grub2 - add NVME to boot from - how?

[lejeczek]

hi guys

I've tried around some other mailing lists with no luck and then I 
thought what's better than the very thing itself.

How to add NVME to grub? And what mean by "add" is: that you already 
have grub2 booting off whatever you have it on, then you add another 
device, nvme in this case, and you add it to grub2 as/with chainloader, 
so as a result grub will have yet another entry to chainload to 
another(windows) boot on that nvme.

This is I guess that classic case where BIOS/EFI have no support for 
NVME and I imagine, I hope, grub can be the savior here!

I should add I'm hoping to have grub @centos 7.5 do that.

many thanks, L.