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Forked from jonathanelbailey/iso_image_edit.psm1
Last active May 1, 2022 18:16
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A PowerShell module to "modify" ISO images.
# this function grabs the iso image from the user supplied http location.
function Get-IsoImage {
begin {
$file_name = $uri -replace "http://[\s\S]+\/([\s\S]+\.iso)$", '$1'
$out_file = Join-Path $workingfolder -ChildPath $file_name
process {
$web_req = measure-command { Invoke-WebRequest -Uri $uri -OutFile $out_file }
end {
Write-host "time:" + $web_req.Minutes + "min"
Write-Output gci $out_file
# this function creates the working directory that the image will be working out of.
function New-IsoWorkspace {
$mount_folder = Join-Path $workingfolder -ChildPath "mount"
mkdir $mount_folder | out-null
$mount_obj = Mount-DiskImage -ImagePath $imagepath -StorageType ISO
$drive = ($mount_obj | Get-Volume).DriveLetter + ":"
copy-item $drive\* $mount_folder -force -recurse | out-null
Write-Output (Get-ChildItem $mount_folder)
# taken from, created by Chris Wu
function New-IsoFile {
Creates a new .iso file
The New-IsoFile cmdlet creates a new .iso file containing content from chosen folders
New-IsoFile "c:\tools","c:Downloads\utils"
This command creates a .iso file in $env:temp folder (default location) that contains c:\tools and c:\downloads\utils folders. The folders themselves are included at the root of the .iso image.
New-IsoFile -FromClipboard -Verbose
Before running this command, select and copy (Ctrl-C) files/folders in Explorer first.
dir c:\WinPE | New-IsoFile -Path c:\temp\WinPE.iso -BootFile "${env:ProgramFiles(x86)}\Windows Kits\10\Assessment and Deployment Kit\Deployment Tools\amd64\Oscdimg\efisys.bin" -Media DVDPLUSR -Title "WinPE"
This command creates a bootable .iso file containing the content from c:\WinPE folder, but the folder itself isn't included. Boot file can be found in Windows ADK. Refer to IMAPI_MEDIA_PHYSICAL_TYPE enumeration for possible media types:
NAME: New-IsoFile
AUTHOR: Chris Wu
LASTEDIT: 03/23/2016 14:46:50
[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 = $null,
[string]$Title = (Get-Date).ToString("yyyyMMdd-HHmmss.ffff"),
[parameter(ParameterSetName = 'Clipboard')][switch]$FromClipboard
Begin {
if (!('ISOFile' -as [type])) {
Add-Type -CompilerOptions "/unsafe" -TypeDefinition @'
public class ISOFile
public unsafe static void Create(string Path, object Stream, int BlockSize, int TotalBlocks)
int bytes = 0;
byte[] buf = new byte[BlockSize];
var ptr = (System.IntPtr)(&bytes);
var o = System.IO.File.OpenWrite(Path);
var i = Stream as System.Runtime.InteropServices.ComTypes.IStream;
if (o != null) {
while (TotalBlocks-- > 0) {
i.Read(buf, BlockSize, ptr); o.Write(buf, 0, bytes);
o.Flush(); o.Close();
if ($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)
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"
$iso_uri = ''
$working_folder = join-path $env:temp -childpath 'work'
$mount_folder = Join-Path $working_folder -ChildPath mount
get-isoimage -uri $iso_uri -workingfolder $working_folder
$iso_name = Split-Path $iso_uri -leaf
$image_path = join-path $working_folder -childpath $iso_name
new-isoworkspace -imagepath $image_path -workingfoler $working_folder
$ks_uri = ''
$ks_regexp = 'inst\.ks=hd:LABEL=CentOS\\x207\\x20x86_64:\/interactive-defaults\.ks'
$isolinux_cfg = join-path \temp\work\mount -ChildPath "isolinux\isolinux.cfg"
$content = get-content $isolinux_cfg -raw
($content -replace $ks_regexp,"inst.ks=$ks_uri").replace("`r`n","`n")| Set-Content $isolinux_cfg
$new_iso_path = join-path $working_folder -childpath $iso_name
dir $mount_folder | new-isoimage -path $new_iso_path -title "Ovirt-Node-Next-4.1-x86_64"
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