diff --git a/xCAT-server/share/xcat/netboot/rh/genimage b/xCAT-server/share/xcat/netboot/rh/genimage
index 07c40be7d..401f4c4f9 100755
--- a/xCAT-server/share/xcat/netboot/rh/genimage
+++ b/xCAT-server/share/xcat/netboot/rh/genimage
@@ -274,6 +274,7 @@ if [ "\$NFS" = "1" ]; then
   mkdir -p /rw/etc
   mkdir -p /rw/var/lib/dhclient
   cp /etc/resolv.conf /rw/etc/
+  echo xcatfs / aufs rw,_netdev 0 0 > /rw/etc/mtab
   cp /var/lib/dhclient/dhclient.leases /rw/var/lib/dhclient/dhclient-$prinic.leases
   mount -t aufs -o dirs=/rw:/ro mergedroot  /sysroot
   mkdir -p /sysroot/ro