[arm-allstar] Help with finding location of Static IP (V4) address.

[am_fm_radio at yahoo.com]

My Club has an ALLSTAR  node on K-link (Kansas Link Statewide Network for Skywarn) It was set up abut 10 years ago and operates flawlessly. The Root password is unknown and it's permanently linked.. plays and plays.
The site that hosts the repeater, had their router go down and has a contract with some business service. It was replaced and all IP's changed . Since we had a static IP address, we cannot talk with the router..It would be a simple change of the IP address from 192.168.1.40  to 192.168.0.40...as we did that with another repeater at the same site. 

I can read the SD card on my linux machine.. I cannot log in root. I've tried the CTRL-ALT-F9 on boot  up and It takes me into CLI> prompt, which runs without logging in. But you can't exit to the main allstar menu..
I Just need to know where the IP address is kept, or the password.. I could copy or edit either. The rest of the SD card was configured before my time and auto connects to K-link permanently.
Advise 
Larry W8LM