Ubuntu install error: MokListRT: Out of Resources

When installing Ubuntu server (20.04) on a Dell T7600, I ran into an issue when trying to boot from UEFI mode.

I'd get the error:

Failed to set MokListRT: Out of Resources

and then the server would just shut off.

I could boot from Legacy (non-UEFI mode), but it bugged me, as I knew the version of Ubuntu server supported UEFI mode.

I did some research, and found out that the issue was that there weren't any EFI loaders selected on the USB stick.

Not sure how widespread this is, but on the Dell T7600, happens ever time, but there is an easy fix.

In the BIOS, select General --> Boot Sequence, then make sure that UEFI is selected.

Add Boot Option, provide a name, and then browse/select grubx64.efi (mine was under FS0).

Click OK, Save, then reboot.