Installation and Upgrade > Installation and Configuration Guide > Using the PTC Solution Installer > Installing Windchill Solutions > Launching the PTC Solution Installer > Specifying the User (UNIX Only)
  
Specifying the User (UNIX Only)
When installing as a root user, you can choose which user under which to install the software components.
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When running PSI in Linux environment, user must have the appropriate permissions to run the installation. If the user is not available in the system or does not have the required permissions, then installation fails at the Data Loading step.