Translations:Потеря файлов при обновлении ПО/9/en

Do not confuse the controller firmware update with the update of the installed packages on the device, produced by the commands

apt-get update
apt-get upgrade

When you upgrade packages, the user data remains unchanged, but you may see a dialog box like:

in which you choose whether to overwrite the configuration files. This window appears if you have modified the configuration file related to the updated package (for example, you have added extension modules or modbus devices via the web interface). To save the controller settings you've made before, you should refuse to overwrite the configuration file by selecting ''keep the local version currently installed''. In case of confirmation of overwriting (choosing the top point), old configuration files are irretrievably deleted.