diff --git a/xCAT-server/share/xcat/netboot/ubuntu/genimage b/xCAT-server/share/xcat/netboot/ubuntu/genimage
index 3f906064a..4edff6ac0 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/genimage
+++ b/xCAT-server/share/xcat/netboot/ubuntu/genimage
@@ -280,15 +280,11 @@ unless ($onlyinitrd) {
    my @line=split(" ",`ls -lh $installroot/$osver/$arch/dists/ | grep dr`);
    my $dist = $line[@line-1];
 
-#   my $aptgetcmd = "chroot $rootimg_dir apt-get update && chroot $rootimg_dir apt-get $non_interactive ";
-
-    # If there is env in otherpkg list
-    # apt-get update and apt-get install should be added env param
-    my $aptgetcmd = "chroot $rootimg_dir apt-get update";
-    my $aptgetcmdby="chroot $rootimg_dir apt-get $non_interactive ";
-
-
-   my $aptcachecmd = "chroot $rootimg_dir apt-get update && chroot $rootimg_dir apt-cache $non_interactive ";
+   # If there is env in otherpkg list
+   # apt-get update and apt-get install should be added env param
+   my $aptgetcmd = "DEBIAN_FRONTEND=noninteractive chroot $rootimg_dir apt-get update";
+   my $aptgetcmdby = "DEBIAN_FRONTEND=noninteractive chroot $rootimg_dir apt-get $non_interactive ";
+   my $aptcachecmd = "DEBIAN_FRONTEND=noninteractive chroot $rootimg_dir apt-get update && chroot $rootimg_dir apt-cache $non_interactive ";
    my $aptcmd1 = "debootstrap";
    #my $aptcmd2 = "--arch $uarch $dist $rootimg_dir file://$installroot/$osver/$arch/";
    my $aptcmd2;