--- batch/sysinstall.in.orig	2011-09-11 10:41:39 UTC
+++ batch/sysinstall.in
@@ -235,7 +235,7 @@ if test $MODE = install; then
     for script in "$DESTDIR$SCRIPTDIR"/* "$DESTDIR$CONFIGDIR"/rc.config; do
         if test "$script" != "$DESTDIR$SCRIPTDIR"/sysinstall; then
             sed -e ${sedcommands} < "$script" > "$script.trans" || exit 1
-            mv "$script.trans" "$script"
+            mv -f "$script.trans" "$script"
             chmod 755 "$script"
         fi
     done