nbdkit-null-plugin - nbdkit bitbucket plugin

       Richard W.M. Jones

       Copyright Red Hat

       "nbdkit-null-plugin" is a null plugin for nbdkit(1).  Everything written to the virtual device is
       discarded, and reads back as zeroes.

       Most NBD consumers will be very confused by this device.  Trying to create filesystems etc on it will
       likely fail badly.  If the client is caching writes locally then you will get inconsistent read
       behaviour.

       The null plugin is also used when probing for installed filters, see "Detect if a filter is installed" in
       nbdkit-probing(1).

$plugindir/nbdkit-null-plugin.so
           The plugin.

           Use "nbdkit --dump-config" to find the location of $plugindir.

       Redistribution and use in source and binary forms, with or without modification, are  permitted  provided
       that the following conditions are met:

       •   Redistributions  of  source  code must retain the above copyright notice, this list of conditions and
           the following disclaimer.

       •   Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
           the following disclaimer in the documentation and/or other materials provided with the distribution.

       •   Neither the name of Red Hat nor the names of its contributors may  be  used  to  endorse  or  promote
           products derived from this software without specific prior written permission.

       THIS  SOFTWARE  IS  PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS  FOR  A  PARTICULAR
       PURPOSE  ARE  DISCLAIMED.  IN  NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
       INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT  OF
       SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
       ON  ANY  THEORY  OF  LIABILITY,  WHETHER  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
       OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
       DAMAGE.

nbdkit-1.42.2                                      2025-04-02                              nbdkit-null-plugin(1)

       nbdkit-null-plugin - nbdkit bitbucket plugin

       [size=]SIZE
           Specify the virtual size of the disk image.

           This parameter is optional.  If omitted then a zero-sized device is created.

           "size=" is a magic config key and may be omitted in most cases.  See "Magic parameters" in nbdkit(1).

nbdkit(1),   nbdkit-plugin(3),  nbdkit-full-plugin(1),  nbdkit-ones-plugin(1),  nbdkit-pattern-plugin(1),
       nbdkit-random-plugin(1).  nbdkit-sparse-random-plugin(1), nbdkit-zero-plugin(1).

        nbdkit null [[size=]SIZE]

       "nbdkit-null-plugin" first appeared in nbdkit 1.2.