diff --git a/perl-xCAT/xCAT/Schema.pm b/perl-xCAT/xCAT/Schema.pm
index 1d11f360a..e69c85994 100644
--- a/perl-xCAT/xCAT/Schema.pm
+++ b/perl-xCAT/xCAT/Schema.pm
@@ -942,6 +942,11 @@ site => {
    " ppctimeout:  The timeout, in milliseconds, to use when communicating with PPC hw\n".
    "              through HMC. It only takes effect on the hardware control commands\n".
    "              through HMC. Default is 0.\n\n".
+   " precreatemypostscripts: (yes/1 or no/0, only for Linux).Default is no. If yes, it will  \n".
+   "              instruct xcat at nodeset and updatenode time to query the db once for\n".
+   "              all of the nodes passed into the cmd and create the mypostscript file\n".
+   "              for each node, and put them in a directory in tftpdir(such as: /tftpboot)\n".
+   "              If no, it will not generate the mypostscript file in the tftpdir.\n\n".
    " pruneservices:  Whether to enable service pruning when noderm is run (i.e.\n".
    "                 removing DHCP entries when noderm is executed)\n\n".
    " rsh:  This is no longer used. path to remote shell command for xdsh.\n\n".