From owner-freebsd-questions@FreeBSD.ORG Thu May 20 09:57:54 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2134C16A4CE for ; Thu, 20 May 2004 09:57:54 -0700 (PDT) Received: from internet.potentialtech.com (h-66-167-251-6.phlapafg.covad.net [66.167.251.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id EC52A43D46 for ; Thu, 20 May 2004 09:57:53 -0700 (PDT) (envelope-from wmoran@potentialtech.com) Received: from potentialtech.com (pa-plum1c-102.pit.adelphia.net [24.53.179.102]) by internet.potentialtech.com (Postfix) with ESMTP id 3B1F869A7E; Thu, 20 May 2004 12:57:53 -0400 (EDT) Message-ID: <40ACE38D.2050005@potentialtech.com> Date: Thu, 20 May 2004 12:57:49 -0400 From: Bill Moran User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.6) Gecko/20040506 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Stephen Liu References: <20040520163907.7064.qmail@web40302.mail.yahoo.com> In-Reply-To: <20040520163907.7064.qmail@web40302.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-questions@freebsd.org Subject: Re: Correct steps to recompile kernel X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 May 2004 16:57:54 -0000 Stephen Liu wrote: > Hi Bill, > > Tks for your advice. > > - snip - > >>># cd /usr/src/sys/i386/conf >>># cp GENERIC GENERIC.bak >>># cp GENERIC MYKERNEL >>># ee MYKERNEL >>>(modifying the kernel) >> >>This is good ... although making a backup of GENERIC >>is >>somewhat redundant. > > Noted with thanks. But in case of trouble where can I > get the old kernel back. GENERIC _is_ the old kernel. That's why it's recommended never to edit GENERIC, but to always copy it to a new config file. Again, it won't hurt anything to back it up ... you can never have too many backups. >>You don't mention if you've updated your source code >>or not. >>Just a warning, if you _did_ update your source >>code, you need >>to remake world as well as the kernel or you'll have >>trouble. >>If you didn't update your source, the steps outlined >>above >>should cover everything. > > No, I am not going to upgrade the kernel, only to > activate SCSI support. Sorry for not mentioning it on > my first posting. NP. I just wanted to bring it up in case. It's a fairly common mistake to update ones sources, build a new kernel without rebuilding world, and then wonder where all the problems are coming from ;) -- Bill Moran Potential Technologies http://www.potentialtech.com