Public bug reported:
There are two essential kernel modules that are missing from some linux
kernel packages under Ubuntu Server 18.04 LTS:
nfsv4.ko and aes-x86_64.ko (matter-of-fact any crypto module)
I found them both missing in linux-kvm and nfsv4.ko missing in linux-
generic - both are present in linux-generic-hwe-18.04.
The use cases for these are not far-fetched:
In an Ubuntu KVM guest, I often need virtual disks that I can encrypt
via LUKS in order to protect them (somewhat). Obviously, this is not
possible without the crypto modules, which are not present in the KVM-
specialised kernel package 'linux-kvm'.
On the other hand, when I want to mount NFS storage, I cannot use NFSv4,
which is the preferred way of doing it when you need firewalling. Why
this fails is not at all obvious, since the use-level "mount.nfs4" is
present, but only gives cryptic messages, not showing that a kernel
module is missing.
And even with the default kernel (linux-generic), which has some more
modules, NFSv4 client support is missing.
Do I really have to use linux-generic-hwe-18.04 for that? It seems a bit
much.
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
** Tags: crypto nfsv4
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https://bugs.launchpad.net/bugs/1851382
Title:
Missing modules for cryptography and NFSv4
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