Functions/Mount-VhdAndRunBlock.ps1
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function Mount-VhdAndRunBlock { <# .Synopsis Mount a VHD(x), runs a script block and unmounts the VHD(x) driveleter stored in $driveLetter .DESCRIPTION Us this function to read / write files inside a vhd. Any objects emited by the scriptblock are returned by this function. .EXAMPLE Mount-VhdAndRunBlock -Vhd c:\win10.vhdx -Block { Copy-Item -Path 'c:\myfiles\unattend.xml' -Destination "$($driveletter):\unattend.xml"} .EXAMPLE $fileFound = Mount-VhdAndRunBlock -Vhd c:\lab.vhdx -ReadOnly { test-path "$($driveletter):\scripts\changesmade.log" } #> param ( # Path to VHD(x) file [Parameter(Mandatory=$true)] [ValidateNotNull()] [ValidateNotNullOrEmpty()] [string] $vhd, # Script block to execute (Drive letter stored in $driveletter) [Parameter(Mandatory=$true)] [scriptblock] $block, # Mount the VHD(x) readonly, This is faster. Use when only reading files. [switch] $ReadOnly ) # This function mounts a VHD, runs a script block and unmounts the VHD. # Drive letter of the mounted VHD is stored in $driveLetter - can be used by script blocks if($ReadOnly) { $virtualDisk = Mount-VHD $vhd -ReadOnly -Passthru } else { $virtualDisk = Mount-VHD $vhd -Passthru } # Workarround for new drive letters in script modules $null = Get-PSDrive $global:driveLetter = ($virtualDisk | Get-Disk | Get-Partition | Get-Volume).DriveLetter $newScriptBlock = [scriptblock]::Create($block.ToString()) & $newScriptBlock Dismount-VHD $vhd # Wait 2 seconds for activity to clean up Start-Sleep -Seconds 2 } |