nbdkit-null-plugin(1) NBDKIT nbdkit-null-plugin(1) NAME nbdkit-null-plugin - nbdkit bitbucket plugin SYNOPSIS nbdkit null [[size=]SIZE] DESCRIPTION "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 "De- tect if a filter is installed" in nbdkit-probing(1). PARAMETERS [size=]SIZE Specify the virtual size of the disk image. This parameter is optional. If omitted then a zero-sized device is created. "size=" prefix may be omitted in most cases. See "Magic parameters" in nbdkit(1). FILES $plugindir/nbdkit-null-plugin.so The plugin. Use "nbdkit --dump-config" to find the location of $plugindir. VERSION "nbdkit-null-plugin" first appeared in nbdkit 1.2. SEE ALSO nbdkit(1), nbdkit-plugin(3), nbdkit-full-plugin(1), nbdkit-ones-plugin(1), nbdkit-pattern-plugin(1), nbdkit-random-plugin(1). nbdkit-sparse-ran- dom-plugin(1), nbdkit-zero-plugin(1). AUTHORS Richard W.M. Jones COPYRIGHT Copyright Red Hat LICENSE Redistribution and use in source and binary forms, with or without modifi- cation, 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 no- tice, this list of conditions and the following disclaimer in the docu- mentation 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 EX- PRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS- CLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DI- RECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SER- VICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABIL- ITY, 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 DAM- AGE. nbdkit-1.46.2 2026-08-30 nbdkit-null-plugin(1)
NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | FILES | VERSION | SEE ALSO | AUTHORS | COPYRIGHT | LICENSE
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