96 Chapter 6. Red Hat Network Website6.4.4.1. System Set Manager ⇒ Overview —Description of the various options available to you in the remaining tabs.6.4.4.2. System Set Manager ⇒ Systems —List of systems now selected. To remove systems from this set, select them and click theRemove button.6.4.4.3. System Set Manager ⇒ Errata —List of Errata Updates applicable to the current system set. Click the number in the Systemscolumn to see to which systems in the System Set Manager the given Errata applies. Toapply updates, select the Errata and click the Apply Errata button.6.4.4.4. System Set Manager ⇒ Packages —Options to modify packages on the system within the following subtabs (Click the num-ber in the Systems column to see to which systems in the System Set Manager the givenpackage applies):— When selecting packages to install, upgrade, or remove,Provisioning customers have the option of running a remote commandautomatically before or after the package installation. Refer toSection 6.4.2.8.1.8 System Details ⇒ Details ⇒ Remote Command — for moreinformation.6.4.4.4.1. System Set Manager ⇒ Packages ⇒ Upgrade —A list of all the packages installed on the selected systems that might be upgraded. Systemsmust be subscribed to a channel providing the package for the system to be able to upgradethe package. If multiple versions of a package appear, note that only the latest versionavailable to each system is upgraded on that system. Select the packages to be upgraded,then click the Upgrade Packages button.