private/Install-BiosUpdate.ps1
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function Install-BiosUpdate { [CmdletBinding()] Param ( [ValidateScript({ Test-Path -LiteralPath $_ -PathType Container })] [System.IO.DirectoryInfo]$PackageDirectory ) $BitLockerOSDrive = Get-BitLockerVolume -MountPoint $env:SystemDrive -ErrorAction SilentlyContinue | Where-Object { $_.ProtectionStatus -eq 'On' } if ($BitLockerOSDrive) { Write-Verbose "Operating System drive is BitLocker-encrypted, suspending protection for BIOS update. BitLocker will automatically resume after the next bootup.`r`n" $null = $BitLockerOSDrive | Suspend-BitLocker } if (Test-Path -LiteralPath "$PackageDirectory\winuptp.exe" -PathType Leaf) { Write-Verbose "This is a ThinkPad-style BIOS update`r`n" if (Test-Path -LiteralPath "$PackageDirectory\winuptp.log" -PathType Leaf) { Remove-Item -LiteralPath "$PackageDirectory\winuptp.log" -Force } $installProcess = Invoke-PackageCommand -Path $PackageDirectory -Command 'winuptp.exe -s' if ($installProcess) { return [BiosUpdateInfo]@{ 'Timestamp' = [datetime]::Now.ToFileTime() 'ExitCode' = $installProcess.ExitCode 'LogMessage' = if ($Log = Get-Content -LiteralPath "$PackageDirectory\winuptp.log" -Raw -ErrorAction SilentlyContinue) { $Log.Trim() } else { [String]::Empty } 'ActionNeeded' = 'REBOOT' } } } elseif ((Test-Path -LiteralPath "$PackageDirectory\Flash.cmd" -PathType Leaf) -and (Test-Path -LiteralPath "$PackageDirectory\wflash2.exe" -PathType Leaf)) { Write-Verbose "This is a ThinkCentre-style BIOS update`r`n" # Get a random non-existant directory name to copy wflash2 to as a safe testbed do { [string]$wflashTestPath = Join-Path -Path "$PackageDirectory" -ChildPath ( [System.IO.Path]::GetRandomFileName() ) } until ( -not [System.IO.Directory]::Exists($wflashTestPath) ) $null = New-Item -Path "$wflashTestPath" -ItemType Directory Copy-Item -LiteralPath "$PackageDirectory\wflash2.exe" -Destination "$wflashTestPath" [bool]$SCCMParameterIsSupported = Test-Wflash2ForSCCMParameter -PathToWFLASH2EXE "$wflashTestPath\wflash2.exe" Remove-Item -LiteralPath "$wflashTestPath" -Recurse -Force if ($SCCMParameterIsSupported) { $installProcess = Invoke-PackageCommand -Path $PackageDirectory -Command 'Flash.cmd /ign /sccm /quiet' # Handle the case where $installProcess is NULL because the process never started if ($installProcess) { return [BiosUpdateInfo]@{ 'Timestamp' = [datetime]::Now.ToFileTime() 'ExitCode' = $installProcess.ExitCode 'LogMessage' = $installProcess.StandardOutput 'ActionNeeded' = 'SHUTDOWN' } } } else { Write-Warning "This BIOS-Update uses an older version of wflash2.exe that cannot be installed without forcing a reboot - skipping!" } } } |