diff --git a/xCAT-server/share/xcat/install/scripts/post.xcat b/xCAT-server/share/xcat/install/scripts/post.xcat
index e7938a530..e6c8f8ad2 100644
--- a/xCAT-server/share/xcat/install/scripts/post.xcat
+++ b/xCAT-server/share/xcat/install/scripts/post.xcat
@@ -185,10 +185,10 @@ chmod 755 /opt/xcat/xcatdsklspost
 TMP=`sed "/postbootscripts-start-here/,/postbootscripts-end-here/ d" /xcatpost/mypostscript`
 echo "$TMP" > /xcatpost/mypostscript
 
-/xcatpost/mypostscript
 export NODE=#TABLE:nodelist:THISNODE:node#
 export ARCH=#TABLE:nodetype:THISNODE:arch#
 addsiteyum
+/xcatpost/mypostscript
 sed -i 's/^serial/#serial/' /boot/grub/grub.conf
 sed -i 's/^terminal/#terminal/' /boot/grub/grub.conf
 if [ -z "$NODESTATUS" ] || [ "$NODESTATUS" != "0" -a   "$NODESTATUS" != "N"  -a  "$NODESTATUS" != "n" ]; then