# Install or Uninstall Package System Package Management / Install or Uninstall Package ## Install WHM plugin RPM package - [GET /install_rpm_plugin](https://api.docs.cpanel.net/specifications/whm.openapi/install-or-uninstall-package/install_rpm_plugin.md): This function starts a plugin installation. The installation runs as a background process. ## Start RPM package installation, update, or removal - [GET /package_manager_submit_actions](https://api.docs.cpanel.net/specifications/whm.openapi/install-or-uninstall-package/package_manager_submit_actions.md): This function installs, upgrades, or uninstalls RPM packages. The system queues this function's actions to run as background tasks. The actions may require additional time to finish. ## Start RPM package upgrade - [GET /package_manager_upgrade](https://api.docs.cpanel.net/specifications/whm.openapi/install-or-uninstall-package/package_manager_upgrade.md): This function downloads and installs package updates on the server. ## Uninstall WHM plugin RPM package - [GET /uninstall_rpm_plugin](https://api.docs.cpanel.net/specifications/whm.openapi/install-or-uninstall-package/uninstall_rpm_plugin.md): This function starts the uninstall process for a plugin. The uninstall process runs as a background process.