How to troubleshoot installation issues in PostgreSQL?

PostgreSQL installation problems can result from permission issues, missing dependencies, or software conflicts. Here’s how to troubleshoot:

• Run the installer with admin privileges (e.g., right-click → Run as administrator on Windows).
• On Linux, install PostgreSQL.
• Ensure required dependencies (like OpenSSL or libreadline) are installed—your package manager usually handles this.
• Check available disk space; installation and initial data setup need several hundred MBs, but more space is required for actual usage.
• If you have multiple PostgreSQL versions installed, verify they’re not using the same port (5432 by default). Adjust postgresql.conf if needed.
• Review logs for detailed error messages.
• Confirm that required environment variables (like PATH) are set so that the psql command works.
• After install, test the connection.
• If you're using EnterpriseDB’s installer, their logs are found in the install directory (install-postgresql.log).
• For persistent issues, check the PostgreSQL community support or Stack Overflow.