我的任务之一是需要从文件列表中创建ISO映像。我发现this gist(根据作者的代码是在公共领域)。
我的公司仅使用Powershell 6.2.2,这就是我必须处理的事实。问题是代码在Powershell 5.1中可以完美地工作,但在Powershell 6.2.2中却不能!它给了我以下错误:
Add-Type : A parameter cannot be found that matches parameter name 'CompilerParameters'.
At E:\work\MSPV\New_ISOfile.ps1:19 char:11
+ Add-Type -CompilerParameters $cp -TypeDefinition @"
+ ~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Add-Type], ParameterBindingException
+ FullyQualifiedErrorId : NamedParameterNotFound,Microsoft.PowerShell.Commands.AddTypeCommand
Unable to find type [My.FileUtil].
At E:\work\MSPV\New_ISOfile.ps1:52 char:2
+ [My.FileUtil]::WriteIStreamToFile($istream, $fileName)
+ ~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (My.FileUtil:TypeName) [], RuntimeException
+ FullyQualifiedErrorId : TypeNotFound
我发现的唯一一件事是,根据MS文档,在Powershell 6.x中没有Add-Type cmdlet这样的参数,例如'-CompilerParameters',但是在Powershell 5中(即5.1)有一个。尝试将其替换为“ -CompilerOptions”,但这没有帮助。同样的错误。
有什么方法可以使其在Powershell 6.2上运行?
答案 0 :(得分:1)
实际上,该呼叫在PS 6+中已消失,因为文档-CompilerParameters
已被-CompilerOptions
取代,并且需要字符串参数。
您必须按照以下说明直接调用
Add-Type -CompilerOptions "/unsafe" -TypeDefinition
如果您来自function New-IsoFile
,请提供完整的代码
function New-IsoFile
{
[CmdletBinding(DefaultParameterSetName='Source')]Param(
[parameter(Position=1,Mandatory=$true,ValueFromPipeline=$true, ParameterSetName='Source')]$Source,
[parameter(Position=2)][string]$Path = "$env:temp\$((Get-Date).ToString('yyyyMMdd-HHmmss.ffff')).iso",
[ValidateScript({Test-Path -LiteralPath $_ -PathType Leaf})][string]$BootFile = $null,
[ValidateSet('CDR','CDRW','DVDRAM','DVDPLUSR','DVDPLUSRW','DVDPLUSR_DUALLAYER','DVDDASHR','DVDDASHRW','DVDDASHR_DUALLAYER','DISK','DVDPLUSRW_DUALLAYER','BDR','BDRE')][string] $Media = 'DVDPLUSRW_DUALLAYER',
[string]$Title = (Get-Date).ToString("yyyyMMdd-HHmmss.ffff"),
[switch]$Force,
[parameter(ParameterSetName='Clipboard')][switch]$FromClipboard
)
Begin {
($cp = new-object System.CodeDom.Compiler.CompilerParameters).CompilerOptions = '/unsafe'
if (!('ISOFile' -as [type])) {
Add-Type -CompilerOptions "/unsafe" -TypeDefinition @'
public class ISOFile
{
public unsafe static void Create(string Path, object Stream, int BlockSize, int TotalBlocks)
{
int bytes = 0;
byte[] buf = new byte[BlockSize];
var ptr = (System.IntPtr)(&bytes);
var o = System.IO.File.OpenWrite(Path);
var i = Stream as System.Runtime.InteropServices.ComTypes.IStream;
if (o != null) {
while (TotalBlocks-- > 0) {
i.Read(buf, BlockSize, ptr); o.Write(buf, 0, bytes);
}
o.Flush(); o.Close();
}
}
}
'@
}
if ($BootFile) {
if('BDR','BDRE' -contains $Media) { Write-Warning "Bootable image doesn't seem to work with media type $Media" }
($Stream = New-Object -ComObject ADODB.Stream -Property @{Type=1}).Open() # adFileTypeBinary
$Stream.LoadFromFile((Get-Item -LiteralPath $BootFile).Fullname)
($Boot = New-Object -ComObject IMAPI2FS.BootOptions).AssignBootImage($Stream)
}
$MediaType = @('UNKNOWN','CDROM','CDR','CDRW','DVDROM','DVDRAM','DVDPLUSR','DVDPLUSRW','DVDPLUSR_DUALLAYER','DVDDASHR','DVDDASHRW','DVDDASHR_DUALLAYER','DISK','DVDPLUSRW_DUALLAYER','HDDVDROM','HDDVDR','HDDVDRAM','BDROM','BDR','BDRE')
Write-Verbose -Message "Selected media type is $Media with value $($MediaType.IndexOf($Media))"
($Image = New-Object -com IMAPI2FS.MsftFileSystemImage -Property @{VolumeName=$Title}).ChooseImageDefaultsForMediaType($MediaType.IndexOf($Media))
if (!($Target = New-Item -Path $Path -ItemType File -Force:$Force -ErrorAction SilentlyContinue)) { Write-Error -Message "Cannot create file $Path. Use -Force parameter to overwrite if the target file already exists."; break }
}
Process {
if($FromClipboard) {
if($PSVersionTable.PSVersion.Major -lt 5) { Write-Error -Message 'The -FromClipboard parameter is only supported on PowerShell v5 or higher'; break }
$Source = Get-Clipboard -Format FileDropList
}
foreach($item in $Source) {
if($item -isnot [System.IO.FileInfo] -and $item -isnot [System.IO.DirectoryInfo]) {
$item = Get-Item -LiteralPath $item
}
if($item) {
Write-Verbose -Message "Adding item to the target image: $($item.FullName)"
try { $Image.Root.AddTree($item.FullName, $true) } catch { Write-Error -Message ($_.Exception.Message.Trim() + ' Try a different media type.') }
}
}
}
End {
if ($Boot) { $Image.BootImageOptions=$Boot }
$Result = $Image.CreateResultImage()
[ISOFile]::Create($Target.FullName,$Result.ImageStream,$Result.BlockSize,$Result.TotalBlocks)
Write-Verbose -Message "Target image ($($Target.FullName)) has been created"
$Target
}
}