Juniper Networks J-Series manual Installing Software Upgrades with the CLI

J-series™ Services Router Administration Guide

Installing Software Upgrades with the CLI

To install software upgrades on a router with the CLI:

1.If your router has 256 MB of flash memory and 256 MB of RAM, see the special instructions in the J-series Services Router Release Notes.

2.Download the software package as described in “Downloading Software Upgrades from Juniper Networks” on page 181.

3.If you are installing the software package from a local directory on the router, copy the JUNOS software package to the router. We recommend that you copy it to the /var/tmp directory.

4.Install the new package on the Services Router, entering the following command in operational mode in the CLI:

user@host> request system software add unlink no-copy source

Replace source with one of the following paths:

■For a software package that is installed from a local directory on the router, use /pathname/package-name(for example,

/var/tmp/junos-j-series8.5R2.1.tar.gz)

■For software packages that are downloaded and installed from a remote location, use one of the following paths:

■ftp://hostname/pathname/package-name or

■http://hostname/pathname/package-name

By default, the request system software add command uses the validate option to validate the software package against the current configuration as a prerequisite to adding the software package. This validation ensures that the router can reboot successfully after the software package is installed. This is the default behavior when you are adding a software package.

The unlink option removes the package at the earliest opportunity so that the router has enough room to complete the installation.

(Optional) The no-copyoption specifies that a software package is installed, but a copy of the package is not saved. Include this option if you do not have enough space on the compact flash to perform an upgrade that keeps a copy of the package on the router.

5.After the software package is installed, reboot the router: user@host> request system reboot

When the reboot is complete, the router displays the login prompt.

184■ Installing Software Upgrades with the CLI