[Solved] Can’t load installer

[Atown]

Hey guys and gals, I was hoping to get some help. For some reasons I cannot even load the installer for high Sierra. Any advice at all would be amazing. The only boot flag I’m using in this photo is the default flags plus -v. I’ve tried other bootflags such as -x -f and a few other but when I do that it doesn’t get as far as just -v

My system:
i5 8600K
16GB ballistix sport LT
AMD sapphire PULSE RX 580 8GB
Samsung evo 500gb ssd
Gigabyte z370p d3

 

[BreBo]

@Atown, please update your profile (personal details) with your Motherboard, CPU and iGPU or Graphics Card(s).

Profiles are mandatory so that others can assist you.

Change XHCI Hand-off to Enabled in your BIOS.

 

[Atown]

@Atown, please update your profile (personal details) with your Motherboard, CPU and iGPU or Graphics Card(s).


Change XHCI Hand-off to Enabled in your BIOS.

I wrote my specs down on the post

 

[Feartech]

I wrote my specs down on the post

in your profile please and not some random post

 

[Atown]

in your profile please and not some random post

Okay it’s in my profile now sorry

 

[cmn699]

Okay it’s in my profile now sorry

The verbose boot screen shows an incipient "Prohibited entry sign Error"
This is due to a problem accessing files from your USB installer due to some problem with USB port.
The can be from any of the following :
your CLOVER/kexts folder does not have the right kext to support USB Controllers.
Your BIOS setup has a missing option needed for USB controller
Your USB installer Flash drive is inserted in a port that has a tendency to lose Power during boot.
Your USB flash drive may have some defect(rare)

This question has been answered many times in the Forum but only after you can show a "Prohibited Entry Sign" often after a garbled text on screen. Check this ->#2

I expect your Monitor screen to degenerate into displaying just that in a few minutes after the screen you have uploaded.
Relevant early sign is edited from your image and uploaded.

 

[Atown]

Thank you for the information! Enabling XHCI Hand-off allowed me to run the installer. I’m currently installing High Seirra on my SSD I will update in a few minutes and let you guys know if it was successful. Seriously thank you so much for the help!

 

[Atown]

High Seirra install was a success! I just used multibeast and completed the post installation. Now I suppose I just need to do a little digging to see what does and doesn’t work. Thank you very much! You guys are the best!

 

[cmn699]

High Seirra install was a success! I just used multibeast and completed the post installation. Now I suppose I just need to do a little digging to see what does and doesn’t work. Thank you very much! You guys are the best!

Thank you for confirming the cause of "Prohibited Entry Error" was from a missing option in BIOS USB controller menu.
Good luck with the rest of Post install tuning.