Edit From Shaneee: This topic is only for kernel testing and development. Any help questions regarding the installation should be made at the locations below,
Installation help - http://www.insanelym.../forum/637-amd/
Post Installation help - http://www.insanelym.../forum/641-amd/
Please list your current system specs like CPU, Motherboard, Graphics card etc.. in your signature line. This will help others with similar builds to offer help if they know a solution.
Bronya Kernel HS 10.13 for Ryzen testing.. http://www.insanelym...ttach_id=262897
Here is a link to a video to create a USB installer from XCiLNZ: http://www.insanelym...18#entry2514401
Here is a link for Ryzen USB install it has modified scripts for Ryzen CPU/Motherboard. http://www.insanelym...24#entry2519914
High Sierra is working on AMD systems using the above linked kernels and system kexts. You can add kernel and System kext to an existing High Sierra drive or clone, or follow the USB installer and load a fresh install.
There are many different motherboards with very different bios, USB port, overclocking, and memory/sata/nvme layouts. Fixes for one person may not work for someone else, don't get frustrated, try something new. There may not be any one configuration that works for everybody.
Please use these threads for help with Installation and post installation questions.
Some Professional App issues and or fixes on this thread for Ryzen systems.. http://www.insanelym...e-running-test/