I see you are running the kvm kernel flavor, and indeed I don't see the nfsd.ko module, nor a package named like linux-modules-extra-kvm, which, in the case of the other cloud kernels, does have nfsd.ko.
I'm changing this bug to be about the linux kernel, as they can answer best why nfsd.ko is not present, and in the meantime I suggest you install another kernel flavor, like perhaps linux-image-virtual.
I see you are running the kvm kernel flavor, and indeed I don't see the nfsd.ko module, nor a package named like linux-modules- extra-kvm, which, in the case of the other cloud kernels, does have nfsd.ko.
I'm changing this bug to be about the linux kernel, as they can answer best why nfsd.ko is not present, and in the meantime I suggest you install another kernel flavor, like perhaps linux-image- virtual.