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+
+============================================================
+ ceph-detect-init -- display the init system Ceph should use
+============================================================
+
+.. program:: ceph-detect-init
+
+Synopsis
+========
+
+| **ceph-detect-init** [--verbose] [--use-rhceph] [--default *init*]
+
+Description
+===========
+
+:program:`ceph-detect-init` is a utility that prints the init system
+Ceph uses. It can be one of ``sysvinit``, ``upstart`` or ``systemd``.
+The init system Ceph uses may not be the default init system of the
+host operating system. For instance on Debian Jessie, Ceph may use
+``sysvinit`` although ``systemd`` is the default.
+
+If the init system of the host operating system is unknown, return on
+error, unless :option:`--default` is specified.
+
+Options
+=======
+
+.. option:: --use-rhceph
+
+   When an operating system identifies itself as Red Hat, it is
+   treated as if it was CentOS. With :option:`--use-rhceph` it is
+   treated as RHEL instead.
+
+.. option:: --default INIT
+
+   If the init system of the host operating system is unkown, return
+   the value of *INIT* instead of failing with an error.
+
+.. option:: --verbose
+
+   Display additional information for debugging.
+
+Bugs
+====
+
+:program:`ceph-detect-init` is used by :program:`ceph-disk` to figure out the init system to manage the mount directory of an OSD. But only following combinations are fully tested:
+
+- `upstart` on `Ubuntu 14.04`
+- `systemd` on `Ubuntu 15.04` and up
+- `systemd` on `Debian 8` and up
+- `systemd` on `RHEL/CentOS 7` and up
+- `systemd` on `Fedora 22` and up
+
+Availability
+============
+
+:program:`ceph-detect-init` is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to
+the Ceph documentation at http://ceph.com/docs for more information.
+
+See also
+========
+
+:doc:`ceph-disk <ceph-disk>`\(8),
+:doc:`ceph-deploy <ceph-deploy>`\(8)