Found this at opportunity of installing Home Assistant – from HA OS qemu2 image – boot process just stops into UEFI Shell prompt:

BLK0: Alias (s):
PciRoot (0x0) /Pci (0x1E,0x0) /Pci (0x1,0x0)/Pci (0x5,0x0) /Scsi (0x0,0x0)
BLK2: Alias (s):
PciRoot (Ox0)