PowerShell: Copy-Item throws DriveNotFoundException - exception

Question

My script keeps bugging me with the following exception
copy-item : Cannot find drive. A drive with the name 'F' does not exist.
At C:\Program Files (x86)\CA\ARCserve Backup\Templates\RB_Pre_Process.ps1:58 char:1
+ copy-item -Path $drive -Destination $DST_DRIVE -Recurse -ErrorAction Stop
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (F:String) [Copy-Item], DriveNotFoundException
+ FullyQualifiedErrorId : DriveNotFound,Microsoft.PowerShell.Commands.CopyItemCommand
This is what my script looks like. I am mounting an ISO image on drive F: and I have added a "start-slepp -s 5" command so i can verify the image get's mounted, which it does!
$BACKUP_PATH = "E:\00_BACKUP_DATA"
$DR_PATH = "E:\01_DR_DATA"
$ISO_IMAGE = "C:\Program Files (x86)\CA\ARCserve Backup\Templates\Winpe_x64.iso"
$DST_DRIVE = "E:\"
try {
New-EventLog -LogName Application -Source "RB_Pre_Process.ps1" -ErrorAction Stop
} catch [System.InvalidOperationException] {
Write-host $_
}
try {
Write-Host "Preparing RDX cartridge..."
# Query for disk object
$disk_number = (Get-Disk | Where-Object -Property FriendlyName -like "TANDBERG RDX*").Number
# Remove partitions
Get-Disk $disk_number | Clear-Disk -RemoveData -Confirm:$false | Out-Null
# Create new partition
New-Partition -DiskNumber $disk_number -UseMaximumSize | Out-Null
# Format partition
Format-Volume -DriveLetter E -FileSystem NTFS -NewFileSystemLabel "RDX_TAPE" -Confirm:$false | Out-Null
# Set partition as active
Set-Partition -DriveLetter E -IsActive:$true | Out-Null
} catch {
Write-Host $_
Write-EventLog -LogName Application -Source $MyInvocation.MyCommand.Name -EventID 2 -Message $_
}
try {
Write-Host "Creating folder structure..."
new-item -itemtype directory -Path $BACKUP_PATH -ErrorAction stop | Out-Null
new-item -itemtype directory -path $DR_PATH -ErrorAction stop | Out-Null
} catch {
Write-Host $_
Write-EventLog -LogName Application -Source $MyInvocation.MyCommand.Name -EventID 2 -Message $_
}
try {
Write-Host "Mounting ISO image..."
$image = Mount-DiskImage -ImagePath $ISO_IMAGE -PassThru -ErrorAction Stop
} catch [ParameterBindingException] {
Write-Host $_
Write-EventLog -LogName Application -Source $MyInvocation.MyCommand.Name -EventId 2 -Message $_
}
$drive = ($image | Get-Volume).DriveLetter
$drive += ":\*"
Start-Sleep -s 5
try {
Write-Host "Copying ISO content..."
copy-item -Path $drive -Destination $DST_DRIVE -Recurse -ErrorAction Stop
} catch {
Write-Host $_
Write-EventLog -LogName Application -Source $MyInvocation.MyCommand.Name -EventId 2 -Message $_
}
try {
Write-Host "Unmounting ISO image..."
Dismount-DiskImage -ImagePath $ISO_IMAGE -ErrorAction Stop
} catch [System.Exception] {
Write-Host $_
Write-EventLog -LogName Application -Source $MyInvocation.MyCommand.Name -EventId 2 -Message $_
}
So, what's going wrong here? Sometimes it works sometimes not...

Answer 1

I "solved" the issue... my script is working perfectly fine when it's getting started directly from the PowerShell prompt instead of the PowerShell ISE... So the IDE is the culprit.

Answer 2

it seems the mounted image can't be reached in powershell. I think it's a limitation of the provider. A possible workaround is issuing CMD command. You could replace
copy-item -Path $drive -Destination $DST_DRIVE -Recurse -ErrorAction Stop
with
& cmd /C "copy F:\* G:\dest\"
Here I just give an example, you may need to do further work to copy recursively..you could use the xcopy or robocopy which could handle recursive copy.