Index: apps/debug_menu.c
===================================================================
--- apps/debug_menu.c   (revision 23592)
+++ apps/debug_menu.c   (working copy)
@@ -754,7 +754,7 @@
     struct partinfo* p = disk_partinfo(partition);
     if (selected_item%2)
     {
-        snprintf(buffer, buffer_len, "   T:%x %ld MB", p->type, p->size / 2048);
+        snprintf(buffer, buffer_len, "   T:%x %ld MB", p->type, p->size / ( 2048 / ( SECTOR_SIZE / 512 )));
     }
     else
     {