"Shared folders" saved the day; thanks again! (I'm still trying to wrap my head around all the pieces to VMs; amazing stuff!)

Here's a new question (maybe a little off-topic to this thread, but I'll ask anyway).

Trying to install a second SQL instance onto the SQL-A, SQL-B and SQL-CORE machines, per Chapter-2's exercises:

- When I use the Installation Center GUI for the SQL-A machine, all ran fine.

- When I use an elevated command prompt on SQL-B to run ...

c:\Program Files\Microsoft SQL Server\110\Setup Bootstrap\SQLServer2012>

Setup.exe /qs /Action=Install /Features=SQLEngine /InstanceName=Alternate /SQLSYSADMINACCOUNTS="Contoso\Kim_Akers" /IAcceptSQLServerLicenseTerms

... I get an error message:

"The following error occurred:

The product version cannot be retrieved from mediainfo.xml in '' and Property BaselineVersion.

Error result: -2054422481

Result facility code: 1420

Result error code: 47

Please review the summary.txt log for further details."

(The summary.txt file gives no indication that anything went wrong.)

- Here's what really surprised me: When I use the Installation Center GUI for the SQL-B machine, all ran fine.

- When I use an elevated command prompt to run that same Setup on SQL-CORE, I get the same "Version cannot be retrieved" message.

The XML file itself seems OK:

<?xml version="1.0" encoding="UTF-8"?>

<MediaInfo>

<Properties>

<Property ID="MediaLayout" Value="Full" />

<Property ID="BaseLineVersion" Value="11.0.2100.60" />

</Properties>

</MediaInfo>

I'm under the impression all three VMs are using the same ISO to install the instance. If that's the case, am I missing something really basic here?

TIA, as always, for any insight you can share here!

RC