diff -Nuar ubiquity.orig/scripts/install.py  ubiquity/scripts/install.py
--- ubiquity.orig/scripts/install.py	2010-03-22 18:30:36.000000000 +0100
+++ ubiquity/scripts/install.py	2010-03-24 13:22:36.000000000 +0100
@@ -1557,39 +1557,39 @@
                                 struct.pack('256s', interfaces[i]))[16:24])
             sock.close()
 
-            iftab = open(os.path.join(self.target, 'etc/iftab'), 'w')
-
-            print >>iftab, textwrap.dedent("""\
-                # This file assigns persistent names to network interfaces.
-                # See iftab(5) for syntax.
-                """)
-
-            for i in range(len(interfaces)):
-                dup = False
-
-                if_name = if_names[interfaces[i]]
-                if if_name is None or if_name[0] != ARPHRD_ETHER:
-                    continue
-
-                for j in range(len(interfaces)):
-                    if i == j or if_names[interfaces[j]] is None:
-                        continue
-                    if if_name[1] != if_names[interfaces[j]][1]:
-                        continue
-
-                    if if_names[interfaces[j]][0] == ARPHRD_ETHER:
-                        dup = True
-
-                if dup:
-                    continue
-
-                line = (interfaces[i] + " mac " +
-                        ':'.join(['%02x' % ord(if_name[1][c])
-                                  for c in range(6)]))
-                line += " arp %d" % if_name[0]
-                print >>iftab, line
-
-            iftab.close()
+#            iftab = open(os.path.join(self.target, 'etc/iftab'), 'w')
+#
+#            print >>iftab, textwrap.dedent("""\
+#                # This file assigns persistent names to network interfaces.
+#                # See iftab(5) for syntax.
+#                """)
+#
+#            for i in range(len(interfaces)):
+#                dup = False
+#
+#                if_name = if_names[interfaces[i]]
+#                if if_name is None or if_name[0] != ARPHRD_ETHER:
+#                    continue
+#
+#                for j in range(len(interfaces)):
+#                    if i == j or if_names[interfaces[j]] is None:
+#                        continue
+#                    if if_name[1] != if_names[interfaces[j]][1]:
+#                        continue
+#
+#                    if if_names[interfaces[j]][0] == ARPHRD_ETHER:
+#                        dup = True
+#
+#                if dup:
+#                    continue
+#
+#                line = (interfaces[i] + " mac " +
+#                        ':'.join(['%02x' % ord(if_name[1][c])
+#                                  for c in range(6)]))
+#                line += " arp %d" % if_name[0]
+#                print >>iftab, line
+#
+#            iftab.close()
 
 
     def configure_bootloader(self):