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701 lines
15 KiB
Groff
701 lines
15 KiB
Groff
.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
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.\" Copyright (c) 2004 Marius Strobl
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Jason R. Thorpe.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" from: NetBSD: eeprom.8,v 1.11 2003/03/31 01:31:39 perry Exp
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.\" $FreeBSD$
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.\"
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.Dd September 1, 2006
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.Dt EEPROM 8 sparc64
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.Os
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.Sh NAME
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.Nm eeprom
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.Nd "display or modify contents of the EEPROM or NVRAM"
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.Sh SYNOPSIS
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.Nm
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.Fl a
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.Nm
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.Op Fl
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.Ar name Ns Op = Ns Ar value
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.Ar ...
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.Sh DESCRIPTION
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The
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.Nm
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utility provides an interface for displaying and changing the system's
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configuration variables contained in EEPROM or NVRAM.
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In the first synopsis form, all available configuration variables and their
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current values are printed.
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In the second form, only the variable selected by
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.Ar name
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and its value is printed or changed if
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.Ar name
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is followed by
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.Ql =
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and a
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.Ar value .
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl
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Commands for displaying or changing variables are taken from stdin, allowing
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one
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.Ar name
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or one
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.Ar name
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and
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.Ar value
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pair per line.
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The output is printed on stdout.
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.It Fl a
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Print all available configuration variables and their current values.
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.El
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.Sh VARIABLES AND VALUES
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Below are variables and values that one is likely to find on a system equipped
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with OpenBoot 3.x and Open Firmware respectively.
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.Pp
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Note: the attempt to set a variable to an illegal value results in the
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Open Firmware setting it to some legal value instead.
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The
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.Nm
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utility will detect this, try to recover the previous value of the variable
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and issue a warning telling that the requested value could not be set.
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.Bl -tag -width ".Va last-hardware-update"
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.It Va auto-boot?
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If
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.Dq Li true ,
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the system will try to boot automatically from the devices listed in
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.Va boot-device
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and
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.Va diag-device
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respectively, using the command specified in
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.Va boot-command
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at power-up.
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Default:
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.Dq Li true .
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.It Va auto-boot-retry?
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If set to
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.Dq Li true
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and
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.Va auto-boot?
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is also set to
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.Dq Li true ,
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the system will try to boot from the specified boot devices forever.
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Default:
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.Dq Li false .
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.It Va ansi-terminal?
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If
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.Dq Li false ,
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.Tn ANSI
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escape sequences are not interpreted by the terminal emulator.
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Default:
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.Dq Li true .
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.It Va boot-command
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Command executed when
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.Va auto-boot?
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is set to
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.Dq Li true .
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Default:
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.Dq Li boot .
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.It Va boot-device
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Default device to boot from if
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.Va diag-switch?
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is set to
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.Dq Li false .
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Takes one or more device aliases or device paths.
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The boot devices are sequentially tried to boot from, beginning with the first
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one specified.
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Default:
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.Dq Li "net disk" .
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.It Va cpci-probe-list
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Digits in the format
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.Dq Li 0,1,2
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specifying in which order to probe the devices on the CompactPCI bus at
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power-up.
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Default: system-dependent.
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.It Va boot-file
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Default arguments for boot when
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.Va diag-switch?
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is set to
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.Dq Li false .
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When empty, the secondary boot loader will choose the file to boot.
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Default: empty string.
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.It Va diag-device
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Like
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.Va boot-device .
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Used when
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.Va diag-switch?
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is set to
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.Dq Li true .
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Default:
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.Dq Li net .
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.It Va diag-file
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Like
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.Va boot-file .
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Used when
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.Va diag-switch?
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is set to
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.Dq Li true .
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Default: empty string.
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.It Va diag-level
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Level of diagnostics to run when
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.Va diag-switch?
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is set to
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.Dq Li true .
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Possible values are
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.Dq Li max ,
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.Dq Li menus ,
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.Dq Li min
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and
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.Dq Li off
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(depending on the system model).
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When set to
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.Dq Li off ,
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the Power-On Self Test (POST) is not run.
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The other values are interpreted by the POST.
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Default:
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.Dq Li min
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or
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.Dq Li max
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(system-dependent).
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.It Va diag-switch?
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If
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.Dq Li true ,
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the system will boot and run in diagnostic mode.
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Default:
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.Dq Li false
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or
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.Dq Li true
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(system-dependent).
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.It Va env-monitor
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Enables or disables the Advanced System Monitoring (ASM).
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Possible values are
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.Dq Li enabled
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and
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.Dq Li disabled .
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Default:
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.Dq Li enabled .
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.It Va fcode-debug?
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Used for debugging FCode programs.
