Installer stuck at "AppleNVMe assert failed" with OpenCore (following Dortania guide)

Motherboard: Gigabyte Z170X Gaming 5
CPU: i7-6700k (Skylake)
GPU: Gigabyte Radeon RX 5700 XT

I previously was running High Sierra and a GTX 970 with Clover... After swapping the GPU, I can get it to boot as-is, but only one monitor works, and the graphics are super glitchy.

I figured I might as well re-configure everything with OpenCore and upgrade to Catalina (one of the reasons I got a new AMD GPU).

I followed the guide here:,made all of the config.plist modifications for Skylake, and used SSDTTime for generating SSDT-PLUG.aml and SSDT-EC.aml (and grabbed an off-the shelf SSDT-USBX, because that's needed for Skylake as well). Confirmed everything looked okay with the slowgeek sanity checker.

But... I can't get the installer to boot. It fails with "AppleNVMe assert failed" (I tried both USB2 and USB3 ports as well, because I've seen that as possible reason.)

Here's a link to the log and the structure of my EFI partition:

Not really sure what else to try at this point... I vaguely remember running into this issue with the Clover setup as well.. I think with Clover, the "Rename SAT0 to SATA" patch fixed it, but I'm not entirely sure.

Let me know if you need any additional information.

submitted by /u/brojack_norseman
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