I would like to better understand the problems related to writable root file system and OTA updates. I have read many places that if you enable writable root file system, you will no longer get OTA updates.
How, then, will I get updates? Will the "same" updates be provided via apt-get?
If I decide to go back to a RO file system. How will those OTA updates affect my system? Is it a complete root file system replacing my old one? If so, I suppose no real harm is done, except I will lose changes I've made to my root fs.
What about re-flashing the phone. Can I simply flash a new root file system back onto the phone? If that is possible, I also suppose it will not affect any private data or installed apps. Will I then simply be able to boot up with the newly re-flashed root file system, and all apps, scopes and configurations will remain intact as if nothing had happened?
As mentioned, I have read many places warnings about "unknown consequences" by changing the root file system to RW mode and OTA updates not being an option anymore. But I have found nowhere a bit more in-depth description as the how's and why's of what really happens.