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Good point. IMacPro can't run El Capitan. Seems no compat check doesn't go backwards
That may be true. I believe I also tried RP, but it just hangs (verbose boot) on some halt during loading NTFS driver ( I have no NTFS.efi as a driver so I was confused)
 
That may be true. I believe I also tried RP, but it just hangs (verbose boot) on some halt during loading NTFS driver ( I have no NTFS.efi as a driver so I was confused)
El Capitan works on RP for me. Seems clear it is the spoofing in OC that's breaking it there.
Will check again in RP
 
Hey everyone, I just followed the guide and I believe I have OpenCore installed, but I'm not seeing a boot picker. For reference I did everything in PART 1 of the guide, including disabling the GOP Renderer as well as PART II, and downloading OcBinaryData and following those steps.

I'm not sure what I may have missed. I am running Mojave with a RX580 and 2 X5680
 
Hey everyone, I just followed the guide and I believe I have OpenCore installed, but I'm not seeing a boot picker. For reference I did everything in PART 1 of the guide, including disabling the GOP Renderer as well as PART II, and downloading OcBinaryData and following those steps.

I'm not sure what I may have missed. I am running Mojave with a RX580 and 2 X5680
For cases such yours always use debug version and enable debug log in the config file.
 
I have explained the HFSPlus thing in your other post.
Legacy Macs do not need HFS+ drivers.
Sorry, didn't see that as I'm away from the computer. Does this issue qualify as a bug report in GitHub?
 
Does this issue qualify as a bug report in GitHub?
No ... there is no issue.

Reason why it is not working is because of trying to load it while spoofing the IMacPro1,1 which does not support El Capitan. Hence the forbidden symbol.

With a MyBootMgr setup, either boot to El Capitan from RP or use the "OC_ALT" instance which does not spoof anything and only switches VMM on.

You do get the disadvantage of running with VMM so I would just use RP.
Actually never even occurred to try to boot into El Capitan via OC until you brought this up.
Always did this via RP as it is natively supported.
 
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I'm not sure what I may have missed. I am running Mojave with a RX580 and 2 X5680
Very often the lack of a boot picker is because of a video card with a modified firmware. Here's a recent example:

 
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Very often the lack of a boot picker is because of a video card with a modified firmware. Here's a recent example:

Thanks.

Is there a way to check if it's been flashed in macOS? Or is the only way to do it in Windows?
 
No ... there is no issue.

Reason why it is not working is because of trying to load it while spoofing the IMacPro1,1 which does not support El Capitan. Hence the forbidden symbol.

With a MyBootMgr setup, either boot to El Capitan from RP or use the "OC_ALT" instance which does not spoof anything and only switches VMM on.

You do get the disadvantage of running with VMM so I would just use RP.
Actually never even occurred to try to boot into El Capitan via OC until you brought this up.
Always did this via RP as it is natively supported.
Thanks. Haven't tried the OC_ALT instance but will in a few moments. I only tried booting into El Capitan via OC to see if I could use system update to install a newer OS via system update.

Booting into 10.11 via RP is no issue at all.

On a side note, I've just installed Mojave on my MP3,1 and have successfully booted into it with OC v067. Everything except audio appears to work. System audio devices are not detected in Profiler, but external input devices such as my webcam is. I'm guessing one of the legacy kexts used for audio output doesn't support MP3,1 unless there's an issue with my config file? Any thoughts @cdf?
 
I'm guessing one of the legacy kexts used for audio output doesn't support MP3,1
Setup doesn't do anything specific on the audio side as personally didn't need such and didn't know enough on the subject.
You will have to investigate what kexts are needed and inject. OCLP adds VoodooHDA for cMP3,1. You can start by looking at that. Give feedback on what works.
 
Setup doesn't do anything specific on the audio side as personally didn't need such and didn't know enough on the subject.
You will have to investigate what kexts are needed and inject. OCLP adds VoodooHDA for cMP3,1. You can start by looking at that. Give feedback on what works.
Thanks, Dayo. Will research further. Still figuring out how to inject kexts manually.

Is there an automated, or semi-automated way of injecting additional kexts akin to what Hackintosh guys have with Clover?
 
Are there significant differences in the way v0.6.7 writes variables to NVRAM versus v0.6.6 if WriteFlash is set to 'False'? I ask because while I've been experimenting with RP/OC on my MP3,1, I'm hesitant to upgrade OC on my MP5,1 considering it's running perfectly fine with both Mojave and Big Sur 11.2.2. The only reason I'd upgrade it at this point is if changes to OC include additional protections to the SPI flash.

I know RP incorporated improvements in this area with v0.13.1.AA; just unsure if OC did the same.
 
PlatformFeature should be set to the failsafe 4294967295 (0xFFFFFFFF)
Fixed, see #89. How do you calculate that, Hackintool gives same result for 0xFFFFFFFF and FFFFFFFF:

1614745236742.png
 
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Btw, you can use "-1" instead of "4294967295". It applies for any "0xF ... F" value.
-1 is INT32 signed (see SetApfsTrimTimeout), 4294967295 is unsigned. I'm confused, the documentation states clearly to use the 0xFFFFFFFF value but it does not says if we should use signed or unsigned INT32:

1614747598319.png


Which one do we use @cdf, I need that calculator explanation. I opened #1543.
 
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This is directly from Vit while coordinating with him on edits to the docs. Wraparound maths as he described it. I suppose explicitly calculated value as cdf did is clear.

On calculator, you can use the in built one in Mac OS.
 
This is directly from Vit while coordinating with him on edits to the docs.
Let's see what Vitaly answers on #1543. If that is the case, I will use -1 for uniformity reasons.

Can you show a calculator conversion screenshot example?
 
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Hi all, I have updated to OC 0.6.7 using OCLP 0.0.11 into a USB Key to boot my Mac Pro 3,1 with Big Sur 11.2.2.
If I boot selecting the OpenCore EFI with the boot picker activated (opencanopy enabled), the Mac Pro hang.
If I disable the opencanopy the boot work well (text mode).

There is a fix for this issue on the boot picker?

Thanks
 
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