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* [TUHS] 2.11bsd boot countdown stuck at <5> on 11/73
@ 2020-05-19 18:31 Jacob Ritorto
  0 siblings, 0 replies; 3+ messages in thread
From: Jacob Ritorto @ 2020-05-19 18:31 UTC (permalink / raw)
  To: The Eunuchs Hysterical Society


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Hi,
  I had a disk in my 11/83 that I'd set up for autoboot.  The pdp11 would
load block 0, load /boot and happily count down 5 seconds, then continue on
with kernel loading & regular bringing up of the system to multiuser.
That was cool!

So I pulled that disk out and plugged it into my other system with a dual
height 11/73 (this system has same CMD CQD-200 scsi controller) and it gets
to the countdown part and stops!  I'm wondering why.

The initial bootblock load is apparently fine and loading and running of
boot is happening.. its just that the countdown stays stuck at five and I
have to hit <cr> to get it to boot (and the rest of the boot sequence is
totally normal).

I had a suspicion that maybe the clock isn't working on the 11/73.  Would
that make sense?  Maybe boot is actually using a clock somehow?  Maybe I
have to check jumpers on the 11/73 to be sure its clock is enabled?

Just thought I'd float the question here in case someone remembers this
oddity before I start digging / "use the source."

thx
jake

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* Re: [TUHS] 2.11bsd boot countdown stuck at <5> on 11/73
  2020-05-19 18:50 Noel Chiappa
@ 2020-05-20  1:20 ` Jacob Ritorto
  0 siblings, 0 replies; 3+ messages in thread
From: Jacob Ritorto @ 2020-05-20  1:20 UTC (permalink / raw)
  To: Noel Chiappa; +Cc: The Eunuchs Hysterical Society


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Shoot, already enabled.  Gonna have to dive deeper.  Thanks for the idea
though, Noel!

On Tue, May 19, 2020 at 2:50 PM Noel Chiappa <jnc@mercury.lcs.mit.edu>
wrote:

>     > From: Jacob Ritorto
>
>     > I had a suspicion that maybe the clock isn't working on the 11/73.
>     > Would that make sense?
>
> Would definitely explain the symptoms.
>
>     > Maybe I have to check jumpers on the 11/73 to be sure its clock is
>     > enabled?
>
> There is a jumper on the KFJ11-A that enables/disables the clock&register;
> W9 (closest to the handles) should be removed to enable the clock.
>
> (I really need to add the jumpers to the KDJ11-A page on the Computer
> History
> Wiki, mumble....)
>
>       Noel
>

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* Re: [TUHS] 2.11bsd boot countdown stuck at <5> on 11/73
@ 2020-05-19 18:50 Noel Chiappa
  2020-05-20  1:20 ` Jacob Ritorto
  0 siblings, 1 reply; 3+ messages in thread
From: Noel Chiappa @ 2020-05-19 18:50 UTC (permalink / raw)
  To: tuhs; +Cc: jnc

    > From: Jacob Ritorto

    > I had a suspicion that maybe the clock isn't working on the 11/73.
    > Would that make sense?

Would definitely explain the symptoms.

    > Maybe I have to check jumpers on the 11/73 to be sure its clock is
    > enabled?

There is a jumper on the KFJ11-A that enables/disables the clock&register;
W9 (closest to the handles) should be removed to enable the clock.

(I really need to add the jumpers to the KDJ11-A page on the Computer History
Wiki, mumble....)

      Noel

^ permalink raw reply	[flat|nested] 3+ messages in thread

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2020-05-19 18:31 [TUHS] 2.11bsd boot countdown stuck at <5> on 11/73 Jacob Ritorto
2020-05-19 18:50 Noel Chiappa
2020-05-20  1:20 ` Jacob Ritorto

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