6.4.4. System Set Manager —

A list of all the packages installed on the selected systems that might be upgraded. Systems must be subscribed to a channel providing the package for the system to be able to upgrade the package. If multiple versions of a package appear, note that only the latest version available to each system is upgraded on that system. Select the packages to be upgraded, then click the Upgrade Packages button.

A list of channels from which you may retrieve packages. This list includes all channels to which systems in the set are subscribed; a package is installed on a system only if the system is subscribed to the channel from which the package originates. Click on the channel name and select the packages from the list. Then click the Install Packages button.

A list of all the packages installed on the selected systems that might be removed. Multiple versions appear if systems in the System Set Manager have more than one version installed. Select the packages to be deleted, then click the Remove Packages button.

To subscribe or unsubscribe the selected systems in any of the channels, toggle the appropriate checkboxes and click the Alter Subscriptions button. Keep in mind that subscribing to a channel uses a channel entitlement for each system in the selected group. If too few entitlements are available, some systems fail to subscribe. Systems must subscribe to a base channel before subscribing to a child channel.

Use this subtab to distribute configuration files from your central repository on RHN to each of the selected systems. The table lists the configuration files associated with any of the selected systems. Clicking its system count displays the systems already subscribed to the file.

To subscribe the selected systems to the available configuration files, select the checkbox for each desired file. When done, click Deploy Configuration and schedule the action. Note that the files deployed are of the latest version at the time of scheduling and do not account for versions that may appear before the action takes place.

Use this subtab to validate configuration files on the selected systems against copies in your central repository on RHN. The table lists the configuration files associated with any of the selected systems. Clicking its system count displays the systems already subscribed to the file.

To compare the configuration files deployed on the systems with those in RHN, select the checkbox for each file to be validated. Then click Analyze Differences and schedule the action. Note that the files compared are of the latest version at the time of scheduling and do not account for versions that may appear before the action takes place. Find the results within the main Schedule category or within the System Details ⇒ Events tab.

Subscribe systems to configuration channels according to order of preference. This tab is available only to Satellite Administrators and Configuration Administrators. Enter a number in the Rank column to subscribe to a channel. Channels are accessed in the order of their rank, starting from the number 1. Channels not assigned a numeric value are not associated with the selected systems. Your local configuration channel always overrides all other channels. Once you have established the rank of the config channels, you must decide how they are applied to the selected systems.

The three buttons below the channels reflect your options. Clicking Subscribe with Highest Priority places all the ranked channels before any other channels to which the selected systems are currently subscribed. Clicking Subscribe With Lowest Priority places the ranked channels after those channels to which the selected systems are currently subscribed. Clicking Replace Existing Subscriptions removes any existing association and starts cleanly with the ranked channels, leaving every system with the same config channels in the same order.

In the first two cases, if any of the newly ranked config channels is already in a system's existing config channel list, the duplicate channel is removed and replaced according to the new rank, effectively reordering the system's existing channels. When such conflicts exist, you are presented with a confirmation page to ensure the intended action is correct. When the change has taken place, a message appears at the top of the page indicating the update was successful.

Administrators may unsubscribe from configuration channels by clicking the checkbox by the name of the channel and clicking Unsubscribe Systems button.

Administrators may enable configuration channel management by clicking the checkbox by the name of the channel and clicking Enable RHN Configuration Management button. You can also schedule the action by clicking the Schedule package installs for no sooner than radio button and using the drop-down menus to configure date and time, then clicking Enable RHN Configuration Management.

Use this subtab to re-install Red Hat Enterprise Linux on the selected Provisioning-entitled systems. To schedule kickstarts for these systems, select a distribution, identify the type (IP address or manual), and click Continue. Finish choosing from the options available on the subsequent screen. If any of the systems connect to RHN via a RHN Proxy Server, choose either the Preserve Existing Configuration radio button or the Use RHN Proxy radio button. If you choose to kickstart through a RHN Proxy Server, select from the available Proxies listed in the drop-down box beside the Use RHN Proxy radio button. All of the selected systems will kickstart through the selected Proxy. Click the Schedule Kickstart button to confirm your selections. When the kickstarts for the selected systems are successfully scheduled, the web interface returns you to the System Set Manager page.

Use this subtab to add meaningful descriptions to the most recent snapshots of your selected systems. To tag the most recent system snapshots, enter a descriptive term in the Tag name field and click the Tag Current Snapshots button.

Use this subtab to rollback selected Provisioning-entitled systems to previous snapshots marked with a tag. Click the name of the tag, verify the systems to be reverted, and click the Rollback Systems button.

Use this subtab to issue remote commands on selected Provisioning-entitled systems. First create a run file on the client systems to allow this function to operate. Refer to the description of the Configuration subtab of the Channels tab for instructions. You may then identify a specific user, group, timeout period, and the script on this page. Select a date and time to perform the command, and click Schedule Remote Command.

Click Update Hardware Profile followed by the Confirm Refresh button to schedule a hardware profile update. Clicking Update Package Profile,followed by the Confirm Refresh button schedules a package profile update.

Click Set a custom value for selected systems followed by the name of a key to allow you to provide values for all selected systems. Enter the information and click the Set Values button. Click Remove a custom value from selected systems followed by the name of a key to allow you to remove values for all selected systems. Click the Remove Values button to finalize the deletion.

Select the appropriate systems and click the Reboot Systems link to set those systems for reboot. To immediately cancel this action, click the list of systems link that appears within the confirmation message at the top of the page, select the systems, and click Unschedule Action.

Select the appropriate systems and click the Lock Systems link to prevent the scheduling of any action through RHN that affects the selected systems. This can be reversed by clicking the Unlock Systems link.

Click Delete System Profiles, then click the Confirm Deletions button to remove the selected profiles permanently.

Select, via the radio button, whether to Add, Remove, or make No Change in the entitlements of the selected systems. Click the Change Entitlements button to confirm your selection.

Toggle the Yes and No radio buttons and click the Change Preferences button to alter your notification preferences for the selected systems. You may apply these preferences to individual systems through the Properties subtab of the System Details page. Refer to Section 6.4.2.9.1.2, “System Details ⇒ Details ⇒ Properties” for instructions.