diff --git a/xCAT-server/share/xcat/install/scripts/post.ubuntu b/xCAT-server/share/xcat/install/scripts/post.ubuntu
index e121b8277..a118ff20b 100644
--- a/xCAT-server/share/xcat/install/scripts/post.ubuntu
+++ b/xCAT-server/share/xcat/install/scripts/post.ubuntu
@@ -109,7 +109,6 @@ export PATH=/xcatpost:$PATH
 # use the run_ps subroutine to run the postscripts
 TMP=`sed "/postscripts-start-here/,/postscripts-end-here/ s/\(.*\)/run_ps \1/;s/run_ps\s*#/#/;s/run_ps\s*$//" /xcatpost/mypostscript`
 echo "
-# global value to store the running status of the postbootscripts,the value is non-zero if one postbootscript failed
 return_value=0
 # subroutine used to run postscripts
 run_ps () {
@@ -124,7 +123,7 @@ run_ps () {
   ./\$@ 2>&1 | tee -a $logfile
   ret_local=\${PIPESTATUS[0]}
   if [ \"\$ret_local\" -ne \"0\" ]; then
-     return_value=\$ret_local
+    return_value=\$ret_local
   fi
  else
    echo "\"\`date\` Postscript \$1 does NOT exist.\"" | tee -a \$logfile
@@ -157,13 +156,13 @@ if [ -f /xcatpost/mypostscript.post ]; then
     RUNBOOTSCRIPTS=`grep 'RUNBOOTSCRIPTS=' /xcatpost/mypostscript.post |cut -d= -f2`
 fi
 if [ "$RUNBOOTSCRIPTS" != "'yes'" ]; then
-    chkconfig xcatpostinit1 off
+    update-rc.d -f xcatpostinit1 remove
 fi
 echo "REBOOT=TRUE" >> /opt/xcat/xcatinf
 EOF
 chmod 755 /opt/xcat/xcatinstallpost
 
-chkconfig --add xcatpostinit1
+update-rc.d xcatpostinit1 defaults
 
 #create the dskls post 
 cat >/opt/xcat/xcatdsklspost << 'EOF'