{69} boot a GPT VHD from a GPT NVMe in RAM in BIOS rather than UEFI
title Win10 - RAMDISK NVMe
nvme --set-drive=0x80 --set-controller=0 --showselected
find --set-root --ignore-floppies /bootmgr.vhd
find --set-root --ignore-floppies /gpt.vhd
map --mem --heads=0 --sectors-per-track=0 /bootmgr.vhd (hd0)
map --mem --heads=0 --sectors-per-track=0 /gpt.vhd (hd1)
map --hook
nvme --uninit
root (hd0,0)
chainloader /bootmgr
I only use a 500MB MBR VHD for the bootmgr.