Sunday 1 March 2020

Quick Start: Upgrading Juniper SRX Devices

Once you've obtained the relevant firmware from Juniper you can either download it via https:

file copy /tmp XX.tgz

or alternatively if you need to download it from a named routing instance you'll need to download it over ftp firstly:

ftp routing-instance <instance-name> <ftp-host>

start shell
md5 /tmp/<firmware>.tgz

request system software add validate /tmp/<firmware>.tgz

The system will then extract the firmware and reboot immediately.

To verify the Junos firmware version after reload issue:

show version


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