Date: Tue, 19 Feb 2002 16:11:04 -0800 From: "Crist J. Clark" <cjc@FreeBSD.ORG> To: Mike Meyer <mwm-dated-1014594615.8389ca@mired.org> Cc: rene@xs4all.nl, questions@FreeBSD.ORG Subject: Re: building multiple ( 2+ or more) kernels for easy switching? Message-ID: <20020219161104.G48401@blossom.cjclark.org> In-Reply-To: <15474.58551.91350.65768@guru.mired.org>; from mwm-dated-1014594615.8389ca@mired.org on Tue, Feb 19, 2002 at 05:50:15PM -0600 References: <48552002@toto.iv> <15474.58551.91350.65768@guru.mired.org>
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On Tue, Feb 19, 2002 at 05:50:15PM -0600, Mike Meyer wrote:
> rene@xs4all.nl types:
> > Hi. I'm running 4.5-STABLE, and would like to know if it's possible to have 2 or
> > more kernel configuration files built (using /usr/src% make buildkernel
> > KERNCONF=file) after one-another, and then installing whichever I need at a
> > certain time using /usr/src% make installkernel KERCONF=file..
>
> Yup, it's real easy. Just list all the config files on the KERNCONF
> line like so:
>
> KERNCONF=GURU GENERIC
>
> You can list more than two, and you don't have to build GENERIC if you
> don't want to. The first one listed - in this case GURU - will be the
> one installed by "installkernel".
That's the problem with this method. You have to do mess with the
installkernel to keep them from clobbering each other.
I like to just leave,
KERNCONF?= CUSTOM
In my make.conf(5), and then do,
# make kernel
# make kernel KERNCONF=GENERIC INSTKERNNAME=kernel.GENERIC -DNO_MODULES
This installs the CUSTOM kernel in /kernel (as well as the modules)
and then builds GENERIC and installs it in /kernel.GENERIC (and is
also nice enough to save the old one in /kernel.GENERIC.old).
--
Crist J. Clark | cjclark@alum.mit.edu
| cjclark@jhu.edu
http://people.freebsd.org/~cjc/ | cjc@freebsd.org
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