Booting from USB thumbdrive solved (kinda--see below in my "longer explanation"*). Boots to Clover, and about 10 seconds after starting the installer it would reboot (it wouldn't even make it as far as the progress bar). In verbose mode the messages would flash by too quickly.
I'm going to go through the
(comprehensive) guides again to see if I missed anything, but I've attached my CLOVER folder (BTW, the config-sys.plist is from
syscl, which I used to modify the config. plist (for some reason his config.plist made the keyboard/mouse VERY unresponsive in Clover so moving around was very difficult, so I modified it).
Do I need to swap out the WiFi card before? I turned off both WiFi and BT in bios and it doesn't make a difference. Also tried booting into safe (-x) mode, which also didn't make a difference.
Note: for my SK hynix PC300 nvme I reformatted into 4K using an Ubuntu 17 Live USB with smartmontools and nvme.
Not sure what to do next except maybe to copy over the install files using terminal to replace the Unibeast created version. Any advice would be appreciated.
*A longer explanation of the USB issue (which probably is unrelated?):
For whatever reason, my XPS does not like GPT-formatted USB thumbdrives** and they won't show up in the boot screen--I even tried creating a Windows 10 install USB with GPT using Rufus (i.e., only a Windows 10 on the USB). It would only show the USB drive only when I had formatted the USB in MBR. On OSX, in terminal:
diskutil partitionDisk /dev/disk3 2 MBR FAT32 EFS 200M jhfs+ Untitled R
before I used Unibeast to copy over the High Sierra install files.
I tried this with both USB 2 (HP, cruzer, Sandisk) and 3 (1x Sandisk) sticks. Secure boot turned off, legacy boot turned off (don't think that makes a difference, can try later, but bigger fish to fry).