Set-Dell1stBootdevice.ps1

function Set-Dell1stBootdevice {
<#
  .Synopsis
    Sets a bootdevice first in the boot sequence
  .Description
    This CmdLet sets a boot device first in the boot sequence. You can specify a substring of the name of the boot device.
    If a BIOS password (Admin or System password) is set, supply it using the -Password parameter.
  .Example
    Set-Dell1stBootdevice -bootdevice USB -password $Password
  .Example
    Set-Dell1stBootDevice hdd
#>

param(  
    [Parameter(Mandatory=$true, Position=0)][string] $Bootdevice,
    [Parameter(Mandatory=$false, Position=1)][string] $Password
  
 )

 BEGIN { 
 }
 PROCESS {
 
 #the process block is called for each item in the pipeline and you can reference it via $_
 
    $bs = Get-item -path DellSmbios:\BootSequence\Bootsequence
    $bootdevicearray = $bs.CurrentValue
    $bootdevicearray | foreach {
            if ($_.DeviceName.replace(' ','') -match ($bootdevice).replace(' ',''))
            {
                # $matches.count will include a count of all matches made from the last -match operation.
                if ($Matches.Count -gt 1)
                {
                    Write-Output "Multiple Boot devices found. Please provide a more specific name."
                    break;

                } 
                
                if ($Password) {
                Set-Item -path DellSmbios:\BootSequence\BootSequence -value $_.DeviceNumber -Password $password
                }
                else
                {
                    Set-Item -path DellSmbios:\BootSequence\BootSequence -value $_.DeviceNumber
                }
                
                Write-Output "Updated Bootorder is:"
                Get-Item -path DellSmbios:\BootSequence\BootSequence | select -expand currentvalue
                break;
            }
            
        }

        Write-Output "Boot device $bootdevice is not found."
  }
  END{}

  }


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