From: Piotr Szymaniak <szarpaj-TbOm9Ca2r9GrDJvtcaxF/A@public.gmane.org>
To: Vyacheslav Dubeyko <slava-yeENwD64cLxBDgjK7y7TUQ@public.gmane.org>
Cc: Ryusuke Konishi
<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>,
linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: NILFS: corrupt root inode after Turbo Mode?
Date: Fri, 19 Oct 2012 12:14:21 +0200 [thread overview]
Message-ID: <20121019101421.GT27763@wloczykij> (raw)
In-Reply-To: <1350628991.2028.25.camel@slavad-ubuntu>
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On Fri, Oct 19, 2012 at 10:43:11AM +0400, Vyacheslav Dubeyko wrote:
> As I can see, both dumps contains blocks of ifile with inodes
> description.
>
> I check previous e-mails and can see that maybe you dump not proper
> block. Maybe it is my misspelling in some e-mail. It needed to dump
> #734205 but as I can see you share dump of #743205 block. Firstly, to
> check that block #734205 is really empty. Because if it is not empty
> then the situation is different.
It looks more like my misspelling when I asked about how should I make
raw dump and after that it already was 743* instead of 734*. So my fault
here.
The dump looks like non-empty (attached), so I skipped this experiment
below.
>
> If the block #734205 is empty then I suggest to make some experiment:
>
> 1. Prepare dump of the corrupted partition:
>
> dd if=<partition (/dev/sdb1)> of=<image file>
>
> 2. Setup loop device for the image:
>
> losetup /dev/loop0 <image file>
>
> 3. Copy block #719300 of ifile (ino = 6) with blkoff = 2 of checkpoint
> #1843 into empty block #734205 (checkpoint #1874):
>
> dd if=/dev/loop0 of=/dev/loop0 bs=4096 skip=719300 seek=734205 count=1
>
> 4. Try to mount the loop device.
>
> Please, share results (console output and dmesg output) of this trying
> to mount.
>
> But, please, first of all, CHECK THAT TARGET BLOCK IS REALLY EMPTY. This
> manual manipulation can lead to loosing some filesystem state. Moreover,
> it can't fully recover filesystem but maybe driver can recover
> filesystem and to mount.
--
Piosenki mają dość proste i skonstruowane według znanego schematu:
istota-chłopiec spotyka w świetle srebrnego księżyca istotę-dziewczynę,
księżyc z bliżej nie wyjaśnionych przyczyn wybucha.
-- Douglas Adams, "Restaurant at The End of The Universe"
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next prev parent reply other threads:[~2012-10-19 10:14 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-08 22:25 NILFS: corrupt root inode after Turbo Mode? Piotr Szymaniak
2012-10-09 7:29 ` Vyacheslav Dubeyko
2012-10-09 10:52 ` Piotr Szymaniak
2012-10-09 12:08 ` Vyacheslav Dubeyko
2012-10-09 13:58 ` Piotr Szymaniak
2012-10-09 16:24 ` Ryusuke Konishi
[not found] ` <20121010.012440.17932600.konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>
2012-10-09 17:32 ` Vyacheslav Dubeyko
2012-10-10 7:39 ` Piotr Szymaniak
2012-10-10 10:43 ` Vyacheslav Dubeyko
2012-10-10 20:39 ` Piotr Szymaniak
2012-10-10 12:03 ` Vyacheslav Dubeyko
2012-10-10 22:03 ` Piotr Szymaniak
2012-10-11 6:50 ` Vyacheslav Dubeyko
2012-10-11 9:23 ` Piotr Szymaniak
2012-10-11 10:12 ` Vyacheslav Dubeyko
2012-10-11 18:03 ` Piotr Szymaniak
2012-10-12 7:10 ` Vyacheslav Dubeyko
2012-10-12 10:31 ` Piotr Szymaniak
2012-10-12 11:07 ` Vyacheslav Dubeyko
2012-10-12 11:40 ` Piotr Szymaniak
2012-10-14 14:55 ` Vyacheslav Dubeyko
[not found] ` <26EBDBC2-8938-41BC-8C0C-6F6F3A0FD1EC-yeENwD64cLxBDgjK7y7TUQ@public.gmane.org>
2012-10-14 20:47 ` Piotr Szymaniak
2012-10-15 5:58 ` Vyacheslav Dubeyko
2012-10-18 12:29 ` Vyacheslav Dubeyko
[not found] ` <20121014200836.GK27763@wloczykij>
2012-10-15 6:18 ` Vyacheslav Dubeyko
2012-10-18 20:15 ` Piotr Szymaniak
2012-10-19 6:43 ` Vyacheslav Dubeyko
2012-10-19 10:14 ` Piotr Szymaniak [this message]
2012-10-23 6:31 ` Vyacheslav Dubeyko
2012-10-23 8:41 ` Piotr Szymaniak
2012-10-23 9:26 ` Vyacheslav Dubeyko
2012-10-23 11:54 ` Piotr Szymaniak
2012-10-23 13:35 ` Vyacheslav Dubeyko
2012-10-24 7:36 ` Piotr Szymaniak
2012-10-25 12:13 ` Vyacheslav Dubeyko
2012-10-12 11:49 ` Christian Smith
[not found] ` <20121012114915.GE7823-Ng8wz+J301SNY5Lh21HnMTHS2PGA244I9dF7HbQ/qKg@public.gmane.org>
2012-10-12 12:28 ` Piotr Szymaniak
2012-10-12 20:56 ` Piotr Szymaniak
2012-10-09 11:53 ` Piotr Szymaniak
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