I installed OpenWrt 18.06 on a Raspberry Pi 3 B, and it's running great, but I want to mount an NFS volume, and NFS doesn't seem to be included. Fine, the docs say I should install kmod-fs-nfs but I'm guessing I need nfs-utils as well. However, they don't come up as available packages, so I ended up looking to do my own build, following the quickstart image building guide.
One thing is not clear to me though: if I use only the defaults in make menuconfig, will I basically get the same image as what I downloaded? Alternatively, is there a way to copy the config used to build the official release build to my build environment, and then customise it?