272 lines
6.2 KiB
Groff
272 lines
6.2 KiB
Groff
.\" $NetBSD: autoconf.4,v 1.10 2003/08/07 10:31:10 agc Exp $
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.\"
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.\" Copyright (c) 1980, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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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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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)autoconf.4 8.1 (Berkeley) 6/5/93
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.\"
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.Dd June 5, 1993
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.Dt AUTOCONF 4 vax
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.Os
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.Sh NAME
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.Nm autoconf
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.Nd diagnostics from the autoconfiguration code
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.Sh DESCRIPTION
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When
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.Nx
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bootstraps it probes the innards of the machine
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on which it is running and
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locates controllers, drives, and other devices.
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Each item found is recorded on the console.
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This procedure is driven by a system
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configuration table which is processed by
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.Xr config 8
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and compiled into each kernel.
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.Pp
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On the
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.Tn VAX ,
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devices in
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.Tn NEXUS
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slots are normally noted, thus memory controllers,
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.Tn UNIBUS
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and
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.Tn MASSBUS
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adaptors. Devices which are not supported which
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are found in
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.Tn NEXUS
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slots are noted also.
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The Q-bus on the
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.Tn MICROVAX
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is configured in the same way as the
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.Tn UNIBUS .
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.Pp
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.Tn MASSBUS
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devices are located by a very deterministic procedure since
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.Tn MASSBUS
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space is completely probe-able. If devices exist which
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are not configured they will be silently ignored; if devices exist of
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unsupported type they will be noted.
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.Pp
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.Tn UNIBUS
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devices are located by probing to see if their control-status
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registers respond. If not, they are silently ignored. If the control
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status register responds but the device cannot be made to interrupt,
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a diagnostic warning will be printed on the console and the device
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will not be available to the system.
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.Pp
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Normally, the system uses the disk from which it was loaded as the root
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filesystem.
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If that is not possible,
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a generic system will pick its root device
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as the
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.Dq best
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available device
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.Pf ( Tn MASSBUS
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disks are better than
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.Tn SMD UNIBUS
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disks are better than
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.Tn RK07 Ns s ;
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the device must be drive 0
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to be considered).
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If such a system is booted with the
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.Dv RB_ASKNAME
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option (see
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.Xr reboot 2 ) ,
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then the name of the root device is read from the console terminal at boot
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time, and any available device may be used.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It cpu type %d not configured.
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You tried to boot
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.Nx
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on a
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.Tn CPU
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type which it doesn't (or at least this compiled version of
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.Nx
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doesn't)
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understand.
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.Pp
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.It mba%d at tr%d.
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A
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.Tn MASSBUS
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adapter was found in
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.Ql tr%d
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(the
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.Tn NEXUS
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slot number).
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.Nx
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will call it
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.Ql mba%d .
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.Pp
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.It %d mba's not configured.
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More
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.Tn MASSBUS
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adapters were found on
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the machine than were declared in the machine configuration; the excess
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.Tn MASSBUS
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adapters will not be accessible.
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.Pp
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.It uba%d at tr%d.
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A
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.Tn UNIBUS
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adapter was found in
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.Ql tr%d
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(the
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.Tn NEXUS
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slot number).
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.Nx
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will call it
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.Ql uba%d .
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.Pp
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.It dr32 unsupported (at tr %d).
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A
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.Tn DR Ns 32
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interface was found in
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a
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.Tn NEXUS ,
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for which
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.Nx
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does not have a driver.
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.Pp
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.It ci unsupported (at tr %d).
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A
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.Tn CI
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interface was found in
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a
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.Tn NEXUS ,
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for which
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.Nx
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does not have a driver.
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.Pp
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.It mcr%d at tr%d.
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A memory controller was found in
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.Ql tr%d
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(the
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.Tn NEXUS
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slot number).
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.Nx
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will call it
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.Ql mcr%d .
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.Pp
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.It 5 mcr's unsupported.
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.Nx
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supports only 4 memory controllers
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per
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.Tn CPU .
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.Pp
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.It mpm unsupported (at tr%d).
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Multi-port memory is unsupported
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in the sense that
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.Nx
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does not know how to poll it for
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.Tn ECC
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errors.
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.Pp
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.It %s%d at mba%d drive %d.
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A tape formatter or a disk was found
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on the
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.Tn MASSBUS ;
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for disks
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.Ql %s%d
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will look like
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.Dq Li hp0 ,
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for tape formatters
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like
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.Dq Li ht1 .
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The drive number comes from the unit plug on the drive
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or in the
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.Tn TM
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formatter
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.Pf ( Em not
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on the tape drive; see below).
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.Pp
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.It %s%d at %s%d slave %d.
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(For
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.Tn MASSBUS
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devices).
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Which would look like
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.Dq Li tu0 at ht0 slave 0 ,
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where
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.Dq Li tu0
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is the name for the tape device and
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.Dq Li ht0
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is the name
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for the formatter. A tape slave was found on the tape formatter at the
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indicated drive number (on the front of the tape drive).
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.Ux
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will call the device, e.g.,
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.Dq Li tu0 .
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.Pp
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.It "%s%d at uba%d csr %o vec %o ipl %x."
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The device
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.Ql %s%d ,
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e.g.
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.Dq Li dz0
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was found on
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.Ql uba%d
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at control-status register address
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.Ql \&%o
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and with
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device vector
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.Ql \&%o .
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The device interrupted at priority level
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.Ql \&%x .
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.Pp
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.It %s%d at uba%d csr %o zero vector.
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The device did not present
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a valid interrupt vector, rather presented 0 (a passive release condition)
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to the adapter.
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.Pp
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.It %s%d at uba%d csr %o didn't interrupt.
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The device did not interrupt,
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likely because it is broken, hung, or not the kind of device it is advertised
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to be.
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.Pp
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.It %s%d at %s%d slave %d.
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(For UNIBUS devices).
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Which would look like
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.Dq Li up0 at sc0 slave 0 ,
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where
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.Dq Li up0
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is the name of a disk drive and
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.Dq Li sc0
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is the name
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of the controller. Analogous to
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.Tn MASSBUS
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case.
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.El
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.Sh SEE ALSO
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.Xr intro 4 ,
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.Xr boot 8 ,
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.Xr config 8
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.Sh HISTORY
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The
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.Nm
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feature
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appeared in
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.Bx 4.1 .
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