public void unpackBuild() throws Throwable
	{
		File configBackupDir = new File("config_backup");
		File modsBackupDir = new File("mods_backup");
		
		if (configBackupDir.exists())
			FileUtils.deleteDirectory(configBackupDir);
		if (modsBackupDir.exists())
			FileUtils.deleteDirectory(modsBackupDir);
		
		File configDir = new File("config");
		File modsDir = new File("mods");
		
		if (configDir.exists())
			configDir.renameTo(new File("config_backup"));
		if (modsDir.exists())
			modsDir.renameTo(new File("mods_backup"));
		
		ZipFile build = new ZipFile(new File("build.hoppix"));
		build.extractAll(".");
		File readme = new File("readme.txt");
		if (readme.exists())
		{
			readme.delete();
		}
	}