Powershell – Download a file with powershell on Nano Server

powershellwindows-nano-server

I've had some significant difficulties figuring out how exactly to download a file with PowerShell under Nano Server.

The challenge is the following:

  • There is no Invoke-WebRequest

  • There is no System.Net.WebClient

  • There is no Start-BitsTransfer

  • There is no bitsadmin

Does anyone know how to do this (seemingly simple) task?

Best Answer

There is an example here of downloading a zip file using PowerShell on Nano, you might have to modify it a bit for your purposes;

(from here: https://docs.asp.net/en/latest/tutorials/nano-server.html#installing-the-asp-net-core-module-ancm)

$SourcePath = "https://dotnetcli.blob.core.windows.net/dotnet/beta/Binaries/Latest/dotnet-win-x64.latest.zip"
$DestinationPath = "C:\dotnet"

$EditionId = (Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name 'EditionID').EditionId

if (($EditionId -eq "ServerStandardNano") -or
    ($EditionId -eq "ServerDataCenterNano") -or
    ($EditionId -eq "NanoServer") -or
    ($EditionId -eq "ServerTuva")) {

    $TempPath = [System.IO.Path]::GetTempFileName()
    if (($SourcePath -as [System.URI]).AbsoluteURI -ne $null)
    {
        $handler = New-Object System.Net.Http.HttpClientHandler
        $client = New-Object System.Net.Http.HttpClient($handler)
        $client.Timeout = New-Object System.TimeSpan(0, 30, 0)
        $cancelTokenSource = [System.Threading.CancellationTokenSource]::new()
        $responseMsg = $client.GetAsync([System.Uri]::new($SourcePath), $cancelTokenSource.Token)
        $responseMsg.Wait()
        if (!$responseMsg.IsCanceled)
        {
            $response = $responseMsg.Result
            if ($response.IsSuccessStatusCode)
            {
                $downloadedFileStream = [System.IO.FileStream]::new($TempPath, [System.IO.FileMode]::Create, [System.IO.FileAccess]::Write)
                $copyStreamOp = $response.Content.CopyToAsync($downloadedFileStream)
                $copyStreamOp.Wait()
                $downloadedFileStream.Close()
                if ($copyStreamOp.Exception -ne $null)
                {
                    throw $copyStreamOp.Exception
                }
            }
        }
    }
    else
    {
        throw "Cannot copy from $SourcePath"
    }
    [System.IO.Compression.ZipFile]::ExtractToDirectory($TempPath, $DestinationPath)
    Remove-Item $TempPath
}
Related Topic