How to Upgrade Junos OS

In this video, Knox Hutchinson covers upgrading the Junos operating system on your Juniper device. Even if you don't have them on the most recent release, it's important that your Juniper devices all run on the same Junos build. In this video, Knox explains:

Checking the version your device is currently operating on

Comparing the build number to Juniper's available builds

The steps for downloading and installing the image directly to the device via url

What to do if your device is so old that it doesn't support TLS or you don't want to directly install the update

Compare build numbers to see if you want to upgrade your device. You can then download the .tgz file and install it locally via flash drive, or you can download the image directly to your device via url.

To do that, check that your device can actually access the internet, then make sure your DNS settings are correct. With that, you can instruct the device on where to find the new OS image and where to load it.

You might run into problems — like Knox does — if your device doesn't support TLS. Old Juniper devices will revert to grabbing data from sites using straight SSL, but new websites won't support it. The workaround is local installation.

Start learning with CBT Nuggets:

[MrDesillu]

First get the firmware, but you can't as an hobbyist, because juniper choose to put them behind a paywall, thanks for security?

[RbNetEngr]

Good basic instructions. However, shouldn’t you back up your current configuration before the upgrade, in case something goes wrong?

[nadimpathan]

quite helpful, thanks for this video.

[Simpingcats]

Hello! I ran into an issue where we have to upgrade to 15.1R7.9 and I'm on 15.1R5.5.

When I upgrade to R6 it refuses to load my config file. Says identical address found on multiple interfaces.

We only use one ip. The config file worked fine for all previous versions. Very confused here

[gastonhitw]

hi I wanna buy a ex3200 for home use, I'l buy a refurbished switch but I'm scared because I dunno if this switch comes with preinstalled software and a license, if not, where can I get it? I won't be able to pay to juniper directly just to use the switch because I don't know how expensive it is, I also would like to know how the license activation works, I wanna use this switch mainly for layer 2

[jmanzo]

How did you get approved to get access to Junos downloads? Need firmware for a ex3300 switch :(

[psiwela]

PLease help me with terrasync or terrafle. my juno 3d does not work, no software

[ryansyed]

Please edit the video title to "How to Upgrade Junos OS online", I need to know how to upgrade JUNOS offline, I am sick of wrong titles
how did you connect your switch online and able to ping Google DNS?

[RebrandSoon]

Is there a simulator of these network devices?