diff -ruN smeserver-tftp-server-1.2.old/root/var/service/tftpd/run smeserver-tftp-server-1.2/root/var/service/tftpd/run
--- smeserver-tftp-server-1.2.old/root/var/service/tftpd/run	2018-03-29 10:26:32.332309304 +0200
+++ smeserver-tftp-server-1.2/root/var/service/tftpd/run	2018-03-29 10:31:14.058068763 +0200
@@ -23,6 +23,7 @@
     TFTPD_UDPPORT=$(/sbin/e-smith/db configuration getprop tftpd UDPPort);
     TFTPD_DIRECTORY=$(/sbin/e-smith/db configuration getprop tftpd directory);
     TFTPD_REFUSE=$(/sbin/e-smith/db configuration getprop tftpd refuse);
+    TFTPD_BLKSIZE=$(/sbin/e-smith/db configuration getprop tftpd blksize);
     
     TFTPD_ACCESS_SETTING="127.0.0.1";
     if [ $TFTPD_ACCESS == "public" ]; then
@@ -49,16 +50,21 @@
     fi
 
     TFTPD_REFUSE_SETTING=""
-    if [ $TFTPD_REFUSE != "" ]; then
+    if [ "$TFTPD_REFUSE" != "" ]; then
 	TFTPD_REFUSE_SETTING="-r $TFTPD_REFUSE";
     fi
-    
+
+    TFTPD_BLKSIZE_SETTING=""
+    if [ "$TFTPD_BLKSIZE" != "" ]; then
+	TFTPD_BLKSIZE_SETTING="-B $TFTPD_BLKSIZE";
+    fi
+
     cd /
     exec 2>&1
     exec    udpsvd	-h $TFTPD_LOG_SETTING \
 			$TFTPD_ACCESS_SETTING $TFTPD_UDPPORT \
     	    in.tftpd 	$TFTPD_LOG_SETTING $TFTPD_PRIVILEGE_SETTING \
-			-u $TFTPD_USER $TFTPD_TIMEOUT_SETTING $TFTPD_REFUSE_SETTING -s $TFTPD_DIRECTORY
+			-u $TFTPD_USER $TFTPD_TIMEOUT_SETTING $TFTPD_REFUSE_SETTING $TFTPD_BLKSIZE_SETTING -s $TFTPD_DIRECTORY
 else
     /usr/bin/runsvctrl down .
 fi