On Tue, Dec 16, 2008 at 08:43:46PM +0800, C. Soragan Ong wrote:
> so let say put "set bigmem=1" into /etc/boot.conf will activate the bigmem?
> correct me if i am wrong, i am new with openbsd :)

Ok.

No, you run something like "config -e /bsd -o /bsd.new".
This will put you in an interactive editor that takes the
kernel /bsd, enables you to modify parameters in it,
and writes a new kernel /bsd.new with modified parameters.
Then you use that new kernel instead.

You can also invoke config (or rather UKC) when booting
and try modifying some parameters temporarily for that boot.

But how to find a bigmem parameter I do not know, I have
no amd64 system. Try 'help' in the config editor.

And, as pointed out before:

    If you search the archives, you'll find the clue you need to enable it
    on your own system.

See also:
    config(8)
    options(4)
    boot_config(8)
    boot_i386(8)
    boot(8)

> 
> Regards,
> Soragan
> 
> On Tue, Dec 16, 2008 at 5:49 PM, Stephan A. Rickauer <
> stephan.ricka...@ini.phys.ethz.ch> wrote:
> 
> > On Mon, 2008-12-15 at 07:39 -0800, Chris Kuethe wrote:
> > > no. the "config" program can do this without a recompile.
> >
> > I also would like to learn how to do that since we have a couple of
> > 'big' amd64 machines I could test on.
> >
> > Cheers,
> >
> > --
> >
> >  Stephan A. Rickauer
> >
> >  -----------------------------------------------------------
> >  Institute of Neuroinformatics         Tel  +41 44 635 30 50
> >  University / ETH Zurich               Sec  +41 44 635 30 52
> >  Winterthurerstrasse 190               Fax  +41 44 635 30 53
> >  CH-8057 Zurich                        Web    www.ini.uzh.ch
> >
> >
> > --
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-- 

/ Raimo Niskanen, Erlang/OTP, Ericsson AB

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