bc3a11097f
The semantics of strong inhibitors require that POLKIT_ALWAYS_QUERY always be set when checking if we can allow blocking inhibitors to be ignored on shutdown, reboot, etc. With the default polkit rules and policy, users may experience a situation where users in the sudo group are authorized to run: systemctl reboot --check-inhibitors=no but the root user is not authorized. Instead, the following error is given: Call to Reboot failed: Interactive authentication required. While this is correct according to the semantics of strong inhibitors, it is confusing. To help the situation, provide example polkit rules that allow root to perform these actions. Finally, when root receives SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED when calling e.g. systemctl reboot, print a message explaining that this is due to the current polkit policy, and point to the new example rule. Related: https://github.com/systemd/systemd/issues/36786
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