1/* $NetBSD: bootoptions,v 1.1 2001/10/18 00:05:01 reinoud Exp $ */ 2 3/* 4 * Copyright (c) 1996 Mark Brinicombe. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Mark Brinicombe. 18 * 4. The name of the company nor the name of the author may be used to 19 * endorse or promote products derived from this software without specific 20 * prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * RiscBSD kernel project 35 * 36 * bootoptions 37 * 38 * Description of all available boot options 39 * 40 * Created : 02/10/96 41 * Updated : 20/02/01 42 */ 43 44This file describes all the boot options available. 45 46RiscPC Boot options 47 48 Options for all kernels 49 50 nocache Disable all processor caches 51 nowritebuf Disable processor write buffer 52 fpaclk2 Clock FPA at half processor clock speed 53 single Single user mode 54 kdb KDB 55 maxproc= Specify the maximum in-core processes (L1 page tables) 56 ramdisc= Specify ramdisc size in KB 57 nbuf= Specify the number of buffers 58 nowdreset Skip the wd driver drive reset command 59 ascpoll Use polling mode rather than interrupt mode for the asc 60 driver 61 nbuf= Specify the number of buffers to use. 62 63 Options for StrongARM kernels 64 65 icache Enable instruction cache 66 dcache Enable data cache 67 68 Special debugging options not for normal use 69 70 pmapdebug= Specify pmap debug level 71 termdebug Enable console debugging 72 notermcls Console debugging option 73 74RC7500 Boot options 75 76 -s Single user mode 77 -a Prompt for root device 78 -k KDB 79 -m video memory size 80 81