Dismount-VMHostAssignableDevice
Dismounts a device from a virtual machine (VM) host.
Syntax
Default (Default)
Dismount-VMHostAssignableDevice
[-InstancePath <String>]
[-LocationPath <String>]
[-Force]
[-Passthru]
[-CimSession <CimSession[]>]
[-ComputerName <String[]>]
[-Credential <PSCredential[]>]
[-WhatIf]
[-Confirm]
[<CommonParameters>]
Description
The Dismount-VMHostAssignableDevice cmdlet is used to dismount an assignable device from the
virtual machine host. Use this cmdlet when you need to reassign a device or resolve conflicts
between devices and virtual machines.
Examples
Example 1
Dismount-VMHostAssignableDevice -InstancePath "PCIROOT(0)#PCI(1D02)#PCI(0000)"
This example dismounts the device with the specified instance path from the host, making it available for assignment to a virtual machine.
Parameters
-CimSession
Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.
Parameter properties
| Type: | CimSession[] |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-ComputerName
Specifies one or more Hyper-V hosts from which the assignable devices are to be dismounted. NetBIOS
names, IP addresses, and fully qualified domain names are allowed. The default is the local
computer. Use localhost or a dot (.) to specify the local computer explicitly.
Parameter properties
| Type: | String[] |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
Path
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Confirm
Prompts you for confirmation before running the cmdlet.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | cf |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Credential
Specifies one or more user accounts that have permission to perform this action. The default is the current user.
Parameter properties
| Type: | PSCredential[] |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Force
Forces the command to run without asking for user confirmation.
Using the Force parameter also overrides some security checks in the platform. To learn more, see Dismount the device from the host partition .
If no partitioning driver is provided, during dismount, you must use -Force to bypass the
security warning. For more information about the security implications, see Plan for deploying devices by using Discrete Device Assignment.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-InstancePath
Represents the Device Instance path in the host machine.
Parameter properties
| Type: | String |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-LocationPath
Specifies the location path to the assignable device.
Parameter properties
| Type: | String |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Passthru
Returns an object for each process that the cmdlet started.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | wi |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.