Recent content by Railgun

  1. Railgun

    Clover & Big Sur

    I went strictly with what the OpenCore guide suggests for SMBIOS, but that dose not mean it is the only one that would work or not. For example on my system I can use SMBIOS iMac19,1 and I am able to boot Catalina and Big Sur, however moving to iMac20,1 I can only boot Big Sur. So you have just...
  2. Railgun

    Clover & Big Sur

    Try this OpenCore EFI (attached). I made this with the info you provided above for CoffeLake CPU. I am not sure about BIOS settings for your board, however you say you are able to boot the Big Sur beta... I am guessing you have the settings correct. Also iMac19,1 is recommended. Unlike Clover...
  3. Railgun

    Clover & Big Sur

    I would go with OpenCore boot loader for Big Sur/Catalina.
  4. Railgun

    Mach reboot in Big Sur installation

    That is not much different in content from what I created, but we had DSMOS. Anyway... lets try an updated EFI (attached) and check the following settings in your BIOS. Onboard CNVI Module Control: Disable CFG Lock: Disable XMP: Enable IGD MULTI-Monitor: Enable I changed some things from the...
  5. Railgun

    Mach reboot in Big Sur installation

    That didn't work. I had deleted that post for BIOS settings because I was unsure (it was translated from here). I think #1 is OK for GPU, but the other settings I am not sure. Also while I did look at your motherboards manual (PDF), I it was not detailed. After getting to DSMOS, will need to...
  6. Railgun

    Mach reboot in Big Sur installation

    You should be able too. I am looking into BIOS settings, but not familiar with MSI. You just need to run with GPU and not integrated.
  7. Railgun

    Mach reboot in Big Sur installation

    Post #11 is same EFI with added GPU boot arg. Are you installing Big Sur? You will want to set the BIOS to the GPU and not the iGPU.
  8. Railgun

    Mach reboot in Big Sur installation

    by the way... if the last line after DSMOS says "cs_runtime"... give it sometime it may not be stuck.
  9. Railgun

    Mach reboot in Big Sur installation

    Not sure if it is the GPU, I added agdpmod=pikera to boot arguments (EFI attached). It is for 5000 series but maybe also needed for your 6800XT.
  10. Railgun

    Mach reboot in Big Sur installation

    DSMOS has arrived... we are getting somewhere.
  11. Railgun

    Mach reboot in Big Sur installation

    Can you test this EFI?
  12. Railgun

    Mach reboot in Big Sur installation

    I checked your new file.... For your motherboard I think you need to set SetupVirtualMap to True. I am not sure as mine has to be set to false. Here is a quote from the guide... Change your SMBIOS to iMac20,1 I do not think you can use 20,2 for your CPU (comet lake). My mistake I see that...
  13. Railgun

    Mach reboot in Big Sur installation

    Boot arguments should be like this <key>boot-args</key> <string>-v keepsyms=1 alcid=1</string>
  14. Railgun

    Mach reboot in Big Sur installation

    Which version of OpenCore are you using? Maybe the following is of help. Your missing SSDT-EC.aml and/or SSDT-EC-USBX-DESKTOP.aml see the table https://dortania.github.io/Getting-Started-With-ACPI/ssdt-platform.htm and look for all across Comet Lake but you may not need RHUB...
  15. Railgun

    USB 3.0 not working after update to Big Sur 11.3 and higher.

    USB port limiting dose not work with OC in Big Sur 11.3.x Check your ports and you should find all are open. USBInjectAll.kext (not up to date and not working), USBMap command (github) will show 15 but is incorrect, custom mapping will be ignored. You can have all ports open with any mapping...

Latest posts