<html><body bgcolor="#FFFFFF"><div>Tools is enough. It supports all existing versions of the kernel fs. <br><br>On Jul 4, 2009, at 6:10 AM, <a href="mailto:sylarrrrrrr@aim.com">sylarrrrrrr@aim.com</a> wrote:<br><br></div><div></div><blockquote type="cite"><div>
<div><font face="Arial, Helvetica, sans-serif">Hi, </font></div>
<div><font face="Arial, Helvetica, sans-serif"></font></div>
<div><font face="Arial, Helvetica, sans-serif"> Thanks :)</font><br>
</div>
<div><font face="Arial, Helvetica, sans-serif"></font></div>
<div><font face="Arial, Helvetica, sans-serif">BTW, Do I need to upgrade the kernel module too, or just the ocfs2-tools package? </font></div>
<div><font face="Arial, Helvetica, sans-serif"></font></div>
<div><font face="Arial, Helvetica, sans-serif">If I need to upgrade the module too ... I am having trouble compiling it under debian lenny, I have posted about it in the users gourps.</font></div>
<br>
<br>
-----Original Message-----<br>
From: Marcos E. Matsunaga <<a href="mailto:Marcos.Matsunaga@oracle.com">Marcos.Matsunaga@oracle.com</a>><br>
To: <a href="mailto:sylarrrrrrr@aim.com"><a href="mailto:sylarrrrrrr@aim.com">sylarrrrrrr@aim.com</a></a><br>
Cc: <a href="mailto:ocfs2-devel@oss.oracle.com"><a href="mailto:ocfs2-devel@oss.oracle.com">ocfs2-devel@oss.oracle.com</a></a><br>
Sent: Wed, Jul 1, 2009 12:45 pm<br>
Subject: Re: [Ocfs2-devel] mounting a snapshot for backup.<br>
<br>
<div id="AOLMsgPart_2_6da278b1-2dca-4c64-90a6-f96c6e39ab91">
<tt><a class="moz-txt-link-freetext" target="_blank" href="http://oss.oracle.com/projects/ocfs2-tools/news/article_7.html"><a href="http://oss.oracle.com/projects/ocfs2-tools/news/article_7.html">http://oss.oracle.com/projects/ocfs2-tools/news/article_7.html</a></a><br>
<br>
<br>
see tunefs.ocfs2 note.<br>
<br>
</tt><br>
<a class="moz-txt-link-abbreviated" href="mailto:sylarrrrrrr@aim.com"><a href="mailto:sylarrrrrrr@aim.com">sylarrrrrrr@aim.com</a></a> wrote:
<blockquote type="cite">
<div><font face="Arial, Helvetica, sans-serif">Hi</font></div>
<div><font face="Arial, Helvetica, sans-serif">I have an ocfs2 volume
(1.4.1) on lvm2, which is made avai
lable on 2 nodes via dual primary
drbd that is on it. I wanted to backup my volume, so naturally I made a
snapshot of it via the lvm2, and tried to mount it for backing up.
However, I got the following error in dmesg :</font></div>
<div><font face="Arial, Helvetica, sans-serif">[319981.478168]
(23483,0):ocfs2_fill_super:700 ERROR: Unable to create per-mount
debugfs root.</font></div>
<div><font face="Arial, Helvetica, sans-serif">I then searched a bit,
and found that ocfs2 can't mount an already mounted volume, and I was
suggested to change the UUID of the snapshot device in order to be able
to mount it.</font></div>
<div><font face="Arial, Helvetica, sans-serif">So I tried using
tunefs.ocfs2 and got the following error:</font></div>
<div><font face="Arial, Helvetica, sans-serif">tunefs.ocfs2 1.4.1<br>
tunefs.ocfs2: Trylock failed while locking down the cluster<br>
<br>
So I searched a bit and found that there was a patch suggestion for
--force option to tunefs,<br>
</font></div>
<div><font face="Arial, Helvetica, sans-serif"><a class="moz-txt-link-freetext" target="_blank" href="http://oss.oracle.com/pipe"><a href="http://oss.oracle.com/pipe">http://oss.oracle.com/pipe</a></a>
rmail/ocfs2-devel/2008-July/002447.html</font></div>
<div><font face="Arial, Helvetica, sans-serif">and that it was
rejected,</font></div>
<div><font face="Arial, Helvetica, sans-serif"><a class="moz-txt-link-freetext" target="_blank" href="http://oss.oracle.com/pipermail/ocfs2-devel/2008-July/002449.html"><a href="http://oss.oracle.com/pipermail/ocfs2-devel/20">http://oss.oracle.com/pipermail/ocfs2-devel/20</a>
08-July/002449.html</a></font></div>
<div><font face="Arial, Helvetica, sans-serif">and some ominous
warnings,</font></div>
<div><font face="Arial, Helvetica, sans-serif"><a class="moz-txt-link-freetext" target="_blank" href="http://oss.oracle.com/pipermail/ocfs2-devel/2008-July/002450.html"><a href="http://oss.oracle.com/pipermail/ocfs2-devel/2008-July/002450.html">http://oss.oracle.com/pipermail/ocfs2-devel/2008-July/002450.html</a></a></font></div>
<div><font face="Arial, Helvetica, sans-serif">o well... now how am I
supposed to backup my live ocfs2 volume? Make a virtual machine that
will have just that snapshot device?</font></div>
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