Date: Tue, 13 Nov 2012 14:21:28 +0000 From: Arthur Chance <freebsd@qeng-ho.org> To: Leslie Jensen <leslie@eskk.nu> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Some thoughts about upgrading from 8.3 to 9.1 Message-ID: <50A25768.9040208@qeng-ho.org> In-Reply-To: <50A2445F.7040602@eskk.nu> References: <50A2445F.7040602@eskk.nu>
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On 11/13/12 13:00, Leslie Jensen wrote: > > I just read in another post about disklayout > _____________________________________________________________ > According to the manual as of 9.0-RELEASE the default fragment > and block sizes for newfs are 4k and 32k, so provided your > partitions/slices are 4k aligned everything Should Just Work. > Before 9.0 fragments and blocks were 2k and 16k which doesn't > play so well with 4k drives. > ____________________________________________________________ I wrote that. It's only relevant if you have recent disks with 4k hardware blocks. If you have, you ought to use 4k/16k filesystems whatever your OS rev. If you haven't, it doesn't matter. If it's not broken, don't fix it, is a very good principle. > I started thinking about the choices I have for upgrading my running 8.3 > systems. > > I'm aware about of the procedure with freebsd-upgrade and rebuilding all > ports according to man portmaster. > > > Would you just do the upgrade or would you consider reinstalling? > > Would it be beneficial to make a fresh installation? Like Erich Dollansky, I prefer to upgrade via source, but that's because I like tweaking my system in mildly non-standard ways. (More a habit than a necessity, but I've been doing it since 6th Edition Unix. :-) If you're running a vanilla install with GENERIC kernel freebsd-upgrade is probably going to be quicker even if you've got a multicore monster to recompile on. Just make sure you can reinstall if something goes bad during the upgrade and *back up anything vital first*.
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