diff --git a/xCAT-server/sbin/xcatconfig b/xCAT-server/sbin/xcatconfig
index cf004dd61..b55d916bb 100755
--- a/xCAT-server/sbin/xcatconfig
+++ b/xCAT-server/sbin/xcatconfig
@@ -1020,44 +1020,6 @@ sub genSSHNodeHostKey
 
 }
 
-# is_lsb_ubuntu return value indicates whether system appears to be Ubuntu.
-# Using required /etc/lsb-release file, instead of optional lsb_release command.
-
-sub is_lsb_ubuntu
-{
-    if (open(my $relfile, "<", "/etc/lsb-release")) {
-        my @text = <$relfile>;
-        close($relfile);
-        chomp(@text);
-        my $distrib_id = '';
-
-        foreach (@text) {
-            if ( $_ =~ /^\s*DISTRIB_ID=(.*)$/ ) {
-                $distrib_id = $1;                   # last DISTRIB_ID value in file used
-            }
-        }
-
-        if ( $distrib_id =~ /^(Ubuntu|"Ubuntu")\s*$/ ) {
-            return 1;                               # return "true"
-        }
-    }
-
-    return 0;                   # return "false"
-}
-
-sub is_debian
-{
-    if ( -e "/etc/debian_version" && -e "/etc/issue"){
-        open(my $relfile, "<", "/etc/issue");
-        my $line = <$relfile>;
-        close($relfile);
-        if ( $line =~ /debian.*/i ){
-            return 1;
-        }
-    }
-    return 0;
-}
-
 sub is_redhat6sp4
 {
     if( -e "/etc/redhat-release" ){
@@ -1072,21 +1034,6 @@ sub is_redhat6sp4
 }
 
 
-# on Ubuntu need to painstakingly compare /etc/localtime with files under
-# /usr/share/zoneinfo since /etc/localtime # isn't always a symbolic link
-sub discover_timezone_ubuntu
-{
-	my $localtime = "/etc/localtime";
-	my $zoneinfo = "/usr/share/zoneinfo";
-
-	my $zone_result = `find $zoneinfo -type f -exec cmp -s $localtime {} \\; -print | grep -v posix | grep -v SystemV`;
-
-	my @zones = split /\n/, $zone_result;
-
-	$zones[0] =~ s/$zoneinfo\///;
-
-	return $zones[0];
-}
 
 #-----------------------------------------------------------------------------
 
@@ -1158,6 +1105,7 @@ sub initDB
 
     # set value based on OS
     my ($domain, $timezone);
+    my $timezone = xCAT::Utils->gettimezone();
     if ($::osname eq 'AIX')
     {
         my ($name, $rest) = split('\.', $hname);
@@ -1170,35 +1118,10 @@ sub initDB
             $domain = "";
         }
 
-        $timezone = $ENV{'TZ'};
     }
     else    # linux
     {
         $domain = `hostname -d`;
-        my $tz;
-        if (-f "/etc/redhat-release")
-        {
-
-            # on Redhat look for "ZONE"
-            $tz =
-              `grep ^ZONE /etc/sysconfig/clock|cut -d= -f 2|sed -e 's/"//g'`;
-        }
-        elsif ( is_lsb_ubuntu() || is_debian() )
-        {
-            $tz = discover_timezone_ubuntu;
-            if (!$tz){
-                $tz = `cat /etc/timezone`;
-                chomp $tz;
-            }
-        }
-        else
-        {
-
-            # on SuSE look for "TIMEZONE"
-            $tz =
-              `grep ^TIMEZONE /etc/sysconfig/clock|cut -d= -f 2|sed -e 's/"//g'`;
-        }
-        $timezone = $tz;
     }
 
     chomp $timezone;
@@ -1973,6 +1896,7 @@ sub setuphttp
 {
 
     my $cmd;
+    my $distro = xCAT::Utils->osver(); 
     # restart httpd
     if (-e "/etc/init.d/apache2")
     {    #for sles/ubuntu
@@ -2000,8 +1924,7 @@ sub setuphttp
     # enable httpd
     if (-e "/etc/init.d/apache2")
     {
-        if (is_lsb_ubuntu() || is_debian() ) 
-        {   # for ubuntu
+        if ( $distro =~ /ubuntu.*/ || $distro =~ /debian.*/i) {
             $cmd = "/usr/sbin/update-rc.d apache2 enable";
         }
         else
@@ -2009,18 +1932,6 @@ sub setuphttp
             $cmd = "/sbin/chkconfig apache2 on";
         }
     }
-#    elsif (-e "/sbin/chkconfig")
-#    {
-#        $cmd = "/sbin/chkconfig httpd on";
-#    }
-#    elsif (-e "/usr/sbin/chkconfig")
-#    {
-#        $cmd = "/usr/sbin/chkconfig httpd on";        
-#    }
-#    else
-#    {
-#        $cmd = "chkconfig httpd on";
-#    }
     else
     {
          my $CHKCONFIG = xCAT::Utils->fullpathbin("chkconfig");
@@ -2253,6 +2164,7 @@ sub setupMNinDB
 sub startnamedonboot
 {
     # start named on boot
+    my $distro = xCAT::Utils->osver(); 
     if (xCAT::Utils->isAIX())
     {
         #/etc/inittab
@@ -2272,7 +2184,7 @@ sub startnamedonboot
         #chkconfig
         my $serv = "named";
         my $cmd = "/sbin/chkconfig $serv on";
-        if ( is_lsb_ubuntu() || is_debian() ){
+        if ( $distro =~ /ubuntu.*/ || $distro =~ /debian.*/i) {
             $serv = "bind9";
             $cmd = "update-rc.d $serv enable";
         }