OpenCore General Discussion

[Jief_Machak]

@Download-Fritz Do you mean that some Frequency values are written to datahub and used by AppleALC. With PlatformInfo/UpdateDataHub to false, some frequencies are wrong, hence the sound problem. Am I correct ?

[vit9696]

Not by AppleALC but by macOS. This is the basics for making macOS work on non-Apple hardware.

Edited September 20, 2020 by vit9696

[Jief_Machak]

Ok.
Why can it be disabled if it's basic ? To be able to run on Apple hardware ?

[vit9696]

Of course. And not just Apple, but also some virtual machines.

[fuzzylogic]

change from opencore 0.6.1 to opencore 0.6.2

shows no boot options when opencore 0.6.1 worked

trying to find the correct settings for DMGLoading currently set at any and secure boot set to default does not work, setting secure boot to disabled 

does not load opencore bootloader.

Motherboard Asrock 390 

cpu intel 9900k

tried to use the checking utilitie but bigsur blocks it when run via terminal

 

config.plist.zip

[Matgen84]

8 hours ago, fuzzylogic said:

change from opencore 0.6.1 to opencore 0.6.2

shows no boot options when opencore 0.6.1 worked

trying to find the correct settings for DMGLoading currently set at any and secure boot set to default does not work, setting secure boot to disabled 

does not load opencore bootloader.

Motherboard Asrock 390 

cpu intel 9900k

tried to use the checking utilitie but bigsur blocks it when run via terminal

 

config.plist.zip

Hi @fuzzylogic set DMGLoading to Signed. ProtectSecureBoot = false, SecurebootModel = Disabled. Have a look to Dortinia Guide Coffe Lake section Complete your config.plist with Differences.pdf if needed. For example for your config.plist, Processortype = 0 is missing in Generic section.
Imac19,1 SMBIOS is recommended for your config instead of macpro7,1.

Good luck 

[ANTIKO]

Good afternoon, Matgen84, please excuse me for a possibly stupid question. Which Processortype would you recommend to me? the fact is that when loading the OC, a message appears about Processortype = 0 is missing in Generic section . It's not critical, but it's a little annoying. I haven't found any information yet. Thanks

Edited September 21, 2020 by Антико

[ghost8282]

4 hours ago, Антико said:

a message appears about Processortype = 0 is missing in Generic section

ProcessorType = 0 is always recommended in 99,9% cases, with Automatic = true

You are missing ProcessorType in the generic section of your config.plist

	<key>PlatformInfo</key>
	<dict>
		<key>Automatic</key>
		<true/>
		<key>Generic</key>
		<dict>
			<key>ProcessorType</key>
			<integer>0</integer>

 

[Planet X]

On Dorian install Guide for Coffee Lake it is written:

EnableWriteUnprotector: NO
This quirk and RebuildAppleMemoryMap can commonly conflict, recommended to enable the latter on newer platforms and disable this entry.

Who can tell me if it is also recommended to disable RebuildAppleMemoryMap and SyncRuntimePermissions as well when I cannot disable EnableWriteUnprotector? When I disable EnableWriteUnprotector I can't boot anymore. So it seems to be needed on my Z370 Prime-A board. Even with the latest BIOS. What can be the reason that I cannot disable it even when it's stated on the Guide that I should disable it? Please help.

[iCanaro]

12 minutes ago, Planet X said:

Who can tell me if it is also recommended to disable RebuildAppleMemoryMap and SyncRuntimePermissions as well when I cannot disable EnableWriteUnprotector? When I disable EnableWriteUnprotector I can't boot anymore. So it seems to be needed on my Z370 Prime-A board. Even with the latest BIOS. What can be the reason that I cannot disable it even when it's stated on the Guide that I should disable it? Please help.

 

don't disable it
who writes guides, doesn't test the things he writes about all the available hardware
if you have to enable that quirks to start, that's fine.
 

[Avery B]

29 minutes ago, Planet X said:

On Dorian install Guide for Coffee Lake it is written:

EnableWriteUnprotector: NO
This quirk and RebuildAppleMemoryMap can commonly conflict, recommended to enable the latter on newer platforms and disable this entry.

Who can tell me if it is also recommended to disable RebuildAppleMemoryMap and SyncRuntimePermissions as well when I cannot disable EnableWriteUnprotector? When I disable EnableWriteUnprotector I can't boot anymore. So it seems to be needed on my Z370 Prime-A board. Even with the latest BIOS. What can be the reason that I cannot disable it even when it's stated on the Guide that I should disable it? Please help.

 

The troubleshooting section touches on this - it depends on if the firmware has MATs support or not. If it does, then you need SyncRuntimePermissions and RebuildAppleMemoryMap, otherwise you need EnableWriteUnprotector. We can make generalities about what most motherboard firmwares will do for a given generation, but it can always differ between brands and bios versions. So go with what works.

Edited September 21, 2020 by 1Revenger1

[fuzzylogic]

15 hours ago, Matgen84 said:

Hi @fuzzylogic set DMGLoading to Signed. ProtectSecureBoot = false, SecurebootModel = Disabled. Have a look to Dortinia Guide Coffe Lake section Complete your config.plist with Differences.pdf if needed. For example for your config.plist, Processortype = 0 is missing in Generic section.
Imac19,1 SMBIOS is recommended for your config instead of macpro7,1.

Good luck 

Thanks that solved my problem setting DMG to signed,

thanks once again

[Dec_Bra1n]

Hey guys I am trying to get full resolution on OC boot loader screen on my below laptop previously I was using clover where I was using PatchVBios option to get full resolution (1366) on clover boot screen without of that I got 1024 (Stretch Apple logo while boot)

 

PS:- I am getting 1024 resolution on OC hence while booting MacOS my pale logo got stretch once booted everything is work fine.

