NetBSD/distrib/notes/mvme68k/prep

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.\" $NetBSD: prep,v 1.11 2001/07/24 18:02:56 nra Exp $
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.
\*M machines usually need little or no preparation before installing
.Nx ,
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other than the usual, well advised precaution of
.Em backing up all data
on any attached storage devices.
.Pp
The exception to the above is that
.Tn MVME162
,
.Tn MVME167
,
.Tn MVME172
and
.Tn MVME177
boards require a jumper to be removed or DIP switch changed before
.Nx
can be installed.
On
.Tn MVME162-LX
and
.Tn MVME172-LX
pins 1-2 of jumper J11
.Em must
be removed.
On
.Tn MVME162-P2/P4
and
.Tn MVME172-P2/P4
switch S4, position 8
.Em must
be set to OFF.
On
.Tn MVME167
and
.Tn MVME177
pins 1-2 of jumper J1
.Em must
be removed.
.Pp
Once you've made any necessary jumper changes,
the following instructions should make your machine
.Dq NetBSD Ready .
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.Pp
Power-up your MVME147 board. You should have the
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.Em bug No prompt:
.(disp
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COLD Start
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Onboard RAM start = $00000000, stop = $007FFFFF
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147-Bug\*>
.disp)
.Pp
Or, if you have an MVME162/172 or MVME167/177 board (the following boot
message is from MVME167; the others are similar):
.(disp
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MVME167 Debugger/Diagnostics Release Version 2.3 - 02/25/94
COLD Start
Local Memory Found =02000000 (&33554432)
MPU Clock Speed =33Mhz
167-Bug\*>
.disp)
.Pp
Make sure the RAM size looks ok (if you've got an 8 MB MVME147 or a
32 MB MVME167 you should
have the same value as we do). Also make sure the clock is ticking:
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.Pp
.Dl 1xx-Bug\*> Ns Ic time
.Dl Sunday 12/21/31 16:25:14
.Dl 1xx-Bug\*> Ns Ic time
.Dl Sunday 12/21/31 16:25:15
.Dl 1xx-Bug\*>
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.Pp
Note that
.Nx
bases its year at 1968, and adds the year offset in
the system's real-time clock to get the current year. So the
.Li 31
here
equates to 1999. You may have to adjust your clock using the
.Ic set
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command to comply with
.Nx "" 's
requirements. Don't worry if the
.Sq Day of the week
is not correct, as
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.Nx
doesn't use it.
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Motorola has acknowledged a year 2000 bug in some versions of the MVME147
whereby the day of the week
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doesn't get set correctly by the 147Bug PROM.
.Em It does not affect
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.Nx "" !
.Pp
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Also make sure that your board's ethernet address is initialised to
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the correct value. You'll find the address on a label on the inside of
the MVME147's front panel, and on the VMEbus P2 connector of the other
board types.
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On the MVME147, enter the last five digits of the address
using the
.Ic lsad
command. On the MVME162/172 and MVME167/177, you should use the
.Ic cnfg
command.
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.Pp
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To install successfully to a local SCSI disk, you need to ensure that
the system is aware of what targets are connected to the SCSI bus. This
can be done by issuing the following command:
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.Pp
.Dl 1xx-Bug\*> Ic iot;t
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.Pp
At this point, Bug will scan for any attached SCSI devices. After
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a short delay, a list of SCSI devices will be displayed. 147Bug will
ask if LUNs should be assigned from SCSI ids, to which you should
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answer Y. You should also answer Y when asked if the information is
to be saved to NVRAM. 16xBug does not prompt for this information.
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.Pp
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The following installation instructions will assume that your target
SCSI disk drive appears at SCSI-ID 0. If you have a tape drive, the
instructions assume is is configured for SCSI-ID 5. When the RAMDISK
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root boots,
.Nx
will refer to these devices as
.Li sd0
and
.Li rst0
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respectively. You may wish to note these down; you'll be using them
a lot. :-)