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Date:      Mon, 25 Apr 2011 00:18:26 -0400
From:      Arnaud Lacombe <lacombar@gmail.com>
To:        "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, Alexander Motin <mav@freebsd.org>
Cc:        FreeBSD-Current <freebsd-current@freebsd.org>
Subject:   Re: Switch from legacy ata(4) to CAM-based ATA
Message-ID:  <BANLkTikSD3AGxkUAQsEQTjr8LQDiAXt=wg@mail.gmail.com>
In-Reply-To: <DACA5DEF-C004-4818-B658-21045582E480@lists.zabbadoz.net>
References:  <4DAEAE1B.70207@FreeBSD.org> <20110420203754.GM85668@acme.spoerlein.net> <4DAF46F8.9040004@FreeBSD.org> <BCE89DC7-116D-48E1-BD86-DF986062B0CC@samsco.org> <DACA5DEF-C004-4818-B658-21045582E480@lists.zabbadoz.net>

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Hi,

On Thu, Apr 21, 2011 at 3:51 AM, Bjoern A. Zeeb
<bzeeb-lists@lists.zabbadoz.net> wrote:
> [...]
>
> I agree that we need to catch up with something but we should have done s=
o a year ago.
>
> a) we MUST HAVE a transition scheme if we cam-base ATA by default. Someth=
ing that converts things automatically to whatever? =A0That's not been done=
 in more than one year. =A0It's not acceptable to update, reboot and not fi=
nd the root file system no matter what. =A0We all agreed on that back then.=
 =A0I do not really care how it's done.
> =A0I have been testing cam based ata for a while now on the machines I ca=
n cope with as a developer and even then I screwed the transition partly tw=
o times in the last months. =A0How's a normal user to do that flawlessly?
>
For the record, it would seem that Alexander did not provide any
follow-up to this message, but still decided to go forward. I would be
interested to have his answer to your question.

Thanks,
 - Arnaud

> b) FYI: labels and stacked geoms do not work well together as you can nev=
er detach providers cleanly then, which basically means you are at risk of =
data loss with every reboot. =A0I was told multiple times that this is not =
fixable. =A0If it is labels seem to be a great why to go. =A0For now I have=
 to compile them out/disable them unfortunately so they are not an option, =
and they'll be less so if the new installer also offers gmirror, geli, ... =
installs.
>
> Give me a solution that works out of the box and I'll happily agree that =
we switch.
>
FWIW, so do I.

> /bz
>
> --
> Bjoern A. Zeeb =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 You have to have visions!
> =A0 =A0 =A0 =A0 Stop bit received. Insert coin for new address family.
>
> _______________________________________________
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