diff --git a/xCAT-server/share/xcat/netboot/rh/dracut/install.statelite b/xCAT-server/share/xcat/netboot/rh/dracut/install.statelite
index 9168603fb..17b03012e 100755
--- a/xCAT-server/share/xcat/netboot/rh/dracut/install.statelite
+++ b/xCAT-server/share/xcat/netboot/rh/dracut/install.statelite
@@ -1,5 +1,5 @@
 #!/bin/sh
 echo $drivers
 dracut_install wget cpio gzip dash  modprobe
-dracut_install grep ifconfig hostname awk egrep grep dirname
-inst_hook pre-pivot 10 "$moddir/xcat-prepivot.sh"
+dracut_install grep ifconfig hostname awk egrep grep dirname expr
+inst_hook pre-pivot 5 "$moddir/xcat-prepivot.sh"