Workaround if apt update does not create pkgcache.bin

Author: pillarsdotnet

templates/update_had_no_effect.sh.epp

@@ -27,6 +27,7 @@ while true; do
   TRIES=$(( TRIES - 1 ))
 done
 SAME=1
+[ -e "$CUR" ] || touch "$CUR"
 cmp "$CUR" "$OLD" && SAME=0
 rm -f "$OLD"
 exit $SAME