ROOTFS_POSTPROCESS_COMMAND_append = " force_password_change;"

force_password_change () {
	for name in ${EXTRA_FORCE_PASSWORD_CHANGE}; do
		echo "Set user $name to need a password change on first login."
		sed -i ${IMAGE_ROOTFS}/etc/shadow -e 's,^'$name':\([^:]*\):[^:]*:,'$name':\1:0:,'
	done
}