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If set to
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.Dq Li true ,
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names of additional FCodes are registered in the Forth dictionary.
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Default:
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.Dq Li false .
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.It Va hardware-revision
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A string describing the system hardware version.
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Default: system-dependent.
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.It Va input-device
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One of the strings
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.Dq Li keyboard ,
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.Dq Li ttya ,
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or
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.Dq Li ttyb ,
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specifying the default console input device.
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Default:
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.Dq Li keyboard
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or
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.Dq Li ttya
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(system-dependent).
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.It Va keyboard-click?
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If set to
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.Dq Li true ,
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the keys click annoyingly.
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Default:
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.Dq Li false .
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.It Va keymap
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Keymap for a custom keyboard.
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Default: empty string.
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.It Va last-hardware-update
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Similar to
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.Va hardware-revision ,
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describing when the hardware was last updated.
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Default: system-dependent.
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.It Va last-poweroff-cause
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Cause of the last power-off.
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Used internally by the OpenBoot PROM.
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Default:
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.Dq Li 0 .
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.It Va load-base
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Default address where client programs are loaded to.
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It is unlikely that this value should ever be changed.
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Default:
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.Dq Li 16384 .
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.It Va local-mac-address?
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If set to
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.Dq Li false ,
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all Ethernet devices with FCode will use the system default MAC address.
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If set to
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.Dq Li true ,
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Ethernet devices with FCode that contains a unique MAC address will use it
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rather than the system's default MAC address.
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Default:
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.Dq Li false .
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.Pp
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Ethernet devices with FCode include those supported by
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.Xr dc 4 ,
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.Xr gem 4
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and
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.Xr hme 4 .
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Please see the respective manual page for further information.
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.It Va mfg-mode
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Manufacture test mode interpreted by the POST.
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Possible values are
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.Dq Li chamber
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and
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.Dq Li off .
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Default:
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.Dq Li off .
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.It Va mfg-switch?
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If set to
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.Dq Li true ,
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manufacturing tests are repeated until stopped by pressing STOP-A.
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Default:
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.Dq Li off .
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.It Va net-timeout
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If set to
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.Dq Li 0 ,
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the system will try to boot forever when the boot device used is a network
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device.
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Any non-zero value is interpreted as minutes to try a network boot.
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Default:
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.Dq Li 0 .
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.It Va nvramrc
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Contents of the NVRAMRC.
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Default: empty string.
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.Pp
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While
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.Va nvramrc
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can be set using
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.Nm ,
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it is preferred to use
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.Ic nvedit
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in the boot monitor instead.
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.It Va oem-banner
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A string displayed at power-up, rather than the default banner.
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Used when
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.Va oem-banner?
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is set to
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.Dq Li true .
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Default: system-dependent.
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.It Va oem-banner?
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If set to
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.Dq Li true ,
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the string stored in
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.Va oem-banner
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is displayed at power-up rather than the default banner.
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Default: system-dependent.
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.It Va oem-logo
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A logo displayed at power-up when
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.Va oem-logo?
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is set to
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.Dq Li true ,
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rather than the default logo.
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The logo has to be 512 bytes in size, containing a 64x64-bit monochrome image
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in Sun Raster format without the leading 32-byte header.
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Default: system-dependent.
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.Pp
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To set the logo with
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.Nm ,
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give the pathname of the file containing the image as the
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.Ar value .
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Using an empty
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.Ar value
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will remove the image.
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.It Va oem-logo?
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If set to
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.Dq Li true ,
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the logo stored in
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.Va oem-logo
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is displayed at power-up rather than the default logo.
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.It Va output-device
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One of the strings
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.Dq Li screen ,
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.Dq Li ttya ,
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or
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.Dq Li ttyb ,
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specifying the default console output device.
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Default:
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.Dq Li screen
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or
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.Dq Li ttya
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(system-dependent).
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.It Va pcia-probe-list
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Digits in the format
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.Dq Li 1,2,3
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specifying in which order to probe the devices on the PCI bus A.
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Default: system-dependent.
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.It Va pcib-probe-list
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Like
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.Va pcia-probe-list ,
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but for PCI bus B.
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Default: system-dependent.
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.It Va #power-cycles
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Number of power-cycles.
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Automatically incremented on each power-cycle.
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Default: system-dependent.
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.It Va sbus-probe-list
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Digits in the format
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.Dq Li 0123
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specifying in which order to probe the SBus slots at power-up.
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Default: system-dependent.
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.It Va screen-#columns
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An integer specifying the screen width in characters per line.
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Default:
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.Dq Li 80 .
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.It Va screen-#rows
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An integer specifying the screen height in lines.
