I have multiple RUT240 deployed all over a city. In the original configuration before deployment i created a script in /etc/openvpn/script/ that is monitoring and if necessary restarting the OpenVPN service. This script is running every 10 minutes with crontab. There was no problem with this configuration.
About 3-4 months after deployment i need to add something to the script but i get read-only file system. This is in at least 10 of my deployed RUT240. I tried rebooting but nothing. I tried to change a file in some other folder (/tmp/) but the same error. The routers seem to work fine, at least for my goal, but i cannot make any change on them.
I also tried to make some changes in the firewall (custom rules) but from the web ui after save the changes i make disappear. If i try to vi the file /etc/firewall.user the same problem, read-only file system
How can i revoke read-only from file system?