From: Pavel Machek <pavel@ucw.cz>
To: Eric Sandeen <sandeen@redhat.com>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>,
linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Add a norecovery option to ext3/4?
Date: Wed, 11 Apr 2007 20:06:39 +0000 [thread overview]
Message-ID: <20070411200639.GC5881@ucw.cz> (raw)
In-Reply-To: <4619B202.3050601@redhat.com>
Hi!
> >Distribution installers usually try to probe OSes for
> >building a suited
> >grub menu. Unfortunately, mounting an ext3 partition,
> >even in read-only
> >mode, does perform some operations on the filesystem
> >(log recovery).
> >This is not a good idea since it may silently garbage
> >data.
>
> Can you elaborate? Under what circumstances is log
> replay going to harm data? Do you mean that the
Suspend machine, boot from CD trying to read from HDD, resume. People
lost data because of this trap.
Imagine _broken_ disk, with hw dying. Would you rather replay log,
possibly corrupting it even more, or read few files you do care about?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2007-04-12 11:18 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-09 0:05 Add a norecovery option to ext3/4? Samuel Thibault
2007-04-09 3:24 ` Eric Sandeen
2007-04-09 3:31 ` Samuel Thibault
2007-04-09 3:42 ` Eric Sandeen
2007-04-09 14:00 ` Theodore Tso
2007-04-09 4:29 ` Brad Campbell
2007-04-09 10:14 ` Andreas Dilger
2007-04-09 13:42 ` Valdis.Kletnieks
2007-04-09 16:37 ` Jan Engelhardt
2007-04-11 20:06 ` Pavel Machek [this message]
2007-04-09 15:43 ` Phillip Susi
2007-04-09 16:20 ` Kyle Moffett
2007-04-09 17:21 ` Eric Sandeen
2007-04-10 7:22 ` Jörn Engel
2007-04-10 11:27 ` Theodore Tso
2007-04-10 12:08 ` Jörn Engel
2007-04-10 16:44 ` Matt Mackall
2007-04-10 18:54 ` Phillip Susi
2007-04-10 19:18 ` Eric Sandeen
2007-04-10 22:04 ` Phillip Susi
2007-04-11 20:09 ` Bill Davidsen
2007-04-12 13:54 ` Benny Amorsen
2007-04-15 18:49 ` Pavel Machek
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