From: Brad Campbell <brad@wasp.net.au>
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: Mon, 09 Apr 2007 08:29:10 +0400 [thread overview]
Message-ID: <4619C116.1090702@wasp.net.au> (raw)
In-Reply-To: <4619B202.3050601@redhat.com>
Eric Sandeen wrote:
> Samuel Thibault wrote:
>> 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 installer mounts partitions, looking for
> what OS is installed? How is that harmful?
>
It'll wreak havoc on my hibernated system when I've suspended it to do a test OS install on one of
my spare partitions. The log replay will go fine, but then when the system resumes it's idea of
what's on the disk won't match what is really there and ugly, ugly things happen.
Brad
--
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams
next prev parent reply other threads:[~2007-04-09 4:34 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 [this message]
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
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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