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Default:
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.Dq Li 34 .
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.It Va scsi-initiator-id
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The SCSI ID of SCSI controllers in the range of [0-7] or [0-f] (depending
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on the controller).
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A SCSI controller may or may not adhere to this setting, depending on its
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FCode and device driver.
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Default:
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.Dq Li 7 .
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.It Va security-#badlogins
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Number of incorrect password attempts when
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.Va security-mode
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is set to
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.Dq Li command
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or
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.Dq Li full .
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Default:
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.Dq Li 0 .
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.It Va security-mode
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Boot monitor security level.
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One of the three possible values
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.Dq Li full ,
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.Dq Li command ,
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or
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.Dq Li none .
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When set to
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.Dq Li full ,
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all boot monitor commands except for
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.Ic go
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require the password.
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When set to
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.Dq Li command ,
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all boot monitor commands except for
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.Ic boot
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and
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.Ic go
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require the password.
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When set to
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.Dq Li none ,
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no password is required.
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Default:
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.Dq Li none .
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.Pp
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When
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.Nm
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is used to set
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.Va security-mode
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to
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.Dq Li full
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or
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.Dq Li command ,
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you will be prompted for the password.
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When
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.Va security-mode
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is set to
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.Dq Li none ,
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.Nm
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will clear the password.
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.It Va security-password
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The password used when
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.Va security-mode
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is set to
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.Dq Li full
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or
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.Dq Li command .
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The maximum length for this password is 8 characters.
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All characters exceeding this length will be ignored.
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The value displayed for
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.Va security-password
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is always an empty string, even when a password is set.
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Default: empty string.
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.Pp
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When
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.Va security-mode
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is set to
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.Dq Li full
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or
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.Dq Li command ,
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.Nm
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can be used to enter a new password using any
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.Ar value
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for
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.Va security-password
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on the command line.
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You will be prompted by
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.Nm
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to type in the new password in this case.
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Trying to set
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.Va security-password
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when
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.Va security-mode
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is set to
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.Dq Li none
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using
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.Nm
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has no effect.
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.It Va selftest-#megs
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An integer specifying the number of megabytes of memory to test upon
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power-up when
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.Va diag-switch?
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is set to
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.Dq Li false .
|
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Default:
|
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.Dq Li 1 .
|
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.It Va shutdown-temperature
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Temperature at which the ASM issues an over-temperature shutdown.
|
|
Default: system-dependent.
|
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.It Va silent-mode
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|
If set to
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.Dq Li true ,
|
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memory test messages will not be displayed at power-up.
|
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Default:
|
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.Dq Li false .
|
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.It Va sunmon-compat?
|
|
If set to
|
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.Dq Li true ,
|
|
the old bootROM interface will be used while in the boot monitor,
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rather than the OpenBoot PROM interface.
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Default:
|
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.Dq Li false .
|
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.It Va system-board-date
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Manufacturing date of the system board.
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Default: system-dependent.
|
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.It Va system-board-serial#
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Serial number of the system board.
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Default: system-dependent.
|
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.It Va tpe-link-test?
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Enable link test on 10baseT and 100baseTX Ethernet devices.
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Default:
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.Dq Li true .
|
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.It Va ttya-mode
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A string of five comma separated fields in the format
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.Dq Li 9600,8,n,1,- .
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The first field is the baud rate.
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The second field is the number of data bits.
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The third field is the parity; acceptable values for parity are
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.Ql n
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(none),
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.Ql e
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(even),
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.Ql o
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(odd),
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.Ql m
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(mark), and
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.Ql s
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(space).
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The fourth field is the number of stop bits.
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The fifth field is the
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.Dq handshake
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field; acceptable values are
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.Ql -
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(none),
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.Ql h
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(RTS/CTS), and
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.Ql s
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(Xon/Xoff).
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|
Default:
|
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.Dq Li 9600,8,n,1,- .
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.It Va ttya-ignore-cd
|
|
If set to
|
|
.Dq Li true ,
|
|
the system will ignore carrier detect.
|
|
Default:
|
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.Dq Li true .
|
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.It Va ttya-rts-dtr-off
|
|
If set to
|
|
.Dq Li true ,
|
|
the system will ignore RTS/DTR.
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|
Default:
|
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.Dq Li false .
|
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.It Va ttyb-mode
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Like
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.Va ttya-mode ,
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but for ttyb.
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|
Default:
|
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.Dq Li 9600,8,n,1,- .
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.It Va ttyb-ignore-cd
|
|
Like
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|
.Va ttya-ignore-cd ,
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|
but for ttyb.
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Default:
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.Dq Li true .
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|
.It Va ttyb-rts-dtr-off
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|
Like
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|
.Va ttya-rts-dtr-off ,
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but for ttyb.
