I’m new to using BalenaOS and I’m currently trying use it to set up multiple services on my raspberry pi. In the description of the architecture overview it shows that the state partition can be used to modify the otherwise read-only system file tree. While I did find a file system mounted at /mnt/state/root-overlay, adding files to it did not result in any modifications to the /etc/ directory (confusingly, changing already existing files did change them in /etc/). I even tried rerunning the resin-state service, but it didn’t help either.
Currently I’m trying to use it to mount a swap file and an external hard drive in the fstab which seems like a pretty standard use case to me.