no ******* joke i struggled for 20 hours, on a 10.11.6 sec 2 to 10.12.2 upgrade...... and i wouldnt post my idiocy on this forum because i knew that the answer was here somewhere. i gave up for 24 hours and came back afresh...
Known issue #1: Having HDMI audio enabled on the Skull Canyon NUC causes panic/reboot in when the update/installer is booted. There are several ways to work around this issue, I will suggest three options below:
1) Boot with FakeID 0x1 (Clover Options, Graphics Injector, FakeID, set to 0x1). Once you boot into the system and rebuild cache, you can boot normally.
2) Use a properly prepared USB to boot the installer. The USB does not have patched ACPI, therefore no "hda-gfx" injection, therefore no HDMI audio support, therefore no panic/reboot.
3) Prior to attempting to boot the update/installer, you can disable "hda-gfx" injection by editing the SSDTs that are in ACPI/patched. In my case, I edited the *.dsl files (commented out the relevant "hda-gfx" line from SSDT-IGPU.dsl) and used 'make install_sc' to install the updated files. After updating, I restored the "hda-gfx" injection and installed again with 'make install_sc'.
Fresh eyes showed me this problem solved of course to complicate things i am running a NVMe 950 samsung so all the traditional methods of fixing a broken mac were non starters. Thanks Rehebman for the documentation
I spent 10 hours stuck on kernal panic on boot. so i was sure i was doing something wrong. so did the entire thing over again 3 times. all the way back to new clean thumb drive 3 times rebuilding it installing it 90min or so tied up to the point of a kernal panic when all she needed was a 0x1 hdmi/audio KP. hurray.
It might be worthwhile noting that verbose mode was throwing at me error wise gave me not many leads "KDP_poll no debugger device" I knew it was video related. but it was as much audio related as video
https://www.google.com.mx/search?q=...efox-b-ab&gfe_rd=cr&ei=fX9aWISiKPDy8wf446XQCA
results are primarily all pre 2010..... so it didnt help much. hopefully this written here will help someone