--- mysql_install_db.orig	2013-08-17 10:09:44.286222200 +0200
+++ mysql_install_db	2013-08-17 10:11:59.694232600 +0200
@@ -427,36 +427,39 @@
 # ----------------------------------------------------------------------
 # This will be the default config file
 # ----------------------------------------------------------------------
+my $failed_write_cfg= 0;
+my $cfg_template;
 
-$config_file= "$basedir/my.cnf";
+if ( ! $opt->{'defaults-file'} ) {
+	$config_file= "$basedir/my.cnf";
 
-my $cfg_template= find_in_basedir($opt,"file","my-default.cnf",
-				  "share","share/mysql","support-files");
--e $cfg_template or cannot_find_file("my-default.cnf");
+	my $cfg_template= find_in_basedir($opt,"file","my-default.cnf",
+					  "share","share/mysql","support-files");
+	-e $cfg_template or cannot_find_file("my-default.cnf");
 
-$copy_cfg_file= $config_file;
-my $failed_write_cfg= 0;
-if (-e $copy_cfg_file)
-{
-  $copy_cfg_file =~ s/my.cnf/my-new.cnf/;
-  # Too early to print warning here, the user may not notice
-}
-open (TEMPL, $cfg_template) or error($opt, "Could not open config template $cfg_template");
-if (open (CFG, "> $copy_cfg_file"))
-{
-  while (<TEMPL>)
-  {
-    # Remove lines beginning with # *** which are template comments
-    print CFG $_ unless /^# \*\*\*/;
-  }
-  close CFG;
-}
-else
-{
-  warning($opt,"Could not write to config file $copy_cfg_file: $!");
-  $failed_write_cfg= 1;
+	$copy_cfg_file= $config_file;
+	if (-e $copy_cfg_file)
+	{
+	  $copy_cfg_file =~ s/my.cnf/my-new.cnf/;
+	  # Too early to print warning here, the user may not notice
+	}
+	open (TEMPL, $cfg_template) or error($opt, "Could not open config template $cfg_template");
+	if (open (CFG, "> $copy_cfg_file"))
+	{
+	  while (<TEMPL>)
+	  {
+		# Remove lines beginning with # *** which are template comments
+		print CFG $_ unless /^# \*\*\*/;
+	  }
+	  close CFG;
+	}
+	else
+	{
+	  warning($opt,"Could not write to config file $copy_cfg_file: $!");
+	  $failed_write_cfg= 1;
+	}
+	close TEMPL;
 }
-close TEMPL;
 
 # ----------------------------------------------------------------------
 # Now we can get arguments from the groups [mysqld] and [mysql_install_db]