Inalp Networks SmartWare Release 2.10, Руководство по настройке программного обеспечения

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56 System Image Handling
8 SYSTEM IMAGE HANDLING
This chapter describes how to load and maintain system images and driver software. System images
contain the application image and driver software images. The application image represents the
software running SmartWare, which has to be stored in the persistent region of the memory. Driver
software images contain software that also has to be stored in the persistent region of the memory
and are used for optional PMC interface cards. Refer to Chapter 3, “Administrator Execution Mode”,
in the SmartWare
Command Reference Guide for a complete description of the commands related to
this chapter.
This chapter includes the following sections:
• Introduction
•
Memory Regions in SmartWare
•
Boot Procedure and Bootloader
•
Factory Configuration
• Warnings
• System Image Handling Task List
8.1 Introduction
All Inalp Networks AG SmartNode devices are shipped with a default system image, which is stored
in the persistent flash memory of the SmartNode at the Inalp Networks AG factory. The system
image contains the application image and driver software images that together build SmartWare. In
addition a factory configuration is loaded to the SmartNode at the Inalp Networks AG factory, which
initially parameterizes SmartWare. Therefore the user is neither has to load a system image not the
factory configuration to the SmartNode prior using it.
Your own operational configuration files are stored in the SmartNode flash memory, and copies may
also be stored on a remote server. Transferring configuration files between the flash memory and a
remote server requires the use of the Trivial File Transfer Protocol (TFTP). The TFTP server must be
accessible through one of the SmartNode IP interfaces. TFTP is not possible over the console
interface.
In the following sections the focus is on SmartWare memory regions and the software components
that can be copied within the memory or moved between a TFTP server and the memory of the
SmartNode. Since SmartWare uses a specific vocabulary in naming those software components, refer
back to Chapter 1, “Terms and Definitions”, to ensure that you understand the concepts.
8.2 Memory Regions in SmartWare
The SmartNode memory used by SmartWare is divided into several regions as shown in Figure 8-1
below. A remote TFTP server is used for up- or downloading configurations, application and driver
software images to or from the SmartNode’s memory. In the SmartWare command syntax, the file
path of a file on the TFTP server that is used for image up- or download is prefixed with
tftp:
followed by the absolute file path starting from the root directory of the TFTP server.
The flash memory stores data contained in it persistently and is made up of two logical regions
called
flash: and nvram: , which are used as follows:
• The application image, a bootloader image and one or more driver software images have to
be stored in the logical region
flash: of flash memory.
• Configuration files have to be stored in the logical region nvram: of the flash memory. The
factory default configuration is always loaded, and may be restored by pressing the
Software Configuration Guide Release 2.10, Revision 1.00