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HOW TO: Use VMware vCenter Update Manager to Upgrade VMware ESXi hosts

I recently upgraded VMware environment from vSphere 5.0 to vSphere 5.5 and thought I should document the host upgrade process.

For detailed instructions please refer to the “Upgrading and Migrating Your Hosts” topic of the vSphere Upgrade Guide.

  1. Connect the vSphere Client to a vCenter Server with which Update Manager is registered;
  2. Open Update Manager, Admin View;
  3. On the ESXi Image tab click on Import ESXi Image:
    Update VMware ESXi hosts VUM - 1
  4. Browse and Select the ISO image that you want to upload.
    This can either be:

  5. Import the ISO image
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  6. Upload successful
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  7. Create ESXi host upgrade baseline
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  8. New baseline:
    Update VMware ESXi hosts VUM - 5
  9. Select Datacenter / Cluster or individual host and attach the baseline:
    Update VMware ESXi hosts VUM - 6
  10. Select baseline and click Attach.
    Update VMware ESXi hosts VUM - 7
  11. In the Hosts and Cluster view right-click on the Cluster you attache the baseline to, select Scan for Updates, select Upgrades and click Scan.
    Update VMware ESXi hosts VUM - 8
  12. After Scan is completed, Update Manager will display the Host Compliance status:
    Update VMware ESXi hosts VUM - 9
  13. In the majority of cases the status will be Non-Compliant.  The reason these two hosts are Incompatible is that there are some outstanding software configuration changes that require a reboot.
    Update VMware ESXi hosts VUM - 10
  14. Reboot the host and re-Scan it for Upgrades:
    Update VMware ESXi hosts VUM - 19
  15. To upgrade a host, put it in Maintenance Mode, click on Remediate…, select Upgrade Baseline and click Next;
    Update VMware ESXi hosts VUM - 11
  16. Accept the License Agreement, click Next;
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  17. The ISO image that I am using for host upgrade includes all third-party software and drivers required for the new version of the ESXi (Thank you VCE! :) ) and therefore I will allow the removal of the incompatible software and drivers.
    Update VMware ESXi hosts VUM - 13
  18. Schedule the upgrade or run it immediately:
    Update VMware ESXi hosts VUM - 14
  19. Change Maintenance Mode options or accept defaults. Click Next;
    Update VMware ESXi hosts VUM - 15
  20. Change Cluster Remediation options or accept defaults. Click Next;
    Update VMware ESXi hosts VUM - 16
  21. Confirm the upgrade options and click Finish.
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  22. In the Recent Tasks pane, the remediation task is displayed and will remain at about 22 percent for most of the process. The process is still running and will take approximately 15 minutes to complete;
  23. After the upgrade the Host compliance status will change to Compliant.

 

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