/union/sbin/modprobe: not found on boot

[Guccieii]

Good afternoon,
I followed the whole procedure on Mac OS X Mojave but when I load the .iso from a Virtual Machine I get the following error on VM’s boot.
/union/sbin/modprobe: not found

[serk7]

Set to boot on EFI from virtual box settings

[aghoneim92]

When booting to EFI, the EFI shell opens instead of the OS, any help?