SD_BOOTED(3) sd_booted SD_BOOTED(3)
sd_booted - Test whether the system is running the systemd init system
#include <systemd/sd-daemon.h> int sd_booted(void);
sd_booted() checks whether the system was booted up using the systemd init system.
On failure, this call returns a negative errno-style error code. If the system was booted up with systemd as init system, this call returns a positive return value, zero otherwise.
These APIs are implemented as a shared library, which can be compiled and linked to with the libsystemd pkg-config(1) file. Internally, this function checks whether the directory /run/systemd/system/ exists. A simple check like this can also be implemented trivially in shell or any other language.
This page is part of the systemd (systemd system and service manager) project. Information about the project can be found at ⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have a bug report for this manual page, see ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩. This page was obtained from the project's upstream Git repository ⟨https://github.com/systemd/systemd.git⟩ on 2020-06-09. (At that time, the date of the most recent commit that was found in the repos‐ itory was 2020-06-09.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to email@example.com systemd 245 SD_BOOTED(3)
Pages that refer to this page: systemd-notify(1), sd_alert(3), SD_ALERT(3), sd_crit(3), SD_CRIT(3), sd-daemon(3), sd_debug(3), SD_DEBUG(3), sd_emerg(3), SD_EMERG(3), sd_err(3), SD_ERR(3), sd_info(3), SD_INFO(3), sd_notice(3), SD_NOTICE(3), sd_warning(3), SD_WARNING(3), 30-systemd-environment-d-generator(7), systemd.directives(7), systemd.index(7)