 

HP DV6 6121TX

Intel HD 3000 non metal (i7 2630QM)

AMD 6770M 2GB disable from Bios

8GB ram and 128 SSD + 1TB HDD 

[fuzzylogic]

recent update to opencore 0.6.2 from 0.6.1 issue cannot open security and Privacy it returns an error, the error reads that there is a preferences error, if anyone would be so kind as to have a look at my config file, probably around security? my motherboard is an Asrock 390 with intel processor 9900k

nvme samsung

config.plist.zip

[chris1111]

any one knows how to hide EFI partition in boot picker ?

I try 

 <key>HideSelf</key>
 <false/>

 Not working

 

 <key>HideSelf</key>
 <true/>

 Not working

 

thanks in advance

 

 

 

 

Edited September 23, 2020 by chris1111

[chris1111]

10 minutes ago, LIMITANT said:

Secret is ScanPolicy : 65795

no HideSelf by the way its HideAuxiliary now

Got it

thanks 

Edited September 23, 2020 by chris1111
Got it

[ANTIKO]

Help with audio settings is required. After replacing the Board, there were problems with the sound. I can't configure it for 3 days. If I specify Layout(any), the system load stops at "IO Console Users: gIOScreenLock...". What could be the reason? Thanks.

Edited September 24, 2020 by Антико

[chris1111]

13 hours ago, LIMITANT said:

ScanPolicy : 65795 will hide HFS partitions , make it 0 during installation process or if you are using any HFS system 

Ok EFI is hide now but also Windows and USB install Drive . Any solution again 

[ghost8282]

On 9/8/2020 at 6:26 PM, ghost8282 said:

edk2-OVMF stable 202008 released 5 days ago works good with opencore!

mmm..not really...with BigSur there seem to be issues with SIP, it was not possible to have status "enabled" or "disabled", always "unknown" even if all the entries were listed as "enabled" or "disabled".

This also prevented the update from beta 7 to beta 8 and from beta 6 to beta 8.

Copying back OVMF_CODE.fd and OVMF_VARS.fd from stable 202005 solved all these issues.

[chris1111]

4 hours ago, LIMITANT said:

I don't use Windows.. I'm sorry .. this is the best result i got for my configuration... 

Let me test some other values and report back 

 

Try : 67843 or 71939

I tested both and they don't work, thank you for your effort very much appreciate.

Anyway it seems to be complicated to hide a simple EFI partition...

[Ellybz]

23 hours ago, chris1111 said:

any one knows how to hide EFI partition in boot picker ?

Here's my method to find the proper ScanPolicy value:

 

1- Let’s say your config has Windows (NTFS) & MacOS (APFS + HFS ) on Satas & NVMe Drives, but you’d also like to scan your USB for OS Installation purpose.

1- Enter your Calculator in MacOS ( to enter Programmer mode press: CMD+3 )

this window will appear:

 

2- Without entering any numeric values, click on the desired binary value ( in front of the arrow ) to switch it from 0 to 1 ( 0= False / 1=True )

By doing so the big Hex value will appear:

Now we have:

FSL + DL+ APFS+HFS + NTFS+SATA+SAS/Mac NVMe +NVMe+USB. = 0x2B0B03

0 + 1 + 8 + 9+ 11 + 16 + 17 + 19 + 21 = 0x2B0B03

( Note that if the ESP Value = 0 ( Bit10 ) no EFIs will be scanned.)

 

3- Converting that HEX value to Decimal ( Any Hex Converter will do )

0x2B0B03 -> 2820867

 

Your New Scan Policy is now: 2820867

 

Done!

Edited September 24, 2020 by Ellybz

[chris1111]

6 minutes ago, Ellybz said:

Here's my method to find the proper ScanPolicy value:

 

1- Let’s say your config has Windows (NTFS) & MacOS (APFS + HFS ) on Satas & NVMe Drives, but you’d also like to scan your USB for OS Installation purpose.

1- Enter your Calculator in MacOS ( to enter Programmer mode press: CMD+3 )

this window will appear:

 

2- Without entering any numeric values, click on the desired binary value ( in front of the arrow ) to switch it from 0 to 1 ( 0= False / 1=True )

By doing so the big Hex value will appear:

Now we have:

FSL + DL+ APFS+HFS + NTFS+SATA+SAS/Mac NVMe +NVMe+USB. = 0x2B0B03

0 + 1 + 8 + 9+ 11 + 16 + 17 + 19 + 21 = 0x2B0B03

( Note that if the ESP Value = 0 ( Bit10 ) no EFIs will be scanned.)

 

3- Converting that HEX value to Decimal ( Any Hex Converter will do )

0x2B0B03 -> 2820867

 

Your New Scan Policy is now: 2820867

 

Done!

Wow  I will test  thank you

[Andrey1970]

2 hours ago, Ellybz said:

Let’s say your config has Windows (NTFS)

NTFS isn't required for UEFI Windows.

Bootloader UEFI Windows is located on ESP.

[obus]

21 hours ago, chris1111 said:

Ok EFI is hide now but also Windows and USB install Drive . Any solution again 

I think this is what you are looking for:

ScanPolicy > 722179

[chris1111]

3 hours ago, obus said:

I think this is what you are looking for:

ScanPolicy > 722179

Thanks @obus Try that EFI Partition is show again; windows is visible that's ok

@Ellybz 2820867 EFI is hide but also windows and USB installer

Edited September 25, 2020 by chris1111