downgrade Cisco ASA IOS

[LionKin1984]

Hello folks

I am looking to downgrade software on our Cisco ASA 5512-x firewall from 9.12 to 9.11 (dont ask me why, I was told to do so), is there any precedures doing so?

would the running-config currently on the firewall be affected by the downgrade (or upgrade)?

Thanks

[Marvin Rhoads]

As long as you aren't using any of the new features specific to ASA 9.1(2), downgrading to 9.1(1) would not affect the running-config.

Simply copy the new image onto disk0: and change the boot system variable to reference it. Save and reload.

[CiscoSecurity1]

Thanks Marvin, I will give it a whirl tomorrow