NVRAM so you might want to double check the boot-arg before booting macOS after using the patcher. I made a patch for Catalina patcher but it hasn't been updated https://github.com/dosdude1/macos-catalina-patcher/pull/103

One thing you might try is modifying /Library/Preferences/SystemConfiguration/com.apple.Boot.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Kernel Flags</key>
	<string>maxmem=63488 -no_compat_check</string>
</dict>
</plist>

Are you using the APFS ROM Patch (installed in firmware and loads before Driver####) or the APFS Patch (nvram Boot#### variable points to EFI Shell installed in EFI partition which loads apfs.efi - the is installed by dosdude1 Catalina patcher when the APFS Patch is selected) or the Driver#### method (nvram Driver#### variable points directly to apfs.efi and loads before Apple Startup Manager)?

 

[jimw]

Hi all!

I know there's been a few threads about doing this but none of them seem to cover the issue I'm having. I've seen that a lot of people have got Catalina patched onto their Mac Pro 3,1's and I really want to do the same. Every time I launch the patched installer though all I get is "Application Not Responding" .... and if I try to boot from the patched installer USB it loads most of the way but then just hangs a few millimeters from the end of the progress bar under the apple logo.

Has anyone had this issue? Is there a solution?

Machine breakdown is:
- Mac Pro 3,1
- 2 x 2.8 Quad Core Xeon
- 64GB RAM
- GeForce GTX 680

Thanks for any help you can give!

Jimmy

You are using an unsupported MacOS on your machine. I have a Mac Pro 5.1 and the last sanctioned MacOS for it is High Sierra. If I were to purchase and install a METAL compatible graphics card Mohave might be allowed to be installed. While I resent Apple's policies of forced obsolesce on older machines to coerce users to purchase expensive later models the fact is if you are running Catalina on a MacPro 3.1 you have essentially turned your machine into a Hackintosh which comes with no promises or guarantees that any such update will run correctly or at all much less being able to take advantage of any normal updates. Unfortunately due to Apple's, what I refer to as myopic greed, you are on your own.