The WinOps Blog

You are in WinPE....

Windows partition is not always C:, because if you do a refresh with a winre partition, winpe will assign C: to this partition but windows is not there.
So you have to determine, always, where is C:
Yes, it could be "#disk 0 #partition 2", but you could be in an architecture with data on a second partition => Résult: 3 partitions....
So, i give you a script to always find windows partition by reading bcdedit (thank you William for this idea) an dso always find windows:
copy/past it to a vbscript.vbs and run, it will create for you in your TS a variable OSDRIVE, like OSDRIVE="C:"

scriptfolder=left(WScript.ScriptFullName,len(WScript.ScriptFullName)-len(WScript.ScriptName)-1)

sCmd = "%comspec% /c bcdedit /v /enum all"
set iRetVal = oShell.Exec(sCmd)
oCheck = iRetVal.StdOut.ReadAll

Set ProgressUI = CreateObject("Microsoft.SMS.TsProgressUI")
ProgressUI.CloseProgressDialog

Set objFSO = CreateObject("Scripting.FileSystemObject")
For Each Line In Split(oCheck,vbCrLf)
if trim(Line)="" _
or ubound(split(Line,"-------------------")) < 1 then
else
    For Each Blocks In Split(oCheck,"-------------------")
        If instr(Blocks,"Windows 7")>0 then
            If instr(Blocks,"Winre.wim")>0 then
            else
            demiblock = Split(Blocks,"partition=")(1)
            OSDRIVE = left(demiblock,2)
            oEnvTS("OSDRIVE") = OSDRIVE
            end if
        end if
    Next
end if
Next

Now if you want to know what is your winre partition, if it is hide. and if you define it to 1Go or "1000 M".
copy/past it to a vbscript.vbs and run, it will create for you in your TS a variable BDEPARTITION, like BDEPARTITION="partition 2"
Do it:

scriptfolder=left(WScript.ScriptFullName,len(WScript.ScriptFullName)-len(WScript.ScriptName)-1)

check_maintenancefile()

sCmd = "%comspec% /c diskpart /s " & scriptfolder & "\check_maintenance.txt"
set iRetVal = oShell.Exec(sCmd)
oCheck = iRetVal.StdOut.ReadAll

Set ProgressUI = CreateObject("Microsoft.SMS.TsProgressUI")
ProgressUI.CloseProgressDialog

    For Each Line In Split(oCheck,vbCrLf)
        if trim(Line)="" _
        or ubound(split(Line,"Partition")) < 1 then
        else
            If instr(Line,"1000 M")>0 then
            oEnvTS("BDEPARTITION")=trim(mid(Line,3,11))
            end if
        end if
    Next

sub check_maintenancefile()
dim objFSO,objTextFile

Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objTextFile = objFSO.OpenTextFile(scriptfolder & "\check_maintenance.txt", ForWriting, True)
        objTextFile.WriteLine("Select Disk 0")
        objTextFile.WriteLine("Detail Disk")
        objTextFile.Close
end sub