Teradata Tools and Utilities (TTU) Products can now be installed at a location provided by the user. All products of the same release (for example, 20.00, 17.20, 17.10, 17.00 and so on) must be installed at the same prefix.
The install location (TTU_install_directory) is defined as <prefix>/teradata/client/20.00. If a prefix is not provided by the user, then the default <prefix> will be /opt.
The User Selectable Install Location feature is not supported for Ubuntu. It can only be installed in the default location which is /opt.