Still wating for root device. (motherboard: epc621d8a, no usb 2)

I get "Still wating for root device" and forbid symbol when I preinstall Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina with usb boot.

My motherboard is epc621d8a, and it has usb3 only.

I have tried USBInjectAll.kext , but not work.

Any ideas?

Author: @0x00001111