$NetBSD: mdconfig.8,v 1.10 2017/07/03 21:35:31 wiz Exp $

Copyright (c) 1995 Gordon W. Ross
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.Dd July 8, 1993 .Dt MDCONFIG 8 .Os .Sh NAME .Nm mdconfig .Nd configure MEMORY disks .Sh SYNOPSIS .Nm .Ar special_file .Ar 512-byte-blocks .Sh DESCRIPTION The .Nm command configures memory disk devices. It will associate the special file .Ar special_file with a range of user-virtual memory allocated by the .Nm process itself. The .Nm command should be run in the background. If successful, the command will not return. Otherwise, an error message will be printed.

p To "unconfigure" the memory disk, just kill the background .Nm process started earlier. .Sh FILES l -tag -width /etc/rmd?? -compact t Pa /dev/rmd?? t Pa /dev/md?? .El .Sh EXAMPLES .Dl mdconfig /dev/md0c 2048 &

p Configures the memory disk

a md0c with one megabyte of user-space memory. .Sh SEE ALSO .Xr mount 8 , .Xr swapon 8 , .Xr umount 8 .Sh BUGS The special device will become inoperative if the .Nm process is killed while the special device is open.