vSphere PowerCLI Reference



Updates the specified hosts.


Install-VMHostPatch [-VMHost] <VMHost[]> -HostPath <String[]> [-Server <VIServer[]>] [-RunAsync] [-WhatIf] [-Confirm] [<CommonParameters>]
Install-VMHostPatch [-VMHost] <VMHost[]> -WebPath <String[]> [-Server <VIServer[]>] [-RunAsync] [-WhatIf] [-Confirm] [<CommonParameters>]
Install-VMHostPatch [-VMHost] <VMHost[]> -LocalPath <String[]> [-HostUsername <String>] [-HostPassword <SecureString>] [-HostCredential <PSCredential>] [-Server <VIServer[]>] [-RunAsync] [-WhatIf] [-Confirm] [<CommonParameters>]

Related Commands

Online version

Detailed Description

Updates the specified hosts. The cmdlet installs on the host patches that can be located locally, on a web location, or in a host file system.
When using -LocalPath or -WebPath, the ESX/ESXi host attempts to store the patch contents in its local temporary directory. Because ESXi hosts have not enough free space on their local drives, this cannot apply to large size patches. The best practice for upgrading an ESXi host is to upload the patch contents on the host's datastore and to run Install-VMHostPatch with the HostPath parameter.
Depending on the component to be upgraded, you might have to set the host into a maintenance mode and to restart the host or the hostd management service after applying the patch.
This cmdlet is experimental and might be changed or removed in a future release.


NameTypeDescriptionRequired?Pipeline InputDefault Value
VMHostVMHost[]Specify the hosts you want to update.truetrue (ByValue)
ConfirmSwitchParameterIf the value is $true, indicates that the cmdlet asks for confirmation before running. If the value is $false, the cmdlet runs without asking for user confirmation.falsefalse$true
HostCredentialPSCredentialSpecify the credentials you want to use to authenticate with the host.falsefalse
HostPasswordSecureStringSpecify the password you want to use to authenticate with the host.falsefalse
HostPathString[]Specify a file path on the ESX host to the patches you want to install.truefalse
HostUsernameStringSpecify the username you want to use to authenticate with the host.falsefalse
LocalPathString[]Specify the local file system path to the patches you want to install.truefalse
RunAsyncSwitchParameterIndicate that the command returns immediately without waiting for the task to complete. In this mode, the output of the cmdlet is a Task object. For more information about the -RunAsync parameter run " help About_RunAsync" in the vSphere PowerCLI console.falsefalse
ServerVIServer[]Specify the vSphere servers on which you want to run the cmdlet. If no value is given to this parameter, the command runs on the default servers. For more information about default servers, see the description of Connect-VIServer.falsefalse
WebPathString[]Specify the web location of the patches you want to install.truefalse
WhatIfSwitchParameterIndicate that the cmdlet is run only to display the changes that would be made and actually no objects are modified.falsefalse

Return Type



The cmdlet works only on ESX 4.0 and higher versions.


-------------- Example 1 --------------

Install-VMHostPatch -VMHost $host1,$host2 -LocalPath c:\esx40\patches\ESX400-200906001\metadata.zip -HostUsername admin -HostPassword pass

Updates ESX servers using a local file. Before running the cmdlet, you must download the patch file locally and extract to a folder. The name of the folder must contain the patch ID (for example, "ESX400-200906001"). Providing credentials when installing a patch from a local path is mandatory.

-------------- Example 2 --------------

$host | Install-VMHostPatch -WebPath http://myInternalWebServer/esx40/ESX400-200906001/metadata.zip

Upgrades an ESX server using a Web location. Before running the cmdlet, you must download the patch file and extract to a folder that is published on a Web server. The patch URL address must contain the patch ID (for example, http://myInternalWebServer/esx40/ESX400-200906001/).

-------------- Example 3 --------------

$datastore = Get-Datastore -Name Datastore  Copy-DatastoreItem c:\temp\ESX400-200906001\  $datastore.DatastoreBrowserPath -Recurse  $host1,$host2 | Install-VMHostPatch -HostPath  /vmfs/volumes/datastore/ESX400-200906001/metadata.zip

Upgrades ESX servers using the -HostPath parameter. First, you must download the patch file and extract its contents to a temporary folder that is named after the patch ID (for example, c:\temp\ESX400-200906001\). Copy the folder in the root folder of the Datastore datastore and run Install-VMHostPatch providing the datastore path to the patch. Note that the datastore path is case-sensitive.

Copyright © 1998 - 2011 VMware, Inc. All rights reserved.