Prohibitory Sign on Install

[DeepLZ]

I’ve tried this multiple times. The entire bar loads, then turns into a prohibitory symbol. I have tried it in multiple USB ports. My specs are under my profile. Thanks for any help!

 

[P1LGRIM]

May require USBInjectAll.kext in /EFI/CLOVER/kexts/Other/.
May require XHCI-200-series-injector.kext in /EFI/CLOVER/kexts/Other/ .
May need PMHeart’s patch to remove XHCI USB Port Limit in config.plist.

 

[DeepLZ]

I’ll give this a shot. Thanks!

 

[DeepLZ]

I tried this, and still no luck. Any other suggestions?

 

[djdrah]

I tried this, and still no luck. Any other suggestions?

i had the same issue, and mine was booting in verbose mode. when the prohibitory sign showed up, it garbled the verbose text being echoed on-screen and just hung there. I was in the process of trying all my USB ports with the unibeast installer, with only mouse/keyboard plugged in. The USB port I used prior on my board worked once, but not a second time after attempting to unsuccessfully apply a terminal command to avoid APFS. Anyhow, I was looking at the prohibitory sign, thinking it failed again, and I couldn't read anything on screen, so before hard shutting down the computer by holding power down, i grabbed the USB Unibeast installer disk and moved it to the next port I tried (USB 3.1, red port) and began to hold down the power button. But before I could hold the button down long enough, the prohibitory sign disappeared and the text cleared up and the installer continued to boot!

Then I installed Mac OS X (High Sierra)!

 

[salexmatei]

i had the same issue, and mine was booting in verbose mode. when the prohibitory sign showed up, it garbled the verbose text being echoed on-screen and just hung there. I was in the process of trying all my USB ports with the unibeast installer, with only mouse/keyboard plugged in. The USB port I used prior on my board worked once, but not a second time after attempting to unsuccessfully apply a terminal command to avoid APFS. Anyhow, I was looking at the prohibitory sign, thinking it failed again, and I couldn't read anything on screen, so before hard shutting down the computer by holding power down, i grabbed the USB Unibeast installer disk and moved it to the next port I tried (USB 3.1, red port) and began to hold down the power button. But before I could hold the button down long enough, the prohibitory sign disappeared and the text cleared up and the installer continued to boot!

Then I installed Mac OS X (High Sierra)!

I'm having issues starting the installer myself. If it's as simple as just moving the stick around I'm gonna have a laugh.

 

[djdrah]

I’ve tried this multiple times. The entire bar loads, then turns into a prohibitory symbol. I have tried it in multiple USB ports. My specs are under my profile. Thanks for any help!

Try moving your install USB Unibeast disk to a different port after you get the prohibitory sign. (worked for me, ymmv).

 

[DeepLZ]

I finally read the verbose text. It says “Still waiting for root device”

 

[djdrah]

Yea, there are many posts on that topic... try moving the disk too, if that doesn't work, search for "Still waiting for root device"