Positional Parameter error in powershell script - powershell

I was trying to install/update EPO agent through PowerShell, but I am getting below error.
I am new to PowerShell so I am not able to see what is causing this.
Below is the script I used to update the agent :
Start-Process -FilePath $scriptpath "\INAEPO01_Framepkg.exe" "/FORCEINSTALL" "/INSTALL=AGENT" -Wait
Error :
Positional parameter cannot be found that accepts argument
/FORCEINSTALL.

Try it like that, i.e. add commas between the arguments so that they form an array
Start-Process -FilePath $scriptpath "\INAEPO01_Framepkg.exe","/FORCEINSTALL", "/INSTALL=AGENT" -Wait
or to be more explicit
Start-Process -FilePath $scriptpath -ArgumentList "\INAEPO01_Framepkg.exe", "/FORCEINSTALL", "/INSTALL=AGENT" -Wait

Related

How to add special characters in MSI installation argument?

Here i trying to install MSI package with argument in powershell where i have to pass few special characters as below:
$msi="/I mypkg.msi TARGETAPPPOOL='.NET v4.5 Classic' /L mai.log /qn"
Start-process "msiexec.exe" -ArgumentList $msi -wait -nonewwindow -PassThru
Showing "1639" error code - A command line option passed to the installer is invalid.
Installation working well with default value, if I remove "TARGETAPPPOOL='.NET v4.5 Classic'”
Can you please suggest how we can write it?
Thanks
Pass the arguments as an array like this:
$msi = '/I', 'mypkg.msi', 'TARGETAPPPOOL=".NET v4.5 Classic"', '/L', 'mai.log', '/qn'
Start-process "msiexec.exe" -ArgumentList $msi -wait -nonewwindow -PassThru
PowerShell automatically adds space separator between the arguments.

Specifying complete installation option when running msi from powershell

I am trying to automate the installation of gstreamer on windows using powershell
I have the msi file downloaded, and am installing it as shown below
PS C:\Users\Administrator> $path = "C:\Users\Administrator\Downloads\gstreamer-1.0-devel-mingw-x86_64-1.18.0.msi";
PS C:\Users\Administrator> Start-Process -Wait -FilePath $path -Argument "/qn"
However, this does not get me the complete installation, because it is only selecting the default arguments from the installer.
I need to specify for it to perform the complete installation, how can I modify my arguments? So that it selects "complete" installation and not "typical" like it does by default
These should work:
Start-Process -Wait -FilePath $path -Argument "/qn","Complete=1"
Start-Process -Wait -FilePath $path -Argument "/qn Complete=1"
I had the same problem, so I ran the Installer from power shell with and without the /qn argument and logged the process into two different files. Finally, I compared the result and I was able to find that for installing process using the UI it adds a property called INSTALLLEVEL, which is set to 1000 (don't know why this value yet). So, by adding the argument INSTALLLEVEL=1000 it installs the complete version.
Start-Process -Wait -FilePath gstreamer-1.0-mingw-x86_64-1.20.2.msi -Argument "/qn INSTALLLEVEL=1000"
I had tried below but it did not work
Start-Process -Wait -FilePath $path -Argument "/qn","Complete=1"
Start-Process -Wait -FilePath $path -Argument "/qn Complete=1"
While this is working fine for me.
Start-Process -Wait -FilePath gstreamer-1.0-mingw-x86_64-1.20.2.msi -Argument "/qn INSTALLLEVEL=1000"

How to pass args to aspnet_regiis via powershell

I have 2 scripts:
Launch.ps1
Deploy.ps1
Launch simply runs deploy as administrator:
clear
$scriptPath = split-path -parent $MyInvocation.MyCommand.Definition
$scriptPathToRun = "$scriptPath\Deploy.ps1"
Start-Process -Verb runAs PowerShell -ArgumentList '-noexit','-File', $scriptPathToRun
I am trying to pass arguments to aspnet_regiis, I have tried the following:
Start-Process -NoNewWindow "$env:windir\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis" -ArgumentList '–ga', 'domian\serviceAccount'
Start-Process -NoNewWindow "$env:windir\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis" -ArgumentList '–ga domian\serviceAccount'
Start-Process -NoNewWindow "$env:windir\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis" -ArgumentList #('–ga', 'domian\serviceAccount')
& "$env:windir\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis" '–ga domian\serviceAccount'
& "$env:windir\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis" '–ga', 'domian\serviceAccount'
& "$env:windir\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis" #('–ga', 'domian\serviceAccount')
In all these attempts, aspnet_regiis is run but it appears no args are passed to it because the output is just a listing of available aspnet_regiis parameters.
Can someone point out what I'm missing? Thanks.
The simplest answer is probably to just run the command using the call/invocation (&) operator:
& "$env:SystemRoot\Microsoft.Net\Framework64\v4.0.30319\aspnet_regiis" -ga domain\serviceAccount
If you really wanted to use Start-Process, you should be able to write it this way:
Start-Process "$env:SystemRoot\Microsoft.Net\Framework64\v4.0.30319\aspnet_regiis" "-ga","domain\serviceAccount" -NoNewWindow
The first token on that command line is the executable to run (i.e., -FilePath). The -ArgumentList parameter is an array (i.e., "-ga","domain\serviceAccount").

