# Installing Operating System Updates on Existing Nodes Using Command Line

Operating system (OS) updates can be installed on HyperScale nodes to ensure that the OS has the most recent updates from Red Hat.

## Before You Begin

- CommServe and HyperScale nodes must be in the following Service Pack and Hot Fix level:

  - Service Pack 15 with hotfix pack 34 (or higher)

  - Service Pack 16 with hotfix pack 7 (or higher)

  - Service Pack 17 or higher

- Verify the version in the clients associated with the CommServe server and HyperScale nodes before upgrading the OS.

- The update process installs the updates provided by Red Hat for the OS. The process does not update other RPMs that may have been manually installed on the nodes.

- Navigate to `/etc/yum.repos.d` and cleanup everything, except `redhat.repo`. Download software will fail if there is anything other than the redhat repository.

- If you use a tape library on the Hyperscale nodes, you must upgrade the corresponding Linux tape driver (lin_tape), when the Kernel associated with the OS is upgraded. For more information, see Tape Library Support for HyperScale.

## Procedure

1. Setup a remote cache on one of the nodes in the storage pool that has the DDB configured on it. The OS updates will be installed, (or orchestrated) from this node.

   1. From the CommCell Console ribbon, on the Tools tab, click Add/Remove Software > Software Cache Configuration.

   2. In the Software Cache Configuration dialog box, click the Remote Software Cache tab and then click Add.

   3. From the Computer list, select the client associated with the HyperScale node where you want to configure the remote cache directory.

      In the Please Specify Cache Directory box, the default location for the remote cache is provided.

      Important

      Use the default location.

   4. Click Configure Packages to Sync.

   5. In the Configure Packages to Sync dialog box, choose the Customize Packages option. (The Sync Packages option will be enabled by default. Do not select any other options.)

   6. Click OK to save your configuration changes.

   7. Click OK to close the Modify Remote Software Cache Information dialog box.

      Note

      If there are multiple HyperScale clusters on a CommServe, one remote cache is required for each cluster.

2. Download the latest updates and populate the remote cache as follows:

   1. From the Command Center navigation pane, go to Manage > Maintenance.

      The Maintenance page appears.

   2. Click Download/copy software.

      The Download/copy software section appears, showing the current feature release, the latest available feature release, and the last job that was run.

   3. Click Run job .

      The Download/copy software dialog box appears.

   4. Select Download software using Internet or Local Copy, depending on your environment.

   5. In Download installation media, select the available feature release or maintenance release installation files that you want to download.

   6. In Operating system options, select the Unix check box, and then select Linux x86_64 from the drop-down list.

      Note

      The latest OS updates will be downloaded, irrespective of the selected option.

   7. In Remote caches to sync, select the HyperScale node in which the remote cache is configured.

   8. Click Download.

   Monitor the progress of the download job to ensure that the software is successfully downloaded and synchronized. For more information, see Viewing Jobs.

3. Set the MediaAgents associated with the nodes in the Maintenance mode. For more information about setting the MediaAgents in the Maintenance mode, see Marking a MediaAgent Offline for Maintenance.

   Important

   Make sure that all the MediaAgents in the storage pool are set in the maintenance mode before proceeding to the next step.

4. Login to the HyperScale node in which the remote cache is configured and navigate to the following folder:

       /opt/commvault/MediaAgent

   Use the system console to login to the node. For example, using KVM, not SSH.

5. Start the update installation using the following command:

       ./cvupgradeos.py

   Note

   `cvupgradeos.py` must be run using the console. Do not run `cvupgradeos.py` using SSH.

6. Type `y` and press `Enter` to continue.

   The installation process will start. The updates will be installed sequentially on each HyperScale node available in the current cluster. At the end of update installation, each node will be rebooted before moving on to the next node.

   The progress of the installation is displayed. The following logs can also be used to view the progress of the installation:

   1. `/var/log/commvault/Log_Files/cvupgradeos.log`

   2. Detailed progress of `yum update` can be monitored in `yum.log` and `yum.err.log` available in `<commvault_logs>/hsupgradedbg` folder

   A message will be displayed when the installation process is finished.

7. Once the installation is completed, check the status of the installation using the following command:

       ./cvupgradeos.py -status

   This will display a message similar to the following:

   If there is a failure, investigate the reason for the failure in `/var/log/commvault/Log_Files/cvupgradeos.log`. Correct the issue causing the failure and then rerun `cvupgradeos.py` to install the updates in the failed node.

8. Once the updates are successfully installed, remove the MediaAgents associated with the nodes from Maintenance mode. For more information about removing the MediaAgents from Maintenance mode, see Marking a MediaAgent Offline for Maintenance.

## Result

- The updates will be installed in all the HyperScale nodes.

- If the OS version is upgraded, you can verify the OS version as follows:

  1. From the Command Center navigation pane, go to Manage > Infrastructure > Server groups.

     The Server groups page appears.

  2. The server name, OS version, and other details are displayed for each server in the server group.

## Related Topics

Setting Up Non-Root LDAP Users

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