Juniper Networks 5000 SERIES Manuale Utente

Chapter 3 Configuring the Device

26

User’s Guide

Upgrading the Firmware During the Boot Process

1.

Connect your computer to the NetScreen-5000 Series device:

a.

Using a serial cable, connect the serial port on your computer to the 
console port on the NetScreen-5000 Series device. This connection, in 
combination with a terminal application, enables you to manage the 
NetScreen device.

b.

Using an Ethernet cable, connect the network port on your computer to 
the management port on the NetScreen-5000 Series device. This 
connection enables the transfer of data between the computer, the TFTP 
server, and the NetScreen device.

2.

Make sure that you have the new ScreenOS image file stored in the TFTP server 
directory on your computer. For information on obtaining the new firmware, see 
the NetScreen Concepts & Examples Reference Guide.

3.

Run the TFTP server on your computer by double-clicking on the TFTP server 
application. You can minimize its window but it must be active in the 
background.

4.

Log in to the NetScreen-5000 Series device using a terminal emulator such as 
HyperTerminal. See 

. Log in as the root admin or an admin with read-write privileges. 

5.

Power on or restart the NetScreen-5000 Series device.

6.

Keep your eyes on the terminal emulator screen, then when you see “Hit any key 
to run loader”, press any key on your computer keyboard to interrupt the 
startup.

7.

At the Boot File Name prompt, enter the file name of the ScreenOS firmware 
you want to load.

8.

At the Self IP Address prompt, enter the IP address of the NetScreen-5000 
Series device that is used to communicate to the TFTP server.

9.

At the TFTP IP Address prompt, enter the IP address of the TFTP server.

An indication that the firmware is loading successfully is the display of the 
series of “rtatatatatata...” running on the terminal emulator screen and a series 
of symbols running on the TFTP server window. When the firmware installation 
is complete, a message informs you of the success of the installation.

10. Answer Yes to the following question: “Program to on-board flash” ([y]/n)”

Answering “yes” saves the firmware you installed to flash memory.

11. Answer Yes to the following question: “Run downloaded program? ([y]/n)”

Answering “yes” instructs the NetScreen-5000 Series device to start running the 
new ScreenOS firmware.