snoopy32 Posted May 13, 2018 Share Posted May 13, 2018 I need a correct EFI string for booting with Enoch. Currently, I am on Yosemite with Chimera. The command ioreg -lw0 -p IODeviceTree -n efi -r -x | grep device-properties | sed 's/.*<//;s/>.*//;' > device-properties.hex doesn't provide a useable EFI string. I tested it with EFI Studio 1.1 and gfxutil. Both say that it is invalid. How to proceed now? I've attached the hex file from the command. device-properties.hex Link to comment Share on other sites More sharing options...
snoopy32 Posted May 13, 2018 Author Share Posted May 13, 2018 (edited) It was my intention to use the EFI string from my working Yosemite installation with my Enoch-El-Capitan USB pen drive. But I'm not sure anymore whether a faulty injection caused it not to boot into the installer. I would like to change the Info.plist files of the respective driver kexts of El Capitan 10.11.6. I think missing entries in IOPCIPrimaryMatch resulted in the black screen. Would you be so kind and tell me which kexts to modify on the pen drive? I managed to find out the value to insert: 0x10c310de I hope it will work with GraphicsEnabler=Yes then. Edited May 13, 2018 by snoopy32 Link to comment Share on other sites More sharing options...
LockDown Posted May 13, 2018 Share Posted May 13, 2018 (edited) I used to have that card. My chameleon setting was: GraphicsEnabler=Yes NVCAP_10c3 0400000000000300180000000000000700000000 No EFI string needed. Had to use NVCAP_10c3 else blackscreen Edited May 13, 2018 by ellaosx Link to comment Share on other sites More sharing options...
snoopy32 Posted May 14, 2018 Author Share Posted May 14, 2018 Many thanks to you, ellaosx. I haven't thought of NVCAPs. Would you tell me which card exactly you used? My fault I didn't specify mine. I have the 512MB version, to be precise, a card with the part number 512-P3-1301-KR. Please google for a picture of the wrapping. I ran NVCAP maker on a rom with the version 70.18.5F.00.02 for an EVGA GeForce 8400 GS 512MB card with ID 10de:10c3:3842:1300. It gave me: 0400000000000300080000000000000700000000 Your NVCAP was 0400000000000300180000000000000700000000 That's only a minimal difference. That rom was the closest I could find fitting my specification. Enoch reported my card as: EVGA GeForce 8400 GS 512MB NVa8 [10de:10c3]-[3842:1301] The rom with the version 70.18.5F.00.02 is same on both cards if version numbers identify the rom. And it would also define the port layout as the same. And only to repeat, many thanks. Link to comment Share on other sites More sharing options...
LockDown Posted May 15, 2018 Share Posted May 15, 2018 Sorry, i can no longer recall the exact details of it. its an Asus 8400 GS 512MB with the same device id as yours (10c3) Link to comment Share on other sites More sharing options...
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