Fortigate HA cluster FortiOS upgrade in pictures

I already wrote tips for upgrading your Fortigate HA cluster https://yurisk.info/2023/06/18/tips-on-upgrading-fortigate-in-ha-cluster/ , but didn’t include screenshots of the upgrade to illustrate what actually happens. Today I fix that - below are screenshots of the cluster upgrade I did, with description. It will be helpful to those doing their 1st cluster upgrade, to know what to expect.

This cluster has just 2 members, one Active - FGT-1-1, and the Passive - FGT-1-2. The screenshots were made from the console.

The upgrade starts when I upload the new FortiOS image to the Active member, or click on "Upgrade" in GUI to download the image from the Fortiguard servers. In both cases Fortigate automatically downloads back up of the configuration to the local PC if you don’t decline it (don’t).

Console of the Active member FGT-1-1:

Console of the Passive member FGT-1-2:

I also write cheat sheets/scripts/guides to help in daily work, so make sure to check out my Github at https://github.com/yuriskinfo and https://www.linkedin.com/in/yurislobodyanyuk/