I have installed ESXi on a NUC D54250WYK. Without any human intervention i receive the message "bootable device has not been detected" on boot. However, if I load the boot menu (F10) I am prompted with the only bootable device installed (Toshiba SSD), and the OS loads without an issue from here.
I have disabled UEFI and secure boot options as well as placing the SSD as the first boot option under legacy boot. Can anybody think of any thing I may be missing?
Let me guide you with this.
It is important to say that you must have validated hardware on the unit to install the Operating System and have it working properly.
My best recommendation at this point is to check with VMware the compatibility between the Operating System and the hardware or you can visit their website for further information: