我正在寻找一种方法来可靠地检测我何时启动到WinPE 4(power
shell)(或WinPE 3(vbs)作为替代),我是从UEFI或B
IOS系统启动的吗？ (因为我在受限制的环境中没有运行第三方exe)
这会显着改变我在分区布局更改和格式时对Windows部署进行分区的方式. (GPT与MBR等)
我有一个工作,它是在PowerShell v3中修改this C++代码,但它感觉非常hack-ish：
## Check if we can get a dummy flag from the UEFI via the Kernel
## [Bool] check the result of the kernel's fetch of the dummy GUID from UEFI
## The only way I found to do it was using the C++ compiler in powershell
Function Compile-UEFIDectectionClass{
$win32UEFICode= @'
using System;
using System.Runtime.InteropServices;
public class UEFI
{
[DllImport("kernel32.dll")]
public static extern UInt32 GetFirmwareEnvironmentVariableA([MarshalAs(UnmanagedType.LPWStr)] string lpName,[MarshalAs(UnmanagedType.LPWStr)] string lpGuid,IntPtr pBuffer,UInt32 nSize);
public static UInt32 Detect()
{
return GetFirmwareEnvironmentVariableA("","{00000000-0000-0000-0000-000000000000}",IntPtr.Zero,0);
}
}
'@
Add-Type $win32UEFICode
}
## A Function added just to check if the assembly for
## UEFI is loaded as is the name of the class above in C++.
Function Check-IsUEFIClassLoaded{
return ([System.AppDomain]::CurrentDomain.GetAssemblies() | % { $_.GetTypes()} | ? {$_.FullName -eq "UEFI"}).Count
}
## Just incase someone was to call my code without running the Compiled code run first
If (!(Check-IsUEFIClassLoaded)){
Compile-UEFIDectectionClass
}
## The meat of the checking.
## Returns 0 or 1 ([BOOL] if UEFI or not)
Function Get-UEFI{
return [UEFI]::Detect()
}
为了得到一个简单的旗帜,这似乎相当于顶部.
有谁知道是否有更好的方法来完成这项工作？
