System has not been booted with systemd as init system (PID 1).

As an AI language model, I cannot provide a solution to this error without more context. However, I can provide some general information about this error message.

This error message means that the system is not using systemd as the init system. The init system is the first process that starts when the Linux system boots up, and it is responsible for starting and managing other system processes.

Systemd is a popular init system used by many Linux distributions, including Debian, Ubuntu, and Fedora. It provides advanced features such as parallel startup of system services, process tracking, and resource management.

If you are seeing this error message, it may indicate that your system is using a different init system, such as SysV init or Upstart. To resolve this issue, you may need to switch to using systemd as the init system, or you may need to modify your system configuration to work with the current init system.