15.00 - Uninstallation Script Overview - Teradata Tools and Utilities

Teradata Tools and Utilities for Red Hat Enterprise Linux Installation Guide

prodname
Teradata Tools and Utilities
vrm_release
15.00
created_date
March 2014
category
Installation
featnum
B035-3121-034K

Before you install a new version of Teradata Tools and Utilities packages, you must use the uninstallation script, uninstall_ttu.sh, to uninstall previous versions of the packages.

The script uninstalls dependency packages in the correct order.

The script is located on the installation media in the root directory.

When the uninstallation script is executed from the install script, it prompts you to choose whether to uninstall packages from previous versions of Teradata Tools and Utilities and leave any currently installed versions installed.

Run the uninstallation script before you do either of the following actions:
  • install another version of Teradata Tools and Utilities (a version other than the existing one)
  • decommission Teradata Tools and Utilities on a particular system
It is not necessary to uninstall previous versions of Teradata GSS Client package before you install another version. When you uninstall previous versions, configuration settings that you might want to reuse are deleted.
It is not necessary to uninstall previous versions of Teradata Wallet before you install another version of it. For information about retaining data in Teradata Wallet, see About Retaining and Deleting Data in Teradata Wallet.
In order to use Teradata Wallet, the version of the product that uses Teradata Wallet and the version of Teradata Wallet must match. This applies to the following products:
  • Teradata Call-Level Interface version 2
  • Open Database Connectivity (ODBC) Driver for Teradata
When you run the script, you can specify individual packages to be uninstalled. Teradata recommends that you uninstall the dependency packages (CLIv2, PIOM, TDICU, and TeraGSS) last; however they can be uninstalled individually regardless of the order.
If a dependency package is uninstalled without reinstalling a new version of that dependency package, the products that depend on that package stop functioning. For example, if CLIv2 is uninstalled, all products that depend on CLIv2 stop functioning. In this case, the script warns you and asks if you are sure you want to uninstall it.

The script does not require any parameters to execute. When the script runs, all information within the script is displayed.

The script uses system packaging commands to uninstall packages, so it must be executed as root (or with root privileges).