[SOLVED] Get the serial number of the hard disk who host windows os

Get the serial number of the hard disk who host windows os

I'm trying to get the serial number of the hard disk who host windows os in a consistant way through python calling windows cmd from subprocess

So far using :

wmic diskdrive get serialnumber,index

Which give me back something like :

Index  SerialNumber
1      000000001536
0      0025_XXXX_2142_XXXX.
2      000000001536

However the first, nor the index 0 is not always the hardrive with the OS... (as mentionned in the answer in Get hard disk serial number from local disk in batch)

Is there a command to get the hard drive serial number of where is installer the Windows OS ?

Thanks,

Solution

Thanks to your suggestions :

For windows > 7, In a powershell with the SystemDrive environnement variable, the serial number of the current used os can be found with :

get-partition -DriveLetter ($Env:SystemDrive).Replace(':','') | get-disk | % {$_.SerialNumber}

For older versions of windows,in cmd.exe, wmic can be used with :

wmic /namespace:\\root\microsoft\windows\storage path msft_disk WHERE "IsSystem='TRUE'" get serialnumber

In python :

import subprocess

def get_serial():
    try:
        cmd = r'wmic /namespace:\\root\microsoft\windows\storage path msft_disk WHERE "IsSystem=\'TRUE\'" get serialnumber'.replace(
            "\\'", "'")
        serial = subprocess.check_output(cmd)


    except:
        cmd = "get-partition -DriveLetter ($Env:SystemDrive).Replace(':','') | get-disk | % {$_.SerialNumber}"
        ouput = subprocess.run(["powershell", "-Command", cmd], capture_output=True)
        serial = ouput.stdout

    return serial

Note that calling a powershell and get-partition is fairly slow...