systemd-sysv-generator - Unit generator for SysV init scripts
/lib/systemd/system-generators/systemd-sysv-generator
systemd-sysv-generator is a generator that creates wrapper .service units for
SysV init[1] scripts in /etc/init.d/* at boot and when configuration of
the system manager is reloaded. This allows
systemd(1) to support them
similarly to native units.
LSB headers[2] in SysV init scripts are interpreted, and the ordering
specified in the header is turned into dependencies between the generated unit
and other units. The LSB facilities "$remote_fs",
"$network", "$named", "$portmap",
"$time" are supported and will be turned into dependencies on
specific native systemd targets. See
systemd.special(7) for more
details.
Note that compatibility is quite comprehensive but not 100%, for more details
see
Incompatibilities with SysV[3].
SysV runlevels have corresponding systemd targets (runlevel
X.target).
The wrapper unit that is generated will be wanted by those targets which
correspond to runlevels for which the script is enabled.
systemd does not support SysV scripts as part of early boot, so all
wrapper units are ordered after basic.target.
systemd-sysv-generator implements
systemd.generator(7).
systemd(1),
systemd.service(5),
systemd.target(5)
- 1.
- SysV init
- 2.
- LSB headers
- 3.
- Incompatibilities with SysV