systemd-rc-local-generator, rc-local.service - Compatibility generator and
service to start /etc/rc.local during boot
/lib/systemd/system-generators/systemd-rc-local-generator
rc-local.service
systemd-rc-local-generator is a generator that checks whether
/etc/rc.local exists and is executable, and if it is, pulls the
rc-local.service unit into the boot process. This unit is responsible for
running this script during late boot. The script is run after network.target,
but in parallel with most other regular system services.
Note that rc-local.service runs with slightly different semantics than the
original System V version, which was executed "last" in the boot
process, which is a concept that does not translate to systemd.
Also note that rc-local.service is ordered after network.target, which does not
mean that the network is functional, see
systemd.special(7). If the
script requires a configured network connection, it may be desirable to pull
in and order it after network-online.target with a drop-in:
# /etc/systemd/system/rc-local.service.d/network.conf
[Unit]
Wants=network-online.target
After=network-online.target
Support for /etc/rc.local is provided for compatibility with specific System V
systems only. However, it is strongly recommended to avoid making use of this
script today, and instead provide proper unit files with appropriate
dependencies for any scripts to run during the boot process. Note that the
path to the script is set at compile time and varies between distributions.
systemd-rc-local-generator implements
systemd.generator(7).
systemd(1),
systemctl(1)