Juniper JUNOS OS 10.3 - SOFTWARE, Manual

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Installing Software on the Backup Routing Engine
Once the EX8200 switch is ready, you first install the software on the backup Routing
Engine. This enables the master Routing Engine to continue operations, minimizing the
disruption to your network.
1.
Download the software by following the procedures in “Downloading Software
Packages from Juniper Networks” on page 77.
2.
Copy the software package to the switch. We recommend that you use FTP to copy
the file to the
/var/tmp
directory.
3.
Log in to the backup Routing Engine’s console.
4.
Install the new software package:
user@switch> request system software add validate
/var/tmp/package-name-m.nZx-distribution.tgz
where package-name-m.nZx-distribution .tgz is, for example,
jinstall-ex-8200–9.5R1.5–domestic-signed.tgz
.
For more information on the
request system software add
command, see the Junos
OS System Basics and Services Command Reference at
http://www.juniper.net/techpubs/software/junos/index.html .
NOTE: To abort the installation, do not reboot your device; instead, finish
the installation and then issue the request system software delete
package-name-m.nZx-distribution.tgz command, where
package-name-m.nZx-distribution.tgz is, for example,
jinstall-ex-4200–9.4R1.5–domestic-signed.tgz . This is your last chance
to stop the installation.
5.
Reboot to start the new software:
user@switch> request system reboot
Reboot the system? [yes, no] (no) yes
NOTE: You must reboot the switch to load the new installation of the
Junos OS.
6.
After the reboot has completed, log in and verify the new version of the software is
properly installed:
user@switch> show version
81 Copyright © 2010, Juniper Networks, Inc.
Chapter 5: Installing Junos OS