diff --git a/xCAT-server/lib/perl/xCAT/Template.pm b/xCAT-server/lib/perl/xCAT/Template.pm
index 4771b2206..404f531cb 100644
--- a/xCAT-server/lib/perl/xCAT/Template.pm
+++ b/xCAT-server/lib/perl/xCAT/Template.pm
@@ -766,11 +766,19 @@ sub mirrorspec{
       my $pkgdir;
       my @mirrors;
       my @pkgdirlist=split(/,/,$pkgdirval);
+      my $masternode = xCAT::TableUtils->get_site_Master();
+      
       foreach (@pkgdirlist){
                if($_ =~ /^http|ssh/){
                  push @mirrors,$_;
                }else{
-                 $pkgdir=$_;
+                 # If multiple pkgdirs are provided,  The first path in the value of osimage.pkgdir
+                 if (!$pkgdir) {
+                     $pkgdir=$_;
+                 }else {
+                    my $osuurl = "http://" . $masternode . $_ . " ./";
+                    push @mirrors,$osuurl;
+                 }
                }
       }
       
diff --git a/xCAT-server/share/xcat/netboot/ubuntu/genimage b/xCAT-server/share/xcat/netboot/ubuntu/genimage
index 4e4478a55..f2c87c44d 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/genimage
+++ b/xCAT-server/share/xcat/netboot/ubuntu/genimage
@@ -230,13 +230,21 @@ unless ($onlyinitrd) {
    my @srcdirs = split(',', $srcdir);
    
    my @pkgdir_internet; #Put all the http mirror in ths array, but only the first http mirror which will be used to create bootstrap
+   my @pkgdir_local; #Put all directories except first in this array
+   my $masternode = xCAT::TableUtils->get_site_Master();
    $srcdir = undef;
    foreach my $dir (@srcdirs) {
       if ($dir =~ /^http.*/){
           push @pkgdir_internet, $dir;
       } else {
-          $srcdir = $dir;  #set $srcdir to be the one which is not http path
-          find(\&isaptdir, <$dir/>);
+          # If multiple pkgdirs are provided,  The first path in the value of osimage.pkgdir
+          if (!$srcdir) {
+            $srcdir = $dir; 
+            find(\&isaptdir, <$dir/>);
+          } else { #set other directory to http url
+            my $osuurl = "http://$masternode$dir ./";
+            push @pkgdir_local, $osuurl;
+          }
       }
    } 
    # Add the dir for kernel deb to be installed
@@ -266,6 +274,11 @@ unless ($onlyinitrd) {
           print $aptconfig "deb $_\n\n";
       }
    }
+   if (@pkgdir_local) {
+      foreach (@pkgdir_local) {
+          print $aptconfig "deb $_\n\n";
+      }
+   }
    close($aptconfig);
    mkpath "$rootimg_dir/etc";
 
@@ -329,13 +342,15 @@ unless ($onlyinitrd) {
    open($aptconfig,">","$rootimg_dir/etc/apt/sources.list");
 
    if ($srcdir) {
-       my $master = xCAT::TableUtils->get_site_Master();
-       print $aptconfig "deb http://$master$srcdir $dist main\n";
+       print $aptconfig "deb http://$masternode$srcdir $dist main\n";
    }
 
    foreach (@pkgdir_internet) {
        print $aptconfig "deb $_\n";
    }
+   foreach (@pkgdir_local) {
+       print $aptconfig "deb $_\n";
+   }
 
    close($aptconfig);