1 .\" $NetBSD: autoconf.4,v 1.10 2003/08/07 10:31:10 agc Exp $
3 .\" Copyright (c) 1980, 1991, 1993
4 .\" The Regents of the University of California. All rights reserved.
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
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. Neither the name of the University nor the names of its contributors
15 .\" may be used to endorse or promote products derived from this software
16 .\" without specific prior written permission.
18 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 .\" from: @(#)autoconf.4 8.1 (Berkeley) 6/5/93
37 .Nd diagnostics from the autoconfiguration code
41 bootstraps it probes the innards of the machine
42 on which it is running and
43 locates controllers, drives, and other devices.
44 Each item found is recorded on the console.
45 This procedure is driven by a system
46 configuration table which is processed by
48 and compiled into each kernel.
54 slots are normally noted, thus memory controllers,
58 adaptors. Devices which are not supported which
64 is configured in the same way as the
68 devices are located by a very deterministic procedure since
70 space is completely probe-able. If devices exist which
71 are not configured they will be silently ignored; if devices exist of
72 unsupported type they will be noted.
75 devices are located by probing to see if their control-status
76 registers respond. If not, they are silently ignored. If the control
77 status register responds but the device cannot be made to interrupt,
78 a diagnostic warning will be printed on the console and the device
79 will not be available to the system.
81 Normally, the system uses the disk from which it was loaded as the root
83 If that is not possible,
84 a generic system will pick its root device
93 the device must be drive 0
95 If such a system is booted with the
99 then the name of the root device is read from the console terminal at boot
100 time, and any available device may be used.
103 .It cpu type %d not configured.
108 type which it doesn't (or at least this compiled version of
125 .It %d mba's not configured.
128 adapters were found on
129 the machine than were declared in the machine configuration; the excess
131 adapters will not be accessible.
145 .It dr32 unsupported (at tr %d).
148 interface was found in
153 does not have a driver.
155 .It ci unsupported (at tr %d).
158 interface was found in
163 does not have a driver.
166 A memory controller was found in
175 .It 5 mcr's unsupported.
177 supports only 4 memory controllers
181 .It mpm unsupported (at tr%d).
182 Multi-port memory is unsupported
185 does not know how to poll it for
189 .It %s%d at mba%d drive %d.
190 A tape formatter or a disk was found
200 The drive number comes from the unit plug on the drive
205 on the tape drive; see below).
207 .It %s%d at %s%d slave %d.
211 Which would look like
212 .Dq Li tu0 at ht0 slave 0 ,
215 is the name for the tape device and
218 for the formatter. A tape slave was found on the tape formatter at the
219 indicated drive number (on the front of the tape drive).
221 will call the device, e.g.,
224 .It "%s%d at uba%d csr %o vec %o ipl %x."
231 at control-status register address
236 The device interrupted at priority level
239 .It %s%d at uba%d csr %o zero vector.
240 The device did not present
241 a valid interrupt vector, rather presented 0 (a passive release condition)
244 .It %s%d at uba%d csr %o didn't interrupt.
245 The device did not interrupt,
246 likely because it is broken, hung, or not the kind of device it is advertised
249 .It %s%d at %s%d slave %d.
250 (For UNIBUS devices).
251 Which would look like
252 .Dq Li up0 at sc0 slave 0 ,
255 is the name of a disk drive and
258 of the controller. Analogous to