From: Robert White <rwhite@pobox.com>
To: kreijack@inwind.it, Zygo Blaxell <zblaxell@furryterror.org>
Cc: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: BTRFS messes up snapshot LV with origin
Date: Sat, 29 Nov 2014 00:02:42 -0800 [thread overview]
Message-ID: <54797DA2.2080103@pobox.com> (raw)
In-Reply-To: <5479774E.1050302@inwind.it>
On 11/28/2014 11:35 PM, Goffredo Baroncelli wrote:
> I agree with you; but I have to find a "default" so during the boot
> a system can start even if snapshots are present.
No, you really _don't_ need to find such a default.
Better a system that doesn't boot than one that boots based on a guess.
I've been spending a lot of time thinking about booting while writing
underdog (http://underdog.sourceforge.net) and while booting is fragile,
an even partially incorrect boot is a system and _security_ nightmare.
If you start making preferential guesses then an intruder could trick
the system into booting from a thumb-drive or other alternate media by
coercing a UUID colision in a way that the system picks the new media.
Conflicts should _never_ be guessed at during boot. Ever.
next prev parent reply other threads:[~2014-11-29 8:02 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-16 21:35 BTRFS messes up snapshot LV with origin MegaBrutal
2014-11-17 1:42 ` Duncan
2014-11-17 6:59 ` Brendan Hide
2014-11-17 7:35 ` Daniel Dressler
2014-11-17 9:00 ` Brendan Hide
2014-11-17 19:04 ` Goffredo Baroncelli
[not found] ` <CAE8gLh=VubBbZdeKTAuWRjOxPF7C+ouUeeVvmGfT2ckYWGhQVA@mail.gmail.com>
2014-11-17 19:45 ` Fwd: " MegaBrutal
2014-11-17 20:32 ` Goffredo Baroncelli
2014-11-18 6:16 ` Chris Murphy
2014-11-18 15:42 ` Phillip Susi
2014-11-18 19:17 ` Chris Murphy
2014-11-18 20:17 ` Phillip Susi
2014-11-19 2:54 ` Chris Murphy
2014-11-19 15:20 ` Phillip Susi
2014-11-19 18:35 ` Chris Murphy
2014-11-19 19:23 ` Phillip Susi
2014-11-21 4:28 ` Zygo Blaxell
2014-11-21 6:22 ` Duncan
2014-11-21 11:35 ` Robert White
2014-11-21 11:54 ` Duncan
2014-11-21 17:56 ` Zygo Blaxell
2014-11-21 23:09 ` Duncan
2014-11-21 18:23 ` Chris Murphy
2014-11-21 22:49 ` Duncan
2014-11-21 23:41 ` Duncan
2014-11-21 23:51 ` Duncan
2014-11-22 17:34 ` Goffredo Baroncelli
2014-11-23 0:19 ` Zygo Blaxell
2014-11-25 16:34 ` Goffredo Baroncelli
2014-11-25 20:29 ` Zygo Blaxell
2014-11-25 21:59 ` Goffredo Baroncelli
2014-11-25 22:21 ` Zygo Blaxell
2014-11-25 22:47 ` Chris Murphy
[not found] ` <CAJCQCtQUM=viSoPtcJMcyKquYb1DLmEsqBi=p++uXPy63+r3Ow@mail.gmail.com>
[not found] ` <20141126021134.GR17380@hungrycats.org>
2014-11-26 4:48 ` Chris Murphy
2014-11-26 17:19 ` Goffredo Baroncelli
2014-11-27 4:15 ` Zygo Blaxell
2014-11-28 17:05 ` Goffredo Baroncelli
2014-11-29 1:25 ` Robert White
2014-11-29 7:35 ` Goffredo Baroncelli
2014-11-29 8:02 ` Robert White [this message]
2014-11-29 7:37 ` MegaBrutal
2014-11-29 4:59 ` Zygo Blaxell
2014-11-29 7:55 ` Robert White
2014-12-01 15:25 ` Zygo Blaxell
2014-11-26 3:22 ` Duncan
2014-11-26 5:11 ` Chris Murphy
2014-11-26 22:08 ` Robert White
2014-11-27 9:08 ` Duncan
2014-11-28 7:10 ` Chris Murphy
2014-11-29 7:29 ` Duncan
2014-11-29 8:20 ` Robert White
2014-11-29 9:41 ` Duncan
2014-11-29 16:33 ` Robert White
2014-11-29 16:50 ` Robert White
2014-11-30 6:46 ` Duncan
2014-11-29 21:15 ` Chris Murphy
2014-11-18 20:41 ` MegaBrutal
2014-11-19 1:29 ` Robert White
2014-11-19 3:37 ` Duncan
2014-11-21 4:24 ` Zygo Blaxell
2014-11-18 6:21 ` Chris Murphy
2014-11-18 12:13 ` Duncan
2014-11-18 20:01 ` Goffredo Baroncelli
-- strict thread matches above, loose matches on Subject: below --
2014-11-17 8:00 MegaBrutal
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