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How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0


VMware announced the latest version of ESXi 6.0. Now its time to upgrade your ESXi 5.5 update 1 to ESXi 6.0 to utilize the new features and also to fix the issues reported on the vSphere 5.5 U1. This post will explain how to upgrade the ESXi 5.5 host to ESXi 6.0.
This upgrade can be easily achieved via vSphere Update Manager server. To upgrade to Esxi 6.0, Download ESXi 6.0 from the VMware download page and follow the below steps.

Once ESXi 6.0 ISO downloaded, open VMware Update Manager Client as shown below,
My ESXi host 192.168.100.102 version is ESXi 5.5.0 before the upgrade.

[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -01
Select ESXi 5.5 host which you want to upgrade & Click on Update Manager & then Admin View,
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -02
Now you will be able to see all Admin related VMware Update Manager tabs, Now click on ESXi Image-> Import ESXi Image,
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -03
In this step you have to upload downloaded ESXi 6.0 ISO image to vSPhere Update Magaer server, to upload it click on Browse & provide location of ESXi 6.0 ISO image and click Next.
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -04
Click on Ignore to continue using the current SSL certificate.
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Click next to proceed,
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -06
Provide name to Baseline,
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -07
Once ESXI ISO image upload gets over, you will see the uploaded ESXi Image.
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -08
Now select the Host to attach the newly created Host upgrade Baseline. Click on the Update Manager tab and click on Attach.
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -09
Select the checkbox for the baseline to attach to the ESXi 5.5 and Click on Attach. 
 [Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -10
Now Click on Remediate and click on Next.
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -11

[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -12
Accept the End user License Agreement and click on Next.
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Select the checkbox “Remove installed third-party software”  if you want to remove the installed third-party software that is incompatible with the upgrade, and continue with the remediation and click on Next.
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -14
Enter the Task name and description. If you want to schedule upgrade later time, schedule it and click Next.
 [Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -15
Change the Host Remediation options as per your requirements.
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Change the cluster Remediation options as per your requirement.
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Review the Remediation Settings and click on Finish to start the ESXi 6.0 Upgrade process.
 [Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -18

[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -19
Now My ESXi host 192.168.100.102 version is ESXi 6.0 after upgrade.
[Guide] How to upgrade ESXi 5.5 to ESXi 6.0 using vSphere Update Manager 6.0 -20