$ ps -e | head
PID TTY TIME CMD
1 ? 00:00:01 systemd
Arba galima patikrinti su strings programa, kuri yra binutils pakete:
$ sudo strings /sbin/init | grep -i {systemd; upstart}
# apt-get install sysvinit-core sysvinit sysvinit-utils
# apt-get remove --purge --auto-remove systemd
Tam, kad lennartasD neryžtų:
# echo -e 'Package: *systemd*\nPin: origin ""\nPin-Priority: -1' > /etc/apt/preferences.d/systemd