1.\" $NetBSD: mdsetimage.8,v 1.12 2016/09/21 16:25:41 christos Exp $ 2.\" 3.\" Copyright (c) 1996 Christopher G. Demetriou 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. The name of the author may not be used to endorse or promote products 15.\" derived from this software without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.\" <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>> 29.\" 30.Dd September 21, 2016 31.Dt MDSETIMAGE 8 32.Os 33.Sh NAME 34.Nm mdsetimage 35.Nd set kernel RAM disk image 36.Sh SYNOPSIS 37.Nm 38.Op Fl svx 39.Op Fl b Ar bfdname 40.Op Fl I Ar image_symbol 41.Op Fl S Ar size_symbol 42.Op Fl T Ar address 43.Ar kernel 44.Ar image 45.Sh DESCRIPTION 46The 47.Nm 48command copies the disk image specified by 49.Ar image 50into the memory disk storage area in 51.Ar kernel . 52The file system present in 53.Ar image 54will typically be used by the kernel 55as the root file system. 56.Pp 57To recognize kernel executable format, the 58.Fl b 59flag specifies BFD name of kernel. 60.Pp 61The 62.Fl I 63and 64.Fl S 65flags specify the symbol names of image and size of memory disk 66drivers respectively. 67.Pp 68For a.out kernels only, the 69.Fl T 70flag specifies the starting address of kernel text. 71This flag is ignored for other kernel executable formats. 72.Pp 73If the 74.Fl s 75flags is given, 76.Nm 77will write back the actual disk image size back into 78.Ar kernel . 79.Pp 80If the 81.Fl v 82flag is given, 83.Nm 84will print out status information as 85it is copying the image. 86.Pp 87If the 88.Fl x 89flag is given, 90.Nm 91will extract the disk image from 92.Ar kernel 93into the file 94.Ar image . 95This is the opposite of the default behavior. 96.Sh SEE ALSO 97.Xr md 4 , 98.Xr mdconfig 8 99