Backing Up the Current Installation (J Series Routers and SRX Services Gateway)
You should back up the current installation so that you can return to the current software installation. In a dual Routing Engine system, you need to back up both Routing Engines.
The installation process using the installation package (junos-jsr*) removes all stored files on the router except the juniper.conf and SSH files. Therefore, you should back up your current configuration in case you need to return to the current software installation after running the installation program.
For information on backing up SRX Services Gateway, see the Performing Software Upgrades and Reboots section in the Junos Administration Guide.
The following instructions offer the minimum steps required to create a backup on a J Series router during the installation process. For a complete description of the backup process on the J Series routers, see the J Series Services Router Administration Guide and the Junos OS Systems Basics Configuration Guide.
To back up the Junos OS on the J Series routers:
- Attach an external memory device to the router.
Note: Even when attached to a J Series router, the USB memory device is not listed as a storage device in the show system storage CLI command output. You can view the installed USB memory device on the J-Web interface’s system monitor screen.
- Issue the request system snapshot media usb command.
The current software installation and configuration are saved on the external USB storage device.
