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Have difficulty installing Big Sur on my Ivy Bridge machine. I'm posting detailed error and what have I tried. I have tried everything I can think off.

Thanks for your time!

I've been trying for installing Big Sur Consumer Preview on my Catalina machine (swapping SSD so my catalina is still safe) this whole week. I'm really stuck and don't know how to proceed.

My machine:

  • Ivy Bridge i7-3770
  • RX 460 Sapphire
  • Gigabyte GA-H61M-DS2 Rev 2.2

The installation went alright, but always got kernel panic on first boot (where you put username and stuffs). Detailed error log is here: pastebin.

Snippets at the end of the error log:

... 231:697 00:479 OC: Prelinked injection WhateverGreen.kext () - Success 232:175 00:477 OC: Prelink size 68055040 kext offset 65114112 reserved 2940928 232:647 00:472 OCAK: KC TEXT is 65536 bytes with 50560 Mach-O headers need 696 233:145 00:498 OCAK: 64-bit AppleIoMapper replace count - 1 233:619 00:473 OCAK: Patch success com.apple.iokit.IOPCIFamily AppleIoMapper 234:100 00:481 OC: Prelinked status - Success 235:233 01:133 AAPL: #[EB|SB:P] 0x1 235:801 00:567 AAPL: #[EB|SB:SBGMFNS] j137ap.im4m 236:362 00:561 AAPL: #[EB|SB:MF] boot\\System\\Library\\KernelCollections\\BootKernelExtensions.kc.j137ap.im4m 236:924 00:561 AAPL: #[EB.LD.LF|IN] 0 1 <"boot\\System\\Library\\KernelCollections\\BootKernelExtensions.kc.j137ap.im4m"> <"0"> 237:452 00:528 OCI4: Verifying digest 48 (BAEDC0ED) override 1 48 (BAEDC0ED) 238:619 01:167 OCI4: Matching override C8EC19C1 with C8EC19C1 - success 239:181 00:561 AAPL: #[EB|SB:MKRN] 239:757 00:576 AAPL: #[EB.LD.LKFS|-?] Ok(0) 240:319 00:562 AAPL: #[EB.LD.LKC|-?] Ok(0) 240:881 00:562 AAPL: #[EB|FWFM] 0x00000000FF1FFF7F 241:444 00:562 AAPL: #[EB|FWFT] 0x00000000E90FF576 242:006 00:562 AAPL: #[EB|BST:REV1] 242:569 00:562 AAPL: #[EB|CSR:OUT] 0x000003E7 243:135 00:565 AAPL: #[EB.BST.FBS|+] 243:697 00:562 AAPL: #[EB.BST.FBS|ADSZ] 0 244:259 00:561 AAPL: #[EB.BST.FBS|KSSZ] 0 244:841 00:581 AAPL: #[EB|SB:SBGMFNS] j137ap.im4m 245:405 00:564 AAPL: #[EB|RH:PF] usr\standalone\OS.dmg.root_hash 245:970 00:564 AAPL: #[EB|RH:MF] <"usr\\standalone\\OS.dmg.root_hash.j137ap.im4m"> 246:534 00:564 AAPL: #[EB.LD.LF|IN] 0 1 <"usr\\standalone\\OS.dmg.root_hash"> <"0"> 247:101 00:566 AAPL: #[EB.LD.LF|IN] 0 1 <"usr\\standalone\\OS.dmg.root_hash.j137ap.im4m"> <"0"> 247:666 00:565 AAPL: #[EB.BST.FBS|RHPSZ] 229 248:233 00:566 AAPL: #[EB.BST.FBS|RHMSZ] 3626 248:751 00:517 OCSMC: SmcReadValue Key 4D535463 Size 1 249:268 00:517 OCSMC: SmcReadValue Key 4D534163 Size 2 249:832 00:563 AAPL: #[EB.B.WFDW|!WF] Err(0xE) 0 250:396 00:563 AAPL: #[EB|LOG:DT] 2020-10-28T14:21:27 250:960 00:564 AAPL: #[EB|LOG:EXITBS:START] 2020-10-28T14:21:28

I don't even know what cause the error.

What have I done:

  • My EFI work perfectly fine in Catalina (at least used to, before the modifications below)
  • OpenCore 0.63 pre-release and all kexts are the latest
  • Already ACPI patched for EC and CPU
  • Config.plist is all green on https://opencore.slowgeek.com/
  • Changed the SMBios to MacPro6,1 for BigSur
  • Added vsmcgen=1 boot-args for BigSur
  • set SecureBootModel to Disabled
  • Tried this method even though my motherboard is not an X99. Downloaded SSDT-UNC.dsl, compiled it to aml, put to acpi folder and put it inside config.plist. Got a same kernel panic and barely change the error log.

Here's my EFI, both debug and not debug. The files in ACPI are named like generic ACPI files since I was too lazy to fix the config.plist. They are actually dumped from the computer.

submitted by /u/Vaptor-
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