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Date:      Wed, 3 Jan 1996 21:53:15 +1030 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        phk@critter.tfs.com (Poul-Henning Kamp)
Cc:        nox@jelal.hb.north.de, bde@zeta.org.au, hackers@freebsd.org
Subject:   Re: boot from sd1?
Message-ID:  <199601031123.VAA07492@genesis.atrad.adelaide.edu.au>
In-Reply-To: <532.820656893@critter.tfs.com> from "Poul-Henning Kamp" at Jan 3, 96 09:14:53 am

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Poul-Henning Kamp stands accused of saying:
> 
> > Heyy...  maybe this is a silly idea :)  but what about adding the
> > root device to the list of things configurable with -c?  default (-1?)
> > is whatever the boot code (bios) guessed like its now, if thats wrong
> > (`cannot mount root') simply reboot with -c and tell the kernel where
> > it really is.  then write this back in dset -q...
> 
> My plan was to get somebody to make a sysctl editor to go along with the
> userconfig editor, and make it a sysctl variable :-)

Ok, so I should know better than to open my big mouth, but Poul, if you 
can answer the following questions, I'll add sysctl variable support
to userconfig() and visuserconfig() AQAP.

My -current system at work just got turned into a wordprocessor, so I
be a week or so in doing it 8(

All of these are in the context of the userconfig() function:

1) How do I obtain a list of all of the sysctl variables?
2) How do I read the value of a sysctl variable?
3) How do I determine what is a safe value for a given sysctl variable?
4) How do I write the value of a sysctl variable?

In the context of dset:

1) How do I write the default value of a sysctl variable?

As far as answers are concerned, it's fair enough for you to say 
"XXX does it in the same context, go look at that".


-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
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]] "Who does BSD?" "We do Chucky, we do."                               [[



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