Juniper Networks J-Series manual Downloading Software Upgrades from Juniper Networks

Chapter 10: Performing Software Upgrades and Reboots

■512 MB

■1024 MB

Compact flash cards with 128 MB storage capacity are not supported.

A sample J-series recovery software package name is junos-jseries-9.0R1-export-cf256.gz.

Before You Begin

To download software upgrades, you must have a Juniper Networks Web account and a valid support contract. To obtain an account, complete the registration form at the Juniper Networks Web site: https://www.juniper.net/registration/Register.jsp.

Before an upgrade, back up your primary boot device onto a secondary storage device. If you have a power failure during an upgrade, the primary boot device can fail or become corrupted. In either case, if a backup device is not available, the router is unable to boot and come back online. Creating a backup also stores your active configuration files and log files and ensures that you recover to a known, stable environment in case of an unsuccessful upgrade.

During a successful upgrade, the upgrade package completely reinstalls the existing software. It retains configuration files, log files, and similar information from the previous version.

Use either the J-Web interface or the CLI to back up the primary boot device on one of the secondary storage devices listed in Table 94 on page 181.

Table 94: Secondary Storage Devices for Backup

Storage Device	Available on Routers	Minimum Storage Required
External compact flash	J4300 and J6300	256 MB
USB storage device	All Services Routers	256 MB

After a successful upgrade, remember to back up the new current configuration to the secondary device.

For instructions about how to back up your system using the J-Web Interface, see “Configuring a Boot Device for Backup with the J-Web Interface” on page 186. For instructions about how to back up your system using the CLI, see “Configuring a Boot Device for Backup with the CLI” on page 189.

Downloading Software Upgrades from Juniper Networks

Follow these steps to download software upgrades from Juniper Networks:

Before You Begin ■ 181