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ThinkPad E480 - Catalina/Big Sur Boot issues (OpenCore)


Rafael Siqueira
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Hey,

 

I'm trying to boot and install Catalina (or Big Sur) but I'm facing a boot error that's not so clear to me. The message "can't perform kext scan" is not helping much.

 

The bootable usb was created based on this repo: https://github.com/SukkaW/ThinkPad-E480-Hackintosh. I've made small changes to enable some debug message.

 

My hardware is almost the same (without the manual changes).

 

Computer Model

ThinkPad E480 (2018)

CPU

Intel Core i7-8550U

Memory

DDR4 2x8GB

Integrated Graphics

Intel UHD Graphics 620

Discrete Graphics

Radeon (TM) RX 550 (2 GiB) (Disabled using WhateverGreen)

Others (lspci from ubuntu)

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)


00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1d.2 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #11 (rev f1)
00:1d.3 PCI bridge: Intel Corporation Device 9d1b (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point LPC Controller/eSPI Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
02:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Lexa PRO [Radeon 540/540X/550/550X / RX 540X/550/550X] (rev c0)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter
06:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)

 

Thanks in advance,

Rafael Siqueira

IMG_0422.JPG

EFI.zip

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You've got lots and lots of patched SSDTs + ACPI patches. Then some of your Quirks are incorrect. You should try with the minimum but set of parameters recommended for Kaby Lake or Coffee Lake laptops at Dortania. With regards to the property injection you've configured for UHD620, all looked Ok except the injected ig-platform-id and I can't help thinking it should be 09005916.

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