Fix: Cannot run upgrade script on host, ESXi 5.5 

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During a recent upgrade I found that one of the ESXi hosts just would not update using Update Manager. The error I was seeing was “Cannot run upgrade script on host”.

After a bit of searching I found this article which related to ESXi 5.1 upgrade to 5.5 but the steps worked well to fix the issue I was seeing.

In order to fix the issue I performed the following steps:

Step 1: Disable HA for the cluster

Disable Cluster HA

Step 2: Go to vCenter Networking. Select the distributed vswitch and then select the hosts tab. From here, right-click on the host you need to reboot and select Remove from vSphere Distributed Switch

Remove Distributed Switch

Click Yes to remove the host from the switch.

Confirm vDS Removal

Step 3: Remove the host from the cluster

Remove ESXi host from cluster

Step 4: Enter the host into maintenance mode and then choose to reboot.

Enter Maintenance Mode
Step 5: Connect via SSH to the ESXi host and run the following commands to uninstall the FDM agent:

>
cp /opt/vmware/uninstallers/VMware-fdm-uninstall.sh /tmp
chmod +x /tmp/VMware-fdm-uninstall.sh
/tmp/VMware-fdm-uninstall.sh
>

SSH Host FDM Uninstaller
Step 6: Reboot the host

Reboot the host
Step 7: Add the ESXi host back to the cluster

rejoin host to cluster step 1

rejoin host to cluster step 2

rejoin host to cluster step 3

rejoin host to cluster step 4
Step 8: Re-add the host to the Distributed vSwitch. Go to Networking -> select the distributed vswitch. Right-click and select Manage Hosts.

Manage vDS

Select the host

Select Host

Select vnics for Uplinks to be managed by the switch

Manage vDS uplinks

Step 9: Turn vSphere HA back on for the cluster the host resides on.

Turn on vSphere HA

Step 10: Run the upgrade again from Update Manager and this time it will work.

How To: VMware vCenter 5.0 to 5.5 Update 2 Upgrade – Part 3

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Other posts in this series:

 Step 10:  Upgrade vCenter Inventory Service on Primary

10.1: Select vCenter Inventory Service and click Install

vCenter Inventory Service installation

10.2: Leave the default language settings and click Ok

vCenter Inventory Service installation step 2

10.3: Click Next on the initial screen

vCenter Inventory Service installation Step 3

10.4: Accept the EULA and click Next

vCenter Inventory Service installation Step 4

10.5: Select to keep the existing data and click next

vCenter Inventory Service installation Step 5 Read More

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Veeam Operations Manager Monitoring Pack Offer

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Free Veeam Management Pack for System Center Operations Manager 2012

Veeam are currently offering a free 10-socket license of Veeam (nWorks) Management Pack for new Veeam MP users who are using System Center Operations Manager 2012. This fantastic offer allows customers to officially license and get maintenance support for up to 5 (2 socket) ESX hosts. This is a substantial offer for any small/medium sized business.

The Veeam Management Pack 10-Pack includes:

  • A free 10-socket license of the Veeam Management Pack for deep VMware monitoring in System Center 2012
  • One full year of maintenance and support

More information on the off can be found here. I would recommend anybody that has System Center Operations Manager 2012 in their environment to leverage the knowledge base already collected for System Center Operations Manager to monitor their VMware environment efficiently and effectively.

Veeam Management Pack Integration

Veeam Management Pack provides built-in intelligence to increase productivity and reduce the learning curve for front-line operations staff. It also delivers instant value with hundreds of out-of-the-box rules, monitors, topology diagrams and reports on VMware performance and events while lowering administration and deployment overhead through centralized management and configuration. The management pack includes enterprise-class features such as high-availability, load balancing and a distributed, scalable architecture. Veeam Management Pack leverages native vSphere APIs to gather its data.