Prohibitory Sign when I try to boot up

[jhan24]

Hi all this is my first hackintosh build so any help will be appreciated

I attached a picture in verbose mode.

Mobo: Asrock z370 Extreme 4
Processor: i7 8700 8th Gen

 

[P1LGRIM]

If it stops with the prohibitory symbol boot in verbose mode and post a picture of the screen when it stops.

 

[jhan24]

I attached a pic.

Thank you

 

[P1LGRIM]

I attached a pic.

"Still waiting for root device".
When booting from USB means that there is a problem finding a valid System folder to start up from on your USB flash drive.
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.
Try connecting your USB flash drive using a USB2 hub.
Ensure that Fast Boot is not enabled in your BIOS settings.
May require USBInjectAll.kext in /EFI/CLOVER/kexts/Other/.
May require XHCI-300-series-injector.kext or XHCI-200-series-injector.kext in /EFI/CLOVER/kexts/Other/ .
May need PMHeart’s patch to remove XHCI USB Port Limit in config.plist.

The problem may also occur when your USB controllers are unsupported, if this is the case you should add the appropriate kext to /EFI/CLOVER/kexts/Other/ or try GenericUSBXHCI.kext.

 

[jhan24]

Ok I’ll try the methods you listed.
Thank you so much!!

 

[jhan24]

So I have a usb stick that is 3.0 and all of the usb slots on the hackintosh are all 3.0 except one usb 3.1. I tried using the one usb 3.1 slot and it worked kinda. I got to the languages page and my mouse and keyboard don't work anymore LOL...

 

[P1LGRIM]

So I have a usb stick that is 3.0 and all of the usb slots on the hackintosh are all 3.0 except one usb 3.1. I tried using the one usb 3.1 slot and it worked kinda. I got to the languages page and my mouse and keyboard don't work anymore LOL...

The advice in Post #4 still applies.