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Date:      Thu, 25 Apr 2002 18:53:07 +0800
From:      "Michael Watson" <watsonmj@toomuch.com.au>
To:        <freebsd-questions@FreeBSD.org>
Subject:   FW: Existing Kernel Options
Message-ID:  <001401c1ec47$62e51ce0$6401a8c0@intranet.toomuch.com.au>

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> From: Roman Neuhauser [mailto:neuhauser@mail.cz]
> Sent: Wednesday, 24 April 2002 11:40 PM
> To: Michael Watson
> Cc: freebsd-questions@FreeBSD.org
> Subject: Re: Existing Kernel Options
>
>
> > From: "Michael Watson" <watsonmj@toomuch.com.au>
> > To: "'Roman Neuhauser'" <neuhauser@mail.cz>
> > Cc: <freebsd-questions@FreeBSD.org>
> > Subject: RE: Existing Kernel Options
> > Date: Wed, 24 Apr 2002 22:59:34 +0800
>
>     Hi Michael,
>     please, don't top post. Makes it hard to follow longer threads.
>
> > > > From: "Michael Watson" <watsonmj@toomuch.com.au>
> > > > To: <freebsd-questions@FreeBSD.org>
> > > > Subject: Existing Kernel Options
> > > > Date: Wed, 24 Apr 2002 22:34:52 +0800
> > > >
> > > > Hi All
> > > >
> > > > I am looking to do my first kernel build, so this may be a silly
> > > > question but hopefully somebody can help.
> > > >
> > > > I don't think the kernel distributed on my CD-ROM was compiled
> > > > with the same kernel options as in the GENERIC
> configuration file.
> > > > I don't want to lose any existing options when I build my new
> > > > kernel.
> > > >
> > > > Is there a way to find out what kernel options the
> existing kernel
> > > > was compiled with?
> > >
> > >     Depends. /sys/i386/conf/LINT:
> > >
> > >     # This allows you to actually store this
> configuration file into
> > >     # the kernel binary itself, where it may be later
> read by saying:
> > >     #    strings -n 3 /kernel | sed -n 's/^___//p' > MYKERNEL
> > >     #
> > >     options         INCLUDE_CONFIG_FILE     # Include
> this file in kernel
> > >
> > > Thankyou for the advice.  Unfortunately, it seems that
> the original
> > > shipped kernel was not compiled with the
> INCLUDE_CONFIG_FILE option
> > > as the suggested 'strings -n 3 ...' command returned nothing.
>
>     Umm, and what made you think the kernel on the CD is not
> built from
>     GENERIC? IIRC that's what it is.

Hi Roman

Sorry about top-posting, hopefully I've got it right now.

The kernel I am running from the distribution CD includes the firewall
(which I can enable using the firewall_enable="YES" option in my rc.conf
file).  The GENRERIC kernel configuration off the same distribution CD does
NOT include the IPFIREWALL option.

I don't know what other options might also be missing from GENERIC when I
build my new kernel.  I may end up compiling a kernel that does not work on
my system.  I would prefer to build a kernel that has all the options of my
current one, plus a couple extra that I need to include.

Don't know what IIRC is, sorry.

Cheers

Michael


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