Installation types

The IBM® EMM installer performs the following types of installation.

New installation: When you run the installer and select a directory where an IBM® EMM product has never been installed, the installer automatically performs a new installation.

Upgrade installation: When you run the installer and select a directory where an earlier version of an IBM® EMM product is installed, the installer automatically performs an upgrade installation. For products where installers automatically update the database, upgrade installation adds new tables but does not overwrite data in existing tables.

For products where installers automatically update the database, errors can occur during an upgrade because the installer does not create tables in the database if they exist. You can safely ignore these errors. See the chapter on Upgrading for details.

Reinstallation: When you run the installer and select a directory where the same version of an IBM® EMM product is installed, the installer overwrites your existing installation. To preserve any existing data, back up your installation directories and your system table databases before reinstalling.

Typically, reinstallation is not recommended.