R3166-R3206-HP High-End Firewalls System Management and Maintenance Configuration Guide-6PW101

Software upgrade configuration

Software upgrade overview

Software upgrade allows you to obtain a target system software image from the current host and set the

file as the main or backup system software image to be used at the next reboot.

A system software image is an application file used to boot the device. A main system software image

is used to boot a device and a backup image file is used to boot a device only when the main image file

is unavailable.

Device software overview

Device software comprises the Boot ROM and the system software images. After powered on, the device

runs the Boot ROM image, initializes the hardware, and displays the hardware information. Then the

device runs the system software image, which provides drivers and adaption for hardware, and

implements service features. The Boot ROM and system software images are required for the startup and

running of a device. Figure 10 illu

strates their relationship.

Figure 10 Relationship between the Boot ROM and the system software images

Start

Boot ROM runs

Press Ctrl+B

Run system

software image

Enter Boot menu to

upgrade Boot ROM or

system software

Yes

Select the

Reboot option to

reboot the device

Enter CLI

Finish