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Date:      Sat, 2 Dec 1995 17:37:05 +1100
From:      Bruce Evans <bde@zeta.org.au>
To:        bugs@FreeBSD.ORG, fenner@parc.xerox.com
Subject:   Re: Floppy drive stays on when booting /kernel -c?
Message-ID:  <199512020637.RAA29708@godzilla.zeta.org.au>

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>I am booting from the 2.1.0-RELEASE boot.flp, as I finally decided to upgrade
>my 2.0.5 box.  My ethernet cards are configured at non-standard addresses
>(well, I don't think the "standard" addresses are one of the options on
>the SMC Elite Ultra, but that's beside the point).  So I had to boot with
>/kernel -c, but then got distracted and didn't even watch it finish loading.

>I just looked over at the PC, and the floppy drive light is on (although
>the drive isn't still spinning).  The kernel is sitting there at the config>
>prompt, and I can do all I need to, but it's pretty disconcerting to see
>the drive light still on...

Did you boot from a floppy?  There are several bugs involving not turning
the floppy motor off at the right time:

* after booting from a floppy, the bootstrap doesn't turn the motor off;
  it is normally turned off when the floppy device is probed.  The probe 
  may be delayed for a long time if you boot with -c.  The probe will not
  be called if a floppy device isn't configured/enabled.

* after panics and perhaps even after normal shutdowns, the timeouts may
  be masked and/or the delays may not be long enough for the motor to be
  turned off.

Bruce



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