Submit logic looks perfect now, and wanted to add that gdkbirdaa was added in 1.19.

gBootRoot

@@ -523,6 +523,7 @@ sub advanced_section {
        label_advanced("append =",0,1,3,4);
        $ea3 = entry_advanced(1,2,3,4,2);
        my $append; (undef,undef,$append) = gdkbirdaao();
+       $tooltips->set_tip( $ea3, "Add append options to brlilo.conf.", "");
        $ea3->set_text($append) if defined $append;
 
        # Verbosity section
@@ -810,6 +811,7 @@ sub button {
 sub submit {
 
       my($kernel,$root_image);
+
       # comment this out for testing
       unlink("$verbosefn");
       open (MTAB, "/etc/mtab") or die "no mtab!\n";
@@ -906,15 +908,25 @@ elsif (defined $container[0] && defined $container[1] &&
 	 $container[9] = $entry_advanced[0] . "ea1";
      }
 
-     # not quite there .. .* to "" not working yet
-     if ($entry_advanced[1]) {
-        push(@original_container,$entry_advanced[1]) if !$container[10];
+     # Works now .. whoosh!
      if ($container[10]) {
-	    $container[10] = $entry_advanced[1];
+        if ($container[10] ne "") {
+            $container[10] = $entry_advanced[1] if $entry_advanced[1];
+        }
+        if (defined $entry_advanced[1] and $entry_advanced[1] eq "") {
+            $container[10] = "";
         }
+        elsif ($container[10] eq "") {
+           push(@original_container,$entry_advanced[1]);         
+        }
+     }
+     else { 
+           push(@original_container,$entry_advanced[1]) 
+           if $entry_advanced[1];         
      }
 
-     # pretty complex and works properly
+     # pretty complex and works properly even for !-e lilo.conf
+     if ($container[11]) {
         if ($container[11] ne "") {
             $container[11] = $entry_advanced[2] if $entry_advanced[2];
         }
@@ -924,6 +936,11 @@ elsif (defined $container[0] && defined $container[1] &&
         elsif ($container[11] eq "") {
            push(@original_container,$entry_advanced[2]);         
         }
+     }
+     else { 
+           push(@original_container,$entry_advanced[2]) 
+           if $entry_advanced[2];         
+      }
 
      if (@original_container) { # defined array deprecate Perl 5.6 -  zas@metaconcept.com
          # a hash check isn't perfect for two values which are the same
@@ -931,12 +948,18 @@ elsif (defined $container[0] && defined $container[1] &&
 
          my @temp_container = @container;
 
-         # Got it!
-         if ($container[10] and $container[10] eq "") {
+         # Got it! - how to deal with fields with no init value
+         if (defined $container[10] and $container[10] eq "") {
+	     $container[10] = $entry_advanced[1];
+         }
+         if (!defined $container[10]) {
 	     $container[10] = $entry_advanced[1];
          }
-         if ($container[11] eq "") {
-	     $container[11] = $entry_advanced[2]
+         if (defined $container[11] and $container[11] eq "") {
+	     $container[11] = $entry_advanced[2];
+         }
+         if (!defined $container[11]) {
+	     $container[11] = $entry_advanced[2];
          }
 
          # no sense looking at undef values
@@ -979,9 +1002,6 @@ elsif (defined $container[0] && defined $container[1] &&
      }
 
      # reset
-
-     # entry fun
-
      @original_container = ($container[0],$root_image,$device,$size,
                             $compress,$container[6],$container[7],
                             $container[8],$container[9],$container[10],