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Switch macOS Sierra to OpenCore bootloader

ono

Joined
Apr 13, 2011
Messages
47
Motherboard
Asrock M61 VG-4 (UEFI with GUI support, ACPI: 1.1 SMBIOS: 2.3.1.)
CPU
Processor: i3-3225
Graphics
GeForce 210 (GT 218 )GPU: NVIDIA GT 730 Keppler architecture
Mac
iMac
Mobile Phone
Android
This is a very valuable suggestion. I will do so. But I have a question: is it really necessary to delete the entire drive? Wouldn't it be enough just to delete the EFI partition? After that, I could reinstall only clover, in legacy mode (standard installation). I managed an installation with absolutely all the features (as if it were a real iMac) and I'm afraid that deleting and reinstalling it would not be as "happy".
I would rather buy another ssd to try this. And this whole installation is just an intermediate step: I set out to make an OpenCore bootloader, as good as a clover. But I needed a clover, to know as accurately as possible the hardware I have. Clover seems easier to understand. Or maybe I just know him a little better. Thank you very much for the indication. I will communicate the soonest what results I have.
 

Going Bald

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Joined
Aug 14, 2010
Messages
23,082
Motherboard
GA-X58A-UD7-F7
CPU
W3670
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RX 580
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iMac, MacBook Pro, Mac mini
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This is a very valuable suggestion. I will do so. But I have a question: is it really necessary to delete the entire drive? Wouldn't it be enough just to delete the EFI partition? After that, I could reinstall only clover, in legacy mode (standard installation). I managed an installation with absolutely all the features (as if it were a real iMac) and I'm afraid that deleting and reinstalling it would not be as "happy".
I would rather buy another ssd to try this. And this whole installation is just an intermediate step: I set out to make an OpenCore bootloader, as good as a clover. But I needed a clover, to know as accurately as possible the hardware I have. Clover seems easier to understand. Or maybe I just know him a little better. Thank you very much for the indication. I will communicate the soonest what results I have.
The trick is to make sure you remove the UEFI Clover totally. You could probably do this by deleting the contents of the EFI partition - the EFI folder and any other item in the EFI partition root should do it. There is a procedure for removing Clover before installing OC that you could follow to make sure you get everything.
If this is an intermediate stage, why not continue to boot from the USB?
 

trs96

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Joined
Jul 31, 2012
Messages
17,057
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GA-Z97X-UD3H-BK
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i5-4690K
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My experience with older H61 motherboards has also shown that it's better to boot legacy even if UEFI has been added later on by the manufacturer, so that would make perfect sense here.
 

ono

Joined
Apr 13, 2011
Messages
47
Motherboard
Asrock M61 VG-4 (UEFI with GUI support, ACPI: 1.1 SMBIOS: 2.3.1.)
CPU
Processor: i3-3225
Graphics
GeForce 210 (GT 218 )GPU: NVIDIA GT 730 Keppler architecture
Mac
iMac
Mobile Phone
Android

ono

Joined
Apr 13, 2011
Messages
47
Motherboard
Asrock M61 VG-4 (UEFI with GUI support, ACPI: 1.1 SMBIOS: 2.3.1.)
CPU
Processor: i3-3225
Graphics
GeForce 210 (GT 218 )GPU: NVIDIA GT 730 Keppler architecture
Mac
iMac
Mobile Phone
Android
My experience with older H61 motherboards has also shown that it's better to boot legacy even if UEFI has been added later on by the manufacturer, so that would make perfect sense here.
You are perfectly right! I felt this would be the problem. I will work in parallel: on another ssd I will install Mojave again, with Clover, to get to know this H61M better and to get the best out of it. In parallel, I will work at OC. Wish me success!
 

ono

Joined
Apr 13, 2011
Messages
47
Motherboard
Asrock M61 VG-4 (UEFI with GUI support, ACPI: 1.1 SMBIOS: 2.3.1.)
CPU
Processor: i3-3225
Graphics
GeForce 210 (GT 218 )GPU: NVIDIA GT 730 Keppler architecture
Mac
iMac
Mobile Phone
Android
I was successful: I deleted the EFI partition from the ssd on which mojave was installed. Then I installed Clover-5119. I unchecked the "only uefi" installation option and carefully chose the other options. Then I mounted the EFI partition with Clover configurator, to adapt config.plist to the specific hardware and to download and install the drivers (bios and uefi), as well as kexts.
Then I started and it booted without a problem, only everything crashed and I could only helplessly admire the result. But Linux saved me again. I went into linux, mounted the EFI partition and made the necessary corrections (I simply deleted the VirtualSMC.efi file) and then everything worked correctly.
Now I'm going to focus on moving to OpenCore. But I will return to Sierra (I promised!) And I will work for Mojave as well.
I express my gratitude for all the help I received!
 

ono

Joined
Apr 13, 2011
Messages
47
Motherboard
Asrock M61 VG-4 (UEFI with GUI support, ACPI: 1.1 SMBIOS: 2.3.1.)
CPU
Processor: i3-3225
Graphics
GeForce 210 (GT 218 )GPU: NVIDIA GT 730 Keppler architecture
Mac
iMac
Mobile Phone
Android
I managed to create a bootable stick with OpenCore. With its help I installed macOS Sierra on the hard disk. Now I'm going to study how I can make Sierra boot without the help of the stick, because the Asrock H61M motherboard is the sixth series and allows booting in legacy mode. I tried, with the same OpenCore, to install Mojave, but at the second boot, it installs for a while, then interrupts, with a firmware error message. Since I have already installed mojave on the same computer (but using Clover), I think I still have work to do, either to compile DSDT or SSDT. But there may be another wrong setting. Any indication could be of great help to me. When I have reliable results, I will publish on GitHub all the results, as I have already proposed.
 
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