wrs-boot-procedure: check whether tftp failed and retry

Thanks to Cesar Prados for finding the problem Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

wrs-boot-procedure: check whether tftp failed and retry
Thanks to Cesar Prados for finding the problem Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
7d3b6e3e · Alessandro Rubini · 7e2c24fc · 7d3b6e3e
Commit 7d3b6e3e authored Jul 17, 2014 by Alessandro Rubini
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wrs-boot-procedure userspace/rootfs_override/etc/init.d/wrs-boot-procedure +10 -1

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--- a/userspace/rootfs_override/etc/init.d/wrs-boot-procedure
+++ b/userspace/rootfs_override/etc/init.d/wrs-boot-procedure
@@ -81,7 +81,16 @@ if $install; then
    # Eth0 is already up, thanks to ip= passed by bootloader
    cd /update
    echo -n "Getting tftp://$SERVERIP/$WRS_FW ..." | busybox tee /dev/ttyGS0
-    busybox tftp -g -r $WRS_FW -l $WRS_FW $SERVERIP
+    busybox tftp -g -r $WRS_FW -l $WRS_FW $SERVERIP 2>&1 | tee /dev/ttyGS0
+    while [ ! -f $WRS_FW ]; do
+	echo "Downloading tftp://$SERVERIP/$WRS_FW failed" | \
+		busybox tee /dev/ttyGS0
+	# this loops forever
+	sleep 5
+	busybox tftp -g -r $WRS_FW -l $WRS_FW $SERVERIP 2>&1 | tee /dev/ttyGS0
+    done
+
+
    cd /; umount /update
    echo " done" | busybox tee /dev/ttyGS0