NAME

       systemd-sysv-generator - Unit generator for SysV init scripts

SYNOPSIS

       /lib/systemd/system-generators/systemd-sysv-generator

DESCRIPTION

       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 (runlevelX.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).

SEE ALSO

       systemd(1), systemd.service(5), systemd.target(5)

NOTES

        1. SysV init
           https://savannah.nongnu.org/projects/sysvinit

        2. LSB headers
           http://refspecs.linuxbase.org/LSB_3.1.1/LSB-Core-generic/LSB-Core-generic/iniscrptact.html

        3. Incompatibilities with SysV
           https://www.freedesktop.org/wiki/Software/systemd/Incompatibilities