passing double quotes through PowerShell and msiexec

I am trying to install the Tenable Nessus agent via PowerShell script and am running into no end of issues because the Nessus MSI syntax requires a mix of no quotes and double quotes. The problem I am running into is that PowerShell needs me to escape the double quotes which seems to break the syntax understood by msiexec.exe. Let me show you what I am doing and what I have tried. I am not a strong PowerShell person, and the solution is escapes me.
Here is the code block where I set the variable with all the MSI arguments. The Nessus syntax requires that all its configs be surrounded by double quotes except for NESSUS_KEY. Earlier in the script I define the other variables.
$MSI_Arguments = #(
"/i"
"$Install_File"
"NESSUS_KEY=$Nessus_Key"
"NESSUS_SERVER=""cloud.tenable.com:443"""
"NESSUS_NAME=""$FQDN"""
"NESSUS_GROUPS=""$Nessus_Group"""
# The colon in front of a variable needs special treatment ({}).
"NESSUS_PROXY_SERVER=""${Proxy_Server}:${Proxy_Port}"""
"NESSUS_OFFLINE_INSTALL=""yes"""
"/qn"
"/norestart"
"/L*v ""$LogPath\Tenable_MSI.log"""
)
I then try running the command like so. This command does not work properly - the install proceeds, but because the parameters in -ArgumentList needs to be surrounded by double quotes, it does not get all the parameters, resulting in a broken installation.
$MSI_Command = Start-Process -Wait -NoNewWindow -PassThru -FilePath "msiexec.exe" -ArgumentList $MSI_Arguments
When I put $MSI_Arguments in double quotes, I then break how PowerShell deals with the double quotes in the variable code block. I have tried the following, but none work.
$MSI_Command = Start-Process -Wait -NoNewWindow -PassThru -FilePath "msiexec.exe" -ArgumentList "$MSI_Arguments"
$MSI_Command = Start-Process -Wait -NoNewWindow -PassThru -FilePath "msiexec.exe" -ArgumentList "$$(MSI_Arguments)"
$MSI_Command = Start-Process -Wait -NoNewWindow -PassThru -FilePath "msiexec.exe" -ArgumentList "${MSI_Arguments}"
I have even tried just running the command straight-up, no variables, just to try and figure out the syntax. I tried two double quotes (similar to what I am trying in the variable code block) and it it works.
Start-Process -Wait -NoNewWindow -PassThru -FilePath "msiexec.exe" -ArgumentList "/i C:\temp\NessusAgent-7.7.0-x64.msi NESSUS_KEY= NESSUS_SERVER=""cloud.tenable.com:443"" NESSUS_NAME=""foo"" NESSUS_GROUPS=""bar"" NESSUS_PROXY_SERVER=""proxy.company.com:80"" NESSUS_OFFLINE_INSTALL=""yes"" /qn /norestart /L*v ""C:\temp\Tenable_MSI.log"""
Now that I have a working command, I cannot figure out how to modify the variable block to work. If I just add more doubled double quotes, I get errors. If I add "" I get errors. If I add " I get errors... I am so close, yet so far.
Please, rescue me from this hell I am in. At this point I am wondering if Passing double quotes through PowerShell + WinRM has the answer, and I should base64 encode the install string, but that may be beyond my skillset given how I use variables...

Start-Process and the Stop Parsing (--%) parameter

I am having trouble getting the --% parameter to work as expected. My $TaskParams variable has the character '<' which is interpreted as a redirection by powershell, therefore needs to be escaped.
However the following does not work:
$CreateTask = Start-Process PowerShell.exe "$ScriptLocation --% $TaskParams" -Wait -PassThru
Without the --%, and when I manually remove any '<' characters, it works:
$CreateTask = Start-Process PowerShell.exe "$ScriptLocation $TaskParams" -Wait -PassThru
error received:
Start-Process : A positional parameter cannot be found that accepts argument
'--%'.
note: I am using PS 5.0
Am I using the --% parameter wrong? Any help or pointers is appreciated. Thanks
The stop-parsing symbol --% only works when calling executables directly or with the call operator &; it's not for use when calling PowerShell scripts / functions / cmdlets.
You do not need to spin up a new copy of powershell.exe or use Start-Process to run a script from within another script. Just put the script command and its parameters as a line from within the other script. For example, suppose you have script2.ps1:
param(
[String] $Name
)
Write-Host "Hello, $Name"
Now suppose you also have script1.ps1:
Write-Host "This is script1.ps1"
.\Script2.ps1 -Name "Bill Stewart"
Write-Host "script1.ps1 is finished"
If you now run script1.ps1:
PS C:\> .\Script1.ps1
This is script1.ps1
Hello, Bill Stewart
script1.ps1 is finished
If you really want to use Start-Process you could encode the argument, and run it as such. I use something similar to this when elevating past UAC:
$Code = ". '$ScriptLocation' $TaskParams"
$Encoded = [Convert]::ToBase64String([Text.Encoding]::Unicode.GetBytes($code))
Start-Process PowerShell.exe -ArgumentList "-EncodedCommand",$Encoded -Wait -PassThru
I'm fairly certain that would accomplish what you're looking for.