Thank you...Dr. Strange.... I found a thread worked it now I have to ensure I install the correct drivers kext and whatever else... need help
Success so far(using the cut and past method) this Mojave upload was successful in frustration and back to back reboots!!!
My dual boot is no longer working windows 7 works fine but attempting to log into Mac side failed
ASUS Z97 Pro 3.1
Intel I7
Best Buy on Sale AMD radeon 570 and 580 GPU- same price as used ones on ebay. (Nvidia EV3A GTX 1060 6g has been scratched)
32 Ram
SSD 250G running Sierra. and 250 SSD Running Mojave
OS 10.14.2
OS 10.12
Windows 7
PROFILE
macOS Mojave
Imac 27inch late 2013
4 GHZ Intel Core I7
memory 32 GB 1600 Mhz DDR3
Graphics display Radeon RX 580 8192 MB
Update January 21 2019 2230
It was easier to install two separate OS on SSDs (while running El Capitan). no more reinstalling the entire software.
If a kext does not work in Mojave, I log into Sierra and go into system/library/ext (or wherever the kext I just loaded that crashes the system) and delete it. Also I have been able to salvage from other systems to get sound and network (wifi) using the approbate kext wizard or kext beast.
Right now... MOJAVE has sound, Wifi, and 5 independent screens- no bluetooth or ethernet
... Sierra has ethernet, and 5 independent screens no sound, no bluetooth and no wifi
