How to boot (!) into an old config without gui access !?

When trying to optimize the network settings, I lost access to the system.

Just for info I did change the trunk msu from 9000 to 9014 and I could not access the system since. Do not think so, but it could be an network issue as well. (my idea was that an source msu needs a somewhat bigger transport msu)

What ever I am looking for a way to restore the previous config, without reinstalling the system.

In pfSense there is an option to add an usb with the config and just reboot. But I am not aware of an option like that for TrueNas. Could not find a console option for that as well :frowning:

So I hope that that kind of option exists.

Just reset the network via console and then restore your old config?