If you want to supply switches you'll have to do it the hard way as Update-Tools cmdlet doesn't support this feature.  Luckily, the hard way isn't all that hard, and I happened to blog about last night.  http://halr9000.com/article/605

In the article where you see $null, you can supply arguments to the installer.  I've never done so, so I can't tell you precisely how the command will work but that's how its done.

e.g.

$installerArgs = 'REBOOT="ReallySuppress"'

Get-VM | % { (Get-View $_).UpgradeTools_Task($installerArgs) }

Test it on a test VM first of course.  Just put a VM name following Get-VM to do that.

Author of the upcoming book: Managing VMware Infrastructure with PowerShell

Co-Host, PowerScripting Podcast (http://powerscripting.net)

I have not done this with PowerShell yet, but this is how I do it via shell script on the Windows VMs.  VMwareToolsUpgrader just get the tools distribution and passes the rest of the arguments after -p to Setup.exe.  You can see that arguments are then passed to msiexec using the /v switch.  Not sure if adding /v"/qn /norestar" will help you in this case or not.

"C:\Program Files\VMware\VMware Tools\VMwareToolsUpgrader.exe" -p "/s /v\"/qn /norestart /L*v C:\Windows\Temp\ToolsUpgrade.log\""

I would recommend using something like Process Monitor or Process

Explorer to see what is actually running on the VM when you run your

code (in PM you can filter on vmwaretoolsupgrader.exe, setup.exe, and msiexec.exe).  This is how I managed to get a working command string like above.  Snapshots are clearly a good thing in this situation so you can repeat the same actions.

Hi I came accross this ..

We also have the requirement to automate the upgrade vmware tools on 190 windows virtual machine with the no-reboot option  in a cluster.

If powershell can do this ..it will be a massive plus

Any one got this working yet

Get-VM | % { (Get-View $_).UpgradeTools_Task($null) }

Works but the virtual machines reboot

Trying the no-reboot option tomorrow

ok Cheers !!!!!!!

Combining bits of information from different postings, I came up with this Powershell script that will update VMWare tools without reboot for all VMs within a specified cluster that have a VMWare tools status of "old":

$insParm = '/s /v"/qn /norestart"'
$updList = get-cluster -name "DMZ-AMD-CLUSTER"|get-vm | where-object {$_.powerstate -eq "PoweredON"} | % {get-view $_.ID} |where {$_.guest.toolsstatus -match "toolsOld" }
foreach ($uVM in $updList)
{
$uVM.name
$uVM.UpgradeTools_Task($insParm)
#Wait 30 seconds before starting another update task
Start-sleep -s 30
}

JP1960's script works fine. Thanks for your help.