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<< Solved >> Help on understanding how all this OpenCore/EFI works

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For example,

I've created an installer with this superb (an long) guide.
I've installed macOS.
Nice that's working!

Now I want to make post-install tweaks like those.
When for example I have to modify the config.plist file, what do I do?
Plug the USB installer, mount its EFI partition, make the changes and just restart the computer?
 

Feartech

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For example,

I've created an installer with this superb (an long) guide.
I've installed macOS.
Nice that's working!

Now I want to make post-install tweaks like those.
When for example I have to modify the config.plist file, what do I do?
Plug the USB installer, mount its EFI partition, make the changes and just restart the computer?
yes, or test with your usb installer in case you mess something up, when you are happy, then copy the EFI from your USB to your hard drive EFI
 
Joined
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Zotac GeForce GTX 1660 SUPER + Radeon 550
yes, or test with your usb installer in case you mess something up, when you are happy, then copy the EFI from your USB to your hard drive EFI
So OpenCore will automatically detect my plugged USB and apply the EFI folder in it?

copy the EFI from your USB to your hard drive EFI
When I try to use MountEFI on my main disk:
Screenshot 2021-08-01 at 18.41.43.png
Screenshot 2021-08-01 at 18.44.09.png


So how do you do that?
 

Feartech

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Feartech

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But this will prompt for the installation process right?
yes, and also give you a prompt to also boot your mac from your hard drive
 
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yes, and also give you a prompt to also boot your mac from your hard drive
If I have to reinstall macOS every time I have to change something in the EFI folder why is it called "Post-install"?
 

Feartech

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If I have to reinstall macOS every time I have to change something in the EFI folder why is it called "Post-install"?
i never said to re install, just boot with your usb stick, at the boot picker, choose to boot macOS....
 
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In fact I have a dual boot setup, and if I'm not misreading the screenshot the Windows disk seem to "have" the EFI partition.
Screenshot 2021-08-01 at 19.40.45.png

So if I'm right:
To test a modification:
- I modify the EFI partition inside the USB
- I reboot to the USB
- From the OpenCore interface I choose macOS
Once I've tested it:
- I copy the OC folder from the USB to the Windows Disk's EFI partition
- I reboot to the OpenCore
- From the OpenCore interface I choose macOS

Am I right @Feartech?
 
Last edited:

Feartech

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In fact I have a dual boot setup, and if I'm not misreading the screenshot the Windows disk seem to "have" the EFI partition.
View attachment 525941
So if I'm right:
To test a modification:
- I modify the EFI partition inside the USB
- I reboot to the USB
- From the OpenCore interface I choose macOS
Once I've tested it:
- I copy the OC folder from the USB to the Windows Disk's EFI partition
- I reboot to the OpenCore
- From the OpenCore interface I choose macOS

Am I right @Feartech?
yes
 
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