diff --git a/xCAT-server/share/xcat/netboot/add-on/statelite/rc.statelite b/xCAT-server/share/xcat/netboot/add-on/statelite/rc.statelite
index 9f735c49a..e403514ad 100755
--- a/xCAT-server/share/xcat/netboot/add-on/statelite/rc.statelite
+++ b/xCAT-server/share/xcat/netboot/add-on/statelite/rc.statelite
@@ -576,7 +576,7 @@ ResolveLinks
 #cp -r -a ${DEFAULT}/* /.snapshot/tmpfs/
 # foo
 # If the resolv.conf is not setup in rootimg, copy the dhcp generated one into rootimg
-if grep --quiet --no-messages "Dummy resolv.conf" "$MNTDIR/etc/resolv.conf"; then
+if grep -q -s "Dummy resolv.conf" "$MNTDIR/etc/resolv.conf"; then
 /bin/cat /etc/resolv.conf > $MNTDIR/etc/resolv.conf
 fi