Index: scripts/run.sh
===================================================================
diff -u -rd68767b00e162186262be1eac0b9071bc2257d0d -r2377ce5af68abfa265482f9ce2feb8b81b16bfa4
--- scripts/run.sh	(.../run.sh)	(revision d68767b00e162186262be1eac0b9071bc2257d0d)
+++ scripts/run.sh	(.../run.sh)	(revision 2377ce5af68abfa265482f9ce2feb8b81b16bfa4)
@@ -19,11 +19,14 @@
 
 #A simple none secure update
 if [ -e $USB_MNT/denali ]; then            
+    mv $HOME/denali $HOME/denali.$(date +"%d%m%Y%H%M%S")
     cp $USB_MNT/denali $HOME/denali
     sync;sync;sync;
     mv $USB_MNT/denali $USB_MNT/denali.updated
     sync;sync;sync;
 fi
+
+# check if update where successful
 if [ $? -eq 0 ]; then
     echo ":: Denali application has been updated with the one on the USB drive"
 fi