how to chainload to an nvme ssd?

[gilg]

Hi every one

My motherboard does not have an nvme slot. So I added a pci-nvme 
adapter. It works fine.

I have 4 other hard drives where I installed some os's whicj are already 
full.

I use grub on my first HDD to "chainload" to all other systems and I 
this time I wanted to install Fedora on the nvme.

But I didn't find out how to chain towards an nvme partition. Grub ls 
command does not find this device.

I found a trick on chatgpt but it appears to be wrong: 
root=(/dev/nvme0n1p2) does not work.

Is there some solution ?

Thx