[comp.unix.wizards] SCO Unix booting problem

DBarker@system-m.phx.bull.com ( Deryk Barker) (06/11/90)

Maybe  someone  has some idea what's going on here.  When I boot my SCO UNIX V
3.2  on  my 386 I have a problem that appears maybe 8 times out of 10.  As the
system comes up it obviously does some sort of equipment initialisation which,
among  other  things, turns NumLock off on my AT keyboard (which is how I know
it's doing the keyboard init).  The problem is that frequently after this init
process the system will not respond to my keyboard at all and I am dead in the
water.   If  I  get past the init with the keyboard working then everything is
fine  from  that  point  on;  until I reboot, at which time I run the gauntlet
again  and  probably  lose.   I  am convinced that it is probably some sort of
hardware problem but it NEVER happens with DOS.  Can someone suggest what sort
of init UNIX does to my hardware that DOS doesn't do?

Answers by mail please.

"Send Lawyers Guns and Money,
 Dad, get me out of this!"

          Deryk Barker
          Jupiter Software
          Victoria, BC

R022JR3H@vb.cc.cmu.edu (Joseph A. Rafail [CMU-CC]) (06/12/90)

Please unsubscribe:
		
			r022jr3h@vb.cc.cmu.edu
			wizard@pittvms.bitnet

							Thank You,

							jr3h

david@csource.OZ.AU (david nugent) (06/13/90)

In <23600@adm.BRL.MIL> DBarker@system-m.phx.bull.com ( Deryk Barker) writes:

>Maybe  someone  has some idea what's going on here.  When I boot 
>my SCO UNIX V 3.2  on  my 386 I have a problem that appears maybe 
>8 times out of 10.  As the system comes up it obviously does some 
>sort of equipment initialisation which, among  other  things, turns 
>NumLock off on my AT keyboard (which is how I know it's doing the 
>keyboard init).  The problem is that frequently after this init
>process the system will not respond to my keyboard at all and I 
>am dead in the water.

I should preface this and state that I've had no direct experience with
SCO's Unix product.  But with Xenix, I often came across this; the release
notes mentioned it specifically and explained a patch that could be
made to the kernel using adb which fixed it.  The problem is related to
handling of the LED's on the keyboard; and after the patch, they no
longer work.  Well, at least the keyboard doesn't lock up any more. :-)

On a machine which this used to happen to, I've since upgraded to
ISC's product, and I often have something similar happen - usually
a keyboard lockup except it occurs more frequently when running an
app on one of the terminal consoles which does plenty of termio
and messing with keyboard modes.  I found that unplugging the keyboard
briefly and plugging it back in achieved the same result as the SCO
patch - the LED's no longer functioned, and the keyboard became
operative again.  Anything is preferable to bringing down the
system ungraciously...

Hope this helps; I'd suggest looking in SCO's release notes to see if
you can find anything useful in there.


david

-- 
  Unique Computing Pty Ltd, Melbourne, Aust.
  david@csource.oz.au  3:632/348@fidonet  28:4100/1@signet

DBarker@system-m.phx.bull.com ( Deryk Barker) (06/15/90)

Further  to  my  original  message:  I  had  several discussions with SCO tech
support  who  could shed no light on this whatsoever.  One thing I did notice,
quite serendipitously, was that the locking/non-locking of the keyboard seemed
to  be  related  to  the moment when I first tried to press a key.  There is a
brief  window  which  lasts  approximately  from the point at which the system
announces  its  copyright  notices  to  the  point  at  which it announces the
bootload  device:  touch a key during that window and YOU'RE DEAD.  The system
comes  up  OK  and will run quite happily as long as you don't wish to use the
keyboard.   As long as you keep your ****ing paws off the keyboard during this
window  everything is AOK.  SCO tech support confirm that this also happens on
one  of  their  in-house  systems, but it doesn't happen with Xenix.  You have
been warned...

 Deryk Barker,
 Jupiter Software,
 Victoria, BC

"Send Lawyers, guns and money,
 Dad, get me out of this"