XenCenter

Update your Citrix Hypervisor™ hosts

Updates to Citrix Hypervisor 8.2 Cumulative Update 1 were delivered as hotfixes, which contained bug fixes for one or more specific issues.

Important:

Citrix Hypervisor 8.2 Cumulative Update 1 is now End of Life. No further hotfixes are provided.

Legacy hotfixes are also no longer available for download through XenCenter. You can continue to manually download hotfixes for Citrix Hypervisor 8.2 Cumulative Update 1. However, you are not required to apply these hotfixes before upgrading to XenServer 8.4.

Before you update

Before you apply an update to your servers, pay careful attention to the following:

  1. We strongly recommend that you read the release notes published with each update.
  2. Back up your data before applying an update. For backup procedures, see Disaster recovery and backup.
  3. We recommend that you reboot all your servers before installing an update and then verify their configuration. For example, check that the VMs start and that storage is accessible. This recommendation is because some configuration changes take effect only after a server is rebooted. The reboot might uncover configuration problems that might cause the update to fail.
  4. When you are upgrading a pool of servers to a newer version, you must upgrade each server in a pool starting with the pool coordinator. Ensure that the pool is up and running before applying any updates.
  5. Update ALL servers in a pool within a short period: running a mixed-mode pool (a pool that includes updated and non-updated servers) is not a supported configuration. Schedule the updates to minimize the amount of time that a pool runs in a mixed state.
  6. Update all servers within a pool sequentially, always starting with the pool coordinator.
  7. After applying an update to all servers in a pool, update any required driver disks before rebooting the servers.

Installing previously downloaded updates

XenCenter enables you to install updates that you have already downloaded. Update files are delivered as zip files on the Citrix product downloads website.

  1. From the XenCenter® menu, select Tools and then Install Updates.
  2. In the Install Updates wizard, select Citrix Hypervisor 8.2 CU1 or earlier and review the information on the Before You Start page. Click Next to continue.
  3. On the Select Update page, select Browse to locate the update file and then select Open. Select Next to continue.
  4. Select the pool and servers that you would like to update. Any servers or pools that cannot be updated are grayed out. Select Next to continue.
  5. Follow the instructions on the Install Update wizard to complete the update installation process.
  6. Select Finish to exit the wizard.
Update your Citrix Hypervisor™ hosts