The 'rootpath' can be provided by DHCP server. Removing this line prevents
from overwriting it.
To do that on the DHCP server side (isc-dhcp-server) modify dhcpd.conf
and add 'option root-path "192.168.X.Y:/srv/tftp/rootfs";'
Signed-off-by: Lukasz Majewski <lukma@denx.de>
#
# Provide 'boot_nfs' command
#------------------------------------------------------------
-setenv rootpath "/srv/tftp/KP/rootfs"
setenv nfsargs "setenv bootargs root=/dev/nfs rw \
nfsroot=${serverip}:${rootpath},nolock,nfsvers=3"
setenv addip "setenv bootargs ${bootargs} \