Date: Sun, 24 Apr 2011 17:54:46 +0100 From: "Robert N. M. Watson" <rwatson@FreeBSD.org> To: Alexey Dokuchaev <danfe@FreeBSD.org> Cc: svn-src-head@freebsd.org, Alexander Motin <mav@FreeBSD.org>, src-committers@freebsd.org, "Bjoern A. Zeeb" <bz@FreeBSD.org>, svn-src-all@freebsd.org Subject: Re: svn commit: r220982 - in head: . sys/amd64/conf sys/arm/conf sys/conf sys/i386/conf sys/ia64/conf sys/mips/conf sys/mips/malta sys/pc98/conf sys/powerpc/conf sys/sparc64/conf sys/sun4v/conf Message-ID: <69D8AAE8-253B-4BD1-83E3-F300FCF3316C@FreeBSD.org> In-Reply-To: <20110424163258.GA32595@FreeBSD.org> References: <201104240858.p3O8wwqT024628@svn.freebsd.org> <alpine.BSF.2.00.1104241140070.36270@fledge.watson.org> <4DB441B0.8020906@FreeBSD.org> <20110424163258.GA32595@FreeBSD.org>
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On 24 Apr 2011, at 17:32, Alexey Dokuchaev wrote: > On Sun, Apr 24, 2011 at 06:28:48PM +0300, Alexander Motin wrote: >> What's about creating some kind of symlinks, it could be nice if it >> worked, but I don't see the way to do it on disk(9) or GEOM layers >> without breaking device's access counters and as result further = random >> problems. >=20 > Speaking on Alexander's side, I'd want to mention that many of our = users > had been bitten by obscure adX naming during past years (largely due = to > ATA_STATIC_ID option which was probably useful back in times when = there > typically was only one IDE controller present in system, but leads to = all > sorts of weird ad4-6-8's in recent years) had already migrated to = glabel > or GPT labels, to avoid precisely the issues we're talking about here. Yes, the argument is not over whether the change should be made, but how = we can get it done in time for 9.0-RELEASE in such a way that it = minimises disruption for our users. Clearly, we need the new AHCI driver = as the default in the release. But if we make upgrading (and rolling = back) significantly harder, that hurts us a lot. Ideally, we would have = shipped the migration parts in 8.2 so that 9.0 was a driver change = event, not a device naming model change event (easing in the = administrative hurdle). Robert=
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