1nbdkit-ones-plugin(1)               NBDKIT               nbdkit-ones-plugin(1)
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NAME

6       nbdkit-ones-plugin - nbdkit plugin filled with repeated 0xff or other
7       bytes
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SYNOPSIS

10        nbdkit ones [[size=]SIZE] [byte=N]
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DESCRIPTION

13       "nbdkit-ones-plugin" is a plugin for nbdkit(1).  Any read returns a
14       repeating pattern of 0xff (all ones) bytes, or another repeating byte
15       if you use the "byte" parameter.  Everything written to the virtual
16       device is discarded.
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18       Most NBD consumers will be very confused by this device.  It is mainly
19       useful for testing.  nbdkit-data-plugin(1) can be used to create a
20       modifiable RAM disk initialized with fixed data.
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PARAMETERS

23       byte=N
24           Set the repeating byte to "N".  The default is 0xff (all ones).
25
26           Instead of "byte=0" it is more efficient to use
27           nbdkit-null-plugin(1).
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29       [size=]SIZE
30           Specify the virtual size of the disk image.
31
32           This parameter is optional.  If omitted then a zero-sized device is
33           created.
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35           "size=" is a magic config key and may be omitted in most cases.
36           See "Magic parameters" in nbdkit(1).
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FILES

39       $plugindir/nbdkit-ones-plugin.so
40           The plugin.
41
42           Use "nbdkit --dump-config" to find the location of $plugindir.
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VERSION

45       "nbdkit-ones-plugin" first appeared in nbdkit 1.36.
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SEE ALSO

48       nbdkit(1), nbdkit-plugin(3), nbdkit-data-plugin(1),
49       nbdkit-full-plugin(1), nbdkit-null-plugin(1), nbdkit-pattern-plugin(1),
50       nbdkit-random-plugin(1).  nbdkit-sparse-random-plugin(1),
51       nbdkit-zero-plugin(1).
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AUTHORS

54       Richard W.M. Jones
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57       Copyright Red Hat
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LICENSE

60       Redistribution and use in source and binary forms, with or without
61       modification, are permitted provided that the following conditions are
62       met:
63
64       •   Redistributions of source code must retain the above copyright
65           notice, this list of conditions and the following disclaimer.
66
67       •   Redistributions in binary form must reproduce the above copyright
68           notice, this list of conditions and the following disclaimer in the
69           documentation and/or other materials provided with the
70           distribution.
71
72       •   Neither the name of Red Hat nor the names of its contributors may
73           be used to endorse or promote products derived from this software
74           without specific prior written permission.
75
76       THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY
77       EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
78       IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
79       PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE
80       LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
81       CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
82       SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
83       BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
84       WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
85       OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
86       ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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90nbdkit-1.36.2                     2023-11-26             nbdkit-ones-plugin(1)
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