From owner-freebsd-questions@FreeBSD.ORG  Tue Sep 11 05:24:20 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id F34F416A417
	for <freebsd-questions@freebsd.org>;
	Tue, 11 Sep 2007 05:24:19 +0000 (UTC)
	(envelope-from t41pad@googlemail.com)
Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.184])
	by mx1.freebsd.org (Postfix) with ESMTP id 9244B13C469
	for <freebsd-questions@freebsd.org>;
	Tue, 11 Sep 2007 05:24:19 +0000 (UTC)
	(envelope-from t41pad@googlemail.com)
Received: by nf-out-0910.google.com with SMTP id k4so983271nfd
	for <freebsd-questions@freebsd.org>;
	Mon, 10 Sep 2007 22:24:18 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=beta;
	h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
	bh=He28RxUE/u7qCQkBdCoxfNaIWCqsl7HNT8T0yMUAJ24=;
	b=dmcf4Vft16MQN6mnqc2sByU6n/BTW6lloKanYstU/41Y96y3IlYnlGwwu+9CeM7vfr+93Rygm8PgWSBOcOo8Tmri4xC2WsHLRyY0zDrgSGXZFo4qNLbWGh5vIeRdtpkY03FY7FQ71FlI4YE5rNs7Y6F8msO/gcaHtO5PoRt6y0I=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=beta;
	h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
	b=QEorA+PPc7gp3KEYfyszXY4YP0EWaaBSYX6v7QeTVBjLdIG1nFeFFc41sFNWAt4CygNHwALZ22xQI6XQb0BgBKstsC53Duc4gHkFzmRkaShuVVm7sO5KjQB21QST211sRtfjpEfI9AbMCsY55+G8RAk6XFDId6tjovrUw4IgThc=
Received: by 10.78.159.7 with SMTP id h7mr2324507hue.1189486681975;
	Mon, 10 Sep 2007 21:58:01 -0700 (PDT)
Received: by 10.78.185.16 with HTTP; Mon, 10 Sep 2007 21:58:01 -0700 (PDT)
Message-ID: <5a3499010709102158o4def6a84v3d2898e082abe0fa@mail.gmail.com>
Date: Tue, 11 Sep 2007 14:28:01 +0930
From: "cracker jack" <t41pad@googlemail.com>
To: freebsd-questions@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Subject: build and install a kernel to another mounted system
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 11 Sep 2007 05:24:20 -0000

Hi guys,

I hope I'm posting in the right place.
My situation is that I've got a laptop thats booted with a live-cd FreeSBIE.
My laptops HD (/dev/ad0s1a) is mounted on /tmp/fixed and I'm trying to
build and install
a kernel to that mounted filesystem, with home, tmp, var and usr
mounted on /tmp/fixed/home etc.

I've got the kernel sources extracted to /tmp/fixed/usr/src/ by the following:
# cd /path-to/6.2-RELEASE/src
# cat ssys.[a-d]* | tar -zxvf - -C /tmp/fixed/usr/src
# cat sbase.[a-d]* | tar -zxvf - -C /tmp/fixed/usr/src/

My custom kernel is in /tmp/fixed/root/kernels/CUSTOM, with a symlink
from /tmp/fixed/usr/src/sys/i386/conf/CUSTOM pointing to it.

But I'm getting errors when from /tmp/fixed/usr/src I run
# make buildkernel KERNCONF=CUSTOM

I've tried to run that under a chroot too:
# chroot /tmp/fixed
# setenv MAKEOBJDIRPREFIX /usr/obj2
# setenv DESTDIR /
# make buildkernel KERNCONF=CUSTOM

But I'm still getting errors, mainly with ACPI.

Is it possible to do what I'm looking at? ie build a custom kernel
using sources from a mounted filesystem, and install it to that
mounted filesystem?

Thanks plenty.