Commit | Line | Data |
---|---|---|
70567b1c | 1 | .\" Copyright (c) 1980, 1991 The Regents of the University of California. |
61dbfbf1 | 2 | .\" All rights reserved. |
6f5c285b | 3 | .\" |
31b39933 | 4 | .\" %sccs.include.redist.man% |
61dbfbf1 | 5 | .\" |
50d77188 | 6 | .\" @(#)boot_tahoe.8 6.6 (Berkeley) %G% |
6f5c285b | 7 | .\" |
70567b1c | 8 | .Dd |
50d77188 KB |
9 | .Dt BOOT 8 |
10 | .Os | |
70567b1c | 11 | .Sh NAME |
50d77188 | 12 | .Nm boot |
70567b1c | 13 | .Nd |
50d77188 | 14 | system bootstrapping procedures |
70567b1c | 15 | .Sh DESCRIPTION |
70567b1c | 16 | .Sy Power fail and crash recovery. |
6f5c285b | 17 | Normally, the system will reboot itself at power-up or after crashes. |
50d77188 | 18 | An automatic consistency check of the file systems will be performed, |
6f5c285b | 19 | and unless this fails, the system will resume multi-user operations. |
70567b1c | 20 | .Pp |
50d77188 | 21 | .Sy Cold starts. |
6f5c285b | 22 | These are processor-type dependent. |
70567b1c CL |
23 | On the |
24 | .Tn CCI | |
25 | Power 6/32 and related processors, | |
6f5c285b MK |
26 | the system will do a standard autoboot from drive 0 |
27 | upon power-up or reset. | |
70567b1c CL |
28 | This automatic boot may be cancelled by typing a |
29 | .Ql \&# | |
6f5c285b | 30 | in the first few seconds after reset. |
70567b1c CL |
31 | This enters console mode; the console prompt is |
32 | .Ql > | |
33 | or | |
34 | .Ql \&# . | |
35 | The boot flags can be set to any hexadecimal value | |
36 | .Fl n | |
37 | with the command | |
38 | .Pp | |
39 | .Bd -filled -offset indent -compact | |
40 | .Li \&#> p23 | |
41 | .Ar n . | |
42 | .Ed | |
43 | .Pp | |
6f5c285b MK |
44 | The default device may be examined or set; see the Diagnostics and Debugging |
45 | manual for the processor for details on device naming and syntax. | |
46 | After setting the boot flags and/or device, | |
47 | a bootstrap sequence can be initiated with | |
70567b1c CL |
48 | .Pp |
49 | .Dl #> fb | |
50 | .Pp | |
6f5c285b | 51 | A specific device or bootstrap file may be used; for example, |
70567b1c CL |
52 | .Pp |
53 | .Dl \&#> \&fb xfd(1,0) | |
54 | .Pp | |
55 | would boot from the `a' partition on | |
56 | .Tn XFD | |
57 | drive 1. | |
58 | .Pp | |
6f5c285b | 59 | The file specifications used for the boostrap |
70567b1c CL |
60 | when loaded with the |
61 | .Dq askme | |
62 | flag | |
6f5c285b MK |
63 | (register 23 set to 1 or 3) |
64 | are of the form: | |
70567b1c CL |
65 | .Pp |
66 | .Dl device(adaptor,controller,unit,minor) | |
67 | .Pp | |
6f5c285b | 68 | where |
70567b1c | 69 | .Ar device |
6f5c285b | 70 | is the type of the device to be searched, |
70567b1c CL |
71 | .Ar adaptor |
72 | is number of the | |
73 | .Tn VERSAbus | |
74 | (or | |
75 | .Tn VMEbus ) | |
76 | to which the device is attached, | |
77 | .Ar controller | |
6f5c285b | 78 | is the unit number of the controller on that buss, |
70567b1c | 79 | .Ar unit |
6f5c285b MK |
80 | is the unit number of the disk or tape, |
81 | and | |
70567b1c | 82 | .Ar minor |
6f5c285b MK |
83 | is the disk partition or tape file number. |
84 | Leading adaptor or controller numbers default to 0. | |
85 | Normal line editing characters can be used when typing the file specification. | |
86 | The following list of supported devices may vary from installation to | |
87 | installation: | |
70567b1c CL |
88 | .Pp |
89 | .Bd -unfilled -offset indent -compact | |
90 | dk SMD or ESDI disks on VDDC or SMD-E | |
91 | cy tape on Ciprico Tapemaster controller | |
92 | .Ed | |
93 | .Pp | |
6f5c285b MK |
94 | For example, |
95 | to boot from a file system which starts at cylinder 0 | |
70567b1c CL |
96 | of unit 0 of an |
97 | .Tn SMD-E | |
98 | disk, type | |
99 | .Ql dk(0,0)vmunix | |
100 | to the boot prompt; | |
101 | .Ql dk(2,1,0)vmunix | |
102 | would specify drive 1 on | |
103 | .Tn SMD-E | |
104 | controller 2. | |
105 | .Pp | |
6f5c285b | 106 | In an emergency, the bootstrap methods described in the paper |
70567b1c CL |
107 | .%T "Installing and Operating 4.3 BSD-tahoe UNIX on the Tahoe" |
108 | can be used | |
6f5c285b | 109 | to boot from a distribution tape. |
70567b1c CL |
110 | .Sh FILES |
111 | .Bl -tag -width /vmunix -compact | |
112 | .It Pa /vmunix | |
113 | system code | |
114 | .It Pa /boot | |
115 | system bootstrap | |
116 | .El | |
117 | .Sh SEE ALSO | |
70567b1c | 118 | .Xr halt 8 , |
50d77188 KB |
119 | .Xr reboot 8 , |
120 | .Xr shutdown 8 | |
70567b1c | 121 | .Sh BUGS |
6f5c285b | 122 | The disklabel format used by some versions of the console processor |
70567b1c CL |
123 | is different than the format used by |
124 | .Tn UNIX | |
125 | and the bootstrap. | |
126 | .Sh HISTORY | |
127 | The | |
128 | .Nm | |
f6966289 CL |
129 | command is |
130 | .Ud . |