What steps take place during an upgrade process? 

The new software image will be loaded into the Backup partition; a reboot will be necessary to have the Steelhead appliance switch to the newer software 

The new software image will be loaded into the Booted partition; a reboot will be necessary to have the Steelhead appliance switch to the newer software 

The new software image will be loaded into the Backup partition; a restart will be necessary to have the Steelhead appliance switch to the newer software 

The new software image will be loaded into the Booted partition; a restart will be necessary to have the Steelhead appliance switch to the newer software 

The new software image will be loaded into the Backup partition; a configuration save will be necessary to have the Steelhead appliance switch to the newer software