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thexorg

El Capitan on AMD FX CPU?

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hi,

how to install El Capitan on an AMD system? I found an AMD Kernel here: http://www.insanelymac.com/forum/top...pic/?p=2195566

but it already fails on install.

My system:
ASRock 970 Extreme3 R2.0
Legacy Boot
AMD FX4300
16GB RAM
GIGABYTE NVidia GTX 750 Ti
El Capitan Installer on USB Drive, attatched to USB 2.0 Port, Clover Bootloader

Booting installer with -v results in one line "+++++++++++++++++++++++", then rebooting without any message.

Do i need the AMD kernel to run installer? I didn't know where to put the kernel on install media, as there is no /System/Library/Kernels on the installer media.

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uefi motherboard is problem but possible ,

 

create files Kernels and past kernel in files in system/library 

 

created /System/Library/Kernels directory and pasted and "kernel" file in there.

tried to boot, nothing changed. seems like it still uses the vanilla, intel kernel.

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with Enock 2795 

 

<key>EthernetBuiltIn</key>

<string>Yes</string>
<key>KernelBooter_kexts</key>
<string>Yes</string>
<key>KernelPm</key>
<string>Yes</string>
<key>KernelLapicError</key>
<string>Yes</string>
<key>KernelLapicVersion</key>
<string>No</string>
<key>KernelHasswell</key>
<string>No</string>
<key>KernelcpuFamily</key>
<string>No</string>
<key>KernelSSE3</key>
<string>No</string>
<key>Kernel Flags</key>

<string>npci=0x2000 USBLegacyOff=No -v -f</string>

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with Enock 2795 

 

EthernetBuiltIn

Yes
KernelBooter_kexts
Yes
KernelPm
Yes
KernelLapicError
Yes
KernelLapicVersion
No
KernelHasswell
No
KernelcpuFamily
No
KernelSSE3
No
Kernel Flags

npci=0x2000 USBLegacyOff=No -v -f

 

Most of that should be in kernel.plist not in the boot file.

 

Use this bootloader instead of Clover, http://www.insanelymac.com/forum/files/file/71-enoch/

 

Try using this Extra folder. Replace yours in the root of the installer. Don't add any boot flags just now.

 

Extra.zip

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it will run, but not like what intel performs with the AMD boards..EL captain still broken on Intel boards with 970gtx and R9 290x support, some games runs, and others broken..i can't get to run Alien Isolation because nvidia web drivers are still not ready for 10.11 or its one those security problems with nvidia drivers...then SOMA underwater graphical glitches on AMD gpu's apple native drivers, not good even on Intel platform so stay at Yosemite that i have no issues at all with my Nvidia 970gtx web drivers, it ran Alien Isolation and SOMA  amazing FPS...but that was on native hardware that apple support only, Intel i7 cpu's with ddr3 2666, z97 

 

so i can't promise on AMD platform with custom kernels can perform almost Intel but you will see the mess of El Captain is not worth an upgrade yet...

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@thexorg Not sure if this will help, I too just faced somewhat similar issue on my AMD FX6300 Black Edition rig. I installed clover bootloader and I had to use nv_disable=1 npci=0x3000 USBBusFix=Yes -v

Make sure to untick the inject nvidia under graphics injection sub menu, and make sure to uncheck usb ownership, usb inject under pci injection sub menu. 

In the beginning, i thought i had to use the /amdfx  along with my boot args but as it turned i didn't have to. 

My specs: Gigabyte GA 78LM USB3 / AMD FX6300 Black Edition

128 Samsung SSD

MSI GTX 750 Ti OC

16GB DDR3

 

Almost identical as yours, and my plight was with Yosemite 10.10.5 anyways with the help of rc3 kernel. I installed fine, but now for some strange reason I can't seem to boot off from the main drive after the installation. Any one with any ideas, please let me know.

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      Enjoy
       
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    • By fusion71au
      This is a brief guide on how to create a vanilla El Capitan (also same process for Sierra) OS X Installer USB with an updated prelinked kernel containing FakeSMC.

      It is tailored for those users who want to understand the “nuts and bolts” of how to create an installer and also to help brush up on their terminal skills (rather than have one made for them with the numerous automated “tools” available or even Apple’s createinstallmedia) :
       
       
      Specifically, it is also a “Proof of Concept” which shows that installation is possible without even having to rely on boot loader kext injection.

