xubuntu moved to universe, ltsp builds the client by default from main packages only. you need to use the --components option with main,restricted,universe as parameters for that, someone in the xubuntu community should document that change.
xubuntu moved to universe, ltsp builds the client by default from main packages only. you need to use the --components option with main,restricted ,universe as parameters for that, someone in the xubuntu community should document that change.