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|
Default:
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.Dq Li false .
|
|
.It Va use-boot-table?
|
|
Use boot table defined by the OEM.
|
|
Default: system-dependent.
|
|
.It Va use-nvramrc?
|
|
If set to
|
|
.Dq Li true ,
|
|
the script stored in
|
|
.Va nvramrc
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|
will be executed during start-up.
|
|
Default:
|
|
.Dq Li false .
|
|
.It Va warning-temperature
|
|
Temperature at which the ASM issues an over-temperature warning.
|
|
Default: system-dependent.
|
|
.It Va watchdog-enable?
|
|
Enables or disables the system watchdog timer.
|
|
Default:
|
|
.Dq Li false .
|
|
.It Va watchdog-reboot?
|
|
If set to
|
|
.Dq Li true ,
|
|
the system will reboot upon terminal count of the system watchdog timer.
|
|
If set to
|
|
.Dq Li false ,
|
|
the system will fall into the boot monitor.
|
|
Default:
|
|
.Dq Li false .
|
|
.It Va watchdog-timeout
|
|
Expiry limit for the system watchdog timer.
|
|
Range and unit depend on the system model.
|
|
Default: system-dependent.
|
|
.El
|
|
.Sh EXAMPLES
|
|
Print all available configuration variables and their current values:
|
|
.Pp
|
|
.Dl "eeprom -a"
|
|
.Pp
|
|
Print the current value of the
|
|
.Va local-mac-address?
|
|
variable:
|
|
.Pp
|
|
.Dl "eeprom local-mac-address\e?"
|
|
.Pp
|
|
Set the value of the
|
|
.Va local-mac-address?
|
|
variable to
|
|
.Dq Li true :
|
|
.Pp
|
|
.Dl "eeprom local-mac-address\e?=true"
|
|
.Pp
|
|
Note that the
|
|
.Ql \e
|
|
in the above examples is used to keep the shell from interpreting the
|
|
.Ql \&? .
|
|
.Pp
|
|
Write an image to the
|
|
.Va oem-logo
|
|
variable:
|
|
.Pp
|
|
.Dl "eeprom oem-logo=/path/to/image.raw"
|
|
.Pp
|
|
Remove the image from the
|
|
.Va oem-logo
|
|
variable again:
|
|
.Pp
|
|
.Dl "eeprom oem-logo="
|
|
.Pp
|
|
Set the value of the
|
|
.Va security-mode
|
|
variable to
|
|
.Dq Li full ,
|
|
and set the password:
|
|
.Bd -literal -offset indent
|
|
eeprom security-mode=full
|
|
New password:
|
|
Retype new password:
|
|
.Ed
|
|
.Pp
|
|
Remember that the maximum length for the password is 8 characters.
|
|
All characters exceeding this length will be ignored.
|
|
.Pp
|
|
Set a new password when the
|
|
.Va security-mode
|
|
variable is set to
|
|
.Dq Li command
|
|
or
|
|
.Dq Li full :
|
|
.Bd -literal -offset indent
|
|
eeprom security-password=
|
|
New password:
|
|
Retype new password:
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr dc 4 ,
|
|
.Xr gem 4 ,
|
|
.Xr hme 4 ,
|
|
.Xr ofwdump 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
utility first appeared in
|
|
.Bx 4.4 .
|
|
It was adopted from there by
|
|
.Fx 2.0 .
|
|
The
|
|
.Nm
|
|
utility was removed from
|
|
.Fx
|
|
again after
|
|
.Fx 2.1.7
|
|
because the utility was unused at that time.
|
|
The present implementation of the
|
|
.Nm
|
|
utility first appeared in
|
|
.Fx 5.3 .
|
|
It is inspired by the
|
|
.Nx
|
|
.Xr eeprom 8
|
|
and SunOS/Solaris
|
|
.Xr eeprom 1M
|
|
utilities.
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
The
|
|
.Nm
|
|
utility uses base code from the
|
|
.Nx
|
|
version written by
|
|
.An Jason R. Thorpe .
|
|
The handlers for the Open Firmware
|
|
.Pa /options
|
|
node were written by
|
|
.An Marius Strobl Aq Mt marius@FreeBSD.org .
|
|
The code for accessing the Open Firmware device tree is shared with the
|
|
.Xr ofwdump 8
|
|
utility written by
|
|
.An Thomas Moestl Aq Mt tmm@FreeBSD.org .
|
|
.Sh BUGS
|
|
Currently,
|
|
.Nm
|
|
only supports systems equipped with Open Firmware and is only tested on Sun
|
|
Microsystems sun4u machines.
|