问题
Is there a way to tell if a disk has a GPT or an MBR partition with powershell?
回答1:
Using WMI
gwmi -query "Select * from Win32_DiskPartition WHERE Index = 0" | Select-Object DiskIndex, @{Name="GPT";Expression={$_.Type.StartsWith("GPT")}}
Using Diskpart
$a = "list disk" | diskpart
$m = [String]::Join("`n", $a) | Select-String -Pattern "Disk (\d+).{43}(.)" -AllMatches
$m.Matches | Select-Object @{Name="DiskIndex";Expression={$_.Groups[1].Value}}, @{Name="GPT";Expression={$_.Groups[2].Value -eq "*"}}
回答2:
If you are on Windows 8, Windows Server 2012, or newer, then you can use one of the storage cmdlets to check this:
Get-Disk
The output of this command will be formatted like:
PS C:\> Get-Disk
Number Friendly Name OperationalStatus Total Size Partition Style
------ ------------- ----------------- ---------- ---------------
0 Microsoft Virtual Disk Online 42 GB GPT
1 Microsoft Virtual Disk Online 1 GB GPT
2 Microsoft Virtual Disk Offline 2 GB RAW
3 Microsoft Virtual Disk Offline 3 GB RAW
Notice that the rightmost column indicates the Partition Style, which is the piece of data that you are seeking.
If you are on Windows 7, Windows Server 2008 R2, or older, then you should use diskpart or WMI to get this information. I prefer to use diskpart. Type
diskpart
followed by
list disk
The output will look like:
PS C:\> diskpart
Microsoft DiskPart version 6.3.9600
Copyright (C) 1999-2013 Microsoft Corporation.
On computer: WIN-BN8G3VMNQ9T
DISKPART> list disk
Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 42 GB 0 B *
Disk 1 Online 1024 MB 991 MB *
Disk 2 Offline 2048 MB 2048 MB
Disk 3 Offline 3072 MB 3072 MB
Note that Disk 0 and 1 are both GPT disks, and they have an asterisk in the appropriate column.
回答3:
To find out if any disk has a MBR or a GPT this is very easy.. Start powershell. Run.. diskpart , press ENTER, run.. list disk , press ENTER. Here is my computer's output:
Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 232 GB 1024 KB
Disk 1 Online 465 GB 1024 KB
Disk 2 Online 3820 MB 0 B
You will get a yes entry, I think!, for Dyn or Gpt if your disk is dynamic or the partition table type is Gpt respectively. I searched for some time and enough is enough for my purposes. To compare the output of the script by Josh using WMI, here is the output..
DiskIndex GPT
--------- ---
0 False
1 False
2 False
回答4:
No. PowerShell does not have any native built-in commands for this. PowerShell, as the name suggests, is a shell. It comes with a good set of useful, generic cmdlets but specialization like this is left to external native commands (like diskpart), modules and/or snapins.
Since you're always going to find diskpart.exe where you find powershell, use that.
If you're intent on using PowerShell alone, then perhaps WMI could help. Take a look at the output of:
PS> gwmi win32_partition | % { $_ | fl * }
-Oisin
来源:https://stackoverflow.com/questions/3840870/detect-gpt-and-mbr-partitions-with-powershell