@ Substring ok coool. so at present netboot on the pi3 is a little hit and miss.

heres my fstab on the recalbox share

proc /proc proc defaults 0 0
devpts /dev/pts devpts defaults,gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs mode=0777 0 0
tmpfs /tmp tmpfs mode=1777 0 0
tmpfs /var tmpfs mode=1777 0 0
tmpfs /run tmpfs mode=1777 0 0
sysfs /sys sysfs defaults 0 0

sometimes it takes the kernel sometimes it doesnt and then restarts the dhcp process then fails.
so far i have extracted the squashfs recalbox file to my nfs/root so in effect if/when i get it to weork the rootfs will be a shared folder on a server rather than a ram disk, soon as i get some time ill have another stab at it, but at the moment im at work.

the reasoning behind me trying to do this. i would like to have multiple rpi3 running my recal box build but i want them to be exactly the same build. i know i could just copy the image to other cards but this is more fun/interesting 😉