Asus Z170 RX 580 road from Mojave clean install -> Catalina upgrade

[exuded]

Hey guys,

I hope you can help me out here.
I installed macOS Mojave following the mojave guide and used this post which used a very similar Mainboard like me.

My build:
- Asus Z170 Pro Gaming
- Intel i5 6600K
- Sapphire Radeon RX 580 8GB
- Intel 660p 1 TB M.2 SSD

The Problem: I booted from a USB Drive created by Unibeast and succesfully installed Mojave on the M.2 SSD. After setting up the Username etc., I used Multibeast and Clover Configurator and Hackintool to Copy and install the clover configs and kexts out of the post mentioned above.
Then I shutted down, removed the USB Install Drive and wanted to boot from the new Clover bootloader from the M.2 SSD's EFI.
But then I got the following errors, followed by the prohibited sign:

What can I do to solve this?

 

[pastrychef]

As per forum rules, please update your profile to include your CPU, motherboard, and GPU. It makes it much easier for other to help you.

Try booting up from your USB installer. Once you get in to macOS, mount the EFI partition of your M.2 SSD and replace the entire EFI folder with the one I've attached.

 

[exuded]

I just updated my profile, sorry.
I also replaced the EFI folder. Now it‘s stuck at the Apple logo without progress bar and the following error codes:

 

[pastrychef]

I just updated my profile, sorry.
I also replaced the EFI folder. Now it‘s stuck at the Apple logo without progress bar and the following error codes:

Please try again with this EFI.

 

[exuded]

Please try again with this EFI.

Tried it and got the following output:

 

[Feartech]

Tried it and got the following output:

try disabling your serial ports in your bios

 

[pastrychef]

Tried it and got the following output:

In addition to disabling serial ports, please make sure that "primary display" is set to your RX 580 in BIOS. Also, monitors should ONLY be connected to your RX 580.

 

[maclinuxg4]

fill with our uuid and system. try this

 

[exuded]

In addition to disabling serial ports, please make sure that "primary display" is set to your RX 580 in BIOS. Also, monitors should ONLY be connected to your RX 580.

I disabled Serial Ports in UEFI and set primary graphics to PCIE. The Monitor is plugged in to the RX 580 only.
The result is slightly different to the one before:

 

[Feartech]

I disabled Serial Ports in UEFI and set primary graphics to PCIE. The Monitor is plugged in to the RX 580 only.
The result is slightly different to the one before:

your serial port is still enabled: