# Add a new driver

To add a new driver, first download the driver file from the [Support Portal](https://support.pentaho.com/hc/en-us) then add it to Pentaho using the PDI client. If you are connected to a repository, the driver is copied to the Pentaho Server driver directory. Otherwise, the driver is copied locally to the PDI client driver directory.

Perform the following steps to add a new driver.

1. Download the new driver from the [Support Portal](https://support.pentaho.com/hc/en-us).
   1. On the [Support Portal](https://support.pentaho.com/hc/en-us) home page, sign in using the Pentaho support username and password provided in your Pentaho Welcome Packet.
   2. In the Pentaho card, click **Download**.

      The Downloads page opens.
   3. In the **9.x** list, click **See all \<number> articles** to see the full list of **9.x** downloads.
   4. On the **9.x** page, click **Pentaho 9.3 GA Release**.
   5. Scroll to the bottom of the Pentaho 9.3 GA Release page.
   6. In the file component section, browse to the `Big Data Shims` folder and download the driver file that you need.

      The following table lists the driver files that are available in the `Big Data Shims` folder.

      | Cluster connected to PDI    | File                                                                                |
      | --------------------------- | ----------------------------------------------------------------------------------- |
      | Cloudera Distributed Hadoop | pentaho-hadoop-shims-ee- cdh61-kar-9.3.*\<date>*-*\<build number>*-dist.zip         |
      | Cloudera Data Platform      | pentaho-hadoop-shims-ee- cdpdc71-kar-9.3.*\<date>*-*\<build number>*-dist.zip       |
      | Google Dataproc             | pentaho-hadoop-shims-ee- dataproc1421-kar-9.3.*\<date>*- *\<build number>*-dist.zip |
      | Amazon Elastic MapReduce    | pentaho-hadoop-shims-ee- emr521-kar-9.3.*\<date>*-*\<build number>*-dist.zip        |
      | Azure HDInsight             | pentaho-hadoop-shims-ee- hdi40-kar-9.3.*\<date>*-*\<build number>*-dist.zip         |
      | Hortonworks Data Platform   | pentaho-hadoop-shims-ee- hdp30-kar-9.3.*\<date>*-*\<build number>*-dist.zip         |
      | MapR                        | pentaho-hadoop-shims-ee- mapr61-kar-9.3.*\<date>*-*\<build number>*-dist.zip        |
2. Unpack the Zip file that contains the driver to a temporary directory.

   A new directory containing scripts is created in the temporary directory.
3. In the new directory, run one of the following scripts that is appropriate for the OS:
   * `install.bat`
   * `install.sh`
   * `installer.jar`
4. In the IZPack window read the license agreement, select **I accept the terms of this license agreement**, then click **Next**.
5. In the **Select the installation path** box, save the file in a temporary directory, and then click **Next**.

   A warning message appears.
6. Click **Yes**.

   The installation begins.
7. When the installation finishes, click **Quit**.

   The new driver is saved as a `.kar` file in the temporary directory that you specified.
8. In the PDI client, select the **View** tab of your transformation or job.
9. Right-click the **Hadoop clusters** folder and click **Add driver**.

   The Add driver dialog box appears.
10. Click **Browse** and navigate to where you saved the new driver `.kar` file you downloaded from the [Support Portal](https://support.pentaho.com/hc/en-us).
11. Select the new driver `.kar` file, click **Open**, and then click **Next**.

    The Congratulations dialog box appears, notifying you that you must restart the PDI client and the Pentaho Server.

    * If you are connected to a repository, the driver is copied to the Pentaho Server driver directory.
    * If you are not connected to a repository, the driver is copied to the PDI client driver directory.