Upgrade or Reimage Firepower 8300 Sensors
Recently I was tasked with upgrading some new Firepower 3D8350 sensors which would later be stacked into a 3D8360. These devices were shipped with software version 5.4.0.1 and I had a customer requirement to upgrade the sensors to version 6.2. I would normally stack these devices and upgrade them using the FMC, however, I didn’t have this luxury with these new devices so each sensor had to be upgraded one by one. I had two ways in which I could perform the software upgrades, either upgrade each device following the upgrade path (the longest way) or system restore each device to version 6.2 (the fastest way). Just to give you an idea of the upgrade path from 5.4.0.1 I have included it below; Version 5.4.0.2 > Version 6.0.0 PreInstallation Package > Version 6.0.0 > Version 6.0.1 Preinstall > Version 6.0.1 > Version 6.1.0 PreInstallation Package > Version 6.1.0 > Version 6.2.0 As you can imagine this particular upgrade path will require some time and it’s also worth m