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Patch-VMHost (modification of post by view diff)
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This script will patch an ESX Host using VMware Update Manager.

You need to install the VMware.VumAutomation on the host where you want to run this script.

  1. Add-PSSnapin "VMware.VimAutomation.Core"
  2. Add-PSSnapIn "VMware.VumAutomation"
  3.  
  4. # Connect to vCenter
  5. $VC = Connect-VIServer (Read-Host "Enter vCenter server")
  6.  
  7. $vumConfig = Get-VumConfig
  8. $EsxHost = Get-Inventory -Name (Read-Host "Enter ESX Host")
  9. $CriticalHost = Get-Baseline -Name "Critical Host Updates"
  10. $NonCriticalHost = Get-Baseline -Name "Non-critical Host Updates"
  11.  
  12.   # Enter Maintenance mode
  13.   Set-VMHost $EsxHost -State Maintenance
  14.  
  15.   # Attach baseline
  16.   Attach-Baseline -Entity $EsxHost -Baseline $CriticalHost, $NonCriticalHost
  17.                
  18.   # Check Compliance
  19.   $ScanTask = Scan-Inventory $EsxHost -RunAsync
  20.   Wait-Task -Task $ScanTask
  21.  
  22.   Get-Compliance -Entity $EsxHost
  23.  
  24.   # Remediate the ESX Host
  25.   $RemediateTask = Remediate-Inventory -Entity $EsxHost -Baseline $CriticalHost, $NonCriticalHost -HostFailureAction $vumConfig.HostFailureAction -Confirm:$false
  26.                
  27.   Wait-Task -Task $RemediateTask               
  28.                                
  29.   # Detach Baseline
  30.   Detach-Baseline -Baseline $CriticalHost, $NonCriticalHost -Entity $EsxHost
  31.                
  32.   # Exit Mantenance mode
  33.   Set-VMHost $EsxHost -State Connected 
  34.        
  35. # Disconnect from vCenter
  36. Disconnect-VIServer -Confirm:$False

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