1.\" $OpenBSD: rd.4,v 1.1 2001/05/14 09:32:36 deraadt Exp $ 2.\" 3.\" This file is in the public domain. 4.\" 5.Dd May 14, 2001 6.Dt RD 4 7.Os 8.Sh NAME 9.Nm rd 10.Nd ramdisk driver 11.Sh SYNOPSIS 12.Cd "pseudo-device rd" 13.Sh DESCRIPTION 14The 15.Nm 16driver enables use of system or user memory as a disk. 17Memory for the disk must be allocated and initialized inside the 18kernel image at build-time using the 19.Nm rdsetroot 20tool. 21.Sh FILES 22.Bl -tag -width /dev/rrdXX -compact 23.It Pa "/dev/rd??" 24block mode ramdisk devices. 25.It Pa "/dev/rrd??" 26raw mode ramdisk devices. 27.El 28.Sh SEE ALSO 29The 30.Nm rdsetroot 31tool is available as part of the distribution toolset. 32