Geek Answers Handbook

GPT and MBR Partition Detection with Powershell

Is there a way to determine if a GPT disk or MBR partition has powershell?

+4
source share
4 answers

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 "*"}}
+6
source

If you are on Windows 8, Windows Server 2012 or later, you can use one of the storage cmdlets to verify this:

 Get-Disk

The result of this command will be formatted as follows:

 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

Note that the rightmost column indicates the style of the section that is part of the data you are looking for.

If you are in Windows 7, Windows Server 2008 R2 or later, you must use diskpart or WMI to get this information. I prefer to use diskpart. A type

 diskpart

followed by

 list disk

The result will look like this:

 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 drives 0 and 1 are GPT drives, and they have an asterisk in the corresponding column.

+6
source

Not. For this, PowerShell has no built-in built-in commands. PowerShell, as the name implies, is a shell. It comes with a good set of useful general cmdlets, but such specialization is provided to external commands (e.g. diskpart), modules, and / or snapins.

Since you will always find diskpart.exe, where you will find powershell, use this.

If you intend to use only PowerShell, perhaps WMI can help. Take a look at the output:

PS> gwmi win32_partition | % { $_ | fl * }

-Oisin

0
source

To find out if any drive has an MBR or GPT is very simple. Launch powershell. Run .. diskpart, press ENTER, run .., press ENTER. Here is my output to the computer:

 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 type of the partition table is Gpt respectively. I have been looking for some time and enough for my purposes. To compare the output of a script using Josh using WMI, here is the output.

 DiskIndex GPT --------- --- 0 False 1 False 2 False
0
source

More articles:


All Articles