      Prerequisites
      Existing Yosemite installation (or Mavericks - see post#4 for steps 7,8) “Install OS X El Capitan.app" downloaded to the Applications folder Pacifist FakeSMC.kext - Slice or Kozlek branch Bootloader - Clover or Chameleon 8GB or larger USB drive (16GB recommended), formatted HFS+ (MBR or GUID) named “Installer”  
      Procedure
      1.  Boot into Yosemite with the kext-dev-mode=1 boot flag
      2.  Open OS X terminal and type the following lines, followed by <Enter> after each line.
          The image restore and file copying may take a while to complete, and at the end of the process, the Installer volume is renamed to “OS X Base System"....
       
      sudo -s hdiutil attach /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/SharedSupport/InstallESD.dmg asr restore -source /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg  -target /Volumes/Installer -erase -format HFS+ -noprompt -noverify rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages cp -av /Volumes/OS\ X\ Install\ ESD/Packages /Volumes/OS\ X\ Base\ System/System/Installation cp -av /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg /Volumes/OS\ X\ Install\ ESD/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System diskutil unmount /Volumes/OS\ X\ Install\ ESD exit 3.  Right click on the “OS X Base System” Volume and click “Get Info”
       

      4.  Click on the lock icon and untick “Ignore ownership on this volume”
       

      5.  Extract/Copy the El Capitan Kernels folder into /System/Library/ of the USB with Pacifist.  NB It is found in the "Essentials.pkg" in /System/Installation/Packages
       

      6.  Delete or Rename the original /System/Library/PrelinkedKernels/prelinkedkernel —> OG.prelinkedkernel
       

      7.  Copy FakeSMC.kext and other necessary kexts (e.g. VoodooPS2Controller.kext for laptops) into the /Library/Extensions folder of the installer USB using Finder.
       

      8.  Back in terminal, type the following lines, followed by <Enter> after each line to rebuild the prelinkedkernel…..
       
      sudo -s chmod -R 755 /Volumes/OS\ X\ Base\ System/Library/Extensions chown -R 0:0 /Volumes/OS\ X\ Base\ System/Library/Extensions touch /Volumes/OS\ X\ Base\ System/System/Library/Extensions kextcache -u /Volumes/OS\ X\ Base\ System exit Any errors should be noted but the output below is normal e.g.


      9. Install your Bootloader targeting the OS X Base System volume
       
       
       
       
      10.  Boot your system with the USB without injected kexts into the OS X Installer GUI....
       
       
       
       
       
      Post Install
      The original prelinked kernel in a fresh install of El Capitan will also lack FakeSMC ie it will only be linked to Apple signed kexts.  In order to boot into El Capitan the first time around without boot loader kext injection, the PLK needs to be rebuilt for the El Capitan volume like we did for the installer:
       
      1.  Boot into Yosemite with the kext-dev-mode=1 boot flag
      2.  Delete or Rename the original /System/Library/PrelinkedKernels/prelinkedkernel for the El Capitan volume —> OG.prelinkedkernel
      3.  Copy FakeSMC.kext and other necessary kexts (e.g. VoodooPS2Controller.kext for laptops) into the /Library/Extensions folder of El Capitan using Finder
      4.  Back in terminal, type the following lines, followed by <Enter> after each line to rebuild the prelinkedkernel.  In this example, the El Capitan volume is named "El_Capitan" - change if you have named it something else...
      sudo -s chmod -R 755 /Volumes/El_Capitan/Library/Extensions chown -R 0:0 /Volumes/El_Capitan/Library/Extensions touch /Volumes/El_Capitan/System/Library/Extensions kextcache -u /Volumes/El_Capitan exit 5. Install your Bootloader targeting the El Capitan volume.  This step is only necessary if you are installing El Capitan on a new drive without existing boot loader (not required if installing on a disk with existing boot loader beside Yosemite).
      6. Reboot your system without injected kexts into El Capitan!
       
       
      Other links
      The All-In-One Guide to Vanilla OS X for beginners
       
      Updates for Sierra and High Sierra   Custom Prelinkedkernel Generator Tool I have made a custom prelinkedkernel generator "PLK.tool" for Sierra + El Capitan.  Instructions:   1.  Download and extract the attached BaseSystem_PLK.tool.zip into your ~/Downloads folder.   2.  Copy any extra kexts necessary for booting your hack to ~/Downloads/BaseSystem/ExtraKexts (e.g. FakeSMC, VoodooPS2Controller), making sure SIP is disabled. 3.  Copy BaseSystem.dmg to ~/Downloads/BaseSystem  4.  Open terminal and run the following commands... cd ~/Downloads/BaseSystem chmod +x PLK.tool ./PLK.tool ---> supply your admin password ---> will place your new custom prelinkedkernel on the desktop.       macOS High Sierra bypass Firmware and MBR checks in post#13.
      BaseSystem_PLK.tool_ElCap.zip
      BaseSystem_PLK.tool_Sierra.zip
      BaseSystem_PLK.tool_Mojave.zip (need to run in Mojave to avoid dependency errors)
      BaseSystem_PLK.tool_Catalina.zip
       
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