Upgrade Overview; Before You Begin; Downloading Software Upgrades From Juniper Networks - Juniper J2300 User Manual

J-series™ Services Router User Guide

Upgrade Overview

The Services Router is delivered with the JUNOS Internet software preinstalled. To
upgrade the software, you use the J-Web interface or CLI commands to copy a set of
software images over the network to memory storage on the Routing Engine.
All
Hash Algorithm 1 (SHA-1) checksums. A package is installed only if
the SHA-1 checksum within it matches the SHA-1 hash recorded in its
corresponding
-export.tgz.sha1
the SHA-1 hashes match in the two
The
rebuilds the file system but retains configuration files, log files, and
similar information from the previous version.

Before You Begin

To download software upgrades, you must have a Web account with Juniper
Networks. To obtain an account, complete the registration form at the Juniper
Networks Web site:
Before upgrading, be sure to back up the currently running and active file system
and configuration so that you can recover to a known, stable environment in
case the upgrade is unsuccessful. To back up the file system, you must have
a removable compact flash drive installed on the J4300 or J6300 Services
Router, or a USB drive installed on any J-series Services Router.
To back up the file system to the removable compact flash drive,
issue the following command:
user@host> request system snapshot media removable-compact-flash
To back up the file system to the removable USB drive, issue the following command:
user@host> request system snapshot media usb
For details about the
Boot Devices with the CLI" on page 508.

Downloading Software Upgrades from Juniper Networks

Follow these steps to download software upgrades from Juniper Networks:
1.
502
Downloading Software Upgrades from Juniper Networks
software is delivered in signed packages that contain Secure
junos-jseries
file. (For example,
.sha1
. The
junos-jseries- release -export.tgz
package completely reinstalls the software. This package
junos-jseries
https://www.juniper.net/registration/Register.jsp
request system snapshot
Using a Web browser, follow the links to the download URL on the Juniper
Networks Web page. Choose either Canada and U.S. Version or Worldwide
Version:
https://www.juniper.net/support/csc/swdist-domestic/
contains
-export.tgz -export.tgz
package is installed only if
files.)
-export.tgz.sha1
command, see "Configuring
and
.