Date: Thu, 17 Mar 2005 00:32:46 -0600 From: Jon Noack <noackjr@alumni.rice.edu> To: Jeff Smick <sprsquish@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: ATAPICAM Problem Message-ID: <4239248E.4030005@alumni.rice.edu> In-Reply-To: <669ac2d05031617544216b6d2@mail.gmail.com> References: <669ac2d050316073078b2e909@mail.gmail.com> <20050316211259.0BEEC5D07@ptavv.es.net> <669ac2d05031617544216b6d2@mail.gmail.com>
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On 03/16/05 19:54, Jeff Smick wrote: > On Wed, 16 Mar 2005 13:12:58 -0800, Kevin Oberman <oberman@es.net> wrote: >>>Date: Wed, 16 Mar 2005 07:30:14 -0800 >>>From: Jeff Smick <sprsquish@gmail.com> >>>Sender: owner-freebsd-current@freebsd.org >>> >>>If there's an idiot of the week list you can put my name on top. I >>>went back to the handbook and realized I wasn't doing the very first >>>step (I did it the first time, but not after that). I forgot to run >>>'config KERNEL' after setting new options. It works now. >>> >>>I sincerely appreciate all your efforts. >> >>Please don't do this. There was just a case on stable@ (I think) where >>someone had hosed their system this way. It can be dangerous although it >>almost always works and it is needed in current in just one case: >>* If you have installed only the kernel source code >> >>It is also safe when your sources have not changed since the last kernel >>build (which is likely the case for you), but it is NOT safe on current >>if the sources have been updated, so I tend to strongly discourage its >>use in all normal circumstances. >> >>I would suggest: >>cd /usr/src >>make -DMODULES_WITH_WORLD kernel KERNCONF=config_file_name >> >>This will only rebuild the kernel and not the modules, so it will be >>fast. It is also safe in all cases where full sources are present. > > Thank you for the tip. I only knew about the options presented in the > handbook on building a custom kernel and running "make buildkernel > KERNCONF=blah" gave me "make: don't know how to make buildkernel. > Stop" > > Is there something I need to do to be able to use that tactic or > should I just stick with your suggestion? Were you in /usr/src when you tried to 'make buildkernel KERNCONF=blah'? The buildkernel target is defined in /usr/src/Makefile.inc1 (included from /usr/src/Makefile). Therefore, 'make buildkernel' will only work in /usr/src. The handbook section on building a kernel the "new way" lists the steps as follows: 1) # cd /usr/src 2) # make buildkernel KERNCONF=MYKERNEL 3) # make installkernel KERNCONF=MYKERNEL The handbook is a bit confusing on this. It calls the config(8) kernel build the "traditional way" and 'make buildkernel' the "new way". If I am a new user and don't want to stray far from the norm, wouldn't I pick the "traditional way"? Shouldn't we make it more clear the "new way" is the "recommended and officially sanctioned way"? Jon
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