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.
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-copy option 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.