vnd(4)
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VND(4) NetBSD Kernel Interfaces Manual VND(4)
NAME
vnd - vnode disk driver
SYNOPSIS
pseudo-device vnd [count]
DESCRIPTION
The vnd driver provides a disk-like interface to a file. This is useful
for a variety of applications, including swap files and building miniroot
or floppy disk images.
This document assumes that you're familiar with how to generate kernels,
how to properly configure disks and pseudo-devices in a kernel configura-
tion file.
In order to compile in support for the vnd, you must add a line similar
to the following to your kernel configuration file:
pseudo-device vnd 4 # vnode disk driver
The count argument is how many vnds memory is allocated for at boot time.
In this example, no more than 4 vnds may be configured.
There is a run-time utility that is used for configuring vnds. See
vnconfig(8) for more information.
FILES
/dev/{,r}vnd* vnd device special files.
SEE ALSO
MAKEDEV(8), config(8), fsck(8), mount(8), newfs(8), vnconfig(8)
HISTORY
The vnode disk driver was originally written at the University of Utah.
BUGS
The vnd driver does not work if the file does not reside in a local
filesystem.
NetBSD 2.0.2 December 30, 1995 NetBSD 2.0.2
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