i.MX53 nfs rootfs mount fails

The "netboot" option for i.MX53 appears to fail. It appears to be a problem with the root file system initialization as adding the kerenel parameter init=/bin/bash allows a user to at least reach a prompt. Also, using an internal Freescale BSP generated filesystem works as well.

To reproduce, download any daily or release imx5 hw pack and filesystem, then use linaro media create to install on an SD card, then copy the filesystem off to a directory on your host machine and export this directory in /etc/exports and restart your nfs server, then change the u-boot nfsroot variable and server ip address as needed. Save changes and "run netboot". The most recent build and tried and failed with was the 11.05 9/23 imx5 hwpack and I tried both the nano and developer file systems.

It there is some expected additional steps needed, this could also be documentation error as a search for "nfs" or "netboot" on wiki.linaro.org produced no results. I tried various other steps such as modifying entries in the /etc/fstab of the filesystem but never got a successful boot.