Documentation Boot Beat

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systemd is a system and service manager, replacement for SysVinit and Upstart. After a six months shift, during which it has been more granularly tested, Fedora 15 brings in, by default, a new system daemon whose code is designed from scratch, with the objective to take the maximum advantage offered by modern Linux kernel.

With systemd, Fedora 15 boots-up faster, particularly on SSD; native systemd service configuration files (or units) are much easier to understand and configure compared to sysvinit scripts, as systemd uses .service files instead of bash script; all daemons are sorted into their own Linux cgroups, which you may explore beneath /cgroup/systemd in the file system hierarchy; administrative features of the init system are considerably extended.

Refer to for more complete information on systemd in Fedora.


Lennart Poettering (lpoetter AT

4kB Sector disk boot support

Booting 4kB sector disks in UEFI environments is now supported.

/var/run and /var/lock

/var/run and /var/lock are now mounted from tmpfs, and hence emptied on reboot. Applications must ensure to recreate their own files/dirs on startup, and cannot rely that doing this at package installation will suffice. It is possible to use systemd's tmpfiles.d/ mechanism to recreate directories and files beneath /var/run and /var/lock on boot, if necessary. See tmpfiles.d(5) for details (