How to use root NFS file system
Background
When you are developing applications, it is convenient to rebuild and deploy the application without having to update NAND flash or the SD card file system image. This can be done using a technology called NFS root file system.
Target refers to the hardware with the Soc. Host refers to the Linux desktop machine.
Set target IP address
You can either use DHCP or a fixed IP address. Run
make -C $DEVDIR config
and in the Generic SDK configuration menu select or unselect Use DHCP and set fixed IP address parameters as necessary.
NFS root configuration
You File System Configuration need to tell the SDK to build the kernel command line specifying the NFS root file system path. Run
make -C $DEVDIR config
and in the File System Configuration menu set the File system image target to NFS root file system.
Rebuild image
Now you can rebuild the target image and install to the target hardware.
cd $DEVDIR make cmdline make make install