Date: Wed, 11 Oct 2006 01:34:23 -0700 From: Garrett Cooper <youshi10@u.washington.edu> To: freebsd-questions@freebsd.org Subject: Re: custom kernel, make buildkernel and then? Message-ID: <452CAC8F.2000401@u.washington.edu> In-Reply-To: <20061011084014.W23849@192.168.11.51> References: <20061011084014.W23849@192.168.11.51>
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Zbigniew Szalbot wrote: > Hello, > > Hope you can advise me. I have a FreeBSD 6.1 stable system for which I > want to build a custom kernel. However, I am scared to death (almost > ;) and just want to make sure I have it done the right way. > > I have in the past used supfile with ports-all option and couldn't > build a custom kernel. Yesterday it dawned on me that I need sources > for that, not ports. So I ran cvsup with src-all option. Now, I > followed these steps: > > # cd /usr/src/sys/i386/conf > # mkdir /root/kernels > # cp GENERIC /root/kernels/LISTS > # ln -s /root/kernels/LISTS > > then I used procedure 2 for building the kernel the new way. > > # cd /usr/src > # make buildkernel KERNCONF=LISTS > > It all went well without any complaint (I was really puzzled - when it > comes to IT, I usually see half-empty glasses...) but now I wonder. My > next step is supposed to be make installkernel KERNCONF=LISTS > > Is it OK to do it on an already configured system? I have some usual > applications like php, mysql, apache, exim MTA configured and working. > So in other words I am trying to build a custom kernel not on a fresh > install but on an already working system (operating for 25 days). It > is not a webserver but it is running and needs these apps. My fear is > that I am likely to break something. > > Have I done the right steps? Do you think I can progress with make > installkernel? > > I have also a question about the last command in the recipe: > >> Now, shutdown the system and reboot to use your new kernel. > > Will shutdown -r now be enough? Or do I have to boot in single user mode? > > Sorry if all of these seems obvious. I am new to FreeBSD. Thank you > very much in advance! > > Warm regards, > > -- > Zbigniew Szalbot Building and installing a new custom kernel? Usually the steps consist of: 1. Edit kernel config file. 2. If you have the symlink set correctly, or the file located in the right place, just run make buildkernel installkernel KERNCONF=[configfile name] (or if you feel slick, specify the name in /etc/make.conf and run make buildkernel installkernel). 3. Reboot. -Garrett
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