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<tt><a class="moz-txt-link-freetext" href="http://oss.oracle.com/projects/ocfs2-tools/news/article_7.html">http://oss.oracle.com/projects/ocfs2-tools/news/article_7.html</a><br>
<br>
<br>
see tunefs.ocfs2 note.<br>
<br>
</tt><br>
<a class="moz-txt-link-abbreviated" href="mailto:sylarrrrrrr@aim.com">sylarrrrrrr@aim.com</a> wrote:
<blockquote cite="mid:8CBC856A56D83A0-16F0-2692@FWM-M16.sysops.aol.com"
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 available 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" href="http://oss.oracle.com/pipe">http://oss.oracle.com/pipe</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" href="http://oss.oracle.com/pipermail/ocfs2-devel/2008-July/002449.html">http://oss.oracle.com/pipermail/ocfs2-devel/2008-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" href="http://oss.oracle.com/pipermail/ocfs2-devel/2008-July/002450.html">http://oss.oracle.com/pipermail/ocfs2-devel/2008-July/002450.html</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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