To install server-based Siebel CRM modules, you must be a nonroot user. You cannot install these modules as the root user using Oracle Universal Installer software. This requirement applies to all new installations of Siebel Enterprise Server and Siebel Web Server Extension (SWSE). It also applies to all migration installations and to all installations of Siebel Patchset releases for the current release (Siebel CRM version 18.104.22.168 or version 22.214.171.124).
For existing installations of Siebel CRM version 126.96.36.199 or earlier that were originally installed as the root user (using InstallShield installers), you can use the
chown command to change the owner for all of the installation directories and files to a nonroot user in order to perform the migration installation.
After installing as a nonroot user, you can optionally change the installation owner back to the root user. Note that the same requirement will apply every time that you install a new release, including migration installations of a future release or installations of Siebel Patchset releases. In general, it is recommended not to change the owner back to the root user, unless your deployment requires it.
For example, for new or existing installations of SWSE, after installing as a nonroot user, you might need to change the owner to the root user in order to work with an existing Web server installation that uses privileged ports that are reserved for the root user (for example, port 80).
For more information, see Requirements for the Installation User for the Siebel Web Server Extension.