diff --git a/xCAT-server/lib/xcat/plugins/debian.pm b/xCAT-server/lib/xcat/plugins/debian.pm
index 4051ca18e..48a3241a1 100644
--- a/xCAT-server/lib/xcat/plugins/debian.pm
+++ b/xCAT-server/lib/xcat/plugins/debian.pm
@@ -1796,91 +1796,4 @@ sub subVars()
     return $fdir;
 }
 
-sub setupNFSTree {
-    my $node     = shift;
-    my $sip      = shift;
-    my $callback = shift;
-
-    my $cmd = "litetree $node";
-    my @uris = xCAT::Utils->runcmd($cmd, 0);
-
-    foreach my $uri (@uris) {
-
-        # parse the result
-        # the result looks like "nodename: nfsserver:directory";
-        $uri =~ m/\Q$node\E:\s+(.+):(.+)$/;
-        my $nfsserver    = $1;
-        my $nfsdirectory = $2;
-
-        if ($nfsserver eq $sip) {    # on the service node
-            unless (-d $nfsdirectory) {
-                if (-e $nfsdirectory) {
-                    unlink $nfsdirectory;
-                }
-                mkpath $nfsdirectory;
-            }
-
-
-            $cmd = "showmount -e $nfsserver";
-            my @entries = xCAT::Utils->runcmd($cmd, 0);
-            shift @entries;
-            if (grep /\Q$nfsdirectory\E/, @entries) {
-                $callback->({ data => ["$nfsdirectory has been exported already!"] });
-            } else {
-                $cmd = "/usr/sbin/exportfs :$nfsdirectory -o rw,no_root_squash,sync,no_subtree_check,insecure";
-                xCAT::Utils->runcmd($cmd, 0);
-                $callback->({ data => ["now $nfsdirectory is exported!"] });
-            }
-
-            if (xCAT::SvrUtils->ensure_nfs_export_option($nfsdirectory, 'insecure')) {
-                xCAT::Utils->runcmd("/usr/sbin/exportfs -r", 0);
-                $callback->({ data => ["added insecure to existing $nfsdirectory export"] });
-            } elsif (!xCAT::SvrUtils->nfs_export_exists($nfsdirectory)) {
-                $cmd = qq{echo "$nfsdirectory *(rw,no_root_squash,sync,no_subtree_check,insecure)" >> /etc/exports};
-                xCAT::Utils->runcmd($cmd, 0);
-                $callback->({ data => ["$nfsdirectory is added to /etc/exports with default option"] });
-            }
-        }
-    }
-}
-
-sub setupStatemnt {
-    my $sip      = shift;
-    my $statemnt = shift;
-    my $callback = shift;
-
-    $statemnt =~ m/^(.+):(.+)$/;
-    my $nfsserver    = $1;
-    my $nfsdirectory = $2;
-
-    if ($sip eq inet_ntoa(inet_aton($nfsserver))) {
-        unless (-d $nfsdirectory) {
-            if (-e $nfsdirectory) {
-                unlink $nfsdirectory;
-            }
-            mkpath $nfsdirectory;
-        }
-
-        my $cmd = "showmount -e $nfsserver";
-        my @entries = xCAT::Utils->runcmd($cmd, 0);
-        shift @entries;
-        if (grep /\Q$nfsdirectory\E/, @entries) {
-            $callback->({ data => ["$nfsdirectory has been exported already!"] });
-        } else {
-            $cmd = "/usr/sbin/exportfs :$nfsdirectory -o rw,no_root_squash,sync,no_subtree_check,insecure";
-            xCAT::Utils->runcmd($cmd, 0);
-            $callback->({ data => ["now $nfsdirectory is exported!"] });
-        }
-
-        if (xCAT::SvrUtils->ensure_nfs_export_option($nfsdirectory, 'insecure')) {
-            xCAT::Utils->runcmd("/usr/sbin/exportfs -r", 0);
-            $callback->({ data => ["added insecure to existing $nfsdirectory export"] });
-        } elsif (!xCAT::SvrUtils->nfs_export_exists($nfsdirectory)) {
-            xCAT::Utils->runcmd(qq{echo "$nfsdirectory *(rw,no_root_squash,sync,no_subtree_check,insecure)" >> /etc/exports}, 0);
-            $callback->({ data => ["$nfsdirectory is added into /etc/exports with default options"] });
-        }
-    }
-}
-
-
 1;