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Set-VMFirmware

Windows Server 2012 R2 and Windows 8.1

Updated: June 10, 2014

Applies To: Windows 8.1, Windows PowerShell 4.0, Windows Server 2012 R2

Set-VMFirmware

Sets the firmware configuration of a virtual machine.

Syntax

Parameter Set: VMName
Set-VMFirmware [-VMName] <String[]> [-BootOrder <VMComponentObject[]> ] [-ComputerName <String[]> ] [-EnableSecureBoot <OnOffState> ] [-FirstBootDevice <VMComponentObject> ] [-Passthru] [-PreferredNetworkBootProtocol <IPProtocolPreference> ] [-Confirm] [-WhatIf] [ <CommonParameters>]

Parameter Set: VMFirmware
Set-VMFirmware [-VMFirmware] <VMFirmware[]> [-BootOrder <VMComponentObject[]> ] [-EnableSecureBoot <OnOffState> ] [-FirstBootDevice <VMComponentObject> ] [-Passthru] [-PreferredNetworkBootProtocol <IPProtocolPreference> ] [-Confirm] [-WhatIf] [ <CommonParameters>]

Parameter Set: VMObject
Set-VMFirmware [-VM] <VirtualMachine[]> [-BootOrder <VMComponentObject[]> ] [-EnableSecureBoot <OnOffState> ] [-FirstBootDevice <VMComponentObject> ] [-Passthru] [-PreferredNetworkBootProtocol <IPProtocolPreference> ] [-Confirm] [-WhatIf] [ <CommonParameters>]




Detailed Description

The Set-VMFirmware cmdlet sets the firmware configuration of a Generation 2 virtual machine.

Parameters

-BootOrder<VMComponentObject[]>

Specifies an array of devices. The boot order determines the order of the devices from which to boot. The acceptable values for this parameter are: 

  -- VMBootSource
  -- VMNetworkAdapter
  -- HardDiskDrive
  -- DVDDrive

The VMBootSource value describes a boot entry in firmware nonvolatile Random Access Memory (NVRAM).


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-ComputerName<String[]>

Specifies the names of the Hyper-V hosts whose firmware configuration you want to modify.


Aliases

none

Required?

false

Position?

named

Default Value

.

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-EnableSecureBoot<OnOffState>

Specifies whether to enable secure boot. The acceptable values for this parameter are: 

  -- On
  -- Off

Secure boot uses a public key infrastructure that protects the integrity of the operating system.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-FirstBootDevice<VMComponentObject>

Specifies the device from which to attempt to boot from first. The acceptable values for this parameter are: 

  -- VMBootSource
  -- VMNetworkAdapter
  -- HardDiskDrive
  -- DVDDrive

The VMBootSource value describes a boot entry in firmware NVRAM.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Passthru

Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-PreferredNetworkBootProtocol<IPProtocolPreference>

Specifies the IP protocol version to use during a network boot.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-VM<VirtualMachine[]>

Specifies the virtual machine objects for which want to modify the firmware configuration. To obtain a virtual machine object, use the Get-VM cmdlet.


Aliases

none

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

True (ByValue)

Accept Wildcard Characters?

false

-VMFirmware<VMFirmware[]>

Specifies an array of virtual machine firmware configurations. The cmdlet sets the firmware configurations you specify.


Aliases

none

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

True (ByValue)

Accept Wildcard Characters?

false

-VMName<String[]>

Specifies an array of names of virtual machines for which you want to modify the firmware configuration.


Aliases

none

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

True (ByValue)

Accept Wildcard Characters?

false

-Confirm

Prompts you for confirmation before running the cmdlet.


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.


Required?

false

Position?

named

Default Value

false

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

<CommonParameters>

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see    about_CommonParameters.

Inputs

The input type is the type of the objects that you can pipe to the cmdlet.

Outputs

The output type is the type of the objects that the cmdlet emits.

  • Microsoft.HyperV.Powershell.VMFirmware

Notes

  • Note: This cmdlet is supported only when run against Generation 2 virtual machines.

Examples

Example 1

This example enables secure boot functionality on the virtual machine “Test VM”.


PS C:\> Set-VMFirmware "Test VM" -EnableSecureBoot On

Example 2

This example sets the virtual machine “Test VM” to boot off of the VM network adapter object stored in $vmNetworkAdapter. This object was acquired using get-VMNetworkAdapter.


PS C:\> Set-VMFirmware "Test VM" -FirstBootDevice $vmNetworkAdapter

Example 3

Sets the boot order for the virtual machine “Test VM”. $vmNetworkAdapter contains a VM Network Adapter object (acquired using get-VMNetworkAdapter) and $vmHardDiskDrive contains a VM hard disk object (acquired using get-VMHardDiskDrive). Any existing boot entries not specified by this command will be removed from the virtual machine.


PS C:\> Set-VMFirmware "Test VM" -BootOrder $vmNetworkAdapter, $vmHardDiskDrive

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