[Solved] Stop sign on install High Sierra H270N-WIFI

[asleb]

I followed the guide for direct install of High Sierra: https://www.tonymacx86.com/threads/...t-upgrade-fresh-install-on-h270n-wifi.233433/ and did the BIOS changes. I downloaded a fresh High Sierra Install. I can boot from the USB but after the progress bar I get a stop sign.

My setup:
- Gigabyte H270N-WFI
- Intel i7 770K
- Samsung EVO 960 500GB M.2

I attached the USB install to on of the USB 3.0 ports.

I tried to enter in config on Clover boot:
- USB Ownership - ON
- USB Injection - ON

The install starts, then I get the stop sign. Is there any information in the screenshots that can help?

 

[P1LGRIM]

"Still waiting for root device".
When installing this means that your USB flash drive cannot be found.
This is usually because the flash drive is in a USB3 port.
If this is the case move it to a USB2 port, if it is already in a USB2 port move it to another and try again.
Repeat until you have tried all USB ports.
Use a USB2 flash drive.
If it still doesn't work you could try another flash drive.
You might also try enabling Legacy on your USB3 ports in your BIOS settings.
If you only have USB3 ports try with your USB flash drive in a USB2 hub.

 

[asleb]

Thanks so very very much!
I suspected it was a USB issue since I saw a lot of USB stuff in the console. Now I am on my way

 

[asleb]

Hi, I was able to install OS X High Sierra. After every reboot I chose Macintosh HD (where I installed OSX) but it starts up then goes to black screen. I can see the boot in verbose mode and it seems ok. But then it just goes to black.

 

[asleb]

## UPDATE ##
The problem must be my MSI Radeon RX560 graphics card. I removed it and tried to insert fake graphics ID on boot. I am now in! Trying now to find out how to get the WIFI card to work and my MSI Radeon RX560 card.