Comment 13 for bug 177439

AlexLG:

Philip Walls compiled a new version of /lib/modules/2.6.22-14-generic/kernel/fs/nfs/nfs.ko which I have successfully tested on my installation.

If you need nfsv4 right now and you can't wait for an updated kernel, you can either recompile apply the patch and recompile your kernel or use the nfs.ko for 2.6.22-14.47 he compiled and made available in the thread (disclaiming the potential danger of running untrusted kernel code, as Philip said).

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/164231/

Good luck.

Claude