Date: Mon, 25 Apr 2011 09:34:12 -0600 From: Warner Losh <imp@bsdimp.com> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: src-committers@FreeBSD.org, Alexander Motin <mav@FreeBSD.org>, "Bjoern A. Zeeb" <bz@FreeBSD.org>, Robert Watson <rwatson@FreeBSD.org>, svn-src-head@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: <50385B7B-7EC8-4BC3-8F88-83F9EB4096FB@bsdimp.com> In-Reply-To: <20110425134531.GA4391@garage.freebsd.pl> References: <201104240858.p3O8wwqT024628@svn.freebsd.org> <alpine.BSF.2.00.1104241140070.36270@fledge.watson.org> <4DB441B0.8020906@FreeBSD.org> <CD028561-B550-4896-BE65-7C827BE6A34A@FreeBSD.org> <20110425134531.GA4391@garage.freebsd.pl>
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On Apr 25, 2011, at 7:45 AM, Pawel Jakub Dawidek wrote: > On Sun, Apr 24, 2011 at 06:59:40PM +0000, Bjoern A. Zeeb wrote: >> I had been pondering devfs "link"s myself, the problem is that from = the rc >> framework they come too late. If you can add a simple .ko that does = it >> programmatically on 9 that would be great. The problem is that after = booting >> the new kernel you don't know whether people had ATA_STATIC on or = not, so >> we'd have to go with the defaults, that were in 8.x (and an extra = tunable to >> flip the logic maybe)? >=20 > We do know that people have ATA_STATIC_ID, because if they don't, this > means they have their custom kernel config which doesn't contain = ATA_CAM > and when they will use it next time they recompile their kernel they > will still have /dev/adX entries. >=20 > Also, as Alexander already noted, because of all the problems with ATA > naming over the years and for other reasons too, people often hardcode > provider name in various GEOM classes metadata, so symlink won't help. Do we have a short list of the places to look? A lot of this could be = done with a script that gets run at installworld and boot time to hunt = down the old cases and report them to the user before they upgrade their = kernel (but this would mean backing out the GENERIC change for a while = to give people a chance to upgrade to label-based provisioning... Warner
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