Date: Tue, 26 Jul 2011 16:28:14 +0200 From: Jerome Herman <jherman@dichotomia.fr> To: freebsd-stable@freebsd.org Subject: Re: Making world but no kernel Message-ID: <4E2ECEFE.5030302@dichotomia.fr> In-Reply-To: <1311681539.1799.54.camel@xenon> References: <4E2E9F24.1040108@dichotomia.fr> <1311681539.1799.54.camel@xenon>
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On 26/07/2011 13:58, Michal Varga wrote: > On Tue, 2011-07-26 at 13:04 +0200, Jerome Herman wrote: >> Hello, >> >> I would like to know if it is possible to rebuild world, but without >> upgrading or even compiling the kernel. >> >> The problem is such : I am presently working on a FreeBSD station that >> seems to have quite a lot of problem, notably with fsck. I am starting >> to wonder whether this BSD station was properly installed, or if some of >> the system tools were pasted from older FreeBSD setup. >> Since the machine is in a remote location, I would prefer to avoid full >> reinstall if possible. Among other things, single user mode is not >> available. >> >> So I was wondering, if I get the full sources with sysinstall, can I >> make buildworld and then installworld without going through the kernel >> phase or would this be a bad idea ? >> >> Thanks for your help >> >> Jerome Herman > `make buildworld installworld` won't build and install new kernel at > all, so that basically answers your first question. You'd need to use > `make buildworld installworld kernel` for that effect. > > To answer your other concern - reinstalling FreeBSD "on the fly" should > be without any issues as long as you use the right src revisions > corresponding to your current system (and kernel). Mixing worlds and > kernels of different revisions should *mostly* work if there were no ABI > changes during that time period, but you probably don't want trying this > blindly without any means of recovery. Basically - it's doable, but I > wouldn't do it with just a single shot on my disposal. > > Note that you don't necessarily need to install a new kernel in single > user mode. While this is generally a good practice and a "safer way to > do things", I haven't even done this for half a decade, and I'm > re/installing FreeBSD builds practically on a daily basis. > > My advice: > Personally, I'd consider it much safer to roll a new build of kernel > along with the world, but again, that's just me. As you're already fully > rebuilding a possibly broken installation (which you didn't do and thus > don't know everything that might be rotting inside), chances of some > magical failure are already pretty decent. Rolling an up-to-date kernel > with the rest of the world shouldn't make them any lower, on the > opposite, might even raise your chances of a successfull reboot. > > m. > > PS: Whatever that means, please don't get your sources through > "sysinstall", that monster shouldn't even be present in a seriously > maintained FreeBSD installation. Get your sources "the proper way" with > csup: > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/cvsup.html > > (note - "csup", not "cvsup", it's explained on the page in detail) Well since I am not upgrading, but just making sure things are where they should be I figured that sysinstall was OK for the job. Any problems with sysinstall ? I have been quite happy with it in the 10+ years I have been using FreeBSD. > >
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