Assistance to enable nested virtualisation on a remote VM

I’m having a difficult time enabling nested virtualization on my remote VM;
Including other commands run so far, I also run;
sudo apt install qemu-kvm
sudo adduser [username] kvm

Any resolution would be appreciated!

What kernel is host and guest using?

4.15.0-20-generic

I think you need at least 5.13 on both to support nested virt if memory serves me.

Certainly when I tried it a while back on Focal’s 5.4 kernel it didn’t work and needed the HWE 5.13 one to work.

Noted with thanks. Seen