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Preinstall and Postinstall doing the same thing RRS feed

  • Question

  • Greetings,

      In a task sequence I have inherited, the following tasks occur at both Preinstall and Postinstall phase:

    • Copy scripts
    • Configure
    • Inject drivers
    • Apply Packages

    Why do these need to be done twice? Surely they only need to be done Preinstall?

    Thanks

    David Z

    Tuesday, June 11, 2013 9:33 PM

Answers

  • They are needed in both their default respective places.  This is because some of those functions are required while the device is in WinPE to interact with the hardware and then again after the WIM is applied so they can update the offline image before it gets rebooted and WinPE exits.

    David Coulter | http://DCtheGeek.blogspot.com | @DCtheGeek

    • Marked as answer by David Zemdegs Tuesday, June 11, 2013 11:40 PM
    Tuesday, June 11, 2013 10:44 PM
    Answerer

All replies

  • They are needed in both their default respective places.  This is because some of those functions are required while the device is in WinPE to interact with the hardware and then again after the WIM is applied so they can update the offline image before it gets rebooted and WinPE exits.

    David Coulter | http://DCtheGeek.blogspot.com | @DCtheGeek

    • Marked as answer by David Zemdegs Tuesday, June 11, 2013 11:40 PM
    Tuesday, June 11, 2013 10:44 PM
    Answerer
  • Hi,

      I just noticed that in the standard server task sequence for mdt 2012, the preinstall inject drivers task allows you to select a selection profile, yet the inject drivers task in the postinstall does not. Where does the latter inject drivers get its drivers from?

    Thanks

    David Z

    Thursday, June 20, 2013 3:32 AM
  • That's actually true in the Client Task Sequence, also.  It gets the drivers from the same place, just does a few other steps in the way it's called.  Most people add one or more additional Driver steps based on either the specific profile they want or using Driver Management with DriverGroup references.

    David Coulter | http://DCtheGeek.blogspot.com | @DCtheGeek

    Thursday, June 20, 2013 2:48 PM
    Answerer