The Cisco 3415 ACS appliances came pre-loaded with 5.8 and I need to re-image to 5.4. Looking at the documentation below it looks like the two main options involve CIMC or installing from USB. Can I enable CIMC from serial console port connection? Or is KVM access required?
The devices are at a distant location and the less need for remote hands the easier it all is.
Or is there a means to entirely downgrade the device via the management GUI, console or SSH connection that does not require CIMC?