lkml.org 
[lkml]   [2007]   [Apr]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Add a norecovery option to ext3/4?
On Apr 08, 2007  22:24 -0500, Eric Sandeen wrote:
> Samuel Thibault wrote:
> >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?

If that disk was actually in use on another system but just exported
via a SAN to this node you've potentially corrupted the filesystem.

It's a bad idea to just go ahead and mount filesystems that you aren't
told to mount.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-04-09 12:17    [W:0.101 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site