Restart machine using powershell script

Question

I am running the below code but the restart is not working. My intention was to run restart command parallelly on all remote machines at once.

$YourFile = gc "machinelst.txt"
$username = "user1"
$password = "pass1"
$secpw = ConvertTo-SecureString $password -AsPlainText -Force
$cred  = New-Object Management.Automation.PSCredential ($username, $secpw)

foreach ($computer in $YourFile)
{
    Invoke-Command -ComputerName $computer -credential $cred -ErrorAction Stop -ScriptBlock { Restart-Computer -ComputerName $computer -Force } -AsJob
     
}

Thanks for your reply, i have remove the -ErrorAction Stop and run the script again.It is not restarting — Raghav
– Raghav, Commented Dec 31, 2020 at 13:21
Id Name PSJobTypeName State HasMoreData Location Command -- ---- ------------- ----- ----------- -------- ------- 76 Job76 RemoteJob Failed False RemoteHost1 Restart-Computer -Com... 78 Job78 RemoteJob Failed False RemoteHost2 Restart-Computer -Com... 80 Job80 RemoteJob Failed False RemoteHost3 Restart-Computer -Com... This is the output — Raghav
– Raghav, Commented Dec 31, 2020 at 13:24

Pete · Accepted Answer · 2020-12-31 13:28:25Z

1

That looks like its the output from Get-Job - could you try Receive-Job $id (Receive-Job 80).

Should give you the actual exception.

answered Dec 31, 2020 at 13:28

Pete

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Comments

js2010 · Accepted Answer · 2020-12-31 18:40:19Z

1

This likely runs in parallel just like invoke-command does with an array of computernames:

restart-computer computer01,computer02,computer03,computer04,computer05

Or this. It takes a couple minutes for the winrm service to come back, but they all seem to reboot at the same time.

$c = get-credential
$list = 1..10 | % tostring computer00
restart-computer $list -wait -protocol wsman -cr $c

edited Dec 31, 2020 at 18:40

answered Dec 31, 2020 at 17:18

js2010

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Comments

Esperento57 · Accepted Answer · 2020-12-31 14:00:42Z

0

try this (you will can add -asjob if it's work) :

$username = "yourdomain\user1"
$password = ConvertTo-SecureString "pass1" -AsPlainText -Force
$cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username, $password

get-content "machinelst.txt" | %{
Restart-Computer -ComputerName $_ -Authentication default -Credential $cred

}

if you want use job, you can do it :

$listjob=@()

get-content "machinelst.txt" | %{
$listjob+=Restart-Computer -ComputerName $_ -Authentication default -Credential $cred -AsJob
}

$listjob | Wait-Job -Timeout 30

$listjob | %{

    if ($_.State -eq 'Failed' )
    {
      Receive-Job -Job $_ -Keep
    }
   
}

edited Dec 31, 2020 at 14:00

answered Dec 31, 2020 at 13:29

Esperento57

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4 Comments

Raghav Over a year ago

ConvertTo-SecureString : Input string was not in a correct format. At restart.ps1:14 char:26 $password = "pass1" | ConvertTo-SecureString

Esperento57 Over a year ago

try with this change

Raghav Over a year ago

ok it seems like working now. One thing i want to know, this script will execute the restart parallely on all remote servers at once? or will it run sequential?.

Esperento57 Over a year ago

You can use the "-asjob" command to initiate parallel restarts, but restarting either takes time depending on the remote server. There may be gaps of a few seconds I think.

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