I'm not sure why I haven't run into this issue with our other payloads, but I was going to add the crontab command to auto-record the video in 10 minute chunks (we had forgotten that when updating initially) by plugging in a keyboard and monitor into the Pi. Usually (even with the Pis set to automatically record on boot), this brings up a bash login, and I can navigate the file system. However, this time, after the boot sequence, I am greeted by a steady stream of "decoding" and "buffering" messages in a loop. With some uninformed googling I was able to learn that this is likely the video streaming process on the pi, but I cannot do anything to exit out and access bash.
Iv'e tried CTRL+C and CTRL+X and ESC and CTRL+ALT+F2 and "exit" or "shutdown"
How can I get to the filesystem?
UPDATE: Looks like this only happens on 1 of my 4 video payloads, and it's possible that it hadn't been updated to the newest image (the one for ffmpeg streaming). Still unsure why this is happening.
This payload had not been updated to the newest version, and it was running the script that leviw recommended back before Stream.live had a real implementation. So whenever, I powered on, it went right to broadcasting a stream. It wasn't until I powered on a ground station and opened the stream in VLC (using the old address) that I realized what was happening.