OrPiNoob

ok. sorry for my lack of knowledge about.

Armbian 22.05.0-trunk with bleeding edge Linux 5.16.20-rockchip64 my armbian runs on a MKS SKIPR motherboard for a 3d printer. Since I updated the system, I can no longer change any files. I change it but after a restart the file is back as it was.since i have updated the system for example this file nano /etc/resolv.conf After saving and restarting everything is as it was. no matter whether as root or user Is there a setting that prevents or reverses changes?