system update should be run unatteded

Binary package hint: update-manager

Note: This is an enhancement request!

I performed an update to 9.04 beta

I would like to see the option in update-manager to run unatteded since downloading and configuring takes a lot of time. The best would be to run this process during night time or absence.

During configuration of upgraded packages, the update-manager asks to keep or replace changed system wide settings. If the user doesn't select a choice the installation stops.

I would suggest to
* add a option "Perform unattended upgrade" to the update-manager with the following characteristics
 * perform upgrade with default options not showing any warnings like for packages which are no more maintained etc.
 * upgrade all new packages by installing the new system wide configuration options
 * backup all configuration options changed by the user
 * save all warnings like for packages which are no more maintained etc.
* when the upgrade has finished, the computer shall shut down
* at the first log-in after the upgrade, open a wizard program that
 * shows all saved warnings like for packages which are no more maintained etc.
 * offer the user to reconfigure the wide configuration options or re-install his changes

=> this could reduce the time a user effectively spends for an upgrade by leaving the system unattended
=> this could reduce the energy because the computer will automatically shut down when the process is finished.

Thanks for looking into this!